High power microwave vacuum window sealed power divider

Abstract

This invention discloses a high-power microwave vacuum window sealed power divider, aiming to solve the problem that existing power microwave power dividers cannot perform power distribution and combining at extreme temperatures. The invention consists of a power divider body, a welding cover, a sealing plate, and a dielectric window. 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. The power divider body consists of a power divider filler, power divider channels, and a main body shell. The main body shell wraps around the power divider filler, which is located between the welding cover and the main body shell. Four interconnected power divider channels are carved into the power divider filler. The first three power divider channels are composed of T-shaped power divider cavities and trapezoidal bodies, while the last power divider channel is composed of a T-shaped power divider cavity and a capsule-shaped column. The dielectric window is a cuboid cavity with eight grooves, each filled with a rectangular plate. This invention features a tightly packed arrangement, enabling power distribution and combining at temperatures ranging from -50°C to 50°C, resulting in high power capacity.

Description

Technical Field

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

[0002] High-power microwaves (HPM) generally refer to strong electromagnetic radiation with frequencies between 300MHz and 300GHz, peak power greater than 100MW, or average power greater than 1MW. Power dividers, acting as a bridge between high-power microwave transmission and antenna arrays, are crucial components for power distribution and combining. Ensuring the compactness and environmental adaptability of power dividers has become a pressing challenge for researchers.

[0003] High-power microwave power dividers (HPMs) utilize phase modulation and electromagnetic field coupling to coherently combine microwave signals generated by multiple independent HPM system units within a waveguide power combiner, representing a key technological approach to achieving gigawatt (GW) level microwave power output. Rectangular waveguide T-structure multi-stage cascaded power dividers / combiners are widely used in the HPM field due to their advantages such as high stability, low insertion loss, good balance, wide bandwidth, and ability to handle high power. However, current rectangular waveguide T-structure multi-stage cascaded power dividers / combiners are mostly array-based, resulting in large volumes (array arrangements are generally considered to occupy significant space), limiting their use in scenarios with strict size requirements. Furthermore, their large size makes them unsuitable for use at high altitudes or in vacuums. Therefore, no published literature has investigated the power distribution and combining performance of such rectangular waveguide T-structure multi-stage cascaded power dividers / combiners at extreme temperatures (-50°C and 50°C). HPM systems 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 the application environments of high-power microwave power dividers are diverse. Therefore, achieving a tight arrangement of high-power microwave power dividers and ensuring that power distribution and combining can still be performed in extreme temperatures is of great application value for the development of high-power microwave systems. Summary of the Invention

[0004] The technical problem to be solved by this invention is that it is currently impossible to achieve a tight arrangement of power microwave power dividers while ensuring power distribution and synthesis at extreme temperatures. The invention provides a novel high-power microwave vacuum window sealed power divider with a compact structure, which can solve the problems of the difficulty in applying high-power microwave power dividers at low temperatures of -50°C and high temperatures of 50°C, as well as their large size.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] This invention comprises a power divider body, a welding cover, a sealing plate, and a dielectric window. The end of the invention 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. When performing power division, the power divider body has one input port connected to a microwave source module to receive the microwaves to be power-divided output from the microwave source module. The power divider body has N output ports, namely the 1st output port, the 2nd output port, ..., the nth output port, ..., the Nth output port, which are connected to the dielectric window, which is externally connected to an antenna transmission system. When implementing the power combining function, the N output ports on the main body of the power divider of this invention become input ports, namely the first input port, the second input port, ..., the nth input port, ..., the Nth input port, which are connected to the medium window. The medium window is externally connected to N microwave source modules to receive the microwaves to be combined from the microwave source modules. The input ports on the main body of the power divider of this invention become output ports and are externally connected to the antenna transmission system. N is a positive integer, equal to the number of power divisions to be achieved, and is generally an even number (for example, if the power divider needs to divide 1 into 16, N equals 16; if the power divider needs to divide 1 into 32, N equals 32). For ease of description, the description follows the power distribution process. Along the input-to-output direction, draw a central axis OO' on the upper surface of the sealing plate. Point O is on the input end face of this invention, and point O' is on the medium window. This invention is symmetrical about the central axis OO'. Draw a horizontal axis PP' 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. Let the end closer to the central axis OO' in the vertical direction be the upper end, and the end farther from the central axis OO' be the lower end. Along the central axis OO', the end closer to point O is the front end, and the end closer to point O' is 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.If the input ports of the power divider body receive microwaves from the microwave source module, the power divider body will distribute the microwaves with equal power. If the N input ports of the power divider body near O' receive microwaves from the N microwave source modules via the medium window, the power divider body will combine the input microwaves. The welding cover is a cuboid plate with chamfered ends on the front surface, the chamfered ends of the front surface matching 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 the front surface, using 3... Made of 0% glass fiber PEEK material, 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 of the upper surface of the power divider body by the welding cover, thereby further reducing microwave leakage in the power divider body; the dielectric window is connected to the N output ports of the power divider body, and its function is to send the N groups of microwaves received from the N output ports of the power divider body to the N external antenna transmission systems during power division, and to transmit the microwaves received from the N microwave source modules to the N output ports of the power divider body during synthesis, and to ensure airtightness at high and low temperatures, thereby ensuring the normal use of the invention at high and low temperatures.

[0007] 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.

[0008] The power divider body is made of metal and consists of a power divider filler and a main body shell. The main body shell wraps around the power divider filler, which is located between the welded cover and the main body shell. Power divider channels are cut out in the power divider filler. According to their functions, the power divider channels can be divided into primary power divider channels, secondary power divider channels, tertiary power divider channels, and quaternary power divider channels. The primary, secondary, tertiary, and quaternary power divider channels are arranged sequentially from O to O' and are interconnected.

[0009] The main outer shell consists of four parts: a bottom plate, a middle plate, a top plate, and a waveguide port. The top plate is closest to OO', and the upper surface of the middle plate is welded to the lower surface of the top plate. The bottom plate is furthest from OO', and its upper surface 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 with a width of a3, a length of b1, and a height of h1. It has an axisymmetric structure, and the left and right ends of the front surface of the bottom plate are chamfered with an angle of θ1 and a chamfer dimension of c1. The chamfered face of the bottom plate (i.e., the inclined chamfered face formed by the chamfer) is rounded at the left and right ends of the front surface of the bottom plate, with a chamfer radius of r1; the chamfered face on the left end of the bottom plate is rounded at the end of the bottom plate, with a chamfer radius of r1; the chamfered face on the right end of the bottom plate is rounded at the end of the bottom plate, with a chamfer radius of r1.

[0010] 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 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. 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 left surface of the middle plate 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.

[0011] 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 distribution infill is a rectangular plate made of metallic material. The width of the power distribution infill is a3, the length is b1, and the height is h4. The power distribution infill has an axisymmetric structure. Both ends of the front surface of the power distribution infill are chamfered, with a chamfer angle of θ1 and a chamfer radius of c1. The lower surface of the power distribution infill is welded to the upper surface of the bottom plate of the outer shell. The front surface of the power distribution infill is welded to the rear surface of the transverse middle plate. The chamfered surface at the left end of the front surface of the power distribution infill is welded to the right surface of the left-inclined middle plate, and the chamfered surface at the right end of the front surface of the power distribution infill is welded to the left surface of the right-inclined middle plate. Except for possible differences in height, the lower surface of the power distributor infill is identical in shape to the upper surface of the outer shell base plate. The lower surface of the power distributor infill is welded to the upper surface of the outer shell base plate. The chamfered left end of the front surface of the power distributor 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 distributor infill is welded to the left surface of the right inclined middle plate. The left end face of the power distributor infill is welded to the right surface of the left longitudinal middle plate, and the right end face of the power distributor 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 distributor infill, and the lower surface of the outer shell top plate is welded to the upper surface of the power distributor infill. The front end face of the welding cover is flush with the front end face of the power distributor infill, and the lower surface of the welding cover is welded to the upper surface of the power distributor infill. Except for possible differences in height, the lower surface of the power distributor infill is identical in shape to 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 bottom plate of the outer shell, and the power distributor infill is surrounded by the transverse middle plate, the left inclined middle plate, the right inclined middle plate, the left longitudinal middle plate, and the right longitudinal middle plate. The upper surface of the power distributor infill is wrapped by the upper plate of the outer shell and the welding cover.

[0012] The primary power distribution channel has 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 trapezoidal body. The trapezoidal body is located within the power distribution channel carved out by the power distribution 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 portion of the lower bottom surface of the power distribution 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 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.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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 is exactly the same shape as the welding cover. The lower surface of the sealing plate is fixed to the upper surface of the welding cover with screws.

[0018] 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.

[0019] The RR' plane coincides with the front surface of the first rectangular groove. A left rectangular through-slot, with a depth equal to b15, is opened on the front surface of the medium window at a distance s6 from the left end face of the medium window, pointing towards the rear surface of the medium window. The left rectangular through-slot is a cuboid with a width equal to s3 and a height of h11. The top and bottom ends of the left rectangular through-slot are rounded with a cuboid radius of r12. A fifth rectangular plate, a metal cuboid with a width equal to s3, a length equal to b16, and a height equal to h11, is filled from the front surface of the left rectangular through-slot towards the rear surface. The fifth rectangular plate has rounded corners at both ends with a cuboid radius of r12. A sixth rectangular plate, a metal cuboid with a width equal to s3, a length equal to b16, and a height equal to h11, is filled from the rear surface of the left rectangular through-slot towards the front surface. The sixth rectangular plate has rounded corners at both ends 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. The front face of the dielectric window has N5 triangular prism slots sequentially opened from left to right between the left and right rectangular through slots. 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. During power combining, the rear surface of the dielectric window is connected to N microwave source modules; during power distribution, the rear surface of the dielectric window is connected to N antenna transmitting systems.

[0020] For ease of explanation, the conditions that the structural parameters of the above designs must meet will be introduced here:

[0021] 1. The width of the longitudinal section of each T-type power divider cavity is equal to the width d of the through-hole, and the height is equal to the height h4 of the through-hole. This must satisfy the requirements of the rectangular waveguide TE. 10The mode microwave performs power synthesis and distribution therein, that is, it satisfies λ0 / 2 < h4 < λ0, d < λ0 / 2, where λ0 is the wavelength in free space. The widths of the longitudinal parts of each level of T-shaped power divider cavities are kept consistent, all equal to d. The lengths of the transverse parts of the first-level T-shaped power divider cavity, the lengths of the transverse parts of the second-level T-shaped power divider cavity, the lengths of the transverse parts of the third-level T-shaped power divider cavity, and the widths of the through holes in the waveguide mouths are all equal, all equal to the width d of the longitudinal part of each level of T-shaped power divider cavity;

[0022] 2. In order to match the impedance and reduce reflection, there is an isosceles trapezoid structure in each power division channel. Among them, the first-level power division channel, the second-level power division channel, and the third-level power division channel are all isosceles trapezoid structures. As the number of levels increases, the acute interior angles of the isosceles trapezoid surfaces of the isosceles trapezoids in the power division channels gradually increase. That is, the acute interior angle θ2 of the first-level trapezoid, the acute interior angle θ3 of the second-level trapezoid, and the acute interior angle θ4 of the third-level trapezoid satisfy θ2 < θ3 < θ4.

[0023] 3. After determining the width d of the longitudinal portion of each level of the T-shaped power divider, first determine the width a31 of the transverse portion of the fourth-level T-shaped power divider. To meet the conditions for lossless microwave transmission and reduce reflection, the width a31 of the transverse portion of the fourth-level T-shaped power divider, the distance a32 from the left end face of the fourth-level capsule cylinder to the left end face of the fourth-level T-shaped power divider, the chamfer radius r9 at both ends of the fourth-level capsule cylinder, and the width a33 of the fourth-level capsule cylinder should satisfy a31=r9+d+a33+d+r9, a32=d+r9. Based on the number N4 of the fourth-level T-shaped power dividers, the width a3 of the power divider filler can be obtained. The width a3 of the power divider filler, the number N4 of the fourth-level T-shaped power dividers, the width a31 of the transverse portion of the fourth-level T-shaped power divider, and the horizontal distance s4 from the left end face of the transverse portion of the fourth-level T-shaped power divider closest to the left longitudinal middle plate to the right end face of the left longitudinal middle plate satisfy a3=s4+N4*a31+s4. After determining the shape and position of the four-stage T-shaped power divider, the position of the transverse portion of the three-stage T-shaped power divider is also determined, since its longitudinal portion is connected to the transverse portion of the three-stage T-shaped power divider. The three-stage trapezoidal body divides the transverse portion of the three-stage T-shaped power divider into two channels, which are connected to the longitudinal portions of two adjacent four-stage T-shaped power dividers. Normally, the width of these two channels should also be d. However, to meet the requirements of lossless microwave transmission and reduce reflection, the parameters of the three-stage trapezoidal body are optimized, and the width of these two channels will deviate slightly from d. Next, the parameters of the two-stage T-shaped power divider, the two-stage trapezoidal body, the one-stage T-shaped power divider, and the one-stage trapezoidal body are determined in the same way. The following are the dimensions of the first-stage T-shaped power distribution chamber: length b5 (longitudinal section), width a1 (lateral section), horizontal distance a6 (left end face of the lateral section of the first-stage T-shaped power distribution chamber to the right surface of the left-inclined middle plate), horizontal distance a10 (left end face of the longitudinal section of the first-stage T-shaped power distribution chamber to the left end face of the lateral section of the first-stage T-shaped power distribution chamber), length a7 (long side of the trapezoidal surface of the first-stage trapezoidal body), length a8 (short side of the trapezoidal surface), height b6 (height of the trapezoidal surface), angle θ2 (acute interior angle), distance a9 (left end of the rear end face of the first-stage trapezoidal body to the left end of the lateral section of the first-stage T-shaped power distribution chamber), length b7 (longitudinal section of the second-stage T-shaped power distribution chamber), width a11 (lateral section of the second-stage T-shaped power distribution chamber), and distance from the left end face of the longitudinal section of the second-stage T-shaped power distribution chamber closest to the left-inclined middle plate to the right surface of the second-stage T-shaped power distribution chamber. The horizontal distance a12 from the left end face of the transverse section of the secondary T-shaped power distribution cavity; the horizontal distance a13 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; the horizontal distance a14 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; the horizontal distance a15 between the right end face of the transverse section of the secondary T-shaped power distribution cavity and the left end face of the transverse section of the adjacent secondary T-shaped power distribution cavity on the right; the length of the long side of the isosceles trapezoidal surface of the secondary trapezoidal body; the length of the short side of the isosceles trapezoidal surface; the height b of the trapezoidal surface; the angle θ3 of the acute interior angle; the distance a18 from the left end of the rear end face of the secondary trapezoidal body closest to the left-inclined middle plate to the left end face of the transverse section of the secondary T-shaped power distribution cavity.The following distances are considered in the calculation: a19: distance from the right end of the rear end face of the second-stage trapezoid closest to the left-tilted middle plate to the right end face of the transverse portion of the second-stage T-shaped power distribution cavity; a20: horizontal distance between the right end of the rear end face of the second-stage trapezoid and the left end of the rear end face of the adjacent second-stage trapezoid on the right; a21: width of the transverse portion of the third-stage T-shaped power distribution cavity 1231; a22: horizontal distance from the left end face of the longitudinal portion of the third-stage T-shaped power distribution cavity closest to the left-tilted middle plate to the left end face of the transverse portion of the third-stage T-shaped power distribution cavity. The horizontal distance a23 from the right end face of the transverse section; the horizontal distance a24 from the left end face of the transverse section 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; the horizontal distance a25 between the right end face of the transverse section of the three-stage T-shaped power distribution cavity and the left end face of the transverse section of the adjacent three-stage T-shaped power distribution cavity on the right; the length of the long side of the isosceles trapezoidal surface of the three-stage trapezoidal body a26; the length of the short side of the isosceles trapezoidal surface a27; the height b9 of the isosceles trapezoidal surface; the angle θ4 of the acute interior angle; the distance from the left end face of the rear end face of the three-stage trapezoidal body closest to the left inclined middle plate to the left end face of the three-stage trapezoidal body. The distance a28 from the left end face of the transverse section of the three-stage T-shaped power distribution cavity; the distance a29 from the right end of the rear end face of the three-stage trapezoidal body 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; the horizontal distance a30 between the right end of the rear end face of the three-stage trapezoidal body and the left end of the rear end face of the adjacent three-stage trapezoidal body on the right; the width a31 of the transverse section of the four-stage T-shaped power distribution cavity; the length b10; the length b11 of the longitudinal section of the four-stage T-shaped power distribution cavity; the horizontal distance c4 from the left end face of the longitudinal section of the four-stage T-shaped power distribution cavity to the left end face of the transverse section of the four-stage T-shaped power distribution cavity. The horizontal distance s4 from the left end face of the transverse portion of the fourth-stage T-shaped power divider closest to the left longitudinal middle plate to the right end face of the left longitudinal middle plate; the distance a32 from the left end face of the fourth-stage capsule cylinder to the left end face of the fourth-stage T-shaped power divider; the width a33 of the fourth-stage capsule cylinder; the length b12; the distance b13 from the front top of the fourth-stage capsule cylinder to the front end face of the longitudinal portion of the fourth-stage T-shaped power divider; and the horizontal distance a34 between the right end face of the fourth-stage capsule cylinder and the left end face of the adjacent fourth-stage capsule cylinder on the right side. The design needs to achieve a 1-to-2 power distribution while ensuring the rectangular waveguide TE... 10Microwave 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 transmission efficiency of the distributor / synthesizer 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.

[0024] 4. The chamfered angles at both ends of the horizontal section of each power divider channel are equal to the chamfered angles θ1 at both ends of the front surface of the bottom plate of the outer casing. The chamfer dimensions are: c2 for the first-stage T-type power divider cavity and the second-stage T-type power divider cavity; c3 for the third-stage T-type power divider cavity; c4 for the fourth-stage T-type power divider cavity; r1 for the chamfer radius at the connection between the right end face of the horizontal middle plate and the left end face of the right-inclined middle plate; r2 for the chamfer radius at the connection between the rear end face of the waveguide port and the horizontal middle plate; r3 for the chamfer radius at the connection between the front end face of the horizontal section of the first-stage T-type power divider cavity and the rear end face of the longitudinal section of the first-stage T-type power divider cavity; r4 for the chamfer radius at the connection between the chamfered angle of the first-stage T-type power divider cavity and the left end face of the horizontal section of the first-stage T-type power divider cavity; r5 for the chamfer radius at the connection between the inclined surface of the first-stage trapezoidal body and the front end face; r6 for the chamfer radius at the connection between the left inclined surface of the second-stage trapezoidal body and the front end face; and r7 for the chamfer radius at the connection between the front end face of the horizontal section of the third-stage T-type power divider cavity and the third-stage T-type power divider cavity. The chamfer radius r7 at the connection of the rear end face of the longitudinal section, the chamfer radius r8 at the connection of the front end face of the transverse section of the four-stage T-shaped power divider cavity with the rear end face of the longitudinal section of the four-stage T-shaped power divider cavity, the chamfer radius r9 at the intersection of the plane parallel to the left end face of the transverse section of the four-stage T-shaped power divider cavity and the plane with a distance of r9 from the left end face of the transverse section of the four-stage T-shaped power divider cavity with the left end face of the four-stage T-shaped power divider cavity, the chamfer radius r10 at the right end of the front end face of the longitudinal section of the four-stage T-shaped power divider cavity closest to the left longitudinal middle plate, the chamfer radius r11 at both ends of the lower surface of the first groove, and the chamfer radius r12 at both ends of the rectangular through slot all satisfy the microwave lossless transmission condition to reduce reflection. In addition, r6>r3>r11>r1>r9>r2>r10>r5>r7>r4>r8>r12, c1>c2>c4>c3, and θ1=45° in general. The chamfer radius at the connection between the right end face of the transverse middle plate and the left end face of the right inclined middle plate; the chamfer radius at the connection between the left end face of the transverse middle plate and the right end face of the left inclined middle plate; the chamfer radius at the connection between the left end face of the left inclined middle plate and the front end face of the left longitudinal middle plate; the chamfer radius at the connection between the right end face of the right inclined middle plate and the front end face of the right longitudinal middle plate; the chamfer radius at the connection between the left end face of the upper outer shell and the right end face of the left longitudinal middle plate away from O'; the chamfer radius at the connection between the front end face of the transverse part of the secondary T-shaped power distribution cavity and the rear end face of the longitudinal part of the secondary T-shaped power distribution cavity; the chamfer radius at both ends of the rear surface of the sealing plate; the chamfer radius at the connection between the chamfer angle of the sealing plate and the left and right ends of the front surface of the sealing plate; and the chamfer radius at the connection between the chamfer angle of the sealing plate and the left and right ends of the front surface of the sealing plate. The chamfer radii at the connection between the left chamfer of the sealing plate and the left end face of the sealing plate, the chamfer radii at the connection between the right chamfer of the sealing plate and the right end face of the sealing plate, the chamfer radii on the inner surface at the connection between the left end face of the transverse middle plate and the right end face of the left inclined middle plate, the chamfer radii on the inner surface at the connection between the right end face of the transverse middle plate and the left end face of the right inclined middle plate, the chamfer radii on the inner surface at the connection between the left end face of the left inclined middle plate and the front end face of the left longitudinal middle plate, and the chamfer radii on the inner surface at the connection between the right end face of the right inclined middle plate and the front end face of the right longitudinal middle plate are all equal to r1; the chamfer radii on the outer surface at the connection between the rear end face of the waveguide port and the front end face of the transverse middle plate, and the chamfer radii at both ends of the upper surface of the second groove are all equal to r2.The chamfer radii at both ends of the connection between the front end face of the transverse section and the rear end face of the longitudinal section of the first-stage T-shaped power distribution cavity; the chamfer radii at the end of the front end face of the longitudinal section of the second-stage T-shaped power distribution cavity closer to the left and right end faces of the transverse section; the chamfer radii at the end of the front end face of the longitudinal section of the third-stage T-shaped power distribution cavity closer to the left and right end faces of the transverse section; the chamfer radii at the connection between the left inclined surface and the front end face of the third-stage trapezoidal body; and the chamfer radii at the connection between the right inclined surface and the front end face of the third-stage trapezoidal body are all equal to r3. The chamfer radii at the connection between the left chamfer angle of the first-stage T-shaped power distribution cavity and the left end face of the transverse section, and the chamfer radii at the connection between the right chamfer angle of the first-stage T-shaped power distribution cavity and the right end face of the transverse section are all equal to r3. The following are examples of chamfer radii: chamfer radius at the junction of the first-stage T-shaped power distribution cavity chamfer angle and the front surface of the first-stage T-shaped power distribution cavity; chamfer radius at the junction of the rear end face of the first-stage trapezoidal body and the rear end face of the first-stage T-shaped power distribution cavity; chamfer radius at the junction of the left chamfer angle of the second-stage T-shaped power distribution cavity and the left end face of the second-stage T-shaped power distribution cavity; chamfer radius at the junction of the right chamfer angle of the second-stage T-shaped power distribution cavity and the right end face of the second-stage T-shaped power distribution cavity; chamfer radius at the junction of the chamfer angle of the second-stage T-shaped power distribution cavity and the front surface of the second-stage T-shaped power distribution cavity; chamfer radius at the junction of the rear end face of the second-stage trapezoidal body and the rear end face of the second-stage T-shaped power distribution cavity; chamfer radius at the junction of the left chamfer angle of the third-stage T-shaped power distribution cavity and the rear end face of the third-stage T-shaped power distribution cavity. The chamfer radius at the left end face connection, the chamfer radius at the connection between the right chamfer of the third-stage T-shaped power distribution cavity and the right end face of the transverse part of the third-stage T-shaped power distribution cavity, the chamfer radius at the connection between the chamfer of the third-stage T-shaped power distribution cavity and the two ends of the front surface of the transverse part of the third-stage T-shaped power distribution cavity, the chamfer radius at the connection between the rear end face of the third-stage trapezoidal body and the rear end face of the transverse part of the third-stage T-shaped power distribution cavity, the chamfer radius at the intersection of the rounded corner of the fourth-stage T-shaped power distribution cavity closest to the left longitudinal middle plate and the left longitudinal middle plate, and the chamfer radius at the intersection of the rounded corner of the fourth-stage T-shaped power distribution cavity closest to the right longitudinal middle plate and the right longitudinal middle plate are all equal to r4; the chamfer radius at the connection between the left inclined surface and the front end face of the first-stage trapezoidal body, and the chamfer radius at the connection between the right inclined surface and the front end face of the first-stage trapezoidal body are all equal to r4. The chamfer radius at the connection between the left inclined surface and the front end face of the second-stage trapezoid and the chamfer radius at the connection between the right inclined surface and the front end face of the second-stage trapezoid are the same, both equal to r6; the chamfer radius at the connection between the front end face of the transverse part of the third-stage T-shaped power distribution cavity and the rear end face of the longitudinal part of the third-stage T-shaped power distribution cavity, 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 and the left chamfer of the fourth-stage T-shaped power distribution cavity, and 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 and the right chamfer of the fourth-stage T-shaped power distribution cavity are the same, all equal to r7;The chamfer radius at the intersection of the plane parallel to the left end face of the transverse section of the fourth-stage T-shaped power distribution cavity and the left end face of the fourth-stage T-shaped power distribution cavity at a distance of r9, the chamfer radius at the intersection of the plane parallel to the right end face of the transverse section of the fourth-stage T-shaped power distribution cavity and the right end face of the fourth-stage T-shaped power distribution cavity at a distance of r9, and the chamfer radius at both ends of the fourth-stage capsule column are the same, all equal to r9; the chamfer radius at the right end of the front end face of the longitudinal section of the fourth-stage T-shaped power distribution cavity closest to the left longitudinal middle plate, and the chamfer radius at the intersection of the plane parallel to the right end face of the transverse section of the fourth-stage T-shaped power distribution cavity and the right end face of the fourth-stage T-shaped power distribution cavity at a distance of r9, are all equal to r9. The chamfer radius at the left end of the longitudinal section of the T-shaped power distribution cavity, the chamfer radius at the left end of the longitudinal section of the fourth-stage T-shaped power distribution cavity closest to the left longitudinal middle plate, and the chamfer radius at the right end of the longitudinal section of the fourth-stage T-shaped power distribution cavity closest to the right longitudinal middle plate are all the same, all equal to r10; the chamfer radii at the top and bottom ends of the left rectangular through slot, the fifth rectangular plate, the sixth rectangular plate, the right rectangular through slot, the seventh rectangular plate, and the eighth rectangular plate are all the same, all equal to r12.

[0025] 5. There are N4 four-stage T-type power dividers, and the relationship between them and the number of output ports N is N=N4*2; there are N3 three-stage T-type power dividers, and the relationship between them and the number of four-stage T-type power dividers N4 is N4=N3*2; there are N2 two-stage T-type power dividers, and the relationship between them and the number of three-stage T-type power dividers N3 is N3=N2*2; there are N1 one-stage T-type power dividers, and the relationship between them and the number of two-stage T-type power dividers N2 is N2=N1*2.

[0026] 6. The height of the bottom plate of the housing and the distance from the lower surface of the through hole to the lower surface of the waveguide opening are the same, all equal to h1; the height of the top plate of the housing and the distance from the upper surface of the through hole to the upper surface of the waveguide opening are the same, all equal to h2; the height of the transverse middle plate, the height of the left inclined middle plate, the height of the right inclined middle plate, the height of the left longitudinal middle plate, the height of the right longitudinal middle plate, the height of the waveguide opening, and the height of the dielectric window are the same, all equal to h3; the height of the through hole, the height of the power divider filler, the depth of the first-stage T-shaped power divider cavity, the height of the first-stage trapezoidal body, the depth of the second-stage T-shaped power divider cavity, the height of the second-stage trapezoidal body, the depth of the third-stage T-shaped power divider cavity, and the height of the third-stage trapezoidal body. The depth of the fourth-stage T-shaped power distribution cavity, the height of the fourth-stage capsule column, and the height of the triangular prism groove are all equal to h4; the depth of the second groove is equal to the height of the sealing plate, both equal to h6; the heights of the first, second, third, and fourth rectangular grooves, the first, second, third, and fourth rectangular plates are all equal to h9; the heights of the left rectangular through groove, the fifth rectangular plate, the sixth rectangular plate, the right rectangular through groove, the seventh rectangular plate, and the eighth rectangular plate are all equal to h11.

[0027] 7. The widths of the bottom plate, top plate, power distributor filler, welded cover, and sealing plate are all equal to a3; the widths of the first groove, second groove, first rectangular groove, second rectangular groove, third rectangular groove, fourth rectangular groove, first rectangular plate, second rectangular plate, third rectangular plate, and fourth rectangular plate 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 to the right surface of the left inclined middle plate, and the horizontal distance from the right end face of the transverse portion of the first-stage T-shaped power distributor cavity to the left surface of the right inclined middle plate are all equal to a6; the distance from the left end of the rear end face of the first-stage trapezoidal body to the left end of the transverse portion of the first-stage T-shaped power distributor cavity, and the horizontal distance from the left end face of the rear end face of the first-stage trapezoidal body to the left end of the transverse portion of the first-stage T-shaped power distributor cavity, and the horizontal distance from the right end face of the transverse portion of the first-stage trapezoidal body to the left end of the transverse portion of the first-stage trapezoidal body, and the horizontal distance from the left end face of the rear end face ... face of the rear end face of the first-stage trapezoidal body, and the horizontal distance from the left end face of the rear end face of the first-stage trapezoidal body to the left end face of the rear end face of the first-stage trapezoidal The distance from the right end of the rear end face of the structure to the right end of the transverse portion of the first-stage T-shaped power distribution cavity is 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 to the left end face of the transverse portion of the first-stage T-shaped power distribution cavity, and the horizontal distance from the right end face of the longitudinal portion of the first-stage T-shaped power distribution cavity to the right end face of the transverse portion of the first-stage T-shaped power distribution cavity, are the same, both equal to a10; the horizontal distance from the left end face of the transverse portion of the second-stage T-shaped power distribution cavity closest to the left inclined middle plate to the right surface of the left inclined middle plate, and the horizontal distance from the right end face of the transverse portion of the second-stage T-shaped power distribution cavity closest to the right inclined middle plate to the left surface of the right inclined middle plate, are the same, both equal to a14; the horizontal distance from the left end face of the transverse portion of the third-stage T-shaped power distribution cavity closest to the left inclined middle plate to the left end face of the left inclined middle plate, and the horizontal distance from the right inclined middle plate to the left surface of the right inclined middle plate, are the same, both equal to a14. The horizontal distance from the right end face of the transverse portion of the nearest third-stage T-shaped power distribution cavity to the right end face of the right-inclined middle plate is the same, both equal to a24; the distance from the left end face of the fourth-stage capsule column to the left end face of the fourth-stage T-shaped power distribution cavity, and the distance from the right end face of the fourth-stage capsule column to the right end face of the fourth-stage T-shaped power distribution cavity are the same, both equal to a32; the length of the outer shell bottom plate is the same as the length of the power distribution filler, both equal to b1; the length of the left longitudinal middle plate is the same as the length of the right longitudinal middle plate, both equal to b2; the length of the outer shell top plate is the same as the depth of the through hole, both equal to b3; the length of the longitudinal portion of the second-stage T-shaped power distribution cavity is the same as the length of the longitudinal portion of the third-stage T-shaped power distribution cavity, both equal to b7; the length of the welded cover is the same as the length of the sealing plate, both equal to b14; the length of the medium window, the left rectangle The depth of the through slot and the depth of the right rectangular through slot are the same, both equal to b15; the lengths of the fifth rectangular plate, the sixth rectangular plate, the seventh rectangular plate, and the eighth rectangular plate are the same, all equal to b16; the thicknesses of the transverse middle plate, the left inclined middle plate, the right inclined middle plate, the left longitudinal middle plate, the right longitudinal middle plate, the distance from the rear end face of the first groove to the rear end face of the bottom plate of the outer shell, and the distance from the rear surface of the second groove to the rear surface of the upper plate of the outer shell are the same, all equal to s1; the distances from the left end face of the first groove to the left surface of the left longitudinal middle plate, the distance from the right end face of the first groove to the right surface of the right longitudinal middle plate, the distance from the left end face of the second groove to the left surface of the left longitudinal middle plate, and the distance from the right end face of the second groove to the right surface of the right longitudinal middle plate are the same, all equal to s2;The lengths of the first groove, the second groove, the left rectangular through slot, the right rectangular through slot, the fifth rectangular plate, the sixth rectangular plate, the seventh rectangular plate, and the eighth rectangular plate are all equal to s3; the horizontal distances from the left end face of the transverse portion of the fourth-stage T-shaped power divider closest to the left longitudinal center plate to the right end face of the left longitudinal center plate, and the horizontal distances from the right end face of the transverse portion of the fourth-stage T-shaped power divider closest to the right longitudinal center plate to the left end face of the right longitudinal center plate are all equal to s4; the depths of the first rectangular groove, the second rectangular groove, the third rectangular groove, the fourth rectangular groove, the lengths of the first rectangular plate, the second rectangular plate, the third rectangular plate, and the fourth rectangular plate are all equal to s5.

[0028] Using 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 distributor / combiner 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.

[0029] The working process of this invention is divided into power distribution and power synthesis:

[0030] The working process of this invention is as follows:

[0031] The power distribution process is as follows: During power distribution, the through-hole in the waveguide port of the power divider body of this invention serves as the input port, and the rectangular waveguide TE... 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 mode microwave propagates from the N output ports of the power divider body through the rectangle formed by the first, third, fifth, and seventh rectangular plates in the medium window, and then through the rectangle formed by the second, fourth, sixth, and eighth rectangular plates in the medium window, and is output to the N antenna transmission systems, thereby realizing the power distribution of N waveguides.

[0032] The power combining process is the reverse operation of the power distribution process. Specifically, during power combining, the N ports on the rear end face of the power divider body of this invention serve as input ports. The microwaves output from the N microwave source modules first pass through the rectangle formed by the second, fourth, sixth, and eighth rectangular plates in the medium window of this invention, and then through the rectangle formed by the first, third, fifth, and seventh rectangular plates in the medium window of this invention to the N input ports of the power divider body of this invention. The four-stage power dividing channel combines the N microwaves into N4 microwaves, which are then input into the third-stage power dividing channel. The third-stage power dividing channel combines the N4 microwaves into N3 microwaves, which are then input into the second-stage power dividing channel. The second-stage power dividing channel combines the N3 microwaves into N2 microwaves, which are then input into the first-stage power dividing channel. The first-stage power dividing channel combines the N2 microwaves into N1 microwaves, which are finally output through the through-hole in the waveguide port 134 of this invention.

[0033] The welding cover 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 further seals the upper surface of the power divider body, thereby further reducing microwave leakage. Eight rectangular plates in the dielectric window ensure that microwaves are confined within the dielectric window for propagation without leakage, guaranteeing both electrical contact and airtightness. The dielectric window maintains airtightness at both high and low temperatures, thus ensuring normal operation of the invention at both high and low temperatures. The triangular prism slot increases power capacity during power division and power combination.

[0034] Compared with the prior art, the present invention can achieve the following technical effects:

[0035] 1. The present invention adopts an H-plane T-type power divider structure, in which 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 the space utilization and enables the array to be arranged in a compact manner.

[0036] 2. The sealing plate and medium window of the present invention are made of 30% glass fiber PEEK material, whose coefficient of expansion and thermal expansion are similar to those 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 expansion, thus having better airtightness.

[0037] 3. The metal rectangular plate filling the medium window of the present invention ensures good electrical contact while maintaining airtightness.

[0038] 4. The power divider body of the present 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 dielectric window can further improve power capacity. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the high-power microwave vacuum window sealed power divider of the present invention;

[0040] Figure 2 yes Figure 1 A schematic diagram of the structure of the medium power splitter body, welding cover, and medium window.

[0041] Figure 3 yes Figure 1 A schematic diagram of the overall structure of the power divider body and the medium window when the welding cover is not in place.

[0042] Figure 4 yes Figure 1 Top view and enlarged view of the main body of the power splitter; Figure 4 (a) is Figure 1 Top view of the main body 1 of the medium power splitter; Figure 4(b) is Figure 4 (a) A magnified view of a portion at point A; Figure 4 (c) is Figure 4 (a) A magnified view at point B; Figure 4 (d) is Figure 4 (a) A magnified view at point C; Figure 4 (e) is Figure 4 (a) A magnified view at point D.

[0043] Figure 5 yes Figure 1 A vertical sectional view along the OO' plane.

[0044] Figure 6 yes Figure 1 A vertical sectional view along the plane QQ'.

[0045] Figure 7 yes Figure 1 A schematic diagram of the overall structure of the medium window and a magnified view of a portion thereof; Figure 7 (a) is Figure 1 A schematic diagram of the overall structure of the medium window; Figure 7 (b) is Figure 7 (a) A magnified view at point E; Figure 7 (c) is Figure 7 (a) A magnified view at point F.

[0046] Figure 8 yes Figure 7 Horizontal section view and enlarged view along the RR' plane; Figure 8 (a) is Figure 7 A horizontal sectional view along the RR' plane; Figure 8 (b) is Figure 8 (a) A magnified view at point G; Figure 8 (c) is Figure 8 (a) A magnified view at point H.

[0047] Figure 9 yes Figure 1 The rear view of the media window.

[0048] Figure 10 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. Detailed Implementation

[0049] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples.

[0050] Figure 1 This is a schematic diagram of the overall structure of the high-power microwave vacuum window sealed power divider of the present invention; as shown. Figure 1 As shown, the present invention consists of a power divider body 1 and a welding cover 2 (such as...). Figure 2As shown), it consists of a sealing plate 3 and a dielectric window 4. The end of the 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. When implementing the power splitting function, the power splitter body 1 of this invention has an input port connected to a microwave source module to receive the microwaves to be power-split from the microwave source module. The power splitter body 1 of this invention 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 an antenna transmission system. When implementing the power combining function, the N output ports on the main body 1 of the power divider of the present invention become input ports, namely the first input port, the second input port, ..., the nth input port, ..., the Nth input port, which are connected to the medium window 4. The medium window 4 is externally connected to N microwave source modules to receive the microwaves to be combined from the microwave source modules. The input ports on the main body 1 of the power divider of the present invention become output ports and are externally connected to the antenna transmission system. N is a positive integer, equal to the number of power divisions to be achieved, and is generally an even number (for example, if the power divider needs to divide 1 into 16, N equals 16; if the power divider needs to divide 1 into 32, N equals 32). For ease of description, the description follows the power distribution process. Along the input-to-output direction, draw a central axis OO' on the upper surface of the sealing plate 3. Point O is on the input end face of this invention, and point O' is on the medium window 4. This invention is symmetrical about the central axis OO'. Draw a horizontal axis PP' through point O on the upper surface of the sealing plate 3. PP' is perpendicular to OO', with P being the left end and P' being the right end. Let the end closer to the central axis OO' in the vertical direction be the upper end, and the end farther from the central axis OO' be the lower end. Along the central axis OO', the end closer to point O is the front end, and the end closer to point O' is 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.If the input port of the power divider body 1 receives microwaves from the microwave source module, the power divider body 1 will distribute the microwaves with equal power. If the N input ports of the power divider body 1 near O' receive microwaves from the N microwave source modules from the medium window 4, the power divider body 1 will combine the input microwaves. The welding cover 2 is a cuboid plate with chamfered ends on the front surface. The chamfered ends on the 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 the front surface. Made of 30% glass fiber PEEK material, 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, and its function is to send the N groups of microwaves received from the N output ports of the power divider body 1 to the N external antenna transmission systems during power division, and to transmit the microwaves received from the N microwave source modules to the N output ports of the power divider body 1 during synthesis, and to ensure airtightness at high and low temperatures, thereby ensuring the normal use of the present invention at high and low temperatures.

[0051] Figure 2 yes Figure 1 A schematic diagram of the overall structure of the medium power splitter body 1, welding cover 2, and dielectric window 4; as shown. Figure 2 As shown, the welding cover 2 is welded to the upper surface of the power divider body 1, combined with... Figure 1 The sealing plate 3 is fixed to the upper surface of the welding cover 2 with screws.

[0052] Figure 3 yes Figure 1 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 4 yes Figure 1 Top view and enlarged partial view of the main body 1 of the medium-power splitter. (See attached image.) Figure 3 As shown, combined with Figure 4 The power divider body 1 is made of metal material and consists of a power divider filler 11 and a main body shell 13. The main body shell 13 is wrapped around the power divider filler 11. The power divider filler 11 is located between the welding cover 2 and the main body shell 13. Power divider channels 12 are carved in the power divider filler 11. According to their functions, the power divider channels 12 can be divided into a first-level power divider channel 121, a second-level power divider channel 122, a third-level power divider channel 123, and a fourth-level power divider channel 124. The first-level power divider channel 121 and the second-level power divider channel 122 are connected, and the third-level power divider channel 123 and the fourth-level power divider channel 124 are arranged in sequence from O to O' and are interconnected.

[0053] Figure 5yes Figure 1 A vertical sectional view along the OO' plane. Figure 5 As shown, combined with Figure 3 The main body shell 13 is composed of four parts: a bottom shell plate 131, a middle shell plate 132, an upper shell plate 133, and a waveguide port 134. 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 farthest 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 4 (a) is Figure 1 A top view of the main body 1 of the power splitter, as shown below. Figure 4 As shown in (a), combined with Figure 3 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 5 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 4 (a)), the chamfer size is c1 (see Figure 4 (a) The chamfered face of the base plate 131 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 face of the left end of the chamfered face of the base plate 131 is rounded at the left end face of the base plate 131, with a chamfer radius of r1; the chamfered face of the right end of the chamfered face of the base plate 131 is rounded at the right end face of the base plate 131, with a chamfer radius of r1.

[0054] like Figure 3 As shown, combined with Figure 4 (a) and Figure 5 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 5 The thickness is s1; for example Figure 3 As shown, the lower rear surface of the transverse middle plate 1321 is welded to the front surface of the outer casing bottom plate 131. The width of the transverse middle plate 1321 is a2 (see...). Figure 4 (a)); The lengths of both the left-tilted middle plate 1322 and the right-tilted middle plate 1323 are L1 (see Figure 4(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 4 (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 and the left end face of the right inclined middle plate 1323 are welded together. The inner surface of the connection is rounded, and the chamfer radius is equal to r1 (see Figure 4 (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 3 As shown, combined with Figure 4 (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 5 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 3 As shown, combined with Figure 4 (a) and Figure 5 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 4 (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 5 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 5 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 5 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 5 );

[0055] Figure 6 yes Figure 1 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 5 ).like Figure 6 As shown, combined with Figure 5The 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 5 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 5 The 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 5 The second groove 1331 is a rectangular cavity with a width of a5 and a length of s3 (see...). Figure 5 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 5 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 3 As shown, combined with Figure 4 (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 4 (a)), with a length of b1 (see Figure 4 (a)), with a height of h4 (see Figure 5 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 4 (a)), the chamfer radius is equal to c1 (see Figure 4(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, and 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. Except for the possible unequal heights, the lower surface of the power distributor 11 is identical in shape to the upper surface of the outer casing base plate 131. The lower surface of the power distributor 11 is welded to the upper surface of the outer casing base plate 131. The front surface of the power distributor 11 is welded to the rear surface of the transverse middle plate 1321. The chamfered left end of the front surface of the power distributor 11 is welded to the right surface of the left inclined middle plate 1322. The chamfered right end 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. 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 outer casing upper plate 133 is flush with the rear end face of the power distributor 11, and the lower surface of the outer casing upper plate 133 is welded to the upper surface of the power distributor 11. 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 the possible difference in height, the lower surface of the power distributor 11 has the same shape as the upper surface of the outer casing base plate 131, and the lower surface of the power distributor 11 is welded to the upper surface of the outer casing base plate 131. Therefore, the lower surface of the power distributor 11 is wrapped by the outer casing base 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 casing upper plate 133 and the welding cover 2.

[0056] Figure 4 (b) is Figure 4 (a) A magnified view of a portion at point A, such as Figure 4 As shown in (b), combined with Figure 3The primary power distribution channel 121 has an axisymmetric structure. It consists of N1 primary T-shaped power distribution cavities 1211 and N1 primary trapezoidal bodies 1212. The primary trapezoidal bodies 1212 are made of metallic material. Each primary T-shaped power distribution cavity 1211 contains one primary trapezoidal body 1212. The primary trapezoidal body 1212 is located within the power distribution channel 12 carved out by the power distribution filler 11. The lower surface of the primary trapezoidal body 1212 is welded to the upper surface of the outer casing bottom plate 131. It is the hollow part of the bottom surface of the power distribution filler 11. The upper surface of the first-stage trapezoidal body 1212 is 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 part 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 part of the first-stage T-shaped power distribution cavity 1211 is a1 (see...). Figure 4 (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 5The 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.

[0057] Figure 4 (c) is Figure 4 (a) A magnified view of a portion at point B, as shown below. Figure 4 As shown in (c), combined with Figure 3The 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 5 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.

[0058] Figure 4 (d) is Figure 4 (a) A magnified view of a portion at point C, as shown below. Figure 4 As shown in (d), combined with Figure 3The 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 5 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.

[0059] Figure 4 (e) is Figure 4 (a) A magnified view of a portion at point D, as shown below. Figure 4 As shown in (e), in combination Figure 3The 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 5 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.

[0060] like Figure 2As 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 5 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.

[0061] like Figure 1 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 5 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.

[0062] Figure 7 yes Figure 1 A schematic diagram of the overall structure of medium window 4 and a magnified view of a part thereof. Figure 7 (a) is Figure 1 A schematic diagram of the overall structure of medium window 4, as shown below. Figure 7 As shown in (a), combined with Figure 1 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 7 As shown in (a), combined with Figure 5 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 5 A first rectangular groove 411 is opened towards the rear surface of the medium window 4 (see...). Figure 7 (a)), depth s5 (see Figure 5 The width of the first rectangular groove 411 is a5, and the height is h9. Figure 9 yes Figure 1 The rear view of media window 4, as shown Figure 9 As shown, combined with Figure 5 The rear surface of medium window 4 is located at a distance h8 from the upper surface of medium window 4 (see...). Figure 5 A second rectangular groove 412 is opened towards the front surface of the medium window 4, with a depth equal to s5 (see...). Figure 5The 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 5 A third rectangular groove 413 is opened towards the rear surface of the medium window 4, with a depth equal to s5 (see...). Figure 5 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 5 A fourth rectangular groove 414 is opened towards the front surface of the medium window 4, with a depth of s5 (see...). Figure 5 The fourth rectangular groove 414 has a width of a5 and a height of h9; for example... Figure 7 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 9 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 7 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 9 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.

[0063] Figure 8 yes Figure 7 A horizontal section view and a magnified view along the RR' plane, as shown below. Figure 7 As shown in (a), the RR' plane coincides with the front surface along the first rectangular groove 411. Figure 8 (b) is Figure 8 (a) A magnified view at point G; Figure 7 (b) is Figure 7 (a) A magnified view at point E, as shown Figure 8 As shown in (b), combined with Figure 7 (b) and Figure 9 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 7 (b) The left rectangular through slot 431 has rounded corners at both the top and bottom, with a chamfer radius of r12 (see...). Figure 7 (b)); such as Figure 8 As shown in (b), combined with Figure 7(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 7 (b)); The fifth rectangular plate 425 has rounded corners at both the top and bottom, with a corner radius equal to r12 (see...). Figure 7 (b)); such as Figure 8 As shown in (b), combined with Figure 9 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 7 (b)); The sixth rectangular plate 426 has rounded corners at both the top and bottom, with a corner radius equal to r12 (see Figure 7 (b)). Figure 8 (c) is Figure 8 (a) A magnified view at point H. Figure 7 (c) is Figure 7 (a) A magnified view at point F, as shown Figure 8 As shown in (c), combined with Figure 7 (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 7 (c)); The right rectangular through slot 432 has rounded corners at both the top and bottom, with a corner radius of r12 (see...). Figure 7 (c)). For example Figure 8 As shown in (c), combined with Figure 7 (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 7 (c)); The seventh rectangular plate 427 has rounded corners at both the top and bottom, with a corner radius equal to r12 (see Figure 7 (c)); such as Figure 8 As shown in (c), combined with Figure 9 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 7 (c)); The eighth rectangular plate 428 has rounded corners at both the top and bottom, with a corner radius equal to r12 (see Figure 7 (c)). For example Figure 7 As shown in (a), combined with Figure 7 (b) and Figure 8(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 8 (b) 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 with a side length of s7; the height of the triangular prism slot 44 is equal to h4. The function of the triangular prism slot 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. During power combining, the rear surface of the dielectric window 4 is connected to N microwave source modules, and during power distribution, the rear surface of the dielectric window 4 is connected to N antenna transmission systems.

[0064] The working process of this invention is as follows:

[0065] The power distribution process is as follows: During power distribution, the through-hole 1341 in the waveguide port 134 of the power divider body 1 of this invention is used as the input port, and the rectangular waveguide TE... 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 mode 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 medium 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 medium window 4, and is output to the N antenna transmission systems, thereby realizing the power distribution of N waveguides.

[0066] The power combining process is the reverse operation of the power distribution process. Specifically, during power combining, the N ports on the rear end face of the power divider body 1 of this invention serve as input ports. The microwaves output from the N microwave source modules first pass 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 medium window 4 of this invention, and then propagate 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 medium window 4 of this invention to the present invention. The main body 1 of the power divider has N input ports. The fourth-stage power divider channel 124 combines N microwaves into N4 microwaves, which are then input to the third-stage power divider channel 123. The third-stage power divider channel 123 combines N4 microwaves into N3 microwaves, which are then input to the second-stage power divider channel 122. The second-stage power divider channel 122 combines N3 microwaves into N2 microwaves, which are then input to the first-stage power divider channel 121. The first-stage power divider channel 121 combines N2 microwaves into N1 microwaves, which are then output through the through-hole 1341 in the waveguide port 134 of this invention.

[0067] 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.

[0068] Example 1

[0069] The following is an example (let's call it Example 1) of a 1-to-16 (N=16) high-power microwave vacuum window-sealed power divider for C-band (frequency range 4-8 GHz, corresponding microwave wavelength range 75.00-37.50 mm), with specific design dimensions (lowest frequency fmin=4 GHz, highest frequency fmax=8 GHz):

[0070] Based on the operating frequency band and power distribution / combining requirements, after initial selection, the electromagnetic simulation software CST StudioSuit was used for optimization, and the main parameters of Example 1 are as follows:

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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;

[0085] 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.

[0086] Figure 10 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 10 The left side shows the electric field intensity distribution of Example 1 and the external antenna transmitting system. The area inside the rectangle is the electric field intensity distribution of the external antenna transmitting system of Example 1, and the area outside the rectangle is the electric field intensity distribution of Example 1. Figure 10 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 10 As shown on the left, the electric field distribution changes from one path to sixteen paths (see the rectangular box), and except for the locations of Example 1 and the external antenna transmitting system, there is no electric field in the remaining areas, indicating no microwave leakage. Therefore, it can be concluded that Example 1 can effectively achieve a 1-to-16 power distribution and ensure the sealing and vacuum state when Example 1 transmits 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, Example 1 was experimentally verified under conditions of 50°C and -50°C, proving that Example 1 can still complete power combining and distribution at 50°C and -50°C. Figure 10 The specific values ​​of the electric field on the right are shown inside Example 1 (from...) Figure 10 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 Example 1 under vacuum conditions can be calculated. The maximum power capacity can reach 2.57GW. The longest length of Example 1 is 204.9mm, and the widest width is 655mm. These simulation results show that Example 1 has a compact structure, small size, large power capacity, and can be applied at 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.

Claims

1. A high-power microwave vacuum window sealed power divider, characterized in that... The high-power microwave vacuum window sealed power divider consists of a power divider body (1), a welding cover (2), a sealing plate (3), and a dielectric window (4); the power divider body (1) has N output ports connected to the dielectric window (4), where N is a positive integer and equal to the power fraction to be achieved; the high-power microwave vacuum window sealed power divider 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'; the power divider body (1) is a cuboid with chamfered ends on the front surface, which distributes or combines microwaves at 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 sealing plate (3) has the same shape as the welding cover (2) and is located on the upper surface of the welding cover (2); The medium window (4) will send out the N groups of microwaves after power division received from the power divider body (1) or transmit the microwaves received from the outside to the power divider body (1). 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 outer shell middle plate (132). 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. The rectangular plates in the power divider body (1), welding cover (2), and medium window (4) are all made of metal materials, while the sealing plate (3) and medium window (4) are made of 30% glass fiber PEEK material.

2. The high-power microwave vacuum window sealed power divider 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 vacuum window sealed power divider 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 vacuum window sealed power divider 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 vacuum window sealed power divider 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-shaped power dividing cavity, that is, satisfy λ0 / 2 < h4 < λ0, d < λ0 / 2, where λ0 is the wavelength in free space.

6. The high-power microwave vacuum window sealed power divider as described in claim 2, characterized in that... The acute interior angle θ2 between the long side and the waist of the first-level trapezoid (1212), the acute interior angle θ3 between the long side and the waist of the second-level trapezoid (1222), and the acute interior angle θ4 between the long side and the waist of the third-level trapezoid (1232) satisfy θ2<θ3<θ4.

7. The high-power microwave vacuum window sealed power divider as described in claim 2, characterized in that... The values ​​are: N = N4 * 2; N4 = N3 * 2; N3 = N2 * 2; N2 = N1 * 2.

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