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:
May. 14, 2019
Filed:
Nov. 06, 2017
University of South Florida, Tampa, FL (US);
Ramiro Augusto Ramirez, Tampa, FL (US);
Thomas McCrea Weller, Lutz, FL (US);
Eduardo Antonio Rojas, Temple Terrace, FL (US);
University of South Florida, Tampa, FL (US);
Abstract
In one embodiment, a radio-frequency identification (RFID) tag includes a substrate having a top surface including first and second ends, a bottom surface, first and second end surfaces, and opposed lateral surfaces, a passive RFID integrated circuit (IC) chip mounted to the top surface of the substrate, a monopole antenna that includes a planar radiating arm that extends out from the RFID IC chip along the top surface of the substrate to the first end of the top surface of the substrate and a matching loop having two grounded matching stubs that surround the chip and a portion of the radiating arm, each matching stub comprising a longitudinal segment that extends along a longitudinal direction of the substrate and a transverse segment that extends along a transverse direction of the substrate along the top surface of the substrate to the radiating arm at a point located between the RFID IC chip and the first end of the top surface, and a ground plane formed on the bottom surface, the second end surface, and the top surface of the substrate, the ground plane wrapping around the substrate so as to extend from the second end of the top surface toward the RFID IC chip and being electrically coupled to the matching stubs and the radiating arm.