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:
Nov. 02, 2010
Filed:
Nov. 01, 2006
Kunihiro Kawai, Yokohama, JP;
Atsushi Fukuda, Yokohama, JP;
Hiroshi Okazaki, Yokosuka, JP;
Shoichi Narahashi, Yokohama, JP;
Kunihiro Kawai, Yokohama, JP;
Atsushi Fukuda, Yokohama, JP;
Hiroshi Okazaki, Yokosuka, JP;
Shoichi Narahashi, Yokohama, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A variable resonator has a dielectric substrate, an input/output lineformed on the dielectric substrate, a first resonatorthat has one end connected to the input/output lineand the other end grounded, and a second resonator that has one end connected to the input/output lineat the point of connection of the one end of the first resonatorand the other end grounded via a terminal switch. When the terminal switchis turned off, resonance occurs at a frequency at which the sum of the line lengths of the first resonatorand the second resonatorequals to a quarter of the wavelength. When the terminal switchis turned on, resonance occurs at a frequency at which a half of the sum of the line lengths equals to a quarter of the wavelength.