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Easily-processed high-isolation terahertz orthogonal mode isolation duplexer

A high isolation, orthogonal mode technology, applied in the field of high isolation terahertz quadrature mode isolation duplexers, can solve the problems of increasing the difficulty of circuit cascading, difficult processing of duplexers, and inability to connect circuits, etc. The effect of easy large-scale application, high isolation, and easy preparation

Active Publication Date: 2022-03-01
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in the terahertz frequency band, the circuit size decreases sharply, which makes it difficult to process the duplexer
At the same time, the two output ports of the current quadrature-mode coupler in the terahertz frequency band are orthogonal, so that after the two signals are output, the connected circuit needs to be reversed by 90 degrees, which will greatly increase the cost of multi-circuit cascading. Difficulty, and even cause the circuit to fail to connect

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  • Easily-processed high-isolation terahertz orthogonal mode isolation duplexer
  • Easily-processed high-isolation terahertz orthogonal mode isolation duplexer

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[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the implementation methods and accompanying drawings.

[0025] An easy-to-process high-isolation terahertz mode isolation duplexer, its circuit structure is shown in figure 1 As shown, it includes an orthogonal mode coupler 1, an E-plane 90° twisted waveguide 4, a first cavity filter 5 and a second cavity filter 6; the orthogonal mode coupler 1 has two output ports, the first One output port is the vertical mode output port 2, the second output port is the horizontal mode output port 3, the horizontally polarized waveguide of the E plane 90° twisted waveguide 4 is connected to the horizontal mode output port 3 of the orthogonal mode coupler, and the first cavity The bulk filter 5 is connected to the vertical mode output port 2 of the orthogonal mode coupler, and the second cavity filter 6 is...

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Abstract

The invention provides a high-isolation terahertz orthogonal mode isolation duplexer easy to process, and belongs to the technical field of duplexer devices. According to the invention, an orthogonal mode coupler is innovatively introduced into the duplexer, so that the limitation that an existing frequency division duplexer must use signal resources of different frequency bands is solved, and the application scene of the duplexer is expanded; meanwhile, the E-plane 90-degree twisted waveguide is connected with one output port of the orthogonal mode coupler, so that the two output ports of the duplexer have the same mode, and the limitation that after the orthogonal mode coupler is directly introduced into the duplexer, a 90-degree reverse cascade circuit is needed when the output ports are not connected with the twisted waveguide is avoided; and meanwhile, the E-plane 90-degree twisted waveguide can be processed by utilizing a traditional E-plane subdivision structure, so that the twisted waveguide is convenient to prepare, and large-scale application of the duplexer is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of duplexer devices, and in particular relates to an easy-to-process high-isolation terahertz orthogonal mode isolation duplexer. Background technique [0002] At present, the common antenna for transmitting and receiving is basically used in the front-end link of the radio frequency transmission, and the use of duplexers is bound to be involved in this process. At present, duplexers are mainly divided into two types according to the type of work: 1) Time division duplexers, that is, the transmission and reception are separated in time and do not conflict with each other; but this type of duplexer has great limitations in the application of real life scenarios ; 2) Frequency division duplexer, mainly because the working frequency bands of the transceiver link are different, so that the transceiver can work at the same time, as long as different frequency bands are selected. However, with the saturation of c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/90H04B1/40
CPCH04B10/90H04B1/40
Inventor 张波牛中乾杨晓波樊勇管明胡怡张季聪杨晓帆刘轲陈智
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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