CN111952706A - Compact waveguide hybrid synthesis network - Google Patents
Compact waveguide hybrid synthesis network Download PDFInfo
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- CN111952706A CN111952706A CN202010822925.XA CN202010822925A CN111952706A CN 111952706 A CN111952706 A CN 111952706A CN 202010822925 A CN202010822925 A CN 202010822925A CN 111952706 A CN111952706 A CN 111952706A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
- H01P5/20—Magic-T junctions
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Abstract
A compact waveguide hybrid synthesis network, comprising, integrated in one: a waveguide H-T junction; the pair of magic T is symmetrically connected with the branch input ends of the waveguide H-T junction; and two pairs of waveguide E-T junctions which are respectively and symmetrically connected with the branch input ends of the magic T. The method specifically comprises the following steps: the device comprises an H arm output waveguide, an H arm output gradual change waveguide, an H arm matching structure, an H arm branch gradual change waveguide, a T-shaped branch steering waveguide, a magic T branch gradual change waveguide, a magic T four-port matching structure, a magic T load port gradual change waveguide, a probe structure, a magic T branch steering waveguide, an E arm matching structure, an E arm input waveguide and an assembly cavity. The magic T is integrated between the waveguide H-T junction and the waveguide E-T junction, the waveguide H-T junction adopts a standard waveguide port, the waveguide E-T junction adopts a non-standard waveguide port, multi-path non-standard waveguide port input and standard waveguide port output are achieved, insertion loss is low, working bandwidth is wide, amplitude-phase balance degree is good, size is reduced, convenience in processing is achieved, and practicability is high.
Description
Technical Field
The invention belongs to the field of communication, relates to a waveguide synthesis/microwave power division technology, and particularly relates to a compact waveguide hybrid synthesis network.
Background
Waveguide synthesis is a power synthesis means widely applied in microwave systems, and has the function of performing power synthesis on multiple paths of power to obtain higher power. The performance of the synthetic network, such as insertion loss, isolation, phase balance, and amplitude balance, will have a large impact on the performance of the entire system.
The conventional T-shaped junction is a three-port network, and no interstage isolation exists, so that interstage influence is large when power synthesis is carried out; especially when the power synthesis of multi-path waveguide input is needed, the defects of large loss, non-ideal amplitude-phase balance degree and the like exist mostly; in addition, the existing mode needs to realize multi-channel input, the structure is complex, the size is large, the processing and the forming are not convenient, and the applicability is greatly reduced.
Disclosure of Invention
In order to solve the defects of the related prior art, the invention provides a compact waveguide hybrid synthesis network, which integrates a magic T between a waveguide H-T junction and a waveguide E-T junction, adopts a standard waveguide port for the waveguide H-T junction, adopts a non-standard waveguide port for the waveguide E-T junction, realizes multi-path non-standard waveguide port input and standard waveguide port output, and has the advantages of low insertion loss, wide working bandwidth, good amplitude-phase balance degree, small volume, convenient processing and strong practicability.
In order to realize the purpose of the invention, the following scheme is adopted:
a compact waveguide hybrid synthesis network, comprising, integrated in one:
a waveguide H-T junction;
the pair of magic T is symmetrically connected with the branch input ends of the waveguide H-T junction; and
two pairs of waveguide E-T junctions are respectively and symmetrically connected with the branch input ends of the magic T;
the input end of the waveguide E-T junction adopts a non-standard waveguide port, and the output end of the waveguide H-T junction adopts a standard waveguide port.
Further, a waveguide E-T junction comprising:
a pair of E-arm input waveguides are symmetrically arranged at intervals, and the E surfaces of the E-arm input waveguides adopt non-standard waveguide ports and are used as radio-frequency signal input ends; and
and the E-arm spacer structure is arranged between the pair of E-arm input waveguides and is used for performing first power synthesis on the radio-frequency signals input from the E-arm input waveguides.
Further, a magic T, comprising:
the pair of magic T branch steering waveguides are symmetrically arranged, one end of each magic T branch steering waveguide is connected with the E-arm spacer structure, and the magic T branch steering waveguides are used for steering the radio-frequency signals synthesized by the E-arm spacer structure by 90 degrees in a step transition mode and enabling the radio-frequency signals entering the magic T to branch in the same direction;
the pair of magic T branch gradual change waveguides are symmetrically arranged and are respectively connected with the other end of the corresponding magic T branch steering waveguide for increasing the working bandwidth; and
and the pair of magic T branch gradual change waveguides are symmetrically connected to two sides of the magic T four-port matching structure and are used for matching signal power distribution ratio and isolation in the T-shaped coupling cavity together with the magic T branch gradual change waveguides so as to carry out secondary power synthesis.
