| Presentation | 2007-04-27 A 5GHz High-Temperature Superconducting reaction-type transmitting filter to suppress adjacent noises Shunichi FUTATSUMORI, Takashi HIKAGE, Toshio NOJIMA, Akihiko AKASEGAWA, Teru NAKANISHI, Kazunori YAMANAKA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A 5GHz High-Temperature Superconducting reaction-type transmitting filter (HTS-RTF) to suppress adjacent channel noise is newly proposed. Since reaction-type resonators do not resonate with high-power fundamental signals, an HTS-RTF enables both high-power handling capability and sharp cutoff characteristics compared to existing planar-type HTS transmitting filters. For practical applications in a 5 GHz band, however, it is required for resonators to achieve high-unloaded Q-factors and low radiations as well as low surface current densities in passband. Firstly, novel split open-ring resonators, which reduce maximum current densities while maintaining high-unloaded Q-factors, are proposed. The measured resonator shows unloaded Q-factor of 68,000 at 5 GHz and third intermodulation-distortion (IMD3) of -82 dBc at 30 dBm input power. Secondly, to investigate the feasibility of an HTS-RTF, a 5 GHz three-pole HTS-RTF with a fractional bandwidth of 0.03% is designed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Reaction-type filter / High-Temperature Superconductor / Power-handling capability / Split open-ring resonator |
| Paper # | SCE2007-10,MW2007-10 |
| Date of Issue |
| Conference Information | |
| Committee | SCE |
|---|---|
| Conference Date | 2007/4/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A 5GHz High-Temperature Superconducting reaction-type transmitting filter to suppress adjacent noises |
| Sub Title (in English) | |
| Keyword(1) | Reaction-type filter |
| Keyword(2) | High-Temperature Superconductor |
| Keyword(3) | Power-handling capability |
| Keyword(4) | Split 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 |
| 4th Author's Name | Akihiko AKASEGAWA |
| 4th Author's Affiliation | Fujitsu Limited |
| 5th Author's Name | Teru NAKANISHI |
| 5th Author's Affiliation | Fujitsu Limited |
| 6th Author's Name | Kazunori YAMANAKA |
| 6th Author's Affiliation | Fujitsu Limited |
| Date | 2007-04-27 |
| Paper # | SCE2007-10,MW2007-10 |
| Volume (vol) | vol.107 |
| Number (no) | 27 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |