Patent ID: 7434516

Claim:
A fragment transmitter comprising: two electrodes; a ferroelectric material disposed between the two electrodes; a spark gap formed in the ferroelectric material connected to each electrode by a wire; and a resonant dipole transmitter in conjunction with the ferroelectric material to transmit at least one pulse upon weapon detonation that compresses the ferroelectric material, wherein compression of the ferroelectric material causes de-poling by phase transformation to produce temporal voltage oscillations V of the form V=V 0 e −αt cos ωt, such that ω 2 = 1 LC - R 2 4 ⁢ ⁢ L 2 , ⁢ and α = R 2 ⁢ ⁢ L , where L is inductance of the two wires, C is capacitance of the two electrodes, and R is a sum of R radiation and R loss such that R radiation is effective radiation resistance of the two wires and R loss includes other resistances of the transmitter.