1.5-GHz Band-Pass Microstrip Filters Fabricated Using EuBaCuO Superconducting Films
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概要
- 論文の詳細を見る
This letter reports the properties of 1.5-GHz band-pass microstrip filters fabricated using EuBacuO superconducting films. Although 3- and 4-pole filters constructed using a superconductor and a silver ground plane exhibited good reproducibility and very low insertion loss of 3〜5 dB at 70 K, in comparison with Cu filters with 16〜27dB loss at 77 K, the insertion loss was almost constant at temperatures below 70 K. In contrast, the insertion loss in the 4-pole filter with a superconductive ground plane was 1.2 dB at 70 K and 0.6 dB at 28 K. The center frequency and bandwidth at -3 dB were, respectively, 1.45 GHz and 1.4% at temperatures below 70 K.
- 社団法人応用物理学会の論文
- 1993-02-15
著者
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SUZUKI Naobumi
NTT Interdisciplinary Research Laboratories
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Suzuki Nobuhiro
The Faculty Of Engineering Tokyo Institute Of Technology
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Suzuki N
Corporate Research & Development Center Toshiba Corporation
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Nagai Yasuhiro
Ntt Information Hardware System Laboratories
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Nagai Yasuhiro
Musashino Electrical Communication Laboratory Nippon Telegraph And Telephone Public Corporation
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Nagai Yasuhiro
Ntt Electrical Communication Laboratories
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Michikami O
Iwate Univ. Morioka‐shi Jpn
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Suzuki N
Hitachi Ltd. Tokyo Jpn
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ITOH Keiichiro
NTT Interdisciplinary Research Laboratories
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NAGAI Yasuhiro
University of California
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MICHIKAMI Osamu
NTT Interdisciplinary Research Laboratories
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