High power microwave waveguide slot antenna array

Abstract

The application discloses a high-power microwave waveguide slot antenna array, and aims at solving the problem that a rectangular waveguide slot antenna cannot radiate in extreme temperature. The application is composed of a vacuum window sealed power divider, a partition waveguide, N sets of flanges, N curved waveguides and N high-power microwave rectangular waveguide slot antennas with dielectric covers. The microwave is divided by the vacuum window sealed power divider and then input into the partition waveguide, the N sets of microwaves are transmitted through the N sets of flanges and the curved waveguides, and then input into the N high-power microwave rectangular waveguide slot antennas with dielectric covers, and finally radiated. The vacuum window sealed power divider is composed of a power divider main body, a welded cover, a sealing plate and a dielectric window. The partition waveguide is composed of a connecting plate and a partition plate. The curved waveguide is composed of a vertical waveguide and a horizontal waveguide. The high-power microwave rectangular waveguide slot antenna with the dielectric cover is composed of a dielectric cover, a slotted waveguide, a support column and a support rod. The application has the advantages of compact structure, large power capacity and application in extreme temperature.

Description

Technical Field

[0001] This invention relates to a power divider array antenna in the field of high-power microwave technology, and more particularly to a high-power microwave waveguide slot antenna array operating in the C-band. Background Technology

[0002] High-power microwave (HPM) generally refers to strong electromagnetic radiation with a frequency between 300MHz and 300GHz, a peak power greater than 100MW, or an average power greater than 1MW.

[0003] High-power microwave systems typically consist of a primary energy source, a pulsed drive source, an HPM source, and a high-power microwave antenna. The high-power microwave antenna, as the terminal element of a high-power microwave system, is one of its key components.

[0004] To improve transmission efficiency, antennas are typically arrayed. Array antennas usually require multiple input signals, while the output signal of a microwave source is often singular. To split a single input microwave into multiple outputs, a power divider is needed. Therefore, array antennas typically consist of a power divider and a rectangular waveguide slot antenna. Because multi-stage cascaded power dividers with a rectangular waveguide T-structure have advantages such as high stability, low insertion loss, good balance, wide bandwidth, and the ability to handle high power, the power dividers used in array antennas are usually multi-stage cascaded power dividers with a rectangular waveguide T-structure. Current multi-stage cascaded power dividers with a rectangular waveguide T-structure are mostly array-arranged, resulting in a large size (array arrangements are generally considered to occupy a lot of space), limiting their use in scenarios with strict size requirements. Due to their large size, they are generally not suitable for use at high altitudes or in vacuum. Therefore, no published literature has yet investigated the power distribution performance of this type of multi-stage cascaded power divider with a rectangular waveguide T-structure under extreme temperatures (-50°C and 50°C). Power dividers, serving as a bridge between high-power microwave transmission and antenna arrays, are crucial components for power allocation. Ensuring the compactness and environmental adaptability of power dividers has become a pressing challenge for researchers. Furthermore, the power capacity of a power divider varies depending on its structure; T-type power dividers typically have power capacities in the gigabyte (GW) range.

[0005] Rectangular waveguide slot antennas are the most commonly used array element antennas due to their simple structure and convenient arraying. However, current rectangular waveguide slot antennas still suffer from poor environmental adaptability. To improve the platform adaptability of array antennas while ensuring power capacity and efficiency, the interior of the rectangular waveguide slot antenna is usually evacuated. This method places high demands on the sealing structure of the rectangular waveguide slot antenna, making it difficult to implement. Therefore, current array antennas cannot achieve power division and radiation in extreme temperatures, and they are large and not compact. Furthermore, array antennas suffer from the RF breakdown problem that limits antenna power capacity, making it difficult to achieve GW-level power capacity.

[0006] Array antennas have wide applications in plasma heating, high-power microwave directed energy weapons, high-power radar, and high-energy particle radio frequency acceleration, which also means that power dividers have a variety of application environments. Therefore, how to achieve a tight arrangement of power dividers and ensure that power distribution can still be carried out in extreme temperatures, and how to enable rectangular waveguide slot antennas to still radiate HPM in extreme temperatures, is of great application value for the development of array antennas. Summary of the Invention

[0007] The technical problem to be solved by this invention is that current array antennas cannot perform power division and radiation at extreme temperatures and are large and not compact. The invention provides a high-power microwave waveguide slot antenna array with a compact structure, which can solve the problems of current array antennas being difficult to use at low temperatures of -50°C and high temperatures of 50°C, as well as being large and not compact.

[0008] The technical solution adopted by this invention to solve its technical problem is:

[0009] This invention includes a power divider and N rectangular waveguide slot antennas. The power divider is a vacuum-window sealed power divider, and the rectangular waveguide slot antennas are rectangular waveguide slot antennas with dielectric covers. The vacuum-window sealed power divider and the N rectangular waveguide slot antennas with dielectric covers are connected via a partition waveguide, N sets of flanges, and N bent waveguides. The end of this invention closer to the microwave source is defined as the input end, and the end farther from the microwave source is defined as the output end. The vacuum-window sealed power divider has an input port connected to an external microwave source. The vacuum-window sealed power divider divides the microwaves received from the microwave source into N groups of microwaves, which are then input into the partition waveguide. The partition waveguide then transmits these N groups of microwaves through the N sets of flanges and bent waveguides to the N rectangular waveguide slot antennas with dielectric covers. The N rectangular waveguide slot antennas with dielectric covers radiate the microwaves. N is a positive integer, equal to the required power division, and is generally an even number (e.g., if the power divider needs to divide 1 / 16, N equals 16; if the power divider needs to divide 1 / 32, N equals 32).

[0010] The vacuum window sealed power divider consists of a power divider body, a welded cover, a sealing plate, and a dielectric window. The power divider body has one input port connected to an external microwave source to receive the microwaves to be distributed. The power divider body has N output ports, designated as output port 1, output port 2, ..., output port n, ..., output port N, which are connected to the dielectric window, which in turn is connected to a separating waveguide. For ease of description, a central axis OO' is drawn on the upper surface of the sealing plate along the input-to-output direction. Point O is on the input end face of the vacuum window sealed power divider, and point O' is on the medium window. The vacuum window sealed power divider is symmetrical about the central axis OO'. A horizontal axis PP' is drawn through point O on the upper surface of the sealing plate. PP' is perpendicular to OO', with P being the left end and P' being the right end. The end closer to the central axis OO' in the vertical direction is designated as the upper end, and the end farther from the central axis OO' is designated as the lower end. Along the central axis OO', the end closer to point O is designated as the front end, and the end closer to point O' is designated as the rear end. The power divider body has one input port at point O and N output ports connected to the medium window near point O'. The power divider body is a cuboid with chamfered ends on the front surface, made of metal. The input port of the power divider body is connected to a microwave source to receive microwaves input from the microwave source. The welding cover is a cuboid plate with chamfered ends on its front surface. The chamfered ends of the front surface match the chamfered ends of the front surface of the power divider body. It is made of metal and seals the upper surface of the power divider body, ensuring that the input microwaves propagate within the power divider body and reducing microwave leakage. The sealing plate has the same shape as the welding cover, also a cuboid plate with chamfered ends on its front surface. It is made of 30% glass fiber PEEK material and is located on the upper surface of the welding cover. Its function is to further seal the upper surface of the power divider body on top of the sealing provided by the welding cover, thereby further reducing microwave leakage within the power divider body. The dielectric window is connected to the N output ports of the power divider body. Its function is to transmit the N sets of microwaves received from the N output ports of the power divider body to the separating waveguide during power division, and to maintain airtightness at high and low temperatures, thereby ensuring the normal use of this invention at high and low temperatures.

[0011] The rear surface of the dielectric window of the vacuum window-sealed power divider is welded to the front surface of the partition waveguide; N flanges are welded to the upper surface of the partition waveguide; the lower surfaces of the N flanges are respectively welded to the upper surface of the partition waveguide; the upper plates of the N flanges are respectively connected to the N curved waveguides (vertical waveguides of the curved waveguides) in sequence; the N curved waveguides (upper ports of the curved waveguides) are respectively connected to the N rectangular waveguide slot antennas with dielectric covers (front covers of the dielectric covers of the rectangular waveguide slot antennas with dielectric covers) in sequence.

[0012] The welding cover is welded to the upper surface of the power divider body, and the sealing plate is fixed to the upper surface of the welding cover with screws.

[0013] The power divider body is made of metal and consists of a power divider filler and a main body shell. The main body shell is composed of four parts: a bottom shell plate, a middle shell plate, a top shell plate, and a waveguide port. The power divider filler is located between the welding cover and the bottom shell plate of the main body shell, and its outer wall is enclosed by the main body shell. Power divider channels are carved into the power divider filler. The power divider channels are divided into primary, secondary, tertiary, and quaternary power divider channels according to their functions. The primary and secondary power divider channels are connected, and the tertiary and quaternary power divider channels are arranged sequentially from O to O', and are interconnected.

[0014] The top plate of the outer casing is closest to OO'. The upper surface of the middle plate of the outer casing is welded to the lower surface of the top plate. The bottom plate of the outer casing is furthest from OO'. The upper surface of the bottom plate is welded to the lower surface of the middle plate. The rear surface of the waveguide port is welded to the front surface of the middle plate. The bottom plate is a cuboid plate with a width of a3, a length of b1, and a height of h1. The bottom plate has an axisymmetric structure. The left and right ends of the front surface of the bottom plate are chamfered with a chamfer angle of θ1 and a chamfer size of c1. The chamfered surfaces of the bottom plate (i.e., the inclined chamfered surfaces formed by the chamfer) are rounded at the left and right ends of the front surface of the bottom plate with a chamfer radius of r1. The chamfered surfaces on the left end of the bottom plate are rounded at the left end of the bottom plate with a chamfer radius equal to r1. The chamfered surfaces on the right end of the bottom plate are rounded at the right end of the bottom plate with a chamfer radius equal to r1.

[0015] The outer shell's middle plate consists of a transverse middle plate, two left-inclined middle plates and two right-inclined middle plates symmetrical about the OO' axis, and two left-longitudinal middle plates and two right-longitudinal middle plates symmetrical about the OO' axis. All three middle plates—transverse, left-inclined, right-inclined, left-longitudinal, and right-longitudinal—are cuboid plates with a height of h3 and a thickness of s1. The lower rear surface of the transverse middle plate is welded to the front surface of the outer shell's bottom plate, and the width of the transverse middle plate is a2. The lengths of the left-inclined and right-inclined middle plates are both L1. The lower right surface of the left-longitudinal middle plate is welded to the left surface of the outer shell's bottom plate. The lower right surface of the right-longitudinal middle plate... The lower end of the left surface is welded to the right surface of the bottom plate of the outer shell. The lengths of the left and right longitudinal middle plates are both b2. The left end face of the transverse middle plate is welded to the right end face of the left inclined middle plate, and the right end face of the transverse middle plate is welded to the left end face of the right inclined middle plate. The inner surface of the connection is rounded with a chamfer radius of r1. The left end face of the left inclined middle plate is welded to the front end face of the left longitudinal middle plate. The inner surface of the connection is rounded with a chamfer radius of r1. The right end face of the right inclined middle plate is welded to the front end face of the right longitudinal middle plate. The inner surface of the connection is chamfered with a chamfer radius of r1. The upper plate of the outer shell is a cuboid plate with a width of a3, a length of b3, and a height of h2. The left end face of the upper plate of the outer shell is welded to the right end face of the left longitudinal middle plate. The connection point away from O' is rounded with a chamfer radius of r1. The waveguide port is symmetrical about the OO' axis. The rear end face of the waveguide port is welded to the front end face of the transverse middle plate. The outer surface of the weld is rounded with a chamfer radius of r2. The waveguide port is a cuboid plate with a width of a4, a length of b4, and a height of h3. The waveguide port and the transverse middle plate have through holes along the OO' direction (as the input port of the present invention during power distribution). The width of the through hole is d, the depth is b3, and the height is h4. The distance between the lower surface of the through hole and the lower surface of the waveguide port is h1, and the distance between the upper surface of the through hole and the upper surface of the waveguide port is h2.

[0016] The bottom plate of the outer shell has a first groove cut vertically downwards from its top surface, with a depth of h5. The first groove is a rectangular cavity with a width of a5 and a length of s3. The left and right ends of the lower surface of the first groove are rounded with a chamfer radius of r11. The distance from the rear end face of the first groove to the rear end face of the bottom plate of the outer shell is equal to s1. The first groove is symmetrical about the OO' axis. The distance from the left end face of the first groove to the left surface of the left longitudinal middle plate is s2, and the distance from the right end face of the first groove to the right surface of the right longitudinal middle plate is s2. The top plate of the outer shell has a second groove cut vertically upwards from its bottom surface, with a depth of h6. The second groove is a rectangular cavity with a width of a5 and a length of s3. The two ends of the upper surface of the second groove are rounded with a chamfer radius of r2. The distance from the rear surface of the second groove to the rear surface of the top plate of the outer shell is s1. The second groove is symmetrical about the OO' axis. The distance from the left end face of the second groove to the left surface of the left longitudinal middle plate is s2, and the distance from the right end face of the second groove to the right surface of the right longitudinal middle plate is s2. The power infill is a rectangular plate made of metallic material. The power infill has a width of a3, a length of b1, and a height of h4. It has an axisymmetric structure. The front surface of the power infill has chamfered ends at both ends, with a chamfer angle of θ1 and a chamfer radius of c1. The lower surface of the power infill is welded to the upper surface of the outer shell bottom plate. The front surface of the power infill is welded to the rear surface of the transverse middle plate. The chamfered left end of the front surface of the power infill is welded to the right surface of the left inclined middle plate, and the chamfered right end of the front surface of the power infill is welded to the left surface of the right inclined middle plate. The left end face of the power infill is welded to the right surface of the left longitudinal middle plate, and the right end face of the power infill is welded to the left surface of the right longitudinal middle plate. The rear end face of the outer shell top plate is flush with the rear end face of the power infill, and the lower surface of the outer shell top plate is welded to the upper surface of the power infill. The front end face of the welding cover is flush with the front end face of the power infill, and the lower surface of the welding cover is welded to the upper surface of the power infill. Aside from potentially unequal heights, the lower surface of the power distributor infill has the exact same shape as the upper surface of the outer shell base plate, and the lower surface of the power distributor infill is welded to the upper surface of the outer shell base plate. Therefore, the lower surface of the power distributor infill is wrapped by the outer shell base plate, and the power distributor infill is surrounded by a transverse middle plate, a left inclined middle plate, a right inclined middle plate, a left longitudinal middle plate, and a right longitudinal middle plate. The upper surface of the power distributor infill is wrapped by the outer shell top plate and the welded cover.

[0017] The power distribution filler contains primary, secondary, tertiary, and quaternary power distribution channels. The primary power distribution channel is an axisymmetric structure, consisting of N1 primary T-shaped power distribution cavities and N1 primary trapezoidal bodies. The trapezoidal bodies are made of metal, and each primary T-shaped power distribution cavity contains one primary trapezoidal body. The primary trapezoidal bodies are located within the power distribution channels carved into the power distribution filler. The lower surface of the primary trapezoidal body is welded to the upper surface of the outer shell's bottom plate; the welding surface is the hollow portion of the lower bottom surface of the power distribution filler. The upper surface of the primary trapezoidal body is welded to the lower surface of the welding cover. The long side, i.e., the rear end face, of the primary trapezoidal body is welded to the rear end face of the transverse portion of the primary T-shaped power distribution cavity. The primary T-shaped power distribution cavity consists of a transverse rectangular cavity parallel to the OO' axis and a longitudinal rectangular cavity parallel to the PP' axis. The cavities intersect perpendicularly, forming a T-shape. The width of the transverse portion of the first-stage T-shaped power distribution cavity is a1, the length is d, and the depth is h4. The width of the longitudinal portion of the first-stage T-shaped power distribution cavity is d, the length is b5, and the depth is h4. The left and right ends of the front surface of the transverse portion of the first-stage T-shaped power distribution cavity are chamfered, with a chamfer angle of θ1 and a chamfer dimension of c2. The connection between the chamfer of the first-stage T-shaped power distribution cavity and the left end face of the transverse portion of the first-stage T-shaped power distribution cavity is rounded with a chamfer radius of r4. The connection between the chamfer of the first-stage T-shaped power distribution cavity and the right end face of the transverse portion of the first-stage T-shaped power distribution cavity is rounded with a chamfer radius of r4. The connection between the chamfer of the first-stage T-shaped power distribution cavity and the two ends of the front surface of the transverse portion of the first-stage T-shaped power distribution cavity is rounded. The chamfer radius is r4; the horizontal distance from the left end face of the longitudinal section of the first-stage T-shaped power distribution cavity to the left end face of the transverse section of the first-stage T-shaped power distribution cavity is a10, and the horizontal distance from the right end face of the longitudinal section of the first-stage T-shaped power distribution cavity to the right end face of the transverse section of the first-stage T-shaped power distribution cavity is a10; the front end face of the transverse section of the first-stage T-shaped power distribution cavity and the rear end face of the longitudinal section of the first-stage T-shaped power distribution cavity are rounded at both ends at the connection point, with a chamfer radius of r3; the horizontal distance from the left end face of the transverse section of the first-stage T-shaped power distribution cavity to the right surface of the left inclined middle plate is a6, and the horizontal distance from the right end face of the transverse section of the first-stage T-shaped power distribution cavity to the left surface of the right inclined middle plate is a6; each first-stage T-shaped power distribution cavity contains a first-stage trapezoidal body, and the first-stage trapezoidal body... The body is an isosceles trapezoid. The long side of the first-stage trapezoid, i.e., the rear end face, is rounded at both ends where it connects to the transverse part of the first-stage T-shaped power distribution cavity, with a chamfer radius of r4. The length of the long side of the trapezoidal surface of the first-stage trapezoid is a7, the length of the short side is a8, the height of the trapezoidal surface is b6, the height of the first-stage trapezoid is h4, and the angle of the acute interior angle is θ2. The left slope of the first-stage trapezoid is rounded at the connection with the front end face, with a chamfer radius of r5. The right slope of the first-stage trapezoid is rounded at the connection with the front end face, with a chamfer radius of r5. The distance from the left end of the rear end face of the first-stage trapezoid to the left end of the transverse part of the first-stage T-shaped power distribution cavity is a9, and the distance from the right end of the rear end face of the first-stage trapezoid to the right end of the transverse part of the first-stage T-shaped power distribution cavity is a9.

[0018] The secondary power divider channel has an axisymmetric structure, consisting of N2 secondary T-shaped power divider cavities and N2 secondary trapezoidal bodies. The trapezoidal bodies are made of metal, and each secondary T-shaped power divider cavity contains one trapezoidal body. The trapezoidal body is located within the power divider channel carved out by the power divider filler. The lower surface of the trapezoidal body is welded to the upper surface of the outer shell base plate; the welding surface is the hollow portion of the lower bottom surface of the power divider filler. The upper surface of the trapezoidal body is welded to the lower surface of the welding cover. The long side, i.e., the rear end face, of the trapezoidal body is welded to the rear end face of the transverse portion of the secondary T-shaped power divider cavity. The secondary T-shaped power divider cavity is formed by the perpendicular intersection of a transverse rectangular cavity parallel to the OO' axis and a longitudinal rectangular cavity parallel to the PP' axis, i.e., a T-shape. The width of the transverse section of the T-shaped power distribution cavity is a11, the length is d, and the depth is h4. The width of the longitudinal section of the secondary T-shaped power distribution cavity is d, the length is b7, and the depth is h4. The transverse section of the secondary T-shaped power distribution cavity has chamfered edges at both ends of the front face, with a chamfer angle of θ1 and a chamfer dimension of c2. The left chamfer of the secondary T-shaped power distribution cavity is rounded at the connection with the left end face of the transverse section, with a chamfer radius of r4. The right chamfer of the secondary T-shaped power distribution cavity is rounded at the connection with the right end face of the transverse section, with a chamfer radius of r4. The chamfer of the secondary T-shaped power distribution cavity is rounded at the connection with both ends of the front surface of the transverse section, with a chamfer radius of r4. The secondary T-shaped power distribution cavity closest to the left inclined middle plate... The horizontal distance from the left end face of the longitudinal section of the secondary T-shaped power distribution cavity to the left end face of the transverse section is a12; the horizontal distance from the right end face of the longitudinal section of the secondary T-shaped power distribution cavity to the right end face of the transverse section of the secondary T-shaped power distribution cavity is a13; the front end face of the longitudinal section of the secondary T-shaped power distribution cavity is rounded at the end closer to the left and right end faces of the transverse section of the secondary T-shaped power distribution cavity, with a rounding radius of r3; the front end face of the transverse section of the secondary T-shaped power distribution cavity and the rear end face of the longitudinal section of the secondary T-shaped power distribution cavity are rounded at both ends of the connection, with a rounding radius of r1; the horizontal distance from the left end face of the transverse section of the secondary T-shaped power distribution cavity closest to the left inclined middle plate to the right surface of the left inclined middle plate is a14; the horizontal distance from the transverse section of the secondary T-shaped power distribution cavity closest to the right inclined middle plate is a14. The horizontal distance from the right end face to the left surface of the right inclined middle plate is equal to a14; two adjacent secondary T-shaped power distribution cavities are arranged symmetrically, and the horizontal distance between the right end face of the transverse part of the secondary T-shaped power distribution cavity and the left end face of the transverse part of the adjacent secondary T-shaped power distribution cavity is a15; each secondary T-shaped power distribution cavity contains a secondary trapezoidal body, and the long side surface of the secondary trapezoidal body, i.e., the rear end face, is welded tightly to the rear end face of the transverse part of the secondary T-shaped power distribution cavity, with rounded corners at both ends of the connection, and the corner radius is equal to r4; the secondary trapezoidal body is an isosceles trapezoidal body, with the length of the long side of the isosceles trapezoidal surface being a16, the length of the short side being a17, the height being b8, the height of the secondary trapezoidal body being h4, and the angle of the acute interior angle being θ3.The left inclined surface of the second-order trapezoid connects to the front face with a rounded corner, with a rounded corner radius of r6. The right inclined surface of the second-order trapezoid connects to the front face with a rounded corner, also with a rounded corner radius of r6. The distance from the left end of the rear face of the second-order trapezoid closest to the left inclined middle plate to the left end face of the transverse portion of the second-order T-shaped power distribution cavity is a18. The distance from the right end of the rear face of the second-order trapezoid closest to the left inclined middle plate to the right end face of the transverse portion of the second-order T-shaped power distribution cavity is a19. Adjacent second-order trapezoids are arranged axially symmetrically, and the horizontal distance between the right end of the rear face of one second-order trapezoid and the left end of the rear face of the adjacent second-order trapezoid on the right is a20.

[0019] The three-stage power divider channel has an axisymmetric structure, consisting of N3 three-stage T-shaped power divider cavities and N3 three-stage trapezoidal bodies. The trapezoidal bodies are made of metal, and each three-stage T-shaped power divider cavity contains one trapezoidal body. The trapezoidal body is located within the power divider channel carved out by the power divider filler. The lower surface of the trapezoidal body is welded to the upper surface of the outer shell's bottom plate; the welding surface is the hollow part of the lower bottom surface of the power divider filler. The upper surface of the trapezoidal body is welded to the lower surface of the welding cover. The long side face, i.e., the rear end face, of the trapezoidal body is welded to the rear end face of the transverse portion of the three-stage T-shaped power divider cavity. The three-stage T-shaped power divider cavity consists of a transverse portion parallel to the OO' axis. The three-stage T-shaped power distribution cavity is formed by the perpendicular intersection of a rectangular cavity and a longitudinal rectangular cavity parallel to the PP' axis. The lateral portion of the three-stage T-shaped power distribution cavity has a width of a21, a length of d, and a depth of h4. The longitudinal portion of the three-stage T-shaped power distribution cavity has a width of d, a length of b7, and a depth of h4. The front end face of the lateral portion of the three-stage T-shaped power distribution cavity has chamfered edges at both ends, with a chamfer angle of θ1 and a chamfer dimension of c3. The left chamfer of the three-stage T-shaped power distribution cavity is rounded at the connection point with the left end face of the lateral portion, with a chamfer radius of r4. The right chamfer of the three-stage T-shaped power distribution cavity is rounded at the right end face of the lateral portion. The end face connection is rounded with a chamfer radius of r4. The chamfer at the connection between the chamfer of the three-stage T-shaped power distribution cavity and the two ends of the front surface of the transverse section of the three-stage T-shaped power distribution cavity is rounded with a chamfer radius of r4. The horizontal distance from the left end face of the longitudinal section of the three-stage T-shaped power distribution cavity closest to the left inclined middle plate to the left end face of the transverse section of the three-stage T-shaped power distribution cavity is a22. The horizontal distance from the right end face of the longitudinal section of the three-stage T-shaped power distribution cavity closest to the left inclined middle plate to the right end face of the transverse section of the three-stage T-shaped power distribution cavity is a23. The front end face of the longitudinal section of the three-stage T-shaped power distribution cavity is rounded at the end closer to the left and right end faces of the transverse section of the three-stage T-shaped power distribution cavity, with a chamfer radius of r4. r3; The front end face of the transverse part of the three-stage T-shaped power distribution cavity and the rear end face of the longitudinal part of the three-stage T-shaped power distribution cavity are rounded at both ends at the connection point, and the chamfer radius is r7; The horizontal distance from the left end face of the transverse part of the three-stage T-shaped power distribution cavity closest to the left inclined middle plate to the left end face of the left inclined middle plate is a24, and the horizontal distance from the right end face of the transverse part of the three-stage T-shaped power distribution cavity closest to the right inclined middle plate to the right end face of the right inclined middle plate is also a24; Two adjacent three-stage T-shaped power distribution cavities are arranged axially symmetrically, and the horizontal distance between the right end face of the transverse part of the three-stage T-shaped power distribution cavity and the left end face of the transverse part of the adjacent three-stage T-shaped power distribution cavity on the right is a25.Each three-stage T-shaped power distribution cavity contains a three-stage trapezoidal body. The long side surface (rear end) of the three-stage trapezoidal body is welded tightly to the rear end face of the transverse portion of the three-stage T-shaped power distribution cavity, with rounded corners at both ends of the connection, the chamfer radius being r4. The three-stage trapezoidal body is an isosceles trapezoid, with the long side of the isosceles trapezoidal surface being a26, the short side being a27, and the height being b9. The height of the three-stage trapezoidal body is h4, and the acute interior angle is θ4. The left inclined surface of the three-stage trapezoidal body is rounded at the connection with the front end face, and the chamfer is... The radius is r3. The right inclined surface of the three-stage trapezoid is rounded at the connection with the front end, and the radius of the rounded corner is equal to r3. The distance from the left end of the rear end face of the three-stage trapezoid closest to the left inclined middle plate to the left end face of the transverse part of the three-stage T-shaped power distribution cavity is a28. The distance from the right end of the rear end face of the three-stage trapezoid closest to the left inclined middle plate to the right end face of the transverse part of the three-stage T-shaped power distribution cavity is a29. The two adjacent three-stage trapezoids are arranged axially symmetrically. The horizontal distance between the right end of the rear end face of the three-stage trapezoid and the left end of the rear end face of the adjacent three-stage trapezoid on the right is a30.

[0020] The four-stage power divider channel has an axisymmetric structure, consisting of N4 four-stage T-shaped power divider cavities and N4 four-stage capsule columns. The capsule columns are made of metal, and each four-stage T-shaped power divider cavity contains one capsule column. The capsule columns are located within the power divider channel carved out by the power divider filler. The lower surface of the capsule column is welded to the upper surface of the outer shell's bottom plate; the welded surface is the hollow portion of the lower bottom surface of the power divider filler. A portion of the upper surface of the capsule column is welded to the lower surface of the upper shell's top plate. Each four-stage T-shaped power divider cavity is formed by the perpendicular intersection of a transverse rectangular cavity parallel to the OO' axis and a longitudinal rectangular cavity parallel to the PP' axis, i.e., a T-shape. The transverse portion of the four-stage T-shaped power divider cavity has a width of a31, a length of b10, and a depth equal to h4. The longitudinal section of the four-stage T-shaped power distribution cavity has a width of d, a length of b11, and a depth of h4. The front end face of the transverse section of the four-stage T-shaped power distribution cavity has chamfered angles at both ends, with a chamfer angle of θ1 and a chamfer radius of c4. A plane parallel to the left end face of the transverse section of the four-stage T-shaped power distribution cavity, and spaced r9 from it, has a rounded corner at its intersection with the left chamfer of the four-stage T-shaped power distribution cavity, with a chamfer radius of r7. A plane parallel to the left end face of the transverse section of the four-stage T-shaped power distribution cavity, and spaced r9 from it, has a rounded corner at its intersection with the left end face of the four-stage T-shaped power distribution cavity, with a chamfer radius of r9. A plane parallel to the right end face of the transverse section of the four-stage T-shaped power distribution cavity... A plane with a distance of r9 between the right end faces of the fourth-level T-shaped power distribution cavity and the right chamfer of the fourth-level T-shaped power distribution cavity is rounded at its intersection with the right chamfer of the fourth-level T-shaped power distribution cavity, with a chamfer radius of r7. A plane parallel to the right end face of the transverse portion of the fourth-level T-shaped power distribution cavity and with a distance of r9 between the right end face of the transverse portion of the fourth-level T-shaped power distribution cavity is rounded at its intersection with the right end face of the fourth-level T-shaped power distribution cavity, with a chamfer radius of r9. The horizontal distance from the left end face of the longitudinal portion of the fourth-level T-shaped power distribution cavity to the left end face of the transverse portion of the fourth-level T-shaped power distribution cavity is c4, and the horizontal distance from the right end face of the longitudinal portion of the fourth-level T-shaped power distribution cavity to the right end face of the transverse portion of the fourth-level T-shaped power distribution cavity is c4. The front end face of the transverse portion of the fourth-level T-shaped power distribution cavity and the rear end face of the longitudinal portion of the fourth-level T-shaped power distribution cavity are rounded at both ends of the connection, with a chamfer radius of r8. The horizontal distance from the left end face of the transverse portion of the fourth-stage T-shaped power distribution cavity closest to the middle plate to the right end face of the left longitudinal middle plate is s4; the horizontal distance from the right end face of the transverse portion of the fourth-stage T-shaped power distribution cavity closest to the right longitudinal middle plate to the left end face of the right longitudinal middle plate is also s4; the fourth-stage T-shaped power distribution cavity closest to the left longitudinal middle plate has a rounded corner at the intersection with the left longitudinal middle plate, with a rounded corner radius of r4; the fourth-stage T-shaped power distribution cavity closest to the right longitudinal middle plate has a rounded corner at the intersection with the right longitudinal middle plate, with a rounded corner radius of r4; the front end face of the longitudinal portion of the fourth-stage T-shaped power distribution cavity closest to the left longitudinal middle plate has a rounded corner at the right end, with a rounded corner radius of r10; the front end face of the longitudinal portion of the fourth-stage T-shaped power distribution cavity closest to the right longitudinal middle plate has a rounded corner at the left end, with a rounded corner radius of r10.The front end face of the longitudinal section of the second closest fourth-stage T-shaped power distribution cavity to the left longitudinal center plate is rounded at the left end with a chamfer radius of r10; the front end face of the longitudinal section of the second closest fourth-stage T-shaped power distribution cavity to the right longitudinal center plate is rounded at the right end with a chamfer radius of r10; the transverse sections of adjacent fourth-stage T-shaped power distribution cavities are interconnected, and except for the two fourth-stage T-shaped power distribution cavities closest to the left and right longitudinal center plates, the other adjacent fourth-stage T-shaped power distribution cavities are arranged axially symmetrically; each fourth-stage T-shaped power distribution cavity contains a fourth-stage capsule column. The distance from the left end face of the four-stage T-shaped power divider to the left end face of the four-stage capsule cylinder is a32, and the distance from the right end face of the four-stage capsule cylinder to the right end face of the four-stage T-shaped power divider is also a32. The width of the four-stage capsule cylinder is a33, the length is b12, and the height is h4. Both ends of the four-stage capsule cylinder are rounded with a chamfer radius of r9. The distance from the front top of the four-stage capsule cylinder to the front end face of the longitudinal part of the four-stage T-shaped power divider is b13. The horizontal distance between adjacent four-stage capsule cylinders is equal, and the horizontal distance between the right end face of the four-stage capsule cylinder and the left end face of the adjacent four-stage capsule cylinder on the right is a34. The transverse part of each four-stage T-shaped power divider is separated by the four-stage capsule cylinders located within it, forming two interconnected channels, i.e., two ports, which serve as output ports for power distribution. There are N4 four-stage T-shaped power dividers with a total of N output ports, where N and N4 satisfy N = N4 * 2.

