Abstract
The time-harmonic scattering properties of wire scatterers with nonlinear or time-harmonic loads are analyzed in the frequency domain. First, the scattering problem is treated as a network problem that is analyzed by the method of moments. Then, the harmonic balance technique is applied in the nonlinear load case, and the conversion matrix technique is applied in the time-harmonic load case. The analysis is shown to be efficient for the calculation of steady-state response compared with the conventional time-domain approach. Numerical simulation shows the effect of nonlinear loads on changing the scatterer radar cross section (RCS), the intermodulation phenomenon as the incident wave containing two different frequencies, and the effect of time-harmonic loads on modulating the scattered field of wire scatterer.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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