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. 13, 2022
Filed:
Apr. 06, 2021
Fujitsu Limited, Kawasaki, JP;
Shigekazu Kimura, Yokohama, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An antenna device includes an antenna element and a dummy antenna element. The antenna element is configured to construct a patch antennae. The dummy antenna is coupled to a ground layer by a conductive through portion which pass through a substrate in a thickness direction. A position of the conductive through portion with respect to the dummy antenna element is a first position on a straight line that divides an angle between a first straight line and a second straight line, or a second position in the neighborhood of the first position. The first straight pass through a first feed point and a center of dummy antenna element. The second straight passing through a second feed point and the center. The first feed point and the second feed point being feed points when the dummy antenna element generates circularly polarized waves.