Abstract
Two methods for analyzing antennas or scatterers having nonlinear resistive loads are discussed. The first is a direct time-domain integral equation approach, whereas the second involves the use of frequency domain data to compute the time-dependent currents and voltages across the nonlinear load. Both transient and time-harmonic excitations are considered in the sample problems illustrated here which involve a center-loaded linear antenna. Although it is difficult to do so with the direct time-domain approach, the second method of analysis may be readily applied to an arbitrary antenna whose frequency response is either measurable or calculable.
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