Dielectric resonator device comprising a dielectric resonator an

Details Dielectric resonator device comprising a dielectric resonator an Dielectric resonator device comprising a dielectric resonator an

1997-12-09

2000-01-18

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

3332191, H01P 710

Patent

active

060160918

ABSTRACT:
A dielectric resonator device has a dielectric member. Electrodes are respectively formed on the upper and lower surfaces of the dielectric member. The dielectric resonator device resonates at a mode having electric field components in a direction perpendicular to the upper and lower surface of the dielectric member. The electrodes formed on the dielectric member are each formed of a thin film multi layered electrode produced by alternately laminating thin film electrode layers and thin film dielectric layers. Each thin film dielectric layer which is sandwiched between the thin film multi layered electrode layers serves as a dielectric resonator. Accordingly, the thin film multi layered electrode acts as a laminated structure of a plurality of dielectric resonators. Thus, a current distributes over the plurality of thin film electrode layers, thereby alleviating the current concentration on the surface of the dielectric member. As a consequence, conduction losses of the overall resonator unit are reduced.

REFERENCES:
patent: 4613838 (1986-09-01), Wada et al.
patent: 4639699 (1987-01-01), Nishikawa et al.
patent: 5712605 (1998-01-01), Flory et al.
European Search Report dated Mar. 24, 1998.

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