摘要: |
为了提高雷达天线的抗带外干扰能力,在传统耶路撒冷环孔的基础上,设计了一种
基于基片集成波导技术的新型带通频率选择表面(FSS)。仿真计算表明:将该新型FSS加载
到喇
叭天线上,不仅能够保证喇叭天线在通带内正常工作,而且可以有效抑制带外的一些干
扰信号,在6~10 GHz工作频带内的带外抑制度达到20 dB,具有良好的前门防护
效果。 |
关键词: 雷达天线 频率选择表面 前门防护 带外干扰 基片集成波导 传输系数 |
DOI: |
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基金项目: |
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Application of Frequency Selective Surface in Front door Protection |
ZHANG Hou,SHU Nan,LI Gui-yuan,YIN Xiong |
(The Missile Institute,Air Force Engineering University, Sanyuan 713800,China) |
Abstract: |
In order to improve the outband interference suppression performance of radar
antenna,on
the basis of the traditional Jerusalem loop aperture,a new bandpass frequency
selective surface(FSS) is designed based on substrate integrated waveguide(SI
W).The calculation results show that the horn antenna by covering the FSS at t
he aperture can not only work well at passband,but also suppress the interfer
ence signals at outband and the performance of antiinterference is improved
20 dB at 6~10 GHz,excellent front-door protection performance can be achiev
ed. |
Key words: radar antenna frequency selective surface(FSS) front door protection out-band interference su
bstrate integrated waveguide(SIW) transmission coefficient |