Patent ID: 8511568
Filing Date: 2013-08-20
Classification: H01Q

Abstract:
1. A sensor tag multiplane system comprising one or more metal plates having a curved face and a sensor or tag having a magnetic substance and a coil wound around said magnetic substance, wherein: said sensor or said tag is sandwiched by said one or more metal plates such that an axis direction of said coil is parallel to faces of said one or more metal plates; at least one end of said one or more metal plates perpendicular to the axis direction of said coil is insulated from any other metal plates, and wherein the magnetic substance is insulated from and not contacted by at least one of the one or more metal plates; magnetic field components generated by said coil are condensed in a space formed by said one or more metal plates and said sensor or said tag, wherein the magnetic field components generated along a center axis of said coil and the magnetic field components leaked from the side of the metal plates are utilized; and said space is sandwiched by said one or more metal plates.