Interdigital strip line filter having a plurality of different w

Details Interdigital strip line filter having a plurality of different w Interdigital strip line filter having a plurality of different w

1993-10-06

1994-12-27

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333204, H01P 1203

Patent

active

053769082

ABSTRACT:
A strip line filter which has a plurality of resonance electrodes on one major surface of a dielectric substrate. A guard electrode is formed on a side of the dielectric substrate and connects the resonance electrodes with a grounding electrode which is formed on the other major surface of the dielectric substrate. Each of the resonance electrodes has a narrow portion in a side near the guard electrode and a wide portion in an open end side. Capacitances generated between the resonance electrodes and the grounding electrode and the inductances of the resonance electrodes form LC resonance circuits. In other words, the resonance electrodes, the dielectric substrate and the grounding electrode form resonators.

REFERENCES:
patent: 3451015 (1969-06-01), Heath
patent: 4551696 (1985-11-01), Moutrie et al.
patent: 5105173 (1992-04-01), Itou
patent: 5248949 (1993-09-01), Eguchi et al.

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