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Total- and scattered-field decomposition technique for the finite-element time-domain modeling of buried scatterers

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4 Author(s)
Zheng Lou ; Dept. of Electr. & Comput. Eng., Univ. of Illinois, Urbana, IL, USA ; Petersson, L.E.R. ; Jian-Ming Jin ; Riley, D.J.

The total- and scattered-field decomposition (TSFD) technique, developed earlier for scattering in free space, is extended for the finite-element time-domain (FETD) modeling of scattering by an object either residing above, partially embedded, or completely buried in a lossy dielectric half-space. The formulation leads to both a volumetric and a Huygens' surface method to excite an incident field in the total-field region. Numerical examples demonstrate the accuracy and the flexibility of the method.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:4 )