Title :
On the modeling of the impedance boundary condition in the time domain
Author :
Mohammadian, A.H. ; Hall, W.F. ; Shankar, V.
Author_Institution :
Rockwell Int. Sci. Center, Thousand Oaks, CA, USA
Abstract :
It is shown how the impedance boundary condition can be extended to the time domain. Details of its implementation are shown for the time-domain-finite-volume method previously developed by the authors (1991). Only the first-order impedance boundary condition is considered. The radar cross sections for a dielectric-coated perfectly conducting cylinder computed for three different values of surface impedance by this method are shown. They compare very well with the series solution.<>
Keywords :
boundary-value problems; electric impedance; electromagnetic wave scattering; radar cross-sections; time-domain analysis; RCS; dielectric-coated perfectly conducting cylinder; electromagnetic scattering; impedance boundary condition; radar cross sections; surface impedance; time domain; time-domain-finite-volume method; Boundary conditions; Coatings; Conducting materials; Dielectric losses; Frequency domain analysis; Grid computing; Magnetic fields; Magnetic materials; Surface impedance; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.174968
