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Broadband MMIC LNAs for ALMA Band 2+3 With Noise Temperature Below 28 K

Cuadrado-Calle, David and George, Danielle and Fuller, Gary A. and Cleary, Kieran and Samoska, Lorene and Kangaslahti, Pekka and Kooi, Jacob W. and Soria, Mary and Varonen, Mikko and Lai, Richard and Mei, Xiaobing (2017) Broadband MMIC LNAs for ALMA Band 2+3 With Noise Temperature Below 28 K. IEEE Transactions on Microwave Theory and Techniques, 65 (5). pp. 1589-1597. ISSN 0018-9480. doi:10.1109/TMTT.2016.2639018.

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Recent advancements in transistor technology, such as the 35 nm InP HEMT, allow for the development of monolithic microwave integrated circuit (MMIC) low noise amplifiers (LNAs) with performance properties that challenge the hegemony of SIS mixers as leading radio astronomy detectors at frequencies as high as 116 GHz. In particular, for the Atacama Large Millimeter and Submillimeter Array (ALMA), this technical advancement allows the combination of two previously defined bands, 2 (67-90 GHz) and 3 (84-116 GHz), into a single ultra-broadband 2+3 (67-116 GHz) receiver. With this purpose, we present the design, implementation, and characterization of LNAs suitable for operation in this new ALMA band 2+3, and also a different set of LNAs for ALMA band 2. The best LNAs reported here show a noise temperature less than 250 K from 72 to 104 GHz at room temperature, and less than 28 K from 70 to 110 GHz at cryogenic ambient temperature of 20 K. To the best knowledge of the authors, this is the lowest wideband noise ever published in the 70-110 GHz frequency range, typically designated as W-band.

Item Type:Article
Related URLs:
URLURL TypeDescription
Fuller, Gary A.0000-0001-8509-1818
Kooi, Jacob W.0000-0002-6610-0384
Additional Information:© 2017 IEEE. This work is licensed under a Creative Commons Attribution 3.0 License. Manuscript received October 10, 2016; revised November 28, 2016; accepted December 8, 2016. Date of publication January 30, 2017; date of current version May 4, 2017. This work was supported in part by the Science and Technology Facility Council (STFC) under Grant ST/LNST/L000768/1 and Grant ST/M003957/1, in part by the European Southern Observatory Program “Advanced Study for Upgrades of the Atacama Large Millimeter/Submillimeter Array,” and in part by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. The work of D. Cuadrado-Calle was supported by STFC under Grant ST/K502182/1.
Funding AgencyGrant Number
Science and Technology Facilities Council (STFC)ST/LNST/L000768/1
Science and Technology Facilities Council (STFC)ST/M003957/1
European Southern Observatory (ESO)UNSPECIFIED
Science and Technology Facilities Council (STFC)ST/K502182/1
Subject Keywords:Atacama Large Millimeter and Submillimeter Array (ALMA), band 2+3, broadband, cryogenic, low noise amplifier (LNA), monolithic microwave integrated circuit (MMIC), 35 nm InP, W-band, WR-10
Issue or Number:5
Record Number:CaltechAUTHORS:20170202-083042151
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Official Citation:D. Cuadrado-Calle et al., "Broadband MMIC LNAs for ALMA Band 2+3 With Noise Temperature Below 28 K," in IEEE Transactions on Microwave Theory and Techniques, vol. 65, no. 5, pp. 1589-1597, May 2017. doi: 10.1109/TMTT.2016.2639018 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:73982
Deposited By: Ruth Sustaita
Deposited On:02 Feb 2017 19:04
Last Modified:11 Nov 2021 05:23

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