High-power microwave vacuum window sealing power divider

Abstract

The invention discloses a high-power microwave vacuum window sealing power divider, and aims to solve the problem that an existing power microwave power divider cannot perform power distribution and synthesis at an extreme temperature. The power divider is composed of a power divider main body, a welding cover, a sealing plate and a medium window. The welding cover is welded on the upper surface of the power divider body, and the sealing plate is fixed on the upper surface of the welding cover. The power divider main body is composed of a power dividing filling body, power dividing channels and a main body shell, the main body shell wraps the power dividing filling body, the power dividing filling body is located between the welding cover and the main body shell, four stages of power dividing channels which are communicated front and back are dug in the power dividing filling body, and each of the first three stages of power dividing channels is composed of a T-shaped power dividing cavity and a trapezoid body. The last stage of power division channel is composed of a T-shaped power division cavity and a capsule cylinder. The medium window is a cuboid cavity and is provided with eight grooves, and the grooves are filled with rectangular plates. The power divider is closely arranged, can still perform power distribution and synthesis at a low temperature of-50 DEG C and a high temperature of 50 DEG C, and is high in power capacity.

Description

Technical Field

[0001] The invention relates to a power divider in the technical field of high-power microwaves, in particular to a high-power microwave vacuum window sealed power divider operating in the C band. Background Art

[0002] High-power microwave (HPM) generally refers to strong electromagnetic radiation with a frequency of 300MHz to 300GHz, a peak power greater than 100MW or an average power greater than 1MW. As a bridge between high-power microwave transmission and antenna arrays, power dividers are important components for power distribution and synthesis. How to ensure the compactness and environmental adaptability of power dividers has become a difficult problem that researchers urgently need to solve.

[0003] High-power microwave power dividers can coherently combine microwave signals generated by multiple independent HPM system units inside a waveguide power combiner by means of phase control and electromagnetic field coupling, and are one of the key technical approaches to achieve microwave power output at the gigawatt (GW) level. Multi-stage cascade power dividers / combiners with rectangular waveguide T-shaped structures have been widely used in the HPM field due to their advantages such as strong stability, small insertion loss, good balance, wide bandwidth, and ability to carry high power. Currently, multi-stage cascade power dividers / combiners with rectangular waveguide T-shaped structures are mostly arranged in arrays, with large volumes (it is generally recognized in the art that array arrangements take up more space), and are limited in use in scenarios with strict size requirements. Due to their large volume, they are generally not convenient for use in high altitudes or vacuums, so there is currently no public literature on the power distribution and synthesis of such multi-stage cascade power dividers / combiners with rectangular waveguide T-shaped structures in extreme temperatures (low temperatures of -50°C and high temperatures of 50°C). HPM systems are widely used in plasma heating, high-power microwave directed energy weapons, high-power radar, high-energy particle RF acceleration and other fields, which also means that the application environment of high-power microwave power dividers is diverse. Therefore, achieving close arrangement of high-power microwave power dividers and ensuring power distribution and synthesis in extreme temperatures has important application value for the development of high-power microwave systems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a new type of high-power microwave vacuum window sealed power divider, which has a compact structure and can solve the problems of the current high-power microwave power divider being difficult to use at low temperatures of -50°C and high temperatures of 50°C and having a large size, in order to solve the problem that it is currently impossible to achieve a close arrangement of power microwave power dividers and ensure that power distribution and synthesis can still be performed at extreme temperatures.

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

[0006] The present invention is composed of a power divider body, a welding cover, a sealing plate, and a dielectric window. Define one end of the present invention close to the microwave source as the input end, and the end far from the microwave source as the output end; when realizing the power division function, there is an input port on the power divider body of the present invention externally connected to a microwave source module to receive the microwave to be power-divided output by the microwave source module. There are N output ports on the power divider body of the present invention, namely the 1st output port, the 2nd output port,..., the nth output port,..., the Nth output port, which are connected to the dielectric window, and the dielectric window is externally connected to an antenna transmitting system. When realizing the combining function, the N output ports on the power divider body of the present invention become input ports, namely the 1st input port, the 2nd input port,..., the nth input port,..., the Nth input port, which are connected to the dielectric window, and the dielectric window is externally connected to N microwave source modules to receive the microwave to be power-combined output by the microwave source modules; the input port on the power divider body of the present invention becomes the output port and is externally connected to an antenna transmitting system. N is a positive integer equal to the number of power division required to be realized, generally an even number (for example, if the power divider needs to divide one into sixteen, N is equal to 16; if the power divider needs to divide one into thirty-two, N is equal to 32). For the convenience of description, it is described according to the realization of power division. Along the input-to-output direction, draw the central axis OO' on the upper surface of the sealing plate. Point O is on the input end face of the present invention, and point O' is on the dielectric window. The present invention is symmetric about the central axis OO'; draw the horizontal axis PP' on the upper surface of the sealing plate passing through point O, and PP' is perpendicular to OO'. P is the left end and P' is the right end; let the end close to the central axis OO' in the vertical direction be the upper end, and the end far from the central axis OO' be the lower end; along the central axis OO', the end close to point O is the front end, and the end close to point O' is the rear end; the power divider body has an input port at point O and N output ports close to O' connected to the dielectric window. The power divider body is a cuboid with chamfers at both ends of the front surface and is made of a metal material.If the input port of the power divider body receives microwaves from the microwave source module, the power divider body equally distributes the microwaves; if the N input ports near O' of the power divider body receive microwaves input from N microwave source modules through the dielectric window, the power divider body synthesizes the input microwaves; the welding cover is a rectangular parallelepiped plate with chamfers at both ends of the front surface, and the chamfers on the front surface match the chamfers at both ends of the front surface of the power divider body. It is made of metal material and seals the upper surface of the power divider body to ensure that the input microwaves propagate in the power divider body and reduce microwave leakage; the sealing plate has the same shape as the welding cover, and is also a rectangular parallelepiped plate with chamfers at both ends of the front surface. It is made of 30% fiberglass PEEK material and is located on the upper surface of the welding cover. Its function is to further seal the upper surface of the power divider body on the basis of the welding cover sealing the upper surface of the power divider body, 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. Its function is to send the N groups of divided microwaves received from the N output ports of the power divider body to the external N antenna transmitting 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, so as to ensure the normal use of the present invention at high and low temperatures.

[0007] The welding cover is welded on the upper surface of the power divider body, and the sealing plate is fixed on the upper surface of the welding cover with screws.

[0008] The power divider body is prepared from metal material and consists of a power division filling body and a main body shell. The main body shell wraps the outside of the power division filling body. The power division filling body is located between the welding cover and the main body shell. Power division channels are dug in the power division filling body. According to functions, the power division channels can be divided into a primary power division channel, a secondary power division channel, a tertiary power division channel, and a quaternary power division channel; the primary power division channel, the secondary power division channel, the tertiary power division channel, and the quaternary power division channel are arranged in sequence from O to O', and are connected to each other front and back.

[0009] The main body housing is composed of four components: a housing bottom plate, a housing middle plate, a housing top plate, and a waveguide port. The housing top plate is the closest to OO'. The upper surface of the housing middle plate is welded to the lower surface of the housing top plate. The housing bottom plate is the farthest from OO'. The upper surface of the housing bottom plate is welded to the lower surface of the housing middle plate. The rear surface of the waveguide port is welded to the front surface of the housing middle plate. The housing bottom plate is a rectangular cuboid plate with a width of a3, a length of b1, and a height of h1. The housing bottom plate is an axisymmetric structure. The left and right ends of the front surface of the housing bottom plate are chamfered at an angle of θ1 with a chamfer size of c1. The chamfered surfaces of the housing bottom plate (i.e., the inclined bevel surfaces formed by the chamfers) are rounded at the connections with the left and right ends of the front surface of the housing bottom plate with a chamfer radius of r1. The surface of the left end of the chamfered housing bottom plate is rounded at the connection with the left end face of the housing bottom plate, and the chamfer radius is equal to r1. The surface of the right end of the chamfered housing bottom plate is rounded at the connection with the right end face of the housing bottom plate, and the chamfer radius is equal to r1.

[0010] The housing middle plate is composed of a transverse middle plate, a left inclined middle plate and a right inclined middle plate that are axisymmetric about OO', and a left longitudinal middle plate and a right longitudinal middle plate that are axisymmetric about OO'. 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 are all rectangular cuboid plates with a height of h3 and a thickness of s1. The lower end of the rear surface of the transverse middle plate is welded to the front surface of the housing bottom plate, and the width of the transverse middle plate is a2. The lengths of the left inclined middle plate and the right inclined middle plate are both L1. The lower end of the right surface of the left longitudinal middle plate is welded to the left surface of the housing bottom plate, and the lower end of the left surface of the right longitudinal middle plate is welded to the right surface of the housing bottom plate. The lengths of the left longitudinal middle plate and the right longitudinal middle plate 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 at the connection is rounded with a chamfer radius equal to r1. The left end face of the left inclined middle plate is welded to the front end face of the left longitudinal middle plate, and the inner surface at the connection is rounded with a chamfer radius equal to r1. The right end face of the right inclined middle plate is welded to the front end face of the right longitudinal middle plate, and the inner surface at the connection is chamfered with a chamfer radius equal to r1. The housing top plate is a rectangular cuboid plate with a width of a3, a length of b3, and a height of h2. The left end face of the housing top plate is welded to the right end face of the left longitudinal middle plate, and is rounded at the connection far from O' with a chamfer radius equal to r1. The waveguide port is axisymmetric about OO'. The rear end face of the waveguide port is welded to the front end face of the transverse middle plate, and the outer surface at the welding place is rounded with a chamfer radius of r2. The waveguide port is a rectangular cuboid plate with a width of a4, a length of b4, and a height equal to h3. The waveguide port and the transverse middle plate are provided with through holes (as the input port of the present invention during power distribution) along the OO' direction. The width of the through hole is d, the depth is equal to b3, the height is h4, the distance from the lower surface of the through hole to the lower surface of the waveguide port is equal to h1, and the distance from the upper surface of the through hole to the upper surface of the waveguide port is equal to h2.

[0011] The bottom plate of the housing has a first groove vertically downward from its upper surface, with a depth of h5; the first groove is a rectangular parallelepiped cavity, with a width of a5 and a length of s3; the two ends of the lower surface of the first groove are chamfered, and the chamfer radius is r11; the distance from the rear end surface of the first groove to the rear end surface of the housing bottom plate is equal to s1, the first groove is axisymmetric about OO’, the distance from the left end surface of the first groove to the left surface of the left longitudinal middle plate is s2, and the distance from the right end surface of the first groove to the right surface of the right longitudinal middle plate is equal to s2. The upper plate of the housing has a second groove vertically upward from its lower surface, with a depth of h6; the second groove is a rectangular parallelepiped cavity, with a width equal to a5 and a length equal to s3; the two ends of the upper surface of the second groove are chamfered, and the chamfer radius is equal to r2; the distance from the rear surface of the second groove to the rear surface of the housing upper plate is equal to s1, the second groove is axisymmetric about OO’, the distance from the left end surface of the second groove to the left surface of the left longitudinal middle plate is equal to s2, and the distance from the right end surface of the second groove to the right surface of the right longitudinal middle plate is equal to s2. The power splitter filling body is a rectangular parallelepiped plate made of metal material, with a width of a3, a length of b1, and a height of h4. The power splitter filling body is an axisymmetric structure, and the two ends of the front surface of the power splitter filling body are chamfered obliquely, with a chamfer angle equal to θ1 and a chamfer radius equal to c1. The lower surface of the power splitter filling body is welded to the upper surface of the housing bottom plate, the front surface of the power splitter filling body is welded to the rear surface of the transverse middle plate, the chamfered oblique surface at the left end of the front surface of the power splitter filling body is welded to the right surface of the left inclined middle plate, and the chamfered oblique surface at the right end of the front surface of the power splitter filling body is welded to the left surface of the right inclined middle plate. Except that the heights may not be equal, the lower surface of the power splitter filling body is exactly the same shape as the upper surface of the housing bottom plate. The lower surface of the power splitter filling body is welded to the upper surface of the housing bottom plate, the chamfered oblique surface at the left end of the front surface of the power splitter filling body is welded to the right surface of the left inclined middle plate, the chamfered oblique surface at the right end of the front surface of the power splitter filling body is welded to the left surface of the right inclined middle plate, the left end surface of the power splitter filling body is welded to the right surface of the left longitudinal middle plate, and the right end surface of the power splitter filling body is welded to the left surface of the right longitudinal middle plate. The rear end surface of the housing upper plate is flush with the rear end surface of the power splitter filling body, and the lower surface of the housing upper plate is welded to the upper surface of the power splitter filling body; the front end surface of the welding cover is flush with the front end surface of the power splitter filling body, and the lower surface of the welding cover is welded to the upper surface of the power splitter filling body. Except that the heights may not be equal, the lower surface of the power splitter filling body is exactly the same shape as the upper surface of the housing bottom plate, and the lower surface of the power splitter filling body is welded to the upper surface of the housing bottom plate. Therefore, the lower surface of the power splitter filling body is wrapped by the housing bottom plate, the power splitter filling body 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, and the upper surface of the power splitter filling body is wrapped by the housing upper plate and the welding cover.

[0012] The first-level power splitting channel is an axisymmetric structure. The first-level power splitting channel is composed of N1 first-level T-shaped power splitting cavities and N1 first-level trapezoids. The first-level trapezoids are made of metal materials. There is a first-level trapezoid in each first-level T-shaped power splitting cavity. The first-level trapezoid is located in the power splitting channel dug in the power splitting filler. The lower surface of the first-level trapezoid is welded to the upper surface of the housing bottom plate. The welding surface is the hollow part of the lower bottom surface of the power splitting filler. The upper surface of the first-level trapezoid is welded to the lower surface of the welding cover. The long side surface of the first-level trapezoid, that is, the rear end surface, is welded to the rear end surface of the transverse part of the first-level T-shaped power splitting cavity; The first-level T-shaped power splitting cavity 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, that is, in a T shape. The width of the transverse part of the first-level T-shaped power splitting cavity is a1, the length is equal to d, and the depth is equal to h4. The width of the longitudinal part of the first-level T-shaped power splitting cavity is equal to d, the length is b5, and the depth is equal to h4; The front surface of the transverse part of the first-level T-shaped power splitting cavity is chamfered at both left and right ends, the chamfering angle is equal to θ1, and the chamfering size is c2; The chamfered corner of the first-level T-shaped power splitting cavity is rounded at the connection with the left end surface of the transverse part of the first-level T-shaped power splitting cavity, the chamfering radius is r4. The chamfered corner of the first-level T-shaped power splitting cavity is rounded at the connection with the right end surface of the transverse part of the first-level T-shaped power splitting cavity, the chamfering radius is equal to r4. The chamfered corner of the first-level T-shaped power splitting cavity is rounded at the connections with both ends of the front surface of the transverse part of the first-level T-shaped power splitting cavity, the chamfering radius is equal to r4; The horizontal distance from the left end surface of the longitudinal part of the first-level T-shaped power splitting cavity to the left end surface of the transverse part of the first-level T-shaped power splitting cavity is a10. The horizontal distance from the right end surface of the longitudinal part of the first-level T-shaped power splitting cavity to the right end surface of the transverse part of the first-level T-shaped power splitting cavity is equal to a10; The front end surface of the transverse part of the first-level T-shaped power splitting cavity and the rear end surface of the longitudinal part of the first-level T-shaped power splitting cavity are rounded at both ends of the connection, and the chamfering radius is r3; The horizontal distance from the left end surface of the transverse part of the first-level T-shaped power splitting cavity to the right surface of the left inclined middle plate is a6. The horizontal distance from the right end surface of the transverse part of the first-level T-shaped power splitting cavity to the left surface of the right inclined middle plate is equal to a6; There is a first-level trapezoid in each first-level T-shaped power splitting cavity. The first-level trapezoid is an isosceles trapezoid. The long side surface of the first-level trapezoid, that is, the rear end surface, is rounded at both ends of the connection with the transverse part of the first-level T-shaped power splitting cavity, and the chamfering radius is equal to r4; The length of the long side of the trapezoidal surface of the first-level trapezoid is a7, the length of the short side of the trapezoidal surface is a8, the height of the trapezoidal surface is b6, the height of the first-level trapezoid is equal to h4, and the angle of the acute interior angle is θ2; The left inclined surface of the first-level trapezoid is rounded at the connection with the front end surface, and the chamfering radius is r5. The right inclined surface of the first-level trapezoid is rounded at the connection with the front end surface, and the chamfering radius is equal to r5; The distance from the left end of the rear end surface of the first-level trapezoid to the left end of the transverse part of the first-level T-shaped power splitting cavity is a9. The distance from the right end of the rear end surface of the first-level trapezoid to the right end of the transverse part of the first-level T-shaped power splitting cavity is equal to a9.

[0013] The secondary power splitting channel is an axisymmetric structure. The secondary power splitting channel is composed of N2 secondary T-shaped power splitting cavities and N2 secondary trapezoids. The secondary trapezoids are prepared from metal materials. There is a secondary trapezoid in each secondary T-shaped power splitting cavity. The secondary trapezoid is located in the power splitting channel dug in the power splitting filler. The lower surface of the secondary trapezoid is welded to the upper surface of the housing bottom plate. The welding surface is the hollow part of the lower bottom surface of the power splitting filler. The upper surface of the secondary trapezoid is welded to the lower surface of the welding cover. The long side surface of the secondary trapezoid, i.e., the rear end surface, is welded to the rear end surface of the transverse part of the secondary T-shaped power splitting cavity; The secondary T-shaped power splitting cavity 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, i.e., T-shaped. The width of the transverse part of the secondary T-shaped power splitting cavity is a11, the length is equal to d, and the depth is equal to h4. The width of the longitudinal part of the secondary T-shaped power splitting cavity is equal to d, the length is b7, and the depth is equal to h4; The transverse part of the secondary T-shaped power splitting cavity is chamfered at both left and right ends of the front end face. The chamfering angle is equal to θ1, and the chamfering size is equal to c2; A fillet is formed at the connection between the left chamfer of the secondary T-shaped power splitting cavity and the left end face of the transverse part of the secondary T-shaped power splitting cavity. The fillet radius is equal to r4. A fillet is formed at the connection between the right chamfer of the secondary T-shaped power splitting cavity and the right end face of the transverse part of the secondary T-shaped power splitting cavity. The fillet radius is equal to r4. A fillet is formed at the connection between the chamfer of the secondary T-shaped power splitting cavity and both ends of the front surface of the transverse part of the secondary T-shaped power splitting cavity. The fillet radius is equal to r4; The horizontal distance from the left end face of the longitudinal part of the secondary T-shaped power splitting cavity closest to the left inclined middle plate to the left end face of the transverse part of the secondary T-shaped power splitting cavity is a12. The horizontal distance from the right end face of the longitudinal part of the secondary T-shaped power splitting cavity to the right end face of the transverse part of the secondary T-shaped power splitting cavity is equal to a13; The front end face of the longitudinal part of the secondary T-shaped power splitting cavity is filleted at the end closer to the left and right end faces of the transverse part of the secondary T-shaped power splitting cavity. The fillet radius is equal to r3; The front end face of the transverse part of the secondary T-shaped power splitting cavity and the rear end face of the longitudinal part of the secondary T-shaped power splitting cavity are filleted at both ends of the connection. The fillet radii are both equal to r1; The horizontal distance from the left end face of the transverse part of the secondary T-shaped power splitting 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 right end face of the transverse part of the secondary T-shaped power splitting cavity closest to the right inclined middle plate to the left surface of the right inclined middle plate is equal to a14; Two adjacent secondary T-shaped power splitting cavities are arranged in an axisymmetric manner. The horizontal distance between the right end face of the transverse part of the secondary T-shaped power splitting cavity and the left end face of the transverse part of the adjacent secondary T-shaped power splitting cavity on the right is a15; There is a secondary trapezoid in each secondary T-shaped power splitting cavity. The long side surface of the secondary trapezoid, i.e., the rear end surface, is closely welded to the rear end surface of the transverse part of the secondary T-shaped power splitting cavity. Fillets are formed at both ends of the connection. The fillet radius is equal to r4; The secondary trapezoid is an isosceles trapezoid. The length of the long side of the isosceles trapezoid surface of the secondary trapezoid is a16, the length of the short side of the isosceles trapezoid surface is a17, the height of the isosceles trapezoid surface is b8, the height of the secondary trapezoid is equal to h4, and the angle of the acute interior angle is θ3;The connection between the left inclined surface and the front end surface of the secondary trapezoid is rounded with a fillet radius of r6, and the connection between the right inclined surface and the front end surface of the secondary trapezoid is rounded with a fillet radius equal to r6; the distance from the left end of the rear end surface of the secondary trapezoid closest to the left inclined middle plate to the left end surface of the horizontal part of the secondary T-shaped power divider cavity is a18, and the distance from the right end of the rear end surface of the secondary trapezoid closest to the left inclined middle plate to the right end surface of the horizontal part of the secondary T-shaped power divider cavity is equal to a19; two adjacent secondary trapezoids are arranged in an axisymmetric manner, and the horizontal distance between the right end of the rear end surface of the secondary trapezoid and the left end of the rear end surface of the adjacent secondary trapezoid on the right is a20.

[0014] The three - level power splitting channel is an axisymmetric structure. The three - level power splitting channel is composed of N3 three - level T - shaped power splitting cavities and N3 three - level trapezoids. The three - level trapezoids are prepared from metal materials. There is a three - level trapezoid in each three - level T - shaped power splitting cavity. The three - level trapezoid is located in the power splitting channel dug in the power splitting filler. The lower surface of the three - level trapezoid is welded to the upper surface of the outer shell bottom plate. The welding surface is the hollow part of the lower bottom surface of the power splitting filler. The upper surface of the three - level trapezoid is welded to the lower surface of the welding cover. The long side surface of the three - level trapezoid, that is, the rear end surface, is welded to the rear end surface of the transverse part of the three - level T - shaped power splitting cavity. The three - level T - shaped power splitting cavity 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, that is, in a T - shape. The width of the transverse part of the three - level T - shaped power splitting cavity is a21, the length is equal to d, and the depth is equal to h4. The width of the longitudinal part of the three - level T - shaped power splitting cavity is equal to d, the length is equal to b7, and the depth is equal to h4; The front end surface of the transverse part of the three - level T - shaped power splitting cavity is chamfered at both the left and right ends. The chamfering angle is equal to θ1, and the chamfering size is equal to c3; A fillet is made at the connection between the left chamfer of the three - level T - shaped power splitting cavity and the left end surface of the transverse part of the three - level T - shaped power splitting cavity, and the fillet radius is r4. A fillet is made at the connection between the right chamfer of the three - level T - shaped power splitting cavity and the right end surface of the transverse part of the three - level T - shaped power splitting cavity, and the fillet radius is equal to r4. A fillet is made at the connection between the chamfer of the three - level T - shaped power splitting cavity and the two ends of the front surface of the transverse part of the three - level T - shaped power splitting cavity, and the fillet radius is equal to r4; The horizontal distance from the left end surface of the longitudinal part of the three - level T - shaped power splitting cavity closest to the left inclined middle plate to the left end surface of the transverse part of the three - level T - shaped power splitting cavity is a22, and the horizontal distance from the right end surface of the longitudinal part of the three - level T - shaped power splitting cavity closest to the left inclined middle plate to the right end surface of the transverse part of the three - level T - shaped power splitting cavity is a23; The front end surface of the longitudinal part of the three - level T - shaped power splitting cavity is filleted at the end closer to the left and right end surfaces of the transverse part of the three - level T - shaped power splitting cavity, and the fillet radius is equal to r3; The front end surface of the transverse part of the three - level T - shaped power splitting cavity and the rear end surface of the longitudinal part of the three - level T - shaped power splitting cavity are filleted at both ends of the connection, and the fillet radii are both r7; The horizontal distance from the left end surface of the transverse part of the three - level T - shaped power splitting cavity closest to the left inclined middle plate to the left end surface of the left inclined middle plate is a24, and the horizontal distance from the right end surface of the transverse part of the three - level T - shaped power splitting cavity closest to the right inclined middle plate to the right end surface of the right inclined middle plate is equal to a24; Two adjacent three - level T - shaped power splitting cavities are arranged in an axisymmetric manner. The horizontal distance between the right end surface of the transverse part of the three - level T - shaped power splitting cavity and the left end surface of the transverse part of the adjacent three - level T - shaped power splitting cavity on the right is a25.Each three - level T - type power divider cavity contains a three - level trapezoid. The long - side surface of the three - level trapezoid, that is, the rear end, is closely welded to the rear end face of the transverse part of the three - level T - type power divider cavity. Rounded corners are formed at both ends of the connection, and the chamfer radius is equal to r4. The three - level trapezoid is an isosceles trapezoid. The length of the long side of the isosceles trapezoid surface of the three - level trapezoid is a26, the length of the short side of the isosceles trapezoid surface is a27, the height of the isosceles trapezoid surface is b9, the height of the three - level trapezoid is equal to h4, and the angle of the acute - angled interior angle is θ4. Rounded corners are formed at the connection between the left inclined surface and the front end face of the three - level trapezoid, and the chamfer radius is r3. Rounded corners are formed at the connection between the right inclined surface and the front end face of the three - level trapezoid, and the chamfer radius is equal to r3. The distance from the left end of the rear end face of the three - level trapezoid closest to the left inclined middle plate to the left end face of the transverse part of the three - level T - type power divider cavity is a28, and the distance from the right end of the rear end face of the three - level trapezoid closest to the left inclined middle plate to the right end face of the transverse part of the three - level T - type power divider cavity is equal to a29. Two adjacent three - level trapezoids are arranged in an axisymmetric manner, and the horizontal distance between the right end of the rear end face of a three - level trapezoid and the left end of the rear end face of the adjacent three - level trapezoid on the right is a30.

[0015] The four - stage power splitting channel is an axisymmetric structure. The four - stage power splitting channel is composed of N4 four - stage T - shaped power splitting cavities and N4 four - stage capsule columns. The four - stage capsule columns are prepared from metal materials. There is a four - stage capsule column in each four - stage T - shaped power splitting cavity. The four - stage capsule column is located in the power splitting channel dug in the power splitting filler. The lower surface of the four - stage capsule column is welded to the upper surface of the outer shell bottom plate. The welding surface is the hollow part of the lower bottom surface of the power splitting filler. A part of the upper surface of the four - stage capsule column is welded to the lower surface of the upper outer shell; The four - stage T - shaped power splitting cavity 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, that is, in a T - shape; The width of the horizontal part of the four - stage T - shaped power splitting cavity is a31, the length is b10, and the depth is equal to h4. The width of the vertical part of the four - stage T - shaped power splitting cavity is equal to d, the length is equal to b11, and the depth is equal to h4; The front end face of the horizontal part of the four - stage T - shaped power splitting cavity is chamfered at both left and right ends. The chamfering angle is equal to θ1, and the chamfering radius is c4; A plane parallel to the left end face of the horizontal part of the four - stage T - shaped power splitting cavity and with a distance of r9 from the left end face of the horizontal part of the four - stage T - shaped power splitting cavity is rounded at the intersection with the left chamfer of the four - stage T - shaped power splitting cavity. The chamfering radius is equal to r7; A plane parallel to the left end face of the horizontal part of the four - stage T - shaped power splitting cavity and with a distance of r9 from the left end face of the horizontal part of the four - stage T - shaped power splitting cavity is rounded at the intersection with the left end face of the four - stage T - shaped power splitting cavity. The chamfering radius is equal to r9; A plane parallel to the right end face of the horizontal part of the four - stage T - shaped power splitting cavity and with a distance of r9 from the right end face of the horizontal part of the four - stage T - shaped power splitting cavity is rounded at the intersection with the right chamfer of the four - stage T - shaped power splitting cavity. The chamfering radius is equal to r7; A plane parallel to the right end face of the horizontal part of the four - stage T - shaped power splitting cavity and with a distance of r9 from the right end face of the horizontal part of the four - stage T - shaped power splitting cavity is rounded at the intersection with the right end face of the four - stage T - shaped power splitting cavity. The chamfering radius is equal to r9; The horizontal distance from the left end face of the vertical part of the four - stage T - shaped power splitting cavity to the left end face of the horizontal part of the four - stage T - shaped power splitting cavity is equal to c4. The horizontal distance from the right end face of the vertical part of the four - stage T - shaped power splitting cavity to the right end face of the horizontal part of the four - stage T - shaped power splitting cavity is equal to c4; The front end face of the horizontal part of the four - stage T - shaped power splitting cavity and the rear end face of the vertical part of the four - stage T - shaped power splitting cavity are rounded at both ends of the connection. The chamfering radius is r8 for both; The horizontal distance from the left end face of the horizontal part of the four - stage T - shaped power splitting cavity closest to the left longitudinal 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 horizontal part of the four - stage T - shaped power splitting cavity closest to the right longitudinal middle plate to the left end face of the right longitudinal middle plate is equal to s4; The four - stage T - shaped power splitting cavity closest to the left longitudinal middle plate is rounded at the intersection of the rounded corner and the left longitudinal middle plate. The chamfering radius is equal to r4; The four - stage T - shaped power splitting cavity closest to the right longitudinal middle plate is rounded at the intersection of the rounded corner and the right longitudinal middle plate. The chamfering radius is equal to r4; The front end face of the vertical part of the four - stage T - shaped power splitting cavity closest to the left longitudinal middle plate is rounded at the right end. The chamfering radius is r10; The front end face of the vertical part of the four - stage T - shaped power splitting cavity closest to the right longitudinal middle plate is rounded at the left end. The chamfering radius is equal to r10;The front end face of the longitudinal part of the fourth-level T-shaped power divider cavity that is the second closest to the left longitudinal middle plate is rounded at the left end with a chamfer radius of r10; the front end face of the longitudinal part of the fourth-level T-shaped power divider cavity that is the second closest to the right longitudinal middle plate is rounded at the right end with a chamfer radius equal to r10; the transverse parts of two adjacent fourth-level T-shaped power divider cavities are interconnected. Except for the two fourth-level T-shaped power divider cavities that are the closest to the left longitudinal middle plate and the closest to the right longitudinal middle plate, the remaining adjacent two fourth-level T-shaped power divider cavities are arranged in an axisymmetric manner; there is a fourth-level capsule cylinder in each fourth-level T-shaped power divider cavity. The distance from the left end face of the fourth-level capsule cylinder to the left end face of the fourth-level T-shaped power divider cavity is a32, and the distance from the right end face of the fourth-level capsule cylinder to the right end face of the fourth-level T-shaped power divider cavity is equal to a32; the width of the fourth-level capsule cylinder is a33, the length is b12, and the height is equal to h4. Both ends of the fourth-level capsule cylinder are rounded with a chamfer radius equal to r9; the distance from the front top end of the fourth-level capsule cylinder to the front end face of the longitudinal part of the fourth-level T-shaped power divider cavity is b13; the horizontal distances between adjacent fourth-level capsule cylinders are all equal. The horizontal distance between the right end face of a fourth-level capsule cylinder and the left end face of the adjacent fourth-level capsule cylinder on the right is a34. The transverse part of each fourth-level T-shaped power divider cavity is separated by the fourth-level capsule cylinder located therein, forming two interconnected channels, that is, two ports, which are used as output ports during power distribution; the N4 fourth-level T-shaped power divider cavities have a total of N output ports, and N and N4 satisfy N = N4 * 2;

[0016] The welding cover is made of a metal material to seal the power divider main body to ensure that the input microwave propagates in the power divider main body. The width of the welding cover is equal to 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 dividing filler body; the welding cover is an axisymmetric structure. The left and right ends of the front surface of the welding cover are chamfered with a chamfer angle equal to θ1 and a chamfer radius equal to c1; the left and right ends of the rear surface of the welding cover are rounded with a chamfer radius equal to r1; the connection between the left chamfer of the welding cover and the left end face of the welding cover is rounded with a chamfer radius equal to r1; the connection between the right chamfer of the welding cover and the right end face of the welding cover is rounded with a chamfer radius equal to r1.

[0017] The sealing plate is a cuboid made of 30% glass fiber PEEK material, with a width equal to a3, a length equal to b14, and a height equal to h6; except that the heights may not be equal, the sealing plate has 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% fiberglass PEEK material, with a width equal to a0, a length of b15, and a height equal to h3. The front surface of the dielectric window is fixed to the rear surface of the bottom plate of the power divider body, the rear surface of the left longitudinal middle plate, the rear surface of the right longitudinal middle plate, and the rear surface of the upper plate of the housing with screws. At a distance of h8 from the upper surface of the dielectric window on the front surface of the dielectric window, a first rectangular groove is opened in the direction of the rear surface of the dielectric window, with a depth of s5; the width of the first rectangular groove is equal to a5, and the height is h9; at a distance of h8 from the upper surface of the dielectric window on the rear surface of the dielectric window, a second rectangular groove is opened in the direction of the front surface of the dielectric window, with a depth equal to s5; the width of the second rectangular groove is equal to a5, and the height is equal to h9; at a distance of h10 from the lower surface of the dielectric window on the front surface of the dielectric window, a third rectangular groove is opened in the direction of the rear surface of the dielectric window, with a depth equal to s5; the width of the third rectangular groove is equal to a5, and the height is equal to h9; at a distance of h10 from the lower surface of the dielectric window on the rear surface of the dielectric window, a fourth rectangular groove is opened in the direction of the front surface of the dielectric window, with a depth of s5; the width of the fourth rectangular groove is equal to a5, and the height is equal to h9; a first rectangular plate is filled in the first rectangular groove, the first rectangular plate is a metal cuboid, with a width equal to a5, a length equal to s5, and a height equal to h9; a second rectangular plate is filled in the second rectangular groove, the second rectangular plate is a metal cuboid, with a width equal to a5, a length equal to s5, and a height equal to h9; a third rectangular plate is filled in the third rectangular groove, the third rectangular plate is a metal cuboid, with a width equal to a5, a length equal to s5, and a height equal to h9; a fourth rectangular plate is filled in the fourth rectangular groove, the fourth rectangular plate is a metal cuboid, with a width equal to a5, a length equal to s5, and a height equal to h9.

[0019] The RR’ plane coincides with the front surface of the first rectangular groove. The front surface of the dielectric window has a left rectangular through - slot at a distance s6 from the left end - face of the dielectric window, in the direction of the rear surface of the dielectric window. The depth is equal to b15. The left rectangular through - slot is a cuboid with a width equal to s3 and a height of h11. The left rectangular through - slot has rounded corners at the upper and lower ends with a chamfer radius of r12. A fifth rectangular plate is filled from the front surface to the rear surface of the left rectangular through - slot. The fifth rectangular plate is a metal cuboid with a width equal to s3, a length of b16, and a height equal to h11. The fifth rectangular plate has rounded corners at the upper and lower ends with a chamfer radius equal to r12. A sixth rectangular plate is filled from the rear surface to the front surface of the left rectangular through - slot. The sixth rectangular plate is a metal cuboid with a width equal to s3, a length equal to b16, and a height equal to h11. The sixth rectangular plate has rounded corners at the upper and lower ends with a chamfer radius equal to r12. The front surface of the dielectric window has a right rectangular through - slot at a distance s6 from the right end - face of the dielectric window, in the direction of the rear surface of the dielectric window. The depth is equal to b15. The width of the right rectangular through - slot is equal to s3 and the height is equal to h11. The right rectangular through - slot has rounded corners at the upper and lower ends with a chamfer radius of r12. A seventh rectangular plate is filled from the front surface to the rear surface of the right rectangular through - slot. The seventh rectangular plate is a metal cuboid with a width equal to s3, a length equal to b16, and a height equal to h11. The seventh rectangular plate has rounded corners at the upper and lower ends with a chamfer radius equal to r12. An eighth rectangular plate is filled from the rear surface to the front surface of the right rectangular through - slot. The eighth rectangular plate is a metal cuboid with a width equal to s3, a length equal to b16, and a height equal to h11. The eighth rectangular plate has rounded corners at the upper and lower ends with a chamfer radius equal to r12. The front - end face of the dielectric window has N5 triangular - prism slots between the left rectangular through - slot and the right rectangular through - slot, arranged from left to right. The upper end - face of the triangular - prism slot coincides with the lower surface of the first rectangular groove, and the lower end - face of the triangular - prism slot coincides with the upper surface of the third rectangular groove. The upper end - face of the triangular - prism slot is an equilateral triangle with a side length of s7. The height of the triangular - prism slot is equal to h4. The function of the triangular - prism slot is to increase the power capacity. Microwaves first directly pass through the rectangle formed by the first rectangular plate, the third rectangular plate, the fifth rectangular plate, and the seventh rectangular plate in the dielectric window, and then pass through the rectangle formed by the second rectangular plate, the fourth rectangular plate, the sixth rectangular plate, and the eighth rectangular plate in the dielectric window for propagation. When power is synthesized, the rear surface of the dielectric window is connected to N microwave source modules, and when power is distributed, the rear surface of the dielectric window is connected to N antenna transmitting systems.

[0020] For the convenience of description, the conditions satisfied by the structural parameters of the above - mentioned design are uniformly introduced here:

[0021] 1. The width of the longitudinal part of each T - type power - dividing cavity is equal to the width d of the through - hole, and the height is equal to the height h4 of the through - hole, and it is required to satisfy the rectangular waveguide TE 10The mode microwave performs power combination 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 stage of T-shaped power divider cavities are kept the same, all equal to d. The lengths of the transverse parts of the first-stage T-shaped power divider cavity, the lengths of the transverse parts of the second-stage T-shaped power divider cavity, the lengths of the transverse parts of the third-stage T-shaped power divider cavity, and the widths of the through holes in the waveguide ports are all equal, all equal to the width d of the longitudinal parts of each stage of T-shaped power divider cavities;

[0022] 2. In order to match the impedance and reduce reflection, there is an isosceles trapezoid structure in each stage of power division channel. Among them, the first-stage power division channel, the second-stage power division channel, and the third-stage power division channel are all isosceles trapezoid structures. As the number of stages 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-stage trapezoid, the acute interior angle θ3 of the second-stage trapezoid, and the acute interior angle θ4 of the third-stage trapezoid satisfy θ2 < θ3 < θ4.

[0023] 3. After determining the width d of the longitudinal part of the T-shaped power divider cavities at all levels, first determine the width a31 of the transverse part of the four-stage T-shaped power divider cavity. To meet the condition of lossless microwave transmission and reduce reflection, the width a31 of the transverse part of the four-stage T-shaped power divider cavity, the distance a32 from the left end face of the four-stage capsule column to the left end face of the four-stage T-shaped power divider cavity, the chamfer radii r9 at both ends of the four-stage capsule column, and the width a33 of the four-stage capsule column should satisfy a31 = r9 + d + a33 + d + r9, a32 = d + r9. According to the number N4 of the four-stage T-shaped power divider cavities, the width a3 of the power dividing filling body can be obtained. The width a3 of the power dividing filling body, the number N4 of the four-stage T-shaped power divider cavities, the width a31 of the transverse part of the four-stage T-shaped power divider cavity, and the horizontal distance s4 from the left end face of the transverse part of the four-stage T-shaped power divider cavity 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 cavity, since the longitudinal part of the four-stage T-shaped power divider cavity is connected to the transverse part of the three-stage T-shaped power divider cavity, the position of the transverse part of the three-stage T-shaped power divider cavity will also be determined. The three-stage trapezoid divides the transverse part of the three-stage T-shaped power divider cavity into two channels, which are respectively connected to the longitudinal parts of two adjacent four-stage T-shaped power divider cavities. Generally, the widths of these two channels should also be d. However, to meet the condition of lossless microwave transmission and reduce reflection, the parameters of the three-stage trapezoid are optimized, and the widths of these two channels will deviate from d. Next, determine the parameters of the two-stage T-shaped power divider cavity, the two-stage trapezoid, the one-stage T-shaped power divider cavity, and the one-stage trapezoid in the same way. The length b5 of the longitudinal part of the one-stage T-shaped power divider cavity, the width a1 of the transverse part of the one-stage T-shaped power divider cavity, the horizontal distance a6 from the left end face of the transverse part of the one-stage T-shaped power divider cavity to the right surface of the left inclined middle plate, the horizontal distance a10 from the left end face of the longitudinal part of the one-stage T-shaped power divider cavity to the left end face of the transverse part of the one-stage T-shaped power divider cavity, the long side length a7 of the trapezoidal surface of the one-stage trapezoid, the short side length a8 of the trapezoidal surface, the height b6 of the trapezoidal surface, the angle θ2 of the acute interior angle, the distance a9 from the left end of the rear end face of the one-stage trapezoid to the left end of the transverse part of the one-stage T-shaped power divider cavity, the length b7 of the longitudinal part of the two-stage T-shaped power divider cavity, the width a11 of the transverse part of the two-stage T-shaped power divider cavity, the horizontal distance a12 from the left end face of the longitudinal part of the two-stage T-shaped power divider cavity closest to the left inclined middle plate to the left end face of the transverse part of the two-stage T-shaped power divider cavity, the horizontal distance a13 from the right end face of the longitudinal part of the two-stage T-shaped power divider cavity to the right end face of the transverse part of the two-stage T-shaped power divider cavity, the horizontal distance a14 from the left end face of the transverse part of the two-stage T-shaped power divider 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 part of the two-stage T-shaped power divider cavity and the left end face of the transverse part of the adjacent two-stage T-shaped power divider cavity on the right, the long side length a16 of the isosceles trapezoidal surface of the two-stage trapezoid, the short side length a17 of the isosceles trapezoidal surface, the height b8 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 two-stage trapezoid closest to the left inclined middle plate to the left end face of the transverse part of the two-stage T-shaped power divider cavity,The distance a19 from the right end of the rear end face of the second-level trapezoid closest to the left-inclined middle plate to the right end face of the transverse part of the second-level T-shaped power divider cavity, the horizontal distance a20 between the right end of the rear end face of the second-level trapezoid and the left end of the rear end face of the adjacent second-level trapezoid on the right, the width a21 of the transverse part of the third-level T-shaped power divider cavity 1231, the horizontal distance a22 from the left end face of the longitudinal part of the third-level T-shaped power divider cavity closest to the left-inclined middle plate to the left end face of the transverse part of the third-level T-shaped power divider cavity, the horizontal distance a23 from the right end face of the longitudinal part of the third-level T-shaped power divider cavity closest to the left-inclined middle plate to the right end face of the transverse part of the third-level T-shaped power divider cavity, the horizontal distance a24 from the left end face of the transverse part of the third-level T-shaped power divider 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 part of the third-level T-shaped power divider cavity and the left end face of the transverse part of the adjacent third-level T-shaped power divider cavity on the right, the length a26 of the long side of the isosceles trapezoid face of the third-level trapezoid, the length a27 of the short side of the isosceles trapezoid face, the height b9 of the isosceles trapezoid face, the angle θ4 of the acute interior angle, the distance a28 from the left end of the rear end face of the third-level trapezoid closest to the left-inclined middle plate to the left end face of the transverse part of the third-level T-shaped power divider cavity, the distance a29 from the right end of the rear end face of the third-level trapezoid closest to the left-inclined middle plate to the right end face of the transverse part of the third-level T-shaped power divider cavity, the horizontal distance a30 between the right end of the rear end face of the third-level trapezoid and the left end of the rear end face of the adjacent third-level trapezoid on the right, the width a31 of the transverse part of the fourth-level T-shaped power divider cavity, the length b10, the length b11 of the longitudinal part of the fourth-level T-shaped power divider cavity, the horizontal distance c4 from the left end face of the longitudinal part of the fourth-level T-shaped power divider cavity to the left end face of the transverse part of the fourth-level T-shaped power divider cavity, the horizontal distance s4 from the left end face of the transverse part of the fourth-level T-shaped power divider cavity 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-level capsule column to the left end face of the fourth-level T-shaped power divider cavity, the width a33 of the fourth-level capsule column, the length b12, the distance b13 from the front top end of the fourth-level capsule column to the front end face of the longitudinal part of the fourth-level T-shaped power divider cavity, the horizontal distance a34 between the right end face of the fourth-level capsule column and the left end face of the adjacent fourth-level capsule column on the right need to achieve a power distribution of one into two during design, and also ensure rectangular waveguide TE, 10Mode microwave transmission and minimize the transmission of higher-order modes. Under the conditions that 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 > b13 > b12 > b11 > b6 > b7 > b8 > b5 and a1 > a20 > a11 > a10 > a9 > a15 > a30 > a21 > a12 > a31 > a13 > a19 > a34 > a18 > a6 > a7 > a25 > a16 > a22 > a26 > a23 > a29 > a32 > a28 > d > a24 > c4 > a14 > a33 > a17 > a27 > a8 > s4, set the transmission efficiency of the distributor / combiner to be greater than 99%. Use the electromagnetic simulation software CST Studio Suit for optimization to obtain the exact 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 chamfer angles at the left and right ends of the horizontal part of each power splitting channel are equal to the chamfer angle θ1 at the left and right ends of the front surface of the outer shell bottom plate. The chamfer size c2 of the first-level T-shaped power splitting cavity, the chamfer size c3 of the second-level T-shaped power splitting cavity, the chamfer size c4 of the third-level T-shaped power splitting cavity, the chamfer size c4 of the fourth-level T-shaped power splitting cavity, the chamfer radius r1 at the connection between the right end face of the horizontal middle plate and the left end face of the right inclined middle plate, the chamfer radius r2 at the connection between the rear end face of the waveguide port and the horizontal middle plate, the chamfer radius r3 at the connection between the front end face of the horizontal part of the first-level T-shaped power splitting cavity and the rear end face of the longitudinal part of the first-level T-shaped power splitting cavity, the chamfer radius r4 at the connection between the chamfer angle of the first-level T-shaped power splitting cavity and the left end face of the horizontal part of the first-level T-shaped power splitting cavity, the chamfer radius r5 at the connection between the inclined surface of the first trapezoid and the front end face, the chamfer radius r6 at the connection between the left inclined surface of the second trapezoid and the front end face, the chamfer radius r7 at the connection between the front end face of the horizontal part of the third-level T-shaped power splitting cavity and the rear end face of the longitudinal part of the third-level T-shaped power splitting cavity, the chamfer radius r8 at the connection between the front end face of the horizontal part of the fourth-level T-shaped power splitting cavity and the rear end face of the longitudinal part of the fourth-level T-shaped power splitting cavity, the chamfer radius r9 at the intersection of the plane parallel to the left end face of the horizontal part of the fourth-level T-shaped power splitting cavity and with a distance equal to r9 from the left end face of the horizontal part of the fourth-level T-shaped power splitting cavity and the left end face of the fourth-level T-shaped power splitting cavity, the chamfer radius r10 at the right end of the front end face of the longitudinal part of the fourth-level T-shaped power splitting cavity closest to the left longitudinal middle plate, the chamfer radii r11 at the left and right ends of the lower surface of the first groove, and the chamfer radii r12 at the upper and lower ends of the rectangular through groove all satisfy the condition of lossless microwave transmission to achieve the purpose of reducing reflection, and r6 > r3 > r11 > r1 > r9 > r2 > r10 > r5 > r7 > r4 > r8 > r12, c1 > c2 > c4 > c3. Generally, θ1 = 45°. The chamfer radii at the connection between the right end face of the horizontal middle plate and the left end face of the right inclined middle plate, the chamfer radii at the connection between the left end face of the horizontal middle plate and the right end face of the left inclined middle plate, the chamfer radii 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 radii 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 radii at the connection between the left end face of the upper outer shell plate and the right end face of the left longitudinal middle plate far from O', the chamfer radii at the connection between the front end face of the horizontal part of the second-level T-shaped power splitting cavity and the rear end face of the longitudinal part of the second-level T-shaped power splitting cavity, the chamfer radii at the left and right ends of the rear surface of the sealing plate, the chamfer radii 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 angle of the sealing plate and the left end face of the sealing plate, the chamfer radii at the connection between the right chamfer angle of the sealing plate and the right end face of the sealing plate, the inner chamfer radii at the connection between the left end face of the horizontal middle plate and the right end face of the left inclined middle plate, the inner chamfer radii at the connection between the right end face of the horizontal middle plate and the left end face of the right inclined middle plate, the inner chamfer radii 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 inner chamfer radii 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 the same, all equal to r1; the outer chamfer radii at the connection between the rear end face of the waveguide port and the front end face of the horizontal middle plate, the chamfer radii at the two ends of the upper surface of the second groove are the same, all equal to r2;The chamfer radii at both ends of the connection between the front end face of the transverse part of the first-level T-shaped power divider cavity and the rear end face of the longitudinal part of the first-level T-shaped power divider cavity, the chamfer radius at the end closer to the left and right end faces of the transverse part of the second-level T-shaped power divider cavity on the front end face of the longitudinal part of the second-level T-shaped power divider cavity, the chamfer radius at the end closer to the left and right end faces of the transverse part of the third-level T-shaped power divider cavity on the front end face of the longitudinal part of the third-level T-shaped power divider cavity, the chamfer radius at the connection between the left inclined surface and the front end face of the third-level trapezoid, and the chamfer radius at the connection between the right inclined surface and the front end face of the third-level trapezoid are the same, all equal to r3; the chamfer radius at the connection between the left chamfered angle of the first-level T-shaped power divider cavity and the left end face of the transverse part of the first-level T-shaped power divider cavity, the chamfer radius at the connection between the right chamfered angle of the first-level T-shaped power divider cavity and the right end face of the transverse part of the first-level T-shaped power divider cavity, the chamfer radius at the connection between the chamfered angle of the first-level T-shaped power divider cavity and the two ends of the front surface of the transverse part of the first-level T-shaped power divider cavity, the chamfer radii at both ends of the connection between the rear end face of the first-level trapezoid and the rear end face of the transverse part of the first-level T-shaped power divider cavity, the chamfer radius at the connection between the left chamfered angle of the second-level T-shaped power divider cavity and the left end face of the transverse part of the second-level T-shaped power divider cavity, the chamfer radius at the connection between the right chamfered angle of the second-level T-shaped power divider cavity and the right end face of the transverse part of the second-level T-shaped power divider cavity, the chamfer radius at the connection between the chamfered angle of the second-level T-shaped power divider cavity and the two ends of the front surface of the transverse part of the second-level T-shaped power divider cavity, the chamfer radii at both ends of the connection between the rear end face of the second-level trapezoid and the rear end face of the transverse part of the second-level T-shaped power divider cavity, the chamfer radius at the connection between the left chamfered angle of the third-level T-shaped power divider cavity and the left end face of the transverse part of the third-level T-shaped power divider cavity, the chamfer radius at the connection between the right chamfered angle of the third-level T-shaped power divider cavity and the right end face of the transverse part of the third-level T-shaped power divider cavity, the chamfer radius at the connection between the chamfered angle of the third-level T-shaped power divider cavity and the two ends of the front surface of the transverse part of the third-level T-shaped power divider cavity, the chamfer radii at both ends of the connection between the rear end face of the third-level trapezoid and the rear end face of the transverse part of the third-level T-shaped power divider cavity, the chamfer radius at the intersection of the fillet of the fourth-level T-shaped power divider cavity closest to the left longitudinal middle plate and the left longitudinal middle plate, and the chamfer radius at the intersection of the fillet of the fourth-level T-shaped power divider cavity closest to the right longitudinal middle plate and the right longitudinal middle plate are the same, all equal to r4; the chamfer radius at the connection between the left inclined surface and the front end face of the first-level trapezoid and the chamfer radius at the connection between the right inclined surface and the front end face of the first-level trapezoid are the same, all equal to r5; the chamfer radius at the connection between the left inclined surface and the front end face of the second-level trapezoid and the chamfer radius at the connection between the right inclined surface and the front end face of the second-level trapezoid are the same, all equal to r6; the chamfer radii at both ends of the connection between the front end face of the transverse part of the third-level T-shaped power divider cavity and the rear end face of the longitudinal part of the third-level T-shaped power divider cavity, the chamfer radius at the intersection of the plane parallel to the left end face of the transverse part of the fourth-level T-shaped power divider cavity and at a distance of r9 from the left end face of the transverse part of the fourth-level T-shaped power divider cavity and the left chamfered angle of the fourth-level T-shaped power divider cavity, and the chamfer radius at the intersection of the plane parallel to the right end face of the transverse part of the fourth-level T-shaped power divider cavity and at a distance of r9 from the right end face of the transverse part of the fourth-level T-shaped power divider cavity and the right chamfered angle of the fourth-level T-shaped power divider cavity are the same, all equal to r7;The chamfer radii at the intersection of the plane parallel to the left end face of the transverse part of the four - stage T - type power divider cavity and at a distance of r9 from the left end face of the transverse part of the four - stage T - type power divider cavity to the left end face of the four - stage T - type power divider cavity, the chamfer radii at the intersection of the plane parallel to the right end face of the transverse part of the four - stage T - type power divider cavity and at a distance of r9 from the right end face of the transverse part of the four - stage T - type power divider cavity to the right end face of the four - stage T - type power divider cavity, and the chamfer radii at both ends of the four - stage capsule cylinder are the same, all equal to r9; the chamfer radii at the right end of the front end face of the longitudinal part of the four - stage T - type power divider cavity closest to the left longitudinal middle plate, the chamfer radii at the left end of the front end face of the longitudinal part of the four - stage T - type power divider cavity closest to the right longitudinal middle plate, the chamfer radii at the left end of the front end face of the longitudinal part of the four - stage T - type power divider cavity second closest to the left longitudinal middle plate, and the chamfer radii at the right end of the front end face of the longitudinal part of the four - stage T - type power divider cavity second closest to the right longitudinal middle plate are the same, all equal to r10; the chamfer radii at the upper and lower ends of the left rectangular through - slot, the chamfer radii at the upper and lower ends of the fifth rectangular plate, the chamfer radii at the upper and lower ends of the sixth rectangular plate, the chamfer radii at the upper and lower ends of the right rectangular through - slot, the chamfer radii at the upper and lower ends of the seventh rectangular plate, and the chamfer radii at the upper and lower ends of the eighth rectangular plate are the same, all equal to r12;

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

[0026] 6. The height of the outer shell bottom plate and the distance from the lower surface of the through - hole to the lower surface of the waveguide port are the same, both equal to h1; the height of the outer shell upper plate and the distance from the upper surface of the through - hole to the upper surface of the waveguide port are the same, both 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 port, 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 - dividing filler, the depth of the one - stage T - type power divider cavity, the height of the one - stage trapezoid, the depth of the two - stage T - type power divider cavity, the height of the two - stage trapezoid, the depth of the three - stage T - type power divider cavity, the height of the three - stage trapezoid, the depth of the four - stage T - type power divider cavity, the height of the four - stage capsule cylinder, and the height of the triangular prism groove are the same, all equal to h4; the depth of the second groove is equal to the height of the sealing plate, both equal to h6; the height of the first rectangular groove, the height of the second rectangular groove, the height of the third rectangular groove, the height of the fourth rectangular groove, the height of the first rectangular plate, the height of the second rectangular plate, the height of the third rectangular plate, and the height of the fourth rectangular plate are the same, all equal to h9; the height of the left rectangular through - slot, the height of the fifth rectangular plate, the height of the sixth rectangular plate, the height of the right rectangular through - slot, the height of the seventh rectangular plate, and the height of the eighth rectangular plate are the same, all equal to h11.

[0027] 7. The widths of the outer shell bottom plate, the outer shell upper plate, the power divider filling body, the welding cover, and the sealing plate are the same, all equal to a3; the widths of the first groove, the second groove, the first rectangular groove, the second rectangular groove, the third rectangular groove, the fourth rectangular groove, the first rectangular plate, the second rectangular plate, the third rectangular plate, and the fourth rectangular plate are the same, all equal to a5; the horizontal distances from the left end face of the transverse part of the first-level T-shaped power divider cavity to the right surface of the left inclined middle plate and from the right end face of the transverse part of the first-level T-shaped power divider cavity to the left surface of the right inclined middle plate are the same, all equal to a6; the distances from the left end of the rear end face of the first-level frustum to the left end of the transverse part of the first-level T-shaped power divider cavity and from the right end of the rear end face of the first-level frustum to the right end of the transverse part of the first-level T-shaped power divider cavity are the same, all equal to a9; the horizontal distances from the left end face of the longitudinal part of the first-level T-shaped power divider cavity to the left end face of the transverse part of the first-level T-shaped power divider cavity and from the right end face of the longitudinal part of the first-level T-shaped power divider cavity to the right end face of the transverse part of the first-level T-shaped power divider cavity are the same, all equal to a10; the horizontal distances from the left end face of the transverse part of the second-level T-shaped power divider cavity closest to the left inclined middle plate to the right surface of the left inclined middle plate and from the right end face of the transverse part of the second-level T-shaped power divider cavity closest to the right inclined middle plate to the left surface of the right inclined middle plate are the same, all equal to a14; the horizontal distances from the left end face of the transverse part of the third-level T-shaped power divider cavity closest to the left inclined middle plate to the left end face of the left inclined middle plate and from the right end face of the transverse part of the third-level T-shaped power divider cavity closest to the right inclined middle plate to the right end face of the right inclined middle plate are the same, all equal to a24; the distances from the left end face of the fourth-level capsule column to the left end face of the fourth-level T-shaped power divider cavity and from the right end face of the fourth-level capsule column to the right end face of the fourth-level T-shaped power divider cavity are the same, all equal to a32; the lengths of the outer shell bottom plate and the power divider filling body are the same, all equal to b1; the lengths of the left longitudinal middle plate and the right longitudinal middle plate are the same, all equal to b2; the length of the outer shell upper plate and the depth of the through hole are the same, all equal to b3; the lengths of the longitudinal parts of the second-level T-shaped power divider cavity and the third-level T-shaped power divider cavity are the same, all equal to b7; the lengths of the welding cover and the sealing plate are the same, all equal to b14; the lengths of the dielectric window, the depth of the left rectangular through groove, and the depth of the right rectangular through groove are the same, all 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 outer shell bottom plate, and the distance from the rear surface of the second groove to the rear surface of the outer shell upper plate 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, from the right end face of the first groove to the right surface of the right longitudinal middle plate, from the left end face of the second groove to the left surface of the left longitudinal middle plate, and 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 widths of the left rectangular through groove, the right rectangular through groove, the fifth rectangular plate, the sixth rectangular plate, the seventh rectangular plate, and the eighth rectangular plate are the same, all equal to s3; the horizontal distances from the left end face of the transverse part of the four-stage T-shaped power divider cavity closest to the left longitudinal middle plate to the right end face of the left longitudinal middle plate, and from the right end face of the transverse part of the four-stage T-shaped power divider cavity closest to the right longitudinal middle plate to the left end face of the right longitudinal middle plate are the same, 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 the same, all equal to s5.;

[0028] Through the electromagnetic simulation software CST Studio Suit, under the conditions that N = N4 * 2, N4 = N3 * 2, N3 = N2 * 2, N2 = N1 * 2, N5 = a5 / s7, h1 = h9 + h10, h2 = h8 + h9, h3 = h1 + h2 + h4, a34 = a32 + a32, b1 = b3 + b14 = 2 * d + b5 + b7 + b11 + b10, a1 = a9 + a7 + a9 = a10 + d + a10, a30 = a29 + a25 + a29, a11 = a16 + a18 + a19 = a12 + d + a13, a21 = a22 + d + a23 = a28 + a26 + a29, a31 = c4 + d + c4 = a33 + a32 + a33, a20 = a19 + a15 + a19, a0 = 2 * c1 + a2 = 2 * s1 + a3 = 2 * s1 + 2 * s4 + 2 * a32 + a33 * N4 + a34 * (N4 - 1), and a0 > a3 > a5 > a2 > a1 > a20 > a11 > a10 > a9 > a15 > a30 > a21 > a12 > a31 > a13 > a19 > a4 > a34 > a18 > a6 > a7 > a25 > a16 > a22 > a26 > a23 > a29 > a32 > a28 > a24 > a14 > a33 > a17 > a27 > a8, s5 > s2 > s1 > s6 > s3 > s4 > s7, b1 > b14 > b2 > b10 > b13 > b12 > b3 > b15 > b11 > b6 > b9 > b7 > b4 > b8 > b5 > b16, c1 > c2 > c4 > c3, h3 > h11 > h4 > h1 > h10 > h2 > h8 > h7 > h5 > h6 > h9, r6 > r3 > r11 > r1 > r9 > r2 > r10 > r5 > r7 > r4 > r8 > r12, L1 = c1 * sinθ1, θ1 = 45°, θ2 < θ3 < θ4, setting the transmission efficiency of the 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 the present invention is divided into power distribution and power combination:

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

[0031] The process of power distribution is as follows: During power distribution, the through holes in the waveguide ports of the power division main body of the present invention serve as input ports, and the rectangular waveguide TE 10 mode microwave is input into N1 first-level power division channels, enters the N1 first-level power division channels through the waveguide ports, and the first-level power division channels divide the rectangular waveguide TE 10 mode microwave into N2 parts according to equal power, and then inputs them into the second-level power division channels; the second-level power division channels divide the rectangular waveguide TE 10 mode microwave into N3 parts according to equal power, and then inputs them into the third-level power division channels; the third-level power division channels divide the rectangular waveguide TE 10 mode microwave into N4 parts according to equal power, and then inputs them into the fourth-level power division channels; the fourth-level power division channels divide the rectangular waveguide TE 10 mode microwave into N parts, and the rectangular waveguide TE 10 mode microwave first passes through the rectangle formed by the first rectangular plate, the third rectangular plate, the fifth rectangular plate, and the seventh rectangular plate in the dielectric window of the power division main body, and then passes through the rectangle formed by the second rectangular plate, the fourth rectangular plate, the sixth rectangular plate, and the eighth rectangular plate in the dielectric window to propagate, and is output to N antenna transmitting systems, thereby realizing the power distribution of N waveguides.

[0032] The power combination process is the reverse operation of the power distribution process. Specifically, during power combination, the N ports on the rear end face of the power division main body of the present invention serve as input ports, and the microwaves output by N microwave source modules first pass through the rectangle formed by the second rectangular plate, the fourth rectangular plate, the sixth rectangular plate, and the eighth rectangular plate in the dielectric window of the present invention, and then pass through the rectangle formed by the first rectangular plate, the third rectangular plate, the fifth rectangular plate, and the seventh rectangular plate in the dielectric window of the present invention to propagate to the N input ports of the power division main body of the present invention. The fourth-level power division channels combine the N paths of microwaves into N4 paths of microwaves, and then input them into the third-level power division channels; the third-level power division channels combine the N4 paths of microwaves into N3 paths of microwaves, and then input the microwaves into the second-level power division channels; the second-level power division channels combine the N3 paths of microwaves into N2 paths of microwaves, and then input the microwaves into the first-level power division channels; the first-level power division channels combine the N2 paths of microwaves into N1 paths of microwaves, and finally output through the through holes in the waveguide port 134 of the present invention.

[0033] The welding cover seals the upper surface of the power divider body, ensuring that the input microwave propagates in the power divider body and reducing microwave leakage; the sealing plate further seals the upper surface of the power divider body, thereby further reducing microwave leakage in the power divider body; the eight rectangular plates in the dielectric window ensure that the microwave is confined in the dielectric window for propagation without leakage, ensuring airtightness while ensuring electrical contact, and the dielectric window still ensures airtightness at high and low temperatures, thus ensuring the normal use of the present invention at high and low temperatures. The triangular prism groove increases the power capacity during power division and power combination.

[0034] Compared with the prior art, the following technical effects can be achieved by using the present invention:

[0035] 1. The present invention adopts an H-plane T-junction power division structure, and the input port of the subsequent power division structure and the output port of the previous power division structure are on the same plane, effectively improving the space utilization rate and enabling the dense arrangement of the array.

[0036] 2. The sealing plate and the dielectric window of the present invention are made of 30% fiberglass PEEK material, and its expansion coefficient is similar to that of metal. At low temperatures of -50°C and high temperatures of 50°C, deformation will not occur due to inconsistent expansion coefficients, and it has better airtightness.

[0037] 3. The metal rectangular plates filled in the dielectric window of the present invention ensure good electrical contact while ensuring airtightness.

[0038] 4. The power divider body of the present invention is a metal structure, and there is no discontinuous structure inside the cavity, which can effectively suppress the generation of the electric field enhancement effect and improve the power capacity; the rectangular grooves in the upper and lower parts at the rear end of the power divider body can cancel reflections, and the continuous triangular prism grooves on the dielectric window can further improve the power capacity. Description of the Drawings

[0039] Figure 1 is the overall structural schematic diagram of the high-power microwave vacuum window sealing power divider of the present invention;

[0040] Figure 2 is Figure 1 the structural schematic diagram of the power divider body, the welding cover and the dielectric window in

[0041] Figure 3 is Figure 1 the overall structural schematic diagram of the power divider body and the dielectric window without the welding cover in

[0042] Figure 4 is Figure 1 the top view and partial enlarged view of the power divider body in Figure 4 (a) is Figure 1 the top view of the power divider body 1 in Figure 4 (b) isFigure 4 (a) Partial enlarged view at A; Figure 4 (c) is Figure 4 (a) Partial enlarged view at B; Figure 4 (d) is Figure 4 (a) Partial enlarged view at C; Figure 4 (e) is Figure 4 (a) Partial enlarged view at D.

[0043] Figure 5 is Figure 1 Vertical sectional view along the OO' plane.

[0044] Figure 6 is Figure 1 Vertical sectional view along the QQ' plane.

[0045] Figure 7 is Figure 1 General structure schematic diagram and partial enlarged view of the dielectric window in Figure 7 (a) is Figure 1 General structure schematic diagram of the dielectric window in Figure 7 (b) is Figure 7 (a) Partial enlarged view at E; Figure 7 (c) is Figure 7 (a) Partial enlarged view at F.

[0046] Figure 8 is Figure 7 Horizontal sectional view along the RR' plane and partial enlarged view; Figure 8 (a) is Figure 7 Horizontal sectional view along the RR' plane; Figure 8 (b) is Figure 8 (a) Partial enlarged view at G; Figure 8 (c) is Figure 8 (a) Partial enlarged view at H.

[0047] Figure 9 is Figure 1 Rear view of the dielectric window.

[0048] Figure 10 It is a simulation result diagram of the electric field distribution characteristics when the input microwave power is 0.5W in Embodiment 1 at the operating frequency point of 4.3GHz. Specific embodiments

[0049] The following further describes the specific embodiments of the present invention in conjunction with the drawings and embodiments.

[0050] Figure 1 It is a general structure schematic diagram of the high-power microwave vacuum window sealing power divider of the present invention; as Figure 1As shown, the present invention consists of a power divider main body 1 and a welding cover 2 (such as Figure 2It consists of a power divider body 1 (as shown), a sealing plate 3, and a dielectric window 4. Define one end of the present invention close to the microwave source as the input end, and the end far from the microwave source as the output end; when realizing the power splitting function, there is an input port on the power divider body 1 of the present invention externally connected to a microwave source module to receive the microwave to be power split output by the microwave source module. There are N output ports on the power divider body 1 of the present invention, namely the 1st output port, the 2nd output port,..., the nth output port,..., the Nth output port, which are connected to the dielectric window 4, and the dielectric window 4 is externally connected to an antenna transmitting system. When realizing the combining function, the N output ports on the power divider body 1 of the present invention become input ports, namely the 1st input port, the 2nd input port,..., the nth input port,..., the Nth input port, which are connected to the dielectric window 4, and the dielectric window 4 is externally connected to N microwave source modules to receive the microwave to be power combined output by the microwave source modules; the input port on the power divider body 1 of the present invention becomes the output port, externally connected to the antenna transmitting system. N is a positive integer equal to the number of power splitting required, generally an even number (for example, if the power divider needs to split one into sixteen, N is equal to 16; if the power divider needs to split one into thirty-two, N is equal to 32). For the convenience of description, it is described according to the realization of power splitting. Along the input-to-output direction, draw the central axis OO' on the upper surface of the sealing plate 3. Point O is on the input end face of the present invention, and point O' is on the dielectric window 4. The present invention is symmetric about the central axis OO'; draw the horizontal axis PP' on the upper surface of the sealing plate 3 through point O, and PP' is perpendicular to OO'. P is the left end and P' is the right end; let the end close to the central axis OO' in the vertical direction be the upper end, and the end far from the central axis OO' be the lower end; along the central axis OO', the end close to point O is the front end, and the end close to point O' is the rear end; the power divider body 1 has an input port at point O and N output ports close to O' connected to the dielectric window 4. The power divider body 1 is a cuboid with chamfers at both ends of the front surface and is made of a metal material.If the input port of the power divider main body 1 receives microwaves from the microwave source module, the power divider main body 1 distributes the microwaves with equal power; if the N input ports near O' of the power divider main body 1 receive the microwaves input by N microwave source modules from the dielectric window 4, the power divider main body 1 synthesizes the input microwaves; the welding cover 2 is a rectangular parallelepiped plate with chamfers at both ends of the front surface, and the chamfers on the front surface match the chamfers at both ends of the front surface of the power divider main body 1. It is made of metal material and seals the upper surface of the power divider main body 1 to ensure that the input microwaves propagate in the power divider main body 1 and reduce the leakage of microwaves; the sealing plate 3 has the same shape as the welding cover 2, and is also a rectangular parallelepiped plate with chamfers at both ends of the front surface. It is made of 30% glass fiber PEEK material and is located on the upper surface of the welding cover 2. Its function is to further seal the upper surface of the power divider main body 1 on the basis of the welding cover 2 sealing the upper surface of the power divider main body 1, so as to further reduce the leakage of microwaves in the power divider main body 1; the dielectric window 4 is connected to the N output ports of the power divider main body 1. Its function is to send the N groups of divided microwaves received from the N output ports of the power divider main body 1 to the external N antenna transmitting 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 main body 1 during synthesis, and to ensure airtightness at high and low temperatures, so as to ensure the normal use of the present invention at high and low temperatures.

[0051] Figure 2 is Figure 1 The overall structural schematic diagram of the power divider main body 1, the welding cover 2 and the dielectric window 4 in; as Figure 2 shown, the welding cover 2 is welded on the upper surface of the power divider main body 1, combined with Figure 1 , the sealing plate 3 is fixed on the upper surface of the welding cover 2 with screws.

[0052] Figure 3 is Figure 1 The overall structural schematic diagram of the power divider main body 1 and the dielectric window 4 without covering the welding cover 2 in; Figure 4 is Figure 1 The top view and partial enlarged view of the power divider main body 1 in. As Figure 3 shown, combined with Figure 4 , the power divider main body 1 is prepared from metal material and consists of a power dividing filling body 11 and a main body housing 13. The main body housing 13 wraps the power dividing filling body 11 on the outside. The power dividing filling body 11 is located between the welding cover 2 and the main body housing 13. A power dividing channel 12 is dug in the power dividing filling body 11. The power dividing channel 12 can be divided into a first-level power dividing channel 121, a second-level power dividing channel 122, a third-level power dividing channel 123, and a fourth-level power dividing channel 124 according to functions; the first-level power dividing channel 121 and the second-level power dividing channel 122 are connected, and the third-level power dividing channel 123 and the fourth-level power dividing channel 124 are arranged in sequence from O to O', and are connected to each other front and back.

