半环天线仿真建模及其性能测试分析

Simulation Modeling and Performance Testing on Half-loop Antenna

半环天线是车载短波常用天线之一。利用HFSS仿真软件对半环天线进行了基础建模,对该天线的反射损耗曲线和4个不同频率点的方向图进行了仿真,分析了不同频率对方向图的影响。利用实测数据对比分析了半环天线和三环天线的通信性能,实验结果表明半环天线能有效克服短波通信中的近距离盲区。

The half-loop antenna is one of the vehicular HF antenna. The base modeling of half-loop antenna is implemented by using HFSS simulation software,then the reflection loss curve and the antenna patterns of four frequencies are simulated and the influence of different frequencies on the direction patterns is analyzed. The communication performance of the half- loop antenna and the 3- loop antenna is compared and analyzed by test values. The experimental results show that the half- loop antenna can effectively overcome the blind area in HF communication.