摘要
根据传输线理论,结合遗传算法的全局搜索优势,提出智能阻抗匹配的微带天线设计方法。可自动匹配微带/带状线、同轴、共面波导、共面/异面双线等传输线馈电的天线单元,可显著减少宽带天线单元设计中的全波仿真计算量。利用该方法设计了带宽37%,驻波比不高于1.5的微带振子天线,仿真表明优化得到的S参数曲线与HFSS仿真结果基本吻合。本方法还可优化多端口激励的天线单元及相控阵的宽带宽角阻抗匹配。
A microstrip antenna design method is proposed based on transmission lines theory and genetic algorithm with adaptive impedance matching. Adaptive matching algorithm of antenna impedance fed is obtained by transmission lines such asstrip / microstrip line,coaxial line,CPW,CPS,DSPSL. Caculation quantity of fullwave simulationis remarkably is decreased during broadband antennas designing. A microstrip antenna of 37% bandwidth and VSWR≤1.5 is designed to adopt the proposed method, the simulation indicates that optimized S parameter is accordant with HFSS simulation result. The proposed method is also available for antennas excited by multi- port and scanning impedance matching of phased array.
出处
《电子信息对抗技术》
2016年第3期68-71,共4页
Electronic Information Warfare Technology
关键词
微带天线
阻抗匹配
遗传算法
microstrip antenna
impedance matching
genetic algorithm
