A Caltech Library Service

QUIET Coherent Polarimeter Modules

Reeves, R. (2012) QUIET Coherent Polarimeter Modules. Journal of Low Temperature Physics, 167 (5-6). pp. 929-935. ISSN 0022-2291. doi:10.1007/s10909-012-0467-0.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


The Q/U Imaging ExperimenT (QUIET) consists of a pair of radiometer arrays designed to measure the B-mode polarization of the Cosmic Microwave Background (CMB) at 44 GHz (Q-band) and 95 GHz (W-band) with 19 and 90 modules at each frequency. The architecture of both arrays is based on miniaturized coherent polarimeters using High Electron Mobility Transistor (HEMT) chips for amplification; QUIET is the largest coherent microwave array ever fielded. We describe the detector technology used in Phase I of QUIET and our efforts to improve both the W-band module design and the fundamental performance of the HEMT amplifiers. These technology developments have wide application in the field of radio astronomy.

Item Type:Article
Related URLs:
URLURL TypeDescription
Additional Information:© 2012 Springer Science+Business Media, LLC. Received: 31 July 2011; Accepted: 2 January 2012; Published online: 21 January 2012.
Group:Keck Institute for Space Studies
Subject Keywords:CMB polarization; Coherent microwave receivers; Cryogenic amplifiers
Issue or Number:5-6
Record Number:CaltechAUTHORS:20120601-115651739
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:31778
Deposited On:01 Jun 2012 21:15
Last Modified:09 Nov 2021 20:00

Repository Staff Only: item control page