[0053] Figure 5Yes Figure 1 Vertical sectional view along the OO' plane. As shown by Figure 5 and combined with Figure 3 , the main body housing 13 is composed of four components: a housing bottom plate 131, a housing middle plate 132, a housing top plate 133, and a waveguide port 134; the housing top plate 133 is the closest to OO', the upper surface of the housing middle plate 132 is welded to the lower surface of the housing top plate 133, the housing bottom plate 131 is the farthest from OO', the upper surface of the housing bottom plate 131 is welded to the lower surface of the housing middle plate 132, and the rear surface of the waveguide port 134 is welded to the front surface of the housing middle plate 132. Figure 4 (a) is Figure 1 the top view of the power divider main body 1. As shown by Figure 4 (a) and combined with Figure 3 , the housing bottom plate 131 is a rectangular parallelepiped plate with a width of a3, a length of b1, and a height of h1 (see Figure 5 ), the housing bottom plate 131 is an axisymmetric structure, and the left and right ends of the front surface of the housing bottom plate 131 are chamfered at an angle of θ1 (see Figure 4 (a)), and the chamfer size is c1 (see Figure 4 (a)). The chamfered surface of the housing bottom plate 131 is rounded at the connection with the left and right ends of the front surface of the housing bottom plate 131 with a chamfer radius of r1; the surface of the left end of the chamfered housing bottom plate 131 is rounded at the connection with the left end face of the housing bottom plate 131, and the chamfer radius is equal to r1; the surface of the right end of the chamfered housing bottom plate 131 is rounded at the connection with the right end face of the housing bottom plate 131, and the chamfer radius is equal to r1.

[0054] As shown by Figure 3 and combined with Figure 4 (a) and Figure 5 , the housing middle plate 132 is composed of a transverse middle plate 1321, a left inclined middle plate 1322 and a right inclined middle plate 1323 that are axisymmetric about OO', and a left longitudinal middle plate 1324 and a right longitudinal middle plate 1325 that are axisymmetric about OO'. 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 rectangular parallelepiped plates with a height of h3 (see Figure 5 ) and a thickness of s1; as shown by Figure 3 , the lower end of the rear surface of the transverse middle plate 1321 is welded to the front surface of the housing bottom plate 131, and the width of the transverse middle plate 1321 is a2 (see Figure 4 (a)); the lengths of the left inclined middle plate 1322 and the right inclined middle plate 1323 are both L1 (see Figure 4(a)); The lower right surface of the left longitudinal middle plate 1324 is welded to the left surface of the housing bottom plate 131, and the lower left surface of the right longitudinal middle plate 1325 is welded to the right surface of the housing 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 is welded to the left end face of the right inclined middle plate 1323. The inner surface at the connection is rounded with a chamfer radius 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. The inner surface at 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. The inner surface at the connection is chamfered with a chamfer radius equal to r1. As Figure 3 shown, combined with Figure 4 (a), the upper housing plate 133 is a rectangular parallelepiped 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 housing plate 133 is welded to the right end face of the left longitudinal middle plate 1324. The connection away from O’ is rounded with a chamfer radius equal to r1. As Figure 3 shown, combined with Figure 4 (a) and Figure 5 , the waveguide port 134 is axisymmetric about OO’. The rear end face of the waveguide port 134 is welded to the front end face of the transverse middle plate 1321. The outer surface at the welding position is rounded with a chamfer radius of r2 (see Figure 4 (a)); The waveguide port 134 is a rectangular parallelepiped plate with a width of a4, a length of b4, and a height equal to h3 (see Figure 5 ); The waveguide port 134 and the transverse middle plate 1321 are provided with a through hole 1341 along the OO’ direction (serving 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 ), and 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 ), and the distance from the upper surface of the through hole 1341 to the upper surface of the waveguide port 134 is equal to h2 (see Figure 5 );

[0055] Figure 6 is Figure 1 a vertical cross-sectional view along the QQ’ plane. QQ’ is parallel to PP’, and the horizontal distance from QQ’ to the rear surface of the upper housing plate 133 is s5 (see Figure 5 ). As Figure 6 shown, combined with Figure 5, the outer shell bottom plate 131 is vertically downwardly opened with a first groove 1311 from the upper surface, and the depth is h5; the first groove 1311 is a cuboid cavity, the width is a5, and the length is s3 (see Figure 5 ); the left and right ends of the lower surface of the first groove 1311 are rounded, and the chamfering radius is r11; the distance from the rear end surface of the first groove 1311 to the rear end surface of the outer shell bottom plate 131 is equal to s1 (see Figure 5 ), the first groove 1311 is axisymmetric about OO’, the distance from the left end surface 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 surface of the first groove 1311 to the right surface of the right longitudinal middle plate 1325 is equal to s2. The outer shell upper plate 133 is vertically upwardly opened with a second groove 1331 from the lower surface, and the depth is h6 (see Figure 5 ); the second groove 1331 is a cuboid cavity, the width is equal to a5, and the length is equal to s3 (see Figure 5 ); the upper surface of the two ends of the second groove 1331 is rounded, and the chamfering radius is equal to r2; the distance from the rear surface of the second groove 1331 to the rear surface of the outer shell upper plate 133 is equal to s1 (see Figure 5 ), the second groove 1331 is axisymmetric about OO’, the distance from the left end surface 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 surface of the second groove 1331 to the right surface of the right longitudinal middle plate 1325 is equal to s2. As Figure 3 shown, combined with Figure 4 (a), the power divider filling body 11 is a cuboid plate made of metal material, the width of the power divider filling body 11 is a3 (see Figure 4 (a)), the length is b1 (see Figure 4 (a)), the height is h4 (see Figure 5 ), the power divider filling body 11 is an axisymmetric structure, the two ends of the front surface of the power divider filling body 11 are chamfered, and the chamfering angle is equal to θ1 (see Figure 4 (a)), and the chamfering radius is equal to c1 (see Figure 4(a)). The lower surface of the power divider filler 11 is welded to the upper surface of the housing bottom plate 131, the front surface of the power divider filler 11 is welded to the rear surface of the transverse middle plate 1321, the chamfered surface at the left end of the front surface of the power divider filler 11 is welded to the right surface of the left inclined middle plate 1322, and the chamfered surface at the right end of the front surface of the power divider filler 11 is welded to the left surface of the right inclined middle plate 1323. Except that the heights may not be equal, the lower surface of the power divider filler 11 has the same shape as the upper surface of the housing bottom plate 131. The lower surface of the power divider filler 11 is welded to the upper surface of the housing bottom plate 131, the front surface of the power divider filler 11 is welded to the rear surface of the transverse middle plate 1321, the chamfered surface at the left end of the front surface of the power divider filler 11 is welded to the right surface of the left inclined middle plate 1322, the chamfered surface at the right end of the front surface of the power divider filler 11 is welded to the left surface of the right inclined middle plate 1323, the left end surface of the power divider filler 11 is welded to the right surface of the left longitudinal middle plate 1324, and the right end surface of the power divider filler 11 is welded to the left surface of the right longitudinal middle plate 1325. The rear end surface of the housing upper plate 133 is flush with the rear end surface of the power divider filler 11, and the lower surface of the housing upper plate 133 is welded to the upper surface of the power divider filler 11; the front end surface of the welding cover 2 is flush with the front end surface of the power divider filler 11, and the lower surface of the welding cover 2 is welded to the upper surface of the power divider filler 11. Except that the heights may not be equal, the lower surface of the power divider filler 11 has the same shape as the upper surface of the housing bottom plate 131, and the lower surface of the power divider filler 11 is welded to the upper surface of the housing bottom plate 131. Therefore, the lower surface of the power divider filler 11 is wrapped by the housing bottom plate 131, the power divider filler 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, and the upper surface of the power divider filler 11 is wrapped by the housing upper plate 133 and the welding cover 2.

[0056] Figure 4 (b) is Figure 4 (a) The partial enlarged view at A, as Figure 4 (b) shown, combined with Figure 3, the first-level power splitting channel 121 is an axisymmetric structure. The first-level power splitting channel 121 is composed of N1 first-level T-shaped power splitting cavities 1211 and N1 first-level trapezoids 1212. The first-level trapezoids 1212 are prepared from metal materials. There is one first-level trapezoid 1212 in each first-level T-shaped power splitting cavity 1211. The first-level trapezoids 1212 are located in the power splitting channels 12 dug in the power splitting filler 11. The lower surface of the first-level trapezoid 1212 is welded to the upper surface of the housing bottom plate 131, and the welding surface is the hollow part of the lower bottom surface of the power splitting filler 11. The upper surface of the first-level trapezoid 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-level trapezoid 1212 is welded to the rear end surface of the transverse part of the first-level T-shaped power splitting cavity 1211; the first-level T-shaped power splitting 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-level T-shaped power splitting cavity 1211 is a1 (see Figure 4 (b)), the length is equal to d, and the depth is equal to h4. The width of the longitudinal part of the first-level T-shaped power splitting 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-level T-shaped power splitting cavity 1211 are chamfered, the chamfering angle is equal to θ1, and the chamfering size is c2; the connection between the chamfer of the first-level T-shaped power splitting cavity 1211 and the left end surface of the transverse part of the first-level T-shaped power splitting cavity 1211 is rounded, the chamfering radius is r4, the connection between the chamfer of the first-level T-shaped power splitting cavity 1211 and the right end surface of the transverse part of the first-level T-shaped power splitting cavity 1211 is rounded, the chamfering radius is equal to r4, and the connection between the chamfer of the first-level T-shaped power splitting cavity 1211 and the two ends of the front surface of the transverse part of the first-level T-shaped power splitting cavity 1211 is rounded, the chamfering radius is equal to r4; the horizontal distance from the left end surface of the longitudinal part of the first-level T-shaped power splitting cavity 1211 to the left end surface of the transverse part of the first-level T-shaped power splitting cavity 1211 is a10, and the horizontal distance from the right end surface of the longitudinal part of the first-level T-shaped power splitting cavity 1211 to the right end surface of the transverse part of the first-level T-shaped power splitting cavity 1211 is equal to a10; the two ends of the connection between the front end surface of the transverse part of the first-level T-shaped power splitting cavity 1211 and the rear end surface of the longitudinal part of the first-level T-shaped power splitting cavity 1211 are rounded, and the chamfering radius is r3; the horizontal distance from the left end surface of the transverse part of the first-level T-shaped power splitting cavity 1211 to the right surface of the left inclined middle plate 1322 is a6, and the horizontal distance from the right end surface of the transverse part of the first-level T-shaped power splitting cavity 1211 to the left surface of the right inclined middle plate 1323 is equal to a6; there is one first-level trapezoid 1212 in each first-level T-shaped power splitting cavity 1211. The first-level trapezoid 1212 is an isosceles trapezoid. The two ends of the connection between the long side surface, i.e., the rear end surface, of the first-level trapezoid 1212 and the transverse part of the first-level T-shaped power splitting cavity 1211 are rounded, and the chamfering radius is equal to r4; the length of the long side of the trapezoidal surface of the first-level trapezoid 1212 is a7, the length of the short side of the trapezoidal surface is a8, the height of the trapezoidal surface is b6, and the height of the first-level trapezoid 1212 is equal to h4 (see Figure 5) The angle of the acute interior angle is θ2; the connection between the left inclined surface and the front end surface of the first-level trapezoid 1212 is rounded with a rounding radius of r5, and the connection between the right inclined surface and the front end surface of the first-level trapezoid 1212 is rounded with a rounding radius equal to r5; the distance from the left end of the rear end surface of the first-level trapezoid 1212 to the left end of the transverse part of the first-level T-shaped power divider cavity 1211 is a9, and the distance from the right end of the rear end surface of the first-level trapezoid 1212 to the right end of the transverse part of the first-level T-shaped power divider cavity 1211 is equal to a9.

[0057] Figure 4 (c) is Figure 4 (a) The partial enlarged view at B, as Figure 4 (c) shown, combined with Figure 3, the secondary power splitting channel 122 is an axisymmetric structure. The secondary power splitting channel 122 is composed of N2 secondary T-shaped power splitting cavities 1221 and N2 secondary trapezoids 1222. The secondary trapezoids 1222 are prepared from metal materials. There is one secondary trapezoid 1222 in each secondary T-shaped power splitting cavity 1221. The secondary trapezoids 1222 are located in the power splitting channels 12 dug in the power splitting filler 11. The lower surface of the secondary trapezoid 1222 is welded to the upper surface of the housing bottom plate 131, and the welding surface is the hollow part of the lower bottom surface of the power splitting filler 11. The upper surface of the secondary trapezoid 1222 is welded to the lower surface of the welding cover 2. The long side surface, i.e., the rear end surface, of the secondary trapezoid 1222 is welded to the rear end surface of the transverse part of the secondary T-shaped power splitting cavity 1221; the secondary T-shaped power splitting cavity 1221 is formed by the perpendicular intersection of a transverse part rectangular cavity parallel to the OO' axis and a longitudinal part rectangular cavity parallel to the PP' axis, i.e., T-shaped. The width of the transverse part of the secondary T-shaped power splitting cavity 1221 is a11, the length is equal to d, and the depth is equal to h4. The width of the longitudinal part of the secondary T-shaped power splitting cavity 1221 is equal to d, the length is b7, and the depth is equal to h4; chamfers are made at the left and right ends of the front end surface of the transverse part of the secondary T-shaped power splitting cavity 1221, the chamfering angle is equal to θ1, and the chamfer size is equal to c2; a fillet is made at the connection between the left chamfer of the secondary T-shaped power splitting cavity 1221 and the left end surface of the transverse part of the secondary T-shaped power splitting cavity 1221, the fillet radius is equal to r4. A fillet is made at the connection between the right chamfer of the secondary T-shaped power splitting cavity 1221 and the right end surface of the transverse part of the secondary T-shaped power splitting cavity 1221, the fillet radius is equal to r4. Fillets are made at the connections between the chamfers of the secondary T-shaped power splitting cavity 1221 and the two ends of the front surface of the transverse part of the secondary T-shaped power splitting cavity 1221, the fillet radius is equal to r4; the horizontal distance from the left end surface of the longitudinal part of the secondary T-shaped power splitting cavity 1221 closest to the left inclined middle plate 1322 to the left end surface of the transverse part of the secondary T-shaped power splitting cavity 1221 is a12, and the horizontal distance from the right end surface of the longitudinal part of the secondary T-shaped power splitting cavity 1221 to the right end surface of the transverse part of the secondary T-shaped power splitting cavity 1221 is equal to a13; a fillet is made at the front end surface of the longitudinal part of the secondary T-shaped power splitting cavity 1221 at the end closer to the left and right end surfaces of the transverse part of the secondary T-shaped power splitting cavity 1221, the fillet radius is equal to r3; fillets are made at both ends of the connection between the front end surface of the transverse part of the secondary T-shaped power splitting cavity 1221 and the rear end surface of the longitudinal part of the secondary T-shaped power splitting cavity 1221, and the fillet radii are both equal to r1; the horizontal distance from the left end surface of the transverse part of the secondary T-shaped power splitting 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 surface of the transverse part of the secondary T-shaped power splitting cavity 1221 closest to the right inclined middle plate 1323 to the left surface of the right inclined middle plate 1323 is equal to a14; two adjacent secondary T-shaped power splitting cavities 1221 are arranged in an axisymmetric manner, and the horizontal distance between the right end surface of the transverse part of the secondary T-shaped power splitting cavity 1221 and the left end surface of the transverse part of the adjacent secondary T-shaped power splitting cavity 1221 on the right is a15;Each secondary T-shaped power divider cavity 1221 contains a secondary trapezoid 1222. The long side surface of the secondary trapezoid 1222, i.e., the rear end face, is tightly welded to the rear end face of the transverse part of the secondary T-shaped power divider cavity 1221. Rounded corners are formed at both ends of the connection, and the chamfer radius is equal to r4. The secondary trapezoid 1222 is an isosceles trapezoid. The length of the long side of the isosceles trapezoid surface of the secondary trapezoid 1222 is a16, the length of the short side of the isosceles trapezoid surface is a17, the height of the isosceles trapezoid surface is b8, and the height of the secondary trapezoid 1222 is equal to h4 (see; Figure 5 ), and the angle of the acute interior angle is θ3. Rounded corners are formed at the connection between the left inclined surface of the secondary trapezoid 1222 and the front end face, and the chamfer radius is r6. Rounded corners are formed at the connection between the right inclined surface of the secondary trapezoid 1222 and the front end face, and the chamfer radius is equal to r6. The distance from the left end of the rear end face of the secondary trapezoid 1222 closest to the left inclined middle plate 1322 to the left end face of the transverse part of the secondary T-shaped power divider cavity 1221 is a18, and the distance from the right end of the rear end face of the secondary trapezoid 1222 closest to the left inclined middle plate 1322 to the right end face of the transverse part of the secondary T-shaped power divider cavity 1221 is equal to a19. Two adjacent secondary trapezoids 1222 are arranged in an axisymmetric manner, and the horizontal distance between the right end of the rear end face of the secondary trapezoid 1222 and the left end of the rear end face of the adjacent secondary trapezoid 1222 on the right is a20.

[0058] Figure 4 (d) is Figure 4 (a) A partial enlarged view at C, as Figure 4 (d) shown, combined with Figure 3, the three-stage power splitting channel 123 is an axisymmetric structure. The three-stage power splitting channel 123 is composed of N3 three-stage T-shaped power splitting cavities 1231 and N3 three-stage trapezoids 1232. The three-stage trapezoids 1232 are prepared from metal materials. There is one three-stage trapezoid 1232 in each three-stage T-shaped power splitting cavity 1231. The three-stage trapezoids 1232 are located in the power splitting channels 12 dug in the power splitting filler 11. The lower surface of the three-stage trapezoid 1232 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 splitting filler 11. The upper surface of the three-stage trapezoid 1232 is welded to the lower surface of the welding cover 2. The long side surface of the three-stage trapezoid 1232, that is, the rear end surface, is welded to the rear end surface of the transverse part of the three-stage T-shaped power splitting cavity 1231. The three-stage T-shaped power splitting cavity 1231 is formed by the perpendicular intersection of a transverse part rectangular cavity parallel to the OO' axis and a longitudinal part rectangular cavity parallel to the PP' axis, that is, T-shaped. The width of the transverse part of the three-stage T-shaped power splitting cavity 1231 is a21, the length is equal to d, and the depth is equal to h4. The width of the longitudinal part of the three-stage T-shaped power splitting cavity 1231 is equal to d, the length is equal to b7, and the depth is equal to h4; the front end surface of the transverse part of the three-stage T-shaped power splitting cavity 1231 is chamfered at both left and right ends, the chamfering angle is equal to θ1, and the chamfering size is equal to c3; a fillet is formed at the connection between the left chamfer of the three-stage T-shaped power splitting cavity 1231 and the left end surface of the transverse part of the three-stage T-shaped power splitting cavity 1231, the chamfering radius is r4. A fillet is formed at the connection between the right chamfer of the three-stage T-shaped power splitting cavity 1231 and the right end surface of the transverse part of the three-stage T-shaped power splitting cavity 1231, and the chamfering radius is equal to r4. A fillet is formed at the connection between the chamfer of the three-stage T-shaped power splitting cavity 1231 and both ends of the front surface of the transverse part of the three-stage T-shaped power splitting cavity 1231, and the chamfering radius is equal to r4; the horizontal distance from the left end surface of the longitudinal part of the three-stage T-shaped power splitting cavity 1231 closest to the left inclined middle plate 1322 to the left end surface of the transverse part of the three-stage T-shaped power splitting cavity 1231 is a22, and the horizontal distance from the right end surface of the longitudinal part of the three-stage T-shaped power splitting cavity 1231 closest to the left inclined middle plate 1322 to the right end surface of the transverse part of the three-stage T-shaped power splitting cavity 1231 is a23; the front end surface of the longitudinal part of the three-stage T-shaped power splitting cavity 1231 is filleted at the end closer to the left and right end surfaces of the transverse part of the three-stage T-shaped power splitting cavity 1231, and the chamfering radius is equal to r3; the front end surface of the transverse part of the three-stage T-shaped power splitting cavity 1231 and the rear end surface of the longitudinal part of the three-stage T-shaped power splitting cavity 1231 are filleted at both ends of the connection, and the chamfering radii are both r7; the horizontal distance from the left end surface of the transverse part of the three-stage T-shaped power splitting cavity 1231 closest to the left inclined middle plate 1322 to the left end surface of the left inclined middle plate 1322 is a24, and the horizontal distance from the right end surface of the transverse part of the three-stage T-shaped power splitting cavity 1231 closest to the right inclined middle plate 1323 to the right end surface of the right inclined middle plate 1323 is equal to a24; two adjacent three-stage T-shaped power splitting cavities 1231 are arranged in an axisymmetric manner, and the horizontal distance between the right end surface of the transverse part of the three-stage T-shaped power splitting cavity 1231 and the left end surface of the transverse part of the adjacent three-stage T-shaped power splitting cavity 1231 on the right is a25.Each three - level T - type power - dividing cavity 1231 contains a three - level trapezoid 1232. The long - side surface of the three - level trapezoid 1232, i.e., the rear end, is tightly welded to the rear end face of the transverse part of the three - level T - type power - dividing cavity 1231. The two ends of the connection are rounded, and the chamfer radius is equal to r4. The three - level trapezoid 1232 is an isosceles trapezoid. The length of the long side of the isosceles trapezoid surface of the three - level trapezoid 1232 is a26, the length of the short side of the isosceles trapezoid surface is a27, the height of the isosceles trapezoid surface is b9, and the height of the three - level trapezoid 1232 is equal to h4 (see Figure 5 ). The angle of the acute - angled interior angle is θ4. The connection between the left inclined plane and the front end face of the three - level trapezoid 1232 is rounded, and the chamfer radius is r3. The connection between the right inclined plane and the front end face of the three - level trapezoid 1232 is rounded, and the chamfer radius is equal to r3. The distance from the left end of the rear end face of the three - level trapezoid 1232 closest to the left inclined middle plate 1322 to the left end face of the transverse part of the three - level T - type power - dividing cavity 1231 is a28, and the distance from the right end of the rear end face of the three - level trapezoid 1232 closest to the left inclined middle plate 1322 to the right end face of the transverse part of the three - level T - type power - dividing cavity 1231 is equal to a29. Two adjacent three - level trapezoids 1232 are arranged in an axisymmetric manner, and the horizontal distance between the right end of the rear end face of the three - level trapezoid 1232 and the left end of the rear end face of the adjacent three - level trapezoid 1232 on the right is a30.

