Resonance Tag, Method of Reversibly Changing Resonance Characteristics Of Resonance Circuit,And Capacitive Element

摘要

In a resonance tag provided with a resonance circuit composed of a capacitive element and an inductive element, the capacitive element is characterized by having a condition under which the capacitance of the capacitive element is reversibly changed by a voltage applied to the resonance circuit and anther condition under which the capacitance of the capacitive element is irreversibly changed by another voltage applied to the resonance circuit.