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:
Feb. 17, 2026
Filed:
Mar. 28, 2022
Sato Corporation, Tokyo, JP;
Markus Frank, Stravalla, SE;
SATO Corporation, Tokyo, JP;
Abstract
The present disclosure broadly relates to a dual frequency reactive near field electromagnetic coupler arrangement for an RFID inlay, in particular encoding the RFID inlay by means of an electromagnetic signal. A core element of the arrangement is a double-ended linear metallic structure of a spiral or elongated spiral planar shape and comprising a plurality of loop-shaped metallic trace segments. The structure is connected to a feeding terminal and individual segments are interconnected by means of inductive and capacitive elements forming an LC filter network that is arranged so as to enable efficient operation of the coupler structure in two different frequency ranges, in particular HF and UHF. The present disclosure further relates to an RFID printer/encoder incorporating the dual frequency reactive near field electromagnetic coupler arrangement.