一种双层EBG结构滤波器的粒子群优化设计  

Optimal design of filter with double-layer EBG structure based on improved particle swarm optimization

作　　者：孟非[1] 沙莎[1] 解志斌[1] 彭涛[1] 

机构地区：[1]江苏科技大学电子信息学院,江苏镇江212003

出　　处：《江苏科技大学学报（自然科学版）》2012年第5期500-504,共5页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：船舶工业国防科技预研基金资助项目(10J3.5.2);江苏省普通高校研究生科研创新计划(CX10S_007Z);江苏高校优势学科建设工程基金资助项目

摘　　要：研究了一种基于双层电磁带隙结构的滤波器,该滤波器的金属导带上刻蚀蝶形单元,接地板上刻蚀圆环孔.为使该滤波器的传输特性更好,运用了基于量子理论、微分进化算子、混沌扰动改进的粒子群优化算法,并结合电磁仿真软件HF-SS对接地板圆环孔的结构尺寸进行了自动优化设计,优化后-10 dB的相对带宽和阻带的衰减值分别增加了25.0%和15.4%,左右最大通带波纹分别减小了69.2%和79.8%,优化效果明显.A kind of new dual-plane electromagnetic band gap （EBG） structure is studied in this paper. The fil- ter has metal conductor line etched bow-tie cells and metal ground etched clrques. In order to improve the trans- mission performance of the filter, particle swarm optimization algorithm, which is improve based on quantum the- ory, differential evolution operator and chaos disturbance, and the HFSS software, which has great electromag- netic simulating function, are integrated to optimize the size of the cirques automatically. The simulation results show that the relative bandwidth at - 10dB and the attenuation of stopband are increased 25.0% and 15.4% re- spectively, and the maximum passband ripples on the left and right sides are reduced by 69.2% and 79.8%. The optimal result is excellent.

关 键 词：电磁带隙结构 滤波器 粒子群算法 HFSS 

分 类 号：TN820[电子电信—信息与通信工程]