CN219915781U - High isolation polarization detector - Google Patents
High isolation polarization detector Download PDFInfo
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- CN219915781U CN219915781U CN202321604403.8U CN202321604403U CN219915781U CN 219915781 U CN219915781 U CN 219915781U CN 202321604403 U CN202321604403 U CN 202321604403U CN 219915781 U CN219915781 U CN 219915781U
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- 230000010287 polarization Effects 0.000 title claims abstract description 24
- 238000002955 isolation Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Abstract
The utility model relates to the technical field of microwave communication, in particular to a high-isolation polarization detector which comprises an orthogonal analog converter, a waveguide coaxial converter, a coaxial connector, a plug and a waveguide main body, wherein the waveguide coaxial converter is formed by installing and combining the waveguide main body, the plug and the coaxial connector from top to bottom, the waveguide coaxial converter is connected with a third-order step through the coaxial connector, the third-order step is connected with the orthogonal analog converter through a section of straight waveguide, and the third-order step is distributed at 90 degrees on the orthogonal analog converter.
Description
Technical Field
The utility model relates to the technical field of microwave communication, in particular to a high-isolation polarization detector.
Background
Polarization detectors are key components for synthesizing, separating and detecting frequency signals in microwave systems, and are used in a large number in various communication, radar, electronic countermeasure systems, and the like. In order to satisfy the dual-channel receiving system, to separate the linearly polarized or circularly polarized electromagnetic waves received by the antenna into orthogonal vertically polarized and horizontally polarized electromagnetic waves, a polarization detector suitable for mass production is required.
In recent years, the requirements of microwave passive devices on bandwidth are continuously increased, and meanwhile, higher requirements are also put on voltage standing wave ratio, loss and port isolation, so that more and more novel polarization detectors are developed to meet the requirements of modern antenna equipment. Therefore, along with the continuous improvement of the working frequency of the polarization detector, the processing precision requirement of the polarization detector is higher and higher, so that the mechanical processing requirement and the cost are greatly improved, and the productivity is influenced and restricted. The traditional polarization detector adopts an integrated structure, so that the difficulty is high in the debugging production process, and the production cost is high.
Based on the reasons, the utility model designs the high-isolation polarization detector, which adopts the combination of the orthogonal analog converter and the waveguide coaxial converter, has small debugging difficulty and low production cost, and can realize mass production.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a high-isolation polarization detector which adopts a combination of an orthogonal analog converter and a waveguide coaxial converter, has small debugging difficulty and low production cost and can realize mass production.
In order to achieve the above purpose, the utility model provides a high isolation polarization detector, which comprises an orthogonal converter, a waveguide coaxial converter, a coaxial connector, a plug and a waveguide main body, wherein the waveguide coaxial converter is formed by installing and combining the waveguide main body, the plug and the coaxial connector from top to bottom, the waveguide coaxial converter is connected with a third-order step through the coaxial connector, and the third-order step is connected with the orthogonal converter through a section of straight waveguide and distributed on the orthogonal converter at 90 degrees.
Compared with the prior art, the utility model has the following advantages:
from the aspect of engineering construction, the high-isolation polarization detector adopts a split structure of the orthogonal analog converter and the wave-to-common converter, which is beneficial to mass production and cost reduction.
From the aspect of product design, the high-isolation polarization detector adopts a split structure of the orthogonal analog converter and the wave-to-analog converter, so that the debugging difficulty is greatly reduced, the operation is convenient, and the assembly and debugging efficiency is improved.
From the aspect of electrical performance, the high-isolation polarization detector can realize lower return loss characteristic and high isolation characteristic, so that electromagnetic wave signals are better separated and synthesized, and high isolation is realized.
Drawings
FIG. 1 is a schematic diagram of the components of the present utility model.
Fig. 2 is a schematic diagram of the internal structure of the present utility model.
FIG. 3 is a schematic diagram of simulation results of the electrical performance index of the present utility model.
101 is a quadrature mode converter, 102 is a waveguide coaxial converter, 103 is a coaxial connector, 104 is a bulkhead, and 105 is a waveguide body.
Description of the embodiments
The utility model will now be further described with reference to the accompanying drawings.
Referring to fig. 1-3, the utility model provides a high isolation polarization detector, which comprises an orthogonal analog converter 101, a waveguide coaxial converter 102, a coaxial connector 103, a plug 104 and a waveguide main body 105, wherein the waveguide coaxial converter 102 is formed by installing and combining the waveguide main body 105, the plug 104 and the coaxial connector 103 from top to bottom, the waveguide coaxial converter 102 is connected with a third-order step through the coaxial connector 103, and the third-order step is connected with the orthogonal analog converter 101 through a section of straight waveguide and is distributed on the orthogonal analog converter 101 at 90 degrees.
Working principle:
referring to fig. 1-2, the present utility model provides a high isolation polarization detector, such as a BJ320 (WR 28) high isolation polarization detector.
The polarization detector mainly comprises a quadrature analog converter 101, and two waveguide coaxial converters 102, namely a first waveguide coaxial converter 102 and a second waveguide coaxial converter 102, which are identical in structure, (here collectively defined as 102 for convenience of description).
The waveguide coaxial converter 102 includes a waveguide body 105, a bulkhead 104, and a coaxial connector 103, and the quadrature analog converter 101 is configured to separate two orthogonal linearly polarized waves transmitted through the same waveguide in respective directions, and the separated polarized waves are transmitted through the respective coaxial converters 103.
The waveguide coaxial converter 102 is connected with a third-order step through a coaxial connector 103, and then is connected with the quadrature converter 101 through a section of straight waveguide through the third-order step to realize conversion. The quadrature mode converter 101 mainly separates two orthogonal linear polarized waves transmitted in a circular waveguide by steps of 90 ° at both ends.
Referring to fig. 3, the national standard specified frequency range of the rectangular waveguide BJ320 is 26.4-40.0 GHz, and the operating frequency of the polarization detector with the rectangular waveguide BJ320 is 27.5-31.3 GHz. The port echoes are all less than-20 dB. The isolation S (3, 1) between port 2 and port 3 is greater than 45dB.
Furthermore, the conversion structure of the utility model is treated by a metal plating layer, and has strong oxidation resistance.
The above is only a preferred embodiment of the present utility model, only for helping to understand the method and the core idea of the present utility model, and the scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
The utility model solves the problems that the polarization detector in the prior art adopts an integrated structure, and the processing requirement and the cost are greatly improved, and the productivity is influenced and restricted under the condition that the processing precision requirement of the polarization detector is higher and higher.
Claims (1)
1. The utility model provides a high isolation polarization detector, its characterized in that includes quadrature analog converter (101), waveguide coaxial converter (102), coaxial connector (103), end cap (104) and waveguide main part (105), waveguide coaxial converter (102) by waveguide main part (105) end cap (104) and coaxial connector (103) top-down installation combination form, waveguide coaxial converter (102) are connected with third-order step through coaxial connector (103), the third-order step through one section straight waveguide with quadrature analog converter (101) are connected, the third-order step is 90 ° distribution on quadrature analog converter (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321604403.8U CN219915781U (en) | 2023-06-25 | 2023-06-25 | High isolation polarization detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321604403.8U CN219915781U (en) | 2023-06-25 | 2023-06-25 | High isolation polarization detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219915781U true CN219915781U (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321604403.8U Active CN219915781U (en) | 2023-06-25 | 2023-06-25 | High isolation polarization detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219915781U (en) |
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2023
- 2023-06-25 CN CN202321604403.8U patent/CN219915781U/en active Active
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