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:
Oct. 23, 2012
Filed:
Sep. 07, 2007
Kunihiro Kawai, Kanagawa, JP;
Hiroshi Okazaki, Kanagawa, JP;
Shoichi Narahashi, Kanagawa, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A variable resonator includes a ring-shaped conductor line () which is provided on a dielectric substrate () and has a circumferential length of a wavelength at a resonance frequency or an integral multiple of the wavelength, and at least two circuit switches (), wherein the circuit switches () have one ends () electrically connected to the ring-shaped conductor line () and the other ends () electrically connected to a ground conductor () formed on the dielectric substrate (), electrical connection/disconnection between the ground conductor () and ring-shaped conductor line () can be switched, and the one ends () of the circuit switches () are connected to the ring-shaped conductor line () on different portions.