An 18–40 GHz ultra broadband low noise amplifier MMIC
A monolithic 18-40 GHz low noise amplifier (LNA) has been developed using 0.25 mum gate length GaAs/InGaAs/AlGaAs pseudomorphic HEMT technology. This MMIC amplifier achieved 1.4-2.3 dB noise figure with more than 10 dB associate gain from 18-40 GHz. This result rivals some 0.15 mum GaAs PHEMT process.