[0059] Figure 4 (e) is Figure 4 (a) The partial enlarged view at D, as Figure 4 (e) shows, combined with Figure 3, the four-level power splitting channel 124 is an axisymmetric structure. The four-level power splitting channel 124 is composed of N4 four-level T-shaped power splitting cavities 1241 and N4 four-level capsule columns 1242. The four-level capsule columns 1242 are prepared from metal materials. There is one four-level capsule column 1242 in each four-level T-shaped power splitting cavity 1241. The four-level capsule columns 1242 are located in the power splitting channels 12 dug in the power splitting filler 11. The lower surface of the four-level 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 splitting filler 11. A part of the upper surface of the four-level capsule column 1242 is welded to the lower surface of the outer shell upper plate 133; the four-level T-shaped power splitting cavity 1241 is formed by the perpendicular intersection of a horizontal rectangular body cavity parallel to the OO' axis and a vertical rectangular body cavity parallel to the PP' axis, that is, in a T shape; the width of the horizontal part of the four-level T-shaped power splitting cavity 1241 is a31, the length is b10, and the depth is equal to h4. The width of the vertical part of the four-level T-shaped power splitting cavity 1241 is equal to d, the length is b11, and the depth is equal to h4; the front end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 is chamfered at both left and right ends, the chamfering angle is equal to θ1, and the chamfering radius is c4; a plane parallel to the left end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 and with a distance of r9 from the left end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 is rounded at the intersection with the left chamfer of the four-level T-shaped power splitting cavity 1241, and the chamfering radius is equal to r7; a plane parallel to the left end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 and with a distance of r9 from the left end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 is rounded at the intersection with the left end face of the four-level T-shaped power splitting cavity 1241 at fillet 1411, and the chamfering radius is equal to r9; a plane parallel to the right end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 and with a distance of r9 from the right end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 is rounded at the intersection with the right chamfer of the four-level T-shaped power splitting cavity 1241, and the chamfering radius is equal to r7; a plane parallel to the right end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 and with a distance of r9 from the right end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 is rounded at the intersection with the right end face of the four-level T-shaped power splitting cavity 1241 at fillet 1412, and the chamfering radius is equal to r9; the horizontal distance from the left end face of the vertical part of the four-level T-shaped power splitting cavity 1241 to the left end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 is equal to c4, and the horizontal distance from the right end face of the vertical part of the four-level T-shaped power splitting cavity 1241 to the right end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 is equal to c4; the front end face of the horizontal part of the four-level T-shaped power splitting cavity 1241 and the rear end face of the vertical part of the four-level T-shaped power splitting cavity 1241 are rounded at both ends at the connection, and the chamfering radius is r8 for both;The horizontal distance from the left end face of the transverse part of the fourth-level T-shaped power divider cavity 1241 closest to the left longitudinal middle plate 1324 to the right end face of the left longitudinal middle plate 1324 is s4, and the horizontal distance from the right end face of the transverse part of the fourth-level T-shaped power divider cavity 1241 closest to the right longitudinal middle plate 1325 to the left end face of the right longitudinal middle plate 1325 is equal to s4; the fourth-level T-shaped power divider cavity 1241 closest to the left longitudinal middle plate 1324 is rounded at the intersection of the rounded corner 1411 and the left longitudinal middle plate 1324, and the chamfer radius is equal to r4; the fourth-level T-shaped power divider cavity 1241 closest to the right longitudinal middle plate 1325 is rounded at the intersection of the rounded corner 1412 and the right longitudinal middle plate 1325, and the chamfer radius is equal to r4; the front end face of the longitudinal part of the fourth-level T-shaped power divider cavity 1241 closest to the left longitudinal middle plate 1324 is rounded at the right end, and the chamfer radius is r10; the front end face of the longitudinal part of the fourth-level T-shaped power divider cavity 1241 closest to the right longitudinal middle plate 1325 is rounded at the left end, and the chamfer radius is equal to r10; the front end face of the longitudinal part of the fourth-level T-shaped power divider cavity 1241 that is the second closest to the left longitudinal middle plate 1324 is rounded at the left end, and the chamfer radius is r10; the front end face of the longitudinal part of the fourth-level T-shaped power divider cavity 1241 that is the second closest to the right longitudinal middle plate 1325 is rounded at the right end, and the chamfer radius is equal to r10; the transverse parts of two adjacent fourth-level T-shaped power divider cavities 1241 are interconnected. Except for the two fourth-level T-shaped power divider cavities 1241 closest to the left longitudinal middle plate 1324 and the two fourth-level T-shaped power divider cavities 1241 closest to the right longitudinal middle plate 1325, the remaining adjacent two fourth-level T-shaped power divider cavities 1241 are arranged in an axisymmetric manner; each fourth-level T-shaped power divider cavity 1241 has a fourth-level capsule column 1242. The distance from the left end face of the fourth-level capsule column 1242 to the left end face of the fourth-level T-shaped power divider cavity 1241 is a32, and the distance from the right end face of the fourth-level capsule column 1242 to the right end face of the fourth-level T-shaped power divider cavity 1241 is equal to a32; the width of the fourth-level capsule column 1242 is a33, the length is b12, and the height is equal to h4 (see; Figure 5 ), the two ends of the fourth-level capsule column 1242 are rounded, and the chamfer radius is equal to r9; the distance from the front top end of the fourth-level capsule column 1242 to the front end face of the longitudinal part of the fourth-level T-shaped power divider cavity 1241 is b13; the horizontal distances between adjacent fourth-level capsule columns 1242 are all equal, and the horizontal distance between the right end face of the fourth-level capsule column 1242 and the left end face of the adjacent fourth-level capsule column 1242 on the right is a34. The transverse part of each fourth-level T-shaped power divider cavity 1241 is separated by the fourth-level capsule column 1242 located therein, forming two interconnected channels, that is, two ports, as the output ports during power distribution; the N4 fourth-level T-shaped power divider cavities 1241 have a total of N output ports, and N and N4 satisfy N = N4 * 2.

[0060] As Figure 2As shown, the welding cover 2 is made of metal material to seal the power divider body 1, ensuring that the input microwave propagates in the power divider body 1. The width of the welding cover 2 is equal to a3, the length is b14, and the height is h7 (see Figure 5 ); the lower surface of the welding cover 2 is welded on the upper surface of the power dividing filler body 11; the welding cover 2 is an axisymmetric structure. The left and right ends of the front surface of the welding cover 2 are chamfered, and the chamfering angle is equal to θ1, and the chamfering radius is equal to c1; the left and right ends of the rear surface of the welding cover 2 are rounded, and the chamfering radius is equal to r1; the connection between the left chamfer of the welding cover 2 and the left end face of the welding cover 2 is rounded, and the chamfering radius is equal to r1; the connection between the right chamfer of the welding cover 2 and the right end face of the welding cover 2 is rounded, and the chamfering radius is equal to r1.

[0061] As Figure 1 shown, the sealing plate 3 is a cuboid made of 30% glass fiber PEEK material, with a width equal to a3, a length equal to b14, and a height equal to h6 (see Figure 5 ); except that the heights may not be equal, the sealing plate 3 has the same shape as the welding cover 2, and the lower surface of the sealing plate 3 is fixed on the upper surface of the welding cover 2 with screws.

[0062] Figure 7 is Figure 1 the overall structure diagram and partial enlarged view of the dielectric window 4. Figure 7 (a) is Figure 1 the overall structure diagram of the dielectric window 4 in Figure 7 (a). As shown in Figure 1 , the dielectric window 4 is a cuboid cavity made of 30% glass fiber PEEK material, with a width equal to a0, a length of b15, and a height equal to h3. The front surface of the dielectric window 4 is fixed on the rear surface of the outer shell bottom plate 131 of the power divider body 1, 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 outer shell upper plate 133 with screws. As shown in Figure 7 (a), combined with Figure 5 , at a distance of h8 from the upper surface of the dielectric window 4 on the front surface of the dielectric window 4 (see Figure 5 ), a first rectangular groove 411 is opened in the direction of the rear surface of the dielectric window 4 (see Figure 7 (a)), and the depth is s5 (see Figure 5 ); the width of the first rectangular groove 411 is equal to a5, and the height is h9; Figure 9 is Figure 1 the rear view of the dielectric window 4. As shown in Figure 9 , combined with Figure 5 , at a distance of h8 from the upper surface of the dielectric window 4 on the rear surface of the dielectric window 4 (see Figure 5 ), a second rectangular groove 412 is opened in the direction of the front surface of the dielectric window 4, and the depth is equal to s5 (see Figure 5 ​​​​​); the width of the second rectangular groove 412 is equal to a5, and the height is equal to h9; the front surface of the dielectric window 4 is at a distance h10 from the lower surface of the dielectric window 4 (see Figure 5 ), a third rectangular groove 413 is opened in the direction of the rear surface of the dielectric window 4, and the depth is 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 dielectric window 4 is at a distance h10 from the lower surface of the dielectric window 4 (see Figure 5 ), a fourth rectangular groove 414 is opened in the direction of the front surface of the dielectric window 4, and the depth is s5 (see Figure 5 ); the width of the fourth rectangular groove 414 is equal to a5, and the height is equal to h9; as Figure 7 (a) shows, 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; as Figure 9 shows, 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; as Figure 7 (a) shows, 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; as Figure 9 shows, 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 equal to a5, a length equal to s5, and a height equal to h9.

[0063] Figure 8 is Figure 7 a horizontal sectional view and a partial enlarged view along the RR' plane. As Figure 7 (a) shows, the RR' plane coincides with the front surface of the first rectangular groove 411. Figure 8 (b) is Figure 8 a partial enlarged view of (a) at G; Figure 7 (b) is Figure 7 a partial enlarged view of (a) at E. As Figure 8 (b) shows, combining Figure 7 (b) and Figure 9 , at a distance s6 from the left end face of the dielectric window 4 on the front surface of the dielectric window 4, a left rectangular through groove 431 is opened in the direction of the rear surface of the dielectric window 4, and the depth is equal to b15. The left rectangular through groove 431 is a cuboid, with a width equal to s3 and a height of h11 (see Figure 7 (b)); the upper and lower ends of the left rectangular through groove 431 are rounded, and the chamfering radius is r12 (see Figure 7 (b)); as Figure 8 (b) shows, combining Figure 7(b), fill the fifth rectangular plate 425 from the front surface to the back surface of the left rectangular through groove 431. The fifth rectangular plate 425 is a metal cuboid with a width equal to s3, a length of b16, and a height equal to h11 (see Figure 7 (b)); the upper and lower ends of the fifth rectangular plate 425 are rounded with a fillet radius equal to r12 (see Figure 7 (b)); as shown in Figure 8 (b), combine Figure 9 , fill the sixth rectangular plate 426 from the back surface to the front surface of the left rectangular through groove 431. 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 Figure 7 (b)); the upper and lower ends of the sixth rectangular plate 426 are rounded with a fillet radius equal to r12 (see Figure 7 (b)). Figure 8 (c) is the partial enlarged view of Figure 8 (a) at H, Figure 7 (c) is the partial enlarged view of Figure 7 (a) at F. As shown in Figure 8 (c), combine Figure 7 (c). At a distance of s6 from the right end face of the dielectric window 4 on the front surface of the dielectric window 4, a right rectangular through groove 432 is opened in the direction of the back surface of the dielectric window 4, with a depth equal to b15. The width of the right rectangular through groove 432 is equal to s3 and the height is equal to h11 (see Figure 7 (c)); the upper and lower ends of the right rectangular through groove 432 are rounded with a fillet radius of r12 (see Figure 7 (c)). As shown in Figure 8 (c), combine Figure 7 (c). Fill the seventh rectangular plate 427 from the front surface to the back surface of the right rectangular through groove 432. 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 upper and lower ends of the seventh rectangular plate 427 are rounded with a fillet radius equal to r12 (see Figure 7 (c)); as shown in Figure 8 (c), combine Figure 9 , fill the eighth rectangular plate 428 from the back surface to the front surface of the right rectangular through groove 432. 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 Figure 7 (c)); the upper and lower ends of the eighth rectangular plate 428 are rounded with a fillet radius equal to r12 (see Figure 7 (c)). As shown in Figure 7 (a), combine Figure 7 (b) and Figure 8(b), the front end surface of the dielectric window 4 is between the left rectangular through groove 431 and the right rectangular through groove 432, and N5 triangular prism grooves 44 are arranged in sequence from left to right (see Figure 8 (b)); the upper end surface of the triangular prism groove 44 coincides with the lower surface of the first rectangular groove 411, and the lower end surface of the triangular prism groove 44 coincides with the upper surface of the third rectangular groove 413; the upper end surface of the triangular prism groove 44 is an equilateral triangle with a side length of s7; the height of the triangular prism groove 44 is equal to h4. The function of the triangular prism groove 44 is to increase the power capacity. The microwave first directly passes 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 for propagation. When power is synthesized, the rear surface of the dielectric window 4 is connected to N microwave source modules, and when power is distributed, the rear surface of the dielectric window 4 is connected to N antenna emission systems.

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

[0065] The process of power distribution is as follows: When power is distributed, the through hole 1341 in the waveguide port 134 of the power division main body 1 of the present invention serves as the input port, and the rectangular waveguide TE 10 mode microwave is input into N1 first-level power division channels 121, enters the N1 first-level power division channels 121 through the waveguide port 134, and the first-level power division channels 121 divide the rectangular waveguide TE 10 mode microwave into N2 parts according to equal power, and then input into the second-level power division channels 122; the second-level power division channels 122 divide the rectangular waveguide TE 10 mode microwave into N3 parts according to equal power, and then input into the third-level power division channels 123; the third-level power division channels 123 divide the rectangular waveguide TE 10 mode microwave into N4 parts according to equal power, and then input into the fourth-level power division channels 124; the fourth-level power division channels 124 divide the rectangular waveguide TE 10 mode microwave into N parts, and the rectangular waveguide TE 10 mode microwave first passes 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 from the N output ports of the power division main body 1, 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 for propagation, and is output to N antenna emission 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 main body 1 of the present invention serve as input ports. The microwaves output by 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 dielectric window 4 of the present invention, and then pass 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 of the present invention and propagate to the N input ports of the power divider main body 1 of the present invention. The four-stage power distribution channel 124 combines the N paths of microwaves into N4 paths of microwaves and then inputs them into the three-stage power distribution channel 123; the three-stage power distribution channel 123 combines the N4 paths of microwaves into N3 paths of microwaves and then inputs the microwaves into the two-stage power distribution channel 122; the two-stage power distribution channel 122 combines the N3 paths of microwaves into N2 paths of microwaves and then inputs the microwaves into the one-stage power distribution channel 121; the one-stage power distribution channel 121 combines the N2 paths of microwaves into N1 paths of microwaves, and finally outputs through the through hole 1341 in the waveguide port 134 of the present invention.

[0067] The welding cover 2 seals the upper surface of the power divider main body 1 to ensure that the input microwaves propagate in the power divider main body 1 and reduce the leakage of microwaves; the sealing plate 3 further seals the upper surface of the power divider main body 1, thereby further reducing the leakage of microwaves in the power divider main body 1; the 8 rectangular plates in the dielectric window 4 ensure that the microwaves are confined in the dielectric window 4 for propagation without leakage, ensuring airtightness while ensuring electrical contact, and the dielectric window 4 still ensures airtightness at high and low temperatures, thereby ensuring the normal use of the present invention at high and low temperatures. The triangular prism groove 44 increases the power capacity during power distribution and power combination.

[0068] Embodiment 1

[0069] The following gives a specific design size (the lowest frequency fmin = 4 GHz, the highest frequency fmax = 8 GHz) of an embodiment (designated as Embodiment 1) of a one-to-sixteen (i.e., N = 16) high-power microwave vacuum window sealed power divider for the C band (frequency range: 4 - 8 GHz, corresponding microwave wavelength range: 75.00 - 37.50 mm):

[0070] According to the working frequency band and power distribution / combination requirements, after preliminary selection, electromagnetic simulation software CST StudioSuit is used for optimization. The main parameters of Embodiment 1 obtained are as follows:

[0071] The width a3 of the outer shell bottom plate 131 is 643 mm, the length b1 is 204.9 mm, the height h1 is 20 mm, chamfered bevels θ1 = 45° are provided at both left and right ends, and the chamfer size c1 is 135.5 mm; the width a2 of the transverse middle plate 1321 is 382 mm, the height h3 is 94.2 mm, and the thickness s1 is 6 mm; the length L1 of the left inclined middle plate 1322 is 191.6 mm, the height h3 is 94.2 mm, and the thickness s1 is 6 mm; the length L1 of the right inclined middle plate 1323 is 191.6 mm, the height h3 is 94.2 mm, and the thickness s1 is 6 mm; the length b2 of the left longitudinal middle plate 1324 is 75.4 mm, the height h3 is 94.2 mm, and the thickness s1 is 6 mm; the length b2 of the right longitudinal middle plate 1325 is 75.4 mm; the height h3 is 94.2 mm, and the thickness s1 is 6 mm; the width a3 of the outer shell upper plate 133 is 643 mm, the length b3 is 21 mm, and the height h2 is 16 mm; the width a4 of the waveguide port 134 is 69 mm, the length b4 is 15 mm, and the height h3 is 94.2 mm; the width d of the through hole 1341 is 29 mm, the depth b3 is 21 mm, and the height h4 is 58.2 mm. The distance h1 from the lower surface of the through hole 1341 to the lower surface of the waveguide port 134 is 20 mm, and the distance h2 from the upper surface of the through hole 1341 to the upper surface of the waveguide port 134 is 25 mm; the width a5 of the first groove 1311 is 640 mm, the length s3 is 3 mm, and the depth h5 is 9 mm. The distance s1 from the rear end surface of the first groove 1311 to the rear end surface of the outer shell bottom plate 131 is 6 mm, the distance s2 from the left end surface of the first groove 1311 to the left surface of the left longitudinal middle plate 1324 is 7.5 mm, and the distance s2 from the right end surface of the first groove 1311 to the right surface of the right longitudinal middle plate 1325 is 7.5 mm; the width a5 of the second groove 1331 is 640 mm, the length s3 is 3 mm, and the depth h6 is 5 mm. The distance s1 from the rear surface of the second groove 1331 to the rear surface of the outer shell upper plate 133 is 6 mm, the distance s2 from the left end surface of the second groove 1331 to the left surface of the left longitudinal middle plate 1324 is 7.5 mm, and the distance s2 from the right end surface of the second groove 1331 to the right surface of the right longitudinal middle plate 1325 is 7.5 mm.

[0072] The width a3 of the power divider filler 11 is 643 mm, the length b1 is 204.9 mm, and the height h4 is 58.2 mm. Chamfered bevels are provided at both ends of the front surface of the power divider filler 11, the chamfer angle is equal to θ1 = 45, and the chamfer size is equal to c1 = 135.5 mm. The chamfer radius r1 at the connection between the chamfered bevel of the power divider filler 11 and the left and right ends of the front surface of the power divider filler 11 is 6 mm; the chamfer radius at the connection between the left chamfered bevel of the power divider filler 11 and the left end surface of the power divider filler 11 is equal to r1 = 6 mm; the chamfer radius at the connection between the right chamfered bevel of the power divider filler 11 and the right end surface of the power divider filler 11 is equal to r1 = 6 mm.

[0073] The number N1 of the first-level T-shaped power dividing cavity 1211 is 1. The width a1 of the horizontal part of the first-level T-shaped power dividing cavity 1211 is 343.6 mm, the length d is 29 mm, the depth h4 is 58.2 mm, the chamfer angles at both left and right ends are equal to θ1 = 45°, and the chamfer size c2 is 25.8 mm. The width d of the vertical part of the first-level T-shaped power dividing cavity 1211 is 29 mm, the length b5 is 14 mm, and the depth h4 is 58.2 mm. The horizontal distance a10 from the left end face of the vertical part of the first-level T-shaped power dividing cavity 1211 to the left end face of the horizontal part of the first-level T-shaped power dividing cavity 1211 is 157.3 mm, and the horizontal distance a10 from the right end face of the vertical part of the first-level T-shaped power dividing cavity 1211 to the right end face of the horizontal part of the first-level T-shaped power dividing cavity 1211 is 157.3 mm. The horizontal distance a6 from the left end face of the horizontal part of the first-level T-shaped power dividing cavity 1211 to the right surface of the left inclined middle plate 1322 is 59.7 mm, and the horizontal distance a6 from the right end face of the horizontal part of the first-level T-shaped power dividing cavity 1211 to the left surface of the right inclined middle plate 1323 is 59.7 mm. The length a7 of the long side of the trapezoidal surface of the first-level trapezoid 1212 is 53.2 mm, the length a8 of the short side of the trapezoidal surface is 4.5 mm, the height b6 of the trapezoidal surface is 18.6 mm, the height h4 of the first-level trapezoid 1212 is 58.2 mm, the acute interior angle θ2 is 40°, the distance a9 from the left end of the rear end face of the first-level trapezoid 1212 to the left end of the horizontal part of the first-level T-shaped power dividing cavity 1211 is 145.2 mm, and the distance a9 from the right end of the rear end face of the first-level trapezoid 1212 to the right end of the horizontal part of the first-level T-shaped power dividing cavity 1211 is 145.2 mm.

[0074] The number N2 of the second-level T-shaped power dividing cavities 1221 is 2. The width a11 of the horizontal part of the second-level T-shaped power dividing cavity 1221 is 185.1 mm, the length d is 29 mm, the depth h4 is 58.2 mm, the chamfer angles θ1 at the left and right ends are 45°, and the chamfer size c2 is 25.8 mm. The width d of the vertical part of the second-level T-shaped power dividing cavity 1221 is 29 mm, the length b7 is 16 mm, and the depth h4 is 58.2 mm. The horizontal distance a12 from the left end face of the vertical part of the second-level T-shaped power dividing cavity 1221 closest to the left inclined middle plate 1322 to the left end face of the horizontal part of the second-level T-shaped power dividing cavity 1221 is 80.8 mm, and the horizontal distance a13 from the right end face of the vertical part of the second-level T-shaped power dividing cavity 1221 to the right end face of the horizontal part of the second-level T-shaped power dividing cavity 1221 is 75.3 mm. The horizontal distance a14 from the left end face of the horizontal part of the second-level T-shaped power dividing 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, and the horizontal distance a14 from the right end face of the horizontal part of the second-level T-shaped power dividing cavity 1221 closest to the right inclined middle plate 1323 to the left surface of the right inclined middle plate 1323 is 24.1 mm. The horizontal distance a15 between the right end face of the horizontal part of the second-level T-shaped power dividing cavity 1221 and the left end face of the horizontal part of the adjacent second-level T-shaped power dividing cavity 1221 on the right is 134.9 mm. The length a16 of the long side of the isosceles trapezoidal surface of the second-level trapezoid 1222 is 45.5 mm, the length a17 of the short side of the isosceles trapezoidal surface is 11 mm, the height b8 of the isosceles trapezoidal surface is 14.5 mm, the height h4 of the second-level trapezoid 1222 is 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-level trapezoid 1222 closest to the left inclined middle plate 1322 to the left end face of the horizontal part of the second-level T-shaped power dividing cavity 1221 is 67.7 mm, the distance a19 from the right end of the rear end face of the second-level trapezoid 1222 closest to the left inclined middle plate 1322 to the right end face of the horizontal part of the second-level T-shaped power dividing cavity 1221 is 71.9 mm, and the horizontal distance a20 between the right end of the rear end face of the second-level trapezoid 1222 and the left end of the rear end face of the adjacent second-level trapezoid 1222 on the right is 278.7 mm.

[0075] The number N3 of the three - stage T - type power - dividing cavities 1231 is 4. The width a21 of the horizontal part of the three - stage T - type power - dividing cavity 1231 is 109 mm, the length d is 29 mm, the depth h4 is 58.2 mm, the chamfer angles θ1 at the left and right ends are 45°, and the chamfer size c3 is 25 mm. The width d of the vertical part of the three - stage T - type power - dividing cavity 1231 is 29 mm, the length b7 is 16 mm, and the depth h4 is 58.2 mm. The horizontal distance a22 from the left end face of the vertical part of the three - stage T - type power - dividing cavity 1231 closest to the left - inclined middle plate 1322 to the left end face of the horizontal part of the three - stage T - type power - dividing cavity 1231 is 42 mm, and the horizontal distance a23 from the right end face of the vertical part of the three - stage T - type power - dividing cavity 1231 closest to the left - inclined middle plate 1322 to the right end face of the horizontal part of the three - stage T - type power - dividing cavity 1231 is 38 mm. The horizontal distance a24 from the left end face of the horizontal part of the three - stage T - type power - dividing cavity 1231 closest to the left - inclined middle plate 1322 to the left end face of the left - inclined middle plate 1322 is 26.5 mm, and the horizontal distance a24 from the right end face of the horizontal part of the three - stage T - type power - dividing cavity 1231 closest to the right - inclined middle plate 1323 to the right end face of the right - inclined middle plate 1323 is 26.5 mm. The horizontal distance a25 between the right end face of the horizontal part of the three - stage T - type power - dividing cavity 1231 and the left end face of the horizontal part of the adjacent three - stage T - type power - dividing cavity 1231 on the right is 50.9 mm. The length a26 of the long side of the isosceles trapezoidal surface of the three - stage trapezoid 1232 is 38.6 mm, the length a27 of the short side of the isosceles trapezoidal surface is 7 mm, the height b9 of the isosceles trapezoidal surface is 17.7 mm, the height h4 of the three - stage trapezoid 1232 is 58.2 mm, and the acute - angle interior angle θ4 is 66.2°. The distance a28 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 horizontal part of the three - stage T - type power - dividing cavity 1231 is 32.6 mm, the distance a29 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 horizontal part of the three - stage T - type power - dividing cavity 1231 is 37.8 mm, and the horizontal distance a30 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 on the right is 126.5 mm.

