Noise current feedforward for noise cancellation in the wideband transformer shunt feedback low noise amplifier

被引：1

作者：

Li, Xiaolong ^{[1
]}

Tian, Yubo ^{[1
]}

Xie, Zhibin ^{[1
]}

Zhang, Zhenkai ^{[1
]}

Wang, Biao ^{[1
]}

Zhang, Bing ^{[1
]}

机构：

[1] Jiangsu Univ Sci & Technol, Dept Elect & Informat, Zhenjiang 2012003, Peoples R China

来源：

JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS | 2014年 / 59卷 / 11期

基金：

中国国家自然科学基金;

关键词：

DISTORTION CANCELLATION; FRONT-END; LNA; CMOS;

D O I：

10.1134/S1064226914110254

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 noise current feedforward (NCF) technique for noise cancellation in the wideband transformer shunt feedback (TSF) low noise amplifier (LNA) is proposed. The NCF can detect and cancel the thermal noise of the TSF network. It is also suitable to cancel those noise contributed by the passive unilateral shunt feedback networks in common current mode LNAs. Implemented in SMIC 0.18 mu m CMOS process and operated in the typical radio astronomy frequency range from 0.6 GHz to 1.6 GHz, the TSF LNA that employs the NCF shows approximately 0.2-0.5 dB lower noise figure than the overwhelming resistive shunt feedback LNA that exploits a conventional noise voltage feedforward technique when consuming the same power.

引用

页码：1298 / 1302

页数：5

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