共面波导馈电的双频天线设计  

Design of dual-band antenna fed by coplanar-waveguide

作　　者：彭升[1] 郑宏兴[1] 张玉贤[1] 万小凤[1] 

机构地区：[1]天津职业技术师范大学天线与微波技术研究所,天津300222

出　　处：《天津职业技术师范大学学报》2015年第2期19-22,共4页Journal of Tianjin University of Technology and Education

基　　金：天津市应用基础及前沿技术研究计划(12JCYBJC10500);天津职业技术师范大学科研发展基金项目(KJY14-04)

摘　　要：设计了一种用共面波导馈电的双频天线，由切角的矩形和等腰梯形结构组合而成，使天线工作在2．32～2．57GH：和5．2～5．8GHz频段。仿真和实测结果表明：采用共面波导馈电使天线辐射的远场方向图有更好的对称性，这种天线工作频段内S11参数小于-10dB，电压驻波比小于1．5，相对工作带宽达到52％，可应用于无线局域网通信中。A dual-band antenna is proposed in this paper. It is constructed with comer-free rectangle and isosceles trape zoid, and fed by a coplanar-waveguide （CPW）. Operation frequencies of the antenna are in 2.32-2.57 GHz and 5.2-5.8 GHz. Simulation and measurement results show that the antenna has good symmetrical radiation pattern in far field as using CPW feed, and has wonderful impedance bandwidth and radiation efficiency, and the antenna S11 parameter below -10 db in working frequency band; VSWR below 1.5, the work relative bandwidth reaches 52%. It can be used in the wireless local area networks communication system.

关 键 词：共面波导馈电 平面型天线 无线局域网 

分 类 号：TN822.8[电子电信—信息与通信工程]