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A Broadband Orthogonal Mode Coupler

An orthogonal mode coupler and broadband technology, applied in the field of couplers, can solve problems such as the need for metal diaphragms, achieve the effects of reducing weight, reducing difficulty, and increasing reliability

Active Publication Date: 2018-04-17
SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a broadband orthogonal mode coupler to solve the problem that the existing orthogonal mode coupler needs a metal diaphragm

Method used

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  • A Broadband Orthogonal Mode Coupler
  • A Broadband Orthogonal Mode Coupler
  • A Broadband Orthogonal Mode Coupler

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Embodiment 1

[0039] see Figure 1 to Figure 2 , figure 1 The overall structure diagram of the broadband orthogonal mode coupler provided for the embodiment of the present invention, figure 2 for figure 1 Sectional view along the A-A direction; such as figure 1 and figure 2 As shown, the broadband orthogonal mode coupler provided by the present invention includes a metal shell 100, and a cavity is provided inside the metal shell 100, and the cavity runs through two opposite sides of the metal shell 100 and one side of the metal shell 100;

[0040] A square waveguide, a first standard waveguide, and a second standard waveguide are arranged at the side ends of the chamber respectively at both ends of the chamber; where the square waveguide serves as the common port 1 of the broadband orthogonal mode coupler , the first standard waveguide is used as the through port 9 of the broadband orthogonal mode coupler, and the second standard waveguide is used as the coupling port 10 of the broadb...

Embodiment 2

[0055] see Figure 1 to Figure 2 , for the convenience of description below, it is assumed that the electromagnetic wave propagation direction in the coupling port 10 is the positive direction of the X-axis, the propagation direction of the electromagnetic wave in the through-port 9 is the positive direction of the Y-axis, and the direction perpendicular to the plane where the X-axis direction and the Y-axis direction are located is The positive direction of the Z axis (specifically to figure 1 The popular explanation is as follows: the positive direction of the X-axis refers to the outward direction perpendicular to the paper surface, the positive direction of the Y-axis refers to the rightward direction along the paper surface, and the positive direction of the Z-axis refers to the upward direction along the paper surface).

[0056] like Figure 1 to Figure 2 As shown, the broadband orthogonal mode coupler provided by the present invention includes:

[0057] The metal shel...

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Abstract

The invention discloses a broadband orthogonal mode coupler, which comprises a metal shell. A cavity is arranged inside the metal shell. A square waveguide, a first standard waveguide, a second standard waveguide is arranged at the side end of the chamber; the square waveguide is used as the common port of the broadband orthogonal mode coupler, and the first standard waveguide is used as the through port of the broadband orthogonal mode coupler, The second standard waveguide is used as the coupling port of the broadband orthogonal mode coupler; between the common port and the through port, a waveguide device with a gradual change in size is arranged to replace the metal diaphragm, so that the vertically polarized electromagnetic wave and the horizontally polarized electromagnetic wave pass through the waveguide with a gradual change in size The devices are separated and output through the through port and the coupled port respectively. The broadband orthogonal mode coupler does not need to use a metal diaphragm, which reduces the difficulty of processing; and because there is no metal diaphragm, there is no risk of metal diaphragm rupture, which increases the reliability of the device.

Description

technical field [0001] The invention relates to the technical field of couplers, in particular to a broadband orthogonal mode coupler. Background technique [0002] Orthogonal mode coupler, as an important part of dual-polarization antenna feeder, has been widely used in satellite communication and military radar, and is a very common device. Existing orthogonal mode couplers usually include a metal diaphragm. The main function of the metal diaphragm is to separate vertically polarized electromagnetic waves and horizontally polarized electromagnetic waves. [0003] However, with the development of remote sensing technology, the working frequency of the radiometer has been continuously increased, and its frequency has entered the millimeter-wave band, and the size of the orthogonal mode coupler has reached the order of millimeters, and its processing accuracy requirements have even reached the order of a few meters. On the one hand, the metal diaphragm of the traditional or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/12
Inventor 杨健俞伟敏
Owner SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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