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. 25, 2013
Filed:
Aug. 25, 2011
Stefan Mieslinger, Essenbach, DE;
Stefan Mieslinger, Essenbach, DE;
Identive Group, Inc., Santa Ana, CA (US);
Abstract
Described are RFID structures and methods for forming RFID structures. An RFID structure includes a loop antenna assembly, an antenna substrate supporting the loop antenna assembly, and a shielding layer parallel with a plane defined by the antenna substrate. The loop antenna assembly has a stand-alone resonant frequency of fabove or below a standardized reader frequency range. The loop antenna includes an antenna track and at least two contact pads. The loop antenna assembly in combination with the shielding layer has a resonant frequency of fbelow the standardized reader frequency range. If positioned against a metallic surface, the loop antenna assembly in combination with the shielding layer has a resonant frequency within the standardized reader frequency range.