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:
Dec. 10, 2024
Filed:
Jan. 24, 2023
Denso Corporation, Kariya, JP;
Yuuji Kakuya, Nisshin, JP;
Kenichirou Sanji, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
An antenna device includes a ground plate made of a flat conductor member, and an opposing conductive plate, which is a flat conductor member placed at a predetermined distance from the ground plate and electrically connected to a power supply line, a short-circuit portion provided in a central region of the opposing conductive plate for electrically connecting the opposing conductive plate and the ground plate. An operating frequency is a frequency at which an inductance of the short-circuit portion and the capacitance formed by the ground plate and the opposing conductive plate resonate in parallel. The short-circuit portion has a perimeter part that is short-circuited with the opposing conductive plate. A circuit is arranged in an area surrounded by a part where a short-circuit portion is short-circuited on the opposing conductive plate.