An efficient ways of overcoming sampling-plane truncation error in time-domain near-field measurement

Abstract

The truncation error effect is very serious in the far field for time-domain near-field measurement. The paper introduces the PML technique for time-domain near field measurement. By means of the plane-wave spectral expansion and PSTD algorithm, we simulate the whole space of field distribution for overcoming the effect of truncation error. Numerical examples demonstrate the efficiency of this method.