| Presentation | 2009-04-23 Study of bandwidth tunable HTS filters using H-shaped waveguides Naoto SEKIYA, Yusuke KOIKE, Hiroyuki HARADA, Shoji KAKIO, Yasuhiko NAKAGAWA, Shigetoshi OHSHIMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have developed a bandwidth tuning method for use in high-temperature superconducting (HTS) microstrip filters. Several H-shaped waveguides are placed between the resonators, and the bandwidth is adjusted by changing the switch states of the waveguides. The effects of using this method were evaluated using a filter composed of 3-pole half-wavelength straight-line resonators with an H-shaped waveguide between each pair and additional electric pads for post-tuning trimming. The filter was designed and fabricated to verify the feasibility of the proposed filter using Duroid substrate before using superconductor. The filter achieves a measured 1.55:1 tunable passband ratio. The measurement results showed that the H-shaped waveguides are effective in tuning the bandwidth. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Bandwidth / Filter / Tunable / Trimming / Cognitive Radio / Superconductor |
| Paper # | SCE2009-6,MW2009-6 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2009/4/16(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) | Study of bandwidth tunable HTS filters using H-shaped waveguides |
| Sub Title (in English) | |
| Keyword(1) | Bandwidth |
| Keyword(2) | Filter |
| Keyword(3) | Tunable |
| Keyword(4) | Trimming |
| Keyword(5) | Cognitive Radio |
| Keyword(6) | Superconductor |
| 1st Author's Name | Naoto SEKIYA |
| 1st Author's Affiliation | Interdisciplinary Graduate School of Medicine and Engineering Faculty of Engineering, University of Yamanashi() |
| 2nd Author's Name | Yusuke KOIKE |
| 2nd Author's Affiliation | Interdisciplinary Graduate School of Medicine and Engineering Faculty of Engineering, University of Yamanashi |
| 3rd Author's Name | Hiroyuki HARADA |
| 3rd Author's Affiliation | Interdisciplinary Graduate School of Medicine and Engineering Faculty of Engineering, University of Yamanashi |
| 4th Author's Name | Shoji KAKIO |
| 4th Author's Affiliation | Interdisciplinary Graduate School of Medicine and Engineering Faculty of Engineering, University of Yamanashi |
| 5th Author's Name | Yasuhiko NAKAGAWA |
| 5th Author's Affiliation | Interdisciplinary Graduate School of Medicine and Engineering Faculty of Engineering, University of Yamanashi |
| 6th Author's Name | Shigetoshi OHSHIMA |
| 6th Author's Affiliation | Faculty of Engineering, Yamagata University |
| Date | 2009-04-23 |
| Paper # | SCE2009-6,MW2009-6 |
| Volume (vol) | vol.109 |
| Number (no) | 14 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |