| Presentation | 1999/5/21 Attenuation Poles in a Two-stage Combline BPF Ikuo Awai, Osamu Nagasaki, Kohji Wada, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Attenuation poles are quite effectively utilized in order to improve out-of-band characteristics of a BPF, typically ones in handsets for the mobile communication system. A combline filter, which belongs to the family of distrbuted element filter, on the other hands, shows a low loss property in passband and often takes laminated structure to reduce its dimension. This article chooses a 2-stage combline filter of planar structure including laminated structure, to generally discuss the techniques for creation of attenuation poles. It is elucidated that the frequency and number of attenuation poles are roughly determined by the character of coupling, capacitive or inductive, not to mention some deviations according to coplanar, strip or microstrip. Variety of coupling schemes are analyzed to show the possibility of attenuation poles. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Bandpass filter / Combline structure / Two stage BPF / Planar structure / Attenuation pole |
| Paper # | MW99-27 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 1999/5/21(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) | Attenuation Poles in a Two-stage Combline BPF |
| Sub Title (in English) | |
| Keyword(1) | Bandpass filter |
| Keyword(2) | Combline structure |
| Keyword(3) | Two stage BPF |
| Keyword(4) | Planar structure |
| Keyword(5) | Attenuation pole |
| 1st Author's Name | Ikuo Awai |
| 1st Author's Affiliation | Yamaguchi University, Faculty of Engineering() |
| 2nd Author's Name | Osamu Nagasaki |
| 2nd Author's Affiliation | Yamaguchi University, Faculty of Engineering |
| 3rd Author's Name | Kohji Wada |
| 3rd Author's Affiliation | Yamaguchi University, Faculty of Engineering |
| Date | 1999/5/21 |
| Paper # | MW99-27 |
| Volume (vol) | vol.99 |
| Number (no) | 78 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |