V-band high-efficiency monolithic pseudomorphic HEMT power amplifiers
- 1 October 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Guided Wave Letters
- Vol. 2 (10), 394-396
- https://doi.org/10.1109/75.160118
Abstract
V-band monolithic power amplifiers have been developed and demonstrate state-of-the-art performance. For a single-stage MMIC amplifier employing a 200- mu m pseudomorphic HEMT, 151.4 mW (757 Mw/mm) output power with 26.4% power-added efficiency at 60 GHz is achieved. Maximum power-added efficiency of 30.6% at 130-mW output power is also obtained. A three-stage MMIC amplifier utilizing the same devices demonstrated 80-mW output power, 20.5% power-added efficiency, and 17-dB associated gain at 57 GHz. The linear gain of the amplifier was 21.5 dB.Keywords
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