Pole-Converging Intrastage Bandwidth Extension Technique for Wideband Amplifiers

被引：82

作者：

Feng, Guangyin ^{[1
]}

Boon, Chirn Chye ^{[1
]}

Meng, Fanyi ^{[2
]}

Yi, Xiang ^{[1
]}

Yang, Kaituo ^{[1
]}

Li, Chenyang ^{[1
]}

Luong, Howard C. ^{[3
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, IC Design Ctr Excellence, VIRTUS, Singapore 639798, Singapore

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

[3] Hong Kong Univ Sci & Technol, Dept Elect & Comp Engn, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2017年 / 52卷 / 03期

关键词：

Broadband amplifiers; bandwidth extension; CMOS amplifiers; frequency compensation; gain boosting; gain flatness; low-noise amplifiers (LNA); millimeter-wave (mm-wave) integrated circuits; pole converging; transformer feedback; LOW-NOISE AMPLIFIER; RECEIVERS; DESIGN; LNAS;

D O I：

10.1109/JSSC.2016.2641459

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：

To overcome limitations on bandwidth extension in conventional design techniques, a novel pole-converging technique with transformer feedback for intrastage bandwidth extension is proposed and analyzed in this paper. For verification, a three-stage cascode low-noise amplifier (LNA) based on the pole converging and negative drain-source transformer feedback is designed and implemented in a 65-nm CMOS technology. Consuming 27 mW dc power from a 1.8 V supply, the fabricated prototype exhibits peak power gain of 18.5 dB, minimum noise figure of 5.5 dB, 3-dB bandwidth of 30 GHz, and fractional bandwidth of 38.7%. The bandwidth of the three-stage cascode LNA is significantly extended without increasing power consumption and die size.

引用

页码：769 / 780

页数：12

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