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Published June 2017 | Version public
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Cryogenic W-band LNA for ALMA band 2+3 with average noise temperature of 24 K

Creators

  • 1. ROR icon Chalmers University of Technology

Abstract

A cryogenic low noise amplifier that operates across the E and W-bands, from 65 GHz to 116 GHz, has been developed using 0.1-μm InP HEMT technology. Such wideband performance makes this work suitable for the ALMA telescope where two of its bands, 67–90 GHz of Band 2 and 85–116 GHz of Band 3, can be combined into one. At an ambient temperature of 5.5 K, this W-band LNA demonstrates an average noise temperature of 24.7 K with more than 21 dB gain and +/−3.0 dB gain flatness from 65 GHz to 116 GHz. To the best knowledge of the authors, this combination of bandwidth, gain flatness and noise temperature has not been demonstrated before.

Additional Information

© 2017 IEEE.

Additional details

Identifiers

Eprint ID
82401
Resolver ID
CaltechAUTHORS:20171017-074037432

Dates

Created
2017-10-17
Created from EPrint's datestamp field
Updated
2021-11-15
Created from EPrint's last_modified field