一种双极化印刷偶极子基站天线

一种双极化印刷偶极子基站天线

内容简介：在传统的印刷偶极子上通过切角、向上弯折的形式来扩展偶极子的外围轮廓，并通过改变馈电开路枝节的宽度的方式来展宽天线的带宽，并将该结构应用于双极化基站天线中。研究表明，单元天线在1.50~3.38GHz范围内， VSWR<2，相对带宽达到77%，获得了较好的带宽特性；组成双极化天线后，在1.8~2.7GHz的频率范围内，天线的交叉极化比、水平面波束宽度、隔离度等指标能较好满足移动通信的要求，可以应用于移动通信系统中。

Abstract：This paper proposes a method of extension of the outline profile by cutting angles and bent upward in the patch and of bandwidth extension through extending and changing open slot in feed location, which is implemented in the dual-polarized base station antenna. The research has shown that the single antenna has a bandwidth of 1.50-3.38GHz,and Voltage Standing Wave Ratio(VSWR) of less than 2. The relative bandwidth reached 77%, which gets a better bandwidth. As a dual-polarized antenna which could apply to mobile communication systems, its cross-polarization ratio, the horizontal plane beam width;isolation can preferably meet the requirements of mobile communication in the frequency scope of 1.8GHz to 2.7GHz.

作者：夏小勇, 廖成,

关键词：印刷偶极子, 基站天线, 带宽,