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. 02, 2021
Filed:
Feb. 13, 2017
Denso Corporation, Kariya, JP;
Soken, Inc., Nisshin, JP;
National University Corporation Kyoto Institute of Technology, Kyoto, JP;
Masakazu Ikeda, Nisshin, JP;
Yuji Sugimoto, Nisshin, JP;
Hiroaki Kuraoka, Kariya, JP;
Shiro Koide, Kariya, JP;
Tetsuya Ueda, Kyoto, JP;
Kohei Enomoto, Kyoto, JP;
DENSO CORPORATION, Kariya, JP;
SOKEN, INC., Nisshin, JP;
National University Corporation Kyoto Institute of Technology, Kyoto, JP;
Abstract
An antenna device includes a ground plate, a patch portion disposed parallel to the ground plate with a particular spacing, a plurality of short circuit portions that electrically connect the patch portion to the ground plate, and a loop portion which is a loop shaped conductor member at a particular spacing from an outer edge portion of the patch portion. The patch portion has an area which forms an electrostatic capacitance that causes parallel resonance with an inductance provided by the short circuit portions at a particular target frequency. The loop portion is formed with a perimeter length which is an integral multiple of the wavelength of radio waves at the target frequency. A feed point is disposed on the loop portion, and current is supplied to the patch portion through the loop portion.