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arxiv: 1003.3347 · v1 · pith:FRLJQOQCnew · submitted 2010-03-17 · 🌌 astro-ph.CO · astro-ph.IM

AMiBA Wideband Analog Correlator

Chao-Te Li (1) , Derek Y. Kubo (1) , Warwick Wilson (2) , Kai-Yang Lin (1 , 3) , Ming-Tang Chen (1) , P. T. P. Ho (1 , 4)
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Chung-Cheng Chen (1) Chih-Chiang Han (1) Peter Oshiro (1) Pierre Martin-Cocher (1) Chia-Hao Chang (1) Shu-Hao Chang (1) Pablo Altamirano (1) Homin Jiang (1) Tzi-Dar Chiueh (3) Chun-Hsien Lien (3) Huei Wang (3) Ray-Ming Wei (3) Chia-Hsiang Yang (3) Jeffrey B. Peterson (5) Su-Wei Chang (1) Yau-De Huang (1) Yuh-Jing Hwang (1) Michael Kesteven (2) Patrick Koch (1) Guo-Chin Liu (1 6) Hiroaki Nishioka (1) Keiichi Umetsu (1) Tashun Wei (1) Jiun-Huei Proty Wu (3) ((1) ASIAA (2) ATNF (3) National Taiwan University (4) CfA (5) Carnegie-Mellon University (6) Tamkang University)
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classification 🌌 astro-ph.CO astro-ph.IM
keywords analogbackgroundbandwidthbeencorrelatorlargemicrowavesensitivity
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A wideband analog correlator has been constructed for the Yuan-Tseh Lee Array for Microwave Background Anisotropy. Lag correlators using analog multipliers provide large bandwidth and moderate frequency resolution. Broadband IF distribution, backend signal processing and control are described. Operating conditions for optimum sensitivity and linearity are discussed. From observations, a large effective bandwidth of around 10 GHz has been shown to provide sufficient sensitivity for detecting cosmic microwave background variations.

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