A 0.5-6 GHz 360° Vector-Sum Phase Shifter in 0.13-μm CMOS

被引：0

作者：

Hu Zijie ^{[1
]}

Mouthaan, Koen ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117548, Singapore

来源：

2014 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) | 2014年

关键词：

CMOS active phase shifter; wideband vectorsum phase shifter; phase-reversible VGA;

D O I：

暂无

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：

A 0.5-6 GHz CMOS vector-sum phase shifter with a full 360 degrees phase range is presented. Employing phase-reversible variable gain amplifiers (VGAs), for simultaneous amplitude and polarity control, the phase shifter realizes a continuously tunable phase shift of 360 degrees with only one DC control voltage and single-ended 1-and Q-signals. A maximum gain of 11 dB is measured with a 2-dB gain variation over the 0.5-6 GHz band. The root-mean-square (RMS) amplitude and phase error are less than 0.95 dB and 7 degrees. The measured in-band noise figure (NF) is better than 13 dB. Wideband input and output matching are also achieved throughout the entire band. Operating at 1.5 V, the entire circuit consumes 27.5 mW. To the best of the authors' knowledge, it is the first time the phase-reversible VGA is used to realize a full-360 degrees vector sum phase shifter, which eliminates the need for an input balun and a complicated control circuit.

引用

页数：3