SIS mixer design for a broadband millimeter spectrometer suitable for rapid line surveys and redshift determinations

F. Rice*, M. Sumner, J. Zmuidzinas, Shu-I Hu, H. LeDuc, A. Harris, D. Miller

*此作品的通信作者

研究成果: Conference article同行評審

12 引文 斯高帕斯(Scopus)

摘要

We present some detail of the waveguide probe and SIS mixer chip designs for a low-noise 180-300 GHz double-sideband receiver with an instantaneous RF bandwidth of 24 GHz. The receiver's single SIS junction is excited by a broadband, fixed-tuned waveguide probe on a silicon substrate. The IF output is coupled to a 6-18 GHz MMIC low-noise preamplifier. Following further amplification, the output is processed by an array of 4 GHz, 128-channel analog autocorrelation spectrometers (WASP II). The single-sideband receiver noise temperature goal of 70 Kelvin will provide a prototype instrument capable of rapid line surveys and of relatively efficient carbon monoxide (CO) emission line searches of distant, dusty galaxies. The latter application's goal is to determine redshifts by measuring the frequencies of CO line emissions from the star-forming regions dominating the submillimeter brightness of these galaxies. Construction of the receiver has begun; lab testing should begin in the fall. Demonstration of the receiver on the Caltech Submillimeter Observatory (CSO) telescope should begin in spring 2003.

原文English
頁(從 - 到)301-311
頁數11
期刊Proceedings of SPIE - The International Society for Optical Engineering
4855
DOIs
出版狀態Published - 1 12月 2002
事件Millimeter and Submillimeter Detectors for Astronomy - Waikaloa, HI, United States
持續時間: 25 8月 200228 8月 2002

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