Spaceborne 640-GHz SIS receiver based on a 4-K mechanical cooler

Yasunori Fujii; Ken'ichi Kikuchi; Junji Inatani; Yoshihisa Irimajiri; Masumichi Seta; Satoshi Ochiai; Takeshi Manabe; Harunobu Masuko; Takeshi Noguchi; Katsuhiro Narasaki; Shoji Tsunematsu; Toshiya Shirota

doi:10.1117/12.393989

28 July 2000 Spaceborne 640-GHz SIS receiver based on a 4-K mechanical cooler

Yasunori Fujii, Ken'ichi Kikuchi, Junji Inatani, Yoshihisa Irimajiri, Masumichi Seta, Satoshi Ochiai, Takeshi Manabe, Harunobu Masuko, Takeshi Noguchi, Katsuhiro Narasaki, Shoji Tsunematsu, Toshiya Shirota

Author Affiliations +

Proceedings Volume 4013, UV, Optical, and IR Space Telescopes and Instruments; (2000) https://doi.org/10.1117/12.393989
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

An engineering model has been built for a space-borne 640- GHz SIS receiver. It is the key component of Superconducting Submillimeter-Wave Limb-Emission Sounder, which is to be operated aboard the Japanese Experiment Module of the International Space Station in 2005. The receiver includes two Superconductor-Insulator-Superconductor (SIS) mixers cooled at 4.5 K, as well as four High-Electron-Mobility- Transistor (HEMT) amplifiers, two of which cooled at 20 K and the other two at 100 K. These components are integrated in a compact cryostat with two-stage Stirling and Joule- Thomson refrigerators. The receiver components has been successfully cooled and the cryostat has survived random vibration tests. The 640-GHz SIS mixer, which uses a pair of Nb/AlOx/Nb junctions connected in parallel, is built so that a broad RF matching be achieved without mechanical tuners. It is followed by cooled low noise HEMT amplifiers with a noise temperature of less than 17 K. The total receiver noise temperature has been measured around 180 - 220 K over the bandwidth of 5.5 GHz.

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Yasunori Fujii, Ken'ichi Kikuchi, Junji Inatani, Yoshihisa Irimajiri, Masumichi Seta, Satoshi Ochiai, Takeshi Manabe, Harunobu Masuko, Takeshi Noguchi, Katsuhiro Narasaki, Shoji Tsunematsu, and Toshiya Shirota "Spaceborne 640-GHz SIS receiver based on a 4-K mechanical cooler", Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); https://doi.org/10.1117/12.393989

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