[0021] The welding cover is made of metal and seals the power divider body to ensure that the input microwaves propagate within the power divider body. The width of the welding cover is a3, the length is b14, and the height is h7. The lower surface of the welding cover is welded to the upper surface of the power divider filler. The welding cover has an axisymmetric structure. The left and right ends of the front surface of the welding cover are chamfered with an angle of θ1 and a radius of c1. The left and right ends of the rear surface of the welding cover are rounded with a radius of r1. The left chamfer of the welding cover is rounded at the connection with the left end face of the welding cover with a radius of r1. The right chamfer of the welding cover is rounded at the connection with the right end face of the welding cover with a radius of r1.

[0022] As shown, the sealing plate is a cuboid made of 30% glass fiber PEEK material, with a width of a3, a length of b14, and a height of h6. Except for the possible difference in height, the sealing plate and the welding cover are exactly the same shape. The lower surface of the sealing plate is fixed to the upper surface of the welding cover with screws.

[0023] The dielectric window is a rectangular cavity made of 30% glass fiber PEEK material, with a width of a0, a length of b15, and a height of h3. The front surface of the dielectric window is fixed to the rear surface of the bottom plate, the rear surface of the left longitudinal middle plate, the rear surface of the right longitudinal middle plate, and the rear surface of the top plate of the power divider body using screws. At a distance h8 from the upper surface of the dielectric window, a first rectangular groove with a depth of s5 is formed on the front surface of the dielectric window, extending towards the rear surface. The width of the first rectangular groove is a5, and the height is h9. At a distance h8 from the upper surface of the dielectric window, a second rectangular groove with a depth of s5 is formed on the rear surface of the dielectric window, extending towards the front surface. The width of the second rectangular groove is a5, and the height is h9. At a distance h10 from the lower surface of the dielectric window, a third rectangular groove with a depth of s5 is formed on the front surface of the dielectric window, extending towards the rear surface. The width of the third rectangular groove is a5, and the height is h9. At a distance h10 from the lower surface of the dielectric window, a third rectangular groove with a depth of s5 is formed on the rear surface of the dielectric window, extending towards the front surface. Four rectangular grooves, each with a depth of s5; the fourth rectangular groove has a width of a5 and a height of h9; the first rectangular groove is filled with a first rectangular plate, which is a metal cuboid with a width of a5, a length of s5, and a height of h9; the second rectangular groove is filled with a second rectangular plate, which is a metal cuboid with a width of a5, a length of s5, and a height of h9; the third rectangular groove is filled with a third rectangular plate, which is a metal cuboid with a width of a5, a length of s5, and a height of h9; the fourth rectangular groove is filled with a fourth rectangular plate, which is a metal cuboid with a width of a5, a length of s5, and a height of h9.

[0024] A left rectangular slot with a depth of b15 is cut from the front surface of the medium window at a distance s6 from the left end face of the medium window toward the rear surface of the medium window. The left rectangular slot is a cuboid with a width of s3 and a height of h11. The top and bottom ends of the left rectangular slot are rounded with a cuboid radius of r12. A fifth rectangular plate is filled from the front surface of the left rectangular slot toward the rear surface. The fifth rectangular plate is a metal cuboid with a width of s3, a length of b16, and a height of h11. The top and bottom ends of the fifth rectangular plate are rounded with a cuboid radius of r12. A sixth rectangular plate is filled from the rear surface of the left rectangular slot toward the front surface. The sixth rectangular plate is a metal cuboid with a width of s3, a length of b16, and a height of h11. The top and bottom ends of the sixth rectangular plate are rounded with a cuboid radius of r12. A right rectangular slot is cut on the front surface of the medium window at a distance s6 from the right end face of the medium window, extending towards the rear surface of the medium window. The depth of the right rectangular slot is b15, the width of the right rectangular slot is s3, and the height is h11. The top and bottom ends of the right rectangular slot are rounded with a chamfer radius of r12. A seventh rectangular plate, a metal cuboid, is filled from the front surface of the right rectangular slot towards the rear surface. The seventh rectangular plate has a width of s3, a length of b16, and a height of h11. The top and bottom ends of the seventh rectangular plate are rounded with a chamfer radius of r12. An eighth rectangular plate, a metal cuboid, is filled from the rear surface of the right rectangular slot towards the front surface. The eighth rectangular plate has a width of s3, a length of b16, and a height of h11. The top and bottom ends of the eighth rectangular plate are rounded with a chamfer radius of r12. Between the left and right rectangular through slots, N5 triangular prism slots are sequentially formed on the front face of the dielectric window from left to right. The upper end face of the triangular prism slot coincides with the lower surface of the first rectangular groove, and the lower end face of the triangular prism slot coincides with the upper surface of the third rectangular groove. The upper end face of the triangular prism slot is an equilateral triangle with a side length of s7. The height of the triangular prism slot is equal to h4. The function of the triangular prism slot is to increase the power capacity. Microwaves first propagate directly through the rectangle formed by the first, third, fifth, and seventh rectangular plates in the dielectric window, and then through the rectangle formed by the second, fourth, sixth, and eighth rectangular plates in the dielectric window. The rear surface of the dielectric window is connected to the front surface of the separating waveguide.

[0025] The separating waveguide, flange, and bent waveguide are all made of metallic materials.

[0026] The separating waveguide consists of a connecting plate and a separating plate. The connecting plate is a cuboid plate with a width of a0, a length of b17, and a height of h3. The separating plate consists of a top separating plate and a main separating plate.

[0027] The partition plate is a cuboid with a width of a35, a length of b18, and a height of h12, where h12 < h3. The lower end of the rear surface of the partition plate is chamfered with an angle equal to θ1 and a chamfer dimension of c5. The upper surfaces of the connecting plate and the partition plate are on the same horizontal plane. The rear surface of the connecting plate is welded to the front surface of the partition plate. The distance from the left end face of the partition plate to the left end face of the connecting plate is s9, and the distance from the right end face of the partition plate to the right end face of the connecting plate is also s9. a35 = a0 - 2 * s9.

[0028] The partition plate consists of an upper partition plate and a main partition plate, with the lower surface of the upper partition plate welded to the upper surface of the main partition plate. The upper partition plate is a cuboid with a width of a35, a length of b18, and a height of h1. A series of through holes are drilled from the upper surface of the upper partition plate to its lower surface. The depth of each through hole is h1, the width is a36, and the length is b23. The through holes are staggered from the left end to the right end of the upper partition plate. The distance from the through hole closest to the right end face of the upper partition plate to both the right end face and the rear end face is equal, both equal to s5. The distance from the through hole closest to the left end face of the upper partition plate to the left end face is s5, and the distance to the rear end face is b21. The distance between the left and right end faces of two adjacent through holes is s11.

[0029] A first rectangular through slot is cut from the front surface to the rear surface of the connecting plate, with a depth of b17, a width of a5, and a height of h4. The distance from the upper surface of the first rectangular through slot to the upper surface of the connecting plate is h1; the distance from the lower surface of the first rectangular through slot to the lower surface of the connecting plate is h2; the distance from the left end face of the first rectangular through slot to the left end face of the connecting plate is s2; and the distance from the right end face of the first rectangular through slot to the right end face of the connecting plate is s2.

[0030] The separating main board is a cuboid board with a width equal to a35, a length equal to b18, and a height of h13. The lower end of the rear surface is chamfered, the chamfering angle is equal to θ1, and the chamfering size is equal to c5. There are two kinds of grooves in the separating main board, namely large grooves and small grooves, both of which are grooved from the upper surface to the lower surface of the separating main board, and the depths are both equal to h4. The distance from the right end face of the large groove closest to the right end face of the separating main board to the right end face of the separating main board is equal to s5; the distance from the left end face of the large groove closest to the left end face of the separating main board to the left end face of the separating main board is equal to s10; the distance from the right end face of the small groove closest to the right end face of the separating main board to the right end face of the separating main board is equal to s10; the distance from the left end face of the small groove closest to the left end face of the separating main board to the left end face of the separating main board is equal to s5; the large grooves and small grooves are arranged alternately, and the distance between the left end face of the adjacent large groove and the right end face of the small groove is equal to s11; the distance from the rear surface of the large groove to the rear end face of the separating main board is equal to s5. The two ends of the front surface of the large groove are rounded, and the chamfering radius is equal to r7; the two ends of the front surface of the small groove are rounded, and the chamfering radius is equal to r7. The depth of the large groove is equal to h4, the width is a36, the length is b19, the rear surface of the large groove is chamfered, the chamfering angle is equal to θ1, and the chamfering size is c6.

[0031] The depth of the small groove is equal to h4, the width is equal to a36, the length is b20 (b20 < b19), the rear surface of the small groove is chamfered, the chamfering angle is equal to θ1, and the chamfering size is equal to c6; the distance from the rear surface of the small groove to the rear surface of the separating main board is b21.

[0032] The flange is composed of a flange bottom plate, a flange middle plate, and a flange upper plate. The upper surface of the flange bottom plate and the lower surface of the flange middle plate are welded together, and the upper surface of the flange middle plate and the lower surface of the flange upper plate are welded together; the center points of the flange bottom plate, the flange middle plate, and the flange upper plate coincide. The flange bottom plate is a cuboid board with a width of a37, a length of b22, and a height of h14; a second rectangular through groove is opened from the lower surface of the flange bottom plate to the upper surface of the flange bottom plate, with a depth equal to h14, a width equal to a36, and a length equal to b23, and the center point of the second rectangular through groove coincides with the center point of the flange bottom plate.

[0033] The flange middle plate is a cuboid board with a width of a39, a length of b25, and a height equal to h8; the lower surface of the flange middle plate is flat-welded on the upper surface of the flange bottom plate; a third rectangular through groove is opened from the lower surface of the flange middle plate to the upper surface of the flange middle plate, with a depth equal to h8, a width of a38, and a length of b24; the center point of the third rectangular through groove coincides with the center point of the flange middle plate.

[0034] The flange top plate is a cuboid plate with a width of a40, a length of b25, and a height of h15. A fourth rectangular through-slot is cut from the lower surface of the flange top plate to the upper surface, with a depth of h15, a width of d, and a length of s10. The center point of the fourth rectangular through-slot coincides with the center point of the flange top plate. The lower surfaces of the flange bottom plates of N flanges are welded to the upper surface of the partition plate. The second rectangular through-slots of the N flanges are connected to the through holes respectively. The length of the second rectangular through-slot is equal to the length of the through hole (i.e., b23), and the width of the second rectangular through-slot is equal to the width of the through hole, the width of the large groove, and the width of the small groove (i.e., a36). The length of the fourth rectangular through-slot is equal to the length of the vertical waveguide of the bent waveguide, and the width of the fourth rectangular through-slot is equal to the width of the vertical waveguide. The vertical waveguide is inserted into the fourth rectangular through-slot and fixed, with an insertion depth equal to the depth h15 of the fourth rectangular through-slot.

[0035] The curved waveguide consists of mutually perpendicular vertical and horizontal waveguides. The vertical waveguide is a cuboid plate with a width of d, a length of s10, and a height of h18. The horizontal waveguide is also a cuboid plate with a width of d, a length of b25, and a height of s10. The rear end of the upper surface of the horizontal waveguide is chamfered with a chamfer angle of θ1 and a chamfer dimension of c7. A fifth rectangular slot is cut from the lower surface to the upper surface of the vertical waveguide, with a depth of h16, a width of a38, and a length of b26. The distances from the four end faces of the fifth rectangular slot to the four end faces of the vertical waveguide are equal, all equal to s17. A sixth rectangular slot is cut from the front surface to the rear surface of the horizontal waveguide. The slot has a depth of b27, a width of a38, and a height of b26. The rear end of the upper surface of the sixth rectangular slot is rounded with a chamfer radius of r14. The distances from the four end faces of the sixth rectangular slot to the four end faces of the horizontal waveguide are equal, all equal to s17. The distance from the rear end face of the sixth rectangular slot to the rear surface of the horizontal waveguide is also equal to s17.

[0036] The lower surface of the flange's lower plate is welded to the upper surface of the partition plate of the waveguide. Each flange corresponds to a through hole, and the center point of the second rectangular through slot coincides with the center point of the through hole. The distance between adjacent flanges is 0, and the left end face of the flange is connected to the right end face of its adjacent left flange. The distance from the left end face of the flange base plate of the flange located at the leftmost end of the partition plate to the left end face of the partition plate is equal to s18, and the distance from the right end face of the flange base plate of the flange located at the rightmost end of the partition plate to the right end face of the partition plate is also equal to s18. The vertical waveguides of N curved waveguides are respectively inserted into the fourth rectangular through slots of the upper plates of N flanges, with an insertion depth equal to the height h15 of the upper plate of the flange.

[0037] The rectangular waveguide slot antenna with a dielectric radome consists of a dielectric radome, a slotted waveguide, support pillars, and support rods. The dielectric radome completely encloses the slotted waveguide, and the support pillars and rods are located between the dielectric radome and the slotted waveguide. The end closer to the microwave source is defined as the input end, and the end farther from the microwave source is defined as the output end. One open end of the dielectric radome is connected to a curved waveguide as the input port of the high-power waveguide slot array antenna with a dielectric radome, while the other end is a closed structure. The dielectric radome consists of a front radome, a main radome, and a rear radome. The front radome is located on the front face of the main radome, and the rear radome is located on the rear face of the main radome. The front and rear radomes seal the main radome. The front, main, and rear radomes are all made of fiberglass. The dielectric radome is a sealed structure; after being evacuated, it is filled with sulfur hexachloride gas.

[0038] The slotted waveguide is connected to the front cover by rivets.

[0039] The slotted waveguide consists of three parts: a rectangular base plate, two rectangular middle plates, and a rectangular top plate, all made of metal. The rectangular base plate, two rectangular middle plates, and the rectangular top plate together form a rectangular channel. For ease of description, the central axis XX' of the rectangular channel is drawn along the input-to-output direction, with point X on the input end face and point X' on the rear cover. A longitudinal axis ZZ' is drawn through point X on the input end face, perpendicular to the rectangular base plate. The end furthest from the rectangular base plate (Z' end) is the top end, and the end closest to the rectangular base plate (Z' end) is the bottom end. A transverse axis YY' is drawn through point X on the input end face, perpendicular to the longitudinal axis ZZ'. The Y end is the left end, and the Y' end is the right end. To prevent grating lobes in the far-field pattern, the width a41 of the slotted waveguide should be smaller than the free-space wavelength.

[0040] The rectangular base plate is a cuboid plate with a width of a41, a height of h19, and a length of b29. The lower surfaces of two rectangular middle plates are welded symmetrically to the left and right ends of the upper surface of the rectangular base plate along the central axis XX'. These middle plates are cuboid plates with a width of a42, a height of b26, and a length of b29. The lower surface of the rectangular top plate is laid flat and welded to the upper surface of the two middle plates along the central axis XX'. The top plate is a cuboid plate with a width of a41, a height of h9, and a length of b29. The rectangular base plate, the two middle plates, and the top plate together form a rectangular channel. The surfaces of the rectangular base plate, the two middle plates, and the top plate closest to the axis XX' are the inner surfaces. The width of the rectangular channel is a38, the height is b26, and the length is b29, where a38 = a41 - 2 * a42.

[0041] A rectangular top plate has waveguide slots along the ZZ' direction. There are K rectangular waveguide slots, each with a length of b34 and a width of a41, forming an angle θ5 with the YY' axis. On the rectangular top plate, the right end of the waveguide slot closest to X is deflected away from X by θ5, and the next waveguide slot is deflected closer to X by θ5, arranged alternately on the rectangular top plate. The waveguide slots are grooved from the upper surface of the rectangular top plate towards the rectangular bottom plate, with a groove depth of c9, where c9 > h9. The waveguide slots connect the upper surface of the rectangular top plate and the rectangular channel. The axial spacing between adjacent waveguide slots is b32. The axial spacing between the waveguide slot closest to the front cover and the slotted waveguide near the X end face is s23, and the axial spacing between the waveguide slot closest to the rear cover and the slotted waveguide near the X' end face is also s23.

[0042] The support columns are cylindrical made of fiberglass, totaling N6 columns, each with a diameter of c8 and a height of h25. The N6 support columns are distributed along the central axis XX' and fixed to the upper surface of the rectangular upper plate with screws. The axial distance between adjacent support columns is b33, and the axial distance between the support column closest to the rear cover and the rear cover is s24.

[0043] The main cover consists of three parts: a rectangular base plate, two rectangular middle plates, and a rectangular upper plate, all made of fiberglass. The rectangular base plate is symmetrically welded to the lower surface of the rectangular base plate about axis XX'; the rectangular base plate is a cuboid with a width of a43, a height of h20, and a length of b30. The two rectangular middle plates are symmetrically welded to the left and right ends of the upper surface of the rectangular base plate about the central axis XX'; the rectangular middle plates are cuboids with a width of a44, a height of h21, and a length equal to b30. The rectangular upper plate is laid flat and welded to the upper surface of the two rectangular middle plates; the rectangular upper plate is a cuboid with a width of a43, a height of h9, and a length equal to b30. The inner surfaces of the rectangular bottom cover plate, two rectangular middle cover plates, and the rectangular top cover plate closest to axis XX' are the inner surfaces. The junctions between the rectangular bottom cover plate and the two rectangular middle cover plates are rounded, with the inner surface having a chamfer radius of r12 and the outer surface having a chamfer radius of r7. The junctions between the rectangular top cover plate and the two rectangular middle cover plates are also rounded, with the inner surface having a chamfer radius of r2 and the outer surface having a chamfer radius of r15. The distance between the inner surface of the rectangular middle cover plate and the outer surface of the adjacent rectangular middle cover plate is a45, and 2*a45+2*a44+a41=a43.

[0044] The dashed lines represent invisible structural lines. The front cover is a convex-shaped metal cuboid with a width of a43, a height of h22, and a thickness of s22. On the end face of the front cover furthest from X, four rectangular grooves are cut from the edges towards the central axis XX' in four directions: top, bottom, left, and right. The third groove is the bottom one closest to Z', with a width equal to the width a43 of the rectangular bottom cover and a height equal to the height h20 of the rectangular bottom cover. The fourth groove is the left one closest to Y, with a width equal to the width a44 of the rectangular middle cover and a height equal to the height h21 of the rectangular middle cover. The fifth groove is the top one closest to Z, with a width equal to the width a44 of the rectangular middle cover and a height equal to the height h21 of the rectangular middle cover. The sixth groove is the top one closest to Z, with a width equal to the width a43 of the rectangular top cover and a height h9. The third, fourth, fifth, and sixth grooves have the same depth, s. 9; The third, fourth, fifth, and sixth grooves are interconnected; the connection between the third and fourth grooves is rounded, with the inner side near X having a chamfer radius of r12 and the outer side away from X having a chamfer radius of r7; the connection between the third and fifth grooves is rounded, with the inner side near X having a chamfer radius of r12 and the outer side away from X having a chamfer radius of r7; the connection between the sixth and fourth grooves is rounded, with the inner side near X having a chamfer radius of r2 and the outer side away from X having a chamfer radius of r15; the connection between the sixth and fifth grooves is rounded, with the inner side near X having a chamfer radius of r2 and the outer side away from X having a chamfer radius of r15; the front cover has a rectangular through-slot cut along the central axis XX' from the microwave input end face, connecting to the rectangular channel; the width of the rectangular through-slot is equal to the width of the rectangular channel a38, the height of the rectangular through-slot is equal to the height of the rectangular channel b26, and the depth is equal to s22. The distance from the lower surface of the rectangular through-slot to the lower surface of the front cover is s6, where s6 = h19 + h20; the distance from the upper surface of the rectangular through-slot to the upper surface of the front cover is s19, where s19 = h9 + h25 + h9; the distance from the left surface of the rectangular through-slot to the left surface of the front cover is a46, where a46 = a42 + a44 + a45; the distance from the right surface of the rectangular through-slot to the right surface of the front cover is equal to a46. The end face of the front cover away from X is fixedly connected to the rectangular bottom cover plate, rectangular middle cover plate, and rectangular top cover plate of the main cover near X by screws. The front surface of the front cover is welded to the front surface of the horizontal waveguide in the curved waveguide, wherein the height of the rectangular through-slot is equal to the height of the sixth rectangular through-slot (equal to b26), and the width is equal to the width of the sixth rectangular through-slot (equal to a38). The height of the rectangular through-slot coincides with the center point of the sixth rectangular through-slot and they are interconnected.

[0045] The dashed lines represent invisible structural lines. The rear cover is a convex-shaped metal cuboid with a width of a43, a height of h22, and a thickness of s22. On the end face of the rear cover furthest from X', four rectangular grooves are cut from the edges towards the central axis XX' in four directions: top, bottom, left, and right. The seventh groove is located on the bottom of the rear cover near Z', with a width equal to the width a43 of the rectangular bottom cover plate and a height equal to the height h20 of the rectangular bottom cover plate. The eighth groove is located on the right side near Y', with a width equal to the width a44 of the rectangular middle cover plate and a height equal to the height h21 of the rectangular middle cover plate. The ninth groove is located on the right side near Y', with a width equal to the width a44 of the rectangular middle cover plate and a height equal to the height h21 of the rectangular middle cover plate. The tenth groove is located on the top side near Z', with a width equal to the width a43 of the rectangular top cover plate and a height equal to h9. The seventh, eighth, and... The ninth and tenth grooves have the same depth, both equal to s9; the seventh, eighth, ninth, and tenth grooves are interconnected; the connection between the seventh and eighth grooves is rounded, with the inner side near X' having a rounded radius of r12 and the outer side away from X' having a rounded radius of r7; the connection between the seventh and ninth grooves is rounded, with the inner side near X' having a rounded radius of r12 and the outer side away from X' having a rounded radius of r7; the connection between the tenth and eighth grooves is rounded, with the inner side near X' having a rounded radius of r2 and the outer side away from X' having a rounded radius of r15; the connection between the tenth and ninth grooves is rounded, with the inner side near X' having a rounded radius of r2 and the outer side away from X' having a rounded radius of r15; the axial distance from the rear cover to the slotted waveguide near the X' end face is equal to s4, satisfying b30 = b29 + 2*s9 + s4. The end face of the rear cover away from X' is fixedly connected to the end faces of the rectangular bottom cover plate, rectangular middle cover plate, and rectangular upper cover plate of the main cover near X' by screws.

[0046] The support rod is a cuboid made of fiberglass, with a width of a45, a height of h23, and a length of b31. It is located between the rectangular middle plate and the rectangular middle cover plate and is fixed to the rectangular middle plate with screws. There are N7 support rods in total, divided into two columns, with each column containing N7 / 2 rods. They are symmetrically distributed on the left and right sides of the rectangular middle plate along the central axis XX'. The lateral spacing between the two columns of support rods is a41, and the vertical spacing between support rods in the same column is s20. The distance from the support rod closest to the rectangular bottom plate to the lower surface of the rectangular bottom plate is s21, and the distance from the support rod closest to the rectangular top plate to the upper surface of the rectangular top plate is s21.

[0047] The slotted waveguide radiates the microwaves received from the curved waveguide. The dielectric shroud encloses the slotted waveguide and is filled with sulfur hexachloride gas, which can achieve good airtightness, isolate the slotted waveguide from the external environment, and withstand low temperatures of -50°C and high temperatures of 50°C.

[0048] In the curved waveguide, the front surface of the horizontal waveguide is welded to the front surface of the front cover in the dielectric cover. The sixth rectangular through slot has the same height and width as the rectangular through slot, and the upper surface of the sixth rectangular through slot is on the same horizontal plane as the upper surface of the rectangular through slot, the lower surface of the sixth rectangular through slot is on the same horizontal plane as the lower surface of the rectangular through slot, the left surface of the sixth rectangular through slot is on the same vertical plane as the left surface of the rectangular through slot, and the right surface of the sixth rectangular through slot is on the same vertical plane as the right surface of the rectangular through slot.

[0049] The working process of this invention is as follows:

[0050] In the vacuum window sealed power divider of this invention, the through hole in the waveguide port of the power divider body 1 serves as the input port, receiving the rectangular waveguide TE signal from the microwave source. 10 The mode microwave input is distributed into N1 primary power divider channels, which then enter the N1 primary power divider channels through waveguide ports. The primary power divider channels distribute power into the rectangular waveguide TE according to equal power requirements. 10 The mode microwave is divided into N2 sections, which are then input into a secondary power divider channel; the secondary power divider channel divides the rectangular waveguide TE according to equal power. 10 The mode microwave is divided into N3 sections, which are then input into a three-stage power divider channel; the three-stage power divider channel divides the rectangular waveguide TE according to equal power. 10 The mode microwave is divided into N4 sections, which are then input into a four-stage power divider channel; the four-stage power divider channel divides the rectangular waveguide TE according to equal power. 10 The mode microwave is divided into N parts, and the rectangular waveguide TE 10 The microwave propagates from the N output ports of the power divider body 1 through the rectangle formed by the first, third, fifth, and seventh rectangular plates in the dielectric window, and then through the rectangle formed by the second, fourth, sixth, and eighth rectangular plates in the dielectric window, before being output to the split waveguides to achieve power distribution across the N waveguides. These N microwave paths then enter N curved waveguides through N flanges, and finally into N slotted waveguides. The slotted waveguides radiate the microwaves, and a dielectric envelope encloses the slotted waveguides. The dielectric envelope is filled with sulfur hexachloride gas, achieving good airtightness and isolating the slotted waveguides from the external environment, while also withstanding temperatures as low as -50°C and as high as 50°C.

[0051] The welding cover seals the upper surface of the power divider body, ensuring that the input microwave propagates in the power divider body and reducing the leakage of the microwave; the sealing plate further seals the upper surface of the power divider body, thereby further reducing the leakage of the microwave in the power divider body; the eight rectangular plates in the dielectric window ensure that the microwave is confined in the dielectric window for propagation without leakage, ensuring airtightness while ensuring electrical contact, and the dielectric window still ensures airtightness at high and low temperatures, thus ensuring the normal use of the present invention at high and low temperatures. The triangular prism groove increases the power capacity during power division and power combination.

[0052] For the convenience of description, the conditions satisfied by the structural parameters of the above designs are uniformly introduced here:

[0053] 1. The width of the longitudinal part of each level of T-shaped power division cavity is equal to the width d of the through hole 1341, and the height is equal to the height h4 of the through hole 1341, which needs to satisfy the power distribution of the rectangular waveguide TE 10 mode microwave therein, that is, λ0 / 2 < h4 < λ0, d < λ0 / 2, where λ0 is the wavelength in free space. The width of the longitudinal part of each level of T-shaped power division cavity remains the same, all equal to d. The length of the transverse part of the first-level T-shaped power division cavity 1211, the length of the transverse part of the second-level T-shaped power division cavity 1221, the length of the transverse part of the third-level T-shaped power division cavity 1231, and the width of the through hole 1341 in the waveguide port 134 are all equal, all equal to the width d of the longitudinal part of each level of T-shaped power division cavity;

[0054] 2. In order to match the impedance and reduce reflection, there is an isosceles trapezoid structure in each level of power division channel. Among them, the first-level power division channel 121, the second-level power division channel 122, and the third-level power division channel 123 are all isosceles trapezoid structures. As the number of levels increases, the acute interior angle of the isosceles trapezoid surface of the isosceles trapezoid in the power division channel gradually increases, that is, the acute interior angle θ2 of the first trapezoid 1212, the acute interior angle θ3 of the second trapezoid 1222, and the acute interior angle θ4 of the third trapezoid 1232 satisfy θ2 < θ3 < θ4.

