一种基于CSRR结构的全向微带缝隙阵列天线设计  

Design of Omnidirectional Microstrip Slot Array Antenna Based on CSRR Structure

作　　者：曹源 刘宇峰 张骄 张文梅[1] CAO Yuan;LIU Yufeng;ZHANG Jiao;ZHANG Wenmei(School of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China)

机构地区：[1]山西大学物理电子工程学院,山西太原030006

出　　处：《测试技术学报》2021年第5期456-460,共5页Journal of Test and Measurement Technology

摘　　要：提出了一种新型的全向微带缝隙阵列天线,缝隙单元基于圆形互补开口谐振环(CSRR)结构.天线共有8个背靠背CSRR缝隙单元,分别蚀刻在带状线两侧接地板上,通过中心导带串行馈电.为了获得良好的全向性能,相邻CSRR缝隙单元开口朝向相反,并对天线结构进行扫参分析.设计了一款工作在5.8 GHz的水平全向缝隙阵列天线,仿真结果表明,天线的阻抗带宽(|S11|<-10 dB)为4.8%(5.69 GHz~5.97 GHz),最大增益为9.63 dBi,水平方向最大增益变化小于0.5 dB.This paper presents a novel type of omnidirectional microstrip slot array antenna.The slot is based on a circular complementary split resonant ring(CSRR)structure.There are totally 8 back-to-back CSRR slots etched on both parallel ground plates of the strip line,which are fed serially through the central conductor.To obtain good omnidirectional radiation performance,the gaps of adjacent CSRR slots are located in the opposite direction,and the antenna structure is analyzed by parameter scanning.A horizontal omnidirectional slot array antenna working at 5.8 GHz is designed.The simulation results show that the impedance bandwidth(|S11|<-10 dB)of the antenna is 4.8%(5.69 GHz~5.97 GHz),the maximum gain is 9.63 dBi,and the gain variation in the horizontal direction is less than 0.5 dB.

关 键 词：CSRR 全向天线 带状线 串行馈电 缝隙阵列天线 

分 类 号：TN823.24[电子电信—信息与通信工程]