新型共面波导馈电超宽带单极子天线设计  

Design of a novel ultra-wideband monopole antenna based on CPW

作　　者：邓开乐 王代强[2] 

机构地区：[1]贵州大学大数据与信息工程学院,贵州贵阳550025 [2]贵州大学人民武装学院,贵州贵阳550025

出　　处：《电子元件与材料》2016年第5期15-18,共4页Electronic Components And Materials

基　　金：国家自然基金项目资助(No.11564005)

摘　　要：提出了一种新型的超宽带单极子天线,该天线将经典圆形单极子的下半圆用两个倒梯形替代,有效减小了天线的体积,利用电磁场仿真软件Ansoft HFSS对该天线进行了仿真优化。结果表明,该天线的阻抗带宽为2.48～15.23 GHz,覆盖了超宽带通信系统的带宽。该天线在2.48～15.23 GHz带宽内的S11≤–10 d B,VSWR≤2,具有比较稳定的辐射特性,符合超宽带通信系统的要求。A novel ultra-wideband monopole antenna was proposed. The below semicircle of classic cyclo molopole of the antenna was replaced by two flip trapezoids. The proposed antenna was simulated and optimized by using the software Ansoft HFSS. The results show impedance bandwidth of the antenna is 2.48–15.23 GHz, that covers the bandwidth of the UWB communication system. The return loss S11 is less than or equal to –10 d B and the VSWR is less than or equal to 2 in the frequency range of 2.48–15.23 GHz. The proposed antenna possesses stable oriented radiation and meets the requirement of UWB communication system.

关 键 词：超宽带天线 共面波导 单极子 梯形结构 通信系统 HFSS 

分 类 号：TN82[电子电信—信息与通信工程]