【作者】 吴昌英； 马延平； 张园； 茹铁山； 徐远超；

【Author】 WU Changying;MA Yanping;ZHANG Yuan;RU Tieshan;XU Yuanchao;School of Electronics and Infomation,Northwestern Polytechnical University;

【机构】 西北工业大学电子信息学院；

【摘要】 本文设计了一款超宽带双极化测量探头,工作频带覆盖0.6GHz～3GHz,有较低的交叉极化。该天线采用了指数型渐变槽线形式。为了降低低频处的侧向辐射和回波损耗,在天线侧边进行了开槽和金属贴片加载。为了消除低频处的主瓣凹陷,采用了一种四棱锥形金属地结构。制作了天线实物,实验结果和仿真结果吻合良好。更多还原

【Abstract】 In this paper,an ultra broadband dual polarization antenna is proposed to be used as near field probes.The antenna covers from 0.6 GHz to 3 GHz,and it has low cross polarization.Conventional exponentially tapered slot antenna is used first.Then tapered slot edge is introduced for restraining the lateral radiation and metal strips are loaded for reducing low frequency return loss.In order to eliminate main lobe sag at low frequency,ground is modified into pyramid.Finally,the prototype is fabricated and measured.更多还原