[0076] The number N4 of the four - stage T - type power - dividing cavities 1241 is 8. The width a31 of the horizontal part of the four - stage T - type power - dividing cavity 1241 is 80 mm, the length b10 is 52.6 mm, the depth h4 is 58.2 mm, the chamfer angles θ1 at both left and right ends are 45°, and the chamfer size c4 is 25.4 mm. The width d of the vertical part of the four - stage T - type power - dividing cavity 1241 is 29 mm, the length b11 is 19.3 mm, and the depth h4 is 58.2 mm. The horizontal distance c4 from the left end face of the vertical part of the four - stage T - type power - dividing cavity 1241 to the left end face of the horizontal part of the four - stage T - type power - dividing cavity 1241 is 25.4 mm, and the horizontal distance c4 from the right end face of the vertical part of the four - stage T - type power - dividing cavity 1241 to the right end face of the horizontal part of the four - stage T - type power - dividing cavity 1241 is 25.4 mm. The horizontal distance s4 from the left end face of the horizontal part of the four - stage T - type power - dividing cavity 1241 closest to the left vertical middle plate 1324 to the right end face of the left vertical middle plate 1324 is 1.5 mm, and the horizontal distance s4 from the right end face of the horizontal part of the four - stage T - type power - dividing cavity 1241 closest to the right vertical middle plate 1325 to the left end face of the right vertical middle plate 1325 is 1.5 mm. The distance a32 from the left end face of the four - stage capsule column 1242 to the left end face of the four - stage T - type power - dividing cavity 1241 is 34.25 mm, the distance a32 from the right end face of the four - stage capsule column 1242 to the right end face of the four - stage T - type power - dividing cavity 1241 is 34.25 mm. The width a33 of the four - stage capsule column 1242 is 11.5 mm, the length b12 is 21.6 mm, the height h4 is 58.2 mm. The distance b13 from the front top end of the four - stage capsule column 1242 to the front end face of the vertical part of the four - stage T - type power - dividing cavity 1241 is 36.4 mm, and the horizontal distance a34 between the right end face of the four - stage capsule column 1242 and the left end face of the adjacent four - stage capsule column 1242 on the right is 68.5 mm.

[0077] The inner - surface chamfer radius r1 at the connection between the left end face of the horizontal middle plate 1321 and the right end face of the left - inclined middle plate 1322 is 6 mm, and the inner - surface chamfer radius r1 at the connection between the right end face of the horizontal middle plate 1321 and the left end face of the right - inclined middle plate 1323 is 6 mm. The inner - surface chamfer radius r1 at the connection between the left end face of the left - inclined middle plate 1322 and the front end face of the left vertical middle plate 1324 is 6 mm. The inner - surface chamfer radius r1 at the connection between the right end face of the right - inclined middle plate 1323 and the front end face of the right vertical middle plate 1325 is 6 mm. The chamfer radius r1 at the connection between the left end face of the outer - shell upper plate 133 and the right end face of the left vertical middle plate 1324 away from O’ is 6 mm. The outer - surface chamfer radius r2 at the connection between the rear end face of the waveguide port 134 and the front end face of the horizontal middle plate 1321 is 5 mm. The chamfer radii r11 at both left and right ends of the lower surface of the first groove 1311 are 8 mm. The chamfer radii r2 at both ends of the upper surface of the second groove 1331 are 5 mm.

[0078] The chamfer radius r4 at the connection between the rear surface of the chamfered first-level T-shaped power divider cavity 1211 and the left end face of the horizontal part of the first-level T-shaped power divider cavity 1211 is 2.5 mm. The chamfer radius r4 at the connection between the right chamfer of the first-level T-shaped power divider cavity 1211 and the right end face of the horizontal part of the first-level T-shaped power divider cavity 1211 is 2.5 mm. The chamfer radius r4 at the connection between the chamfer of the first-level T-shaped power divider cavity 1211 and both ends of the front surface of the horizontal part of the first-level T-shaped power divider cavity 1211 is 2.5 mm. The chamfer radius r3 at both ends of the connection between the front end face of the horizontal part of the first-level T-shaped power divider cavity 1211 and the rear end face of the vertical part of the first-level T-shaped power divider cavity 1211 is 10 mm. The chamfer radius r4 at the connection between the rear end face of the first-level trapezoid 1212 and the rear end face of the horizontal part of the first-level T-shaped power divider cavity 1211 is 2.5 mm. The chamfer radius r5 at the connection between the left inclined surface and the front end face of the first-level trapezoid 1212 is 3.5 mm, and the chamfer radius r5 at the connection between the right inclined surface and the front end face of the first-level trapezoid 1212 is 3.5 mm.

[0079] The chamfer radius r4 at the connection between the left chamfer of the second-level T-shaped power divider cavity 1221 and the left end face of the horizontal part of the second-level T-shaped power divider cavity 1221 is 2.5 mm. The chamfer radius r4 at the connection between the right chamfer of the second-level T-shaped power divider cavity 1221 and the right end face of the horizontal part of the second-level T-shaped power divider cavity 1221 is 2.5 mm. The chamfer radius at the connection between the chamfer of the second-level T-shaped power divider cavity 1221 and both ends of the front surface of the horizontal part of the second-level T-shaped power divider cavity 1221 is equal to r4 = 2.5 mm. The chamfer radius r3 at the end closer to the left and right end faces of the horizontal part of the second-level T-shaped power divider cavity 1221 on the front end face of the vertical part of the second-level T-shaped power divider cavity 1221 is 10 mm. The chamfer radius r1 at both ends of the connection between the front end face of the horizontal part of the second-level T-shaped power divider cavity 1221 and the rear end face of the vertical part of the second-level T-shaped power divider cavity 1221 is 6 mm. The chamfer radius r4 at both ends of the connection between the rear end face of the second-level trapezoid 1222 and the rear end face of the horizontal part of the second-level T-shaped power divider cavity 1222 is 2.5 mm. The chamfer radius r6 at the connection between the left inclined surface and the front end face of the second-level trapezoid 1222 is 12 mm, and the chamfer radius r6 at the connection between the right inclined surface and the front end face of the second-level trapezoid 1222 is 12 mm.

[0080] The chamfer radius r4 at the connection between the left inclined angle of the three-stage T-shaped power divider cavity 1231 and the left end face of the horizontal part of the three-stage T-shaped power divider cavity 1231 is 2.5 mm. The chamfer radius r4 at the connection between the right inclined angle of the three-stage T-shaped power divider cavity 1231 and the right end face of the horizontal part of the three-stage T-shaped power divider cavity 1231 is 2.5 mm. The chamfer radius r4 at the connection between the inclined angle of the three-stage T-shaped power divider cavity 1231 and both ends of the front surface of the horizontal part of the three-stage T-shaped power divider cavity 1231 is 2.5 mm. The chamfer radius r3 at the front end face of the vertical part of the three-stage T-shaped power divider cavity 1231 at the end closer to the left and right end faces of the horizontal part of the three-stage T-shaped power divider cavity 1231 is 10 mm. The chamfer radii r7 at both ends of the connection between the front end face of the horizontal part of the three-stage T-shaped power divider cavity 1231 and the rear end face of the vertical part of the three-stage T-shaped power divider cavity 1231 are 3 mm. The chamfer radii r4 at both ends of the connection between the rear end face of the three-stage trapezoid 1232 and the rear end face of the horizontal part of the three-stage T-shaped power divider cavity 1231 are 2.5 mm. The chamfer radius r3 at the connection between the left inclined surface and the front end face of the three-stage trapezoid 1232 is 10 mm, and the chamfer radius r3 at the connection between the right inclined surface and the front end face of the three-stage trapezoid 1232 is 10 mm.

[0081] A plane parallel to the left end face of the horizontal part of the four-level T-shaped power divider cavity 1241 and at a distance r9 = 5.25 mm from the left end face of the horizontal part of the four-level T-shaped power divider cavity 1241 has a chamfer radius r7 = 3 mm at the intersection with the left chamfer of the four-level T-shaped power divider cavity 1241; a plane parallel to the left end face of the horizontal part of the four-level T-shaped power divider cavity 1241 and at a distance r9 = 5.25 mm from the left end face of the horizontal part of the four-level T-shaped power divider cavity 1241 has a fillet radius r9 = 5.25 mm at the intersection with the left end face of the four-level T-shaped power divider cavity 1241; a plane parallel to the right end face of the horizontal part of the four-level T-shaped power divider cavity 1241 and at a distance r9 = 5.25 mm from the right end face of the horizontal part of the four-level T-shaped power divider cavity 1241 has a chamfer radius r7 = 3 mm at the intersection with the right chamfer of the four-level T-shaped power divider cavity 1241; a plane parallel to the right end face of the horizontal part of the four-level T-shaped power divider cavity 1241 and at a distance r9 = 5.25 mm from the right end face of the horizontal part of the four-level T-shaped power divider cavity 1241 has a fillet radius r9 = 5.25 mm at the intersection with the right end face of the four-level T-shaped power divider cavity 1241; the front end face of the horizontal part of the four-level T-shaped power divider cavity 1241 and the rear end face of the vertical part of the four-level T-shaped power divider cavity 1241 have chamfer radii r8 = 2 mm at both ends of the connection; the four-level T-shaped power divider cavity 1241 closest to the left vertical middle plate 1324 has a chamfer radius r4 = 2.5 mm at the intersection of the fillet 1411 and the left vertical middle plate 1324; the four-level T-shaped power divider cavity 1241 closest to the right vertical middle plate 1325 has a chamfer radius r4 = 2.5 mm at the intersection of the fillet 1412 and the right vertical middle plate 1325; the front end face of the vertical part of the four-level T-shaped power divider cavity 1241 closest to the left vertical middle plate 1324 has a chamfer radius r10 = 4 mm at the right end; the front end face of the vertical part of the four-level T-shaped power divider cavity 1241 closest to the right vertical middle plate 1325 has a chamfer radius r10 = 4 mm at the left end; the front end face of the vertical part of the four-level T-shaped power divider cavity 1241 second closest to the left vertical middle plate 1324 has a chamfer radius r10 = 4 mm at the left end; the front end face of the vertical part of the four-level T-shaped power divider cavity 1241 second closest to the right vertical middle plate 1325 has a chamfer radius r10 = 4 mm at the right end; both ends of the four-level capsule cylinder 1242 have a chamfer radius r9 = 5.25 mm.

[0082] The width a3 of the welding cover 2 is 643 mm, the length b14 is 183.9 mm, the height h7 is 12 mm. The left and right ends of the front surface of the welding cover 2 have chamfer angles θ1 = 45°, and the chamfer dimension c1 is 135.5 mm. The left and right ends of the rear surface of the welding cover 2 have chamfer radii r1 = 6 mm; the chamfer radius at the connection between the chamfer of the welding cover 2 and the left and right ends of the front surface of the welding cover 2 is r1 = 6 mm; the chamfer radius at the connection between the left chamfer of the welding cover 2 and the left end face of the welding cover 2 is r1 = 6 mm; the chamfer radius at the connection between the right chamfer of the welding cover 2 and the right end face of the welding cover 2 is r1 = 6 mm.

[0083] The width a3 of the sealing plate 3 is 643 mm, the length b14 is 183.9 mm, and the height h6 is 5 mm. The left and right ends of the front surface of the sealing plate 3 are chamfered at an angle of θ1 = 45°, and the chamfer size is c1 = 135.5 mm. The chamfer radius r1 at the left and right ends of the rear surface of the sealing plate 3 is 6 mm; the chamfer radius r1 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 6 mm; the chamfer radius r1 at the connection between the left chamfer of the sealing plate 3 and the left end face of the sealing plate 3 is 6 mm; the chamfer radius r1 at the connection between the right chamfer of the sealing plate 3 and the right end face of the sealing plate 3 is 6 mm.

[0084] The width a0 of the dielectric window 4 is 655 mm, the length b15 is 20.6 mm, and the height h3 is 94.2 mm; the first rectangular groove 411 is opened at a distance h8 = 13 mm from the upper surface of the dielectric 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 opened at a distance h8 = 13 mm from the upper surface of the dielectric 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 opened at a distance h10 = 17 mm from the lower surface of the dielectric window 4, with a width a5 = 640 mm, a height h9 = 3 mm, and a depth s5 = 9 mm; the fourth rectangular groove 414 is opened at a distance h10 = 17 mm from the lower surface of the dielectric window 4, with a width a5 = 640 mm, a height h9 = 3 mm, and a depth s5 = 9 mm; the first rectangular plate 421 has a width a5 = 640 mm, a length s5 = 9 mm, and a height h9 = 3 mm; the second rectangular plate 422 has a width a5 = 640 mm, a length s5 = 9 mm, and a height h9 = 3 mm; the third rectangular plate 423 has a width a5 = 640 mm, a length s5 = 9 mm, and a height h9 = 3 mm; the fourth rectangular plate 424 has a width a5 = 640 mm, a length s5 = 9 mm, and a height h9 = 3 mm;

[0085] The left rectangular through slot 431 is opened at a position s6 = 3.5 mm from the left end face of the dielectric window 4. The width s3 of the left rectangular through slot 431 is 3 mm, the height h11 is 66.2 mm, the depth b15 is 20.6 mm, and the chamfer radius r12 at the upper and lower ends is 1.5 mm; the width s3 of the fifth rectangular plate 425 is 3 mm, the length b16 is 8.8 mm, the height h11 is 66.2 mm, and the chamfer radius r12 at the upper and lower ends is 1.5 mm; the width s3 of the sixth rectangular plate 426 is 3 mm, the length b16 is 8.8 mm, the height h11 is 66.2 mm, and the chamfer radius r12 at the upper and lower ends is 1.5 mm; the right rectangular through slot 432 is opened at a position s6 = 3.5 mm from the right end face of the dielectric window 4. The width s3 of the right rectangular through slot 432 is 3 mm, the height h11 is 66.2 mm, the depth b15 is 20.6 mm, and the chamfer radius r12 at the upper and lower ends is 1.5 mm; the width s3 of the seventh rectangular plate 427 is 3 mm, the length b16 is 8.8 mm, the height h11 is 66.2 mm, and the chamfer radius r12 at the upper and lower ends is 1.5 mm; the width s3 of the eighth rectangular plate 428 is 3 mm, the length b16 is 8.8 mm, the height h11 is 66.2 mm, and the chamfer radius r12 at the upper and lower ends is 1.5 mm; the number N5 of the triangular prism slots 44 is 640, the side length s7 of the upper end face of the prism slot 44 is 1 mm, and the height h4 of the triangular prism slot 44 is 58.2 mm.

[0086] Figure 10 It is the result of the electric field distribution characteristics obtained by simulating Example 1 using the electromagnetic simulation software CST Studio Suit when the input microwave power is 0.5 W at the operating frequency point of 4.3 GHz in Example 1. Figure 10 On the left is the electric field intensity distribution diagram of Example 1 and the external antenna emission system. Among them, the electric field intensity distribution of the antenna emission system externally connected to Example 1 within the rectangular frame, and the part outside the rectangular frame is the electric field intensity distribution of Example 1; Figure 10 On the right is the specific numerical diagram of the electric field intensity (the color of the electric field intensity on the left corresponds to the specific numerical value of the electric field intensity on the right). From Figure 10 As can be seen from the left, the electric field distribution changes from one path to sixteen paths (see within the rectangular frame), and there is no electric field in the remaining areas except the positions where Example 1 and the external antenna emission system are located, indicating that there is no microwave leakage; it can be concluded that Example 1 can effectively achieve a power distribution of one into sixteen, and ensure the sealing and vacuum state when Example 1 transmits microwaves to the external antenna emission system. Since the temperature change between 50 °C and -50 °C in the vacuum state does not affect the microwave transmission characteristics, Example 1 is placed under the conditions of 50 °C and -50 °C respectively for experimental verification, and it is proved that Example 1 can still complete power synthesis and distribution at 50 °C and -50 °C. As Figure 10 Shown by the specific numerical value of the electric field on the right, inside Example 1 (from Figure 10Looking from the right side, the color of the maximum electric field strength is red. Comparing with the left side, the maximum electric field strength is at the connection between the waveguide port and the longitudinal part of the first-level T-shaped power divider cavity. The maximum electric field strength E 0.5W is 976 V / m. According to the electric field breakdown threshold E b under vacuum conditions, which is 700 kV / m, from it can be calculated that the power capacity P of Example 1 under vacuum conditions b can reach 2.57 GW. The longest length of Example 1 is 204.9 mm, and the widest width is 655 mm. These simulation results show that Example 1 has a compact structure, a small volume, a large power capacity, and can be applied in the low temperature of -50°C and the high temperature of 50°C, and has extremely high practical value in technical fields such as 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 is composed of a power divider body (1), a welding cover (2), a sealing plate (3), and a dielectric window (4); the end of the high-power microwave vacuum window sealed power divider close to the microwave source is defined as the input end, and the end away from the microwave source is defined as the output end; when realizing the power division function, the power divider body (1) has an input port connected to an external microwave source module to receive microwaves to be power-divided output by the microwave source module; the power divider body (1) has N output ports, namely the first output port, the second output port, ..., the nth output port, ..., the Nth output port, connected to the dielectric window (4), and the dielectric window (4) is externally connected to the antenna transmission system; when realizing the synthesis function, the power divider body (1) has N output ports connected to the dielectric window (4), and the dielectric window (4) is externally connected to the antenna transmission system; when realizing the synthesis function, the power divider body (1) has N output ports connected to the dielectric window (4), and the dielectric window (4) is externally connected to the antenna transmission system; when realizing the synthesis function, the power divider body (1) has N output ports connected to the dielectric window (4), and the dielectric window (4) is externally connected to the antenna transmission system. N output ports become input ports, and are designated as the first input port, the second input port, ..., the nth input port, ..., the Nth input port, which are connected to the dielectric window (4); the dielectric window (4) is externally connected to N microwave source modules to receive microwaves to be power synthesized output by the microwave source modules; the input port on the power divider body (1) becomes an output port, which is externally connected to an antenna transmission system; N is a positive integer and is equal to the power fraction to be achieved; when power distribution is achieved, a central axis OO' is drawn on the upper surface of the sealing plate (3) along the input to output direction, point O is on the input end face of the high-power microwave vacuum window sealed power divider, point O' is on the dielectric window (4), and the high-power microwave vacuum window sealed power divider is symmetrical about the central axis OO'; passing through point O A horizontal axis PP' is drawn on the upper surface of the sealing plate (3), PP' is perpendicular to OO', P is the left end, and P' is the right end; the end close to the central axis OO' in the vertical direction is the upper end, and the end away from the central axis OO' is the lower end; along the central axis OO', the end close to point O is the front end, and the end close to point O' is the rear end; the power divider body (1) has an input port at point O, and N output ports are opened near point O' to connect to the dielectric window (4); the power divider body (1) is a rectangular parallelepiped with chamfered angles at both ends of the front surface. If the input port of the power divider body (1) receives microwaves from the microwave source module, the power divider body (1) distributes the microwaves with equal power; if the N input ports of the power divider body (1) near point O' receive microwaves from the dielectric window (4) The power divider body (1) receives microwaves inputted by N microwave source modules and synthesizes the input microwaves; the welding cover (2) is a rectangular parallelepiped plate with chamfered angles at both ends of the front surface, the chamfered angles of the front surface match the chamfered angles at both ends of the front surface of the power divider body (1), and seals the upper surface of the power divider body (1), thereby ensuring that the input microwaves propagate in the power divider body (1) and reducing microwave leakage; the sealing plate (3) is of the same shape as the welding cover (2), and is also a rectangular parallelepiped plate with chamfered angles at both ends of the front surface, and is located on the upper surface of the welding cover (2). The function of the sealing plate (3) is to further seal the upper surface of the power divider body (1) on the basis of the welding cover (2) sealing the upper surface of the power divider body (1), 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 transmit N groups of microwaves received from the N output ports of the power divider body (1) after power division to N external antenna transmission systems during power division, and to transmit microwaves received from 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; The power divider body (1) is made of metal material and is composed of a power divider filling body (11) and a main body shell (13). The main body shell (13) is composed of a shell bottom plate (131), a shell middle plate (132), a shell upper plate (133) and a waveguide port (134). The power divider filling body (11) is located between a welding cover (2) and the shell bottom plate (131) of the main body shell (13), and the outer side wall is wrapped by the main body shell (13). The power divider filling body (11) is located between the welding cover (2) and the shell bottom plate (131). A power division channel (12) is dug in the power division filling body (11) between the main body shells (13); the power division channel (12) is divided into a primary power division channel (121), a secondary power division channel (122), a tertiary power division channel (123), and a quaternary power division channel (124) according to function; the primary power division channel (121) and the secondary power division channel (122) are connected, and the tertiary power division channel (123) and the quaternary power division channel (124) are arranged in sequence from O to O', and are connected to each other from front to back; The upper plate (133) of the housing is closest to OO', the upper surface of the middle plate (132) of the housing is welded to the lower surface of the upper plate (133) of the housing, the bottom plate (131) of the housing is farthest from OO', the upper surface of the bottom plate (131) of the housing is welded to the lower surface of the middle plate (132) of the housing, and the rear surface of the waveguide port (134) is welded to the front surface of the middle plate (132) of the housing; the bottom plate (131) of the housing is a rectangular parallelepiped plate with a width of a3, a length of b1, and a height of h1, and the bottom plate (131) of the housing is axially symmetrical The structure comprises a shell bottom plate (131) having chamfered left and right ends at the front surface, the chamfer angle being θ1 and the chamfer size being c1; the connection between the chamfered surface of the shell bottom plate (131) and the left and right ends of the front surface of the shell bottom plate (131) is rounded, and the chamfer radius is r1; the connection between the surface at the left end of the chamfered surface of the shell bottom plate (131) and the left end surface of the shell bottom plate (131) is rounded, and the chamfer radius is r1; the connection between the surface at the right end of the chamfered surface of the shell bottom plate (131) and the right end surface of the shell bottom plate (131) is rounded, and the chamfer radius is r1; The 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 rectangular parallelepiped plates, with a height of h3 and a thickness of s1. The lower end of the rear surface of the transverse middle plate (1321) is welded to the front surface of the shell bottom plate (131). The transverse middle plate (1321) is welded to the front surface of the shell bottom plate (131). 21) has a width of a2; the length of the left inclined middle plate (1322) and the right inclined middle plate (1323) are both L1; the lower end of the right surface of the left longitudinal middle plate (1324) is welded to the left surface of the shell bottom plate (131), the lower end of the left surface of the right longitudinal middle plate (1325) is welded to the right surface of the shell bottom plate (131), and the length of the left longitudinal middle plate (1324) and the right longitudinal middle plate (1325) are both b2; 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 left inclined middle plate (1322) is rounded; the left end surface of the left inclined middle plate (1322) is welded with the front end surface of the left longitudinal middle plate (1324), and the inner surface of the connection is rounded; the right end surface of the right inclined middle plate (1323) is welded with the front end surface of the right longitudinal middle plate (1325), and the inner surface of the connection is chamfered; the upper plate (133) of the outer shell is a rectangular plate with a width of a3, a length of b3, and a height of h2; the left end surface of the upper plate (133) of the outer shell is welded with the right end surface of the left longitudinal middle plate (1324), and the connection away from O' is rounded; the waveguide port (134) is symmetrical about the OO' axis, and the rear end surface of the waveguide port (134) is welded on the horizontal On the front end surface of the middle plate (1321), the outer surface of the welding position is rounded; the waveguide port (134) is a rectangular plate with a width of a4, a length of b4, and a height of h3; the waveguide port (134) and the transverse middle plate (1321) are provided with a through hole (1341) along the OO' direction, which serves as an input port of the high-power microwave vacuum window sealed power divider during power distribution; the through hole (1341) has a width of d, a depth of b3, and a height of h4; the distance between the lower surface of the through hole (1341) and the lower surface of the waveguide port (134) is equal to h1, and the distance between the upper surface of the through hole (1341) and the upper surface of the waveguide port (134) is equal to h2; The horizontal distance from the rear surface of the upper plate (133) of the shell to QQ' is s5, and the bottom plate (131) of the shell opens a first groove (1311) vertically downward from the upper surface, with a depth of h5; the first groove (1311) 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 (1311) are rounded; the distance from the rear end face of the first groove (1311) to the rear end face of the bottom plate (131) of the shell is equal to s1, 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 equal to s2; the upper plate (133) of the shell opens a second groove (1331) vertically upward from the lower surface, with a depth of h6; the second groove (1331) is a rectangular cavity, with a width equal to a5 and a length equal to s3; The upper surface of the second groove (1331) has rounded corners at both ends; the distance between the rear surface of the second groove (1331) and the rear surface of the upper plate (133) of the housing is equal to s1; the second groove (1331) is symmetrical about the OO' axis; the distance between the left end surface of the second groove (1331) and the left surface of the left longitudinal middle plate (1324) is equal to s2; the distance between the right end surface of the second groove (1331) and the right surface of the right longitudinal middle plate (1325) is equal to s2; the power division filling body (11) is a rectangular plate made of metal material; the power division filling body (11) has a width of a3, a length of b1, and a height of h4; the power division filling body (11) is an axisymmetric structure; the front surface of the power division filling body (11) The two ends of the power division filling body (11) are chamfered; the lower surface of the power division filling body (11) is welded to the upper surface of the shell bottom plate (131); the front surface of the power division filling body (11) is welded to the rear surface of the transverse middle plate (1321); the left end chamfered surface of the front surface of the power division filling body (11) is welded to the right surface of the left inclined middle plate (1322); the right end chamfered surface of the front surface of the power division filling body (11) is welded to the left surface of the right inclined middle plate (1323); the lower surface of the power division filling body (11) is the same shape as the upper surface of the shell bottom plate (131); the lower surface of the power division filling body (11) is welded to the upper surface of the shell bottom plate (131); the front surface of the power division filling body (11) is welded to the transverse middle plate (13 21), the left end chamfered angled surface of the front surface of the power division filling body (11) is welded to the right surface of the left inclined middle plate (1322), the right end chamfered angled surface of the front surface of the power division filling body (11) is welded to the left surface of the right inclined middle plate (1323), the left end surface of the power division filling body (11) is welded to the right surface of the left longitudinal middle plate (1324), and the right end surface of the power division filling body (11) is welded to the left surface of the right longitudinal middle plate (1325); the rear end surface of the upper plate (133) of the outer shell is flush with the rear end surface of the power division filling body (11), and the lower surface of the upper plate (133) of the outer shell is welded to the upper surface of the power division filling body (11); the front end surface of the welding cover (2) is flush with the front end of the power division filling body (11). The lower surface of the welding cover (2) is welded to the upper surface of the power division filling body (11); the lower surface of the power division filling body (11) is completely identical in shape to the upper surface of the shell bottom plate (131); the lower surface of the power division filling body (11) is welded to the upper surface of the shell bottom plate (131); the lower surface of the power division filling body (11) is wrapped by the shell bottom plate (131); the power division filling body (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); and the upper surface of the power division filling body (11) is wrapped by the shell upper plate (133) and the welding cover (2); The primary power division channel (121) is an axisymmetric structure. The primary power division channel (121) is composed of N1 primary T-shaped power division cavities (1211) and N1 primary trapezoidal bodies (1212). The primary trapezoidal bodies (1212) are made of metal materials. Each primary T-shaped power division cavity (1211) has a primary trapezoidal body (1212). The lower surface of the primary trapezoidal body (1212) is welded to the upper surface of the housing bottom plate (131). The upper surface of the primary 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 primary trapezoidal body (1212) is welded to the rear end surface of the transverse part of the primary T-shaped power division cavity (1211). The primary T-shaped power division cavity (1211) is composed of a transverse part rectangular parallel to the OO' axis. The body cavity and the longitudinal part rectangular body cavity parallel to the PP' axis are perpendicularly intersected to form a T-shaped body cavity, i.e., the transverse part of the first-stage T-shaped power division cavity (1211) has a width of a1, a length of d, and a depth of h4; the longitudinal part of the first-stage T-shaped power division cavity (1211) has a width of d, a length of b5, and a depth of h4; the left and right ends of the front surface of the transverse part of the first-stage T-shaped power division cavity (1211) are chamfered; the connection between the chamfered rear surface of the first-stage T-shaped power division cavity (1211) and the left end surface of the transverse part of the first-stage T-shaped power division cavity (1211) is rounded; the connection between the chamfered rear surface of the first-stage T-shaped power division cavity (1211) and the right end surface of the transverse part of the first-stage T-shaped power division cavity (1211) is rounded; the chamfered front surface of the first-stage T-shaped power division cavity (1211) is rounded; The connection between the first-stage T-shaped power splitting cavity (1211) and the front surface of the transverse part of the first-stage T-shaped power splitting cavity (1211) is rounded; the horizontal distance from the left end surface of the longitudinal part of the first-stage T-shaped power splitting cavity (1211) to the left end surface of the transverse part of the first-stage T-shaped power splitting cavity (1211) is a10, and the horizontal distance from the right end surface of the longitudinal part of the first-stage T-shaped power splitting cavity (1211) to the right end surface of the transverse part of the first-stage T-shaped power splitting cavity (1211) is equal to a10; the front end surface of the transverse part of the first-stage T-shaped power splitting cavity (1211) and the rear end surface of the longitudinal part of the first-stage T-shaped power splitting cavity (1211) are rounded at both ends of the connection; the horizontal distance from the left end surface of the transverse part of the first-stage T-shaped power splitting cavity (1211) to the right surface of the left inclined middle plate (1322) is a6, and the transverse part of the first-stage T-shaped power splitting cavity (1211) is The horizontal distance from the right end face to the left surface of the right inclined middle plate (1323) is equal to a6; each first-stage T-shaped power splitting cavity (1211) has a first-stage trapezoidal body (1212), the first-stage trapezoidal body (1212) is an isosceles trapezoidal body, and the long side face of the first-stage trapezoidal body (1212), i.e., the rear end face, is connected with the transverse part of the first-stage T-shaped power splitting cavity (1211) at both ends with rounded corners; the long side length of the trapezoidal face of the first-stage trapezoidal body (1212) is a7, the short side length of the trapezoidal face is a8, the height of the trapezoidal face is b6, the height of the first-stage trapezoidal body (1212) is equal to h4, and the angle of the acute internal angle is θ2; the left inclined face of the first-stage trapezoidal body (1212) is connected with the front end face with a rounded corner, and the right inclined face of the first-stage trapezoidal body (1212) is connected with the front end face with a rounded corner;The distance from the left end of the rear end surface of the primary trapezoidal body (1212) to the left end of the horizontal part of the primary T-shaped power splitting cavity (1211) is a9, and the distance from the right end of the rear end surface of the primary trapezoidal body (1212) to the right end of the horizontal part of the primary T-shaped power splitting cavity (1211) is equal to a9; The secondary power division channel (122) is an axisymmetric structure. The secondary power division channel (122) is composed of N2 secondary T-shaped power division cavities (1221) and N2 secondary trapezoidal bodies (1222). The secondary trapezoidal bodies (1222) are made of metal materials. Each secondary T-shaped power division cavity (1221) has a secondary trapezoidal body (1222). The lower surface of the secondary trapezoidal body (1222) is welded to the upper surface of the housing bottom plate (131). The upper surface of the secondary trapezoidal body (1222) is welded to the lower surface of the welding cover (2). The long side face, i.e., the rear end face, of the first trapezoidal body (1222) is welded to the rear end face of the transverse part of the second-stage T-shaped power division cavity (1221); the second-stage T-shaped power division cavity (1221) is composed of a transverse rectangular body cavity parallel to the OO' axis and a longitudinal rectangular body cavity parallel to the PP' axis, which are perpendicularly intersected, i.e., T-shaped, the transverse part of the second-stage T-shaped power division cavity (1221) has a width of a11, a length of d, and a depth of h4, and the longitudinal part of the second-stage T-shaped power division cavity (1221) has a width of d, a length of b7, and a depth of h4; The transverse part of the secondary T-shaped power splitting cavity (1221) is chamfered at the left and right ends of the front end surface; The connection between the chamfered rear surface of the secondary T-shaped power division chamber (1221) and the left end surface of the transverse part of the secondary T-shaped power division chamber (1221) is rounded, the connection between the chamfered rear surface of the secondary T-shaped power division chamber (1221) and the right end surface of the transverse part of the secondary T-shaped power division chamber (1221) is rounded, and the connection between the chamfered front surface of the secondary T-shaped power division chamber (1221) and the two ends of the front surface of the transverse part of the secondary T-shaped power division chamber (1221) is rounded; the horizontal distance from the left end surface of the longitudinal part of the secondary T-shaped power division chamber (1221) closest to the left inclined middle plate (1322) to the left end surface of the transverse part of the secondary T-shaped power division chamber (1221) is a12, and the horizontal distance from the right end surface of the longitudinal part of the secondary T-shaped power division chamber (1221) to the right end surface of the transverse part of the secondary T-shaped power division chamber (1221) is a2. The horizontal distance between the left end face of the horizontal part of the secondary T-shaped power splitting cavity (1221) and the right end face of the horizontal part of the secondary T-shaped power splitting cavity (1221) is equal to a13; the front end face of the longitudinal part of the secondary T-shaped power splitting cavity (1221) is rounded at the end closer to the left and right end faces of the transverse part of the secondary T-shaped power splitting cavity (1221); the front end face of the transverse part of the secondary T-shaped power splitting cavity (1221) and the rear end face of the longitudinal part of the secondary T-shaped power splitting cavity (1221) are rounded at both ends of the connection; the horizontal distance between the left end face of the transverse part of the secondary T-shaped power splitting cavity (1221) closest to the left inclined middle plate (1322) and the right surface of the left inclined middle plate (1322) is a14, and the horizontal distance between the right end face of the transverse part of the secondary T-shaped power splitting cavity (1221) closest to the right inclined middle plate (1323) and the left surface of the right inclined middle plate (1323) is equal to a14; the horizontal distance between the two adjacent secondary T-shaped power splitting cavities (1221) and the right end face of the transverse part of the secondary T-shaped power splitting cavity (1221) is equal to a14; the horizontal distance between the left end face of the transverse part of the secondary T-shaped power splitting cavity (1221) and the right surface of the right inclined middle plate (1323 ... The cavity (1221) satisfies the axisymmetric arrangement, and the horizontal distance between the right end face of the transverse part of the secondary T-shaped power splitting cavity (1221) and the left end face of the transverse part of the secondary T-shaped power splitting cavity (1221) adjacent to the right is a15; each secondary T-shaped power splitting cavity (1221) has a secondary trapezoidal body (1222), and 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 part of the secondary T-shaped power splitting cavity (1221), and the two ends of the connection are chamfered; the secondary trapezoidal body (1222) is an isosceles trapezoidal body, and 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, the height of the secondary trapezoidal body (1222) is equal to h4, and the acute internal angle is The angle is θ3; the connection between the left inclined surface of the secondary trapezoidal body (1222) and the front end surface is rounded, and the connection between the right inclined surface of the secondary trapezoidal body (1222) and the front end surface is rounded; the distance from the left end of the rear end surface of the secondary trapezoidal body (1222) closest to the left inclined middle plate (1322) to the left end surface of the horizontal part of the secondary T-shaped power splitting cavity (1221) is a18, and the distance from the right end of the rear end surface of the secondary trapezoidal body (1222) closest to the left inclined middle plate (1322) to the right end surface of the horizontal part of the secondary T-shaped power splitting cavity (1221) is equal to a19; two adjacent secondary trapezoidal bodies (1222) meet the axial symmetric arrangement, and the horizontal distance between the right end of the rear end surface of the secondary trapezoidal body (1222) and the left end of the rear end surface of the adjacent secondary trapezoidal body (1222) on the right is a20; The three-level power division channel (123) is an axisymmetric structure. The three-level power division channel (123) is composed of N3 three-level T-shaped power division cavities (1231) and N3 three-level trapezoidal bodies (1232). The three-level trapezoidal bodies (1232) are made of metal materials. Each three-level T-shaped power division cavity (1231) has a three-level trapezoidal body (1232). The lower surface of the three-level trapezoidal body (1232) is welded to the upper surface of the housing bottom plate (131). The upper surface of the three-level trapezoidal body (1232) is welded to the lower surface of the welding cover (2). The long side face, i.e., the rear end face, of the trapezoidal body (1232) is welded to the rear end face of the transverse part of the three-stage T-shaped power division cavity (1231). The three-stage T-shaped power division cavity (1231) is composed of a transverse rectangular body cavity parallel to the OO' axis and a longitudinal rectangular body cavity parallel to the PP' axis, which are perpendicularly intersected, i.e., T-shaped. The transverse part of the three-stage T-shaped power division cavity (1231) has a width of a21, a length of d, and a depth of h4. The longitudinal part of the three-stage T-shaped power division cavity (1231) has a width of d, a length of b7, and a depth of h4. The front end surface of the transverse part of the three-stage T-shaped power splitting cavity (1231) is chamfered at both ends; the connection between the chamfered rear surface of the three-stage T-shaped power splitting cavity (1231) and the left end surface of the transverse part of the three-stage T-shaped power splitting cavity (1231) is rounded, the connection between the chamfered rear surface of the three-stage T-shaped power splitting cavity (1231) and the right end surface of the transverse part of the three-stage T-shaped power splitting cavity (1231) is rounded, and the connection between the chamfered front surface of the three-stage T-shaped power splitting cavity (1231) and the two ends of the front surface of the transverse part of the three-stage T-shaped power splitting cavity (1231) is rounded; the horizontal distance from the left end surface of the longitudinal part of the three-stage T-shaped power splitting cavity (1231) closest to the left inclined middle plate (1322) to the left end surface of the transverse part of the three-stage T-shaped power splitting cavity (1231) is a22, and the connection between the left end surface of the longitudinal part of the three-stage T-shaped power splitting cavity (1231) and the left inclined middle plate (1322) is a23. The horizontal distance from the right end face of the longitudinal part of the three-stage T-shaped power dividing chamber (1231) closest to the middle plate (1322) to the right end face of the transverse part of the three-stage T-shaped power dividing chamber (1231) is a23; the front end face of the longitudinal part of the three-stage T-shaped power dividing chamber (1231) is rounded at the end closer to the left and right end faces of the transverse part of the three-stage T-shaped power dividing chamber (1231); the front end face of the transverse part of the three-stage T-shaped power dividing chamber (1231) and the rear end face of the longitudinal part of the three-stage T-shaped power dividing chamber (1231) are rounded at both ends of the connection; the horizontal distance from the left end face of the transverse part of the three-stage T-shaped power dividing chamber (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 left end face of the transverse part of the three-stage T-shaped power dividing chamber (1231) closest to the right inclined middle plate (1323) is a25. The horizontal distance from the right end face of the transverse part of the three-level T-shaped power division cavity (1231) to the right end face of the right inclined middle plate (1323) is equal to a24; two adjacent three-level T-shaped power division cavities (1231) are arranged axially symmetrically, and the horizontal distance from the right end face of the transverse part of the three-level T-shaped power division cavity (1231) to the left end face of the transverse part of the adjacent three-level T-shaped power division cavity (1231) on the right is a25; each three-level T-shaped power division cavity (1231) has a three-level trapezoidal body (1232), and the long side surface, i.e., the rear end, of the three-level trapezoidal body (1232) is closely welded to the rear end face of the transverse part of the three-level T-shaped power division cavity (1231), and the two ends of the connection are rounded; the three-level trapezoidal body (1232) is an isosceles trapezoidal body, and the three-level trapezoidal body (1232) The length of the long side of the isosceles trapezoidal surface is a26, the length of the short side of the isosceles trapezoidal surface is a27, the height of the isosceles trapezoidal surface is b9, the height of the three-level trapezoidal body (1232) is equal to h4, and the angle of the acute internal angle is θ4; the connection between the left inclined surface and the front end surface of the three-level trapezoidal body (1232) is rounded, and the connection between the right inclined surface and the front end surface of the three-level trapezoidal body (1232) is rounded; the distance from the left end of the rear end surface of the three-level trapezoidal body (1232) closest to the left inclined middle plate (1322) to the left end surface of the transverse part of the three-level T-shaped power splitting cavity (1231) is a28, and the distance from the right end of the rear end surface of the three-level trapezoidal body (1232) closest to the left inclined middle plate (1322) to the right end surface of the transverse part of the three-level T-shaped power splitting cavity (1231) is equal to a29;Two adjacent three-level trapezoidal bodies (1232) are arranged in an axisymmetric manner, and the horizontal distance between the right end of the rear end surface of the three-level trapezoidal body (1232) and the left end of the rear end surface of the adjacent three-level trapezoidal body (1232) on the right is a30; The four-level power division channel (124) is an axisymmetric structure. The four-level power division channel (124) is composed of N4 four-level T-shaped power division cavities (1241) and N4 four-level capsule columns (1242). The four-level capsule columns (1242) are made of metal materials. Each four-level T-shaped power division cavity (1241) has a four-level capsule column (1242). The lower surface of the four-level capsule column (1242) is welded to the upper surface of the shell bottom plate (131), and a part of the upper surface of the four-level capsule column (1242) is welded to the lower surface of the shell upper plate (133). The four-level T-shaped power division cavity (1241) is composed of a transverse rectangular cavity parallel to the OO' axis and a longitudinal rectangular cavity parallel to the PP' axis, which are perpendicularly intersected, that is, T-shaped; the width of the transverse part of the four-stage T-shaped power division cavity (1241) is a31, the length is b10, and the depth is h4; the width of the longitudinal part of the four-stage T-shaped power division cavity (1241) is equal to d, the length is equal to b11, and the depth is equal to h4; the front end surface of the transverse part of the four-stage T-shaped power division cavity (1241) is chamfered at both ends; a plane parallel to the left end surface of the transverse part of the four-stage T-shaped power division cavity (1241) and having a spacing of r9 from the left end surface of the transverse part of the four-stage T-shaped power division cavity (1241) is rounded at the intersection with the rear surface of the left chamfer of the four-stage T-shaped power division cavity (1241); a plane parallel to the left end surface of the transverse part of the four-stage T-shaped power division cavity (1241) and having a spacing of r9 from the left end surface of the transverse part of the four-stage T-shaped power division cavity (1241) is rounded at the intersection with the left chamfer of the four-stage T-shaped power division cavity (1241); a plane parallel to the left end surface of the transverse part of the four-stage T-shaped power division cavity (1241) and having a spacing of r9 from the left end surface of the transverse part of the four-stage T-shaped power division cavity (1241) is rounded at the intersection with the left chamfer of the four-stage T-shaped power division cavity (1241). A plane equal to r9 is rounded at a corner 1411 at the intersection with the left end face of the four-stage T-shaped power splitting cavity (1241); a plane parallel to the right end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) and having a distance equal to r9 from the right end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) is rounded at the intersection with the right chamfered rear surface of the four-stage T-shaped power splitting cavity (1241); a plane parallel to the right end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) and having a distance equal to r9 from the right end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) is rounded at a corner 1412 at the intersection with the right end face of the four-stage T-shaped power splitting cavity (1241); a plane from the left end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) to the four-stage T-shaped power splitting cavity (1241) is rounded at a corner 1413; a plane from the left end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) to the four-stage T-shaped power splitting cavity (1241) is rounded at a corner 1414; a plane from the right end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) to the right end face of the four-stage T-shaped power splitting cavity (1241) is rounded at a corner 1415; a plane from the right end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) to the right end face of the four-stage T-shaped power splitting cavity (1241) is rounded at a corner 1416; a plane from the right end face of the transverse part of the four-stage 1) The horizontal distance from the left end face of the transverse part is equal to c4, and the horizontal distance from the right end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) to the right end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) is equal to c4; the front end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) and the rear end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) are rounded at both ends of the connection; the horizontal distance from the left end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) closest to the left longitudinal middle plate (1324) to the right end face of the left longitudinal middle plate (1324) is s4, and the horizontal distance from the right end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) closest to the right longitudinal middle plate (1325) to the left end face of the right longitudinal middle plate (1325) is equal to s4;The four-stage T-shaped power splitting chamber (1241) closest to the left longitudinal middle plate (1324) is rounded at the intersection of the rounded corner 1411 and the left longitudinal middle plate (1324); the four-stage T-shaped power splitting chamber (1241) closest to the right longitudinal middle plate (1325) is rounded at the intersection of the rounded corner 1412 and the right longitudinal middle plate (1325); the front end surface of the longitudinal part of the four-stage T-shaped power splitting chamber (1241) closest to the left longitudinal middle plate (1324) is rounded at the right end; the front end surface of the longitudinal part of the four-stage T-shaped power splitting chamber (1241) closest to the right longitudinal middle plate (1325) is rounded at the right end. The front end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) which is the second closest to the left longitudinal middle plate (1324) is rounded at the left end; the front end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) which is the second closest to the right longitudinal middle plate (1325) is rounded at the right end; the transverse parts of two adjacent four-stage T-shaped power splitting cavities (1241) are interconnected, and except for the two four-stage T-shaped power splitting cavities (1241) which are the closest to the left longitudinal middle plate (1324) and the two four-stage T-shaped power splitting cavities (1241) which are the closest to the right longitudinal middle plate (1325), the other two adjacent four-stage T-shaped power splitting cavities (1241) are connected to each other. 1) An axially symmetrical arrangement is satisfied; each four-stage T-shaped power splitting cavity (1241) has 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 splitting cavity (1241) is a32; 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 splitting cavity (1241) is equal to a32; the width of the four-stage capsule column (1242) is a33, the length is b12, the height is equal to h4, and the two ends of the four-stage capsule column (1242) are rounded; the front top of the four-stage capsule column (1242) is The distance to the front end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) is b13; the horizontal distances between adjacent four-stage capsule columns (1242) are equal, and the horizontal distance between the right end face of the four-stage capsule column (1242) and the left end face of the adjacent four-stage capsule column (1242) on the right is a34; the transverse part of each four-stage T-shaped power splitting cavity (1241) is separated by the four-stage capsule column (1242) located therein, forming two mutually connected channels, i.e., two ports, which serve as output ports during power distribution; N4 T-shaped power splitting cavities 1241 have a total of N output ports; The welding cover (2) is made of metal material and seals the power divider body (1) to ensure that the input microwave propagates in the power divider body. The width of the welding cover (2) is equal to a3, the length is b14, and the height is h7. The lower surface of the welding cover (2) is welded to the upper surface of the power divider filling body (11). The welding cover (2) is an axisymmetric structure, the left and right ends of the front surface of the welding cover are chamfered, and the left and right ends of the rear surface of the welding cover (2) are rounded. The sealing plate (3) is made of 30% glass fiber PEEK material, with a width equal to a3, a length equal to b14, and a height equal to h6; the sealing plate (3) has the same shape as the welding cover (2), and the lower surface of the sealing plate (3) is fixed to the upper surface of the welding cover (2) by screws; The dielectric window (4) is a rectangular cavity made of 30% glass fiber PEEK material, with a width equal to a0, a length equal to b15, and a height equal to h3. The front surface of the dielectric window (4) is fixed to the rear surface of the shell 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 shell upper plate (133) of the power divider body (1) by screws; the front surface of the dielectric window (4) is provided with a first rectangular groove (4) at a distance h8 from the upper surface of the dielectric window (4) and in the direction of the rear surface of the dielectric window (4). 11), with a depth of s5; the first rectangular groove (411) has a width of a5 and a height of h9; the rear surface of the dielectric window (4) is provided with a second rectangular groove (412) at a distance h8 from the upper surface of the dielectric window (4) and in a direction toward the front surface of the dielectric window (4), with a depth of s5; the second rectangular groove (412) has a width of a5 and a height of h9; the front surface of the dielectric window (4) is provided with a third rectangular groove (413) at a distance h10 from the lower surface of the dielectric window (4) and in a direction toward the rear surface of the dielectric window (4), with a depth of s5; the third rectangular groove (414) is provided with a depth of s5; the third rectangular groove (415) is provided with a depth of s5; the third rectangular groove (416) is provided with a depth of s5; the third rectangular groove (417) is provided with a depth of s5; the third rectangular groove (418) is provided with a depth of s5; the third rectangular groove (419) is provided with a depth of s5; the third rectangular groove (411) is provided with a depth of s5; the third rectangular groove (411) is provided with a depth of s5; the third rectangular groove (412) is provided with a depth of s5; the third rectangular groove (413) is provided with a depth of s5; the third rectangular groove (419) is provided with a depth of s5; the third rectangular groove (411) is provided with a depth of s5; the third rectangular groove (412) is provided with a depth of a5; the second rectangular groove (412) is provided with a depth of a5; the third rectangular groove (413) is provided with a depth of s5; The width of the rectangular groove (413) is equal to a5, and the height is equal to h9; the rear surface of the dielectric window (4) is provided with a fourth rectangular groove (414) at a distance h10 from the lower surface of the dielectric window (4) and in a direction toward the front surface of the dielectric window (4), and the depth is s5; the width of the fourth rectangular groove (414) is equal to a5, and the height is equal to h9; the first rectangular plate (421) is filled in the first rectangular groove (411), and the first rectangular plate (421) is a metal cuboid, and the width is equal to a5, the length is equal to s5, and the height is equal to h9; the second rectangular groove (412) is provided with a first rectangular plate (421) in the second rectangular groove (412). ) is filled with a second rectangular plate (422), the second rectangular plate (422) is a metal cuboid, the width is equal to a5, the length is equal to s5, and the height is equal to h9; the third rectangular plate (423) is filled in the third rectangular groove (413), the third rectangular plate (423) is a metal cuboid, the width is equal to a5, the length is equal to s5, and the height is equal to h9; the fourth rectangular plate (424) is filled in the fourth rectangular groove (414), the fourth rectangular plate (424) is a metal cuboid, the width is equal to a5, the length is equal to s5, and the height is equal to h9; The RR' plane coincides with the front surface of the first rectangular groove (411); the front surface of the dielectric window (4) is provided with a left rectangular through groove (431) at a distance s6 from the left end surface of the dielectric window (4) and in a direction toward the rear surface of the dielectric window (4); the left rectangular through groove (431) is a rectangular parallelepiped with a width equal to s3 and a height equal to h11; the left rectangular through groove (431) is chamfered at both ends; a fifth rectangular plate (425) is filled from the front surface of the left rectangular through groove (431) toward the rear surface; the fifth rectangular plate (425) is a metal chamfer with a width equal to s3, a length equal to b16 and a height equal to h11; the fifth rectangular plate (425) is chamfered at both ends; and the left rectangular through groove (431) is provided with a fifth rectangular plate (425) from the front surface of the left rectangular through groove (431) toward the rear surface. A sixth rectangular plate (426) is filled in the direction of 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; the sixth rectangular plate (426) is rounded at both ends; a right rectangular through groove (432) is opened in the front surface of the dielectric window (4) at a distance s6 from the right end surface of the dielectric window (4) toward the rear surface of the dielectric window (4), with a depth equal to b15, a width equal to s3, and a height equal to h11; the right rectangular through groove (432) is rounded at both ends; a seventh rectangular plate (427) is filled in from the front surface of the right rectangular through groove (432) toward the rear surface, the seventh rectangular plate (427) is a metal cuboid, with a width equal to The seventh rectangular plate (427) is rounded at both ends; an eighth rectangular plate (428) is filled from the rear surface of the right rectangular through groove (432) to the front surface, the eighth rectangular plate (428) is a metal cuboid, the width is equal to s3, the length is equal to b16, and the height is equal to h11; the eighth rectangular plate (428) is rounded at both ends; the front end surface of the dielectric window (4) is between the left rectangular through groove (431) and the right rectangular through groove (432), and N5 triangular prism grooves 44 are sequentially opened from left to right; the upper end surface of the triangular prism groove 44 coincides with the lower surface of the first rectangular groove (411), and the lower end surface of the triangular prism groove 44 coincides with the upper surface of the third rectangular groove (413). The upper end surface of the triangular prism groove 44 is an equilateral triangle with a side length of s7; the height of the triangular prism groove 44 is equal to h4; the function of the triangular prism groove 44 is to increase the power capacity; the microwave first directly passes 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 propagates 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); when power is combined, the rear surface of the dielectric window (4) is connected to N microwave source modules, and when power is distributed, the rear surface of the dielectric window (4) is connected to N antenna transmission systems.

