Characteristic impedance boundary conditions for the solution of open boundary problems

Author

Feliziani, M.

Author_Institution

Dept. of Electr. Eng., Rome Univ., Italy

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1816

Lastpage

1819

Abstract

Open boundary conditions are presented to solve partial differential equations by means of the finite element method. Characteristic impedance boundary conditions are imposed on an artificial boundary to match the external domain with the internal one, avoiding the reflections of the electromagnetic field. An alternative method based on the application of the Green´s theorem is presented for low-frequency fields since the electric and magnetic fields can be considered uncoupled

Keywords

Green´s function methods; boundary-value problems; electric impedance; electromagnetic field theory; finite element analysis; partial differential equations; Green´s theorem; characteristic impedance boundary conditions; electric fields; electromagnetic field; finite element method; low-frequency fields; magnetic fields; open boundary problems; partial differential equations; Boundary conditions; Electromagnetic fields; Electromagnetic reflection; Finite element methods; H infinity control; Impedance; Magnetic analysis; Magnetic fields; Partial differential equations; Performance analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250759

Filename

250759