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. 06, 2007
Filed:
Feb. 01, 2005
Kunihiro Kawai, Yokohama, JP;
Daisuke Koizumi, Zushi, JP;
Hiroshi Okazaki, Yokosuka, JP;
Shoichi Narahashi, Yokohama, JP;
Yasushi Yamao, Yokosuka, JP;
Kunihiro Kawai, Yokohama, JP;
Daisuke Koizumi, Zushi, JP;
Hiroshi Okazaki, Yokosuka, JP;
Shoichi Narahashi, Yokohama, JP;
Yasushi Yamao, Yokosuka, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A variable resonator is provided which comprises signal conductorformed on top side surface of dielectric substrate, ground conductor layerformed on back side surface thereof and switches, wherein signal conductor comprises a plurality of first conductor lines-and second conductor line-connected with all of first conductor lines, each first conductor line has a width larger than that of second conductor line to thereby a signal path through which high-frequency electric signal passes and which is longer than length of second conductor line is provided, switchesare connected to the ends of first conductor lines, whereby selectively opening and closing switches will electrically disconnect and interconnect interspaces between ends of first conductor lines to thereby vary length of signal path and thus change resonance frequency.