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Argus: A 16-pixel Millimeter-Wave Spectrometer for the Green Bank Telescope

Sieth, Matthew and Devaraj, Kiruthika and Voll, Patricia and Church, Sarah and Gawande, Rohit and Cleary, Kieran and Readhead, Anthony C. S. and Kangaslahti, Pekka and Samoska, Lorene and Gaier, Todd and Goldsmith, Paul F. and Harris, Andrew I. and Gundersen, Joshua O. and Frayer, David and White, Steve and Egan, Dennis and Reeves, Rodrigo (2014) Argus: A 16-pixel Millimeter-Wave Spectrometer for the Green Bank Telescope. In: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII. Proceedings of SPIE. No.9153. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 91530P. ISBN 978-0-8194-9621-8.

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We report on the development of Argus, a 16-pixel spectrometer, which will enable fast astronomical imaging over the 85–116 GHz band. Each pixel includes a compact heterodyne receiver module, which integrates two InP MMIC low-noise amplifiers, a coupled-line bandpass filter and a sub-harmonic Schottky diode mixer. The receiver signals are routed to and from the multi-chip MMIC modules with multilayer high frequency printed circuit boards, which includes LO splitters and IF amplifiers. Microstrip lines on flexible circuitry are used to transport signals between temperature stages. The spectrometer frontend is designed to be scalable, so that the array design can be reconfigured for future instruments with hundreds of pixels. Argus is scheduled to be commissioned at the Robert C. Byrd Green Bank Telescope in late 2014. Preliminary data for the first Argus pixels are presented.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Readhead, Anthony C. S.0000-0001-9152-961X
Goldsmith, Paul F.0000-0002-6622-8396
Harris, Andrew I.0000-0001-6159-9174
Frayer, David0000-0003-1924-1122
Additional Information:© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE). Published: 23 July 2014. The authors thank Mary Soria and Heather Owen for assembling the MMIC receiver modules. This work was carried out in part at the Jet Propulsion Laboratory, which is operated by the California Institute of Technology for NASA. The Argus instrument is funded by NSF ATI grant 1207825 and preliminary technology development was supported by NSF ATI grant 0905855.
Funding AgencyGrant Number
Subject Keywords:millimeter-wave, spectrometer, cryogenic focal plane array, W-band, InP MMIC low-noise amplifiers, multichip modules, star formation
Series Name:Proceedings of SPIE
Issue or Number:9153
Record Number:CaltechAUTHORS:20150616-112023039
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Official Citation:Matthew Sieth ; Kiruthika Devaraj ; Patricia Voll ; Sarah Church ; Rohit Gawande, et al. "Argus: a 16-pixel millimeter-wave spectrometer for the Green Bank Telescope", Proc. SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, 91530P (July 23, 2014); doi:10.1117/12.2055655
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58282
Deposited By: Ruth Sustaita
Deposited On:16 Jun 2015 20:06
Last Modified:10 Nov 2021 22:02

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