Furthermore, shadow parts in the magic T four-port matching structure chart adopt a stepped square column structure, the top surface faces to the direction of the port of the E surface, the bottom surface is located in the opposite direction of the port of the E surface, and the side length of the stepped square column is sequentially reduced from the bottom surface to the top surface.
Further, a load module is vertically and vertically arranged on the magic T four-port matching structure and used for absorbing multi-path unbalanced power; and a magic T load port gradual change waveguide is arranged on one surface of the load module facing to the direction of the port of the E surface and is used for matching the standing wave of the load port.
The one side of load module orientation another magic T is equipped with the probe structure, and the probe structure includes:
a probe substrate; and
and a load resistor sintered together with the probe substrate on one side of the load module.
Further, a waveguide H-T junction, comprising:
the T-shaped branch steering waveguides are provided with a pair of symmetrical steering waveguides, one end of each steering waveguide is connected with a magic T four-port matching structure corresponding to the magic T respectively and used for steering the radio-frequency signals synthesized by the magic T by 90 degrees, so that the radio-frequency signals entering the H-T junction of the waveguides are branched in the same direction;
the H-arm branch gradual change waveguides are symmetrically arranged and are respectively connected with the other ends of the corresponding T-shaped branch steering waveguides for increasing the working bandwidth;
the pair of H-arm branch gradual change waveguides are symmetrically connected to two sides of the H-arm spacer structure and used for carrying out third synthesis on radio-frequency signals transmitted by the magic Ts; and
and the H-arm output waveguide is vertically connected with the H-arm spacer structure through the H-arm output tapered waveguide and is used for outputting the third synthesized radio frequency signal, and the H surface of the H-arm output waveguide adopts a standard waveguide port.
Furthermore, the waveguide E-T junction is vertically arranged, the pair of E-arm input waveguides are vertically arranged at intervals in the vertical direction, the E-arm spacer structure is positioned between the E-arm input waveguides,
the magic T branch steering waveguide is horizontally and vertically connected with an E arm spacer structure, and the magic T branch steering waveguide is positioned in a direction opposite to the direction of an E surface port of the E arm input waveguide;
the H-arm output waveguide, the H-arm output gradient waveguide, the H-arm spacer structure, the H-arm branch gradient waveguide, the T-shaped branch steering waveguide, the magic T branch gradient waveguide and the magic T four-port matching structure are all positioned on the same horizontal plane with the magic T branch steering waveguide.
Further, still include:
the cavity is used for accommodating the integrated waveguide H-T junction, the pair of magic T junctions and the two pairs of waveguide E-T junctions, and the shape of the cavity is matched with the overall shape of the integrated waveguide H-T junction, the pair of magic T junctions and the two pairs of waveguide E-T junctions;
the cavity is provided with an output port vertically arranged on one side of the length direction of the cavity and 4 input ports which are arranged at a preset distance from the other side and run through the top surface and the bottom surface of the cavity; the output port is matched with the H-arm output waveguide, and the input port is used for enabling an E-arm input waveguide of the waveguide E-T junction to extend out of the top surface and the bottom surface of the cavity;
the top surface of the cavity body is provided with two load cavities for accommodating the load module and the probe structure.
The invention has the beneficial effects that:
1. the magic T is integrated between a waveguide H-T junction and a waveguide E-T junction, the waveguide H-T junction adopts a standard waveguide port, the waveguide E-T junction adopts a non-standard waveguide port, multi-path non-standard waveguide port input and standard waveguide port output are realized, and the power synthesis of the X-band 1.6GHz bandwidth can be realized; meanwhile, the input port is a non-international standard rectangular waveguide port, vertical signal feed-in of the input port is realized, the size of the input port is favorably reduced, the size of the integral synthetic network is favorably designed to be further miniaturized, and the size and the weight are reduced; the output port is an international standard waveguide port, and the conversion of a non-standard waveguide port into a standard waveguide port is not required to be designed again for transition;
2. the probe structure absorbs the load, the absorption load adopts a micro-strip probe mode to carry out power coupling and carries out power absorption through a 50 ohm resistor, the absorption load is used as a universal standard waveguide load for replacing a traditional waveguide load, and the probe structure has the characteristics of convenience in design, high universality and the like. The micro-strip probe can be replaced by a coaxial probe mode, the realization principle is the same, and the volume can be effectively reduced;
3. the isolation between the four branches after eight-path synthesis is ensured, and the advantages of low insertion loss, wide working bandwidth, good amplitude-phase balance and the like are realized; meanwhile, the processing is easy, the matching structure and the magic T can be processed by one-time milling, and the actual engineering requirements are met;
4. the split cavity design is adopted, the magic T matching structure is designed in the lower cavity, the gradual change structure is designed in the upper cavity, the load cavity is an independent structure, and a boss of 0.05mm is designed on the contact surface of the upper cavity and the lower cavity, so that the close combination of the upper cavity and the lower cavity is ensured; the hybrid synthetic network structure is suitable for mounting the upper layer structure and the lower layer structure of the miniaturized power amplifier module and can meet the heat dissipation modes of various forms;
5. the X-waveband waveguide hybrid synthesis network has a simple structure, each port has good impedance matching, the insertion loss of the eight branches is less than 0.3dB, the isolation between the four synthesized branches is greater than 17dB, and the X-waveband waveguide hybrid synthesis network has a wider working bandwidth.
Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
Fig. 1 shows a schematic diagram of a composite network structure according to an embodiment of the present application.
Fig. 2 shows a first chamber structure diagram according to an embodiment of the present application.
Fig. 3 shows a cavity structure diagram of the embodiment of the present application.
Fig. 4 shows an insertion loss characteristic curve and an output port return loss characteristic curve of the eight-way branch according to the embodiment of the present application.
Fig. 5 shows the E-T junction isolation and the post-synthesis four-way output port isolation curves of the embodiments of the present application.
Fig. 6 shows a return loss curve of a magic T isolation tip according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are a part of the embodiments of the present invention, not all of the embodiments of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
As shown in fig. 1, the present example provides a compact waveguide hybrid composite network, comprising integrated: waveguide H-T junction, magic T, waveguide E-T junction. The pair of magic T is symmetrically connected with the branch input ends of the waveguide H-T junction; two pairs of waveguide E-T junctions are respectively and symmetrically connected with the branch input ends of the magic T; the input end of the waveguide E-T junction adopts a non-standard waveguide port, and the output end of the waveguide H-T junction adopts a standard waveguide port.
The non-standard waveguide port structures have the same size and are opposite in position.
Specifically, the waveguide hybrid composite network of the present example includes:
the device comprises an H arm output waveguide 1, an H arm output gradient waveguide 2, an H arm matching structure 3, an H arm branch gradient waveguide 4 and a T-shaped branch steering waveguide 5;
the system comprises a magic T branch tapered waveguide 6, a magic T four-port matching structure 7, a magic T load port tapered waveguide 8, a probe structure 9 and a magic T branch steering waveguide 10;
an E-arm matching structure 11, an E-arm input waveguide 12.
As shown in fig. 1, the waveguide E-T junction includes: an E-arm spacer structure 11 and a pair of symmetrically spaced E-arm input waveguides 12. The surface E of the E-arm input waveguide 12 adopts a non-standard waveguide port and is used as a radio frequency signal input end; and an E-arm spacer structure 11 provided between the pair of E-arm input waveguides 12, for performing first power combining on the radio frequency signals input from the E-arm input waveguides 12.
As shown in fig. 1, the magic T includes: the device comprises a magic T branch tapered waveguide 6, a magic T four-port matching structure 7, a magic T load port tapered waveguide 8, a probe structure 9 and a magic T branch steering waveguide 10.
The magic T branch steering waveguides 10 are symmetrically arranged, one end of each magic T branch steering waveguide is connected with the E-arm spacer structure 11, and the magic T branch steering waveguides are used for steering the radio-frequency signals synthesized by the E-arm spacer structure 11 in a 90-degree mode in a step transition mode and enabling the radio-frequency signals entering the magic T to branch in the same direction. The magic T branch gradual change waveguide 6 is provided with a pair of symmetrical arrangement, and is respectively connected with the other end of the corresponding magic T branch turning waveguide 10 for increasing the working bandwidth. The pair of magic T branch tapered waveguides 6 are symmetrically connected to two sides of the magic T four-port matching structure 7 and used for matching signal power distribution ratio and isolation in the T-shaped coupling cavity together with the magic T branch tapered waveguides 6 to perform secondary power synthesis.
Specifically, the magic-T four-port matching structure 7 is located at the center of the four-port network in a stepped square column manner, the top surface of the stepped matching square column faces the direction of the E-face port, and the bottom surface of the stepped matching square column is located in the opposite direction of the E-face port. The step matching square column is arranged so as to facilitate the impedance matching of the signal power distribution ratio and the isolation degree in the T-shaped coupling cavity. Meanwhile, the port on the E surface absorbs unbalanced power in a mode of connecting a micro-strip probe structure with a 50-ohm resistor.
A load module is vertically and vertically arranged on the magic T four-port matching structure 7 and used for absorbing multi-path unbalanced power; and a magic T load port gradual change waveguide 8 is arranged on one surface of the load module facing to the direction of the port of the E surface and is used for matching the standing wave of the load port.
The one side of load module towards another magic T is equipped with probe structure 9, and probe structure 9 includes: a probe substrate; and a load resistor sintered on one side of the load module together with the probe substrate.
As shown in fig. 1, the waveguide H-T junction includes: the device comprises an H-arm output waveguide 1, an H-arm output tapered waveguide 2, an H-arm matching structure 3, an H-arm branch tapered waveguide 4 and a T-shaped branch steering waveguide 5.
The T-shaped branch steering waveguides 5 are provided with a pair of symmetrical arrangement, one end of each T-shaped branch steering waveguide is respectively connected with a magic T four-port matching structure 7 corresponding to the magic T, and the T-shaped branch steering waveguides are used for steering the radio-frequency signals synthesized by the magic T by 90 degrees so that the radio-frequency signals entering the H-T junction of the waveguides are branched in the same direction; a pair of H-arm branch gradual change waveguides 4 are symmetrically arranged and are respectively connected with the other ends of the corresponding T-shaped branch steering waveguides 5 for increasing the working bandwidth; the pair of H-arm branch gradual-change waveguides 4 are symmetrically connected to two sides of the H-arm spacer structure 3 and used for carrying out third synthesis on radio-frequency signals transmitted by the magic Ts; the H-arm output waveguide 1 is vertically connected with an H-arm spacer structure 3 through an H-arm output tapered waveguide 2 and used for outputting a third-time synthesized radio frequency signal, and a standard waveguide port is adopted in the H surface of the H-arm output waveguide 1.
Specifically, the magic T branch steering waveguide 10 and the magic T branch gradual change waveguide 6 adopt a step-shaped structure, and are in a step-down trend towards the magic T four-port matching structure 7.
Specifically, the T-shaped branch steering waveguide 5 and the H-arm branch gradual change waveguide 4 adopt a stepped structure, and are in a stepped rising trend toward the H-arm spacer structure 3.
Specifically, the H-arm output tapered waveguide 2 adopts a stepped structure, and is in a stepped rising trend from the H-arm spacer structure 3 to the H-arm output waveguide 1.
The specific space and structure layout design is as follows:
the waveguide E-T junction is vertically arranged, the pair of E-arm input waveguides 12 are vertically arranged at intervals in the vertical direction, the E-arm spacer structure 11 is positioned between the E-arm input waveguides 12, the magic T branch steering waveguide 10 is horizontally and vertically connected with the E-arm spacer structure 11, and the magic T branch steering waveguide 10 is positioned in the direction opposite to the direction of an E-surface port of the E-arm input waveguide 12; the H-arm output waveguide 1, the H-arm output tapered waveguide 2, the H-arm spacer structure 3, the H-arm branch tapered waveguide 4, the T-shaped branch steering waveguide 5, the magic T branch tapered waveguide 6 and the magic T four-port matching structure 7 are all located on the same horizontal plane with the magic T branch steering waveguide 10.
On this basis, a cavity 13 as shown in fig. 2-3 is used to accommodate the composite network described in this example. The chamber 13 comprises an upper chamber 15 and a lower chamber 16, the synthetic network being fitted between the upper chamber 15 and the lower chamber 16. Specifically, the contact surfaces of the upper cavity 15 and the lower cavity 16 are designed with bosses of 0.05mm, so that the upper cavity and the lower cavity are tightly combined during assembly.
The shape of the cavity 13 is matched with the integral shape of the integrated waveguide H-T junction, the pair of magic T junctions and the two pairs of waveguide E-T junctions; the cavity 13 is provided with an output port 14 vertically arranged on one side of the length direction of the cavity 13 and 4 input ports 18 which are arranged on the other side at a preset distance and penetrate through the top surface and the bottom surface of the cavity 13; the output port 14 is matched with the H-arm output waveguide 1, and the input ports 18 are used for the E-arm input waveguide 12 of the waveguide E-T junction to extend out of the top surface and the bottom surface of the cavity 13, that is, the E-arm input waveguide 12 extends out of the input ports 18 of the upper cavity 15 and the lower cavity 16 respectively. Two load cavities 17 are formed in the top surface of the cavity 13 for accommodating the load modules and the probe structure 9.
In this way, the assembly of the composite network is completed. The hybrid synthetic network structure is suitable for mounting the upper layer structure and the lower layer structure of the miniaturized power amplifier module and can meet various heat dissipation modes.
Description of the working mode:
in order to avoid the problem of 180-degree phase difference of an E-T junction, a symmetrical waveguide hybrid synthesis network is adopted, the phase difference can be mutually offset, signals can be fed in from an upper E-surface nonstandard waveguide port and a lower E-surface nonstandard waveguide port at the same time, then the first power synthesis is carried out through an E-arm spacer structure 11, and the spacer can play a role in effectively improving power distribution between two paths.
Furthermore, the signal after the first power synthesis is turned to the waveguide 10 through the magic T branch, and is processed into a 90-degree corner structure through a step transition mode, so that four branches of the magic T are in the same direction, the power amplifier module can be conveniently and compactly installed, and meanwhile, the corner transmission characteristic is in an optimal state through the step design.
Furthermore, after the signal turns 90 degrees through the H surface, the synthesized four paths of signals enter the magic T branch tapered waveguide 6 and the magic T four-port matching structure 7, the magic T branch tapered waveguide 6 can increase the working bandwidth, and the magic T branch tapered waveguide and the magic T four-port matching structure 7 are matched with the signal power distribution ratio and the isolation degree in the T-shaped coupling cavity. The magic T four-port matching structure 7 adopts a step square column with the top surface facing the direction of the E-face port, and the bottom surface of the step matching square column is positioned in the opposite direction of the E-face port. The magic T four-port matching structure 7 is a two-section structure, so that the processing is convenient, and the side length of the square column is reduced from the bottom surface to the top surface in sequence. The design of the stepped square column effectively increases the impedance matching bandwidth of the matching square column and improves the isolation degree and standing wave characteristic of the port. The E-surface port is also designed with a gradual change waveguide, so that the standing wave of the E-surface port can be further improved.
This E face port is the unbalanced power of effect absorption, and waveguide load is adopted to traditional absorbed power, and the volume is great, is unfavorable for miniaturized design, and this example probe structure 9 adopts probe coupling mode to insert 50 ohm resistance and carries out the power absorption, through sintering probe substrate and load resistance in the cavity wall, does benefit to the design that miniaturized integrated. The probe structure is an independent design structure, and the bearing power of the 50 ohm resistor can be adjusted according to the absorbed power of the port.
Furthermore, the signal after the second power synthesis is turned to the waveguide 5 through the T-shaped branch, and is processed into a 90-degree corner structure through a step transition mode again, the H-T power is divided into two branches in the same direction, so that eight power amplifier modules can be conveniently and compactly installed at equal intervals, and meanwhile, the step design enables the corner transmission characteristic to reach the optimal state.
Furthermore, after the signal turns 90 degrees through the H surface, the synthesized two paths of signals enter the H-arm branch gradual change waveguide 4, final power synthesis is carried out through the H-arm spacer structure 3, and finally the H-arm output gradual change waveguide 2 and the H-arm output waveguide 1 are used for outputting. The eight paths of synthesized power output with the bandwidth of 1.6GHz in the X wave band is realized, and the index performance is superior.
Fig. 4 shows an insertion loss characteristic curve and an output port return loss characteristic curve of the present example.
Fig. 5 is a graph showing the isolation between E-T junctions and the isolation between four output ports after synthesis according to the present example.
Fig. 6 is a return loss curve of the magic T isolation terminal of the present example.
The X-waveband waveguide hybrid synthesis network has the advantages of simple structure, good impedance matching of each port, insertion loss of eight branches smaller than 0.3dB, isolation between four synthesized branches larger than 17dB, and wide working bandwidth.
The hybrid synthetic network of the embodiment can be suitable for a multi-path waveguide power amplifier/combiner network, is simple in structural form, small in size and wide in coverage frequency band, a cavity-divided matching structure and a magic T can be processed by one-time milling, the assembly error in the assembly of matching results is reduced, and the structure of the synthetic network is more compact by adopting a step-type 90-degree corner mode, the phase and amplitude balance degree of an output port is good, and the isolation ports are well isolated.
The foregoing is only a preferred embodiment of the present invention and is not intended to be exhaustive or to limit the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention.
Claims (10)
1. A compact waveguide hybrid synthesis network, comprising, integrated in one:
a waveguide H-T junction;
the pair of magic T is symmetrically connected with the branch input ends of the waveguide H-T junction; and
and two pairs of waveguide E-T junctions are respectively and symmetrically connected with the branch input ends of the magic T.
2. The compact hybrid waveguide network as in claim 1, wherein the input end of the E-T junction is a non-standard waveguide port and the output end of the H-T junction is a standard waveguide port.
3. The compact waveguide hybrid network of claim 1, wherein the waveguide E-T junction comprises:
a pair of E-arm input waveguides (12) which are symmetrically arranged at intervals, wherein the E surface of each E-arm input waveguide adopts a non-standard waveguide port and is used as a radio-frequency signal input end; and
and an E-arm spacer structure (11) which is provided between the pair of E-arm input waveguides (12) and is used for performing first power synthesis on the radio-frequency signals input from the E-arm input waveguides (12).
4. The compact waveguide hybrid combining network of claim 3, wherein magic T comprises:
the pair of magic T branch steering waveguides (10) are symmetrically arranged, one end of each magic T branch steering waveguide is connected with the E-arm spacer structure (11) and used for steering the radio-frequency signals synthesized by the E-arm spacer structure (11) in a 90-degree manner in a step transition manner and enabling the radio-frequency signals entering the magic T to branch in the same direction;
a pair of magic T branch gradual change waveguides (6) are symmetrically arranged and are respectively connected with the other ends of the corresponding magic T branch steering waveguides (10) for increasing the working bandwidth; and
and the pair of magic T branch gradual change waveguides (6) are symmetrically connected to two sides of the magic T four-port matching structure (7) and are used for matching signal power distribution ratio and isolation degree in the T-shaped coupling cavity together with the magic T branch gradual change waveguides (6) so as to carry out secondary power synthesis.
5. The compact waveguide hybrid network according to claim 4, wherein the shadow part in the diagram of the magic T four-port matching structure (7) adopts a stepped square column structure, the top surface faces the direction of the port of the E surface, the bottom surface is opposite to the port of the E surface, and the side length of the stepped square column is gradually reduced from the bottom surface to the top surface.
6. The compact waveguide hybrid network according to claim 4, wherein the magic T four-port matching structure (7) is vertically provided with a load module for absorbing multi-path unbalanced power; and one surface of the load module, facing to the direction of the port of the E surface, is provided with a magic T load port gradual change waveguide (8) for matching the standing wave of the load port.
7. The compact hybrid waveguide network according to claim 6, wherein the load module is provided with a probe structure (9) on its side facing the other magic T, the probe structure (9) comprising:
a probe substrate; and a load resistor sintered on one side of the load module together with the probe substrate.
