宽带水平极化全向天线

一种宽带水平极化全向天线

内容简介：本论文提出了一种用于无线通信的宽带水平极化全向天线，天线由四个弧形的印刷振子和一个宽带的馈电网络组成。四个弧形的印刷振子组成一个圆环用来实现水平极化全向辐射。馈电网络包括四个宽带的巴伦结构和一个阻抗匹配电路。测试得到的10-dB回波损耗带宽为31﹪（1.66 GHz-2.27 GHz），且在整个频段内的不圆度小于1.5 dB.在水平极化天线单元的基础上，设计了一个8单元的水平极化天线阵列。测试表明，天线阵列具有34﹪（1.67 GHz-2.35 GHz）的10-dB回波损耗带宽，在水平面上的不圆度小于2 dB。

Abstract：This paper proposes a new broadband horizontally polarized (HP) omnidirectional antenna for wireless communications. The proposed antenna includes four printed arc dipoles and a broadband feeding network. The four arc dipoles fromed an loop for horizontally polarization in omnidirection. The feeding network consists of four broadband balun and an impedance matching circuit. The simulation shows that this antenna has a bandwidth of 31﹪(1.66 GHz-2.27 GHz) for return loss≥10 dB. The omnidirectivity is less than 1.5 dB over the whole frequency band. In addition, an e-element omnidirectional horizontal polarized antenna array is designed. Measurement shows the array has a bandwidth of 34%(1.67-2.35 GHz) for return loss≥10 dB. The omnidirectivity is less than 2 dB over the whole frequency band for the antenna array.

作者：全旭林, 靳贵平, 李融林,

关键词：通信技术, 水平极化, 全向天线, 宽带天线, 无线通信,