A 1.2-dB Noise Figure Broadband GaAs Low-Noise Amplifier with 17-dB Gain for Millimeter-Wave 5G Base-Station

A 24-30GHz low-noise amplifier (LNA) with 1.2-dB noise figure (NF) is designed for millimeter-wave 5G stations. The LNA has 2 stages, 1
^st
stage utilizes common-source topology with source degeneration inductor for simultaneous noise and input match. 2
^nd
stage uses the same structure for staging match and the trade-off between gain and noise optimization. A structure of parallel resistor and capacitor is utilized for bandwidth and stability. Simulation result shows that the LNA achieves peak gain of 17.8-dB, and the 1-dB bandwidth is over 6-GHz. NF is below 1.35-dB in the bandwidth.