| Presentation | 2003/1/22 W-band SIS mixer with 5-7GHz IF Shinichiro ASAYAMA, Takashi NOGUCHI, Hideo OGAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper we present the design and performance of a fixed tuned W-band SIS mixer with a wide band IF (5-7 GHz). We designed the waveguide-to-stripline transition of the SIS mixer using a numerical analysis called "lumped-gap-source port method" (HFSS, Ansoft Corporation). The measured receiver noise temperature is less than 25 K in the frequency range of 95-115 GHz, and minimum value of around 19 K is achieved. The mixer noise temperature is determined to be about 8.5K which is about two times as large as the hω/κ_B. In spite of such high IF frequency (f_0=6 GHz), the performance of the SIS receiver is comparable or even superior to those of the best mechanically tuned waveguide SIS receiver with low IF frequency (f_0=1.5 GHz). Accordingly, this numerical method makes it possible to design easily the waveguide-to-stripline transition without scale model measurements. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | SIS junction / SIS mixer / embedding impedance / noise temperature / waveguide mixer / fixed tuned |
| Paper # | SCE2002-35 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2003/1/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | W-band SIS mixer with 5-7GHz IF |
| Sub Title (in English) | |
| Keyword(1) | SIS junction |
| Keyword(2) | SIS mixer |
| Keyword(3) | embedding impedance |
| Keyword(4) | noise temperature |
| Keyword(5) | waveguide mixer |
| Keyword(6) | fixed tuned |
| 1st Author's Name | Shinichiro ASAYAMA |
| 1st Author's Affiliation | Department of Earth and Life Sciences,College of Integrated Arts and Sciences,Osaka Prefecture University:Nobeyama Radio Obsevatry() |
| 2nd Author's Name | Takashi NOGUCHI |
| 2nd Author's Affiliation | Nobeyama Radio Obsevatry |
| 3rd Author's Name | Hideo OGAWA |
| 3rd Author's Affiliation | Department of Earth and Life Sciences,College of Integrated Arts and Sciences,Osaka Prefecture University |
| Date | 2003/1/22 |
| Paper # | SCE2002-35 |
| Volume (vol) | vol.102 |
| Number (no) | 612 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |