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. 15, 2014
Filed:
Apr. 07, 2011
Isao Ohba, Hachioji, JP;
Hiroyuki Hotta, Hamura, JP;
Koichi Sato, Tachikawa, JP;
Masao Teshima, Kunitachi, JP;
Isao Ohba, Hachioji, JP;
Hiroyuki Hotta, Hamura, JP;
Koichi Sato, Tachikawa, JP;
Masao Teshima, Kunitachi, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, an antenna apparatus comprises a first antenna element, a first lumped constant element, a first lumped constant element, a switch and at least one second lumped constant element. The first antenna element comprises a forward part, a folded part and a backward part, the forward part includes a start point connected to a feeding point, and the backward part includes an end point connected to ground. The first lumped constant element is inserted in the backward part. The switch is configured to select a current path in accordance with a control signal. The at least one second lumped constant element is to be selectively connected in parallel to the first lumped constant element through the switch.