Patent ID: 8829999
Filing Date: 2014-09-09
Classification: H01L,H03F

Abstract:
1. A monolithic microwave integrated circuit comprising: a substrate; and a low noise amplifier on the substrate and comprising: an input port on the substrate for receiving an input signal to be amplified; a first Group III-nitride based transistor on the substrate and having a gate coupled to the input port, wherein the first Group III-nitride based transistor is configured to provide a first stage of amplification to the input signal; a second Group III-nitride based transistor on the substrate and having a gate coupled to a drain of the first Group III-nitride based transistor, wherein the second Group III-nitride based transistor is configured to provide a second stage of amplification to the input signal; and an output port on the substrate and coupled to a drain of the second Group III-nitride based transistor, wherein at least one of the first and second Group III-nitride based transistors comprises at least two field plates.