Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1993-05-11
1994-04-19
Ham, Seungsook
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333205, H01P 1203
Patent
active
053049667
ABSTRACT:
A method of adjusting a frequency response in a filter device of a three-conductor type having a pair of stacked dielectric substrates with a plurality of strip-line resonator conductors being sandwiched therebetween, wherein the frequency adjusting of the filter is performed by partially removing the external ground conductor layer on the peripheral surface of each substrate at a region corresponding to a longitudinal side edge of each resonator conductor layer.
REFERENCES:
patent: 4157517 (1979-06-01), Kneisel et al.
patent: 5075653 (1991-12-01), Ito et al.
Hino Seigo
Ito Kenji
Ham Seungsook
NGK Spark Plug Co. Ltd.
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