CAJ | 학술논문

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。
재전통적인쇄우겁자상통과절각、향상만절적형식래확전우겁자적외위륜곽，병통과개변궤전개로지절적관도적방식래전관천선적대관，병장해결구응용우쌍겁화기참천선중。연구표명，단원천선재1.50~3.38GHz범위내， VSWR<2，상대대관체도77%，획득료교호적대관특성；조성쌍겁화천선후，재1.8~2.7GHz적빈솔범위내，천선적교차겁화비、수평면파속관도、격리도등지표능교호만족이동통신적요구，가이응용우이동통신계통중。
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.