A terahertz on-chip InP-based power combiner designed using coupled-grounded coplanar waveguide lines  

作　　者：Huali Zhu Yong Zhang Kun Qu Haomiao Wei Yukun Li Yuehang Xu Ruimin Xu 朱华利;张勇;屈坤;魏浩淼;黎雨坤;徐跃杭;徐锐敏(School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China)

机构地区：[1]School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China

出　　处：《Chinese Physics B》2021年第12期329-333,共5页中国物理B（英文版）

基　　金：Project supported in part by the National Natural Science Foundation of China(Grant No.61871072)。

摘　　要：This article presents the design and performance of a terahertz on-chip coupled-grounded coplanar waveguide(GCPW)power combiner using a 50μm-thick InP process.The proposed topology uses two coupled-GCPW lines at the end of the input port to substitute two quarter-wavelength GCPW lines,which is different from the conventional Wilkinson power combiner and can availably minimize the coverage area.According to the results obtained,for the frequency range of 210-250 GHz,the insertion losses for each two-way combiner and four-way combiner were lower than 1.05 dB and1.35 dB,respectively,and the in-band return losses were better than 11 dB.Moreover,the proposed on-chip GCPW-based combiners achieved a compromise in low-loss,broadband,and small-size,which can find wide applications in terahertz bands,such as power amplifiers and signal distribution networks.

关 键 词：coupled-GCPW InP technology terahertz monolithic integrated circuits(TMICs) Wilkinson power combiner 

分 类 号：TN73[电子电信—电路与系统]