Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Patent
1993-08-26
1995-01-17
Ham, Seungsook
Wave transmission lines and networks
Coupling networks
Frequency domain filters utilizing only lumped parameters
333185, H03H 700
Patent
active
053829271
ABSTRACT:
Two coil electrode patterns are formed on one surface of a plate consisting of a dielectric material. These coil electrode patterns are formed in a loop shape, and are disposed so as to be magnetically coupled with each other. Input/output terminal patterns and earth terminal patterns are drawn out from the coil electrode patterns toward an edge portion of the plate. The input/output terminal pattern and the earth terminal pattern of one coil electrode pattern are disposed at a selected at a distance so as to provide a predetermined impedance. An earth electrode pattern is formed opposite portion of the coil electrode patterns with the plate between them. Earth terminal patterns are formed to the earth electrode pattern. The earth terminal patterns of the earth electrode pattern are connected to the earth terminal patterns of the coil electrode patterns. A trimming electrode may be formed for adjusting the passing band frequency of the band-pass filter optionally.
REFERENCES:
patent: 4894629 (1990-01-01), Okamura et al.
patent: 4918570 (1990-04-01), Okamura et al.
patent: 5105176 (1992-04-01), Okamura et al.
Kasahara Masahiro
Okamura Hisatake
Taniguchi Tetsuo
Tsuru Teruhisa
Ham Seungsook
Murata Manufacturing Co. Ltd.
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