Title :
Absorbing boundary condition for vector and scalar potentials arising in electromagnetic finite element analyses in frequency and time domains
Author :
Brauer, John R. ; Mittra, Raj ; Lee, Jin-Fa
Author_Institution :
MacNeal-Schwendler Corp., Milwaukee, WI, USA
Abstract :
An absorbing boundary condition (ABC) is developed and applied to both frequency and time-domain finite-element analyses of electromagnetic waves using vector and scalar potentials. The ABC is derived using Bayliss-Turkel approximations of first and second orders. Results for a radial waveguide and for an antenna array are shown to agree with classical results.<>
Keywords :
antenna arrays; antenna radiation patterns; antenna theory; electromagnetic wave propagation; finite element analysis; frequency-domain analysis; time-domain analysis; waveguide theory; Bayliss-Turkel approximations; absorbing boundary condition; antenna array; electromagnetic finite element analyses; radial waveguide; scalar potentials; time-domain finite-element analyses; Boundary conditions; Electromagnetic analysis; Electromagnetic scattering; Electromagnetic waveguides; Finite element methods; Frequency domain analysis; Integral equations; Time domain analysis; Transmission line matrix methods; USA Councils;
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.1991.175068