[0055] 3. After determining the width d of the longitudinal portion of each T-type power divider, first determine the width a31 of the transverse portion of the fourth-stage T-type power divider 1241. To meet the conditions for lossless microwave transmission and reduce reflection, the following should be satisfied: width a31 of the transverse portion of the fourth-stage T-type power divider 1241, distance a32 from the left end face of the fourth-stage capsule column 1242 to the left end face of the fourth-stage T-type power divider 1241, chamfer radius r9 at both ends of the fourth-stage capsule column 1242, and width a33 of the fourth-stage capsule column 1242. Based on the number N4 of the four-stage T-shaped power distribution cavities 1241, the width a3 of the power distribution filler 11 can be obtained. The width a3 of the power distribution filler 11, the number N4 of the four-stage T-shaped power distribution cavities 1241, the width a31 of the transverse portion of the four-stage T-shaped power distribution cavity 1241, and the horizontal distance s4 from the left end face of the transverse portion of the four-stage T-shaped power distribution cavity 1241 closest to the left longitudinal middle plate 1324 to the right end face of the left longitudinal middle plate 1324 satisfy a3=s4+N4*a31+s4. After the shape and position of the four-stage T-shaped power divider 1241 are determined, the position of the transverse portion of the three-stage T-shaped power divider 1231 is also determined because its longitudinal portion is connected to the transverse portion of the three-stage T-shaped power divider 1231. The three-stage trapezoidal body 1232 divides the transverse portion of the three-stage T-shaped power divider 1231 into two channels, which are connected to the longitudinal portions of two adjacent four-stage T-shaped power dividers 1241 respectively. Under normal circumstances, the width of these two channels should also be d. However, in order to meet the conditions for lossless microwave transmission and reduce reflection, the parameters of the three-stage trapezoidal body 1232 are optimized, and the width of these two channels will deviate from d. Next, the parameters of the two-stage T-shaped power divider 1221, the two-stage trapezoidal body 1222, the one-stage T-shaped power divider 1211, and the one-stage trapezoidal body 1212 are determined in the same way. The following parameters are considered in the design: length b5 of the longitudinal section of the first-stage T-shaped power distribution cavity 1211; width a1 of the transverse section of the first-stage T-shaped power distribution cavity 1211; horizontal distance a6 from the left end face of the transverse section of the first-stage T-shaped power distribution cavity 1211 to the right surface of the left inclined middle plate 1322; horizontal distance a10 from the left end face of the longitudinal section of the first-stage T-shaped power distribution cavity 1211 to the left end face of the transverse section of the first-stage T-shaped power distribution cavity 1211; length a7 of the long side of the trapezoidal surface of the first-stage trapezoidal body 1212; length a8 of the short side of the trapezoidal surface; height b6 of the trapezoidal surface; angle θ2 of the acute interior angle; and the first-stage trapezoidal body. The following distances are considered: a9 (distance from the left end of the rear end face of body 1212 to the left end of the transverse portion of primary T-shaped power distribution cavity 1211); b7 (length of the longitudinal portion of secondary T-shaped power distribution cavity 1221); a11 (width of the transverse portion of secondary T-shaped power distribution cavity 1221); a12 (horizontal distance from the left end face of the longitudinal portion of secondary T-shaped power distribution cavity 1221 closest to the left inclined middle plate 1322 to the left end face of the transverse portion of secondary T-shaped power distribution cavity 1221); a13 (horizontal distance from the right end face of the longitudinal portion of secondary T-shaped power distribution cavity 1221 to the right end face of the transverse portion of secondary T-shaped power distribution cavity 1221).The horizontal distance a14 from the left end face of the transverse portion of the secondary T-shaped power distribution cavity 1221 closest to the left-tilted middle plate 1322 to the right surface of the left-tilted middle plate 1322; the horizontal distance a15 between the right end face of the transverse portion of the secondary T-shaped power distribution cavity 1221 and the left end face of the transverse portion of the adjacent secondary T-shaped power distribution cavity 1221 on the right; the length of the long side of the isosceles trapezoidal surface of the secondary trapezoid 1222 a16; the length of the short side of the isosceles trapezoidal surface a17; the height of the trapezoidal surface b8; the angle θ3 of the acute interior angle; the distance a18 from the left end face of the rear end face of the secondary trapezoid 1222 closest to the left-tilted middle plate 1322 to the left end face of the transverse portion of the secondary T-shaped power distribution cavity 1221; the distance a19 from the right end face of the rear end face of the secondary trapezoid 1222 closest to the left-tilted middle plate 1322. The following distances are considered: a19, a distance from the right end face of the transverse portion of the secondary T-shaped power distribution cavity 1221; a20, a horizontal distance between the right end face of the rear end face of the secondary trapezoid 1222 and the left end face of the adjacent secondary trapezoid 1222; a21, a width of the transverse portion of the tertiary T-shaped power distribution cavity 1231; a22, a horizontal distance from the left end face of the longitudinal portion of the tertiary T-shaped power distribution cavity 1231 closest to the left inclined middle plate 1322 to the left end face of the transverse portion of the tertiary T-shaped power distribution cavity 1231; a23, a horizontal distance from the right end face of the longitudinal portion of the tertiary T-shaped power distribution cavity 1231 closest to the left inclined middle plate 1322 to the right end face of the transverse portion of the tertiary T-shaped power distribution cavity 1231; and a24, a horizontal distance from the left end face of the transverse portion of the tertiary T-shaped power distribution cavity 1231 closest to the left inclined middle plate 1322. The horizontal distance a24 to the left end face of the left inclined middle plate 1322; the horizontal distance a25 between the right end face of the transverse part of the three-stage T-shaped power distribution cavity 1231 and the left end face of the transverse part of the adjacent three-stage T-shaped power distribution cavity 1231; the length of the long side of the isosceles trapezoidal surface of the three-stage trapezoidal body 1232; the length of the short side of the isosceles trapezoidal surface; the height b9 of the isosceles trapezoidal surface; the angle θ4 of the acute interior angle; the distance a28 from the left end of the rear end face of the three-stage trapezoidal body 1232 closest to the left inclined middle plate 1322 to the left end face of the transverse part of the three-stage T-shaped power distribution cavity 1231; the distance a29 from the right end of the rear end face of the three-stage trapezoidal body 1232 closest to the left inclined middle plate 1322 to the right end face of the transverse part of the three-stage T-shaped power distribution cavity 1231; the three-stage trapezoidal body... The following parameters are considered: horizontal distance a30 between the right end of the rear end face of body 1232 and the left end of the rear end face of the adjacent three-stage trapezoidal body 1232; width a31 and length b10 of the transverse portion of the four-stage T-shaped power distribution cavity 1241; length b11 of the longitudinal portion of the four-stage T-shaped power distribution cavity 1241; horizontal distance c4 from the left end face of the longitudinal portion of the four-stage T-shaped power distribution cavity 1241 to the left end face of the transverse portion of the four-stage T-shaped power distribution cavity 1241; horizontal distance s4 from the left end face of the transverse portion of the four-stage T-shaped power distribution cavity 1241 closest to the left longitudinal middle plate 1324 to the right end face of the left longitudinal middle plate 1324; distance a32 from the left end face of the four-stage capsule column 1242 to the left end face of the four-stage T-shaped power distribution cavity 1241; width a33 and length b12 of the four-stage capsule column 1242.The distance b13 from the top of the fourth-stage capsule cylinder 1242 to the front end face of the longitudinal section of the fourth-stage T-shaped power divider 1241, and the horizontal distance a34 between the right end face of the fourth-stage capsule cylinder 1242 and the left end face of the adjacent fourth-stage capsule cylinder 1242 on the right, need to achieve a 1-to-2 power distribution while ensuring the rectangular waveguide TE... 10 Microwave transmission in mode, minimizing the transmission of higher-order modes, while satisfying a1=a9+a7+a9=a10+d+a10, a11=a16+a18+a19=a12+d+a13, a20=a19+a15+a19, a34=a32+a32, a21=a22+d+a23=a28+a26+a29, a30=a29+a25+a29, a31=c4+d+c4=a33+a32+a33, 0°<θ2<θ3<θ4<90°, b10 Under the condition that the power divider's transmission efficiency is set to be greater than 99%, and the electromagnetic simulation software CST is used... Studio Suite optimizes and obtains the precise values ​​of d, a1, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20, a21, a22, a23, a24, a25, a26, a27, a28, a29, a30, a31, a32, a33, a34, c4, s4, b5, b6, b7, b8, b9, b10, b11, b12, b13, θ2, θ3, θ4, and h4.

[0056] 4. The chamfered angles at both ends of the transverse section of each power divider channel are equal to the chamfered angles θ1 at both ends of the front surface of the bottom plate 131 of the outer casing. The chamfered dimensions are c2 for the first-stage T-shaped power divider cavity 1211 and the second-stage T-shaped power divider cavity 1221, c3 for the third-stage T-shaped power divider cavity 1231, c4 for the fourth-stage T-shaped power divider cavity 1241, and r1 for the chamfered radius at the connection between the right end face of the transverse middle plate 1321 and the left end face of the right inclined middle plate 1323. The rear end face of the waveguide port 134 and the transverse middle plate 1321 are also connected. 21. Chamfer radius r2 at the connection point; chamfer radius r3 at the connection point between the front face of the transverse part of the first-stage T-shaped power distribution cavity 1211 and the rear face of the longitudinal part of the first-stage T-shaped power distribution cavity 1211; chamfer radius r4 at the connection point between the chamfered angle of the first-stage T-shaped power distribution cavity 1211 and the left end face of the transverse part of the first-stage T-shaped power distribution cavity 1211; chamfer radius r5 at the connection point between the inclined surface of the first-stage trapezoid 1212 and the front face; chamfer radius r6 at the connection point between the left inclined surface of the second-stage trapezoid 1222 and the front face; tertiary T-shaped power distribution cavity. The chamfer radius r7 at the connection between the front face of the transverse section of the 1231 and the rear face of the longitudinal section of the 1231 three-stage T-shaped power distribution cavity; the chamfer radius r8 at the connection between the front face of the transverse section of the 1241 and the rear face of the longitudinal section of the 1241 four-stage T-shaped power distribution cavity; and the chamfer radius r8 at the intersection of a plane parallel to the left end face of the transverse section of the 1241 and spaced at a distance r9 from the left end face of the transverse section of the 1241 four-stage T-shaped power distribution cavity with the left end face of the 1241 four-stage T-shaped power distribution cavity. The radius r9, the chamfer radius r10 at the right end of the front face of the longitudinal section of the fourth-stage T-shaped power divider cavity 1241 closest to the left longitudinal middle plate 1324, the chamfer radius r11 at both ends of the lower surface of the first groove 1311, and the chamfer radius r12 at both ends of the rectangular through slot all satisfy the conditions for lossless microwave transmission to reduce reflection. Furthermore, r6>r3>r11>r1>r9>r2>r10>r5>r7>r4>r8>r12, c1>c2>c4>c3.Under normal circumstances, θ1 = 45°. The chamfer radius at the connection between the right end face of the transverse middle plate 1321 and the left end face of the right inclined middle plate 1323; the chamfer radius at the connection between the left end face of the transverse middle plate 1321 and the right end face of the left inclined middle plate 1322; the chamfer radius at the connection between the left end face of the left inclined middle plate 1322 and the front end face of the left longitudinal middle plate 1324; the chamfer radius at the connection between the right end face of the right inclined middle plate 1323 and the front end face of the right longitudinal middle plate 1325; the chamfer radius at the connection between the left end face of the outer shell upper plate 133 and the right end face of the left longitudinal middle plate 1324 away from O'; and the secondary T-shaped power distribution cavity 12. 21. Chamfer radius at the connection between the front end face of the transverse section and the secondary T-shaped power distribution cavity 1221. Chamfer radius at the left and right ends of the rear surface of the sealing plate 3. Chamfer radius at the connection between the chamfer of the sealing plate 3 and the left and right ends of the front surface of the sealing plate 3. Chamfer radius at the connection between the left chamfer of the sealing plate 3 and the left end face of the sealing plate 3. Chamfer radius at the connection between the right chamfer of the sealing plate 3 and the right end face of the sealing plate 3. Chamfer radius at the connection between the left end face of the transverse middle plate 1321 and the right end face of the left inclined middle plate 1322. Chamfer radius of the inner surface at the connection between the right end face of the transverse middle plate 1321 and the right inclined middle plate 1322. The chamfer radius of the inner surface at the connection between the left end face of the middle plate 1323, the chamfer radius of the inner surface at the connection between the left end face of the left inclined middle plate 1322 and the front end face of the left longitudinal middle plate 1324, and the chamfer radius of the inner surface at the connection between the right end face of the right inclined middle plate 1323 and the front end face of the right longitudinal middle plate 1325 are all equal to r1; the chamfer radius of the outer surface at the connection between the rear end face of the waveguide port 134 and the front end face of the transverse middle plate 1321, and the chamfer radius at both ends of the upper surface of the second groove 1331 are all equal to r2; the front end face of the transverse part of the first-stage T-shaped power divider cavity 1211 The chamfer radii at both ends of the longitudinal section of the first-stage T-shaped power distribution cavity 1211, the chamfer radii at the end of the longitudinal section of the second-stage T-shaped power distribution cavity 1221 closer to the left and right end faces of the transverse section of the second-stage T-shaped power distribution cavity 1221, the chamfer radii at the end of the longitudinal section of the third-stage T-shaped power distribution cavity 1231 closer to the left and right end faces of the transverse section of the third-stage T-shaped power distribution cavity 1231, the chamfer radii at the connection between the left inclined surface and the front face of the third-stage trapezoidal body 1232, and the chamfer radii at the connection between the right inclined surface and the front face of the third-stage trapezoidal body 1232 are the same.All are equal to r3; the chamfer radius at the connection between the left chamfer of the first-stage T-shaped power distribution cavity 1211 and the left end face of the transverse part of the first-stage T-shaped power distribution cavity 1211, the chamfer radius at the connection between the right chamfer of the first-stage T-shaped power distribution cavity 1211 and the right end face of the transverse part of the first-stage T-shaped power distribution cavity 1211, the chamfer radius at the connection between the chamfer of the first-stage T-shaped power distribution cavity 1211 and the two ends of the front surface of the transverse part of the first-stage T-shaped power distribution cavity 1211, the chamfer radius at the two ends of the connection between the rear end face of the first-stage trapezoidal body 1212 and the rear end face of the transverse part of the first-stage T-shaped power distribution cavity 1211, the chamfer radius at the connection between the left chamfer of the second-stage T-shaped power distribution cavity 1221 and the left end face of the transverse part of the second-stage T-shaped power distribution cavity 12 ... right chamfer of the second-stage T-shaped power distribution cavity 1221 and the left chamfer radius at the connection between the left chamfer of the second-stage T-shaped power distribution cavity 1221 and the right chamfer of the second-stage T-shaped power distribution cavity 1221. The chamfer radius at the connection between the angle and the right end face of the transverse section of the secondary T-shaped power distribution cavity 1221; the chamfer radius at the connection between the chamfer angle of the secondary T-shaped power distribution cavity 1221 and the two ends of the front surface of the transverse section of the secondary T-shaped power distribution cavity 1221; the chamfer radius at both ends of the connection between the rear end face of the secondary trapezoid 1222 and the rear end face of the transverse section of the secondary T-shaped power distribution cavity 1221; the chamfer radius at the connection between the left chamfer angle of the tertiary T-shaped power distribution cavity 1231 and the left end face of the transverse section of the tertiary T-shaped power distribution cavity 1231; the chamfer radius at the connection between the right chamfer angle of the tertiary T-shaped power distribution cavity 1231 and the right end face of the transverse section of the tertiary T-shaped power distribution cavity 1231; the chamfer radius at both ends of the connection between the chamfer angle of the tertiary T-shaped power distribution cavity 1231 and the two ends of the front surface of the transverse section of the tertiary T-shaped power distribution cavity 1231; The chamfer radius at the connection point, the chamfer radius at both ends of the connection between the rear end face of the third-level trapezoid 1232 and the rear end face of the transverse part of the third-level T-shaped power distribution cavity 1231, the chamfer radius at the intersection of the rounded corner of the fourth-level T-shaped power distribution cavity 1241 closest to the left longitudinal middle plate 1324 and the left longitudinal middle plate 1324, and the chamfer radius at the intersection of the rounded corner of the fourth-level T-shaped power distribution cavity 1241 closest to the right longitudinal middle plate 1325 and the right longitudinal middle plate 1325 are all equal to r4; the chamfer radius at the connection between the left inclined surface and the front end face of the first-level trapezoid 1212, and the chamfer radius at the connection between the right inclined surface and the front end face of the first-level trapezoid 1212 are all equal to r5; the chamfer radius at the connection between the left inclined surface and the front end face of the second-level trapezoid 1222, and the chamfer radius at the connection between the left inclined surface and the front end face of the second-level trapezoid 1222 are all equal to r5. The chamfer radius at the connection between the right inclined surface and the front end face of trapezoidal body 1222 is the same, both equal to r6; the chamfer radius at both ends of the connection between the front end face of the transverse part of the three-stage T-shaped power distribution cavity 1231 and the rear end face of the longitudinal part of the three-stage T-shaped power distribution cavity 1231, parallel to the left end face of the transverse part of the four-stage T-shaped power distribution cavity 1241 and at a distance of r9 from the left end face of the transverse part of the four-stage T-shaped power distribution cavity 1241, and the chamfer radius at the intersection of the left chamfer of the four-stage T-shaped power distribution cavity 1241, parallel to the right end face of the transverse part of the four-stage T-shaped power distribution cavity 1241 and at a distance of r9 from the right end face of the transverse part of the four-stage T-shaped power distribution cavity 1241, and the chamfer radius at the intersection of the right chamfer of the four-stage T-shaped power distribution cavity 1241, are the same.All are equal to r7; the chamfer radius at the intersection of the plane parallel to the left end face of the transverse part of the fourth-stage T-shaped power distribution cavity 1241 and the plane at a distance of r9 from the left end face of the transverse part of the fourth-stage T-shaped power distribution cavity 1241 with the left end face of the fourth-stage T-shaped power distribution cavity 1241, the chamfer radius at the intersection of the plane parallel to the right end face of the transverse part of the fourth-stage T-shaped power distribution cavity 1241 and the plane at a distance of r9 from the right end face of the transverse part of the fourth-stage T-shaped power distribution cavity 1241 with the right end face of the fourth-stage T-shaped power distribution cavity 1241, and the chamfer radius at both ends of the fourth-stage capsule column 1242 are the same, all equal to r9; the chamfer radius at the right end of the front end face of the longitudinal part of the fourth-stage T-shaped power distribution cavity 1241 closest to the left longitudinal middle plate 1324, and the chamfer radius at the right end of the longitudinal middle plate 1325 closest to the left longitudinal middle plate 1325. The chamfer radius at the left end of the longitudinal front face of the fourth-stage T-shaped power distribution cavity 1241, the chamfer radius at the left end of the longitudinal front face of the second closest fourth-stage T-shaped power distribution cavity 1241 (to the left longitudinal middle plate 1324), and the chamfer radius at the right end of the longitudinal front face of the second closest fourth-stage T-shaped power distribution cavity 1241 (to the right longitudinal middle plate 1325) are all equal to r10; the chamfer radii at the top and bottom of the left rectangular through slot 431, the fifth rectangular plate 425, the sixth rectangular plate 426, the right rectangular through slot 432, the seventh rectangular plate 427, and the eighth rectangular plate 428 are all equal to r12.

[0057] 5. There are N4 four-stage T-type power distribution chambers 1241, and the relationship between them and the number of output ports N is N=N4*2; there are N3 three-stage T-type power distribution chambers 1231, and the relationship between them and the number of four-stage T-type power distribution chambers 1241 is N4=N3*2; there are N2 two-stage T-type power distribution chambers 1221, and the relationship between them and the number of three-stage T-type power distribution chambers 1231 is N3=N2*2; there are N1 one-stage T-type power distribution chambers 1211, and the relationship between them and the number of two-stage T-type power distribution chambers 1221 is N2=N1*2.

[0058] 6. The height of the bottom plate 131 of the outer casing and the distance from the lower surface of the through hole 1341 to the lower surface of the waveguide port 134 are the same, both equal to h1; the height of the top plate 133 of the outer casing and the distance from the upper surface of the through hole 1341 to the upper surface of the waveguide port 134 are the same, both equal to h2; the height of the transverse middle plate 1321, the height of the left inclined middle plate 1322, the height of the right inclined middle plate 1323, the height of the left longitudinal middle plate 1324, the height of the right longitudinal middle plate 1325, the height of the waveguide port 134, and the height of the dielectric window 4 are the same, all equal to h3; the height of the through hole 1341, the height of the power divider filler 11, the depth of the first-stage T-shaped power divider cavity 1211, the height of the first-stage trapezoidal body 1212, the depth of the second-stage T-shaped power divider cavity 1221, the height of the second-stage trapezoidal body 1222, the depth of the third-stage T-shaped power divider cavity 1231, and the height of the third-stage trapezoidal body The height of 1232, the depth of the fourth-stage T-shaped power distribution cavity 1241, the height of the fourth-stage capsule column 1242, and the height of the triangular prism groove 44 are all equal to h4; the depth of the second groove 1331 is equal to the height of the sealing plate 3, and is also equal to h6; the heights of the first rectangular groove 411, the second rectangular groove 412, the third rectangular groove 413, the fourth rectangular groove 414, the first rectangular plate 421, the second rectangular plate 422, the third rectangular plate 423, and the fourth rectangular plate 424 are all equal to h9; the heights of the left rectangular through groove 431, the fifth rectangular plate 425, the sixth rectangular plate 4264, the right rectangular through groove 4324, the seventh rectangular plate 427, and the eighth rectangular plate 428 are all equal to h11.

[0059] 7. The widths of the bottom plate 131, the top plate 133, the power distributor filler 11, the welding cover 2, and the sealing plate 3 are all equal to a3; the widths of the first groove 1311, the second groove 1331, the first rectangular groove 411, the second rectangular groove 412, the third rectangular groove 413, the fourth rectangular groove 414, the first rectangular plate 421, the second rectangular plate 422, the third rectangular plate 423, and the fourth rectangular plate 424 are all equal to a5; the horizontal distance from the left end face of the transverse portion of the first-stage T-shaped power distributor cavity 1211 to the right surface of the left inclined middle plate 1322, and the first-stage T-shaped power distributor cavity 12... The horizontal distance from the right end face of the transverse portion of 11 to the left surface of the right inclined middle plate 1323 is the same, both equal to a6; the distance from the left end of the rear end face of the first-stage trapezoid 1212 to the left end of the transverse portion of the first-stage T-shaped power distribution cavity 1211, and the distance from the right end of the rear end face of the first-stage trapezoid 1212 to the right end of the transverse portion of the first-stage T-shaped power distribution cavity 1211 are the same, both equal to a9; the horizontal distance from the left end face of the longitudinal portion of the first-stage T-shaped power distribution cavity 1211 to the left end face of the transverse portion of the first-stage T-shaped power distribution cavity 1211, and the horizontal distance from the right end face of the longitudinal portion of the first-stage T-shaped power distribution cavity 1211 to the right end face of the transverse portion of the first-stage T-shaped power distribution cavity 1211 are the same, both equal to a10; the transverse portion of the second-stage T-shaped power distribution cavity 1221 closest to the left inclined middle plate 1322... The horizontal distance from the left end face of the secondary T-shaped power distribution cavity 1221 to the right surface of the left inclined middle plate 1322 and the horizontal distance from the right end face of the transverse portion of the secondary T-shaped power distribution cavity 1221 closest to the right inclined middle plate 1323 to the left surface of the right inclined middle plate 1323 are the same, both equal to a14; the horizontal distance from the left end face of the transverse portion of the tertiary T-shaped power distribution cavity 1231 closest to the left inclined middle plate 1322 to the left end face of the left inclined middle plate 1322 and the horizontal distance from the right end face of the transverse portion of the tertiary T-shaped power distribution cavity 1231 closest to the right inclined middle plate 1323 to the right end face of the right inclined middle plate 1323 are the same, both equal to a24; the distance from the left end face of the quaternary capsule column 1242 to the left end face of the quaternary T-shaped power distribution cavity 1241 and the horizontal distance from the right end face of the quaternary capsule column 1242 to the left end face of the quaternary T-shaped power distribution cavity 1241 are the same, both equal to a24; The distance from the right end face of 42 to the right end face of the fourth-stage T-shaped power distribution cavity 1241 is the same, both equal to a32; the length of the bottom plate of the outer shell 131 is the same as the length of the power distribution filler 11, both equal to b1; the length of the left longitudinal middle plate 1324 is the same as the length of the right longitudinal middle plate 1325, both equal to b2; the length of the upper plate of the outer shell 133 is the same as the depth of the through hole 1341, both equal to b3; the length of the longitudinal part of the second-stage T-shaped power distribution cavity 1221 is the same as the length of the longitudinal part of the third-stage T-shaped power distribution cavity 1231, both equal to b7; the length of the welded cover 2 is the same as the length of the sealing plate 3, both equal to b14; the length of the medium window 4, the depth of the left rectangular through groove 431, and the depth of the right rectangular through groove 432 are the same, all equal to b15.The lengths of the fifth rectangular plate 425, the sixth rectangular plate 426, the seventh rectangular plate 427, and the eighth rectangular plate 428 are all equal to b16; the thicknesses of the transverse middle plate 1321, the left inclined middle plate 1322, the right inclined middle plate 1323, the left longitudinal middle plate 1324, the right longitudinal middle plate 1325, the distance from the rear end face of the first groove 1311 to the rear end face of the bottom plate 131 of the outer shell, and the distance from the rear surface of the second groove 1331 to the rear surface of the upper plate 133 of the outer shell are all equal to s1; the distances from the left end face of the first groove 1311 to the left surface of the left longitudinal middle plate 1324, the distance from the right end face of the first groove 1311 to the right surface of the right longitudinal middle plate 1325, the distance from the left end face of the second groove 1331 to the left surface of the left longitudinal middle plate 1324, and the distance from the right end face of the second groove 1331 to the right surface of the right longitudinal middle plate 1325 are all equal to s2; the length of the first groove 1311... The length of the second groove 1331, the width of the left rectangular through groove 431, the width of the right rectangular through groove 432, the width of the fifth rectangular plate 425, the width of the sixth rectangular plate 426, the width of the seventh rectangular plate 427, and the width of the eighth rectangular plate 428 are all equal to s3; the horizontal distance from the left end face of the transverse portion of the fourth-stage T-shaped power distribution cavity 1241 closest to the left longitudinal middle plate 1324 to the right end face of the left longitudinal middle plate 1324, and the horizontal distance from the right end face of the transverse portion of the fourth-stage T-shaped power distribution cavity 1241 closest to the right longitudinal middle plate 1325 to the left end face of the right longitudinal middle plate 1325 are all equal to s4; the depth of the first rectangular groove 411, the depth of the second rectangular groove 412, the depth of the third rectangular groove 413, the depth of the fourth rectangular groove 414, the length of the first rectangular plate 421, the length of the second rectangular plate 422, the length of the third rectangular plate 423, and the length of the fourth rectangular plate 424 are all equal to s5.

[0060] 8. The width a41 and height h24 of the slotted waveguide 9 must meet the TE requirement. 10The mold is transmitted therein, generally satisfying a41 < λ0 / 2, λ0 / 2 < h24 < λ0, where λ0 is the wavelength in free space. The width of the rectangular bottom plate 91 is equal to the width of the rectangular upper plate 93, both equal to the width a41 of the slotted waveguide 9; the height of the rectangular middle plate 92 is equal to the height of the rectangular channel 94, both equal to b26; usually, the height h19 of the rectangular bottom plate 91 and the height (equal to h9) of the rectangular upper plate 93 should be equal and smaller than the height b26 of the rectangular middle plate 92. However, due to the need to open slots on the rectangular upper plate 93, its height slightly increases, so b26 > h9 > h19 > 0; the sum of the height h19 of the rectangular bottom plate 91, the height b26 of the rectangular middle plate 92, and the height (equal to h9) of the rectangular upper plate 93 should be consistent with the height h24 of the slotted waveguide 9, that is, h19 + b26 + h9 = h24; the width a42 of the rectangular middle plate 92 and the width a38 of the rectangular channel 94 satisfy 2*a42 + a38 = a41; in the design, it is based on enabling the microwave TE 10 mode transmission. The electromagnetic simulation software CST StudioSuit is used to simulate and obtain the accurate values of a41, a42, a38, h19, b26, h9, and h24. The length b29 of the slotted waveguide 9 should be related to the number and position of the waveguide slots 95 and should satisfy b29 = (K - 1)*b32 + 2*s23.

[0061] 9, the width a43 of the dielectric cover 8, the height h22 of the dielectric cover 8, the thickness s22 of the front cover 81, the depth s9 of the first annular through groove, the height h20 of the rectangular bottom cover plate 821, the width a44 of the rectangular middle cover plate 822, the height h21 of the rectangular middle cover plate 822, and the height h9 of the rectangular upper cover plate 823 should be such that the slotted waveguide 9 can be completely enclosed in the dielectric cover 8 during design to ensure the sealing of the dielectric cover 8 and minimize the impact on the slotted waveguide 9. Under the conditions of h20 + h21 + h9 = h22 and a43 > a41 > a44, h22 > h21 > h9 > h20, the electromagnetic simulation software CST Studio Suit is used to simulate and obtain the accurate values of a43, a44, h20, h21, h9, and h22. Considering the processing cost, the thickness s22 of the front cover 81 and the depths s9 of the third groove 811, the fourth groove 812, the fifth groove 813, and the sixth groove 814 should not be too small, and the axial distance s4 from the rear cover to the X'-end face of the slotted waveguide 9 should not be too large. Generally, s22 > 5mm, s9 > 3mm, s4 < 2mm. The thickness of the rear cover is the same as the thickness of the front cover 81 and is equal to s22; the depths of the third groove 811, the fourth groove 812, the fifth groove 813, and the sixth groove 814 are the same as the depths of the seventh groove 831, the eighth groove 832, the ninth groove 833, and the tenth groove 834 and are equal to s9. The length of the dielectric cover 8 should satisfy b28 = b30 + 2*(s22 - s9) = b29 + s4 + 2*s22.

[0062] 10. The chamfer radius r12 of the inner surface at the connection between the rectangular bottom cover plate 821 and the two rectangular middle cover plates 822, the chamfer radius r7 of the outer surface at the connection between the rectangular bottom cover plate 821 and the two rectangular middle cover plates 822, the chamfer radius r2 of the inner surface at the connection between the rectangular top cover plate 823 and the two rectangular middle cover plates 822, and the chamfer radius r15 of the outer surface at the connection between the rectangular top cover plate 823 and the two rectangular middle cover plates 822 should all meet the conditions for lossless microwave transmission in order to reduce reflection, and r15>r2>r7>r12. The chamfer radii of the inner surfaces near X at the junction of the third groove 811 and the fourth groove 812, the chamfer radii of the inner surfaces near X at the junction of the third groove 811 and the fifth groove 813, the chamfer radii of the inner surfaces near X' at the junction of the seventh groove 831 and the eighth groove 832, and the chamfer radii of the inner surfaces near X' at the junction of the seventh groove 831 and the ninth groove 833 are the same as the chamfer radii of the inner surfaces at the junction of the rectangular bottom cover plate 821 and the two rectangular middle cover plates 822, all equal to r12; The chamfer radius of the inner surface near X at the connection between the sixth groove 814 and the fourth groove 812, the chamfer radius of the inner surface near X at the connection between the sixth groove 814 and the fifth groove 813, the chamfer radius of the inner surface near X' at the connection between the tenth groove 834 and the eighth groove 832, and the chamfer radius of the inner surface near X' at the connection between the tenth groove 834 and the ninth groove 833 are the same as the chamfer radius of the inner surface at the connection between the rectangular upper cover plate 823 and the two rectangular middle cover plates 822, all equal to r2; the third The chamfer radius of the outer surface of the connection between groove 811 and the fourth groove 812 away from X, the chamfer radius of the outer surface of the connection between the third groove 811 and the fifth groove 813 away from X, the chamfer radius of the outer surface of the connection between the seventh groove 831 and the eighth groove 832 away from X', and the chamfer radius of the outer surface of the connection between the seventh groove 831 and the ninth groove 833 away from X' are the same as the chamfer radius of the outer surface of the connection between the rectangular bottom cover plate 821 and the two rectangular middle cover plates 822, all equal to r7; the chamfer radius of the outer surface of the connection between the sixth groove 814 and the fourth groove 812 away from X, the chamfer radius of the outer surface of the connection between the sixth groove 814 and the fifth groove 813 away from X, the chamfer radius of the outer surface of the connection between the tenth groove 834 and the eighth groove 832 away from X', and the chamfer radius of the outer surface of the connection between the tenth groove 834 and the ninth groove 833 away from X' are the same as the chamfer radius of the outer surface of the connection between the rectangular top cover plate 823 and the two rectangular middle cover plates 822, all equal to r15.

