Abstract
This paper reports a design of a Cascode GaN Low Noise Amplifier (LNA) with independent biasing and inter-stage matching. The HEMTs are in a cascode configuration and they are independently biased with an inter-stage matching network. The CS stage is biased for a minimum noise figure (NF) and the CG stage is biased for a maximum linearity. The inter-stage matching is then maximizing the power transfer between the two stages. The LNA provided a gain of 13.5 dB with a NF less than 3dB from 2.9 to 3.7 GHz. The OIP3 is only 25 dBm with a power consumption of 2.92W.
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