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A C-band high-dynamic range GaN HEMT low-noise amplifier

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6 Author(s)
Hongtao Xu ; Dept. of Electr. & Comput. Eng., Univ. of California, Santa Barbara, CA, USA ; Sanabria, C. ; Chini, A. ; Keller, Stacia
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A C-band low-noise amplifier (LNA) is designed and fabricated using GAN HEMT power devices. The one-stage amplifier has a measured noise figure of 1.6 dB at 6 GHz, with an associated gain of 10.9 dB and IIP3 of 13 dBm. it also exhibits broadband operation from 4-8 GHz with noise figure less than 1.9 dB. The circuit can endure up to 31 dBm power from the input port. Compared to circuits based on other material and technology, the circuit shows comparable noise figure with improved dynamic range and survivability.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:14 ,  Issue: 6 )