Stripline filter having internal ground electrodes

Details Stripline filter having internal ground electrodes Stripline filter having internal ground electrodes

1993-02-26

1994-12-20

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333219, H01P 1203

Patent

active

053749090

ABSTRACT:
A compact stripline filter for use in a high frequency circuit for a portable telephone, for example, including an internal ground electrode. The filter includes a first resonator having a first main surface, a first ground electrode disposed in an opposed facing relationship to the entire surface of the first main surface of the first resonator, a first dielectric layer interposed between the first main surface of the first resonator and the first ground electrode, and a first internal ground electrode formed in the first dielectric layer and disposed in an opposed facing relationship to a portion of the first main surface of the first resonator.

REFERENCES:
patent: Re31470 (1983-12-01), Bedard et al.
patent: 3451015 (1969-06-01), Heath
patent: 4418324 (1983-11-01), Higgins
patent: 4692726 (1987-09-01), Green et al.
patent: 4963843 (1990-10-01), Peckham

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