Abstract: In rail transit communication systems, power dividers/combiners are widely used. Based on the EUHT system and the design theory of wideband Wilkinson power dividers, and taking advantage of the easily-conformal and planar characteristics of microstrips, this paper designs a C-band microstrip wideband Wilkinson eight-way power divider, in order to cover the frequency range from 5.15 to 5.85 GHz. The resulting port isolation is better than 20dB; the difference in output amplitude is less than 0.15dB and there is no phase difference between outputs.

Key words: power divider, Wilkinson, port isolation, amplitude consistency, phase consistency

摘要： 在轨道交通通信系统中功分器、合路器被广泛应用，基于超宽带通信系统，依据宽带Wilkinson功分器设计理论，利用微带结构平面易共形特点，设计一种C波段微带形式宽带Wilkinson一分八等分功分器，要求覆盖的频率范围为5.15～5.85 GHz，端口隔离度优于20 dB，各端口输出幅度差异小于0.15 dB，相位基本无差异。

关键词: 功分器, Wilkinson, 端口隔离度, 幅度一致性, 相位一致性