[0063] 11. There are K waveguide slots in total. The normalized equivalent conductance of each slot is... S 1,1The reflection coefficient of the input port of the high-power waveguide slot array antenna 101 with a dielectric cover 8 obtained by electromagnetic simulation software CST Studio Suit when the waveguide slot 95 is in a resonant state; the mathematical relationship between the normalized resonant conductance g of K waveguide slots 95 and the length b34 of the waveguide slot 95 can be obtained by simulation using electromagnetic simulation software CST Studio Suit (after the shape of the waveguide slot is determined, there must be a unique corresponding mathematical relationship between the normalized resonant conductance g of the waveguide slot and the length b34 of the waveguide slot); the waveguide slot 95 is an inclined slot on the narrow side of a rectangular waveguide, and changing the inclination angle of the waveguide slot 95 can change the magnitude of the normalized equivalent conductance and adjust the depth c9 of the slot cut into the wide side to make the slot in a resonant state; the normalized resonant conductance of K waveguide slots 95 and the inclination angle of the waveguide slot 95 The mathematical relationship can be obtained by simulation using electromagnetic simulation software CST Studio Suit (after the shape of the waveguide slot is determined, there must be a unique corresponding mathematical relationship between the normalized resonant conductance of the waveguide slot and the inclination angle of the waveguide slot ); the normalized resonant conductance of K waveguide slots 95 and the mathematical relationship between the depth c9 of the waveguide slot 95 can be obtained by simulation using electromagnetic simulation software CST Studio Suit (after the shape of the waveguide slot is determined, there must be a unique corresponding mathematical relationship between the normalized resonant conductance of the waveguide slot and the depth c9 of the waveguide slot); the axial spacing b32 between adjacent waveguide slots 95 should be equal to , the axial spacing between the waveguide slot 95 closest to the front cover 81 and the X end face of the slotted waveguide 9 should be equal to the axial spacing between the waveguide slot 95 closest to the rear cover and the X' end face of the slotted waveguide 9, both of which are s23 and should be equal to , is the operating wavelength of the slotted waveguide 9.

[0064] 12. There are N6 support columns 10 in total. The support columns 10 are located between the slotted waveguide 9 and the dielectric cover 8. The height h25 and diameter c8 of the support columns 10 are generally >5 mm. The axial spacing b33 between adjacent support columns 10 should satisfy the function of supporting the dielectric cover 8 while reducing the influence on the slotted waveguide 9 during design, and h25 + h24 = h21 should be satisfied. The axial spacing s24 between the support column 10 closest to the rear cover and the rear cover should satisfy (s24 - s4)*2 = s23, s24 < s23 < b33. The number N6 of support columns 10 can be obtained based on the axial spacing b33 between adjacent support columns 10 and the axial spacing s24 between the support column 10 closest to the rear cover and the rear cover, that is, N6 = (b28 - s22 - s24) / b33.

[0065] 13. There are N7 support rods 201. The support rods 201 are located between the rectangular middle plate 92 and the rectangular middle cover plate 822. The width of the support rod 201 is a45, and the height is h23. The longitudinal spacing s20 of the support rods 201 in the same row should meet the function of supporting the dielectric cover 8 while minimizing the impact on the slotted waveguide 9, and satisfy a41+2*a45+2*a44=a43, a43>a41>a44>a45, h22>h21>s20>h9>h20>h23. The longitudinal spacing from the support rod 201 closest to the rectangular bottom plate 91 to the lower surface of the rectangular bottom plate 91 is equal to the longitudinal distance from the support rod 201 closest to the rectangular top plate 93 to the upper surface of the rectangular top plate 93, both being s21. Based on the longitudinal spacing of the support rods 201 in the same column being s20, and the longitudinal spacing s21 from the support rod 201 closest to the rectangular base plate 91 to the lower surface of the rectangular base plate 91, the number of support rods 201, N7, can be calculated as N7 = 2 * ((h24 - 2 * s21) / s20 + 1). The length b31 of the support rod 201 should satisfy b31 = b29 + s4.

[0066] 14. A rectangular through-slot 815 connects the front cover 81 and the slotted waveguide 9. The width of the rectangular through-slot 815 is equal to the width of the rectangular channel 94, both being a38; the height of the rectangular through-slot 815 is equal to the height of the rectangular channel 94, both being b26; the depth of the rectangular through-slot 815 is equal to the thickness of the front cover 81, both being s22; the distance from the lower surface of the rectangular through-slot 815 to the lower surface of the front cover 81 is s6; the distance from the upper surface of the rectangular through-slot 815 to the upper surface of the front cover 81 is s19; the distance from the left surface of the rectangular through-slot 815 to the left surface of the front cover 81 is equal to the distance from the right surface of the rectangular through-slot 815 to the right surface of the front cover 81, both being a46. In the design, s6 = h19 + h20, s19 = h9 + h25 + h9, and a46 = a42 + a44 + a45 are satisfied.

[0067] Through the electromagnetic simulation software CST Studio Suit, under the conditions that N = N4 * 2, N4 = N3 * 2, N3 = N2 * 2, N2 = N1 * 2, N5 = a5 / s7, h1 = h9 + h10, h2 = h8 + h9, h3 = h1 + h2 + h4, a34 = a32 + a32, b1 = b3 + b14 = 2 * d + b5 + b7 + b11 + b10, a1 = a9 + a7 + a9 = a10 + d + a10, a30 = a29 + a25 + a29, a11 = a16 + a18 + a19 = a12 + d + a13, a21 = a22 + d + a23 = a28 + a26 + a29, a31 = c4 + d + c4 = a33 + a32 + a33, a20 = a19 + a15 + a19, a0 = 2 * c1 + a2 = 2 * s1 + a3 = 2 * s1 + 2 * s4 + 2 * a32 + a33 * N4 + a34 * (N4 - 1), and a0 > a3 > a5 > a2 > a1 > a20 > a11 > a10 > a9 > a15 > a30 > a21 > a12 > a31 > a13 > a19 > a4 > a34 > a18 > a6 > a7 > a25 > a16 > a22 > a26 > a23 > a29 > a32 > a28 > a24 > a14 > a33 > a17 > a27 > a8, s5 > s2 > s1 > s6 > s3 > s4 > s7, b1 > b14 > b2 > b10 > b13 > b12 > b3 > b15 > b11 > b6 > b9 > b7 > b4 > b8 > b5 > b16, c1 > c2 > c4 > c3, h3 > h11 > h4 > h1 > h10 > h2 > h8 > h7 > h5 > h6 > h9, r6 > r3 > r11 > r1 > r9 > r2 > r10 > r5 > r7 > r4 > r8 > r12, L1 = c1 * sinθ1, θ1 = 45°, θ2 < θ3 < θ4, setting the transmission efficiency of the power divider to be greater than 99%, the exact values of the parameters N1, N2, N3, N4, N5, L1, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20, a21, a22, a23, a24, a25, a26, a27, a28, a29, a30, a31, a32, a33, a34, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, b14, b15, b16, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11, s1, s2, s3, s4, s5, s6, s7, c1, c2, c3, c4, c1, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, θ1, θ2, θ3, θ4 can be obtained.

[0068] Using the electromagnetic simulation software CST Studio Suite, the following conditions are met: b29=(K-1)*b32+2*s23, b28=b30+2*(s22-s9)=b29+s4+2*s22, b30=b29+2*s9+s4, b31=b29+s4, N6=(b28-s22-s24) / b33, N7=2*((h24-2*s21) / s20+1), 2*a42+a38=a41, a41+2*a45+ 2*a44=a43, a46=a42+a44+a45, h19+b26+h9=s21+s20+s21=h24, h20+h21+h9=s6+b26+s19=h22, h25+h24=h21, (s24-s4)*2=s23, s6=h19+h20, s19=h9+h25+h9, a43>a41>c8>a44>a45>a42, λ0 / 2 <h24<λ0,a41<λ0 / 2,h22> Under the conditions that h21>h24>s20>h9>h20>h23>h19, s22>5mm, s9>3mm, and s23<2mm, and the antenna radiation efficiency is set to be greater than 99%, the precise values ​​of parameters K, N6, N7, a41, a42, a43, a44, a45, a46, b28, b29, b30, b31, b32, b33, b34, h19, h20, h21, h22, h23, h24, h25, s19, s20, s21, s22, s23, s24, c8, and c9 can be obtained.

[0069] Using the electromagnetic simulation software CST Studio Suite, under the following conditions: a38+s17+s17=d, a38+s3+s3=a39, d+s18+s18=a40, a38+s2+s2=a37, b26+s17+s17=s10, b27+s17=b25, s7+s3=h15, s3+a8=s2, b19+s5=b20+b21=b18, a35>a37>a40>a39>a36>a38, h12>h13>h16>h18>h14>h15, b18>b19>b20>b22>b25>b23>b27>b24>b26> Under the conditions of b21>b17, s12>s10>s8>s11>s13>s9>s18>s17, c7>c6>c5, and setting the transmission efficiency of the separator, flange, and bent waveguide to be greater than 99%, the precise values ​​of parameters a35, a36, a37, a38, a39, a40, b17, b18, b20, b21, b22, b23, b24, b25, b26, b27, h12, h13, h14, h15, h16, h18, s8, s9, s10, s11, s12, s13, s17, s18, c5, c6, c7, and r14 can be obtained. Compared with the prior art, the present invention can achieve the following technical effects:

[0070] 1. The vacuum window sealed power divider of this invention adopts an H-plane T-type junction power divider structure. The input port of the subsequent power divider structure and the output port of the previous power divider structure are on the same plane, which effectively improves space utilization and enables a tight array arrangement. In the vacuum window sealed power divider of this invention, the sealing plate and the medium window are made of 30% glass fiber PEEK material, whose coefficient of thermal expansion is similar to that of metal. At low temperatures of -50°C and high temperatures of 50°C, it will not deform due to the inconsistency of the coefficient of thermal expansion, thus having better airtightness. The metal rectangular plate filled in the medium window of the vacuum window sealed power divider of this invention ensures good electrical contact while maintaining airtightness. The main body of the power divider of this invention is a metal structure, and there are no discontinuous structures inside the cavity, which can effectively suppress the generation of electric field enhancement effect and improve power capacity. The rectangular grooves on the upper and lower parts of the rear end of the power divider body can cancel reflection, and the continuous triangular prism grooves on the medium window can further improve power capacity.

[0071] 2. In the dielectric-coated rectangular waveguide slot antenna of the present invention, the width of the slotted waveguide is less than one waveguide wavelength, effectively suppressing the generation of slot array grating lobes; in the dielectric-coated rectangular waveguide slot antenna of the present invention, all slotted waveguides are of metal structure, ensuring the antenna aperture efficiency, overcoming the RF breakdown problem that limits the antenna power capacity, and achieving high power capacity, high aperture efficiency, and high radiation efficiency; in the dielectric-coated rectangular waveguide slot antenna of the present invention, the dielectric caisson isolates the slotted waveguide from the outside environment and is filled with sulfur hexachloride gas, achieving the function of simultaneously withstanding low temperatures of -50°C and high temperatures of 50°C; the present invention is an array of multiple dielectric-coated rectangular waveguide slot antennas, with a compact structure and easy modularization.

[0072] 3. The separator waveguide, flange, and bent waveguide of the present invention together realize microwave diversion in the vacuum window sealed power divider, enabling microwaves to be input into the dielectric-coated rectangular waveguide slot antenna; wherein the separator waveguide separates the multiple microwaves received from the vacuum window sealed power divider and inputs them into the bent waveguide through the flange; the bent waveguide will again change the transmission direction of the input microwaves and input the microwaves into the dielectric-coated rectangular waveguide slot antenna. Attached Figure Description

[0073] Figure 1 This is a schematic diagram of the overall structure of the high-power microwave waveguide slot antenna array of the present invention.

[0074] Figure 2 yes Figure 1 Side view.

[0075] Figure 3 yes Figure 1 A schematic diagram of the overall structure of the medium vacuum window sealed power divider.

[0076] Figure 4 yes Figure 3 A schematic diagram of the structure of the medium power splitter body, welding cover, and medium window.

[0077] Figure 5 yes Figure 3 A schematic diagram of the overall structure of the power divider body and the medium window when the welding cover is not in place.

[0078] Figure 6 yes Figure 3 Top view and enlarged view of the main body of the power splitter; Figure 6 (a) is Figure 3 Top view of the main body 1 of the medium power splitter; Figure 6 (b) is Figure 6 (a) A magnified view of a portion at point A; Figure 6 (c) is Figure 6 (a) A magnified view at point B; Figure 6 (d) is Figure 6(a) A magnified view at point C; Figure 6 (e) is Figure 6 (a) A magnified view at point D.

[0079] Figure 7 yes Figure 3 A vertical sectional view along the OO' plane.

[0080] Figure 8 yes Figure 3 A vertical sectional view along the plane QQ'.

[0081] Figure 9 yes Figure 3 A schematic diagram of the overall structure of the medium window and a magnified view of a portion thereof; Figure 9 (a) is Figure 3 A schematic diagram of the overall structure of the medium window; Figure 9 (b) is Figure 9 (a) A magnified view at point E; Figure 9 (c) is Figure 9 (a) A magnified view at point F.

[0082] Figure 10 yes Figure 9 Horizontal section view and enlarged view along the RR' plane; Figure 10 (a) is Figure 9 A horizontal sectional view along the RR' plane; Figure 10 (b) is Figure 10 (a) A magnified view at point G; Figure 10 (c) is Figure 10 (a) A magnified view at point H.

[0083] Figure 11 yes Figure 3 The back view of the media window.

[0084] Figure 12 yes Figure 1 A schematic diagram of the overall structure of the middle-segment waveguide 5, flange 6, and curved waveguide 7, and the rectangular waveguide slot antenna 101 with dielectric cover.

[0085] Figure 13 yes Figure 12 A horizontal cross-sectional view of the middle-segmented waveguide 5 along the SS' plane.

[0086] Figure 14 yes Figure 12 A schematic diagram of the overall structure of the partition plate 52 in the partitioned waveguide 5.

[0087] Figure 15 yes Figure 12 A vertical sectional view along the TT' plane.

[0088] Figure 16 yes Figure 12 A vertical sectional view along the UU' plane.

[0089] Figure 17 yes Figure 1 Overall structural schematic diagram of flange 6, flange base plate 61, and flange middle plate 62; Figure 17 (a) is Figure 1 Overall structural schematic diagram of flange 6; Figure 17 (b) is Figure 17 (a) Schematic diagram of the overall structure of the flange base plate 61; Figure 17 (c) is Figure 17 (a) Schematic diagram of the overall structure of the middle flange plate 62.

[0090] Figure 18 yes Figure 1 A schematic diagram of the overall structure of the curved waveguide 7, including its left and bottom views; Figure 18 (a) is Figure 1 A schematic diagram of the overall structure of the curved waveguide 7; Figure 18 (b) is Figure 1 Left view of the curved waveguide 7; Figure 18 (c) is Figure 1 Bottom view of the curved waveguide 7.

[0091] Figure 19 This is a schematic diagram of the overall structure of the rectangular waveguide slot antenna with dielectric cover of the present invention.

[0092] Figure 20 This is a schematic diagram of the structure of the rectangular waveguide slot antenna with dielectric cover of the present invention after being horizontally cut along the II' plane.

[0093] Figure 21 yes Figure 19 A sectional view along the vertical section of plane JJ'.

[0094] Figure 22 yes Figure 19 A horizontal section view and a partial enlarged view along plane II'; Figure 22 (a) is Figure 19 A horizontal sectional view along plane II'; Figure 22 (b) is Figure 22 (a) A magnified view at point K1; Figure 22 (c) is Figure 22 (a) A magnified view at K2.

[0095] Figure 23 These are a side view and a partial enlarged view of the cross-section of the rectangular waveguide slot antenna with dielectric cover of the present invention after horizontal cutting along the MM' plane; Figure 23(a) is a horizontal cross-sectional view of the present invention along the MM' plane; Figure 23 (b) is Figure 23 (a) A magnified view at point K3; Figure 23 (c) is Figure 23 (a) A magnified view at K4.

[0096] Figure 24 This is a front view of the microwave input end face of the rectangular waveguide slot antenna with dielectric cover of the present invention.

[0097] Figure 25 This is a front view of the microwave output end face of the rectangular waveguide slot antenna with dielectric cover of the present invention.

[0098] Figure 26 The figure shows the simulation results of the electric field distribution characteristics in Example 1 when the input microwave power is 0.5W at the 4.3GHz operating frequency.

[0099] Figure 27 The results show the electric field distribution characteristics of the rectangular waveguide slot array antenna in Example 1 at an input microwave power of 0.5W, operating at a frequency of 4.3GHz.

[0100] Figure 28 This is the two-dimensional radiation pattern of the rectangular waveguide slot array antenna in Example 1 at a working frequency of 4.3 GHz. Detailed Implementation

[0101] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples.

[0102] Figure 1 This is a schematic diagram of the overall structure of the high-power microwave waveguide slot antenna array of the present invention; as shown. Figure 1 As shown, this invention includes a power divider and N rectangular waveguide slot antennas. The power divider is a vacuum-window sealed power divider 100, and the rectangular waveguide slot antennas are rectangular waveguide slot antennas 101 with dielectric covers. The vacuum-window sealed power divider 100 and the N rectangular waveguide slot antennas 101 with dielectric covers are connected by a separating waveguide 5, N sets of flanges 6, and N bent waveguides 7. The end of this invention closer to the microwave source is defined as the input end, and the end farther from the microwave source is defined as the output end. The vacuum-window sealed power divider 100 has an input port connected to an external microwave source. The vacuum-window sealed power divider 100 divides the microwaves received from the microwave source into N groups of microwaves, which are then input into the separating waveguide 5. The separating waveguide 5 transmits these N groups of microwaves through the N sets of flanges 6 and the bent waveguides 7, respectively, to the N rectangular waveguide slot antennas 101 with dielectric covers. The N rectangular waveguide slot antennas 101 with dielectric covers radiate the microwaves. N is a positive integer, equal to the number of power units to be divided, and is generally an even number (for example, if the power divider needs to divide 1 unit into 16 units, N equals 16; if the power divider needs to divide 1 unit into 32 units, N equals 32).

[0103] Figure 3 yes Figure 1 A schematic diagram of the overall structure of the medium vacuum window sealed power divider 100; as shown below. Figure 3 As shown, the vacuum window sealed power divider 100 consists of a power divider body 1 and a welded cover 2 (such as...). Figure 4 The power divider consists of a sealing plate 3 and a dielectric window 4. The main body 1 of the power divider has an input port connected to an external microwave source to receive the microwaves to be distributed from the microwave source. The main body 1 of the power divider has N output ports, namely the first output port, the second output port, ..., the nth output port, ..., the Nth output port, which are connected to the dielectric window 4. The dielectric window 4 is connected to the separating waveguide 5. For ease of description, a central axis OO' is drawn on the upper surface of the sealing plate 3 along the input-to-output direction. Point O is on the input end face of the vacuum window sealed power divider 100, and point O' is on the medium window 4. The vacuum window sealed power divider 100 is symmetrical about the central axis OO'. A horizontal axis PP' is drawn on the upper surface of the sealing plate 3 through point O. PP' is perpendicular to OO', with P being the left end and P' being the right end. The end closer to the central axis OO' in the vertical direction is designated as the upper end, and the end farther from the central axis OO' is designated as the lower end. Along the central axis OO', the end closer to point O is designated as the front end, and the end closer to point O' is designated as the rear end. The power divider body 1 has one input port at point O and N output ports connected to the medium window 4 near point O'. The power divider body 1 is a cuboid with chamfered ends on the front surface and is made of metal. The input port of the power divider body 1 is connected to a microwave source to receive microwaves input from the microwave source. The welding cover 2 is a cuboid plate with chamfered ends on its front surface. The chamfered ends on its front surface match the chamfered ends on the front surface of the power divider body 1. It is made of metal and seals the upper surface of the power divider body 1, ensuring that the input microwaves propagate in the power divider body 1 and reducing microwave leakage. The sealing plate 3 has the same shape as the welding cover 2, also a cuboid plate with chamfered ends on its front surface. It is made of 30% glass fiber PEEK material and is located on the upper surface of the welding cover 2. Its function is to further seal the upper surface of the power divider body 1 on the basis of the sealing of the upper surface of the power divider body 1 by the welding cover 2, thereby further reducing microwave leakage in the power divider body 1. The dielectric window 4 is connected to the N output ports of the power divider body 1. Its function is to transmit the N sets of microwaves received from the N output ports of the power divider body 1 to the separating waveguide 5 during power division, and to ensure airtightness at high and low temperatures, thereby ensuring the normal use of the present invention at high and low temperatures.

[0104] Figure 2 yes Figure 1 Side view, such as Figure 2As shown, the rear surface of the dielectric window 4 of the vacuum window sealed power divider 100 is welded to the front surface of the partition waveguide 5; N flanges 6 are welded to the upper surface of the partition waveguide 5; the lower surfaces of the N flanges 6 are respectively welded to the upper surface of the partition waveguide 5; the flange upper plates 63 of the N flanges 6 are respectively connected to the N curved waveguides 7 (vertical waveguides 71 of the curved waveguides 7) in sequence; the N curved waveguides 7 (upper ports of the curved waveguides 7) are respectively connected to the N rectangular waveguide slot antennas 101 with dielectric covers (front covers 81 of the dielectric cover 8 of the rectangular waveguide slot antenna 101 with dielectric covers) in sequence.

[0105] Figure 4 yes Figure 3 A schematic diagram of the overall structure of the medium power splitter body 1, welding cover 2, and dielectric window 4; as shown. Figure 4 As shown, the welding cover 2 is welded to the upper surface of the power divider body 1, combined with... Figure 3 The sealing plate 3 is fixed to the upper surface of the welding cover 2 with screws.

[0106] Figure 5 yes Figure 3 A schematic diagram of the overall structure of the power divider body 1 and the medium window 4 when the welding cover 2 is not in place; Figure 6 yes Figure 3 Top view and enlarged partial view of the main body 1 of the medium-power splitter. (See attached image.) Figure 5 As shown, combined with Figure 6 The power divider body 1 is made of metal and consists of a power divider filler 11 and a main body shell 13. Figure 7 As shown, combined with Figure 5 The main body shell 13 consists of four parts: a bottom shell plate 131, a middle shell plate 132, a top shell plate 133, and a waveguide port 134. The power divider filler 11 is located between the welding cover 2 and the bottom shell plate 131 of the main body shell 13, and its outer side wall is wrapped by the main body shell 13. Power divider channels 12 are carved in the power divider filler 11. The power divider channels 12 are divided into primary power divider channels 121, secondary power divider channels 122, tertiary power divider channels 123, and quaternary power divider channels 124 according to their functions. The primary power divider channels 121 and 2nd power divider channels 122 are connected, and the tertiary power divider channels 123 and quaternary power divider channels 124 are arranged sequentially from O to O' and are interconnected.

[0107] Figure 7 yes Figure 3 A vertical sectional view along the OO' plane. Figure 7 As shown, combined with Figure 5 The upper shell plate 133 is closest to OO', the upper surface of the middle shell plate 132 is welded to the lower surface of the upper shell plate 133, the bottom shell plate 131 is furthest from OO', the upper surface of the bottom shell plate 131 is welded to the lower surface of the middle shell plate 132, and the rear surface of the waveguide port 134 is welded to the front surface of the middle shell plate 132. Figure 6 (a) is Figure 3 A top view of the main body 1 of the power splitter, as shown below. Figure 6 As shown in (a), combined with Figure 5 The outer casing base plate 131 is a cuboid plate with a width of a3, a length of b1, and a height of h1 (see...). Figure 7 The outer casing base plate 131 has an axisymmetric structure. The left and right ends of the front surface of the outer casing base plate 131 are chamfered, and the chamfer angle is θ1 (see...). Figure 6 (a)), the chamfer size is c1 (see Figure 6 (a) The chamfered surface of the base plate 131 (i.e., the inclined chamfered surface formed by the chamfer) is rounded at the left and right ends of the front surface of the base plate 131, with a chamfer radius of r1; the chamfered surface at the left end of the base plate 131 is rounded at the left end of the base plate 131, with a chamfer radius of r1; the chamfered surface at the right end of the base plate 131 is rounded at the right end of the base plate 131, with a chamfer radius of r1.

[0108] like Figure 5 As shown, combined with Figure 6 (a) and Figure 7 The outer shell middle plate 132 is composed of a transverse middle plate 1321, a left-inclined middle plate 1322 and a right-inclined middle plate 1323 symmetrical about the OO' axis, and a left-longitudinal middle plate 1324 and a right-longitudinal middle plate 1325 symmetrical about the OO' axis. The transverse middle plate 1321, the left-inclined middle plate 1322, the right-inclined middle plate 1323, the left-longitudinal middle plate 1324, and the right-longitudinal middle plate 1325 are all cuboid plates with a height of h3 (see...). Figure 7 The thickness is s1; for example Figure 5 As shown, the lower rear surface of the transverse middle plate 1321 is welded to the front surface of the bottom plate 131 of the outer casing. The width of the transverse middle plate 1321 is a2 (see...). Figure 6 (a)); The lengths of both the left-tilted middle plate 1322 and the right-tilted middle plate 1323 are L1 (see Figure 6 (a) The lower right surface of the left longitudinal middle plate 1324 is welded to the left surface of the outer casing bottom plate 131, and the lower left surface of the right longitudinal middle plate 1325 is welded to the right surface of the outer casing bottom plate 131. The lengths of both the left longitudinal middle plate 1324 and the right longitudinal middle plate 1325 are b2 (see Figure 6 (a)); The left end face of the transverse middle plate 1321 is welded to the right end face of the left inclined middle plate 1322, and the right end face of the transverse middle plate 1321 is welded to the left end face of the right inclined middle plate 1323. The inner surface of the connection is rounded, and the chamfer radius is equal to r1 (see Figure 6(a) The left end face of the left inclined middle plate 1322 is welded to the front end face of the left longitudinal middle plate 1324, and the inner surface of the connection is rounded with a chamfer radius equal to r1; the right end face of the right inclined middle plate 1323 is welded to the front end face of the right longitudinal middle plate 1325, and the inner surface of the connection is chamfered with a chamfer radius equal to r1. Figure 5 As shown, combined with Figure 6 (a) The upper plate 133 of the outer shell is a cuboid plate with a width of a3, a length of b3, and a height of h2 (see Figure 7 The left end face of the upper outer shell plate 133 is welded to the right end face of the left longitudinal middle plate 1324, and the joint away from O' is rounded with a chamfer radius equal to r1. Figure 5 As shown, combined with Figure 6 (a) and Figure 7 Waveguide port 134 is symmetrical about the OO' axis. The rear end face of waveguide port 134 is welded to the front end face of the transverse middle plate 1321. The outer surface of the weld is rounded with a chamfer radius of r2 (see...). Figure 6 (a)); Waveguide port 134 is a cuboid plate with a width of a4, a length of b4, and a height equal to h3 (see Figure 7 Waveguide port 134 and transverse middle plate 1321 have through holes 1341 along the OO' direction (as the input port of the present invention during power distribution). The width of the through hole 1341 is d, the depth is equal to b3, and the height is h4 (see...). Figure 7 The distance from the lower surface of the through-hole 1341 to the lower surface of the waveguide port 134 is equal to h1 (see...). Figure 7 The distance between the upper surface of the through hole 1341 and the upper surface of the waveguide port 134 is equal to h2 (see...). Figure 7 ).

[0109] Figure 8 yes Figure 3 A vertical sectional view along the plane QQ'. QQ' is parallel to PP', and the horizontal distance from QQ' to the rear surface of the upper shell plate 133 is s5 (see...). Figure 7 ).like Figure 8 As shown, combined with Figure 7 The bottom plate 131 of the outer casing has a first groove 1311 cut vertically downward from its upper surface, with a depth of h5; the first groove 1311 is a cuboid cavity with a width of a5 and a length of s3 (see...). Figure 7 The lower surface of the first groove 1311 has rounded corners at both ends, with a chamfer radius of r11; the distance from the rear end face of the first groove 1311 to the rear end face of the bottom plate 131 of the outer casing is equal to s1 (see...). Figure 7The first groove 1311 is symmetrical about the OO' axis. The distance from the left end face of the first groove 1311 to the left surface of the left longitudinal middle plate 1324 is s2, and the distance from the right end face of the first groove 1311 to the right surface of the right longitudinal middle plate 1325 is also s2. The upper plate 133 of the outer shell has a second groove 1331 cut vertically upward from the lower surface, with a depth of h6 (see...). Figure 7 The second groove 1331 is a rectangular cavity with a width of a5 and a length of s3 (see...). Figure 7 The upper surface of the second groove 1331 has rounded corners at both ends, with a chamfer radius equal to r2; the distance from the rear surface of the second groove 1331 to the rear surface of the upper plate 133 of the outer shell is equal to s1 (see...). Figure 7 The second groove 1331 is symmetrical about the OO' axis. The distance from the left end face of the second groove 1331 to the left surface of the left longitudinal middle plate 1324 is equal to s2, and the distance from the right end face of the second groove 1331 to the right surface of the right longitudinal middle plate 1325 is also equal to s2. Figure 5 As shown, combined with Figure 6 (a) The power divider filler 11 is a cuboid plate made of metallic material, and the width of the power divider filler 11 is a3 (see Figure 6 (a)), with a length of b1 (see Figure 6 (a)), with a height of h4 (see Figure 7 The power divider filler 11 is an axisymmetric structure. The two ends of the front surface of the power divider filler 11 are chamfered, with a chamfer angle equal to θ1 (see [reference]). Figure 6 (a)), the chamfer radius is equal to c1 (see Figure 6 (a) The lower surface of the power distributor 11 is welded to the upper surface of the bottom plate 131 of the outer shell; the front surface of the power distributor 11 is welded to the rear surface of the transverse middle plate 1321; the left chamfered surface of the front surface of the power distributor 11 is welded to the right surface of the left inclined middle plate 1322; the right chamfered surface of the front surface of the power distributor 11 is welded to the left surface of the right inclined middle plate 1323; the left end face of the power distributor 11 is welded to the right surface of the left longitudinal middle plate 1324; and the right end face of the power distributor 11 is welded to the left surface of the right longitudinal middle plate 1325. The rear end face of the upper plate 133 of the outer shell is flush with the rear end face of the power distributor 11, and the lower surface of the upper plate 133 of the outer shell is welded to the upper surface of the power distributor 11. Above; the front end face of the welding cover 2 is flush with the front end face of the power distributor 11, and the lower surface of the welding cover 2 is welded to the upper surface of the power distributor 11. Except for possible differences in height, the lower surface of the power distributor 11 has the same shape as the upper surface of the outer shell bottom plate 131, and the lower surface of the power distributor 11 is welded to the upper surface of the outer shell bottom plate 131. Therefore, the lower surface of the power distributor 11 is wrapped by the outer shell bottom plate 131, and the power distributor 11 is surrounded by the transverse middle plate 1321, the left inclined middle plate 1322, the right inclined middle plate 1323, the left longitudinal middle plate 1324, and the right longitudinal middle plate 1325. The upper surface of the power distributor 11 is wrapped by the outer shell top plate 133 and the welding cover 2.

