| Presentation | 2009-03-06 SIR type band pass filter with wide suppression band width Somboon THEERAWISITPONG, Masato OGUE, Fumiya OKAWA, Toshitatsu SUZUKI, Toshihisa KAMEI, Noboru MORITA, Yozo UTSUMI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We developed a bandpass filter using folded stepped-impedance resonators where center frequency is 1.95GHz with 60MHz bandwidth for WCDMA-FDD uplink band in Japan cellular system. A new even-mode harmonics suppression technique has been proposed in order to accomplish wide harmonics suppressed band having high insertion loss. 3-step Tchebycheff bandpass filters are designed and fabricated. The experimental results on pass band and harmonics suppressed band is satisfied as compared with simulation. The insertion loss of suppressed band greater than 40dB from 2.3 to 9.1GHz and unloaded quality factor is about 320. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microstrip Filter / Stepped-Impedance Resonator / Harmonic Suppression |
| Paper # | MW2008-189 |
| Date of Issue |
| Conference Information | |
| Committee | MW |
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| Conference Date | 2009/2/27(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 | Microwaves (MW) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | SIR type band pass filter with wide suppression band width |
| Sub Title (in English) | |
| Keyword(1) | Microstrip Filter |
| Keyword(2) | Stepped-Impedance Resonator |
| Keyword(3) | Harmonic Suppression |
| 1st Author's Name | Somboon THEERAWISITPONG |
| 1st Author's Affiliation | Department of Electrical and Electronic Engineering, Nippon Institute of Technology() |
| 2nd Author's Name | Masato OGUE |
| 2nd Author's Affiliation | Department of Communications Engineering, National Defence Academy |
| 3rd Author's Name | Fumiya OKAWA |
| 3rd Author's Affiliation | Department of Communications Engineering, National Defence Academy |
| 4th Author's Name | Toshitatsu SUZUKI |
| 4th Author's Affiliation | Department of Electrical and Electronic Engineering, Nippon Institute of Technology |
| 5th Author's Name | Toshihisa KAMEI |
| 5th Author's Affiliation | Department of Communications Engineering, National Defence Academy |
| 6th Author's Name | Noboru MORITA |
| 6th Author's Affiliation | Department of Electrical and Electronic Engineering, Nippon Institute of Technology |
| 7th Author's Name | Yozo UTSUMI |
| 7th Author's Affiliation | Department of Communications Engineering, National Defence Academy |
| Date | 2009-03-06 |
| Paper # | MW2008-189 |
| Volume (vol) | vol.108 |
| Number (no) | 452 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |