A 3-6-GHz Wideband Compact 6-Bit Phase Shifter in 0.5-μm GaAs Technology

被引：21

作者：

Chen, Jiahui ^{[1
]}

Mou, Shouxian ^{[1
]}

Ma, Kaixue ^{[2
]}

Meng, Fanyi ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Phys, Chengdu 610054, Peoples R China

[2] Tianjin Univ, Sch Microelect, Tianjin 300072, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2020年 / 30卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Topology; Switches; Inductors; Transistors; Gallium arsenide; Network topology; Phase measurement; 05-mu m GaAs; broadband; compact; low loss; monolithic microwave integrated circuit (MMIC); phase shifter (PS); phased array;

D O I：

10.1109/LMWC.2020.3007836

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents a 3-6-GHz wideband compact 6-bit phase shifter (PS) in 0.5-mu m GaAs pHEMT process. It combines a 3-bit enhanced high-pass/low-pass topology, a 2-bit modified low-pass/resonator topology, and a 1-bit switched-filter structure, with optimized cascade order to achieve a bandwidth (BW) up to 66.7%. Since the proposed PS consists of lumped elements and minimized the number of switches and inductors, it achieves a compact core size of 1.214 mm(2). The 64-output state PS exhibits high phase resolution of 5.625 degrees with an rms phase error (PE) of less than 4 degrees, and an insertion loss (IL) less than 6.7 dB at 3-6 GHz. To the best of our knowledge, this PS achieves the largest BW with the smallest chip size among the published 5-bit/6-bit GaAs/GaN PSs over a similar band.

引用

页码：794 / 797

页数：4

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