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:
Sep. 02, 2003
Filed:
Feb. 15, 2002
Applicant:
Inventors:
Kenji Saito, Ishikawa-gun, JP;
Hiroki Wakamatsu, Kyoto, JP;
Assignee:
Murata Manufacturing Co. Ltd, , JP;
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/201 ;
U.S. Cl.
CPC ...
H01P 1/201 ;
Abstract
A dual-mode resonator including a conductive cavity that houses a conductive bar and a dielectric core through which the conductive bar is inserted duplexes and couples a TEM mode generated by the cavity and the conductive bar, and a TM mode generated by the cavity and the dielectric core. A TEM single-mode resonator is formed of a cavity body and a conductive bar. The dual-mode resonator and the TEM single-mode resonator form a filter apparatus.