The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 1994
Filed:
Nov. 30, 1992
Yoshifumi Yamagata, Kagoshima, JP;
Kyocera Corporation, Kyota, JP;
Abstract
A dielectric filter comprises a filtering member made up of resonators, intercoupled through a laminated substrate joined to the filtering member and containing interlaminal patterned conductive platings constituting capacitive and inductive elements. Electric field leakage arising among the conductive platings is reduced, improving the effective dielectric constant of the substrate. The extent of the conductive platings providing desired capacitance and selected electrical length is reducible, to decrease the size of the substrate. Furthermore, the substrate construction prevents foreign matter from becoming lodged on, or even from being brought into contact with, the conductive platings, stabilizing capacitive coupling.