Design and Measurement of Microwave Absorbers Comprising Resistive Frequency Selective Surfaces

作     者：Meng Zhang Tian Jiang Yijun Feng 

作者机构：School of Electronic Science and Engineering Nanjing University Nanjing China 

出 版 物：《Journal of Electromagnetic Analysis and Applications》 (电磁分析与应用期刊（英文）)

年 卷 期：2014年第6卷第8期

页      码：203-208页

摘      要：Frequency selective surfaces (FSSs) have been successfully used in constructing microwave absorbers which demonstrate the ability of modifying and improving its absorbing performances. In this paper, microwave absorber based on ferromagnetic nano-films has been proposed and investigated with a structure similar to that of the Salisbury screen except that the resistive sheet is replaced by FSS of square patch array of the nano-film. We have explored the FSS absorber from three aspects: equivalent circuit model, electromagnetic full-wave simulation and the actual sample measurement. By carefully tuning the patch size, the thickness of the dielectric spacer and the specification of the ferromagnetic nano-film, we obtain the optimized performance of broadband microwave absorbing. Due to the light weight of the nano-films, the proposed absorbers can achieve an ultra-low surface density less than 0.25 kg/m2.

主 题 词：Salisbury Screen Frequency Selective Surface Equivalent Circuit Model Electron Beam Evaporation 

学科分类：1002[医学-临床医学类] 100214[100214] 10[医学] 

D　O　I：10.4236/jemaa.2014.68020

馆 藏 号：203786643...