Terahertz transmitting-receiving common dual-polarized quasi optical circulator

A dual-polarization technology with shared transceivers, applied in optics, instruments, optical components, etc., can solve problems such as quasi-optical technology that has not yet been seen, achieve good beam matching, and reduce the size of the structure

Active Publication Date: 2017-04-26
SHANGHAI RADIO EQUIP RES INST
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AI Technical Summary

Problems solved by technology

However, according to the public information obtained so far, there are no reports of quasi-optical technologies that can not only solve the sharing of transmitting and receiving channels but also realize the reception of dual-polarized information.

Method used

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  • Terahertz transmitting-receiving common dual-polarized quasi optical circulator

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Embodiment Construction

[0030] based on the following figure 1 Preferred embodiments of the present invention will be described in detail.

[0031] Such as figure 1 As shown, the present invention provides a dual-polarized quasi-optical circulator for terahertz transceivers, including:

[0032] The transmitting component is used for transmitting circularly polarized signals;

[0033] The first transmitting and receiving shared branch utilizes the polarization characteristics of electromagnetic waves to transmit vertically polarized signals and receive horizontally polarized signals;

[0034] The second sending and receiving shared branch uses the polarization characteristics of electromagnetic waves to transmit horizontally polarized signals and receive vertically polarized signals;

[0035] The transmitting and receiving component is used to combine the vertically polarized signal transmitted by the first transmitting and receiving shared branch and the horizontally polarized signal transmitted b...

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Abstract

A terahertz transmitting-receiving common dual-polarized quasi optical circulator comprising: a transmitting component for transmitting a circularly polarized signal; a first transmitting-receiving common branch for dividing the transmitted circularly polarized signal into a horizontal polarization signal and a vertical polarization signal, and transmitting the vertical polarization signal and receiving the horizontal polarization signal by using electromagnetic polarization characteristics; a second transmitting-receiving common branch for transmitting the horizontal polarization signal and receiving the vertical polarization signal by using the electromagnetic polarization characteristics; a transmitting-receiving component for combining the vertical polarization signal transmitted by the first transmitting-receiving common branch and the horizontal polarization signal transmitted by the second transmitting-receiving common branch into a circularly polarized signal to be transmitted as a radar signal, dividing a received radar echo circularly polarized signal into a horizontal polarization signal and a vertical polarization signal, enabling the horizontal polarization signal to enter the first transmitting-receiving common branch and the vertical polarization signal to enter the second transmitting-receiving common branch. The terahertz transmitting-receiving common dual-polarized quasi optical circulator has isolated transmitting and receiving channels and a function of receiving dual polarization information at the same time.

Description

technical field [0001] The invention relates to the technical field of terahertz active detection radar, in particular to a dual-polarization quasi-optical circulator shared by terahertz transceivers. Background technique [0002] In radar active detection applications, in order to obtain more information and obtain higher resolution, higher frequencies are required. As a result, millimeter-wave and submillimeter-wave technologies are developing rapidly, and there is an urgent need for related systems and devices. However, due to the limitation of domestic technical level, most of the researches are concentrated on the frequency band below 100GHz, and there are relatively few higher frequency systems and applications. With the rapid development of terahertz technology in recent years, the demand for circulators in terahertz active detection radars is becoming more and more obvious. However, it is very difficult to process the circulator made of ferrite in the traditional m...

Claims

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Application Information

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IPC IPC(8): G02B27/00
CPCG02B27/00
Inventor 王平魏维伟李银伟刘俊豪钟馥鸾
Owner SHANGHAI RADIO EQUIP RES INST
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