Novel multifold finite-ground-width CPW quarter-wavelength filters with attenuation poles
In: IEEE transactions on microwave theory and techniques, Jg. 55 (2007), Heft 1, S. 128-136
Online
academicJournal
- print, 18 ref
Zugriff:
This paper proposes a novel multifold finite-ground-width coplanar waveguide (CPW) A/4 resonator filter that has the capability of realizing attenuation poles by cross coupling of nonadjacent resonators. The newly proposed multifold structures not only greatly shrink the length of a resonator, but also provide a convenient way to implement cross coupling in a filter. The proposed multifold finite-ground-width CPW resonators can have much stronger coupling than that of spiraling and meandering layouts, and any number of folds is possible. Two combline filters are designed and measured with twofold and threefold A/4 finite-ground-width CPW resonators. A trisection and a quadruplet generalized Chebyshev filter formed by cross couplings between nonadjacent resonators have been implemented by modifying the layout of the resonator. These filters are smaller in size and have the capability of controlling attenuation poles.
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Novel multifold finite-ground-width CPW quarter-wavelength filters with attenuation poles
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Autor/in / Beteiligte Person: | CHEN, Chin-Hsuing ; LIAO, Ching-Ku ; CHANG, Chi-Yang |
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Zeitschrift: | IEEE transactions on microwave theory and techniques, Jg. 55 (2007), Heft 1, S. 128-136 |
Veröffentlichung: | New York, NY: Institute of Electrical and Electronics Engineers, 2007 |
Medientyp: | academicJournal |
Umfang: | print, 18 ref |
ISSN: | 0018-9480 (print) |
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