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. 22, 2013
Filed:
Oct. 31, 2012
Ntt Docomo, Inc., Chiyoda-ku, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A variable resonator that comprises a loop line () to which two or more switches () are connected and N of reactance circuits () (N≧3), in which switches () are severally connected to different positions on the loop line (), the other ends of the switches are severally connected to a ground conductor, and the switches are capable of switching electrical connection/non-connection between the ground conductor and the loop line (), the reactance circuits () severally have the same reactance value, the loop line () has a circumference corresponding to one wavelength or integral multiple thereof at a resonance frequency corresponding to each reactance value of each reactance circuit, and the reactance circuits () are electrically connected to the loop line () as branching circuits along the circumference direction of the loop line () at equal electrical length intervals.