Presentation 2005-09-12
Fundamental circuit construction and CAD simulation of superconducting reaction type transmitting filter aiming at mobile base station application
Shunichi FUTATSUMORI, Takashi HIKAGE, Toshio NOJIMA,
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Abstract(in English) HTS (High-Temperature Superconductor) microwave devices applied to transmission systems have problems in terms of their power handling capability caused by surface-current concentrations on the devices. Although low power applications such as receiving filters for mobile base stations are researched and developed, HTS filters aimed at transmitters do not have same the performance as receiving filters. Reaction type filters, which do not resonate by high-power fundamental signals, are proposed. The most serious problem of the filter is currents induced on HTS resonators by fundamental signals. Some amount of the current exceeds HTS critical current density. In this report, new resonator structures consisting of the split type open-ring resonator are proposed and confirm the effect of maximum current density reduction using full-wave EM simulators. Furthermore, fundamental circuit design and feasibility of the filter are discussed.
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Keyword(in English) reaction type filter / High-Temperature Superconductor / power handling capability / open-ring resonator
Paper # MW2005-72
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Committee MW
Conference Date 2005/9/5(1days)
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Language JPN
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Title (in English) Fundamental circuit construction and CAD simulation of superconducting reaction type transmitting filter aiming at mobile base station application
Sub Title (in English)
Keyword(1) reaction type filter
Keyword(2) High-Temperature Superconductor
Keyword(3) power handling capability
Keyword(4) open-ring resonator
1st Author's Name Shunichi FUTATSUMORI
1st Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University()
2nd Author's Name Takashi HIKAGE
2nd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
3rd Author's Name Toshio NOJIMA
3rd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
Date 2005-09-12
Paper # MW2005-72
Volume (vol) vol.105
Number (no) 271
Page pp.pp.-
#Pages 6
Date of Issue