Highly dense dual-channel C-X-Ku and 6-18 GHz MMIC power amplifiers

A state-of-the-art dual-channel 4-stage MMIC (monolithic microwave integrated circuit) power amplifier operating over C-X-Ku bands has been produced. The chip is very small, measuring only 4.35*5.1 mm. At 25 degrees C, each one of its channels provides 29.5+or-0.5 dBm at 2 dB compression (2 dBC) from a linear gain of 19.5+or-1.5 dB over 6-17 GHz. The drain bias is 7 V and the power-added efficiency (PAE) is 11-14%. At 85 degrees C, power and gain decrease by, respectively, 0.5 dB and 3.5-4 dB. The design was iterated once to produce the first all monolithic power amplifier chip which operates over 6-18 GHz and provides 28-29 dBm at 18 GHz. The architecture and size were maintained in the design. At 25 degrees C with V/sub ds/=7 V, it provides 29-30.5 dBm at 2 dBC from a linear gain of 19+or-1.25 dB over 6-18 GHz. At 85 degrees C, 28.75-30 dBm also at 2 dBC from a linear gain of 15+or-1 dB with PAE of 10-13% was achieved over 6-18 GHz.<>