Design of the focal plane array receiver for the NRO 45-m telescope

Chieko Yamaguchi; Kazuyoshi Sunada; Yoshizo Iizuka; Hiroyuki Iwashita; Takashi Noguchi

doi:10.1117/12.390460

3 July 2000 Design of the focal plane array receiver for the NRO 45-m telescope

Chieko Yamaguchi, Kazuyoshi Sunada, Yoshizo Iizuka, Hiroyuki Iwashita, Takashi Noguchi

Proceedings Volume 4015, Radio Telescopes; (2000) https://doi.org/10.1117/12.390460
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

The design of the new 5 X 5 SIS focal plane array receiver for the 45-m telescope at the Nobeyama Radio Observatory (NRO) is described. It is called BEARS (SIS 25-BEam Array Receiver System). This receiver has 25 elements. It covers the frequency range from 82 to 116 GHz. The array uses SIS junctions mounted in fixed tuned mixer blocks. The mean DSB receiver noise temperature is about 75 K at all the LO frequencies. The standard deviation of the receiver noise temperature is about 20 K. The receiver was installed on the telescope and has been used for observations and measurements since April 1998. The design of the receiver system, the optics and the heat model will be presented in this paper.

Citation Download Citation

Chieko Yamaguchi, Kazuyoshi Sunada, Yoshizo Iizuka, Hiroyuki Iwashita, and Takashi Noguchi "Design of the focal plane array receiver for the NRO 45-m telescope", Proc. SPIE 4015, Radio Telescopes, (3 July 2000); https://doi.org/10.1117/12.390460

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