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. 14, 2012
Filed:
Aug. 04, 2009
Shinji Fukui, Okazaki, JP;
Mitsuru Fujita, Toyohashi, JP;
Shinji Fukui, Okazaki, JP;
Mitsuru Fujita, Toyohashi, JP;
Denso Corporation, Kariya, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
An antenna apparatus is disclosed. The antenna apparatus includes a board and a line antenna. The board includes: a base part having dielectric layers and a conductive layer disposed between the dielectric layers; multiple metal plates arranged on one surface of the base part while being spaced apart at even intervals so as to provide a band-gap surface; and a connection part via which the conductive layer is electrically connectable with the multiple metal plates. The line antenna is located on a band-gap surface side of the board, is arranged along the band gap surface, and is configured to receive and transmit the electromagnetic wave within an operating frequency band. The connection part includes a first adjustment circuit that is configured to individually adjust an impedance between the conductive layer and each of the plurality of metal plates.