Shaw, William T. and Dougan, Andrew J. (2005) Curvature corrected impedance boundary conditions in an arbitrary basis. IEEE Transactions on Antennas and Propagation . (In Press)

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Official URL: http://www.ict.csiro.au/aps/
Abstract
We present a generalization of the Rytov analysis for curvature corrections to the "impedance boundary condition" (IBC) that allows such boundary conditions to be written down using general coodinates systems and bases for vectors. This removes the need to base the analysis of IBCs on either principal curvature axes or on hypothetical orthogonal coordinate systems. As an application, we show how to write down highorder IBCs for surfaces that are the deformation of a plane. We also show how the use of such an IBC can be used to further reconcile Kirchhoff and small perturbation methods.
Item Type:  Article 

Uncontrolled Keywords:  Approximate boundary bonditions, impedance, impedance boundary condition, Leontovich boundary condition, dielectric body, impedance body, impedance surface, electromagnetic scattering 
Subjects:  H  N > Information and communication, circuits D  G > Geophysics O  Z > Statistics O  Z > Optics, electromagnetic theory 
Research Groups:  Oxford Centre for Industrial and Applied Mathematics 
ID Code:  167 
Deposited By:  William Shaw 
Deposited On:  01 Feb 2005 
Last Modified:  29 May 2015 18:17 
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