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:
Nov. 29, 2005
Filed:
Sep. 15, 2003
Shuichi Sekine, Yokohama, JP;
Hiroshi Watanabe, Hachioji, JP;
Motoji Noda, Sagamihara, JP;
Noriaki Odachi, Yokohama, JP;
Shuichi Sekine, Yokohama, JP;
Hiroshi Watanabe, Hachioji, JP;
Motoji Noda, Sagamihara, JP;
Noriaki Odachi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An antenna apparatus coupled to a feeding point arranged on a cavity is disclosed. The apparatus includes a linear element extending from the feeding point and having a physical length that is shorter than a one-quarter wavelength. A half-wave antenna element is connected to an end of the linear element. The apparatus also includes a metal conductor piece including a connecting point between the linear element and the half-wave antenna element and located close to one surface of the cavity. The linear element includes a first portion extending in a first direction opposite to that of the half-wave element from the feeding point and in parallel with one surface of the cavity and a second portion extending in a second direction, which is equal to a direction in which the half-wave antenna element extends, and in parallel with one surface of the cavity.