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. 30, 2017
Filed:
Dec. 19, 2016
Antennasys, Inc., Windham, NH (US);
Spencer Webb, Windham, NH (US);
ANTENNASYS, INC., Windham, NH (US);
Abstract
A passive RFID tag that provides long-range reception, even when mounted on a conductive material or a human body. The antenna of the RFID tag is a loop antenna perpendicular to the mounting surface; it may be formed from a tubular sheet of conductive material to reduce conductive losses. An illustrative rectangular loop 1 inch wide by 0.15 inches high by 0.625 inches deep provides a high effective antenna aperture in a compact RFID tag. Multiple mounting positions may be provided for an RFID chip and for a resonating capacitor. Selection of different mounting positions for these components may allow tuning of impedance and resonant frequency without changing components, providing for simpler and more cost-effective manufacturing. The loop antenna may be formed for example from a stamped metal part with a hollow air core, from a double-sided thick PCB, or from an overlay of conductive ink onto a flexible material.