匹配网络两种设计方法的对比研究

Comparative study of two design methods of matching network

电小天线的阻抗特性非常恶劣,与传输线匹配相当困难,如果是宽带匹配更是难上加难,同时其效率非常低。因此,找到合适的匹配网络的设计方法就很重要了。为了找到较好的设计匹配网络的方法,以某电台的单极子鞭状天线匹配网络的设计为例,通过对匹配网络的两种常见得出方法——理论计算和软件仿真进行了研究,对比分析了误差出现的原因,为匹配网络的研究方法提供了思路。

The electrically small antenna＇s impedance is too bad to match with the transmission line. And it is even harder to match when matching network is broadband, its efficiency is also very low. Thus, finding a suitable design method of matching network is very important. This article is designed to find better method of matching network with an example of a station＇s monopole whip antenna. Through two common methods-theoretical calculation and simulation software , the differences occurred in the study is researched. This paper is believed to provide a guideline for the design of matching networks.