极化可重构的差分微带天线设计  

Design of polarization reconfigurable differential microstrip antenna

作　　者：李霖[1] 杨俊秀[1] 李进[1] 

机构地区：[1]浙江理工大学,浙江杭州310018

出　　处：《电子元件与材料》2014年第6期51-53,共3页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(No.61101052);浙江省自然科学基金资助项目(No.Y1110297)

摘　　要：提出了一种极化可重构的差分微带贴片天线。该天线不但可无缝集成于全差分射频收发前端,也可以通过改变4个PIN管开关的导通状态,调节方形贴片四角的寄生贴片的微扰状态,实现左旋圆极化、右旋圆极化以及线极化之间的切换。理论分析和仿真结果相吻合,该差分天线不仅拥有极化分集的能力,而且在工作频率约2 GHz范围,四种极化方式下的天线的回波损耗均大于10 dB,增益均大于6 dBi。A polarization reconfigurable differential microstrip antenna with switchable parasitic patches was presented The proposed antenna can be directly integrated into a full-differential RF transceiver circuit. Moreover, the polarization sense of the antenna can be switched flexibly between linear polarization, right-handed and left-handed circular polarization by controlling the states of four PIN-diode switches. Furthermore, in the working frequency range around 2 GHz, the gain of the proposed antenna is greater than 6 dBi, and the return loss is higher than 10dB under any states with the advantages of differential integration and polarization diversity.

关 键 词：极化重构天线 差分集成 差分微带天线 PIN管开关 寄生贴片 模式扰动 

分 类 号：TN713[电子电信—电路与系统]