圆极化五边形微带天线阵的设计与仿真  

Design and simulation of circular polarization micro-strip antenna array

作　　者：韩庆文[1] 陈旭[2] 陶学敏[1] 

机构地区：[1]重庆大学通信工程学院,重庆400044 [2]重庆理工大学重庆汽车学院,重庆400050

出　　处：《四川大学学报（自然科学版）》2011年第6期1319-1323,共5页Journal of Sichuan University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(NSTC60872038);重庆市自然科学基金资助项目(CSTC2011BB2061);重庆大学运载器测控及遥感信息传输技术重点实验室访问学者基金

摘　　要：五边形贴片天线具有较好的宽带特性和圆极化特性,但是设计过程复杂,本文通过研究五边形贴片单元的设计入手,给出单端侧馈五边形贴片天线的设计方法,并给出了5.6 GHz的五边形圆极化微带天线的HFSS仿真结果.以之为天线单元,构成4元天线阵列,给出馈电网络设计的合理方法,采用HFSS软件进行优化设计,进行仿真,仿真结果证明,该阵列获得了4%的3 dB带宽,并获得12 dB的增益.Pentagon circular polarization micro-strip antenna is good in broadband and circular polarization characteristics but hard in design process. The design principle of the pentagon circular polarization micro-strip antenna is researched and single ended side feeding method is presented. The way to analyze polygon micro-strip antennal is given,which is named finite cell. By means of adjust the 5.6 GHz pentagon circular polarization micro-strip antenna, HFSS simulation results are shown. Based on the pentagon antenna unit be simulated, a four element antenna array is presented. Design method for feed net of the array is given. Design is optimized by HFSS software, and simulation results for the array are displayed. Simulation results show that the array obtain a 4- 3 dB bandwidth, and 12 dB gain.

关 键 词：微带天线 圆极化 轴比 五边形 方向图 电压驻波比 带宽 

分 类 号：TN820.11[电子电信—信息与通信工程]