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:
Jul. 12, 1988
Filed:
Apr. 04, 1986
Moriaki Ueno, Soma, JP;
Alps Electric Co., Ltd., , JP;
Abstract
An interdigital line type dielectric filter acting as a bandpass filter at radio frequencies has a dielectric body on which a grounding electrode is formed. Two parallel exciter lines extend through the block. Several resonant lines are juxtaposed to one another between the exciter lines. One short-circuited end of each resonant line is connected to the grounding electrode, while the other open end is not connected to it. The short-circuited end and the open end of any one of the resonant lines are disposed on opposite sides of those of its neighboring one resonant line. Those portions of the block which are in the vicinities of the open ends of the resonant lines are cut out so that the open ends are exposed.