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. 17, 2024
Filed:
Apr. 23, 2021
Murata Manufacturing Co., Ltd., Kyoto, JP;
Hiroshi Nishida, Kyoto, JP;
MURATA MANUFACTURING CO, LTD., Kyoto, JP;
Abstract
An antenna device includes a substrate, a first ground layer, a radiation electrode, and waveguide structures. Each of the waveguide structures has a slit and a conductor wall. The slit is positioned in an electric field direction of the radiation electrode and provided in the first ground layer. The conductor wall surrounds the slit and extends in a thickness direction of the substrate. A dimension of the waveguide structure in a magnetic field direction in plan view is greater than ½ of a wavelength of a radio wave emitted by the radiation electrode in a medium of the substrate. A length from the slit to a terminal portion of the waveguide structure is about ¼ of a wavelength of the radio wave emitted by the radiation electrode in the waveguide structure.