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. 14, 1999
Filed:
Jan. 28, 1998
Shigeji Arakawa, Kanazawa, JP;
Abstract
A dielectric filter includes a pair of transverse electric (TE).sub.10 -mode resonators connected in series. Each resonator has a conductor formed on substantially the entire surface of a dielectric body. On the connection surfaces of the resonators are formed grooves, respectively. On the inner surfaces of the grooves, central gaps are formed in the conductors. The pair of resonators are connected at their connection surfaces to combine the grooves to form a coupling-adjustment hole having an axis parallel to the interface between the resonators. The gaps combine to form a coupling window. The groove form a coupling-adjustment hole, through which the coupling window is accessible for being adjusted. The coupling window electromagnetically couples the pair of resonators.