一种基于FSR的法布里-珀罗谐振腔天线设计  

A Fabry-Perot Resonator Antenna Design Based on FSR

作　　者：李越 LI Yue(The 723 Institute of CSSC,Yangzhou 225101,China)

机构地区：[1]中国船舶集团有限公司第七二三研究所,江苏扬州225101

出　　处：《舰船电子对抗》2024年第1期95-100,共6页Shipboard Electronic Countermeasure

摘　　要：基于频率选择性吸波器(FSR)和法布里-珀罗(F-P)谐振腔的基本原理,提出了一种具有增益增强效果和低雷达散射截面(RCS)的天线。首先,通过2层介质谐振器的模式叠加,设计了一款宽带介质谐振天线(DRA)作为F-P谐振腔的馈源。然后基于等效电路模型(ECM)设计了一款X波段透波,S和Ku波段吸波的FSR作为F-P谐振腔的部分反射表面。最后利用FSR的反射特性,在其与DRA的地面之间形成一个准法布里-珀罗谐振腔。仿真和测量结果表明,天线具有带内的增益增强和带外的低RCS性能。Based on the basic principles of frequency-selective rasorber(FSR)and Fabry-Perot(F-P)resonator,this paper proposes an antenna with gain enhancement effect and low radar cross section(RCS).Firstly,a wideband dielectric resonant antenna(DRA)is designed as the feed source of the F-P resonator through the mode superposition of the two-layer dielectric resonator.Then,based on the equivalent circuit model(ECM),an X-band translucent is designed,the FSR of S-band and Ku-band absorbing is used as a partial reflective surface of the F-P resonator.Finally,the reflection characteristics of the FSR are used to form a quasi-Fabry-Perot resonator between the FSR and the ground of the DRA.The simulation and measurement results show that the antenna has the performance of in-band gain enhancement and out-of-band low RCS.

关 键 词：法布里-珀罗谐振天线 介质天线 频率选择性吸波器 高增益 低散射 

分 类 号：TN821[电子电信—信息与通信工程]