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| Presentation | 2013-05-31 13:15 Improvement on Stopband Property of Compact Waveguide Filters with Multiple Transmission Zeros Using Hybrid Resonance of Cutoff Waveguide and Planar Resonator Takaaki Matsumoto, Masataka Ohira, Zhewang Ma (Saitama Univ.)  MW2013-21 Link to ES Tech. Rep. Archives: MW2013-21 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The waveguide bandpass filter using planar resonators can generate multiple transmission zeros at stopbands without using any cross coupling structures. However, there is a problem that bandwidth of upper stopband is narrow owing to spurious resonances of the planar resonators. To improve the stopband property, this paper proposes a compact cutoff waveguide filter introducing a new resonance mechanism. The proposed waveguide filter is simply constructed by successive arrangement of planar resonators in a cutoff waveguide, but the suppression of spurious resonances as well as the generation of multiple transmission zeros can be realized by the combination of planar anti-resonant circuits and inductive elements of cutoff waveguides. Furthermore, a high attenuation characteristic at the stopbands can be easily achieved by the cutoff behavior of the waveguide. As an example, we have designed two cutoff waveguide filters at the X band, proving the effectiveness of the proposed waveguide filter. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | cutoff waveguide / waveguide filter / planar resonator / transmission zeros / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 70, MW2013-21, pp. 65-70, May 2013. | |
| Paper # | MW2013-21 | |
| Date of Issue | 2013-05-23 (MW) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
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| Download PDF | MW2013-21 Link to ES Tech. Rep. Archives: MW2013-21 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2013-05-30 - 2013-05-31 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ryukoku Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2013-05-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement on Stopband Property of Compact Waveguide Filters with Multiple Transmission Zeros Using Hybrid Resonance of Cutoff Waveguide and Planar Resonator |
| Sub Title (in English) | |
| Keyword(1) | cutoff waveguide |
| Keyword(2) | waveguide filter |
| Keyword(3) | planar resonator |
| Keyword(4) | transmission zeros |
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| Keyword(6) | |
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| 1st Author's Name | Takaaki Matsumoto |
| 1st Author's Affiliation | Saitama University (Saitama Univ.) |
| 2nd Author's Name | Masataka Ohira |
| 2nd Author's Affiliation | Saitama University (Saitama Univ.) |
| 3rd Author's Name | Zhewang Ma |
| 3rd Author's Affiliation | Saitama University (Saitama Univ.) |
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| Speaker | Author-2 |
| Date Time | 2013-05-31 13:15:00 |
| Presentation Time | 30 minutes |
| Registration for | MW |
| Paper # | MW2013-21 |
| Volume (vol) | vol.113 |
| Number (no) | no.70 |
| Page | pp.65-70 |
| #Pages | 6 |
| Date of Issue | 2013-05-23 (MW) |
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