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. 26, 2024
Filed:
Oct. 12, 2021
Stora Enso Oyj, Helsinki, FI;
Ilkka Yli-Peltola, Kangasala, FI;
Stora Enso OYJ, Helsinki, FI;
Abstract
An RFID reader antenna () for use in an intelligent cabinet (), such as a smart fridge, is disclosed. The antenna () is configured for operation within the UHF band and has omnidirectional radiation pattern and circular polarization. The antenna comprises a dielectric substrate (), and a ground plane () provided on the dielectric substrate. An aperture () forms an open area within the bounds of the ground plane (). A radiating element () is provided on the dielectric substrate in a plane parallel to the ground plane, and arranged within the open area, when viewed from a direction perpendicular to the ground plane (), and surrounded by the ground plane.