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. 28, 2006
Filed:
Feb. 25, 2005
Makoto Taromaru, Soraku-gun, JP;
Takashi Ohira, Soraku-gun, JP;
Takuma Sawaya, Soraku-gun, JP;
Kyouichi Iigusa, Soraku-gun, JP;
Hiroki Tanaka, Soraku-gun, JP;
Satoru Tawara, Soraku-gun, JP;
Takashi Itoh, Soraku-gun, JP;
Emi Morita, Soraku-gun, JP;
Makoto Taromaru, Soraku-gun, JP;
Takashi Ohira, Soraku-gun, JP;
Takuma Sawaya, Soraku-gun, JP;
Kyouichi Iigusa, Soraku-gun, JP;
Hiroki Tanaka, Soraku-gun, JP;
Satoru Tawara, Soraku-gun, JP;
Takashi Itoh, Soraku-gun, JP;
Emi Morita, Soraku-gun, JP;
Abstract
An antenna structure with reduced bulkiness and capable of changing antenna directivity is provided. In order to achieve such an effect, the antenna structure includes a feed element of one of an inverted F type and a loop type, and a passive element of one of the inverted F type and loop type, and having a variable reactor so as to be capable of changing an electrical length, and the feed element and passive element are disposed with a predetermined distance therebetween.