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A log-periodic channelizer for multichroic antenna-coupled TES-bolometers

O'Brient, Roger, Ade, Peter A. R., Arnold, Kam, Edwards, Jennifer, Engargiola, Greg, Holzapfel, William, Lee, Adrian T., Myers, Michael, Rebeiz, Gabriel, Richards, Paul and Suzuki, Aritoki 2011. A log-periodic channelizer for multichroic antenna-coupled TES-bolometers. IEEE Transactions on Applied Superconductivity 21 (3) , pp. 180-183. 10.1109/TASC.2010.2093090

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We have fabricated a dual-polarized multichroic antenna-coupled bolometer prototype pixel for use in focal planes of Cosmic Microwave Background (CMB) polarimetry experiments and for submillimeter observations of high redshift galaxies. We couple millimeter and submillimeter power onto the detector with a dual polarized sinuous antenna that has a continuous bandwidth of 60-250 GHz and we use a contacting extended hemispherical lens to boost the gain high enough to match the optics of a typical telescope. We partition each polarization channel into seen contiguous channels with a channelizer circuit that mimics the physiology of the human ear and then terminate each channel on a separate TES bolometer. Fourier Transform Spectroscopy demonstrates that the bands are near the designed locations with total receiver throughputs of 20-30%.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: CMB polarimetry ; high-redshift galaxy cluster photometry ; log-periodic channelizer ; sinuous antenna ; TES-bolometers
Publisher: Institute of Electrical and Electronics Engineers
ISSN: 1051-8223
Last Modified: 04 Jun 2017 04:12

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