Patent ID: 8884765

Claim:
A surveillance and/or identification device or tag, comprising: a) an antenna and/or inductor; b) a planar interposer; c) a first capacitor plate on or from said planar interposer, electrically coupled or connected to said antenna or inductor at a first location; d) an inorganic dielectric layer on said first capacitor plate, the inorganic dielectric layer having a predetermined breakdown voltage; and e) a second capacitor plate on said inorganic dielectric layer, electrically coupled or connected to said antenna or inductor at a second location, wherein the antenna and/or inductor and the first and second capacitor plates form a resonant circuit that, when the device or tag is in a detection zone comprising an oscillating electromagnetic field, generates, radiates, reflects, or modulates a detectable electromagnetic signal, or causes a disturbance in the oscillating electromagnetic field, and the device or tag is deactivated when a deactivating electromagnetic field induces a voltage differential across the inorganic dielectric layer greater than the breakdown voltage.