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Cryogenic receiver front-end with sharp skirt characteristics

sust6_5_S53(掲載ファイル).pdf881.93 kBPDF見る/開く

タイトル: Cryogenic receiver front-end with sharp skirt characteristics
著者: Narahashi, S. 著作を一覧する
Satoh, K. 著作を一覧する
Kawai, K. 著作を一覧する
Koizumi, D. 著作を一覧する
Nojima, T. 著作を一覧する
キーワード: PHYSICS
発行日: 2006年 5月
出版者: IOP Publishing
誌名: Superconductor Science and Technology
巻: 19
号: 5
開始ページ: S416
終了ページ: S422
出版社 DOI: 10.1088/0953-2048/19/5/S53
抄録: This paper presents an experimental cryogenic receiver front-end (CRFE) with sharp skirt characteristics for mobile base stations. The CRFE comprises a high-temperature superconducting filter, a cryogenic low-noise amplifier, and a highly reliable cryostat that is very compact. The major characteristics of the proposed CRFE measured at 70 K are a centre frequency of 1.95 GHz, passband width of 20 MHz, sharp selectivity of 20 dB/100 kHz, 1.4 dB ripple, 31.3 dB average passband gain, and average passband equivalent noise temperature of 47.9 K. The CRFE weighs 19 kg and occupies 35 l. Random failure of the cryostat is also evaluated by a continuous operation test using four identical ones simultaneously. The cryostat used in the CRFE has a high reliability level of over five years of continuous maintenance-free operation.
Rights: Copyright © Institute of Physics and IOP Publishing Limited 2006.
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 野島 俊雄


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