| Presentation | 2005-09-13 Synthesis Theory of Bandpass Filters Using Composite Resonators to Obtain Transmission Zeros Zhewang Ma, Hitoshi Miki, Yoshio Kobayashi, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A synthesis theory of bandpass filters (BPFs) using composite resonators is proposed. Instead of using cross-couplings between non-adjacent resonators, composite resonators are employed to produce transmission zeros in order to get sharp attenuations of the filter. The filter has as many transmission zeros in both its lower and upper stopbands as the number of resonators it used. The theory is developed based on the well-know lumped-element equivalent circuit of a BPF. Therefore, the classical design equations remain valid provided a few new formulas are supplemented. An easy realization method of the filter using microstrip lines is described, and 2-degree and 3-degree example filters with modified Chebyshev-Chebyshev response are designed. The measured filter characteristics agree excellently with the theoretical predictions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Composite resonators / Transmission zeros / J-inverters / Microstrip line |
| Paper # | MW2005-81 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2005/9/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Microwaves (MW) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Synthesis Theory of Bandpass Filters Using Composite Resonators to Obtain Transmission Zeros |
| Sub Title (in English) | |
| Keyword(1) | Composite resonators |
| Keyword(2) | Transmission zeros |
| Keyword(3) | J-inverters |
| Keyword(4) | Microstrip line |
| 1st Author's Name | Zhewang Ma |
| 1st Author's Affiliation | Department of Electrical and Electronic Systems, Saitama University() |
| 2nd Author's Name | Hitoshi Miki |
| 2nd Author's Affiliation | Department of Electrical and Electronic Systems, Saitama University |
| 3rd Author's Name | Yoshio Kobayashi |
| 3rd Author's Affiliation | Department of Electrical and Electronic Systems, Saitama University |
| Date | 2005-09-13 |
| Paper # | MW2005-81 |
| Volume (vol) | vol.105 |
| Number (no) | 272 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |