Comb-Line Filter with Coupling Capacitor in Ground Plane
A comb-line filter with a coupling capacitor in the ground plane is proposed. The filter consists of two quarter-wavelength microstrip resonators. A coupling capacitor is inserted into the ground plane in order to build strong coupling locally along the resonators. The filtering characteristics are...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Active and Passive Electronic Components |
| Online Access: | http://dx.doi.org/10.1155/2011/919240 |
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| _version_ | 1849304685548142592 |
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| author | Toshiaki Kitamura |
| author_facet | Toshiaki Kitamura |
| author_sort | Toshiaki Kitamura |
| collection | DOAJ |
| description | A comb-line filter with a coupling capacitor in the ground plane is proposed. The filter consists of two quarter-wavelength microstrip resonators. A coupling capacitor is inserted into the ground plane in order to build strong coupling locally along the resonators. The filtering characteristics are investigated through numerical simulations as well as experiments. Filtering characteristics that have attenuation poles at both sides of the passband are obtained. The input susceptances of even and odd modes and coupling coefficients are discussed. The filters using stepped impedance resonators (SIRs) are also discussed, and the effects of the coupling capacitor for an SIR structure are shown. |
| format | Article |
| id | doaj-art-3a05ef8eba8b4d16bab6e4a9f37723a1 |
| institution | Kabale University |
| issn | 0882-7516 1563-5031 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Active and Passive Electronic Components |
| spelling | doaj-art-3a05ef8eba8b4d16bab6e4a9f37723a12025-08-20T03:55:40ZengWileyActive and Passive Electronic Components0882-75161563-50312011-01-01201110.1155/2011/919240919240Comb-Line Filter with Coupling Capacitor in Ground PlaneToshiaki Kitamura0Faculty of Engineering Science, Kansai University, Suita, Osaka 564-8680, JapanA comb-line filter with a coupling capacitor in the ground plane is proposed. The filter consists of two quarter-wavelength microstrip resonators. A coupling capacitor is inserted into the ground plane in order to build strong coupling locally along the resonators. The filtering characteristics are investigated through numerical simulations as well as experiments. Filtering characteristics that have attenuation poles at both sides of the passband are obtained. The input susceptances of even and odd modes and coupling coefficients are discussed. The filters using stepped impedance resonators (SIRs) are also discussed, and the effects of the coupling capacitor for an SIR structure are shown.http://dx.doi.org/10.1155/2011/919240 |
| spellingShingle | Toshiaki Kitamura Comb-Line Filter with Coupling Capacitor in Ground Plane Active and Passive Electronic Components |
| title | Comb-Line Filter with Coupling Capacitor in Ground Plane |
| title_full | Comb-Line Filter with Coupling Capacitor in Ground Plane |
| title_fullStr | Comb-Line Filter with Coupling Capacitor in Ground Plane |
| title_full_unstemmed | Comb-Line Filter with Coupling Capacitor in Ground Plane |
| title_short | Comb-Line Filter with Coupling Capacitor in Ground Plane |
| title_sort | comb line filter with coupling capacitor in ground plane |
| url | http://dx.doi.org/10.1155/2011/919240 |
| work_keys_str_mv | AT toshiakikitamura comblinefilterwithcouplingcapacitoringroundplane |