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Augmented Electric-Field Integral Equation for Inhomogeneous Media
- Source :
- IEEE Antennas and Wireless Propagation Letters. 16:2967-2970
- Publication Year :
- 2017
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2017.
-
Abstract
- The augmented electric-field integral equation is extended for the analysis of inhomogeneous media at low frequencies. The internal surface integral equation for inhomogeneous region is derived from the vector potential ( ${{\mathbf A}}$ ) and the scalar potential ( ${{\mathbf \Phi }}$ ) equations, which are free of low-frequency breakdown. In the new equations, Green's functions of ${{\mathbf A}}$ and ${{\mathbf \Phi }}$ for inhomogeneous media are incorporated. Due to the absence of the analytic solutions, Green's functions for ${{\mathbf A}}$ and ${{\mathbf \Phi }}$ are solved numerically with the finite-element method and represented in matrix forms. Numerical examples are presented to demonstrate the validity of the proposed scheme in the study of inhomogeneous objects at low frequencies.
- Subjects :
- 010302 applied physics
Mathematical analysis
020206 networking & telecommunications
Scalar potential
02 engineering and technology
Electric-field integral equation
01 natural sciences
Integral equation
Finite element method
Matrix (mathematics)
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Boundary value problem
Electric potential
Electrical and Electronic Engineering
Mathematics
Vector potential
Subjects
Details
- ISSN :
- 15485757 and 15361225
- Volume :
- 16
- Database :
- OpenAIRE
- Journal :
- IEEE Antennas and Wireless Propagation Letters
- Accession number :
- edsair.doi...........0d977d3d7632fb5a59f3b02cd39083c1