基于传输线变压器的功率合成/分配器的原理与设计

Theory and Design of Power Combiner/Divider Based on Transmission Line Transformer

基于传输线变压器的功率合成/分配器具有宽频带、应用频率高、体积小、承受功率大、损耗小的特点,是一种良好的射频器件。本文根据传输线变压器的基本理论,通过分析功率合成/分配电路的两大组成部分——功率合成/分配网络和阻抗匹配网络,分别得到对传输线和磁芯的不同要求。总结出一种设计功率合成/分配器的通用方法,为设计功率合成/分配器提供了理论参考。

The power combiner/divider based on transmission line transformer is an ideal radio frequency device as its advantages： wide operating frequency band, high operating frequency, small device volume, hundreds watt of power capacity and small insert loss. This paper gives an analysis of the power combining/dividing and impedance matching circuit net, the two main parts of the power combiner/divider. Then, according to the transmission line transformer theory, different requirements are obtained for transmission line and magnetic core. An universal design method is summarized, which offers a theoretical reference to the design of power combiner/divider.