Sinuous-Antenna coupled TES bolometers for Cosmic Microwave Background Polarimetry

被引：8
|
作者：
O'Brient, Roger [1 ]
Ade, Peter
Arnold, Kam [1 ]
Edwards, Jennifer
Engargiola, Greg
Holzapfel, William [1 ]
Lee, Adrian T. [1 ]
Meng, Xiao-fan
Myers, Michael [1 ]
Rebeiz, Gabriel
Richards, Paul [1 ]
Spieler, Helmuth
Suzuki, Aritoki [1 ]
Tran, Huan T. [1 ]
机构：
[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
来源：
LOW TEMPERATURE DETECTORS LTD 13 | 2009年 / 1185卷
关键词：
Cosmic Microwave Background Polarimetry; Antenna-Coupled TES Bolometer; Sinuous Antenna; log-periodic antenna;
D O I：
10.1063/1.3292389
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We are developing antenna-coupled TES bolometers for CMB polarimetry that receive both linear polarizations over nearly two octaves of bandwidth. This ultra-wide bandwidth is achieved with a novel adaptation of the sinuous antenna that integrates microstrip feed-lines onto the arms of the antenna and uses a contacting extended hemispherical lens to focus the beam. It is challenging to achieve desirable antenna performance over such a wide band and our version of the sinuous antenna offers a unique solution. We have integrated this antenna with TES-bolometers and report on a series of optical tests that demonstrate the antenna beams's high symmetry, cross-polarization rejection, gain, and optical efficiency over the operating band.
引用
收藏
页码：502 / +
页数：2
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