8. The compact waveguide hybrid network of claim 4, wherein: a waveguide H-T junction, comprising:
the T-shaped branch steering waveguides (5) are provided with a pair of symmetrical waveguides, one end of each pair of symmetrical waveguides is connected with a magic T four-port matching structure (7) corresponding to the magic T respectively and used for steering the radio-frequency signals synthesized by the magic T by 90 degrees so that the radio-frequency signals entering the H-T junction of the waveguides are branched in the same direction;
a pair of H-arm branch gradual change waveguides (4) are symmetrically arranged and are respectively connected with the other ends of the corresponding T-shaped branch steering waveguides (5) for increasing the working bandwidth;
the pair of H-arm branch gradual change waveguides (4) are symmetrically connected to two sides of the H-arm spacer structure (3) and are used for carrying out third synthesis on radio-frequency signals transmitted by the magic Ts; and
the H-arm output waveguide (1) is vertically connected with the H-arm spacer structure (3) through the H-arm output tapered waveguide (2) and is used for outputting the third synthesized radio frequency signal, and a standard waveguide port is adopted by the H surface of the H-arm output waveguide (1).
9. The compact waveguide hybrid network of claim 8, wherein:
the waveguide E-T junction is vertically arranged, a pair of E-arm input waveguides (12) are vertically arranged at intervals in the vertical direction, an E-arm spacer structure (11) is positioned between the E-arm input waveguides (12),
the magic T branch steering waveguide (10) is horizontally and vertically connected with an E arm spacer structure (11), and the magic T branch steering waveguide (10) is positioned in the direction opposite to the direction of an E surface port of the E arm input waveguide (12);
the H-arm output waveguide (1), the H-arm output tapered waveguide (2), the H-arm spacer structure (3), the H-arm branch tapered waveguide (4), the T-shaped branch steering waveguide (5), the magic T branch tapered waveguide (6) and the magic T four-port matching structure (7) are all located on the same horizontal plane with the magic T branch steering waveguide (10).
10. The compact waveguide hybrid network of claim 9, wherein: further comprising:
the cavity (13) is used for accommodating the integrated waveguide H-T junction, the pair of magic T junctions and the two pairs of waveguide E-T junctions, and the shape of the cavity (13) is matched with the overall shape of the integrated waveguide H-T junction, the pair of magic T junctions and the two pairs of waveguide E-T junctions;
the cavity (13) is provided with an output port (14) vertically arranged on one side of the length direction of the cavity (13) and 4 input through ports (18) which are arranged on the other side of the cavity and penetrate through the top surface and the bottom surface of the cavity (13) at a preset distance; the output port (14) is matched with the H-arm output waveguide (1), and the input port (18) is used for enabling the E-arm input waveguide (12) of the waveguide E-T junction to extend out of the top surface and the bottom surface of the cavity (13);
two load cavities (17) are arranged on the top surface of the cavity (13) and used for accommodating the load module and the probe structure (9).
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| CN202010822925.XA CN111952706A (en) | 2020-08-17 | 2020-08-17 | Compact waveguide hybrid synthesis network |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216943A (en) * | 2020-12-01 | 2021-01-12 | 南京纳特通信电子有限公司 | Ku wave band power synthesizer and amplifier |
| FR3118537A1 (en) * | 2020-12-30 | 2022-07-01 | Thales | BROADBAND MAGIC TEE MICROWAVE JUNCTION |
| CN114944544A (en) * | 2022-05-25 | 2022-08-26 | 西安电子科技大学 | Compact one-to-four power divider based on waveguide magic T |
| CN115548619A (en) * | 2022-12-01 | 2022-12-30 | 四川太赫兹通信有限公司 | Terahertz four-way power divider and ultra-wideband radiation source |
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2020
- 2020-08-17 CN CN202010822925.XA patent/CN111952706A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216943A (en) * | 2020-12-01 | 2021-01-12 | 南京纳特通信电子有限公司 | Ku wave band power synthesizer and amplifier |
| CN112216943B (en) * | 2020-12-01 | 2021-03-26 | 南京纳特通信电子有限公司 | Ku wave band power synthesizer and amplifier |
| FR3118537A1 (en) * | 2020-12-30 | 2022-07-01 | Thales | BROADBAND MAGIC TEE MICROWAVE JUNCTION |
| EP4024604A1 (en) * | 2020-12-30 | 2022-07-06 | Thales | Hyperfrequency junction in broadband magic tee |
| CN114944544A (en) * | 2022-05-25 | 2022-08-26 | 西安电子科技大学 | Compact one-to-four power divider based on waveguide magic T |
| CN115548619A (en) * | 2022-12-01 | 2022-12-30 | 四川太赫兹通信有限公司 | Terahertz four-way power divider and ultra-wideband radiation source |
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