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. 12, 1988
Filed:
Oct. 17, 1986
Applicant:
Inventor:
Moriaki Ueno, Soma, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ;
U.S. Cl.
CPC ...
333202 ; 333203 ; 333222 ;
Abstract
A dielectric filter comprises holes provided on a dielectric block, an inner conductor formed inside each hole, an earth electrode formed outside the dielectric block, a short-circuit electrode to connect the inner conductor with the earth electrode, input and output terminals inserted in the holes, a projection of dielectric material provided on the dielectric filter, one electrode formed on one surface of the projection and connected to the earth electrode, and other electrode formed on other surface of the projection and connected to the inner conductor, thereby large capacitance is formed between both electrodes and the dielectric filter can be formed in small size.