Study on multiband heterodyne receiver technologies aiming at octave instantanous bandwidth
Project/Area Number |
15K18057
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Electron device/Electronic equipment
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Research Institution | National Astronomical Observatory of Japan |
Principal Investigator |
Kojima Takafumi 国立天文台, 先端技術センター, 助教 (00617417)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | 低雑音 / ヘテロダイン / 超伝導ミキサ / 周波数マルチプレクサ / マルチバンド / 広帯域 / SISミキサ / 導波管 / サブミリ波 / マルチバンド受信機 / 広帯域IF受信機 / 周波数分波器 |
Outline of Final Research Achievements |
We have successfully developed a radio frequency (RF) filter and low-noise heterodyne mixer-preamplifier modules for a multiband receiver at 400 GHz band. The RF filter adopted a hybrid-coupled type of the multiplexer to divide the frequency range of 405-480 GHz into 3 bands. The measurement result showed excellent agreement with the simulation. The heterodyne module integrates a superconductor-insulator-superconductor (SIS) mixer with a cryogenic low-noise pre-amplifier. The measurement demonstrates 3 times wider bandwidth than the one in current existing receivers maintaining low-noise temperature. By combining the multiplexer and the modules, we demonstrated noise temperature of 200 K for a 3-band receiver. The result indicates that this approach is promising for future low-noise and wideband receiver applications.
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Report
(4 results)
Research Products
(19 results)
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[Presentation] Superconducting Receivers for ALMA Radio Telescope and Future Development2016
Author(s)
T. Kojima, A. Gonzalez, M. Kroug, Y. Fujii, K. Kaneko, W. Shan, S. Asayama, Y. Uzawa, K. Makise, H. Terai, Z. Wang
Organizer
29th International Symposium on Superconductivity
Place of Presentation
東京国際フォーラム, 東京, 千代田区
Year and Date
2016-12-13
Related Report
Int'l Joint Research / Invited
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