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. 13, 2010
Filed:
Jun. 22, 2006
Applicants:
Masataka Fujinaga, Mine, JP;
Hiroshi Nakamura, Mine, JP;
Yoshiaki Fujiyama, Mine, JP;
Inventors:
Assignee:
UBE Industries, Ltd., Yamaguchi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/205 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a dielectric filter () for base station communication equipment, a rectangular solid dielectric block () is provided with a plurality of ¼ wavelength resonators (A-AB-B), which are arranged along side planes () of the dielectric block and extend in parallel to each other and to the side planes (). The dielectric block () is composed of dielectric ceramics having a relative dielectric constant of 5-20, and a size (H) in a direction orthogonally intersecting with the side planes () of the dielectric block () is 10-30 mm.