Argus: a 16-pixel millimeter-wave spectrometer for the Green Bank Telescope
Argus: a 16-pixel millimeter-wave spectrometer for the Green Bank Telescope
复制标题
Argus:用于绿岸望远镜的 16 像素毫米波光谱仪
DOI:
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
R. Reeves
中科院分区:
文献类型:
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作者:
M. Sieth;K. Devaraj;P. Voll;S. Church;R. Gawande;K. Cleary;A. Readhead;P. Kangaslahti;L. Samoska;T. Gaier;P. Goldsmith;A. Harris;J. Gundersen;D. Frayer;S. White;D. Egan;R. Reeves
We report on the development of Argus, a 16-pixel spectrometer, which will enable fast astronomical imaging over the 85–116 GHz band. Each pixel includes a compact heterodyne receiver module, which integrates two InP MMIC low-noise amplifiers, a coupled-line bandpass filter and a sub-harmonic Schottky diode mixer. The receiver signals are routed to and from the multi-chip MMIC modules with multilayer high frequency printed circuit boards, which includes LO splitters and IF amplifiers. Microstrip lines on flexible circuitry are used to transport signals between temperature stages. The spectrometer frontend is designed to be scalable, so that the array design can be reconfigured for future instruments with hundreds of pixels. Argus is scheduled to be commissioned at the Robert C. Byrd Green Bank Telescope in late 2014. Preliminary data for the first Argus pixels are presented.
DOI:
10.1088/0004-637x/768/1/9
发表时间:
2013
期刊:
The Astrophysical Journal
影响因子:
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作者:
Bischoff C
通讯作者:
Bischoff C