| Presentation | 2010-01-13 Design of a Compact UWB Bandpass Filter Using a Microstrip Five-Mode Step-Impedance Resonator Akihito Beppu, Zhewang Ma, Chun-Ping Chen, Tetsuo Anada, Yoshio Kobayashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, an ultra-wideband(UWB)bandpass filter using microstrip five-mode step-impedance resonator is proposed, and its equivalent circuit is analyzed. The ideal Chebyshev-type characteristic function realizable by this filter is obtained, and an efficient design method is developed to determine the equivalent circuit parameters and physical dimensions of the filter. An example filter with a midband frequency of 6.85GHz, a 3dB-FBW of 105%, and passband return loss better than 12dB is designed, and sharp skirt property and ultra-wide passband are realized using only one 5-mode resonator. In order to reduce the passband return loss and suppress higher order spurious resonances, matching lines and hairpin type low-pass filters are added to the UWB filter. As a result, the Federal Communications Commission's indoor limit is met quite well over a very wide frequency range. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | UWB filter / microstrip line / five-mode resonator / Chebyshev response / low-pass filter |
| Paper # | ED2009-174,MW2009-157 |
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| Committee | ED |
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| Conference Date | 2010/1/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of a Compact UWB Bandpass Filter Using a Microstrip Five-Mode Step-Impedance Resonator |
| Sub Title (in English) | |
| Keyword(1) | UWB filter |
| Keyword(2) | microstrip line |
| Keyword(3) | five-mode resonator |
| Keyword(4) | Chebyshev response |
| Keyword(5) | low-pass filter |
| 1st Author's Name | Akihito Beppu |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Saitama University() |
| 2nd Author's Name | Zhewang Ma |
| 2nd Author's Affiliation | Graduate School of Science and Engineering, Saitama University |
| 3rd Author's Name | Chun-Ping Chen |
| 3rd Author's Affiliation | High-Tech Research Center, Kanagawa University |
| 4th Author's Name | Tetsuo Anada |
| 4th Author's Affiliation | High-Tech Research Center, Kanagawa University |
| 5th Author's Name | Yoshio Kobayashi |
| 5th Author's Affiliation | Graduate School of Science and Engineering, Saitama University |
| Date | 2010-01-13 |
| Paper # | ED2009-174,MW2009-157 |
| Volume (vol) | vol.109 |
| Number (no) | 360 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |