一种双频圆极化平面单极天线的设计与实现  

Design and Implementation of Dual-Frequency Circularly Polarized Planar Monopole Antenna

作　　者：吴锟[1] 屈德新[2] 谭成[1] 胡永金[1] 

机构地区：[1]解放军理工大学通信工程学院研究生1队,江苏南京210007 [2]解放军理工大学通信工程学院卫星通信系

出　　处：《军事通信技术》2012年第1期68-70,89,共4页Journal of Military Communications Technology

摘　　要：文章设计了一种用于实现S波段双频圆极化的平面单极天线。该天线通过在圆环形单极子贴片上加载四个相互之间夹角90°的支节,分别实现了在2.4 GHz^2.52 GHz和3.28 GHz^3.39 GHz两个频段的圆极化辐射,通过阶梯形激励条带的设计,改善了阻抗带宽。借助于仿真软件对天线参数进行优化,并在此基础上制作了实物。测试结果表明,该设计达到了仿真的效果。该天线结构简单,加工方便,制作成本低,具有实际的应用价值。A dualfrequency circularly polarized planar monopole antenna for Sband was designed. The proposed antenna realizes circularly polarized radiation at 2.4-2.52 GHz and 3.28- 3. 39 GHz by loading four branches at the monopole ring patch. The angle of each two branches is 90°. The impedance bandwidth is better for the design of the step feeding strip. The parameters of the antenna were optimized by the simulation software, and the antenna was manuIaetured basd on the simulation. The measured result shows that the antenna has a simple configuration, is simply fabricated and has practical value.

关 键 词：平面单极天线 双频 圆极化 

分 类 号：TN82[电子电信—信息与通信工程]