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A 3.1–10.6 GHz Ultra-Wideband Low Noise Amplifier With 13-dB Gain, 3.4-dB Noise Figure, and Consumes Only 12.9 mW of DC Power

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3 Author(s)
Chao Fang ; PWTC Center, Nanyang Technol. Univ., Singapore ; Law, C.L. ; Hwang, J.

A 3.1-10.6 GHz ultra-wideband two-stage pseudomorphit high electron mobility transistor low noise amplifier is presented. The first stage of the amplifier employs a resistive shunt feedback topology and two T-network sections to provide wideband input matching to a 50-Omega antenna. The current-sharing dc bias topology is used to ensure the low power consumption under fixed 3-V battery operation. The amplifier exhibits state of the art performance consuming only 12.9mW of dc power with a power gain of 12.5dB, plusmn0.5dB gain flatness, and 3.4-4.0dB noise figure. Input match is better than -12.0dB, output match is better than -15dB, and group delay is 184pSplusmn28pS

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:17 ,  Issue: 4 )