电波科学学报2012，Vol.27Issue(6)：1219-1224,6.
超材料吸波体设计及其雷达散射截面分析
Design of metamaterial absorber and its characteristics of RCS
摘要
Abstract
A metamaterial absorber is designed, composed of two metallic layers separated by a lossy dielectric spacer. The top layer consists of etched oblique cross-gap patch set in periodic pattern, white the bottom one is solid metal. By fine adjusting geometry parameters of the structure, we can obtain a polarizationinsensitive, wideqncident-angle ultra thin absorber which absorption is 99.1% and thickness is only 0.01 λ. Through the radar eross seetion(RCS) analysis of the absorber, it demonstrates that the absorber owns the better characteristics of RCS reduction, and the most reduetion value is up to 20 dB at the boresight direction. The experiment results have a good agreement with the simulation results, which verifies that the absorber owns the potential application in the fields of electromagnetic stealth.关键词
吸波体/超材料/极化稳定/雷达散射截面Key words
absorber/metamaterial/polarization insensitive/RCS分类
信息技术与安全科学引用本文复制引用
刘涛,曹祥玉,高军,郑秋容,杨欢欢..超材料吸波体设计及其雷达散射截面分析[J].电波科学学报,2012,27(6):1219-1224,6.基金项目
基金项目：中国博士后科学基金 （）
陕西省自然科学基础研究重点项目 （）
陕西省自然科学基础研究项目 （）
陕西省电子信息系统综合实验室开放项目 （）
