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:
Jun. 30, 2026
Filed:
May. 02, 2024
Sick Ag, Waldkirch, DE;
Florian Pudenz, Waldkirch, DE;
SICK AG, Waldkirch, DE;
Abstract
An antenna for an RFID reading device is provided, wherein the antenna has an antenna element having four feed points and has a feed network that is configured to selectively connect an input signal to the feed points such that the antenna is operated with a circular polarization or a linear polarization. In this respect, the feed network has a switch arrangement in which different switch states are settable, with the feed network feeding the feed points with different phases and/or power portions of the input signal in a respective switch state; and has switch states for at least three of the four polarizations horizontal-linear polarization, vertical-linear polarization, clockwise circular polarization, and counterclockwise circular polarization are settable in the switch arrangement.