[0110] Figure 6 (b) is Figure 6 (a) A magnified view of a portion at point A, such as Figure 6 As shown in (b), combined with Figure 5 The power divider filler 11 contains a primary power divider channel 121, a secondary power divider channel 122, a tertiary power divider channel 123, and a quaternary power divider channel 124. The primary power divider channel 121 has an axisymmetric structure, consisting of N1 primary T-shaped power divider cavities 1211 and N1 primary trapezoidal bodies 1212. The primary trapezoidal bodies 1212 are made of metal, and each primary T-shaped power divider cavity 1211 contains one primary trapezoidal body 1212. The primary trapezoidal body 1212 is located within the power divider channel 12 carved in the power divider filler 11. The lower surface of the primary trapezoidal body 1212 is welded to the upper surface of the outer casing base plate 131. The welding surface is... The hollow portion of the bottom surface of the power distribution filler 11 has its upper surface of the first-stage trapezoidal body 1212 welded to the lower surface of the welding cover 2. The long side surface, i.e., the rear end surface, of the first-stage trapezoidal body 1212 is welded to the rear end surface of the transverse portion of the first-stage T-shaped power distribution cavity 1211. The first-stage T-shaped power distribution cavity 1211 is formed by the perpendicular intersection of a transverse rectangular cavity parallel to the OO' axis and a longitudinal rectangular cavity parallel to the PP' axis, i.e., T-shaped. The width of the transverse portion of the first-stage T-shaped power distribution cavity 1211 is a1 (see...). Figure 6(b) The length is equal to d, the depth is equal to h4, the width of the longitudinal part of the first-stage T-shaped power distribution cavity 1211 is equal to d, the length is b5, and the depth is equal to h4; the left and right ends of the front surface of the transverse part of the first-stage T-shaped power distribution cavity 1211 are chamfered, the chamfer angle is equal to θ1, and the chamfer size is c2; the connection between the chamfer of the first-stage T-shaped power distribution cavity 1211 and the left end face of the transverse part of the first-stage T-shaped power distribution cavity 1211 is rounded, and the chamfer radius is r4. The corner at the connection between the angle and the right end face of the transverse portion of the first-stage T-shaped power distribution cavity 1211 is rounded, with a chamfer radius equal to r4. The chamfer at the connection between the chamfer of the first-stage T-shaped power distribution cavity 1211 and the two ends of the front surface of the transverse portion of the first-stage T-shaped power distribution cavity 1211 is rounded, with a chamfer radius equal to r4. The horizontal distance from the left end face of the longitudinal portion of the first-stage T-shaped power distribution cavity 1211 to the left end face of the transverse portion of the first-stage T-shaped power distribution cavity 1211 is a10. The horizontal distance from the right end face of the longitudinal portion of the first-stage T-shaped power distribution cavity 1211 to the first-stage T-shaped power distribution cavity 1211 is a10. The horizontal distance from the right end face of the transverse section of power distribution cavity 1211 is equal to a10; the front end face of the transverse section of the first-stage T-shaped power distribution cavity 1211 and the rear end face of the longitudinal section of the first-stage T-shaped power distribution cavity 1211 are rounded at both ends at the connection point, with a chamfer radius of r3; the horizontal distance from the left end face of the transverse section of the first-stage T-shaped power distribution cavity 1211 to the right surface of the left inclined middle plate 1322 is a6; the horizontal distance from the right end face of the transverse section of the first-stage T-shaped power distribution cavity 1211 to the left surface of the right inclined middle plate 1323 is a6. The length of the trapezoidal body is a6; each primary T-shaped power distribution cavity 1211 contains a primary trapezoidal body 1212, which is an isosceles trapezoid. The ends of the long side face (i.e., the rear end face) of the primary trapezoidal body 1212 are rounded at the connection with the transverse part of the primary T-shaped power distribution cavity 1211, with a rounded radius of r4. The length of the long side of the trapezoidal surface of the primary trapezoidal body 1212 is a7, the length of the short side is a8, the height is b6, and the height of the primary trapezoidal body 1212 is h4 (see...). Figure 7 The acute interior angle is θ2; the left slope of the first-stage trapezoid 1212 is rounded at the connection with the front end face, with a chamfer radius of r5; the right slope of the first-stage trapezoid 1212 is rounded at the connection with the front end face, with a chamfer radius equal to r5; the distance from the left end of the rear end face of the first-stage trapezoid 1212 to the left end of the transverse part of the first-stage T-shaped power distribution cavity 1211 is a9; the distance from the right end of the rear end face of the first-stage trapezoid 1212 to the right end of the transverse part of the first-stage T-shaped power distribution cavity 1211 is equal to a9.

[0111] Figure 6 (c) is Figure 6 (a) A magnified view of a portion at point B, as shown below. Figure 6 As shown in (c), combined with Figure 5The secondary power distribution channel 122 has an axisymmetric structure. It consists of N2 secondary T-shaped power distribution cavities 1221 and N2 secondary trapezoidal bodies 1222. The trapezoidal bodies 1222 are made of metal. Each secondary T-shaped power distribution cavity 1221 contains one trapezoidal body 1222. The trapezoidal body 1222 is located within the power distribution channel 12 carved out by the power distribution filler 11. The lower surface of the trapezoidal body 1222 is welded to the upper surface of the outer shell bottom plate 131. The welding surface is the hollow part of the lower bottom surface of the power distribution filler 11. The upper surface of the trapezoidal body 1222 is welded to the lower surface of the welding cover 2. The long side surface, i.e., the rear end surface, of the trapezoidal body 1222 is welded to the rear end surface of the transverse portion of the secondary T-shaped power distribution cavity 1221. The secondary T-shaped power distribution cavity 1221 is formed by the perpendicular intersection of a rectangular cavity in the transverse direction parallel to the OO' axis and a rectangular cavity in the longitudinal direction parallel to the PP' axis, i.e., T-shaped. The transverse portion of the secondary T-shaped power distribution cavity 1221 has a width of a11, a length of d, and a depth of h4. The longitudinal portion of the secondary T-shaped power distribution cavity 1221 has a width of d, a length of b7, and a depth of h4. The transverse portion of the secondary T-shaped power distribution cavity 1221 has chamfered edges at both ends of its front face, with a chamfer angle of θ1 and a chamfer dimension of c2. The left chamfer of the secondary T-shaped power distribution cavity 1221 is rounded at the connection with the left end face of its transverse portion, with a chamfer radius of r4. The right chamfer of the secondary T-shaped power distribution cavity 1221 is rounded at the connection with the left end face of its transverse portion. The right end face of the transverse section of 221 is rounded with a chamfer radius of r4. The chamfer of the secondary T-shaped power distribution cavity 1221 is rounded at the connection between the two ends of the front surface of the transverse section of the secondary T-shaped power distribution cavity 1221 and the chamfer radius of r4. The horizontal distance from the left end face of the longitudinal section of the secondary T-shaped power distribution cavity 1221 closest to the left inclined middle plate 1322 to the left end face of the transverse section of the secondary T-shaped power distribution cavity 1221 is a12. The horizontal distance from the right end face of the longitudinal section of the secondary T-shaped power distribution cavity 1221 to the right end face of the transverse section of the secondary T-shaped power distribution cavity 1221 is a13. The front end face of the longitudinal section of the secondary T-shaped power distribution cavity 1221 is rounded at the end closer to the left and right end faces of the transverse section of the secondary T-shaped power distribution cavity 1221, with a chamfer radius of r3. The front end face of the transverse portion of the first-stage T-shaped power distribution cavity 1221 and the rear end face of the longitudinal portion of the second-stage T-shaped power distribution cavity 1221 are rounded at both ends at the connection point, with a chamfer radius equal to r1. The horizontal distance from the left end face of the transverse portion of the second-stage T-shaped power distribution cavity 1221 closest to the left inclined middle plate 1322 to the right surface of the left inclined middle plate 1322 is a14, and the horizontal distance from the right end face of the transverse portion of the second-stage T-shaped power distribution cavity 1221 closest to the right inclined middle plate 1323 to the left surface of the right inclined middle plate 1323 is also a14. Two adjacent second-stage T-shaped power distribution cavities 1221 are arranged axially symmetrically, and the horizontal distance between the right end face of the transverse portion of the second-stage T-shaped power distribution cavity 1221 and the left end face of the transverse portion of the adjacent second-stage T-shaped power distribution cavity 1221 on the right is a15.Each secondary T-shaped power distribution cavity 1221 contains a secondary trapezoidal body 1222. The long side surface, i.e., the rear end face, of the secondary trapezoidal body 1222 is welded tightly to the rear end face of the transverse portion of the secondary T-shaped power distribution cavity 1221. The two ends of the connection are rounded with a chamfer radius of r4. The secondary trapezoidal body 1222 is an isosceles trapezoidal body. The length of the long side of the isosceles trapezoidal surface of the secondary trapezoidal body 1222 is a16, the length of the short side of the isosceles trapezoidal surface is a17, the height of the isosceles trapezoidal surface is b8, and the height of the secondary trapezoidal body 1222 is h4 (see below). Figure 7 The acute interior angle is θ3; the left inclined surface of the second-order trapezoid 1222 is rounded at the connection with the front end face with a radius of r6, and the right inclined surface of the second-order trapezoid 1222 is rounded at the connection with the front end face with a radius of r6; the distance from the left end of the rear end face of the second-order trapezoid 1222 closest to the left inclined middle plate 1322 to the left end face of the transverse part of the second-order T-shaped power distribution cavity 1221 is a18, and the distance from the right end of the rear end face of the second-order trapezoid 1222 closest to the left inclined middle plate 1322 to the right end face of the transverse part of the second-order T-shaped power distribution cavity 1221 is a19; two adjacent second-order trapezoids 1222 are arranged axially symmetrically, and the horizontal distance between the right end of the rear end face of the second-order trapezoid 1222 and the left end of the rear end face of the adjacent second-order trapezoid 1222 is a20.

[0112] Figure 6 (d) is Figure 6 (a) A magnified view of a portion at point C, as shown below. Figure 6 As shown in (d), combined with Figure 5The three-stage power distribution channel 123 has an axisymmetric structure. It consists of N3 three-stage T-shaped power distribution cavities 1231 and N3 three-stage trapezoidal bodies 1232. The trapezoidal bodies 1232 are made of metal. Each three-stage T-shaped power distribution cavity 1231 contains one trapezoidal body 1232. The trapezoidal body 1232 is located within the power distribution channel 12 carved out by the power distribution filler 11. The lower surface of the trapezoidal body 1232 is welded to the upper surface of the outer shell bottom plate 131. The welding surface is the hollow part of the lower bottom surface of the power distribution filler 11. The upper surface of the trapezoidal body 1232 is welded to the lower surface of the welding cover 2. The long side, i.e., the rear end face, of the trapezoidal body 1232 is welded to the rear end face of the transverse portion of the three-stage T-shaped power distribution cavity 1231. Cavity 1231 is formed by the perpendicular intersection of a rectangular cavity in the transverse direction parallel to the OO' axis and a rectangular cavity in the longitudinal direction parallel to the PP' axis, i.e., T-shaped. The width of the transverse portion of the three-stage T-shaped power distribution cavity 1231 is a21, the length is equal to d, and the depth is equal to h4. The width of the longitudinal portion of the three-stage T-shaped power distribution cavity 1231 is equal to d, the length is equal to b7, and the depth is equal to h4. The front end face of the transverse portion of the three-stage T-shaped power distribution cavity 1231 is chamfered at both ends, with a chamfer angle of θ1 and a chamfer dimension of c3. The left chamfer of the three-stage T-shaped power distribution cavity 1231 is rounded at the connection with the left end face of the transverse portion, with a chamfer radius of r4. The right chamfer of the three-stage T-shaped power distribution cavity 1231 is rounded at the connection with the transverse portion of the three-stage T-shaped power distribution cavity 1231. The right end face of the three-stage T-shaped power distribution cavity 1231 is rounded at the connection point with the front surface of its transverse section, with a chamfer radius of r4. The horizontal distance from the left end face of the longitudinal section of the three-stage T-shaped power distribution cavity 1231 closest to the left inclined middle plate 1322 to the left end face of its transverse section is a22. The horizontal distance from the right end face of the longitudinal section of the three-stage T-shaped power distribution cavity 1231 closest to the left inclined middle plate 1322 to the right end face of its transverse section is a23. The front end face of the longitudinal section of the three-stage T-shaped power distribution cavity 1231 is rounded at the end closer to the left or right end faces of its transverse section, with a chamfer radius of r4. 3; The front end face of the transverse part of the three-stage T-shaped power distribution cavity 1231 and the rear end face of the longitudinal part of the three-stage T-shaped power distribution cavity 1231 are rounded at both ends at the connection point, and the chamfer radius is r7; The horizontal distance from the left end face of the transverse part of the three-stage T-shaped power distribution cavity 1231 closest to the left inclined middle plate 1322 to the left end face of the left inclined middle plate 1322 is a24, and the horizontal distance from the right end face of the transverse part of the three-stage T-shaped power distribution cavity 1231 closest to the right inclined middle plate 1323 to the right end face of the right inclined middle plate 1323 is also a24; Two adjacent three-stage T-shaped power distribution cavities 1231 are arranged axially symmetrically, and the horizontal distance from the right end face of the transverse part of the three-stage T-shaped power distribution cavity 1231 to the left end face of the transverse part of the adjacent three-stage T-shaped power distribution cavity 1231 on the right is a25.Each three-stage T-shaped power distribution cavity 1231 contains a three-stage trapezoidal body 1232. The long side surface, i.e. the rear end, of the three-stage trapezoidal body 1232 is welded tightly to the rear end surface of the transverse part of the three-stage T-shaped power distribution cavity 1231. The two ends of the connection are rounded with a chamfer radius of r4. The three-stage trapezoidal body 1232 is an isosceles trapezoidal body. The length of the long side of the isosceles trapezoidal surface of the three-stage trapezoidal body 1232 is a26, the length of the short side of the isosceles trapezoidal surface is a27, the height of the isosceles trapezoidal surface is b9, and the height of the three-stage trapezoidal body 1232 is h4 (see). Figure 7 The acute interior angle is θ4; the left inclined surface of the tertiary trapezoid 1232 is rounded at the connection with the front end face with a radius of r3, and the right inclined surface of the tertiary trapezoid 1232 is rounded at the connection with the front end face with a radius of r3; the distance from the left end of the rear end face of the tertiary trapezoid 1232 closest to the left inclined middle plate 1322 to the left end face of the transverse part of the tertiary T-shaped power distribution cavity 1231 is a28, and the distance from the right end of the rear end face of the tertiary trapezoid 1232 closest to the left inclined middle plate 1322 to the right end face of the transverse part of the tertiary T-shaped power distribution cavity 1231 is a29; two adjacent tertiary trapezoids 1232 are arranged axially symmetrically, and the horizontal distance between the right end of the rear end face of the tertiary trapezoid 1232 and the left end of the rear end face of the adjacent tertiary trapezoid 1232 on the right is a30.

[0113] Figure 6 (e) is Figure 6 (a) A magnified view of a portion at point D, as shown below. Figure 6 As shown in (e), in combination Figure 5The four-stage power distribution channel 124 is an axisymmetric structure, consisting of N4 four-stage T-shaped power distribution cavities 1241 and N4 four-stage capsule columns 1242. The four-stage capsule columns 1242 are made of metal. Each four-stage T-shaped power distribution cavity 1241 contains one four-stage capsule column 1242, which is located within the power distribution channel 12 carved out by the power distribution filler 11. The lower surface of the four-stage capsule column 1242 is welded to the upper surface of the outer shell bottom plate 131, and the welding surface is the hollow part of the lower bottom surface of the power distribution filler 11. A portion of the upper surface of the four-stage capsule column 1242 is welded to the lower surface of the outer shell upper plate 133. The four-stage T-shaped power distribution cavity 1241... 241 is formed by the perpendicular intersection of a rectangular cavity with a transverse portion parallel to the OO' axis and a rectangular cavity with a longitudinal portion parallel to the PP' axis, i.e., a T-shape; the transverse portion of the four-stage T-shaped power distribution cavity 1241 has a width of a31, a length of b10, and a depth of h4; the longitudinal portion of the four-stage T-shaped power distribution cavity 1241 has a width of d, a length of b11, and a depth of h4; the front end face of the transverse portion of the four-stage T-shaped power distribution cavity 1241 is chamfered at both ends, with a chamfer angle of θ1 and a chamfer radius of c4; a plane parallel to the left end face of the transverse portion of the four-stage T-shaped power distribution cavity 1241, and with a distance of r9 from the left end face of the transverse portion of the four-stage T-shaped power distribution cavity 1241, is located at the intersection of the four-stage T-shaped power distribution cavity 1241 and the T-shaped power distribution cavity 1241. The left chamfer of the T-shaped power distribution cavity 1241 is rounded at the intersection, with a chamfer radius of r7. A plane parallel to the left end face of the transverse portion of the fourth-level T-shaped power distribution cavity 1241, and with a distance of r9 from the left end face of the transverse portion of the fourth-level T-shaped power distribution cavity 1241, is rounded at the intersection with the left end face of the fourth-level T-shaped power distribution cavity 1241, with a chamfer radius of r9. A plane parallel to the right end face of the transverse portion of the fourth-level T-shaped power distribution cavity 1241, and with a distance of r9 from the right end face of the transverse portion of the fourth-level T-shaped power distribution cavity 1241, is rounded at the intersection with the right chamfer of the fourth-level T-shaped power distribution cavity 1241, with a chamfer radius of r7. A plane parallel to the transverse portion of the fourth-level T-shaped power distribution cavity 1241... The right end face of part of the four-stage T-shaped power distribution cavity 1241, and the plane with a distance of r9 from the right end face of the transverse part of the four-stage T-shaped power distribution cavity 1241, intersects with the right end face of the four-stage T-shaped power distribution cavity 1241 at a rounded corner 1412 with a rounded corner radius of r9; the horizontal distance from the left end face of the longitudinal part of the four-stage T-shaped power distribution cavity 1241 to the left end face of the transverse part of the four-stage T-shaped power distribution cavity 1241 is c4, and the horizontal distance from the right end face of the longitudinal part of the four-stage T-shaped power distribution cavity 1241 to the right end face of the transverse part of the four-stage T-shaped power distribution cavity 1241 is c4; the front end face of the transverse part of the four-stage T-shaped power distribution cavity 1241 and the rear end face of the longitudinal part of the four-stage T-shaped power distribution cavity 1241 are rounded at both ends at the connection point, with a rounded corner radius of r8 for both.The horizontal distance from the left end face of the transverse portion of the four-stage T-shaped power distribution cavity 1241 closest to the left longitudinal middle plate 1324 to the right end face of the left longitudinal middle plate 1324 is s4. The horizontal distance from the right end face of the transverse portion of the four-stage T-shaped power distribution cavity 1241 closest to the right longitudinal middle plate 1325 to the left end face of the right longitudinal middle plate 1325 is also s4. The four-stage T-shaped power distribution cavity 1241 closest to the left longitudinal middle plate 1324 has a rounded corner at the intersection of the rounded corner 1411 and the left longitudinal middle plate 1324. The radius is r4; the fourth-stage T-shaped power distribution cavity 1241 closest to the right longitudinal middle plate 1325 has a rounded corner at the intersection of the rounded corner 1412 and the right longitudinal middle plate 1325, with a rounded corner radius of r4; the front end face of the longitudinal portion of the fourth-stage T-shaped power distribution cavity 1241 closest to the left longitudinal middle plate 1324 has a rounded corner at the right end, with a rounded corner radius of r10; the front end face of the longitudinal portion of the fourth-stage T-shaped power distribution cavity 1241 closest to the right longitudinal middle plate 1325 has a rounded corner at the left end, with a rounded corner radius of r10; The front end face of the longitudinal section of the second closest fourth-stage T-shaped power distribution cavity 1241 to the left longitudinal middle plate 1324 is rounded at the left end with a chamfer radius of r10; the front end face of the longitudinal section of the second closest fourth-stage T-shaped power distribution cavity 1241 to the right longitudinal middle plate 1325 is rounded at the right end with a chamfer radius of r10; the transverse sections of two adjacent fourth-stage T-shaped power distribution cavities 1241 are interconnected, except for the two fourth-stage T-shaped power distribution cavities 1241 closest to the left longitudinal middle plate 1324 and the two closest to the right longitudinal middle plate 1325. In addition, the other two adjacent four-stage T-shaped power distribution cavities 1241 are arranged axially symmetrically; each four-stage T-shaped power distribution cavity 1241 contains a four-stage capsule column 1242, the distance from the left end face of the four-stage capsule column 1242 to the left end face of the four-stage T-shaped power distribution cavity 1241 is a32, and the distance from the right end face of the four-stage capsule column 1242 to the right end face of the four-stage T-shaped power distribution cavity 1241 is also a32; the width of the four-stage capsule column 1242 is a33, the length is b12, and the height is h4 (see; Figure 7 The four-stage capsule cylinder 1242 has rounded corners at both ends, with a chamfer radius of r9. The distance from the top front end of the four-stage capsule cylinder 1242 to the front end face of the longitudinal part of the four-stage T-shaped power divider 1241 is b13. The horizontal distance between adjacent four-stage capsule cylinders 1242 is equal, and the horizontal distance between the right end face of the four-stage capsule cylinder 1242 and the left end face of the adjacent right four-stage capsule cylinder 1242 is a34. The transverse part of each four-stage T-shaped power divider 1241 is separated by the four-stage capsule cylinder 1242 located within it, forming two interconnected channels, i.e., two ports, which serve as output ports for power distribution. There are N4 four-stage T-shaped power dividers 1241 with a total of N output ports, where N and N4 satisfy N = N4 * 2.

[0114] like Figure 4As shown, the welding cover 2 is made of metal and seals the power divider body 1 to ensure that the input microwaves propagate within the power divider body 1. The width of the welding cover 2 is a3, the length is b14, and the height is h7 (see [reference]). Figure 7 The lower surface of the welding cover 2 is welded to the upper surface of the power distribution filler 11; the welding cover 2 is an axisymmetric structure, with chamfered corners at both ends of the front surface of the welding cover 2, the chamfer angle being equal to θ1 and the chamfer radius being equal to c1; the left and right ends of the rear surface of the welding cover 2 are rounded, with the chamfer radius being equal to r1; the left chamfer of the welding cover 2 is rounded at the connection with the left end face of the welding cover 2, with the chamfer radius being equal to r1; the right chamfer of the welding cover 2 is rounded at the connection with the right end face of the welding cover 2, with the chamfer radius being equal to r1.

[0115] like Figure 3 As shown, the sealing plate 3 is a cuboid made of 30% glass fiber PEEK material, with a width of a3, a length of b14, and a height of h6 (see [reference]). Figure 7 Except for the possible difference in height, the sealing plate 3 and the welding cover 2 are exactly the same in shape, and the lower surface of the sealing plate 3 is fixed to the upper surface of the welding cover 2 with screws.

[0116] Figure 9 yes Figure 3 A schematic diagram of the overall structure of medium window 4 and a magnified view of a part thereof. Figure 9 (a) is Figure 3 A schematic diagram of the overall structure of medium window 4, as shown below. Figure 9 As shown in (a), combined with Figure 3 The dielectric window 4 is a cuboid cavity made of 30% glass fiber PEEK material, with a width of a0, a length of b15, and a height of h3. The front surface of the dielectric window 4 is fixed with screws to the rear surface of the bottom plate 131, the rear surface of the left longitudinal middle plate 1324, the rear surface of the right longitudinal middle plate 1325, and the rear surface of the upper plate 133 of the outer casing of the power divider body 1. Figure 9 As shown in (a), combined with Figure 7 The front surface of the medium window 4 is located at a distance h8 from the upper surface of the medium window 4 (see...). Figure 7 A first rectangular groove 411 is opened towards the rear surface of the medium window 4 (see...). Figure 9 (a)), depth s5 (see Figure 7 The width of the first rectangular groove 411 is a5, and the height is h9. Figure 11 yes Figure 3 The rear view of media window 4, as shown Figure 11 As shown, combined with Figure 7 The rear surface of medium window 4 is located at a distance h8 from the upper surface of medium window 4 (see...). Figure 7 A second rectangular groove 412 is opened towards the front surface of the medium window 4, with a depth equal to s5 (see...). Figure 7The second rectangular groove 412 has a width of a5 and a height of h9; the front surface of the medium window 4 is located at a distance of h10 from the lower surface of the medium window 4 (see...). Figure 7 A third rectangular groove 413 is opened towards the rear surface of the medium window 4, with a depth equal to s5 (see...). Figure 7 The width of the third rectangular groove 413 is equal to a5, and the height is equal to h9; the rear surface of the medium window 4 is at a distance of h10 from the lower surface of the medium window 4 (see...). Figure 7 A fourth rectangular groove 414 is opened towards the front surface of the medium window 4, with a depth of s5 (see...). Figure 7 The fourth rectangular groove 414 has a width of a5 and a height of h9; for example... Figure 9 As shown in (a), a first rectangular plate 421 is filled in the first rectangular groove 411. The first rectangular plate 421 is a metal cuboid with a width equal to a5, a length equal to s5, and a height equal to h9; Figure 11 As shown, a second rectangular plate 422 is filled in the second rectangular groove 412. The second rectangular plate 422 is a metal cuboid with a width equal to a5, a length equal to s5, and a height equal to h9. Figure 9 As shown in (a), a third rectangular plate 423 is filled in the third rectangular groove 413. The third rectangular plate 423 is a metal cuboid with a width equal to a5, a length equal to s5, and a height equal to h9; Figure 11 As shown, a fourth rectangular plate 424 is filled in the fourth rectangular groove 414. The fourth rectangular plate 424 is a metal cuboid with a width of a5, a length of s5, and a height of h9.

[0117] Figure 10 yes Figure 9 A horizontal section view and a magnified view along the RR' plane, as shown below. Figure 9 As shown in (a), the RR' plane coincides with the front surface along the first rectangular groove 411. Figure 10 (b) is Figure 10 (a) A magnified view at point G; Figure 9 (b) is Figure 9 (a) A magnified view at point E, as shown Figure 10 As shown in (b), combined with Figure 9 (b) and Figure 11 On the front surface of the medium window 4, at a distance s6 from the left end face of the medium window 4, a left rectangular through slot 431 is opened towards the rear surface of the medium window 4. The depth of the slot is equal to b15. The left rectangular through slot 431 is a cuboid with a width equal to s3 and a height of h11 (see [reference]). Figure 9 (b) The left rectangular through slot 431 has rounded corners at both the top and bottom, with a chamfer radius of r12 (see...). Figure 9 (b)); such as Figure 10 As shown in (b), combined with Figure 9(b) A fifth rectangular plate 425 is filled from the front surface of the left rectangular through slot 431 to the rear surface. The fifth rectangular plate 425 is a metal cuboid with a width of s3, a length of b16, and a height of h11 (see [reference]). Figure 9 (b)); The fifth rectangular plate 425 has rounded corners at both the top and bottom, with a corner radius equal to r12 (see...). Figure 9 (b)); such as Figure 10 As shown in (b), combined with Figure 11 The sixth rectangular plate 426 is filled from the rear surface of the left rectangular through slot 431 towards the front surface. The sixth rectangular plate 426 is a metal cuboid with a width equal to s3, a length equal to b16, and a height equal to h11 (see [reference]). Figure 9 (b)); The sixth rectangular plate 426 has rounded corners at both the top and bottom, with a corner radius equal to r12 (see Figure 9 (b)). Figure 10 (c) is Figure 10 (a) A magnified view at point H. Figure 9 (c) is Figure 9 (a) A magnified view at point F, as shown Figure 10 As shown in (c), combined with Figure 9 (c) A right rectangular through slot 432 is opened on the front surface of the medium window 4 at a distance s6 from the right end face of the medium window 4, towards the rear surface of the medium window 4. The depth of the right rectangular through slot 432 is equal to b15, the width of the right rectangular through slot 432 is equal to s3, and the height is equal to h11 (see...). Figure 9 (c)); The right rectangular through slot 432 has rounded corners at both the top and bottom, with a corner radius of r12 (see...). Figure 9 (c)). For example Figure 10 As shown in (c), combined with Figure 9 (c) The seventh rectangular plate 427 is filled from the front surface of the right rectangular through slot 432 to the rear surface. The seventh rectangular plate 427 is a metal cuboid with a width equal to s3, a length equal to b16, and a height equal to h11 (see...). Figure 9 (c)); The seventh rectangular plate 427 has rounded corners at both the top and bottom, with a corner radius equal to r12 (see Figure 9 (c)); such as Figure 10 As shown in (c), combined with Figure 11 The eighth rectangular plate 428 is filled from the rear surface of the right rectangular through slot 432 towards the front surface. The eighth rectangular plate 428 is a metal cuboid with a width equal to s3, a length equal to b16, and a height equal to h11 (see [reference]). Figure 9 (c)); The eighth rectangular plate 428 has rounded corners at both the top and bottom, with a corner radius equal to r12 (see Figure 9 (c)). For example Figure 9 As shown in (a), combined with Figure 9 (b) and Figure 10(b) The front face of the medium window 4 is between the left rectangular through slot 431 and the right rectangular through slot 432, and N5 triangular prism slots 44 are opened sequentially from left to right (see Figure 10 (b) The upper end face of the triangular prism groove 44 coincides with the lower surface of the first rectangular groove 411, and the lower end face of the triangular prism groove 44 coincides with the upper surface of the third rectangular groove 413; the upper end face of the triangular prism groove 44 is an equilateral triangle with a side length of s7; the height of the triangular prism groove 44 is equal to h4. The function of the triangular prism groove 44 is to increase the power capacity. The microwave first passes directly through the rectangle formed by the first rectangular plate 421, the third rectangular plate 423, the fifth rectangular plate 425, and the seventh rectangular plate 427 in the dielectric window 4, and then passes through the rectangle formed by the second rectangular plate 422, the fourth rectangular plate 424, the sixth rectangular plate 426, and the eighth rectangular plate 428 in the dielectric window 4. The rear surface of the dielectric window 4 is connected to the front surface of the separating waveguide 5.

