光子晶体在分布式干扰机系统中的应用  

Application of Photonic Crystal in Distributed Jammers System

作　　者：王超[1] 袁乃昌[1] 张国华[1] 闫敦豹[1] 

机构地区：[1]国防科学技术大学微波技术发展中心,长沙410073

出　　处：《现代雷达》2006年第8期83-85,90,共4页Modern Radar

基　　金：国家安全重大基础研究资助项目

摘　　要：光子晶体是一种具有具有频率禁带的新型周期结构,它独特的频率带隙特性使得光子晶体具有广泛的应用前景。介绍了光子晶体的基本概念,研究了高阻电磁表面的结构和电磁特性。对高阻电磁表面在分布式干扰机系统中的应用进行了研究,设计了一种用来改善干扰机系统中平面螺旋天线性能的高阻电磁表面结构,测量结果表明其对降低天线背瓣、增加天线增益以及减小收发天线耦合等方面有显著效果。Photonic crystal is a new type periodic structure with frequency bandgaps , their unique bandgap features bring about wide application prospect . The basical conception of photonic crystals is introduced , and the structure and electromagnetic model of high impedance surface （ HIS ） are discussed . The applications of HIS in distributed jamrhers system is studied . An structure of HIS was designed to improve the performance of Archimedean plannar spiral antenna in distributed jammers system . The experimental results show that the HIS can remarkably decrease the back lobe , increase the gain of main lobe and suppress the mutual coupling between receiving antenna and transmitting antenna.

关 键 词：光子晶体 分布式干扰机 高阻电磁表面 阿基米德平面螺旋天线 

分 类 号：TN972[电子电信—信号与信息处理]