Published June 2012
| public
Journal Article
QUIET Coherent Polarimeter Modules
- Creators
- Reeves, R.
- QUIET Collaboration
Abstract
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.
Additional Information
© 2012 Springer Science+Business Media, LLC. Received: 31 July 2011; Accepted: 2 January 2012; Published online: 21 January 2012.Additional details
- Eprint ID
- 31778
- Resolver ID
- CaltechAUTHORS:20120601-115651739
- Created
-
2012-06-01Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Keck Institute for Space Studies