Design of a noise-canceling differential CMOS LNA for 3.1–10.6 GHz UWB receivers

2009 IEEE 8th International Conference on ASIC Pub Date : 2009-12-11 DOI:10.1109/ASICON.2009.5351170

Jinhua Liu, Guican Chen, Ruizhi Zhang

引用次数: 8

Abstract

An ultra-wideband (UWB) 3.1–10.6 GHz fully differential low noise amplifier (LNA) employing the broadband noise-canceling technique is presented. With the proposed circuit topology, the noise from the input matching transistor is entirely suppressed over the full UWB band. The LNA is designed in 0.18µm CMOS technology. The simulated results show that the noise figure is 3.7–4.5 dB and the power gain is 13.4–14.1 dB in the desired UWB band, both the input and output reflection coefficients are below −10dB, and the IIP3 is −6.3dBm at 5.7 GHz. It consumes 12.5 mW from a 1.8V supply.1

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3.1-10.6 GHz UWB接收机降噪差分CMOS LNA设计

提出了一种采用宽带降噪技术的超宽带3.1 ~ 10.6 GHz全差分低噪声放大器。利用所提出的电路拓扑，来自输入匹配晶体管的噪声在整个UWB频带内被完全抑制。LNA采用0.18µm CMOS技术设计。仿真结果表明，在期望的UWB频段内，噪声系数为3.7 ~ 4.5 dB，功率增益为13.4 ~ 14.1 dB，输入和输出反射系数均低于−10dB，在5.7 GHz时IIP3为−6.3dBm。它从1.8V的电源中消耗12.5兆瓦

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2009 IEEE 8th International Conference on ASIC

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