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Proceedings Paper

Millimeter wave power amplifier with unconditionally stable devices
Author(s): Joao Caldinhas Vaz; Fernando Fortes; Joao Jose Costa Freire
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Paper Abstract

For portable communication terminals, power amplifiers on monolithic technology are needed. In this paper the design and test of a 60 GHz monolithic power amplifier is presented. The amplifier uses PMHFET monolithic technology with 0.15 micrometers mushroom gate length and microstrip structures. The chip size is 3mm X 1.5mm. For the amplifier design, a PMHFET nonlinear model based on continuous DC and AC measurements up to V-band was obtained. Models for some of the microstrip discontinuities were obtained from EM simulations. An output power greater than 100mW at 62GHz with more than 10dB gain was achieved. A power added efficiency of 16 percent was measured with VDS equals 2.5V.

Paper Details

Date Published: 18 December 1996
PDF: 6 pages
Proc. SPIE 2842, Millimeter and Submillimeter Waves and Applications III, (18 December 1996); doi: 10.1117/12.262726
Show Author Affiliations
Joao Caldinhas Vaz, Instituto Superior Tecnico (Portugal)
Fernando Fortes, Instituto Superior Tecnico (Portugal)
Joao Jose Costa Freire, Instituto Superior Tecnico (Portugal)

Published in SPIE Proceedings Vol. 2842:
Millimeter and Submillimeter Waves and Applications III
Mohammed N. Afsar, Editor(s)

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