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High Q or High Effective Permittivity Artificial Dielectric Resonator in a Waveguide

Hiroshi KUBO, Tsuyoshi MUKAI, Atsushi SANADA

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Summary :

New strip arrangements for high Q or high effective permittivity are proposed for artificial dielectric resonators in a waveguide. The quality factor and the effective permittivity are discussed by changing strip arrangement composing the artificial dielectric. Concentrating strips from both sides to the middle in the waveguide leads to increase of unloaded Q. The value becomes high to several thousands by decreasing dielectric loss of the material. Interdigital strip arrangement makes the effective permittivity very high. A resonator of the strip arrangement has effective permittivity over 800 and unloaded Q over 1000. Moreover the resonator exhibits a good spurious characteristic with no unnecessary resonant mode throughout several harmonics range.

Publication
IEICE TRANSACTIONS on Electronics Vol.E88-C No.7 pp.1412-1419
Publication Date
2005/07/01
Publicized
Online ISSN
DOI
10.1093/ietele/e88-c.7.1412
Type of Manuscript
Special Section PAPER (Special Section on Recent Technologies of Microwave and Millimeter-Wave Devices Focusing on Miniaturization and Advancement in Performance with Their Applications)
Category
Resonators & Filters

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