摘要
采用多模网络与严格的模匹配相结合的方法研究了介质损耗对左手媒质构成的周期结构频率选择特性的影响;并对其中的新现象给予了解释.讨论了损耗对左手和右手周期结构的频率选择特性影响的差异.本文得到的结果对于精确设计新的毫米波频率选择表面有一定的指导意义.
The frequency selective characteristics of lossy dielectric periodic structure composed of left-handed materials are carefully studied by a method which combines the multimode network theory with the rigorous mode matching method; and some explanations for the new phenomena are made. Comparisons between left-handed and right-handed gratings for the effects of dielectric loss on frequency selective characteristics are given. Guidelines for accurate design of the new millimeter wave frequency selective surface are presented.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2007年第12期2399-2402,共4页
Acta Electronica Sinica
基金
国家自然科学基金(No.60471037
No.60531020)
关键词
左手媒质
介质周期结构
频率选择特性
多模网络
介质损耗
LHM（left-handed materials）
dielectric periodic structure
frequency selective characteristics
multimode network
dielectric loss