2. The high power microwave vacuum window sealed power divider according to claim 1, characterized in that The number N of output ports on the power divider body (1) is an even number.

3. The high power microwave vacuum window sealed power divider according to claim 1, characterized in that The chamfer angles of the left and right ends of the front surface of the welding cover (2) are equal to θ1, and the chamfer radius is equal to c1; the chamfer radius of the rounded corners of the left and right ends of the rear surface of the welding cover is equal to r1, and the chamfer radius is equal to r1 at the connection between the left chamfer of the welding cover (2) and the left end surface of the welding cover (2); the chamfer radius is equal to r1 at the connection between the right chamfer of the welding cover (2) and the right end surface of the welding cover (2).

4. The high power microwave vacuum window sealed power divider according to claim 1, characterized in that The d and h4 are required to satisfy that the microwave of the rectangular waveguide TE 10 mode performs power combination and distribution in each level of T-shaped power dividing cavity, that is, λ0 / 2 < h4 < λ0 and d < λ0 / 2 are satisfied, where λ0 is the wavelength in free space.

5. The high power microwave vacuum window sealed power divider according to claim 1, characterized in that The acute internal angle θ2 of the first-level trapezoidal body (1212), the acute internal angle θ3 of the second-level trapezoidal body (1222), and the acute internal angle θ4 of the third-level trapezoidal body (1232) satisfy θ2<θ3<θ4.

6. The high power microwave vacuum window sealed power divider according to claim 1 or 4, characterized in that The length b5 of the longitudinal part of the primary T-shaped power dividing cavity (1211), the width a1 of the transverse part of the primary T-shaped power dividing cavity (1211), the horizontal distance a6 from the left end face of the transverse part of the primary T-shaped power dividing cavity (1211) to the right surface of the left inclined middle plate (1322), the horizontal distance a10 from the left end face of the longitudinal part of the primary T-shaped power dividing cavity (1211) to the left end face of the transverse part of the primary T-shaped power dividing cavity (1211), the length a7 of the long side of the trapezoidal surface of the primary trapezoidal body (1212), the length a8 of the short side of the trapezoidal surface, the height b6 of the trapezoidal surface, the angle θ2 of the acute internal angle, the distance a9 from the left end of the rear end face of the primary trapezoidal body (1212) to the left end of the transverse part of the primary T-shaped power dividing cavity (1211), the longitudinal part of the secondary T-shaped power dividing cavity (1221) b7, the width a11 of the transverse portion of the secondary T-shaped power splitting cavity (1221), the horizontal distance a12 from the left end face of the longitudinal portion of the secondary T-shaped power splitting cavity (1221) closest to the left inclined middle plate (1322) to the left end face of the transverse portion of the secondary T-shaped power splitting cavity (1221), the horizontal distance a13 from the right end face of the longitudinal portion of the secondary T-shaped power splitting cavity (1221) to the right end face of the transverse portion of the secondary T-shaped power splitting cavity (1221), the horizontal distance a14 from the left end face of the transverse portion of the secondary T-shaped power splitting cavity (1221) closest to the left inclined middle plate (1322) to the right surface of the left inclined middle plate (1322), the horizontal distance between the right end face of the transverse portion of the secondary T-shaped power splitting cavity (1221) and the left end face of the transverse portion of the secondary T-shaped power splitting cavity (1221) adjacent to the right a15, a horizontal distance between the long side length a16 of the isosceles trapezoidal surface of the secondary trapezoidal body (1222), a short side length a17 of the isosceles trapezoidal surface, a height b8 of the trapezoidal surface, an angle θ3 of the acute internal angle, a distance a18 from the left end of the rear end face of the secondary trapezoidal body (1222) closest to the left inclined middle plate (1322) to the left end face of the transverse portion of the secondary T-shaped power splitting cavity (1221), a distance a19 from the right end of the rear end face of the secondary trapezoidal body (1222) closest to the left inclined middle plate (1322) to the right end face of the transverse portion of the secondary T-shaped power splitting cavity (1221), a horizontal distance a20 between the right end of the rear end face of the secondary trapezoidal body (1222) and the left end of the rear end face of the adjacent secondary trapezoidal body (1222) on the right, and a transverse portion a21 of the tertiary T-shaped power splitting cavity (1231). width a21, horizontal distance a22 from the left end face of the longitudinal part of the three-stage T-shaped power dividing cavity (1231) closest to the left inclined middle plate (1322) to the left end face of the transverse part of the three-stage T-shaped power dividing cavity (1231), horizontal distance a23 from the right end face of the longitudinal part of the three-stage T-shaped power dividing cavity (1231) closest to the left inclined middle plate (1322) to the right end face of the transverse part of the three-stage T-shaped power dividing cavity (1231), horizontal distance a24 from the left end face of the transverse part of the three-stage T-shaped power dividing cavity (1231) closest to the left inclined middle plate (1322) to the left end face of the left inclined middle plate (1322), horizontal distance a25 from the right end face of the transverse part of the three-stage T-shaped power dividing cavity (1231) to the left end face of the transverse part of the three-stage T-shaped power dividing cavity (1231) adjacent to the right,The length a26 of the long side of the isosceles trapezoidal surface of the three-stage trapezoidal body (1232), the length a27 of the short side of the isosceles trapezoidal surface, the height b9 of the isosceles trapezoidal surface, the angle θ4 of the acute internal angle, the distance a28 from the left end of the rear end face of the three-stage trapezoidal body (1232) closest to the left inclined middle plate (1322) to the left end face of the transverse portion of the three-stage T-shaped power splitting cavity (1231), the distance a29 from the right end of the rear end face of the three-stage trapezoidal body (1232) closest to the left inclined middle plate (1322) to the right end face of the transverse portion of the three-stage T-shaped power splitting cavity (1231), the horizontal distance a30 between the right end of the rear end face of the three-stage trapezoidal body (1232) and the left end of the rear end face of the three-stage trapezoidal body (1232) adjacent to the right, the width a31 of the transverse portion of the four-stage T-shaped power splitting cavity (1241), the length b10, the length b11 of the longitudinal portion of the four-stage T-shaped power splitting cavity (1241), the distance a32 from the right end of the rear end face of the three-stage trapezoidal body (1232) to the right end face of the transverse portion of the three-stage T-shaped power splitting cavity (1231), the distance a33 from the right end of the rear end face of the three-stage trapezoidal body (1232) to the left end of the rear end face of the three-stage trapezoidal body (1232) adjacent to the right, the width a31 of the transverse portion of the four-stage T-shaped power splitting cavity (1241), the length b12 of the longitudinal portion of the four-stage T-shaped The horizontal distance c4 from the left end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) to the left end face of the transverse part of the four-stage T-shaped power splitting cavity (1241), the horizontal distance s4 from the left end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) closest to the left longitudinal middle plate (1324) to the right end face of the left longitudinal middle plate (1324), the distance a32 from the left end face of the four-stage capsule column (1242) to the left end face of the four-stage T-shaped power splitting cavity (1241), the width a33 of the four-stage capsule column (1242), the length b12, the distance b13 from the front top of the four-stage capsule column (1242) to the front end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241), and the horizontal distance a34 from the right end face of the four-stage capsule column (1242) to the left end face of the adjacent four-stage capsule column (1242 on the right. It is necessary to achieve one-to-two power distribution, and to ensure that the rectangular waveguide TE, 10 mode microwave transmission, and reduce the transmission of higher-order modes, when 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, and a1>a20>a11>a10>a9>a 15>a30>a21>a12>a31>a13>a19>a34>a18>a6>a7>a25>a16>a22>a26>a23>a29>a32>a28>d>a24>c4>a14>a33>a17>a27>a8>s4, b10>b13>b12>b11>b6>b7>b8>b5, under the condition of 0°<θ2<θ3<θ4<90°, the transmission efficiency of the distributor / combiner is set to be greater than 99%, using the electromagnetic simulation software CST Studio Suit optimizes and obtains accurate values ​​for 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.

7. The high power microwave vacuum window sealed power divider according to claim 1, characterized in that The chamfer angles of the left and right ends of the transverse parts of the power division channels of each level are equal to θ1, the chamfer dimensions of the first-level T-shaped power division cavity (1211) and the second-level T-shaped power division cavity (1221) are chamfered c2, the chamfer dimensions of the third-level T-shaped power division cavity (1231) are chamfered c3, the chamfer dimensions of the fourth-level T-shaped power division cavity (1241) are chamfered c4, the chamfer radius r1 of the connection between the right end face of the transverse middle plate (1321) and the left end face of the right inclined middle plate (1323), and the chamfer radius r2 of the connection between the rear end face of the waveguide port (134) and the transverse middle plate (1321) , the chamfer radius r3 of the connection between the front end face of the horizontal part of the first-stage T-shaped power splitting cavity (1211) and the rear end face of the longitudinal part of the first-stage T-shaped power splitting cavity (1211), the chamfer radius r4 of the connection between the chamfered rear surface of the first-stage T-shaped power splitting cavity (1211) and the left end face of the horizontal part of the first-stage T-shaped power splitting cavity (1211), the chamfer radius r5 of the connection between the inclined surface of the first-stage trapezoidal body (1212) and the front end face, the chamfer radius r6 of the connection between the left inclined surface of the second-stage trapezoidal body (1222) and the front end face, the chamfer radius r7 of the connection between the third-stage T-shaped power splitting cavity (1231) and the left inclined surface of the first-stage trapezoidal body (1232) and the front end face, ) The chamfer radius r7 at the connection between the front end face of the transverse part of the three-stage T-shaped power splitting cavity (1231) and the rear end face of the longitudinal part of the three-stage T-shaped power splitting cavity (1231); the chamfer radius r8 at the connection between the front end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) and the rear end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241); a plane parallel to the left end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) and having a distance r9 from the left end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) is chamfered at the intersection with the left end face of the four-stage T-shaped power splitting cavity (1241) The radius r9, the chamfer radius r10 of the right end of the front end surface of the longitudinal part of the fourth-stage T-shaped power splitting cavity (1241) closest to the left longitudinal middle plate (1324), the chamfer radii of the left and right ends of the lower surface of the first groove (1311) are equal to r11, and the chamfer radii r12 of the upper and lower ends of the rectangular through groove are required to meet the microwave lossless transmission conditions, that is, satisfy r6>r3>r11>r1>r9>r2>r10>r5>r7>r4>r8>r12, c1>c2>c4>c3, θ1=45°;The chamfer radius at the connection between the right end face of the transverse middle plate (1321) and the left end face of the right inclined middle plate (1323), the chamfer radius at the connection between the left end face of the transverse middle plate (1321) and the right end face of the left inclined middle plate (1322), the chamfer radius at the connection between the left end face of the left inclined middle plate (1322) and the front end face of the left longitudinal middle plate (1324), the chamfer radius at the connection between the right end face of the right inclined middle plate (1323) and the front end face of the right longitudinal middle plate (1325), the chamfer radius at the connection between the left end face of the housing upper plate (133) and the right end face of the left longitudinal middle plate (1324) away from O', the secondary T-shaped power splitter cavity (1221 ) the chamfer radius of the connection between the front end face of the transverse portion and the rear end face of the longitudinal portion of the secondary T-shaped power splitting chamber (1221), the chamfer radius of the left and right ends of the rear surface of the sealing plate (3), the chamfer radius of the connection between the front end face of the chamfered angle of the sealing plate (3) and the left and right ends of the front surface of the sealing plate (3), the chamfer radius of the connection between the right chamfered angle rear end face of the sealing plate (3) and the left end face of the sealing plate (3), the chamfer radius of the connection between the right chamfered angle rear end face of the sealing plate (3) and the right end face of the sealing plate (3), the chamfer radius of the connection between the left end face of the transverse middle plate (1321) and the right end face of the left inclined middle plate (1322), the chamfer radius of the inner surface of the connection between the left end face of the transverse middle plate (1321) and the right end face of the left inclined middle plate (1322), the chamfer radius of the transverse middle plate (1321) ) The inner surface chamfer radius of the connection between the right end face of the right inclined middle plate (1323) and the left end face, the inner surface chamfer radius of the connection between the left end face of the left inclined middle plate (1322) and the front end face of the left longitudinal middle plate (1324), and the inner surface chamfer radius of the connection between the right end face of the right inclined middle plate (1323) and the front end face of the right longitudinal middle plate (1325) are the same, and are all equal to r1; the outer surface chamfer radius of the connection between the rear end face of the waveguide port (134) and the front end face of the transverse middle plate (1321) and the chamfer radius of both ends of the upper surface of the second groove (1331) are the same, and are all equal to r2; the front end of the transverse part of the first-stage T-shaped power splitter cavity (1211) The chamfer radius at both ends of the connection between the end face and the rear end face of the longitudinal part of the first-stage T-shaped power splitting cavity (1211), the chamfer radius at one end of the front end face of the longitudinal part of the second-stage T-shaped power splitting cavity (1221) closer to the left and right end faces of the transverse part of the second-stage T-shaped power splitting cavity (1221), the chamfer radius at one end of the front end face of the longitudinal part of the third-stage T-shaped power splitting cavity (1231) closer to the left and right end faces of the transverse part of the third-stage T-shaped power splitting cavity (1231), the chamfer radius at the connection between the left inclined surface of the third-stage trapezoidal body (1232) and the front end face, and the chamfer radius at the connection between the right inclined surface of the third-stage trapezoidal body (1232) and the front end face are the same and are all equal to r3;The chamfer radius of the connection between the chamfered rear surface of the primary T-shaped power splitting cavity (1211) and the left end surface of the transverse part of the primary T-shaped power splitting cavity (1211), the chamfer radius of the connection between the chamfered rear surface of the primary T-shaped power splitting cavity (1211) and the right end surface of the transverse part of the primary T-shaped power splitting cavity (1211), the chamfer radius of the connection between the chamfered front surface of the primary T-shaped power splitting cavity (1211) and the two ends of the front surface of the transverse part of the primary T-shaped power splitting cavity (1211), the chamfer radius of the connection between the rear end surface of the primary trapezoidal body (1212) and the rear end surface of the transverse part of the primary T-shaped power splitting cavity (1211), and the chamfer radius of the connection between the secondary T-shaped power splitting cavity (1211). 21) the chamfer radius of the connection between the chamfered rear surface and the left end surface of the horizontal part of the secondary T-shaped power splitting cavity (1221), the chamfer radius of the connection between the chamfered rear surface of the secondary T-shaped power splitting cavity (1221) and the right end surface of the horizontal part of the secondary T-shaped power splitting cavity (1221), the chamfer radius of the connection between the chamfered front surface of the secondary T-shaped power splitting cavity (1221) and the two ends of the front surface of the horizontal part of the secondary T-shaped power splitting cavity (1221), the chamfer radius of the connection between the rear end surface of the secondary trapezoidal body (1222) and the rear end surface of the horizontal part of the secondary T-shaped power splitting cavity (1221), the chamfer radius of the connection between the chamfered rear surface of the tertiary T-shaped power splitting cavity (1231) and The chamfer radius of the left end surface of the three-stage T-shaped power splitting cavity (1231) transverse part is connected, the chamfer radius of the three-stage T-shaped power splitting cavity (1231) chamfered rear surface is connected with the right end surface of the three-stage T-shaped power splitting cavity (1231) transverse part, the chamfer radius of the three-stage T-shaped power splitting cavity (1231) chamfered front surface is connected with the two ends of the front surface of the three-stage T-shaped power splitting cavity (1231) transverse part, the chamfer radius of the two ends of the three-stage trapezoidal body (1232) is connected with the rear end surface of the three-stage T-shaped power splitting cavity (1231) transverse part, the chamfer radius of the four-stage T-shaped power splitting cavity (1241) closest to the left longitudinal middle plate (1324) is connected. The chamfer radius at the intersection of the rounded corner and the left longitudinal middle plate (1324) and the chamfer radius at the intersection of the rounded corner of the fourth-stage T-shaped power splitter (1241) closest to the right longitudinal middle plate (1325) and the right longitudinal middle plate (1325) are the same, both equal to r4; the chamfer radius at the connection between the left inclined surface of the first-stage trapezoidal body (1212) and the front end surface and the chamfer radius at the connection between the right inclined surface of the first-stage trapezoidal body (1212) and the front end surface are the same, both equal to r5; the chamfer radius at the connection between the left inclined surface of the second-stage trapezoidal body (1222) and the front end surface and the chamfer radius at the connection between the right inclined surface of the second-stage trapezoidal body (1222) and the front end surface are the same, both equal to r6; The front end face of the lateral part of the three-stage T-shaped power splitting cavity (1231) and the rear end face of the longitudinal part of the three-stage T-shaped power splitting cavity (1231) are chamfered at both ends of the connection, and the plane parallel to the left end face of the lateral part of the four-stage T-shaped power splitting cavity (1241) and the distance to the left end face of the lateral part of the four-stage T-shaped power splitting cavity (1241) is equal to r9. The chamfer radius at the intersection of the left chamfered rear surface of the four-stage T-shaped power splitting cavity (1241), parallel to the right end face of the lateral part of the four-stage T-shaped power splitting cavity (1241) and the right end face of the lateral part of the four-stage T-shaped power splitting cavity (1241) The plane with a distance equal to r9 and the right chamfered rear surface of the four-stage T-shaped power splitting cavity (1241) have the same chamfer radius at the intersection, both of which are equal to r7; the plane parallel to the left end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) and the distance to the left end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) is equal to r9, and the plane parallel to the right end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) and the distance to the right end face of the transverse part of the four-stage T-shaped power splitting cavity (1241) is equal to r9. The chamfer radius of the right end face of the four-stage T-shaped power splitting cavity (1241) at the intersection and the chamfer radius of both ends of the four-stage capsule column (1242) are the same, all equal to r9; the chamfer radius of the right end of the front end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) closest to the left longitudinal middle plate (1324), the chamfer radius of the left end of the front end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) closest to the right longitudinal middle plate (1325), the chamfer radius of the left end of the front end face of the longitudinal part of the four-stage T-shaped power splitting cavity (1241) second closest to the left longitudinal middle plate (1324), The chamfer radius of the right end of the front end surface of the longitudinal part of the fourth-stage T-shaped power splitting cavity (1241) which is the second closest to the right longitudinal middle plate (1325) is the same, which is equal to r10; the chamfer radius of the upper and lower ends of the left rectangular through groove (431), the chamfer radius of the upper and lower ends of the fifth rectangular plate (425), the chamfer radius of the upper and lower ends of the sixth rectangular plate (426), the chamfer radius of the upper and lower ends of the right rectangular through groove (432), the chamfer radius of the upper and lower ends of the seventh rectangular plate (427), and the chamfer radius of the upper and lower ends of the eighth rectangular plate (428) are the same, which is equal to r12.

8. The high power microwave vacuum window sealed power divider according to claim 1, characterized in that Said N=N4*2; N4=N3*2; N3=N2*2; N2=N1*2.

9. The high power microwave vacuum window sealed power divider as claimed in claim 1 or 4 or 5 or 7 or 8, characterized in that Through the electromagnetic simulation software CST Studio Suit, when satisfying 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,Under the conditions of r6>r3>r11>r1>r9>r2>r10>r5>r7>r4>r8>r12, L1 = c1*sinθ1, θ1 = 45°, 0°<θ2<θ3<θ4<90°, set the transmission efficiency of the distributor / combiner to be greater than 99%, and obtain 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.,

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