Accession Number:

AD1043296

Title:

A Finite Element Perspective in Analyzing Maxwell 's Equations

Descriptive Note:

Technical Report,01 Jul 1998,28 Feb 1999

Corporate Author:

U.S. Army Research Laboratory Aberdeen Proving Ground United States

Personal Author(s):

• Korjack, T. A.

Report Date:

1999-03-01

Pagination or Media Count:

34.0

Abstract:

An analysis of the three-dimensional 3-D finite element formulation of Maxwells equations governing classical electromagnetic propagation in dielectrics is given including its analogy to Naviers equation. The weak form of the electric field equation is reviewed along with dispersion analysis and approximation equations. Radiation boundary conditions are also explored to include paraxial absorkr, Sandler absorber, and other absorkr comparisons. In addition, time domains vs. frequency domains are investigated with a listing of possible advantages and disadvantages. It was concluded that if large-scale calculations need to be done today, the-domain techniques provide the most practicable means however, it is still premature to promote such solvers as production level tools for engineers.

Descriptors:

• MAXWELLS EQUATIONS
• finite element analysis
• DIELECTRICS
• electric fields
• differential equations
• frequency domain
• time domain

Subject Categories:

• Electricity and Magnetism
• Numerical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE