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A 144 GHz power amplifier MMIC with 11 dBm output power, 10 dB associated gain and 10 % power-added efficiency

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7 Author(s)
Kallfass, I. ; Fraunhofer Inst. for Appl. Solid-State Phys. (IAF), Freiburg, Germany ; Pahl, P. ; Massler, H. ; Leuther, A.
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A millimeter-wave monolithic integrated circuit power amplifier operating in the frequency range between 135 and 155 GHz is presented. The D-band power amplifier, realized in a 100 nm gate length metamorphic high electron mobility transistor technology, employs a three-stage design with four parallel transistors in the output stage. At 144 GHz and under 1-dB gain compression, the amplifier achieves an output power of more than 11 dBm with an associated gain of 10 dB and a high power-added efficiency of 10%. A comparison to state-of-the-art power amplifiers at high millimeter-wave frequencies is given.

Published in:

Microwave Symposium Digest, 2009. MTT '09. IEEE MTT-S International

Date of Conference:

7-12 June 2009