Unlock instant, AI-driven research and patent intelligence for your innovation.

An easy-to-fabricate high-isolation terahertz quadrature-mode isolation duplexer

A high isolation, orthogonal mode technology, applied in transmission systems, non-optical transmission systems, electrical components, etc., can solve the problems of increasing the difficulty of circuit cascading, the difficulty of duplexer processing, and the reduction of circuit size. Ease of large-scale application, high isolation, and the effect of improving duplex performance

Active Publication Date: 2022-05-03
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An easy-to-fabricate high-isolation terahertz quadrature-mode isolation duplexer
  • An easy-to-fabricate high-isolation terahertz quadrature-mode isolation duplexer
  • An easy-to-fabricate high-isolation terahertz quadrature-mode isolation duplexer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an easy-to-process high-isolation terahertz orthogonal mode isolation duplexer, which belongs to the technical field of duplexer devices. The present invention innovatively proposes the introduction of an orthogonal mode coupler into the duplexer, which solves the limitation that the existing frequency division duplexer must use different frequency band signal resources, and expands the application scenarios of the duplexer; at the same time, it adopts the E-plane The 90° twisted waveguide is connected to one output port of the orthogonal mode coupler, so that the two output ports of the duplexer have the same mode, avoiding the direct introduction of the orthogonal mode coupler into the duplexer after the output port is not connected Twisted waveguides require a 90° inversion cascaded circuit limitation. At the same time, the E-plane 90° twisted waveguide can be processed using the traditional E-plane split structure, which facilitates the preparation of twisted waveguides and facilitates the large-scale application of duplexers.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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