Dielectric filter having external connection formed on dielectri

Details Dielectric filter having external connection formed on dielectri Dielectric filter having external connection formed on dielectri

1991-03-19

1992-09-01

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333222, H01P 1202

Patent

active

051442698

ABSTRACT:
A dielectric filter includes: a plurality of coaxial resonators and external connectors; each of the coaxial resonators includes a dielectric block having an outer peripheral surface and an inner peripheral surface parallel to a common axis and having two end faces, a conductive layer formed on the outer and inner peripheral surfaces and on one of the end faces, and a depressed part for accepting the external connection means and formed by removing a portion of the conductive layer on at least the outer peripheral surface in the vicinity of the other end face; and the external connectors includes a dielectric substrate, and an external connection electrode formed on the dielectric substrate and capacitance-coupled with the conductive layer on the inner peripheral surface.

REFERENCES:
patent: Re32768 (1988-10-01), D'Avello et al.
patent: 4937542 (1990-06-01), Nakatuka
patent: 5045824 (1991-09-01), Metroka

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