摘要
提出以双六边形环为单元结构的电路模拟吸波材料。根据单元的双频特性建立等效电路模型,根据六边形环周期分布规律提出等效周期概念,给出等效分布电参数的计算方法。利用该模型对双六边形环电路模拟吸波材料的结构进行参数分析,并与HFSS全波分析结果进行对比,验证该方法的准确性。加工样品和实测,结果发现所设计吸波材料在1.9~8.9 GHz频段内对正入射波具有良好的吸波特性,实测结果与等效电路模型仿真结果吻合较好,进一步验证了该方法的有效性。
A circuit analog absorber with double hexagonal loops units was proposed. An equivalent circuit model was established according to the dual-frequency characteristics of the units. The equivalent period concept was proposed by analyzing the periodic distribution of the units,and the extraction of distribution electrical parameters was given. The structural parameters were simulated and analyzed with the proposed method,the simulated results were in agreement with the results given by HFSS software,and the accuracy was verified. Finally,a sample was fabricated and measured. The measured results show good broadband absorption in 1.9~8.9 GHz for normal incidence,and the accuracy of the proposed method is verified further.
作者
于家傲
彭世蕤
刘立国
李有权
YU Jiaao;PENG Shirui;LIU Liguo;LI Youquan(Department of Information Warfare,Air Force Early Warning Academy,Wuhan 430019,China;College of Electronic Engineering,Naval University of Engineering,Wuhan 430019,China)
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2019年第3期153-158,共6页
Journal of National University of Defense Technology
基金
国家自然科学基金资助项目(61601492)
关键词
电路模拟吸波材料
双六边形环
等效电路模型
circuit analog absorber
double hexagonal loops
equivalent circuit model
