Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1992-01-21
1993-05-04
Pascal, Robert J.
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333222, H01P 1205
Patent
active
052085660
ABSTRACT:
A dielectric filter construction having at least two resonating cavities extending longitudinally through a block of dielectric material. At least one of the resonating cavities is of a cross-sectional area which is elongated in a transverse direction, and at least one notch is formed to extend longitudinally along at least one of the surfaces of the block of dielectric material between adjacent ones of the resonating cavities. By appropriate selection of the amount of elongation of the cross-section of the resonating cavity, and the location and dimension of the notch formed along the surface of the block, the component values of the component elements comprising the filter may be selected over an increased range without altering the physical size of the filter.
REFERENCES:
patent: 4431977 (1984-02-01), Sokola et al.
patent: 4464640 (1984-08-01), Nishikawa et al.
patent: 4673902 (1987-06-01), Takeda et al.
patent: 4733208 (1988-03-01), Ishikawa et al.
patent: 4742562 (1988-05-01), Kommrusch
patent: 4890079 (1989-12-01), Sasaki
patent: 5109207 (1992-04-01), Aizawa et al.
Agahi-Kesheh Darioush
Kenoun Robert
Ham Seung
Kelly Robert H.
Motorola Inc.
Pascal Robert J.
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