Second-order approximate boundary conditions for multilayered absorbin
g covering are developed. For dual-layer structures, the coefficients
are given in explicit form. The results are applicable to all practica
lly interesting cases, as is demonstrated by numerical examples. These
results can be used in analytical and numerical studies of scattering
from complex-shaped bodies covered with microwave absorbers. (C) 1998
John Wiley & Sons, Inc.