摘要
利用等效电路法(ECM)及时域有限差分(FDTD)算法分析了频率选择表面(FSS)在2.0～18.0GHz的传输特性,并进行自由空间法测试;同时对含FSS复合吸波材料进行了仿真分析与弓形法反射率测试。结果表明,利用FSS谐振特性与吸波材料吸收特性相互作用,反射率小于–10.0dB的合格带宽可达到7.2GHz(5.0～12.2GHz),有效展宽了反射率曲线的合格带宽,实现了吸波材料吸收性能的宽频化设计。
The transmission properties of frequency selective surface (FSS) were simulated by using ECM and FDTD methods, and tested by free space method within 2.0～18.0 GHz. At the same time, the reflectivities of composite microwave absorbing materials (MAM) were studied, simulately and experimentally, with FSS embedded in the middle of the MAM structure. Results show that after introducing the FSS, the absorbing properties of MAM interacts with the resonant properties of FSS, which broadens the required bandwidth (...
出处
《电子元件与材料》
CAS
CSCD
北大核心
2010年第6期44-47,共4页
Electronic Components And Materials
关键词
频率选择表面
微波吸收材料
传输特性
frequency selective surface
microwave absorbing material
transmission property
