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. 07, 2017
Filed:
Jun. 22, 2016
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Yohei Koga, Kawasaki, JP;
Hiroyuki Egawa, Fukuoka, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An antenna apparatus includes a first ground plane; a second ground plane having first, second, third and fourth sides, a cutout part, and a slit having an open end; a first radiating element having first and second lines, and a feeding point; a second radiating element having a third line; and a parasitic element having first and second parasitic lines. A length from the feeding point to an end part of the slit is set to one-half wavelength at a first communication frequency, a total length of a length from an end part of the fourth line to the feeding point, and a length from a ground potential point to an end part of the second parasitic line is set to one-half wavelength at a second communication frequency, and a length of the third line and the fourth line is set to one-quarter wavelength at a third communication frequency.