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:
Feb. 03, 2015
Filed:
Dec. 01, 2010
Kengo Onaka, Yokohama, JP;
Tsuyoshi Mukai, Nagaokakyo, JP;
Munehisa Watanabe, Yasu, JP;
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Abstract
An antenna that resonates at each of at least operating two frequency bands includes a first LC parallel circuit having a first impedance between a feeding element and a feeding circuit, and a second LC parallel circuit having a second impedance between a parasitic element and ground. The feeding element and the parasitic element are configured such that multiple resonant frequencies are positioned between the two operating frequency bands in a case where the impedances of the first and second LC parallel circuits are set to 0, and the LC parallel circuits having the first and second impedances cause the multiple resonance frequencies to shift to an operating frequency band on the lower frequency side and to the higher frequency side, of the two operating frequency bands.