Title :
Time-harmonic electromagnetic field evaluation using a hybrid FEM/boundary method for open transmission line systems
Author :
Silva, J. F Borges da ; Machado, V.Malo
Author_Institution :
Centro de Electrotecnica Teorica e Medidas Electr., Inst. Superior Tecnico, Lisbon, Portugal
fDate :
9/1/1998 12:00:00 AM
Abstract :
This paper is a contribution to the electromagnetic field evaluation of open boundary time-harmonic eddy current problems, using a hybrid Finite Element/Boundary Fourier Transform method (FE/BFT). The finite element method applies inside a fictitious cylindrical surface where the conductors lie and the boundary method applies to the whole empty space outside the cylinder. The field descriptions, inside and outside, are matched on a set of discretization nodes over the fictitious boundary. The field over the boundary is handled in the spatial frequency domain by the use of a suitable discrete Fourier transform
Keywords :
boundary-elements methods; discrete Fourier transforms; eddy currents; electromagnetic field theory; finite element analysis; transmission lines; DFT; boundary Fourier transform method; discrete Fourier transform; discretization nodes; eddy current problems; electromagnetic field evaluation; field descriptions; finite element method; hybrid FEM/boundary method; open transmission line systems; spatial frequency domain; time-harmonic EM field evaluation; Conductors; Current density; Eddy currents; Electromagnetic fields; Equations; Finite element methods; Fourier transforms; Frequency domain analysis; Transmission line matrix methods; Transmission lines;
Journal_Title :
Magnetics, IEEE Transactions on