[0118] Figure 12 yes Figure 1 A schematic diagram of the overall structure of the partition waveguide 5, flange 6, and bent waveguide 7, and the rectangular waveguide slot antenna 101 with a dielectric cover. The partition waveguide 5, flange 6, and bent waveguide 7 are all made of metallic materials.

[0119] like Figure 12 As shown, combined with Figure 2 The separating waveguide 5 consists of a connecting plate 51 and a separating plate 52. Figure 15 yes Figure 12 A vertical sectional view along the plane TT', where TT' is parallel to OO' and located on the upper surface of partition plate 52, at a distance of s8 from the right end face of partition plate 52 (see...). Figure 12 ).like Figure 12 As shown, combined with Figure 15 The connecting plate 51 is a cuboid plate with a width of a0, a length of b17, and a height of h3. The partition plate 52 consists of a partition upper plate 521 and a partition main plate 522.

[0120] Figure 13 yes Figure 12 A horizontal cross-sectional view of the middle-splitter waveguide 5 along the SS' plane. SS' is parallel to PP' and located on the front surface of the connecting plate 51, at a distance equal to h1 from the upper surface of the connecting plate 51 (see...). Figure 12 ).like Figure 13 As shown, combined with Figure 15 The partition 52 is a cuboid plate with a width of a35 (see...). Figure 13 ), with a length of b18 (see Figure 15 ), height h12 (see Figure 15 h12 < h3, the lower end of the rear surface of the partition plate 52 is chamfered (see Figure 15 The chamfer angle is equal to θ1, and the chamfer dimension is c5. For example... Figure 13As shown, the upper surfaces of the connecting plate 51 and the partition plate 52 are on the same horizontal plane. The rear surface of the connecting plate 51 is welded to the front surface of the partition plate 52. The distance from the left end face of the partition plate 52 to the left end face of the connecting plate 51 is s9, and the distance from the right end face of the partition plate 52 to the right end face of the connecting plate 51 is equal to s9. a35=a0-2*s9.

[0121] Figure 14 yes Figure 12 A schematic diagram of the overall structure of the separator plate 52 in the separator waveguide 5. (See diagram below.) Figure 14 As shown, the partition plate 52 consists of a partition upper plate 521 and a partition main plate 522, wherein the lower surface of the partition upper plate 521 is welded to the upper surface of the partition main plate 522. The partition upper plate 521 is a cuboid plate with a width of a35, a length of b18, and a height of h1. A series of through holes 5211 are opened from the upper surface to the lower surface of the partition upper plate 521. The depth of the through holes 5211 is h1, the width is a36, and the length is b23. The through holes 5211 are arranged alternately from the left end to the right end of the partition upper plate 521. The distance from the through hole 5211 closest to the right end face of the partition upper plate 521 to both the right end face and the rear end face of the partition upper plate 521 is equal, both equal to s5; the distance from the through hole 5211 closest to the left end face of the partition upper plate 521 to the left end face of the partition upper plate 521 is s5, and the distance to the rear end face of the partition upper plate 521 is b21. The distance between the left and right end faces of two adjacent through holes 5211 is s11.

[0122] like Figure 12 As shown, combined with Figure 15 A first rectangular through slot 511 is opened from the front surface to the rear surface of the connecting plate 51, with a depth equal to b17 (see...). Figure 15 The width is a5, the height is h4, the distance from the upper surface of the first rectangular through slot 511 to the upper surface of the connecting plate 51 is h1; the distance from the lower surface of the first rectangular through slot 511 to the lower surface of the connecting plate 51 is h2; the distance from the left end face of the first rectangular through slot 511 to the left end face of the connecting plate 51 is s2 (see...). Figure 12 The distance from the right end face of the first rectangular through slot 511 to the right end face of the connecting plate 51 is equal to s2.

[0123] like Figure 13 As shown, combined with Figure 14 The main partition plate 522 is a cuboid plate with a width of a35, a length of b18, and a height of h13. The lower end of the rear surface is chamfered (see...). Figure 15 The chamfer angle is equal to θ1, and the chamfer dimension is equal to c5. For example... Figure 13As shown, there are two types of grooves in the partition main board 522, namely large grooves 5221 and small grooves 5222, both of which are grooved from the upper surface to the lower surface of the partition main board 522, and the depth is equal to h4. The distance from the right end face of the large groove 5221 closest to the right end face of the partition main board 522 to the right end face of the partition main board 522 is equal to s5; the distance from the left end face of the large groove 5221 closest to the left end face of the partition main board 522 to the left end face of the partition main board 522 is equal to s10; the distance from the right end face of the small groove 5222 closest to the right end face of the partition main board 522 to the right end face of the partition main board 522 is equal to s10; the distance from the left end face of the small groove 5222 closest to the left end face of the partition main board 522 to the left end face of the partition main board 522 is equal to s5; the large grooves 5221 and small grooves 5222 are arranged alternately, and the distance between the left end face of the adjacent large groove 5221 and the right end face of the small groove 5222 is equal to s11; the distance from the rear surface of the large groove 5221 to the rear end face of the partition main board 522 is equal to s5. The two ends of the front surface of the large groove 5221 are rounded, and the chamfer radius is equal to r7; the two ends of the front surface of the small groove 5222 are rounded, and the chamfer radius is equal to r7. As Figure 13 shown, combined with Figure 15 , the depth of the large groove 5221 is equal to h4, the width is a36, the length is b19, and the rear surface of the large groove 5221 is chamfered, the chamfer angle is equal to θ1, and the chamfer size is c6.

[0124] Figure 16 is Figure 12 a vertical sectional view along the UU' plane. UU' is parallel to TT', located on the upper surface of the partition board 52, and the distance from the right end face of the partition board 52 is s12 (see Figure 12 ). As Figure 13 shown, combined with Figure 16 , the depth of the small groove 5222 is equal to h4 (see Figure 16 ), the width is equal to a36 (see Figure 16 ), the length is b20 (b20 < b19), the rear surface of the small groove 5222 is chamfered, the chamfer angle is equal to θ1, and the chamfer size is equal to c6; the distance from the rear surface of the small groove 5222 to the rear surface of the partition main board 522 is b21.

[0125] Figure 17 is Figure 1 the overall structural schematic diagram of the middle flange 6, the overall structural schematic diagram of the flange bottom plate 61, and the overall structural schematic diagram of the flange middle plate 62; Figure 17 (a) is the overall structural schematic diagram of the flange 6; As Figure 17As shown in (a), flange 6 is composed of flange base plate 61, flange middle plate 62, and flange top plate 63. The upper surface of flange base plate 61 and the lower surface of flange middle plate 62 are welded together, and the upper surface of flange middle plate 62 and the lower surface of flange top plate 63 are welded together. The center points of flange base plate 61, flange middle plate 62 and flange top plate 63 coincide. Figure 17 (b) is Figure 17 (a) Schematic diagram of the overall structure of the flange base plate 61; as shown Figure 17 As shown in (b), the flange base plate 61 is a cuboid plate with a width of a37, a length of b22, and a height of h14; a second rectangular through groove 611 is cut from the lower surface of the flange base plate 61 to the upper surface of the flange base plate 61, with a depth of h14, a width of a36, and a length of b23, and the center point of the second rectangular through groove 611 coincides with the center point of the flange base plate 61.

[0126] Figure 17 (c) is Figure 17 (a) Schematic diagram of the overall structure of the middle flange plate 62, as shown. Figure 17 As shown in (c), the flange middle plate 62 is a cuboid plate with a width of a39, a length of b25, and a height equal to h8; the lower surface of the flange middle plate 62 is laid flat and welded to the upper surface of the flange base plate 61; as Figure 17 As shown in (c), a third rectangular through groove 621 is opened from the lower surface of the flange plate 62 to the upper surface, with a depth of h8, a width of a38, and a length of b24; the center point of the third rectangular through groove 621 coincides with the center point of the flange plate 62.

[0127] like Figure 17 As shown in (a), the flange upper plate 63 is a cuboid plate with a width of a40, a length of b25, and a height of h15. A fourth rectangular through groove 631 is cut from the lower surface to the upper surface of the flange upper plate 63, with a depth of h15, a width of d, and a length of s10. The center point of the fourth rectangular through groove 631 coincides with the center point of the flange upper plate 63. The lower surfaces of the flange base plates 61 of N flanges 6 are welded to the upper surface of the partition plate 52. The second rectangular through grooves 611 of the N flanges 6 are respectively connected to the through holes 5211. The length of the second rectangular through groove 611 is equal to the length of the through hole 5211 (i.e., b23), and the width of the second rectangular through groove 611 is equal to the width of the through hole 5211, the width of the large groove 5221, and the width of the small groove 5222 (i.e., a36). The length of the fourth rectangular through slot 631 is equal to the length of the vertical waveguide 71 of the curved waveguide 7, and the width of the fourth rectangular through slot 631 is equal to the width of the vertical waveguide 71. The vertical waveguide 71 is inserted into the fourth rectangular through slot 631 and fixed, and the insertion depth is equal to the depth h15 of the fourth rectangular through slot 631.

[0128] Figure 18 yes Figure 1A schematic diagram of the overall structure of the curved waveguide 7, including its left and bottom views; Figure 18 (a) is Figure 1 A schematic diagram of the overall structure of the curved waveguide 7; as shown. Figure 18 As shown in (a), combined with Figure 15 The curved waveguide 7 is composed of a vertical waveguide 71 and a horizontal waveguide 72 that are perpendicular to each other. Figure 18 (b) is Figure 1 Left view of the curved waveguide 7, as shown Figure 18 As shown in (b), combined with Figure 18 (a) The vertical waveguide 71 is a cuboid plate with a width equal to d (see Figure 18 (a) The length is equal to s10 and the height is h18; the horizontal waveguide 72 is a cuboid plate with a width equal to d (see Figure 18 (a) The length is equal to b25, the height is equal to s10, and the rear end of the upper surface of the horizontal waveguide 72 is chamfered with an angle equal to θ1. See [reference]. Figure 18 (b) The chamfer size is c7. Figure 18 (c) is Figure 1 A bottom view of the curved waveguide 7, as shown below. Figure 18 As shown in (c), combined with Figure 15 A fifth rectangular slot 711 is opened from the lower surface to the upper surface of the vertical waveguide 71, with a depth of h16 (see [reference]). Figure 15 The width is a38 and the length is b26; the distances from the four end faces of the fifth rectangular slot 711 to the four end faces of the vertical waveguide 71 are equal and equal to s17 (see...). Figure 18 (c)). For example Figure 18 As shown in (a), combined with Figure 15 A sixth rectangular slot 721 with a depth of b27 is opened from the front surface to the rear surface of the horizontal waveguide 72 (see...). Figure 15 The width is a38 and the height is b26. The rear end of the upper surface of the sixth rectangular through slot 721 is rounded with a chamfer radius of r14 (see...). Figure 15 The distances from the four end faces of the sixth rectangular slot 721 to the four end faces of the horizontal waveguide 72 are equal, and all equal to s17 (see...). Figure 18 (a)); The distance from the rear end face of the sixth rectangular through slot 721 to the rear surface of the horizontal waveguide 72 is equal to s17.

[0129] like Figure 15 and Figure 16 As shown, the lower surface of the flange plate 61 of flange 6 is welded to the upper surface of the partition plate 52 of the waveguide 5. Each flange 6 corresponds to a through hole 5211, and the center point of the second rectangular through slot 611 coincides with the center point of the through hole 5211. Figure 12As shown, the distance between adjacent flanges 6 is 0, and the left end face of flange 6 is connected to the right end face of its adjacent left flange 6; the distance from the left end face of the flange base plate 61 of the flange 6 located at the leftmost end of the partition plate 52 to the left end face of the partition plate 52 is equal to s18 (see...). Figure 12 The distance from the right end face of the flange base plate 61 of the flange 6 located at the rightmost end of the partition plate 52 to the right end face of the partition plate 52 is equal to s18 (see...). Figure 12 ).like Figure 16 As shown, the vertical waveguides 71 of the N curved waveguides 7 are respectively inserted into the fourth rectangular through slots 631 of the N flange upper plates 63, and the insertion depth is equal to the height h15 of the flange upper plate 63.

[0130] Figure 19 This is a schematic diagram of the overall structure of the high-power microwave rectangular waveguide slot antenna 101 with a dielectric shading; as shown. Figure 19 As shown, the rectangular waveguide slotted antenna 101 with dielectric cover consists of dielectric cover 8 and slotted waveguide 9 (see...). Figure 20 ), support column 10 (see Figure 20 ), support rod 201 (see) Figure 21 The device consists of a dielectric shroud 8 that completely encloses a slotted waveguide 9, with support pillars 10 and support rods 201 located between the dielectric shroud 8 and the slotted waveguide 9. The end closer to the microwave source is defined as the input end, and the end farther from the microwave source is defined as the output end. One open end of the dielectric shroud 8 is connected to the curved waveguide 7 as the input port of the high-power waveguide slotted array antenna with a dielectric shroud, while the other end is a closed structure. The dielectric shroud 8 is composed of a front shroud 81, a main shroud 82, and a rear shroud 83. The front shroud 81 is located on the front end face of the main shroud 82, and the rear shroud 83 is located on the rear end face of the main shroud 82. The front shroud 81 and the rear shroud 83 seal the main shroud 82. The front shroud 81, the main shroud 82, and the rear shroud 83 are all made of fiberglass. The dielectric shroud 8 is a sealed structure, and after being evacuated, it is filled with sulfur hexachloride gas.

[0131] Figure 20 This is a schematic diagram of the structure of the rectangular waveguide slot antenna 101 with a dielectric cover after being horizontally cut along the II' plane, as shown below. Figure 20 As shown, the slotted waveguide 9 is connected to the front cover 81 by rivets.

[0132] Figure 21 yes Figure 19 A sectional view along the vertical section of the JJ' plane, as shown below. Figure 20 As shown, combined with Figure 21 The slotted waveguide 9 consists of three parts: a rectangular base plate 91, two rectangular middle plates 92, and a rectangular top plate 93, all made of metal. The rectangular base plate 91, the two rectangular middle plates 92, and the rectangular top plate 93 together form a rectangular channel 94 (see...). Figure 19For ease of description, draw the central axis XX' of the rectangular channel 94 along the input-to-output direction, with point X on the input end face and point X' on the rear cover 83; draw the longitudinal axis ZZ' through point X on the input end face, ZZ' is perpendicular to the rectangular base plate 91, the end furthest from the rectangular base plate 91 (Z end) is the upper end, and the end closest to the rectangular base plate 91 (Z' end) is the lower end; draw the transverse axis YY' through point X on the input end face, the transverse axis YY' is perpendicular to the longitudinal axis ZZ', the Y end is the left end, and the Y' end is the right end. To prevent grating lobes from appearing in the far-field pattern, the width a41 of the slotted waveguide 9 should be smaller than the free-space wavelength.

[0133] like Figure 21 As shown, the rectangular base plate 91 is a cuboid plate with a width of a41, a height of h19, and a length of b29 (see [reference]). Figure 22 Two rectangular middle plates 92 are welded symmetrically to the left and right ends of the upper surface of the rectangular base plate 91 along the central axis XX'. The rectangular middle plate 92 is a cuboid plate with a width of a42, a height of b26, and a length of b29. The lower surface of the rectangular top plate 93 is laid flat and welded to the upper surface of the two rectangular middle plates 92 along the central axis XX'. The rectangular top plate 93 is a cuboid plate with a width of a41, a height of h9, and a length of b29. The rectangular base plate 91, the two rectangular middle plates 92, and the rectangular top plate 93 together form a rectangular channel 94. The surfaces of the rectangular base plate 91, the two rectangular middle plates 92, and the rectangular top plate 93 closest to the axis XX' are the inner surfaces. The rectangular channel 94 has a width of a38, a height of b26, and a length of b29, where a38 = a41 - 2 * a42.

[0134] Figure 22 yes Figure 19 A horizontal section view and a partial enlarged view along plane II'; Figure 22 (a) is Figure 19 A horizontal sectional view along plane II'; Figure 22 (b) is Figure 22 (a) A magnified view at point K1; Figure 22 (c) is Figure 22 (a) A magnified view at point K2. (e.g.) Figure 22 (a) Figure 22 (b) and Figure 22As shown in (c), a rectangular upper plate 93 has waveguide slots 95 along the ZZ' direction. There are K rectangular waveguide slots 95, each with a length of b34 and a width of a41, forming an angle θ5 with the YY' axis. On the rectangular upper plate 93, the right end of the waveguide slot 95 closest to X is deflected away from X by θ5, and the next waveguide slot 95 is deflected closer to X by θ5, arranged alternately on the rectangular upper plate 93. The waveguide slots 95 are slotted from the upper surface of the rectangular upper plate 93 towards the rectangular bottom plate 91, with a slot depth of c9, where c9 > h9 (see [reference]). Figure 20 Waveguide slot 95 connects the upper surface of rectangular upper plate 93 and rectangular channel 94; the axial spacing between adjacent waveguide slots 95 is b32, and the axial spacing between the waveguide slot 95 closest to the front cover 81 and the slotted waveguide 9 near the X end face is s23 (see...). Figure 22 (a) The axial distance from the nearest waveguide slot 95 to the slotted waveguide 9 near the X' end face is equal to s23 (see Figure 22 (b)).

[0135] like Figure 20 As shown, the support columns 10 are cylindrical structures made of fiberglass, totaling N6, with a diameter of c8 and a height of h25 (see [reference]). Figure 21 );like Figure 22 As shown, N6 support columns 10 are distributed along the central axis XX' and fixed to the upper surface of the rectangular upper plate 93 with screws; the axial distance between adjacent support columns 10 is b33, and the axial distance between the support column 10 closest to the rear cover 83 and the rear cover 83 is s24.

[0136] like Figure 19 As shown, combined with Figure 20 and Figure 21 The main cover 82 consists of three parts: a rectangular bottom cover plate 821, two rectangular middle cover plates 822, and a rectangular upper cover plate 823, all of which are made of fiberglass. Figure 21 As shown, a rectangular base plate 821 is symmetrically welded to the lower surface of a rectangular base plate 91 about the XX' axis; the rectangular base plate 821 is a cuboid plate with a width of a43, a height of h20, and a length of b30 (see...). Figure 20Two rectangular middle cover plates 822 are symmetrically welded about the central axis XX' to the left and right ends of the upper surface of the rectangular bottom cover plate 821. The rectangular middle cover plate 822 is a cuboid plate with a width of a44, a height of h21, and a length of b30. The rectangular upper cover plate 823 is laid flat and welded to the upper surface of the two rectangular middle cover plates 822. The rectangular upper cover plate 823 is a cuboid plate with a width of a43, a height of h9, and a length of b30. The surfaces of the rectangular bottom cover plate 821, the two rectangular middle cover plates 822, and the rectangular upper cover plate 823 closest to the axis XX' are the inner surfaces. The corners at the connection between the rectangular bottom cover plate 821 and the two rectangular middle cover plates 822 are rounded, with the inner surface having a chamfer radius of r12 and the outer surface having a chamfer radius of r7. The corners at the connection between the rectangular upper cover plate 823 and the two rectangular middle cover plates 822 are rounded, with the inner surface having a chamfer radius of r2 and the outer surface having a chamfer radius of r15. The distance between the inner surface of the rectangular middle cover plate 822 and the outer surface of the adjacent rectangular middle plate 92 is a45 (see...). Figure 21 ), 2*a45+2*a44+a41=a43.

[0137] Figure 24 This is a front view of the microwave input end face of the rectangular waveguide slot antenna 101 with a dielectric cover. (See image below.) Figure 24 As shown, dashed lines represent invisible structural lines, combined with... Figure 20 , Figure 22 and Figure 23 The front cover 81 is a convex-shaped metal cuboid with a width of a43, a height of h22, and a thickness of s22 (see [reference]). Figure 22 (c) and Figure 23 (b)). For example Figure 24 As shown, on the end face of the front cover 81 away from X, four rectangular grooves are cut from the edge towards the central axis XX' in four directions: top, bottom, left, and right. The rectangular groove closest to Z' is the third groove 811. The width of the third groove 811 is equal to the width a43 of the rectangular bottom cover plate 821, and the height of the third groove 811 is equal to the height h20 of the rectangular bottom cover plate 821. The rectangular groove on the left side closest to Y is the fourth groove 812. The width of the fourth groove 812 is equal to the width a44 of the rectangular middle cover plate 822, and the height of the fourth groove 812 is equal to the height h of the rectangular middle cover plate 822. 21; The rectangular groove on the left, near Y', is the fifth groove 813. The width of the fifth groove 813 is equal to the width a44 of the rectangular middle cover plate 822, and the height of the fifth groove 813 is equal to the height h21 of the rectangular middle cover plate 822; The rectangular groove on the upper side, near Z, is the sixth groove 814. The width of the sixth groove 814 is equal to the width a43 of the rectangular upper cover plate 823, and the height of the sixth groove 814 is equal to the height of the rectangular upper cover plate 823 (equal to h9); The third groove 811, the fourth groove 812, the fifth groove 813, and the sixth groove 814 have the same depth, all of which is s9 (see...). Figure 22 (c) and Figure 23 (b)); The third groove 811, the fourth groove 812, the fifth groove 813, and the sixth groove 814 are interconnected; the connection between the third groove 811 and the fourth groove 812 is rounded, with the inner side near X having a chamfer radius of r12 and the outer side away from X having a chamfer radius of r7; the connection between the third groove 811 and the fifth groove 813 is rounded, with the inner side near X having a chamfer radius of r12 and the outer side away from X having a chamfer radius of r7; the connection between the sixth groove 814 and the fourth groove 812 is rounded, with the inner side near X having a chamfer radius of r2 and the outer side away from X having a chamfer radius of r15; the connection between the sixth groove 814 and the fifth groove 813 is rounded, with the inner side near X having a chamfer radius of r2 and the outer side away from X having a chamfer radius of r15; as Figure 24 As shown, the front cover 81 has a rectangular through slot 815 cut along the central axis XX' from the microwave input end face, connecting to the rectangular channel 94; the width of the rectangular through slot 815 is equal to the width a38 of the rectangular channel 94, the height of the rectangular through slot 815 is equal to the height b26 of the rectangular channel 94, and the depth is equal to s22 (see...). Figure 22 (c) and Figure 23 (b) The distance between the lower surface of the rectangular through groove 815 and the lower surface of the front cover 81 is s6, s6 = h19 + h20; the distance between the upper surface of the rectangular through groove 815 and the upper surface of the front cover 81 is s19, s19 = h9 + h25 + h9 (see...) Figure 21 The distance between the left surface of the rectangular through slot 815 and the left surface of the front cover 81 is a46, where a46 = a42 + a44 + a45 (see...). Figure 21 The distance between the right surface of the rectangular through slot 815 and the right surface of the front cover 81 is equal to a46. The end face of the front cover 81 away from X is fixedly connected to the end faces of the rectangular bottom cover plate 821, the rectangular middle cover plate 822, and the rectangular upper cover plate 823 of the main cover 82 near X by screws. The front surface of the front cover 81 is welded to the front surface of the horizontal waveguide 72 in the curved waveguide 7, wherein the height of the rectangular through slot 815 is equal to the height of the sixth rectangular through slot 721 (equal to b26), and the width is equal to the width of the sixth rectangular through slot 721 (equal to a38). The height of the rectangular through slot 815 coincides with the center point of the sixth rectangular through slot 721 and they are interconnected.

[0138] Figure 25 This is a front view of the microwave output end face of the rectangular waveguide slot antenna 101 with a dielectric cover. (See image below.) Figure 25 As shown, dashed lines represent invisible structural lines, combined with... Figure 20 , Figure 22 and Figure 23 The rear cover 83 is a convex-shaped metal cuboid with a width of a43, a height of h22, and a thickness of s22 (see [reference]). Figure 22 (b) and Figure 23(c)). For example Figure 25 As shown, on the end face of the rear cover 83 away from X', four rectangular grooves are cut from the edge towards the central axis XX' in four directions: top, bottom, left, and right. The rectangular groove on the bottom of the rear cover 83 near Z' is the seventh groove 831. The width of the seventh groove 831 is equal to the width a43 of the rectangular bottom cover plate 821, and the height of the seventh groove 831 is equal to the height h20 of the rectangular bottom cover plate 821. The rectangular groove on the right side near Y is the eighth groove 832. The width of the eighth groove 832 is equal to the width a44 of the rectangular middle cover plate 822, and the height of the eighth groove 832 is equal to the height h20 of the rectangular middle cover plate 822. Height h21; The rectangular groove on the right side near Y' is the ninth groove 833, the width of the ninth groove 833 is equal to the width a44 of the rectangular middle cover plate 822, and the height of the ninth groove 833 is equal to the height h21 of the rectangular middle cover plate 822; The rectangular groove on the upper side near Z is the tenth groove 834, the width of the tenth groove 834 is equal to the width a43 of the rectangular upper cover plate 823, and the height of the tenth groove 834 is equal to the height h9 of the rectangular upper cover plate 823; The seventh groove 831, the eighth groove 832, the ninth groove 833, and the tenth groove 834 have equal depths, all equal to s9 (see...). Figure 22 (c) and Figure 23 (b)); The seventh groove 831, the eighth groove 832, the ninth groove 833, and the tenth groove 834 are interconnected; the connection between the seventh groove 831 and the eighth groove 832 is rounded, with the inner side near X' having a chamfer radius of r12 and the outer side away from X' having a chamfer radius of r7; the connection between the seventh groove 831 and the ninth groove 833 is rounded, with the inner side near X' having a chamfer radius of r12 and the outer side away from X' having a chamfer radius of r7; the connection between the tenth groove 834 and the eighth groove 832 is rounded, with the inner side near X' having a chamfer radius of r2 and the outer side away from X' having a chamfer radius of r15; the connection between the tenth groove 834 and the ninth groove 833 is rounded, with the inner side near X' having a chamfer radius of r2 and the outer side away from X' having a chamfer radius of r15; the axial distance from the rear cover 83 to the slotted waveguide 9 near the X' end face is equal to s4 (see Figure 22 (b) and Figure 23 (c) satisfies b30=b29+2*s9+s4 (see Figure 23 The end face of the rear cover 83 away from X' is fixedly connected to the end faces of the rectangular bottom cover plate 821, the rectangular middle cover plate 822, and the rectangular upper cover plate 823 of the main cover 82 near X' by screws.

[0139] Figure 23 This is a side view of a cross-section of the rectangular waveguide slot antenna 101 with a dielectric cover of the present invention, after being horizontally cut along the MM' plane. (See image below.) Figure 23 (a) Figure 23 (b) Figure 23 (c) and Figure 21 As shown, support rod 201 is a cuboid made of fiberglass, with a width of a45, a height of h23, and a length of b31. It is located between the rectangular middle plate 92 and the rectangular middle cover plate 822 and is fixed to the rectangular middle plate 92 with screws. There are N7 support rods 201 in total, which are divided into two columns. The number of support rods in each column is equal to N7 / 2. They are symmetrically distributed on the left and right sides of the rectangular middle plate 92 along the central axis XX'. The lateral spacing between the two columns of support rods 201 is a41, and the spacing in the height direction of the support rods 201 in the same column is s20 (see...). Figure 23 (b) The distance from the nearest support rod 201 to the lower surface of the rectangular base plate 91 is s21 (see Figure 21 The distance from the nearest support rod 201 to the upper surface of the rectangular upper plate 93 is equal to s21 (see...). Figure 23 (b)).

[0140] The slotted waveguide 9 radiates the microwaves received in the curved waveguide 7. The dielectric cover 8 encloses the slotted waveguide 9 and is filled with sulfur hexachloride gas, which can achieve good airtightness, isolate the slotted waveguide 9 from the external environment, and withstand low temperatures of -50°C and high temperatures of 50°C.

[0141] like Figure 16 As shown, the front surface of the horizontal waveguide 72 in the curved waveguide 7 is welded to the front surface of the front cover 81 in the dielectric cover 8. The sixth rectangular through slot 721 has the same height and width as the rectangular through slot 815. The upper surface of the sixth rectangular through slot 721 is on the same horizontal plane as the upper surface of the rectangular through slot 815, the lower surface of the sixth rectangular through slot 721 is on the same horizontal plane as the lower surface of the rectangular through slot 815, the left surface of the sixth rectangular through slot 721 is on the same vertical plane as the left surface of the rectangular through slot 815, and the right surface of the sixth rectangular through slot 721 is on the same vertical plane as the right surface of the rectangular through slot 815.

[0142] The working process of this invention is as follows:

[0143] In the vacuum window sealed power divider 100 of the present invention, the through hole 1341 in the waveguide port 134 of the power divider body 1 serves as the input port, receiving the rectangular waveguide TE from the microwave source. 10 The microwave input mode is fed into N1 primary power divider channels 121, which then enter the N1 primary power divider channels 121 through waveguide port 134. The primary power divider channels 121 divide the rectangular waveguide TE according to the equal power ratio. 10 The mode microwave is divided into N2 section, which is then input into the secondary power divider channel 122; the secondary power divider channel 122 divides the rectangular waveguide TE according to the equal power. 10 The mode microwave is divided into N3 sections, which are then input into the three-stage power divider channel 123; the three-stage power divider channel 123 divides the rectangular waveguide TE according to the equal power.10 The mode microwave is divided into N4 sections, which are then input into a four-stage power divider channel 124; the four-stage power divider channel 124 divides the rectangular waveguide TE according to the equal power. 10 The mode microwave is divided into N parts, and the rectangular waveguide TE 10 The microwave propagates from the N output ports of the power divider body 1 through the rectangle formed by the first rectangular plate 421, the third rectangular plate 423, the fifth rectangular plate 425, and the seventh rectangular plate 427 in the dielectric window 4, and then through the rectangle formed by the second rectangular plate 422, the fourth rectangular plate 424, the sixth rectangular plate 426, and the eighth rectangular plate 428 in the dielectric window 4, before being output to the separating waveguide 5 to achieve power distribution of the N waveguides. These N microwaves are distributed through N flanges 6 into N bent waveguides 7, and then into N slotted waveguides 9. The slotted waveguides 9 radiate the microwaves, and the dielectric cover 8 encloses the slotted waveguides 9. The dielectric cover 8 is filled with sulfur hexachloride gas, which can achieve good airtightness, isolate the slotted waveguides 9 from the external environment, and withstand low temperatures of -50°C and high temperatures of 50°C.

[0144] The welding cover 2 seals the upper surface of the power divider body 1, ensuring that the input microwaves propagate within the power divider body 1 and reducing microwave leakage. The sealing plate 3 further seals the upper surface of the power divider body 1, thereby further reducing microwave leakage within the power divider body 1. The eight rectangular plates in the dielectric window 4 ensure that the microwaves are confined within the dielectric window 4 for propagation without leakage, ensuring both electrical contact and airtightness. The dielectric window 4 maintains airtightness at both high and low temperatures, thus ensuring the normal operation of the invention at both high and low temperatures. The triangular prism slot 44 increases power capacity during power division and power combination.

