A 24-GHz SiGe phased-array receiver - LO phase-shifting approach

被引：149

作者：

Hashemi, H ^{[1
]}

Guan, X

Komijani, A

Hajimiri, A

机构：

[1] Univ So Calif, Dept Elect Engn Electrophys, Los Angeles, CA 91030 USA

[2] CALTECH, Dept Elect Engn, Pasadena, CA 91125 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2005年 / 53卷 / 02期

关键词：

BiCMOS integrated circuits; phase-locked loops; phased arrays; radio receivers; silicon; voltage-controlled oscillators (VCOs);

D O I：

10.1109/TMTT.2004.841218

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 local-oscillator phase-shifting approach is introduced to implement a fully integrated 24-GHz phased-array receiver using an SiGe technology. Sixteen phases of the local oscillator are generated in one oscillator core, resulting in a raw beam-forming accuracy of 4 bits. These phases are distributed to all eight receiving paths of the array by a symmetric network. The appropriate phase for each path is selected using high-frequency analog multiplexers. The raw beam-steering resolution of the array is better than 10degrees for a forward-looking angle, while the array spatial selectivity, without any amplitude correction, is better than 20 dB. The overall gain of the array is 61 dB, while the array improves the input signal-to-noise ratio by 9 dB.

引用

页码：614 / 626

页数：13

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