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:
Apr. 02, 2013
Filed:
Aug. 29, 2006
Masatoshi Hayakawa, Kanagawa, JP;
Kiyotada Yokogi, Tokyo, JP;
Yoshimi Takahashi, Miyagi, JP;
Kenji Asakura, Fukui, JP;
Shuichi Goto, Miyagi, JP;
Masatoshi Hayakawa, Kanagawa, JP;
Kiyotada Yokogi, Tokyo, JP;
Yoshimi Takahashi, Miyagi, JP;
Kenji Asakura, Fukui, JP;
Shuichi Goto, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
An antenna for receiving electromagnetic waves in a desired frequency band, includes a radiating conductor and a ground conductor, a feeder part, a wavelength-shortening section, and a magnetic field applying section. The radiating conductor and a ground conductor resonate at a resonance point frequency. The feeder part is configured to feed the radiating conductor with electricity. The wavelength-shortening section in which a magnetic body having both a dielectric property and a magnetic property is disposed close to the radiating conductor shifts the resonance point frequency into a band lower than the desired frequency band by a wavelength-shortening effect obtained based on the dielectric property and the magnetic property. The magnetic field applying section is configured to apply a magnetic field to the magnetic body so as to reduce a magnetic loss due to the magnetic body.