[0145] Example 1

[0146] The following is an example (let's call it Example 1) of a 1 / 16 (N=16) high-power microwave waveguide slot antenna array for C-band (frequency range of 4-8 GHz, corresponding to microwave wavelength range of 75.00-37.50 mm). Specific design dimensions (lowest frequency fmin=4 GHz, highest frequency fmax=8 GHz):

[0147] Based on the operating frequency band and power allocation requirements, after initial selection, the electromagnetic simulation software CST Studio Suite was used for optimization. The main parameters of Example 1 are as follows:

[0148] The outer casing base plate 131 has a width a3 = 643 mm, a length b1 = 204.9 mm, a height h1 = 20 mm, and chamfers θ1 = 45° on both sides, with a chamfer dimension c1 = 135.5 mm. The transverse middle plate 1321 has a width a2 = 382 mm, a height h3 = 94.2 mm, and a thickness s1 = 6 mm. The left-tilted middle plate 1322 has a length L1 = 191.6 mm, a height h3 = 94.2 mm, and a thickness s1 = 6 mm. The right-tilted middle plate 1323 has a length L1 = 191.6 mm and a height h3 = 6 mm. 94.2mm, thickness s1=6mm; Left longitudinal middle plate 1324: length b2=75.4mm, height h3=94.2mm, thickness s1=6mm; Right longitudinal middle plate 1325: length b2=75.4mm; height h3=94.2mm, thickness s1=6mm; Outer shell upper plate 133: width a3=643mm, length b3=21mm, height h2=16mm; Waveguide port 134: width a4=69mm, length b4=15mm, height h3=94.2mm; Through hole 1341 Width d = 29mm, depth b3 = 21mm, height h4 = 58.2mm, distance h1 = 20mm between the lower surface of through hole 1341 and the lower surface of waveguide port 134, distance h2 = 25mm between the upper surface of through hole 1341 and the upper surface of waveguide port 134; width a5 = 640mm, length s3 = 3mm, depth h5 = 9mm, distance s1 = 6mm between the rear end face of the first groove 1311 and the rear end face of the bottom plate 131 of the outer casing, distance h4 = 58.2mm between the left end face of the first groove 1311 and the left surface of the left longitudinal middle plate 1324. The distance s2 = 7.5mm, from the right end face of the first groove 1311 to the right surface of the right longitudinal middle plate 1325; the width a5 = 640mm, length s3 = 3mm, and depth h6 = 5mm of the second groove 1331; the distance s1 = 6mm from the rear surface of the second groove 1331 to the rear surface of the upper plate 133 of the outer shell; the distance s2 = 7.5mm from the left end face of the second groove 1331 to the left surface of the left longitudinal middle plate 1324; and the distance s2 = 7.5mm from the right end face of the second groove 1331 to the right surface of the right longitudinal middle plate 1325.

[0149] The power distributor 11 has a width a3 = 643 mm, a length b1 = 204.9 mm, and a height h4 = 58.2 mm. Both ends of the front surface of the power distributor 11 are chamfered with an angle θ1 = 45° and a chamfer dimension c1 = 135.5 mm. The chamfer radius r1 = 6 mm at the junction of the chamfers and the left and right ends of the front surface of the power distributor 11; the chamfer radius r1 = 6 mm at the junction of the left chamfer and the left end face of the power distributor 11; and the chamfer radius r1 = 6 mm at the junction of the right chamfer and the right end face of the power distributor 11.

[0150] The number of primary T-shaped power distribution chambers 1211 is N1=1. The width of the transverse portion of primary T-shaped power distribution chamber 1211 is a1=343.6mm, the length is d=29mm, and the depth is h4=58.2mm. The chamfer angles at both ends are θ1=45°, and the chamfer dimension is c2=25.8mm. The width of the longitudinal portion of primary T-shaped power distribution chamber 1211 is d=29mm, the length is b5=14mm, and the depth is h4=58.2mm. The horizontal distance from the left end face of the longitudinal portion of primary T-shaped power distribution chamber 1211 to the left end face of the transverse portion is a10=157.3mm, and the horizontal distance from the right end face of the longitudinal portion of primary T-shaped power distribution chamber 1211 to the right end face of the transverse portion is a10=157.3mm. Primary T-shaped power distribution chamber 1211... The horizontal distance from the left end face of the transverse section 11 to the right surface of the left inclined middle plate 1322 is a6=59.7mm; the horizontal distance from the right end face of the transverse section of the first-stage T-shaped power distribution cavity 1211 to the left surface of the right inclined middle plate 1323 is a6=59.7mm; the length of the long side of the trapezoidal surface of the first-stage trapezoidal body 1212 is a7=53.2mm, the length of the short side of the trapezoidal surface is a8=4.5mm, the height of the trapezoidal surface is b6=18.6mm, the height of the first-stage trapezoidal body 1212 is h4=58.2mm, the acute interior angle θ2=40°, the distance from the left end of the rear end face of the first-stage trapezoidal body 1212 to the left end of the transverse section of the first-stage T-shaped power distribution cavity 1211 is a9=145.2mm, and the distance from the right end of the rear end face of the first-stage trapezoidal body 1212 to the right end of the transverse section of the first-stage T-shaped power distribution cavity 1211 is a9=145.2mm.

[0151] The number of secondary T-shaped power distribution cavities 1221 is N2=2. The transverse portion of the secondary T-shaped power distribution cavity 1221 has a width a11=185.1mm, a length d=29mm, and a depth h4=58.2mm. The chamfer angles at both ends are θ1=45°, and the chamfer dimension is c2=25.8mm. The longitudinal portion of the secondary T-shaped power distribution cavity 1221 has a width d=29mm, a length b7=16mm, and a depth h4=58.2mm. The longitudinal portion of the secondary T-shaped power distribution cavity 1221 closest to the left inclined middle plate 1322 has a length from the left end face to the secondary... The horizontal distance a12 from the left end face of the transverse portion of the T-shaped power distribution cavity 1221 is 80.8 mm; the horizontal distance a13 from the right end face of the longitudinal portion of the secondary T-shaped power distribution cavity 1221 to the right end face of the transverse portion of the secondary T-shaped power distribution cavity 1221 is 75.3 mm; the horizontal distance a14 from the left end face of the transverse portion of the secondary T-shaped power distribution cavity 1221 closest to the left inclined middle plate 1322 to the right surface of the left inclined middle plate 1322 is 24.1 mm; the horizontal distance a14 from the right end face of the transverse portion of the secondary T-shaped power distribution cavity 1221 closest to the right inclined middle plate 1323 is 24.1 mm. The horizontal distance a14 from the left surface of the right-inclined middle plate 1323 is 24.1 mm; the horizontal distance a15 from the right end face of the transverse part of the secondary T-shaped power distribution cavity 1221 to the left end face of the transverse part of the adjacent secondary T-shaped power distribution cavity 1221 is 134.9 mm; the length of the long side of the isosceles trapezoidal surface of the secondary trapezoid 1222 is a16 = 45.5 mm, the length of the short side of the isosceles trapezoidal surface is a17 = 11 mm, the height of the isosceles trapezoidal surface is b8 = 14.5 mm, the height of the secondary trapezoid 1222 is h4 = 58.2 mm, and the acute interior angle θ3 is... =57.2°; the distance a18 from the left end of the rear end face of the second-order trapezoid 1222 closest to the left inclined middle plate 1322 to the left end face of the transverse part of the second-order T-shaped power distribution cavity 1221 is 67.7mm; the distance a19 from the right end of the rear end face of the second-order trapezoid 1222 closest to the left inclined middle plate 1322 to the right end face of the transverse part of the second-order T-shaped power distribution cavity 1221 is 71.9mm; the horizontal distance a20 from the right end of the rear end face of the second-order trapezoid 1222 to the left end of the rear end face of the adjacent second-order trapezoid 1222 is 278.7mm.

[0152] The number of three-stage T-shaped power distribution cavities 1231 is N3=4. The transverse portion of the three-stage T-shaped power distribution cavity 1231 has a width a21=109mm, a length d=29mm, and a depth h4=58.2mm. The chamfer angles at both ends are θ1=45°, and the chamfer dimension is c3=25mm. The longitudinal portion of the three-stage T-shaped power distribution cavity 1231 has a width d=29mm, a length b7=16mm, and a depth h4=58.2mm. The distance from the left end face of the longitudinal portion of the three-stage T-shaped power distribution cavity 1231 closest to the left inclined middle plate 1322 to the three-stage T-shaped power distribution cavity 1231 is... The horizontal distance a22 from the left end face of the transverse portion of 231 is 42mm; the horizontal distance a23 from the right end face of the longitudinal portion of the three-stage T-shaped power distribution cavity 1231 closest to the left inclined middle plate 1322 to the right end face of the transverse portion of the three-stage T-shaped power distribution cavity 1231 is 38mm; the horizontal distance a24 from the left end face of the transverse portion of the three-stage T-shaped power distribution cavity 1231 closest to the left inclined middle plate 1322 to the left end face of the left inclined middle plate 1322 is 26.5mm; the horizontal distance a24 from the left end face of the transverse portion of the three-stage T-shaped power distribution cavity 1231 closest to the right inclined middle plate 1323 is 26.5mm; the horizontal distance a24 from the left end face of the transverse portion of the three-stage T-shaped power distribution cavity 1231 closest to the right inclined middle plate 1323 is 38mm. The horizontal distance from the right end face to the right end face of the right inclined middle plate 1323 is a24 = 26.5 mm; the horizontal distance from the right end face of the transverse part of the three-stage T-shaped power distribution cavity 1231 to the left end face of the transverse part of the adjacent three-stage T-shaped power distribution cavity 1231 is a25 = 50.9 mm; the length of the long side of the isosceles trapezoidal surface of the three-stage trapezoidal body 1232 is a26 = 38.6 mm, the length of the short side of the isosceles trapezoidal surface is a27 = 7 mm, the height of the isosceles trapezoidal surface is b9 = 17.7 mm, the height of the three-stage trapezoidal body 1232 is h4 = 58.2 mm, and the acute interior angle θ 4 = 66.2°; the distance a28 = 32.6 mm from the left end of the rear end face of the three-stage trapezoid 1232 closest to the left inclined middle plate 1322 to the left end face of the transverse part of the three-stage T-shaped power distribution cavity 1231; the distance a29 = 37.8 mm from the right end of the rear end face of the three-stage trapezoid 1232 closest to the left inclined middle plate 1322 to the right end face of the transverse part of the three-stage T-shaped power distribution cavity 1231; the horizontal distance a30 = 126.5 mm between the right end of the rear end face of the three-stage trapezoid 1232 and the left end of the rear end face of the adjacent three-stage trapezoid 1232.

[0153] The number of four-stage T-type power distribution chambers 1241 is N4=8. The transverse portion of the four-stage T-type power distribution chamber 1241 has a width a31=80mm, a length b10=52.6mm, and a depth h4=58.2mm. The left and right ends have chamfered angles θ1=45°, with a chamfer dimension c4=25.4mm. The longitudinal portion of the four-stage T-type power distribution chamber 1241 has a width d=29mm, a length b11=19.3mm, and a depth h4=58.2mm. The horizontal distance c4 from the left end face of the longitudinal section of the T-type power distribution cavity 1241 to the left end face of the transverse section of the fourth-stage T-type power distribution cavity 1241 is 25.4 mm; the horizontal distance c4 from the right end face of the longitudinal section of the fourth-stage T-type power distribution cavity 1241 to the right end face of the transverse section of the fourth-stage T-type power distribution cavity 1241 is 25.4 mm; the water level from the left end face of the transverse section of the fourth-stage T-type power distribution cavity 1241 closest to the left longitudinal middle plate 1324 to the right end face of the left longitudinal middle plate 1324... The horizontal distance s4 = 1.5 mm is the horizontal distance from the right end face of the transverse portion of the fourth-stage T-shaped power distribution cavity 1241, which is closest to the right longitudinal middle plate 1325, to the left end face of the right longitudinal middle plate 1325. The distance a32 from the left end face of the fourth-stage capsule column 1242 to the left end face of the fourth-stage T-shaped power distribution cavity 1241 is 34.25 mm. The distance a32 from the right end face of the fourth-stage capsule column 1242 to the right end face of the fourth-stage T-shaped power distribution cavity 1241 is also 1.5 mm. =34.25mm, width a33=11.5mm, length b12=21.6mm, height h4=58.2mm, distance from the front top of the fourth-stage capsule column 1242 to the front end face of the longitudinal part of the fourth-stage T-shaped power distribution cavity 1241 b13=36.4mm, horizontal distance a34=68.5mm between the right end face of the fourth-stage capsule column 1242 and the left end face of the adjacent fourth-stage capsule column 1242 on the right.

[0154] The chamfer radius r1 = 6mm is located at the junction of the left end face of the transverse middle plate 1321 and the right end face of the left inclined middle plate 1322; the chamfer radius r1 = 6mm is located at the junction of the right end face of the transverse middle plate 1321 and the left end face of the right inclined middle plate 1323; the chamfer radius r1 = 6mm is located at the junction of the left end face of the left inclined middle plate 1322 and the front end face of the left longitudinal middle plate 1324; the chamfer radius r1 = 6mm is located at the junction of the right end face of the right inclined middle plate 1323 and the front end face of the right longitudinal middle plate 1325. The chamfer radius r1 = 6mm is also located at the junction of the left end face of the outer shell upper plate 133 and the right end face of the left longitudinal middle plate 1324, away from O'. The chamfer radius r2 = 5mm at the connection between the rear end face of the waveguide port 134 and the front end face of the transverse middle plate 1321; the chamfer radius r11 = 8mm at both ends of the lower surface of the first groove 1311; and the chamfer radius r2 = 5mm at both ends of the upper surface of the second groove 1331.

[0155] The chamfer radius r4 = 2.5mm at the rear surface of the first-stage T-shaped power distribution cavity 1211 after the chamfer, the chamfer radius r4 = 2.5mm at the connection between the right chamfer and the right end face of the first-stage T-shaped power distribution cavity 1211, and the chamfer radius r4 = 2.5mm at the connection between the chamfer and both ends of the front surface of the first-stage T-shaped power distribution cavity 1211; the first-stage T-shaped power distribution cavity... The chamfer radius r3 = 10mm at both ends of the connection between the front face of the transverse part of 1211 and the rear face of the longitudinal part of the first-stage T-shaped power distribution cavity 1211; the chamfer radius r4 = 2.5mm at the connection between the rear face of the first-stage trapezoid 1212 and the rear face of the transverse part of the first-stage T-shaped power distribution cavity 1211; the chamfer radius r5 = 3.5mm at the connection between the left inclined surface and the front face of the first-stage trapezoid 1212; and the chamfer radius r5 = 3.5mm at the connection between the right inclined surface and the front face of the first-stage trapezoid 1212.

[0156] The chamfer radius r4 = 2.5mm at the connection between the left chamfer of the secondary T-shaped power distribution cavity 1221 and the left end face of the transverse portion of the secondary T-shaped power distribution cavity 1221; the chamfer radius r4 = 2.5mm at the connection between the right chamfer of the secondary T-shaped power distribution cavity 1221 and the right end face of the transverse portion of the secondary T-shaped power distribution cavity 1221; the chamfer radius r4 = 2.5mm at the connection between the chamfer of the secondary T-shaped power distribution cavity 1221 and the two ends of the front surface of the transverse portion of the secondary T-shaped power distribution cavity 1221; the front end face of the longitudinal portion of the secondary T-shaped power distribution cavity 1221 is at a distance from the transverse portion of the secondary T-shaped power distribution cavity 1221. The chamfer radius r3 = 10mm at the end closer to the left and right end faces; the chamfer radius r1 = 6mm at both ends of the connection between the front end face of the transverse part of the secondary T-shaped power distribution cavity 1221 and the rear end face of the longitudinal part of the secondary T-shaped power distribution cavity 1221; the chamfer radius r4 = 2.5mm at both ends of the connection between the rear end face of the secondary trapezoid 1222 and the rear end face of the transverse part of the secondary T-shaped power distribution cavity 1221; the chamfer radius r6 = 12mm at the connection between the left inclined surface and the front end face of the secondary trapezoid 1222, and the chamfer radius r6 = 12mm at the connection between the right inclined surface and the front end face of the secondary trapezoid 1222.

[0157] The chamfer radius r4 = 2.5mm at the connection between the left chamfer of the three-stage T-shaped power distribution cavity 1231 and the left end face of the transverse portion of the three-stage T-shaped power distribution cavity 1231; the chamfer radius r4 = 2.5mm at the connection between the right chamfer of the three-stage T-shaped power distribution cavity 1231 and the right end face of the transverse portion of the three-stage T-shaped power distribution cavity 1231; the chamfer radius r4 = 2.5mm at the connection between the chamfer of the three-stage T-shaped power distribution cavity 1231 and the two ends of the front surface of the transverse portion of the three-stage T-shaped power distribution cavity 1231; the front end face of the longitudinal portion of the three-stage T-shaped power distribution cavity 1231 is located at a distance from the transverse portion of the three-stage T-shaped power distribution cavity 1231. The chamfer radius at the end closer to the left and right end faces is r3=10mm; the chamfer radius at both ends of the connection between the front end face of the transverse part of the three-stage T-shaped power distribution cavity 1231 and the rear end face of the longitudinal part of the three-stage T-shaped power distribution cavity 1231 is r7=3mm; the chamfer radius at both ends of the connection between the rear end face of the three-stage trapezoidal body 1232 and the rear end face of the transverse part of the three-stage T-shaped power distribution cavity 1231 is r4=2.5mm; the chamfer radius at the connection between the left inclined surface and the front end face of the three-stage trapezoidal body 1232 is r3=10mm, and the chamfer radius at the connection between the right inclined surface and the front end face of the three-stage trapezoidal body 1232 is r3=10mm.

[0158] A plane parallel to the left end face of the transverse portion of the fourth-level T-type power distribution cavity 1241, at a distance r9 = 5.25mm from the left end face of the transverse portion of the fourth-level T-type power distribution cavity 1241, has a chamfer radius r7 = 3mm at the intersection with the left chamfer of the fourth-level T-type power distribution cavity 1241; a plane parallel to the left end face of the transverse portion of the fourth-level T-type power distribution cavity 1241, at a distance r9 = 5.25mm from the left end face of the transverse portion of the fourth-level T-type power distribution cavity 1241, has a chamfer radius r9 = 5.25mm at the intersection with the left end face of the fourth-level T-type power distribution cavity 1241; a plane parallel to the left end face of the fourth-level T-type power distribution cavity 1241 .... The plane parallel to the right end face of the transverse portion of the fourth-stage T-type power distribution cavity 1241, at a distance r9 = 5.25 mm from the right end face of the transverse portion of the fourth-stage T-type power distribution cavity 1241, has a chamfer radius r7 = 3 mm at the intersection with the right chamfer of the fourth-stage T-type power distribution cavity 1241; the plane parallel to the right end face of the transverse portion of the fourth-stage T-type power distribution cavity 1241, at a distance r9 = 5.25 mm from the right end face of the transverse portion of the fourth-stage T-type power distribution cavity 1241, has a chamfer radius r9 = 5.25 mm at the intersection with the right end face of the fourth-stage T-type power distribution cavity 1241; the fourth-stage T-type power distribution cavity 1241... 41. The front end face of the transverse section and the rear end face of the four-stage T-shaped power distribution cavity 1241 have chamfer radii r8 = 2mm at both ends of the connection; the four-stage T-shaped power distribution cavity 1241 closest to the left longitudinal middle plate 1324 has a chamfer radii r4 = 2.5mm at the intersection of the rounded corner 1411 and the left longitudinal middle plate 1324; the four-stage T-shaped power distribution cavity 1241 closest to the right longitudinal middle plate 1325 has a chamfer radii r4 = 2.5mm at the intersection of the rounded corner 1412 and the right longitudinal middle plate 1325; the four-stage T-shaped power distribution cavity 1241 closest to the left longitudinal middle plate 1324 .... The chamfer radius r10 = 4mm at the right end of the front face of the fourth-stage T-shaped power distribution cavity 1241 closest to the right longitudinal middle plate 1325 is r10 = 4mm at the left end; the chamfer radius r10 = 4mm at the left end of the front face of the longitudinal part of the fourth-stage T-shaped power distribution cavity 1241 second closest to the left longitudinal middle plate 1324 is r10 = 4mm at the left end; the chamfer radius r10 = 4mm at the right end of the front face of the longitudinal part of the fourth-stage T-shaped power distribution cavity 1241 second closest to the right longitudinal middle plate 1325 is r10 = 4mm at the right end; the chamfer radius r9 = 5.25mm at both ends of the fourth-stage capsule column 1242.

[0159] The width of welding cover 2 is a3=643mm, the length is b14=183.9mm, and the height is h7=12mm. The chamfers at both ends of the front surface of welding cover 2 are θ1=45°, and the chamfer size is c1=135.5mm. The chamfer radius at both ends of the rear surface of welding cover 2 is r1=6mm; the chamfer radius at the connection between the chamfer of welding cover 2 and the left and right ends of the front surface of welding cover 2 is r1=6mm; the chamfer radius at the connection between the left chamfer of welding cover 2 and the left end face of welding cover 2 is r1=6mm; the chamfer radius at the connection between the right chamfer of welding cover 2 and the right end face of welding cover 2 is r1=6mm.

[0160] The sealing plate 3 has a width a3 = 643 mm, a length b14 = 183.9 mm, and a height h6 = 5 mm. The chamfers at both ends of the front surface of the sealing plate 3 are equal to θ1 = 45°, and the chamfer dimensions are equal to c1 = 135.5 mm. The chamfer radii at both ends of the rear surface of the sealing plate 3 are r1 = 6 mm; the chamfer radius at the connection between the chamfer of the sealing plate 3 and the left and right ends of the front surface of the sealing plate 3 is r1 = 6 mm; the chamfer radius at the connection between the left chamfer of the sealing plate 3 and the left end face of the sealing plate 3 is r1 = 6 mm; and the chamfer radius at the connection between the right chamfer of the sealing plate 3 and the right end face of the sealing plate 3 is r1 = 6 mm.

[0161] The medium window 4 has a width a0 = 655 mm, a length b15 = 20.6 mm, and a height h3 = 94.2 mm. The first rectangular groove 411 is located h8 = 13 mm from the upper surface of the medium window 4, with a width a5 = 640 mm, a height h9 = 3 mm, and a depth s5 = 9 mm. The second rectangular groove 412 is located h8 = 13 mm from the upper surface of the medium window 4, with a width a5 = 640 mm, a height h9 = 3 mm, and a depth s5 = 9 mm. The third rectangular groove 413 is located h10 = 17 mm from the lower surface of the medium window 4, with a width a5 = 640 mm, a height h9 = 3 mm, and a depth s5 = 9 mm. =9mm; The fourth rectangular groove 414 is located 17mm from the lower surface of the medium window 4 at a distance h10=17mm, with a width a5=640mm, a height h9=3mm, and a depth s5=9mm; The first rectangular plate 421 has a width a5=640mm, a length s5=9mm, and a height h9=3mm; The second rectangular plate 422 has a width a5=640mm, a length s5=9mm, and a height h9=3mm; The third rectangular plate 423 has a width a5=640mm, a length s5=9mm, and a height h9=3mm; The fourth rectangular plate 424 has a width a5=640mm, a length s5=9mm, and a height h9=3mm;

[0162] The left rectangular through-slot 431 is located 3.5mm from the left end face of the medium window 4 (s6 = 3.5mm). The width of the left rectangular through-slot 431 is s3 = 3mm, the height is h11 = 66.2mm, the depth is b15 = 20.6mm, and the chamfer radius at both ends is r12 = 1.5mm. The fifth rectangular plate 425 has a width of s3 = 3mm, a length of b16 = 8.8mm, a height of h11 = 66.2mm, and the chamfer radius at both ends is r12 = 1.5mm. The sixth rectangular plate 426 has a width of s3 = 3mm, a length of b16 = 8.8mm, a height of h11 = 66.2mm, and the chamfer radius at both ends is r12 = 1.5mm. The right rectangular through-slot 432 is located 3.5mm from the right end face of the medium window 4 (s6 = 3.5mm). s3=3mm, height h11=66.2mm, depth b15=20.6mm, chamfer radius at both ends r12=1.5mm; the seventh rectangular plate 427 has a width s3=3mm, length b16=8.8mm, height h11=66.2mm, and chamfer radius at both ends r12=1.5mm; the eighth rectangular plate 428 has a width s3=3mm, length b16=8.8mm, height h11=66.2mm, and chamfer radius at both ends r12=1.5mm; the number of triangular prism slots 44 is N5=640, the side length of the upper end face of the triangular prism slot 44 is s7=1mm, and the height of the triangular prism slot 44 is h4=58.2mm.

[0163] The connecting plate 51 in the partition waveguide 5 has a width a0 = 655 mm, a length b17 = 10 mm, and a height h3 = 94.2 mm; the partition plate 52 has a width a35 = 645 mm, a length b18 = 110 mm, and a height h12 = 83.2 mm. The lower end of the rear surface of the partition plate 52 has a chamfer angle θ1 = 45°, and the chamfer dimension c5 = mm; the distance from the left end face of the partition plate 52 to the left end face of the connecting plate 51 is s9 = 5 mm, and the distance from the right end face of the partition plate 52 to the right end face of the connecting plate 51 is s9 = 5 mm. The first rectangular through groove 511 has a depth b17=10mm, a width a5=640mm, and a height h4=58.2mm; the distance from the upper surface of the first rectangular through groove 511 to the upper surface of the connecting plate 51 is h1=20mm; the distance from the lower surface of the first rectangular through groove 511 to the lower surface of the connecting plate 51 is h2=16mm; the distance from the left end face of the first rectangular through groove 511 to the left end face of the connecting plate 51 is s2=7.5mm; the distance from the right end face of the first rectangular through groove 511 to the right end face of the connecting plate 51 is s2=7.5mm.

[0164] The upper partition plate 521 has a width of a35=645mm, a length of b18=110mm, and a height of h1=20mm; the through hole 5211 has a depth of h1=20mm, a width of a36=27mm, and a length of b23=76.2mm. The distance s5=9mm from the left end face of the upper partition plate 521 to both the left and rear end faces of the upper partition plate 521; the distance s5=9mm from the right end face of the upper partition plate 521 to the right end face of the upper partition plate 521, and the distance b21= to the rear end face of the upper partition plate 521. The distance s11=13mm between the left and right end faces of two adjacent through holes 5211.

[0165] The width of the partition panel 522 is a35=645mm, the length is b18=110mm, the height is h13=63.2mm, the lower end of the rear surface has a chamfer angle θ1=45°, and the chamfer size is c5=44mm. The distance s5 = 9mm from the right end face of the largest groove 5221 closest to the right end face of the partition main plate 522; the distance s10 = 49mm from the left end face of the largest groove 5221 closest to the left end face of the partition main plate 522; the distance s10 = 49mm from the right end face of the smallest groove 5222 closest to the right end face of the partition main plate 522; the distance s10 = 49mm from the left end face of the smallest groove 5222 closest to the left end face of the partition main plate 522; the distance s11 = 13mm between the left end face of the adjacent large groove 5221 and the right end face of the small groove 5222; and the distance s5 = 9mm from the rear surface of the large groove 5221 to the rear end face of the partition main plate 522. The front surface of the large groove 5221 has rounded corners at both ends, with a chamfer radius r7 = 3mm; the front surface of the small groove 5222 also has rounded corners at both ends, with a chamfer radius r7 = 3mm. The large groove 5221 has a depth h4 = 58.2mm, a width a36 = 27mm, and a length b19 = 101mm. The rear surface of the large groove 5221 has a chamfer angle θ1 = 45°, with a chamfer dimension c6 = 35.6mm. The small groove 5222 has a depth h4 = 58.2mm, a width a36 = 27mm, and a length b20 = 77.9mm. The rear surface of the small groove 5222 has a chamfer angle θ1 = 45°, with a chamfer dimension c6 = 35.6mm. The distance from the rear surface of the small groove 5222 to the rear surface of the partition plate 5222 is b21 = 32.1mm.

[0166] The flange base plate 61 has a width of a37=40mm, a length of b22=76.2mm, and a height of h14=8.2mm. The second rectangular through-slot 611 has a depth of h16=8.4mm, a width of a38=25mm, and a length of b24=51mm; the flange middle plate 62 has a width of a39=31mm, a length of b25=61.5mm, and a height of h8=13mm; the third rectangular through-slot 621 has a depth of h8=13mm, a width of a38=25mm, and a length of b24=51mm; the flange top plate 63 has a width of a40=34mm, a length of b25=61.5mm, and a height of h15=4mm. The fourth rectangular through-slot 631 has a depth of h15=4mm, a width of d=29mm, and a length of s10=49mm.

[0167] The vertical waveguide 71 has a width d = 29 mm, a length s10 = 49 mm, and a height h18 = 53.6 mm. The horizontal waveguide 72 has a width d = 29 mm, a length b25 = 55 mm, and a height s10 = 49 mm; the rear end chamfer of the upper surface of the horizontal waveguide 72 is θ1 = 45°, and the chamfer dimension is c7 = 30.6 mm. The fifth rectangular through slot 711 has a depth h16 = 55.6 mm, a width a38 = 25 mm, and a length b26 = 45 mm; the distances from the four end faces of the fifth rectangular through slot 711 to the four end faces of the vertical waveguide 71 are equal, s17 = 2 mm. The sixth rectangular through slot 721 has a depth of b27=53mm, a width of a38=25mm, and a height of b26=45mm. The radius of the rounded corner at the rear end of the upper surface of the sixth rectangular through slot 721 is r14=50.3mm. The distances from the four end faces of the sixth rectangular through slot 721 to the four end faces of the horizontal waveguide 72 are equal, s17=2mm. The distance from the rear end face of the sixth rectangular through slot 721 to the rear surface of the horizontal waveguide 72 is s17=2mm. The eighth rectangular groove 722 has a depth of s17=2mm, a width of a38=25mm, and a length of b26=45mm.

[0168] The distance s6 from the front surface of the second rectangular through groove 611 to the front surface of the through hole 5211 is 3.5mm, and the distance s6 from the rear surface of the second rectangular through groove 611 to the rear surface of the through hole 5211 is 3.5mm. The distance s18 from the left end face of the flange base plate 61 of the flange 6 located at the leftmost end of the partition plate 52 to the left end face of the partition plate 52 is 2.5mm, and the distance s18 from the right end face of the flange base plate 61 of the flange 6 located at the rightmost end of the partition plate 52 to the right end face of the partition plate 52 is 2.5mm.

