Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2005-08-09
2005-08-09
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
C333S239000, C333S248000, C333S113000
Reexamination Certificate
active
06927653
ABSTRACT:
A cutoff waveguide path is provided in a part of a dielectric waveguide comprising a pair of main conductive layers formed on an upper and a lower surfaces of a dielectric and groups of conductive vias arranged in the direction of signal transmission with a space of a distance less than ½ of a signal wavelength between the conductive vias, and provided in the cutoff waveguide path is a resonator having dielectric vias formed of a dielectric having a higher dielectric constant than that of a dielectric forming the dielectric waveguide. With this construction, a dielectric waveguide type filter easily designed and manufactured can be obtained.
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Kitazawa Kenji
Uchimura Hiroshi
Glenn Kimberly
Hogan & Hartson LLP
Kyocera Corporation
Pascal Robert
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