Tang, Yulung and Wadefalk, Niklas and Kooi, Jacob W. and Schleeh, Joel and Moschetti, Giuseppe and Nilsson, Per-Åke and Pourkabirian, Arsalan and Cha, Eunjung and Tuzi, Silvia and Grahn, Jan (2017) Cryogenic W-band LNA for ALMA band 2+3 with average noise temperature of 24 K. In: 2017 IEEE MTT-S International Microwave Symposium. IEEE , Piscataway, NJ, pp. 176-179. ISBN 978-1-5090-6360-4. https://resolver.caltech.edu/CaltechAUTHORS:20171017-074037432
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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.
| Item Type: | Book Section | ||||||
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| Additional Information: | © 2017 IEEE. | ||||||
| Subject Keywords: | MMIC, cryogenic, W-band, LNA, InP, low noise amplifier, ALMA, noise temperature | ||||||
| Record Number: | CaltechAUTHORS:20171017-074037432 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20171017-074037432 | ||||||
| Official Citation: | Y. Tang et al., "Cryogenic W-band LNA for ALMA band 2+3 with average noise temperature of 24 K," 2017 IEEE MTT-S International Microwave Symposium (IMS), Honololu, HI, USA, 2017, pp. 176-179. doi: 10.1109/MWSYM.2017.8058981 keywords: {Cryogenics;HEMTs;III-V semiconductor materials;Indium phosphide;MMICs;Noise measurement;ALMA;InP;LNA;MMIC;W-band;cryogenic;low noise amplifier;noise temperature}, URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8058981&isnumber=8058449 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 82401 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 17 Oct 2017 21:31 | ||||||
| Last Modified: | 20 Nov 2020 23:47 |
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