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. 30, 2002
Filed:
May. 05, 1998
Applicant:
Inventors:
Akira Enokihara, Nara, JP;
Kentaro Setsune, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 7/08 ; H01B 1/202 ;
U.S. Cl.
CPC ...
H01P 7/08 ; H01B 1/202 ;
Abstract
A high-frequency circuit element that realizes a high degree of input-output coupling without causing an increase in loss and irregularity in impedance. A resonator made of a conductor film is formed on a substrate made of a dielectric monocrystal or the like. An input-output line made of a conductor film having a uniform line width is formed on the same surface of the substrate as the surface on which the resonator is formed. A part of the side edge of the input-output line is located along a coupling part on the peripheral part of the resonator and spaced from the resonator by a gap part.