Development of SRAO 3MM SIS Receiver

Authors: Lee J-W.¹; Han S-T.²; Byun D-Y.¹; Koo B-C.¹; Park Y-S.¹

Source: International Journal of Infrared and Millimeter Waves, Volume 23, Number 1, January 2002 , pp. 47-59(13)

Publisher: Springer

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Abstract:

We have developed a 3 mm band receiver for SRAO. The receiver employs an Nb-based SIS junction in the mixer and operates at 85–115 GHz with single polarization. The receiver noise temperature is 40–50 K in DSB. It is equipped with an MPI-type filter for single-side band observations. We present the design, construction, and test results for individual components of the receiver optics, heterodyne system, and cryogenics. The receiver has been installed on the 6 m SRAO telescope and tested toward astronomical sources. The beam-measurement experiment suggests that the edge taper is smaller than the designed 12 dB.

Keywords: mm-wave receiver; receiver optics; radio astronomy

Language: English

Document Type: Regular paper

Affiliations: 1: Astronomy Program, School of Earth and Environmental Sciences, Seoul National University, Seoul, Korea 2: Taeduk Radio Astronomy Observatory, Taejon, Korea

Publication date: 2002-01-01