一种S波段宽带四路功分合成网络的优化设计

Optimal Design of the Broadband Four-Way Power Dividing-Combining Network in S-Band

文章采用微带电路优化设计了一种S波段宽带四路功分合成网络,通过对宽带一分二Wilkinson单元以及单元之间级联的优化设计,使得该网络在整个S频带达到良好的性能指标,实现了宽频带和小型化。仿真结果显示,在S波段网络总口驻波<1.21,分口驻波<1.12,分口幅度一致性优于±0.02d B,分口隔离度优于-22.6d B。

A broadband four-way power dividing-combining network in S-Band is designed by using microstrip transmission line. After the promotion of the one-two Wilkinson power dividing unit, the optimization of units cascade is performed. The simulation and optimization results show that the VSWR of the main port is less than 1.21, and the VSWR of the minor ports is less than 1.12. The amplitude consistence of the minor ports is better than ±0.02 d B, and the isolation is better than-22.6 d B.