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Grid groove metamaterial waveguide slot antenna and design method therefor

A waveguide slot antenna and metamaterial technology, applied in the microwave field, can solve the problem of no integrated filter space, etc., and achieve the effects of reducing design difficulty, high antenna efficiency, and low loss

Active Publication Date: 2017-09-08
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of anti-interference is implemented on the broadband slot waveguide antenna with the straight waveguide section available with the waveguide power divider. For the single-layer waveguide slot antenna without the straight waveguide section of the waveguide power divider, there is no integrated filter space

Method used

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  • Grid groove metamaterial waveguide slot antenna and design method therefor
  • Grid groove metamaterial waveguide slot antenna and design method therefor
  • Grid groove metamaterial waveguide slot antenna and design method therefor

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Embodiment Construction

[0045] The invention provides a grid groove metamaterial waveguide slot antenna, the core idea of ​​which is that a plurality of metal columns are distributed on the inner bottom surface of the metal waveguide, and the upper end surfaces of each metal column form a discontinuous metal surface in the shape of a grid; through The design of the metal waveguide can realize the transmission of electromagnetic waves in the working frequency band and suppress the transmission of electromagnetic waves in the low frequency band in the antenna; the design of the discontinuous metal surface can prevent the transmission of electromagnetic waves in the high frequency band in the antenna. The discontinuous metal surface behaves as a nearly perfect electrical conductor in the antenna working frequency band and low-frequency suppression frequency band, so that the electromagnetic wave in the working frequency band can be transmitted in the waveguide cavity, and the low-frequency suppression fre...

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Abstract

The invention discloses a grid groove metamaterial waveguide slot antenna and a design method therefor. The waveguide slot antenna comprises a metal waveguide tube with radiation slots, wherein the metal waveguide tube is used for allowing electromagnetic wave at working frequency bands to transmit in the antenna, and suppressing transmission of stop-band electromagnetic wave at low frequency bands in the antenna; multiple metal columns are distributed on the internal bottom surface of the metal waveguide tube; and the upper end planes of respective metal columns form a discontinuous metal surface used for stopping transmission of stop-band electromagnetic wave at high frequency bands in the antenna. Through fused design, a filter and the antenna, which are originally two independent microwave parts, can be skillfully fused together, so that the antenna can perform radiation as normal in the working frequency bands, and also can realize the dual-frequency-band suppression capacity outside the working frequency bands; and in addition, by virtue of the fusing mode, the interference resistance design difficulty of the system is lowered, and equipment quantity is reduced.

Description

technical field [0001] The invention belongs to the field of microwave technology, and in particular relates to a grid groove metamaterial waveguide slot antenna and a design method thereof. Background technique [0002] With the rapid development of applications and requirements, the use of electromagnetic spectrum has been greatly expanded and fully applied, and it is becoming more and more crowded. On the one hand, there are more and more electronic devices working at various frequencies; on the other hand, some platforms such as ships, aircraft and satellites are limited in space. In the case of such a high-density spectrum, the electromagnetic environment of each electronic device is very harsh. Therefore, electromagnetic compatibility issues such as interference and anti-interference must be considered when designing each electronic system. [0003] To solve the problem of electromagnetic compatibility between electronic systems, the conventional method is to add an e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q13/20H01Q15/24
CPCH01Q1/36H01Q13/20H01Q15/24
Inventor 鲁加国汪伟郑治张洪涛金谋平
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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