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:
Apr. 28, 1998
Filed:
Jul. 09, 1996
Reddy R Vangala, Albuquerque, NM (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
A ceramic filter with a coplanar shield which has: a filter body (302) comprising a block of dielectric material having top (304), bottom (306) and side surfaces (308,310,312,314), and having a plurality of metallized through holes (316) extending from the top (304) to the bottom (306) surfaces defining resonators; a metallization layer substantially coating the bottom (306) and the side surfaces (306,310,312,314), and the top surface (304) having a metallized pattern thereon defining a top pattern; input-output pads (318); and a conductive shield (322) having standoff legs (324) which maintain the conductive shield at a predetermined height above the top pattern of the filter body, the standoff legs (324) are connected to a portion of the top pattern on the top surface of the filter at a desired distance from the side surface having the input-output pads.