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:
Aug. 07, 2007
Filed:
Sep. 22, 2003
Tomoshige Furuhi, Sagamihara, JP;
Yohei Ishikawa, Yokohama, JP;
Tomoshige Furuhi, Sagamihara, JP;
Yohei Ishikawa, Yokohama, JP;
Murata Manufacturing Co., Ltd., Kyoto-Fu, JP;
Abstract
A resonance element arrayis disposed between a primary radiatorand a lens. In the resonance element array, resonance elements of linear conductors and variable reactance circuits are arranged on a dielectric substrate. A control voltage is applied to a fixed variable reactance circuit by a control portion so that a fixed resonance element is excited by an electromagnetic wave from the primary radiatorand the direction of optical path to be collimated by the lensis electronically changed. Thus, an antenna device, in which a beam scanning is speeded, power consumption for the beam scanning is reduced, operation noise in the beam scanning is eliminated, the reliability is increased, and, when required, the beam direction can be directed to any direction, can be obtained. Furthermore, when necessary, the beam radiation pattern can be changed.