5-100 GHz InP coplanar waveguide MMIC distributed amplifier

摘要

A single-stage 5-100-GHz InP MMIC (monolithic microwave integrated circuit) amplifier with an average gain of more than 5.5 dB has been developed. This MMIC distributed amplifier has the highest frequency and bandwidth of operation (5-100 GHz) reported to date for wideband amplifiers. The average associated (not optimized) noise figure of the MMIC amplifier was approximately 5.8 dB measured over 4-40 GHz. The active devices in this seven-section distributed amplifier were 0.1- mu m mushroom gate, InGaAs-InAlAs lattice-matched HEMTs (high electron mobility transistors) on a semi-insulating InP substrate. A coplanar waveguide was the transmission medium for this 100-GHz MMIC with an overall chip dimension of 500 mu m by 860 mu m.