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:
Jul. 08, 2014
Filed:
Nov. 12, 2010
Kunihiro Kawai, Yokohama, JP;
Hiroshi Okazaki, Zushi, JP;
Shoichi Narahashi, Yokohama, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A switch is replaced with a parallel resonant circuit. More specifically, a variable resonator includes a line partthat includes one or more lines and has an annular shape, at least two parallel resonant circuitscapable of changing a characteristic, and at least three variable reactance blockscapable of changing a reactance value, in which the parallel resonant circuitsare electrically connected to the line partat one end thereof at different positions on the line part, and the variable reactance blocksare electrically connected to the line partat predetermined intervals based on an electrical length at a resonance frequency.