Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1993-04-26
1994-09-20
Ham, Seungsook
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333205, H01P 1203
Patent
active
053493141
ABSTRACT:
A stripline filter device including two or more dielectric substrate assemblies each having a pair of superimposed dielectric substrates between which at least one resonator conductor is disposed, wherein the dielectric substrate assemblies are stacked with an intermediate dielectric layer being sandwiched between the adjacent substrate assemblies so as to couple the resonator conductors in a direction perpendicular to the plane of each substrate, and by suitably setting the material and/or the thickness of each intermediate dielectric layer the coupling quantity between the resonators can be adjusted to obtain a desired frequency bandwidth.
REFERENCES:
patent: 4157517 (1979-06-01), Kneisel et al.
patent: 4701727 (1987-10-01), Wong
Ito Kenji
Shimizu Hiroyuki
Ham Seungsook
NGK Spark Plug Co. Ltd.
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