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.

Date of Patent:
Mar. 25, 2025

Filed:

Nov. 28, 2022
Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Yuuji Kakuya, Nisshin, JP;

Masakazu Ikeda, Nisshin, JP;

Kenichirou Sanji, Kariya, JP;

Tomokazu Miyashita, Kariya, JP;

Ryozou Fujii, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 9/04 (2006.01); H01Q 1/32 (2006.01); H01Q 1/48 (2006.01);
U.S. Cl.
CPC ...
H01Q 9/0421 (2013.01); H01Q 1/3291 (2013.01); H01Q 1/48 (2013.01);
Abstract

An antenna device includes a ground plate and an antenna element. The ground plate is a conductor member with a flat rectangular shape. The antenna element is a conductor member having a feed point electrically connected to a feeder line. A length of the ground plate in a predetermined direction is shorter than a target wavelength that is a wavelength of a radio wave to be transmitted or received. The ground plate is connected to a grounding cable at a connection position on the ground plate. The connection position is shifted from an edge of the ground plate by an odd multiple of ¼ of the target wavelength.


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