Line-Integral Approach to Computing Impedance Matrix Elements

We present a line-integral approach for computing the impedance-matrix elements in the traditional Rao-Wilton-Glisson formulation of the moment method for electromagnetic problems. The line integral extends over the perimeter of a triangle and can be computed numerically using a Gauss-Legendre quadr...

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Veröffentlicht in:	IEEE transactions on antennas and propagation 2007-10, Vol.55 (10), p.2767-2772
Hauptverfasser:	Asvestas, J.S., Bilow, H.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antennas Applied classical electromagnetism Arithmetic Bibliographies Boundary-integral equations Computation Conversion Electromagnetic wave propagation, radiowave propagation Electromagnetism electron and ion optics Exact sciences and technology Fundamental areas of phenomenology (including applications) Gaussian processes Gordon-Bilow transformation (GBT) Green's theorem impedance-matrix calculation Integral equations Integrals Mathematical analysis Mathematical models method of moments Moment methods numerical integration Physics Quadratures Radar antennas Surface impedance Testing Transmission line matrix methods Triangles Vectors
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Beschreibung
Zusammenfassung:	We present a line-integral approach for computing the impedance-matrix elements in the traditional Rao-Wilton-Glisson formulation of the moment method for electromagnetic problems. The line integral extends over the perimeter of a triangle and can be computed numerically using a Gauss-Legendre quadrature. We present the conversion of the surface integral to a line integral, and we perform calculations where we compare the present method to a surface quadrature approach.
ISSN:	0018-926X 1558-2221
DOI:	10.1109/TAP.2007.905815