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A CMOS Low Noise Amplifier with RLC-Impedance Feedback for 3-5GHz Ultra-Wideband Wireless System

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2 Author(s)
Zhe-Yang Huang ; Nat. Chiao Tung Univ., Hsin-Chu ; Che-Cheng Huang

In this paper a CMOS low-noise amplifier (LNA) is designed for ultra-wideband (UWB) wireless receiver radio system. The design consists of a wideband input impedance matching network, a cascoded amplifier with shunt-peaked load, a RLC-impedance feedback loop and an output buffer for measurement purpose. It is simulated in TSMC 0.18um standard RF CMOS process. The LNA gives 13.65dB maximum power gain between 3.1GHz-5.0GHz while consuming 12.51mW through a 1.8V supply voltage. Over the 3.1GHz-5.0GHz frequency band, the minimum noise figure (NF) is 3.67dB. Input return loss lower than -10.1 dB in all bandwidth have been achieved.

Published in:
Integrated Circuits, 2007. ISIC '07. International Symposium on

Date of Conference: 26-28 Sept. 2007

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