平面渐变开槽天线的改进设计  

Improved design of the planar tapered slot antennas

作　　者：邓超[1,2] 谢拥军[1] 

机构地区：[1]西安电子科技大学天线与微波技术重点实验室,陕西西安710071 [2]武警工程学院科研部,陕西西安710086

出　　处：《重庆邮电大学学报（自然科学版）》2011年第1期48-52,共5页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家自然科学基金(60771040)~~

摘　　要：采用高阻值电阻和短路销钉加载对微带线馈电渐变开槽天线进行改进，提出一种新型超宽带天线结构。利用ANSOFT HFSS高频结构仿真软件对新型天线的整体结构进行优化，在材料为FR4的介质板上设计了一副工作频段为1～40GHz的天线模型。仿真结果表明，新型结构克服了传统天线中馈电线对阻抗带宽的限制，并使天线尺寸缩减了37．4％。加工制作了天线实物，并对其阻抗和辐射特性进行了测试，实测结果与仿真值吻合良好。The microstrip fed tapered slot antenna was improved with the loaded high resistor and short circuit pin, and a novel ultra wideband antenna structure was therefore proposed. The whole configuration of the novel antenna was optimized with ANSOFT HFSS, and an antenna model for 1 -40 GHz was designed on the substrate of FR4. The simulated results show that the limitation of the feed line to the impedance bandwidth is overcome and the antenna size is reduced by 37.4% by the new structure. The antenna is fabricated and its impedance and radiation characteristics are measured. There is a good agreement between the measured and simulated results

关 键 词：超宽带 平面天线 VIVALDI天线 小型化 

分 类 号：TN822[电子电信—信息与通信工程]