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. 16, 2002
Filed:
Jan. 04, 1999
Applicant:
Inventors:
Kazuhiko Kubota, Mukou, JP;
Tomoyuki Ise, Nagaokakyo, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 1/20 ; H01P 1/213 ; H01P 7/10 ;
U.S. Cl.
CPC ...
H01P 1/20 ; H01P 1/213 ; H01P 7/10 ;
Abstract
A band elimination dielectric filter in which the non loaded Q is increased by substantially eliminating the actual current flowing in a shield cavity, and the height is reduced. The band elimination dielectric filter includes a conductive shield cavity , a dielectric resonator which is arranged in the shield cavity and in which electrodes are formed on two surfaces opposite to each other; and an external coupling which is arranged in the shield cavity and connected to the dielectric resonator