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High-sensitivity microwave power sensor for GaAs-MMIC implementation

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4 Author(s)
Dehe, A. ; Inst. fur Hochfrequenztech., Tech. Hochschule Darmstadt, Germany ; Krozer, V. ; Chen, B. ; Hartnagel, H.L.

GaAs bulk micromachining combined with MESFET technology has been applied to fabricate a thermoelectric microwave power sensor in a terminating load configuration. Its advantages are technological compatibility with MMIC processes combined with excellent performance: the sensitivity under normal ambient pressure is 2.02 V/W, inherent linearity over a dynamic range of 48 dB and a thermal time constant of 500 μs; maximum VSWR of 1.07 up to 26.5 GHz. Such integrated sensors can also be used in the millimetre-wave regime

Published in:
Electronics Letters  (Volume:32 ,  Issue: 23 )

Date of Publication: 7 Nov 1996

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