RF powder particles including an inductance element, a capacitance element, and a photovoltaic cell and method for exciting RF powder
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United States of America Patent
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Apr 22, 2014
Grant Date -
Mar 25, 2010
app pub date -
Nov 26, 2007
filing date -
Nov 28, 2006
priority date (Note) -
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Abstract
RF particles that can render more difficult fabrication of counterfeit notes and the like, can generate radiofrequency magnetic fields by oscillation of a tank circuit having a particular resonant frequency, and that can easily and reliably supply electric power for oscillation, RF powder, and a method for exciting the RF powder are provided. In an RF powder particle, a coil (inductance element) serving as an antenna and a capacitor (capacitance element) connected to the coil are formed on an insulating film surface of a substrate. The inductance element and the capacitance element form a tank circuit, and a photovoltaic cell for supplying power to the tank circuit is disposed on the substrate.
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