一种对称支节的单极子双频天线设计

Design of Single Pole Dual Frequency Antenna with Symmetric Branch

设计了一种对称支节的单极子双频天线。天线分为辐射面和接地面两部分,分别由一个多边形和一开口对称的两个支节组成。通过在辐射面上引入X形槽及接地面上的对称支节,天线实现了双频特性。分析采用工具是ANSYS17.0,通过该工具对天线进行了设计和优化,研究和分析了影响双频特性的关键参数及天线的增益特性。仿真结果表明天线的两个工作中心频率为1.07GHz和2.36GHz,并且两个工作频率具有相对独立性,在工作频率内天线的增益较好,且具有良好的全向辐射特性。

A symmetrical branch monopole dual-frequency antenna is proposed and designed.The antenna is divided into two parts:a radiating patch and a grounding plane,which are respectively composed of a polygon and two branches with symmetrical openings.By introducing an X-shaped slot on the radiation patch and a symmetrical branch on the ground plane,the antenna realizes dual-frequency characteristics.The antenna is designed and optimized by ANYSYS 17.0,the key parameters affecting the dual-frequency characteristics and the gain characteristics of the antenna are also explored and analyzed.The simulation results indicate that the two operating frequencies of antenna are 1.07GHz and 2.36GHz,which are relatively independent,and that the antenna has good gain and omnidirectional radiation characteristics in the operating frequencies.