A transient array to increase the peak power delivered to a localized region in space .I. Theory and modeling

It is shown that an array of pulsed antennas (a transient array) can be used for providing a high concentration of electromagnetic energy into small regions. By controlling the timing of the pulses radiated from the individual elements, selected regions of space will see a coherent superposition of the radiated pulses forming "hot spots." The formation of "hot spots" is demonstrated by theoretical analysis. Using a highly damped sinusoid for the radiated pulse and dipole antenna elements, a contour plot of the peak electric field is determined for a linear array of six equally spaced sources. The impact of pulse-timing errors and the factors determining the size of the hot spot are also considered.