[0169] To achieve the desired X-band microwave frequency of TE in slotted waveguide 9 10For mode transmission, the width a41 and height h24 of the slotted waveguide 9 need to be adjusted. After initial selection, the electromagnetic simulation software CST Studio Suite was used for optimization, resulting in a41=28mm and h24=49.5mm; the width of the rectangular base plate 91 is a41=28mm, the height is h19=1.5mm, and the length is b29=525mm; the width of the rectangular middle plate 92 is a42=1.5mm, the height is b26=45mm, and the length is b29=525mm; the width of the rectangular base plate 91 is a41=28mm, the height is h9=3mm, and the length is b29=525mm; the width of the rectangular channel 94 is a38=25mm, the height is b26=45mm, and the length is b29=525mm.

[0170] The waveguide slots 95 have a number of K=20, a width of a41=28, a length of b34=9mm, a tilt angle of θ5=5°, a depth of c9=3.6mm, an axial spacing of b32=25mm between adjacent waveguide slots 95, an axial spacing of s23=25mm between the waveguide slot 95 closest to the front cover 81 and the slotted waveguide 9 near the X end face, and an axial spacing of s23=25mm between the waveguide slot 95 closest to the rear cover 83 and the slotted waveguide 9 near the X' end face.

[0171] The number of support columns 10 is N6=3, the diameter is c8=6mm, the height is h25=16.1mm, the axial distance between adjacent support columns 10 is b33=174mm, and the axial distance from the support column 10 closest to the rear cover 83 to the rear cover 83 is s234=11mm. The number of support rods 201 is N7=4, the width is a45=1.9mm, the height is h23=1.8mm, the length is b31=526.5mm, the lateral distance between two rows of support rods 201 (2 rods per row) is a41=28mm, the vertical distance between support rods 201 in the same row is s20=17.1mm, the vertical distance from the support rod 201 closest to the rectangular base plate 91 to the lower surface of the rectangular base plate 91 is s21=16.2mm, and the longitudinal distance from the support rod 201 closest to the rectangular top plate 93 to the upper surface of the rectangular top plate 93 is s21=16.2mm.

[0172] To ensure the dielectric cover 8 completely encloses the slotted waveguide 9, guaranteeing its airtightness while minimizing its impact on the waveguide 9, adjustments are needed to the width a43 and height h22 of the dielectric cover 8, the thickness s22 of the front cover 81, and the depth s9 of the first annular through groove 111. After initial selection, optimization using electromagnetic simulation software CST Studio Suite yielded the following values: a43 = 35.8 mm, h22 = 70.6 mm, s22 = 6.5 mm, and s9 = 5 mm. The dielectric cover 8 has the following dimensions: width a43 = 35.8 mm, height h22 = 70.6 mm, and length b28. The rectangular bottom cover 821 has the following dimensions: width a43 = 35.8 mm, height h20 = 2 mm, and length b30 = 536.5 mm. The rectangular middle cover 822 has the following dimensions: width a44 = 2 mm, height h21 = 65.6 mm, and length b30 = 536.5 mm. The rectangular upper cover 82... The width of groove 3 is a43=35.8mm, the height is h9=3mm, and the length is b30=536.5mm; the width of front cover 81 is a43=35.8mm, the height is h22=70.6mm, and the thickness is s22=6.5mm; the width of the third groove 811 is a43=35.8mm, the height is h20=2mm, and the depth is s9=5mm; the width of the fourth groove 812 is a44=2mm, the height is h21=65.6mm, and the depth is s9=5mm; the width of the fifth groove 813 is a44=2mm, the height is h9=3mm, and the length is b30=536.5mm. 21=65.6mm, depth s9=5mm; the width of the sixth groove 814 is a43=35.8mm, the height is h9=3mm, and the depth is s9=5mm; the width of the rectangular through groove 815 is a38=25mm, the height is h9=3mm, and the depth is s22=6.5mm; the distance from the left surface of the rectangular through groove 815 to the left surface of the front cover 81 is a46=5.4mm; the width of the rear cover 83 is a43=35.8mm, the height is h22=70.6mm, and the thickness is s22=6.5mm; the seventh groove 831 The width of the eighth groove 832 is a43=35.8mm, the height is h20=2mm, and the depth is s9=5mm; the width of the ninth groove 832 is a44=2mm, the height is h21=65.6mm, and the depth is s9=5mm; the width of the tenth groove 834 is a43=35.8mm, the height is h9=3mm, and the depth is s9=5mm; the axial distance from the rear cover 83 to the slotted waveguide 9 near the X' end face is s4=1.5mm.

[0173] The chamfer radius r12 = 1.5mm on the inner surface of the connection between the rectangular bottom cover plate 821 and the two rectangular middle cover plates 822; the chamfer radius r7 = 3mm on the outer surface of the connection between the rectangular bottom cover plate 821 and the two rectangular middle cover plates 822; the chamfer radius r2 = 5mm on the inner surface of the connection between the rectangular top cover plate 823 and the two rectangular middle cover plates 822; and the chamfer radius r15 = 7mm on the outer surface of the connection between the rectangular top cover plate 823 and the two rectangular middle cover plates 822. The chamfer radius r12 on the inner side of the connection between the third groove 811 and the fourth groove 812 near X is 1.5mm, and the chamfer radius r7 = 3mm on the outer side away from X is 3mm. The chamfer radius r12 on the inner side of the connection between the third groove 811 and the fifth groove 813 near X is 1.5mm, and the chamfer radius r7 = 3mm on the outer side away from X is 3mm. The chamfer radius r2 on the inner side of the connection between the sixth groove 814 and the fourth groove 812 near X is 5mm, and the chamfer radius r15 = 7mm on the outer side away from X is 7mm. The chamfer radius of the outer side of X is r15=7mm; the chamfer radius of the inner side of the junction of the sixth groove 814 and the fifth groove 813 near X is r2=5mm, and the chamfer radius of the outer side away from X is r15=7mm; the chamfer radius of the inner side of the junction of the seventh groove 831 and the eighth groove 832 near X' is r12=1.5mm, and the chamfer radius of the outer side away from X' is r7=3mm; the chamfer radius of the inner side of the junction of the seventh groove 831 and the ninth groove 833 near X' is r12=1.5mm, and the chamfer radius of the outer side away from X' is r7=3mm; the chamfer radius of the inner side of the junction of the tenth groove 834 and the eighth groove 832 near X' is r2=5mm, and the chamfer radius of the outer side away from X' is r15=7mm; the chamfer radius of the inner side of the junction of the tenth groove 834 and the ninth groove 833 near X' is r2=5mm, and the chamfer radius of the outer side away from X' is r15=7mm. Figure 26 The electric field distribution characteristics of Example 1 are obtained by simulating Example 1 with an input microwave power of 0.5W at a working frequency of 4.3GHz using the electromagnetic simulation software CST Studio Suite. Figure 26 The left side shows the electric field intensity distribution diagram of Example 1, where the part outside the rectangle is the electric field intensity distribution of the power divider in Example 1; Figure 26 The right side shows the specific numerical values ​​of the electric field strength (the colors of the electric field strength on the left correspond to the specific numerical values ​​on the right). From Figure 26As shown on the left, the electric field distribution changes from one path to sixteen paths (see the rectangular box), and except for the location of Example 1, there is no electric field in other areas, indicating no microwave leakage. Therefore, it can be concluded that the power divider in Example 1 can effectively achieve a 1-to-16 power distribution and ensure the sealing and vacuum state when transmitting microwaves to the external antenna transmitting system. Since temperature changes of 50°C and -50°C in a vacuum state do not affect the microwave transmission characteristics, experiments were conducted on the power divider in Example 1 at 50°C and -50°C to verify that it can still complete power distribution at both temperatures. Figure 26 The specific values ​​of the electric field on the right are shown inside Example 1 (from...) Figure 26 Looking at the right side, the color of the maximum electric field intensity is red. (Compared to the left side, the maximum electric field intensity is located at the connection between the waveguide opening and the longitudinal section of the first-stage T-shaped power divider cavity.) It is 976 V / m. Based on the electric field breakdown threshold under vacuum conditions... It is 700kV / m, by The power capacity of the power divider in Example 1 under vacuum conditions can be calculated. The maximum power capacity can reach 2.57GW. In Example 1, the longest length of the power divider is 204.9mm and the widest width is 655mm. These simulation results show that the power divider in Example 1 has a compact structure, small size, and large power capacity. It can be used in low temperatures of -50°C and high temperatures of 50°C, and has extremely high practical value in the fields of HPM channel power distribution and other technologies.

[0174] Figure 27 The electric field distribution characteristics of the rectangular waveguide slot array antenna in Example 1 are obtained by simulating the rectangular waveguide slot array antenna in the power divider in Example 1 using electromagnetic simulation software CST Studio Suite when the input microwave power is 0.5W at the operating frequency of 4.3GHz. Figure 27 The left side shows the electric field intensity distribution of the rectangular waveguide slot array antenna in Example 1. Figure 27 The right side shows the specific numerical values ​​of the electric field strength (the colors of the electric field strength on the left correspond to the specific numerical values ​​on the right). Figure 27 As can be seen on the left, except for the location of the rectangular waveguide slot array antenna in Example 1, there is no electric field in the other areas, indicating that there is no microwave leakage. This proves that the rectangular waveguide slot array antenna in Example 1 can still radiate microwaves at 50°C and -50°C. Figure 28 This is the two-dimensional radiation pattern of the rectangular waveguide slot array antenna in Example 1 at an operating frequency of 4.3 GHz. Figure 28The vertical axis represents the antenna gain, measured in dBi, and the horizontal axis, theta, represents the antenna elevation scanning angle, measured in degrees. Figure 28 As shown, the gain at 4.3 GHz in the C-band is 36.3 dBi, and the first sidelobe level is -13.4 dB. (From...) Figure 28 It can be seen that the rectangular waveguide slot array antenna in Example 1 has a high gain and a relatively low first sidelobe level.

[0175] Combination Figure 26 , Figure 27 Figure 28 Example 1 has a compact structure, small size, and large power capacity. It can be used at low temperatures of -50°C and high temperatures of 50°C, and has extremely high practical value in the field of HPM technology.

Claims

1. A high-power microwave waveguide slot antenna array, comprising a power divider and N rectangular waveguide slot antennas, characterized in that... The power divider is a vacuum window sealed power divider (100), and the rectangular waveguide slot antenna is a rectangular waveguide slot antenna with a dielectric cover (101). The vacuum window sealed power divider (100) and N rectangular waveguide slot antennas with dielectric covers (101) are connected by a partition waveguide (5), N sets of flanges (6), and N curved waveguides (7). The end of the high-power microwave waveguide slot antenna array closest to the microwave source is defined as the input end, and the end furthest from the microwave source is defined as the output end. The input port of the vacuum window sealed power divider (100) is connected to a microwave source, which divides the microwave received from the microwave source into N sets of microwaves and inputs them into the partition waveguide (5). The partition waveguide (5) inputs these N sets of microwaves into the N rectangular waveguide slot antennas with dielectric covers (101) through the N sets of flanges (6) and the curved waveguides (7), respectively. The N rectangular waveguide slot antennas with dielectric covers (101) radiate the microwaves. N is a positive even number, which is equal to the number of power divisions to be achieved. The vacuum window sealed power divider (100) consists of a power divider body (1), a welding cover (2), a sealing plate (3), and a dielectric window (4); the vacuum window sealed power divider (100) is symmetrical about the central axis OO'; the power divider body (1) has an input port at point O and N output ports near O' connected to the dielectric window (4), and the dielectric window (4) is connected to the separating waveguide (5); the power divider body (1) is a cuboid with chamfered ends on the front surface, which distributes or combines microwaves with equal power; the welding cover (2) is a cuboid plate with chamfered ends on the front surface, which seals the upper surface of the power divider body (1); the dielectric window (4) transmits the N groups of microwaves received from the power divider body (1) to the separating waveguide (5), and ensures airtightness at high and low temperatures; The rear surface of the dielectric window (4) of the vacuum window sealed power divider (100) is welded to the front surface of the partition waveguide (5); N flanges (6) are welded to the upper surface of the partition waveguide (5); the lower surfaces of the N flanges (6) are respectively welded to the upper surface of the partition waveguide (5), and the flange plates (63) of the N flanges (6) are respectively connected to the N bent waveguides (7) in sequence; the N bent waveguides (7) are respectively connected to the N rectangular waveguide slot antennas (101) with dielectric covers in sequence. The main body (1) of the power divider consists of a power divider filler (11) and a main body shell (13). The power divider filler (11) is wrapped by the main body shell (13) and the welding cover (2), and is welded and fixed to each side of the main body shell (13). A power divider channel (12) is dug in the power divider filler (11). The power divider channel (12) is a four-level power divider channel. The four-level power divider channels are arranged in sequence from O to O' and are interconnected. The power divider channel has N output ports connected to the medium window (4). The main body shell (13) is a shell with an unclosed rear end face and an unclosed upper end face, which is surrounded by the shell bottom plate (131), the shell middle plate (132), the shell top plate (133) and the waveguide port (134). The unclosed rear end is connected to the medium window (4). The upper outer shell plate (133) is welded to the middle outer shell plate (132), and the bottom outer shell plate (131) is welded to the bottom of the middle outer shell plate (132); The outer shell middle plate (132) is formed by a transverse middle plate (1321), a left-inclined middle plate (1322) and a right-inclined middle plate (1323) symmetrical about the OO' axis, and a left-longitudinal middle plate (1324) and a right-longitudinal middle plate (1325) symmetrical about the OO' axis. The waveguide port (134) is a cuboid plate symmetrical about the OO' axis and is welded to the front surface of the transverse middle plate (1321). The waveguide port (134) and the transverse middle plate (1321) have through holes (1341) along the OO' direction. The front end face of the welding cover (2) is flush with the front end face of the power distribution filler (11), and the lower surface of the welding cover (2) is welded to the power distribution filler (11), which is an axisymmetric structure. The sealing plate (3) has the same shape as the welding cover (2), and its lower surface is fixed on the welding cover (2); A groove is provided in the medium window (4), and a rectangular plate is provided in each groove; and a rectangular through slot (431) is provided in the medium window (4), and two rectangular plates are filled in each rectangular through slot (431); a first rectangular groove (411) and a third rectangular groove (413) are provided on the front surface of the medium window (4) towards the rear surface of the medium window (4), and a second rectangular groove (412) and a fourth rectangular groove (414) are provided on the rear surface of the medium window (4) towards the front surface of the medium window (4); a rectangular plate is filled in each of the first rectangular groove (411), the second rectangular groove (412), the third rectangular groove (413), and the fourth rectangular groove (414), and the four rectangular plates are the first rectangular plate (421), the second rectangular plate (422), the third rectangular plate (423), and the fourth rectangular plate (424); the front surface of the medium window (4) towards the rear surface of the medium window (411) and the rear surface of the medium window (413) are provided in the rear surface of the medium window (413) towards the front surface of the medium window (413); a rectangular plate is provided in each of the first rectangular groove (411), the second rectangular groove (412), the third rectangular groove (413), and the fourth rectangular groove (414), and the four rectangular plates are the first rectangular plate (421), the second rectangular plate (422), the third rectangular plate (423), and the fourth rectangular plate (424); the front surface of the medium window (411) and the rear surface of the medium window (413) are provided in the rear surface of the medium window (413) towards the rear surface of the medium window (413). A left rectangular through slot (431) and a right rectangular through slot (432) are opened on the rear surface. A fifth rectangular plate (425) is filled from the front surface of the left rectangular through slot (431) to the rear surface, a sixth rectangular plate (426) is filled from the rear surface of the left rectangular through slot (431) to the front surface, a seventh rectangular plate (427) is filled from the front surface of the right rectangular through slot (432) to the rear surface, and an eighth rectangular plate (428) is filled from the rear surface of the right rectangular through slot (432) to the front surface. The front end face of the medium window (4) is between the left rectangular through slot (431) and the right rectangular through slot (432), and N5 triangular prism slots (44) are opened from left to right. The upper end face of the triangular prism slot (44) coincides with the lower surface of the first rectangular groove (411), and the lower end face of the triangular prism slot (44) coincides with the upper surface of the third rectangular groove (413). The upper end face of the triangular prism slot (44) is an equilateral triangle. Furthermore, the medium window (4) has rectangular slots, and each rectangular slot is filled with two rectangular plates; The separating waveguide (5) consists of a connecting plate (51) and a separating plate (52); the connecting plate (51) is a cuboid plate, and the separating plate (52) consists of a separating upper plate (521) and a separating main plate (522); The partition plate (52) is a cuboid plate. The upper surfaces of the connecting plate (51) and the partition plate (52) are on the same horizontal plane. The rear surface of the connecting plate (51) is welded to the front surface of the partition plate (52). The partition plate (52) is composed of a partition upper plate (521) and a partition main plate (522), wherein the partition upper plate (521) is welded to the upper surface of the partition main plate (522); the partition upper plate (521) is a cuboid plate, and a series of through holes (5211) are opened from the upper surface of the partition upper plate (521) to the lower surface, and the through holes (5211) are staggered from the left end to the right end of the partition upper plate (521); A first rectangular through slot (511) is opened from the front surface to the rear surface of the connecting plate (51); The partition panel (522) is a cuboid panel, and the partition panel (522) has alternating large grooves (5221) and small grooves (5222) from the top surface to the bottom surface. The flange (6) consists of a flange base plate (61), a flange middle plate (62), and a flange top plate (63). The flange base plate (61) is welded to the flange middle plate (62), and the flange middle plate (62) is welded to the flange top plate (63). The center points of the flange base plate (61), flange middle plate (62), and flange top plate (63) coincide. A second rectangular through groove (611) is opened on the lower surface of the flange base plate (61). The curved waveguide (7) is composed of vertical waveguides (71) and horizontal waveguides (72) that are perpendicular to each other; the vertical waveguide (71) is a cuboid plate, the horizontal waveguide (72) is a cuboid plate, the lower surface of the vertical waveguide (71) has a fifth rectangular through slot (711), and the front surface of the horizontal waveguide (72) has a sixth rectangular through slot (721). The flange base plate (61) of the flange (6) is welded to the partition plate (52) of the partition waveguide (5). Each flange (6) corresponds to a through hole (5211). The center point of the second rectangular through slot (611) coincides with the center point of the through hole (5211). The distance between adjacent flanges (6) is 0. The vertical waveguides (71) of N curved waveguides (7) are respectively inserted into the fourth rectangular through slots (631) of the upper plates (63) of N flanges. The rectangular waveguide slot antenna (101) with dielectric cover consists of dielectric cover (8), slotted waveguide (9), support column (10), and support rod (201). The dielectric cover (8) completely covers the slotted waveguide (9). The support column (10) and support rod (201) are located between the dielectric cover (8) and the slotted waveguide (9). One end of the opening of the dielectric cover (8) is connected to the curved waveguide (7) as the input port of the high-power waveguide slot array antenna with dielectric cover, and the other end is a closed structure. The dielectric cover (8) consists of a front cover (81), a main cover (82), and a rear cover (83). The front cover (81) is located on the front end face of the main cover (82), and the rear cover (83) is located on the rear end face of the main cover (82). The front cover (81) and the rear cover (83) seal the main cover (82). The dielectric cover (8) is a sealed structure. After the dielectric cover (8) is evacuated, it is filled with sulfur hexachloride gas. The slotted waveguide (9) is connected to the front cover (81) by rivets; The slotted waveguide (9) consists of three parts: a rectangular base plate (91), two rectangular middle plates (92), and a rectangular top plate (93); the rectangular base plate (91), the two rectangular middle plates (92), and the rectangular top plate (93) together form a rectangular channel (94); the support columns (10) are cylindrical, and there are N6 of them; the N6 support columns (10) are distributed along the central axis XX' direction and are fixed to the upper surface of the rectangular top plate (93) with screws; The main cover (82) consists of three parts: a rectangular bottom cover plate (821), two rectangular middle cover plates (822), and a rectangular top cover plate (823). The rectangular bottom cover plate (821), the two rectangular middle cover plates (822), and the rectangular top cover plate (823) are all cuboid plates. The rectangular bottom cover plate (821) is symmetrically welded to the lower surface of the rectangular bottom plate (91) about the XX' axis. The two rectangular middle cover plates (822) are symmetrically welded to the left and right ends of the upper surface of the rectangular bottom cover plate (821) about the central axis XX'. The rectangular top cover plate (823) is laid flat and welded to the upper surface of the two rectangular middle cover plates (822). The front cover (81) is a convex metal cuboid with four rectangular grooves that are interconnected. There is a rectangular through slot (815) in the front cover (81) that connects to the rectangular channel (94). The end face of the front cover (81) away from X is fixedly connected to the end face of the rectangular bottom cover plate (821), the rectangular middle cover plate (822), and the rectangular upper cover plate (823) of the main cover (82) near X. The front surface of the front cover (81) is welded to the front surface of the horizontal waveguide (72) in the curved waveguide (7). The rear cover (83) is a convex metal cuboid with four rectangular grooves that are interconnected. The end face of the rear cover (83) away from X' is fixedly connected to the end face of the main cover (82) near X'. The support rod (201) is a cuboid, located between the rectangular middle plate (92) and the rectangular middle cover plate (822), and is fixed to the rectangular middle plate (92) with screws; there are a total of N7 support rods (201), which are divided into two columns, with the number of rods in each column equal to N7 / 2, and are symmetrically distributed on the left and right sides of the rectangular middle plate (92) along the central axis XX' direction, where N7 is a positive even number; The slotted waveguide (9) will radiate the microwaves received in the bent waveguide (7); The power divider body (1), welding cover (2), separating waveguide (5), flange (6) and bending waveguide (7) in the vacuum window sealed power divider (100) are made of metal materials, and the sealing plate (3) and dielectric window (4) are made of 30% glass fiber PEEK material; the dielectric cover (8), support column (10) and support rod (201) in the rectangular waveguide slot antenna (101) with dielectric cover are made of fiberglass material, and the slotted waveguide (9) is made of metal material. The 30% is the mass percentage.

2. The high-power microwave waveguide slot antenna array as described in claim 1, characterized in that... The power distribution filler (11) is located between the upper plate (133), the welding cover (2) and the bottom plate (131) of the outer shell, and its outer side wall is wrapped by the middle plate (132) of the outer shell; the first-level power distribution channel (121) in the power distribution channel (12) dug in the power distribution filler (11) is an axisymmetric structure, consisting of N1 first-level T-shaped power distribution cavities (1211) and N1 first-level trapezoidal bodies (1212). Each first-level T-shaped power distribution cavity (1211) contains a first-level trapezoidal body (1212). The first-level T-shaped power distribution cavity (1211) is formed by the perpendicular intersection of a horizontal rectangular cavity parallel to the OO' axis and a vertical rectangular cavity parallel to the PP' axis; each first-level T-shaped power distribution cavity (1211) contains a first-level trapezoidal body (1212), and the first-level trapezoidal body (1212) is an isosceles trapezoidal body; The secondary power distribution channel (122) in the power distribution channel (12) is an axisymmetric structure, consisting of N2 secondary T-shaped power distribution cavities (1221) and N2 secondary trapezoidal bodies (1222). Each secondary T-shaped power distribution cavity (1221) contains a secondary trapezoidal body (1222). The secondary T-shaped power distribution cavity (1221) is formed by the perpendicular intersection of a horizontal rectangular cavity parallel to the OO' axis and a vertical rectangular cavity parallel to the PP' axis. Two adjacent secondary T-shaped power distribution cavities (1221) are arranged in an axisymmetric manner. Each secondary T-shaped power distribution cavity (1221) contains a secondary trapezoidal body (1222), and two adjacent secondary trapezoidal bodies (1222) are arranged in an axisymmetric manner. The three-stage power distribution channel (123) in the power distribution channel (12) is an axisymmetric structure, consisting of N3 three-stage T-shaped power distribution cavities (1231) and N3 three-stage trapezoidal bodies (1232). Each three-stage T-shaped power distribution cavity (1231) contains a three-stage trapezoidal body (1232). The three-stage T-shaped power distribution cavity (1231) is formed by the perpendicular intersection of a rectangular cavity in the transverse part parallel to the OO' axis and a rectangular cavity in the longitudinal part parallel to the PP' axis. Two adjacent three-stage T-shaped power distribution cavities (1231) are arranged in an axisymmetric manner. Each three-stage T-shaped power distribution cavity (1231) contains a three-stage trapezoidal body (1232). The three-stage trapezoidal body (1232) is an isosceles trapezoidal body. Two adjacent three-stage trapezoidal bodies (1232) are arranged in an axisymmetric manner. The four-stage power distribution channel (124) in the power distribution channel (12) is an axisymmetric structure, consisting of N4 four-stage T-shaped power distribution cavities (1241) and N4 four-stage capsule cylinders (1242). Each four-stage T-shaped power distribution cavity (1241) contains one four-stage capsule cylinder (1242). The four-stage T-shaped power distribution cavity (1241) is formed by the perpendicular intersection of a rectangular cavity in the transverse part parallel to the OO' axis and a rectangular cavity in the longitudinal part parallel to the PP' axis. The transverse parts of two adjacent four-stage T-shaped power distribution cavities (1241) are interconnected, except for the closest distance to the left longitudinal middle plate (1324) and the closest distance to the right longitudinal plate. Apart from the two nearest four-stage T-shaped power distribution cavities (1241) of the middle plate (1325), the other two adjacent four-stage T-shaped power distribution cavities (1241) are arranged axially symmetrically; each four-stage T-shaped power distribution cavity (1241) has a four-stage capsule column (1242); the horizontal distance between adjacent four-stage capsule columns (1242) is equal; the lateral part of each four-stage T-shaped power distribution cavity (1241) is separated by the four-stage capsule column (1242) located therein, forming two interconnected channels, which serve as output ports during power distribution; the N4 T-shaped power distribution cavities (1241) have a total of N output ports.

3. The high-power microwave waveguide slot antenna array as described in claim 1, characterized in that... The outer shell middle plate (132) is formed by a transverse middle plate (1321), a left-inclined middle plate (1322) and a right-inclined middle plate (1323) symmetrical about the OO' axis, and a left-longitudinal middle plate (1324) and a right-longitudinal middle plate (1325) symmetrical about the OO' axis. The transverse middle plate (1321), the left-inclined middle plate (1322), the right-inclined middle plate (1323), the left-longitudinal middle plate (1324), and the right-longitudinal middle plate (1325) are all cuboid plates. The transverse middle plate (1321) is welded to the front surface of the outer shell bottom plate (131). The left-longitudinal middle plate... (1324) is welded to the left surface of the bottom plate (131) of the outer shell, and the right longitudinal middle plate (1325) is welded to the right surface of the bottom plate (131) of the outer shell; the left end face of the transverse middle plate (1321) is welded to the right end face of the left inclined middle plate (1322), the right end face of the transverse middle plate (1321) is welded to the left end face of the right inclined middle plate (1323), the left end face of the left inclined middle plate (1322) is welded to the front end face of the left longitudinal middle plate (1324), and the right end face of the right inclined middle plate (1323) is welded to the front end face of the right longitudinal middle plate (1325).

4. The high-power microwave waveguide slot antenna array as described in claim 1, characterized in that... The bottom plate (131) of the outer shell has a first groove (1311) vertically downward from the upper surface, and the upper plate (133) of the outer shell has a second groove (1331) vertically upward from the lower surface. The first groove (1311) and the second groove (1331) are both cuboid cavities. The first groove (1311) and the second groove (1331) are both symmetrical about the OO' axis. The rear end face of the upper plate (133) of the outer shell is flush with the rear end face of the power distribution filler (11).

5. The high-power microwave waveguide slot antenna array as described in claim 1, characterized in that... The width d of the through hole (1341) and the height h4 of the through hole (1341) are required to satisfy that the rectangular waveguide TE 10 mode microwaves perform power synthesis and distribution in each stage of the T-type power divider cavity, that is, λ0 / 2 < h4 < λ0 and d < λ0 / 2 are satisfied, where λ0 is the wavelength in free space.

6. The high-power microwave waveguide slot antenna array as described in claim 2, characterized in that... The acute interior angle θ2 formed by the long side of the first trapezoid body (1212) and the waist, the acute interior angle θ3 formed by the long side of the second trapezoid body (1222) and the waist, and the acute interior angle θ4 formed by the long side of the third trapezoid body (1232) and the waist satisfy θ2 < θ3 < θ4.

7. The high-power microwave waveguide slot antenna array as described in claim 2, characterized in that... N = N4 * 2; N4 = N3 * 2; N3 = N2 * 2; N2 = N1 * 2.

8. The high-power microwave waveguide slot antenna array as described in claim 1, characterized in that... The flange bottom plate (61), the flange middle plate (62), and the flange upper plate (63) are all rectangular plates. Rectangular through grooves are opened at the centers of the flange bottom plate (61), the flange middle plate (62), and the flange upper plate (63). The lower surfaces of the flange bottom plates (61) of N flanges (6) are welded to the upper surface of the partition plate (52). The second rectangular through grooves (611) at the centers of the flange bottom plates (61) of N flanges (6) are respectively communicated with the through holes (5211); The vertical waveguide (71) is inserted into the fourth rectangular through groove (631) at the center of the flange upper plate (63) and fixed.

9. The high-power microwave waveguide slot antenna array as described in claim 1, characterized in that... The lower surfaces of the two rectangular middle plates (92) in the slotted waveguide (9) are welded to the left and right ends of the upper surface of the rectangular bottom plate (91); The lower surface of the rectangular upper plate (93) is tiled and welded to the upper surfaces of the two rectangular middle plates (92); The rectangular bottom plate (91), the two rectangular middle plates (92), and the rectangular upper plate (93) jointly enclose a rectangular channel (94); The rectangular upper plate (93) is provided with waveguide slots (95) along the ZZ' direction; The waveguide slots (95) are rectangular, with a total of K, and the included angle with the YY' axis is θ5. On the rectangular upper plate (93), starting from the right end of the waveguide slot (95) closest to the point X, it deflects θ5 away from the X direction, and the next waveguide slot (95) deflects θ5 closer to the X direction, and they are arranged staggeredly on the rectangular upper plate (93); The waveguide slots (95) are grooved from the upper surface of the rectangular upper plate (93) towards the direction close to the rectangular bottom plate (91), and the waveguide slots (95) communicate the upper surface of the rectangular upper plate (93) and the rectangular channel (94); The rectangular through groove (815) is communicated with the sixth rectangular through groove (721); The upper surface of the sixth rectangular through groove (721) and the upper surface of the rectangular through groove (815) are on the same horizontal plane. The lower surface of the sixth rectangular through groove (721) and the lower surface of the rectangular through groove (815) are on the same horizontal plane. The left surface of the sixth rectangular through groove (721) and the left surface of the rectangular through groove (815) are on the same vertical plane. The right surface of the sixth rectangular through groove (721) and the right surface of the rectangular through groove (815) are on the same vertical plane.

10. The high-power microwave waveguide slot antenna array as described in claim 1, characterized in that... The width a41 and height h24 of the slotted waveguide (9) need to satisfy the transmission of the TE 10 mode therein, that is, a41 < λ0 / 2 and λ0 / 2 < h24 < λ0, where λ0 is the wavelength in free space.

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