两级宽带差分LNA中噪声和IM3谐波的消除

2021 Fourth International Conference on Electrical, Computer and Communication Technologies (ICECCT) Pub Date : 2021-09-15 DOI:10.1109/ICECCT52121.2021.9616845

G. Amarnath, V. A, D. Sudha

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引用次数: 0

摘要

本文给出了一种两级差分低噪声放大器(LNA)的噪声和im3谐波的消除技术。采用一级交叉耦合升压推挽放大器，降低了噪声系数和im3失真。采用第二级消除了第一级产生的热噪声和IM3。所提出的低噪声放大器在0.1-2.6 GHz带宽下，功耗为12mw，电源电压为1.3 V，增益为15- 17db。噪声系数为1.5 ~ 2.6 dB, IIP3为-3 ~ 0 dBm, IIP2为17 ~ 21 dBm。所提出的低噪声放大器采用65 nm CMOS技术，芯片面积为0.009。

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Noise and IM3 Harmonics Cancelling in Two-Stage Wideband Differential LNA

This manuscript gives a cancelling technique for noise and IM3-harmonic for two-stage differential-low noise- amplifier (LNA). The noise-figure and IM3-distortion is reduced by adopting first-stage with cross-coupled boosted push-pull amplifier. The thermal noise and IM3 which are generated from first stage is cancelled by adopting second stage. The proposed low-noise-amplifier having a 15-17 dB of gain in a 0.1-2.6 GHz of wide-bandwidth by consuming 12 mW with a power supply of 1.3 V. The noise-figure is 1.5-2.6 dB, IIP3 is -3 to 0 dBm and IIP2 is 17 to 21 dBm are achieved. The proposed low-noise-amplifier is designed with 65 nm CMOS technology and 0.009 chip area.

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2021 Fourth International Conference on Electrical, Computer and Communication Technologies (ICECCT)

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