Argus: a 16-pixel millimeter-wave spectrometer for the Green Bank Telescope

Argus: a 16-pixel millimeter-wave spectrometer for the Green Bank Telescope
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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:
Astronomical Telescopes and Instrumentation
影响因子:
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通讯作者:
R. Reeves
R. Reeves
中科院分区:
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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

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我们报道了Argus的发展,这是一个16像素的光谱仪,它将在85-116千兆赫波段上实现快速天文成像。每个像素包括一个紧凑的外差接收模块,该模块集成了两个InP MMIC低噪声放大器,一个耦合线带通滤波器和一个次谐波肖特基二极管混频器。接收信号由多层高频印刷电路板(包括LO分路器和中频放大器)组成的多芯片MMIC模块来回传输。柔性电路上的微带线用于在温度阶段之间传输信号。光谱仪前端设计为可扩展的,因此阵列设计可以重新配置,以适应未来具有数百像素的仪器。Argus计划于2014年底在Robert C. Byrd Green Bank望远镜投入使用。给出了第一个Argus像素的初步数据。
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: --
作者:
Bischoff C
通讯作者: Bischoff C