摘要
在腔模理论基础上分析了单阵元圆极化微带贴片天线,研究了圆极化微带阵列天线的设计方法,采用相位旋转法设计了中心频率为35.75GHz的64元圆极化微带阵列天线与平面和差结构,使天线和和差馈电处于一个平面。利用Ansoft公司的HFSS软件进行了仿真优化。经过对天线实物的测试,此天线提供了21dB的增益,具有良好的轴比和驻波比,差波束零值深度大于20dB。
A single-element circularly polarized microstrip patch antenna was analyzed based on the cavity-mode theory.By studying the design method of the circular polarized microstrip array antenna,a 64 element circularly polarized microstrip array antenna with sum-difference network which worked at 35.75GHz was designed.It was simulated and optimized by the HFSS.Experiment result shows that the antenna provides the gain of 21dB and good axial ratio.The different beam has a zero depth better than 20dB.
出处
《微波学报》
CSCD
北大核心
2011年第6期73-76,共4页
Journal of Microwaves
关键词
圆极化
微带
阵列天线
circularly polarized,microstrip,array antenna