| Presentation | 1997/4/23 Development of Superconducting Miniaturized Coplanar Waveguide Filters Manabu Kai, Koji Tsubone, Keiji Yoshida, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The microwave filters essential to mobile and satellite communications are required to have low insertion losses, narrow bands and sharp cutoff properties. We take account that the coplanar waveguide is easy to be fabricated and able to be scaled down, so we suggest that the bandpass filters can be realized by a miniaturized high-temperature superconducting coplanar waveguide. Design method that J-inverters are replaced with gaps in the inner conductor is established, and every parameter needed for design is obtained from measurements of gap S-parameter. Also, we examine the dependence of Q factor on insertion losses and intermodulation distortion of the filters. Lastly, we design a 3-section filter which has the center frequency of 10GHz, the fractional bandwidth of 0.5% and the ripple of 1dB, and simulate both straight and meander coplanar waveguides. As a result, the wave shape close to the ideal transmission curve is obtained. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | mobile communication / microwave filter / coplanar waveguide / high-temperature superconductor / insertion losses |
| Paper # | SCE97-7,MW97-7 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 1997/4/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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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) | Development of Superconducting Miniaturized Coplanar Waveguide Filters |
| Sub Title (in English) | |
| Keyword(1) | mobile communication |
| Keyword(2) | microwave filter |
| Keyword(3) | coplanar waveguide |
| Keyword(4) | high-temperature superconductor |
| Keyword(5) | insertion losses |
| 1st Author's Name | Manabu Kai |
| 1st Author's Affiliation | Department of Electronic Device Engineering, Graduate School of Information Science and Electrical Engineering, Kyushu University() |
| 2nd Author's Name | Koji Tsubone |
| 2nd Author's Affiliation | Department of Electronic Device Engineering, Graduate School of Information Science and Electrical Engineering, Kyushu University |
| 3rd Author's Name | Keiji Yoshida |
| 3rd Author's Affiliation | Department of Electronic Device Engineering, Graduate School of Information Science and Electrical Engineering, Kyushu University |
| Date | 1997/4/23 |
| Paper # | SCE97-7,MW97-7 |
| Volume (vol) | vol.97 |
| Number (no) | 19 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |