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High gain monolithic W-band low noise amplifiers based on pseudomorphic high electron mobility transistors

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8 Author(s)
Der-Wei Tu ; Martin Marietta Labs, Baltimore, MD, USA ; Duncan, S.W. ; Eskandarian, A. ; Golja, B.
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Five versions of monolithic W-band 0.1 μm AlGaAs-InGaAs-GaAs pseudomorphic HEMT, four-stage, low noise amplifiers based on two different designs were developed. These millimeter wave monolithic integrated circuits have produced a minimum noise figure of 3.5 dB with 23.0 dB gain at 92 GHz and a maximum gain of 33.5 dB with a 6.2 dB noise figure at 102 GHz. This is the highest gain yet reported for a single chip W-band amplifier. The chips feature coplanar waveguide circuit elements and compact size for low-cost production, single-polarity bias requirement, and a minimum of DC bonding pads

Published in:
Microwave Theory and Techniques, IEEE Transactions on  (Volume:42 ,  Issue: 12 )

Date of Publication: Dec 1994

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