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1.9-GHz low noise amplifier using high-linearity and low-noise composite-channel HEMTs

✍ Scribed by Zhiqun Cheng; Yong Cai; Jie Liu; Yugang Zhou; Kei May Lau; Kevin J. Chen

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
535 KB
Volume
49
Category
Article
ISSN
0895-2477

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✦ Synopsis

supply voltage, the broadband LNA exhibit a gain of 12.4 -12.7/ 17.3-18.6 dB, noise figure of Ͻ5.5/4.9 dB, input return loss better than 15.7/12.8 dB, isolation better than 30/30 dB, IIP3 of Ϫ10.5/ Ϫ10 dBm and input P 1dB of Ϫ19.5/Ϫ18.5 dBm, respectively. Compared with previously reported UWB CMOS LNAs, our LNA (at 1 V) with a much lower power consumption has an about 3-4 dB more gain and a little better (or approximately equal) noise figure performances at 3-6 GHz range. The noncascode type LNA in this paper shows a potential for low-voltage design applications.

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