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:
Sep. 03, 2019
Filed:
Sep. 11, 2015
Nec Platforms, Ltd., Kawasaki-shi, Kanagawa, JP;
Jun Uchida, Kanagawa, JP;
NEC PLATFORMS, LTD, Kanagawa, JP;
Abstract
In order to provide an antenna that is small and resonates at a plurality of frequencies, an antenna according to the present invention is provided with: a first conductor of a ring shape, having an air gap; a second conductor arranged inside the ring, with both ends of the second conductor connected to the first conductor, having a first gap; and a third conductor arranged in a region surrounded by a part not including the air gap out of the first conductor, and the second conductor, with both ends connected to the first conductor, having a second gap, and a value obtained by multiplying a length of an outer periphery of a region surrounded by a part including the air gap out of the first conductor, and the third conductor, by capacitance of the air gap is different from a value obtained by multiplying a length of an outer periphery of a region surrounded by the second conductor, the third conductor, and the first conductor, by capacitance of the first gap.