Title :
Electromagnetic scattering from transversely corrugated cylindrical structures using the asymptotic corrugated boundary conditions
Author_Institution :
Dept. of Electr. Eng., Univ. of Mississippi, University, MS, USA
Abstract :
Simple surface integral equations are obtained for infinitely extended cylindrical structures with arbitrarily shaped cross-section of transverse corrugations. The asymptotic corrugated boundary condition (ACBC) for periodic transverse corrugated surfaces is used. We show how to apply the method to calculate the plane wave scattering from arbitrarily shaped cylinders with dielectric-filled corrugations. The method of moments is used to solve the integral equations and the numerical solution is verified with some published results. Several examples of corrugated struts are analyzed to reduce the forward scattering from the structures.
Keywords :
electromagnetic wave scattering; integral equations; method of moments; periodic structures; approximation method; arbitrarily shaped cylinder; asymptotic corrugated boundary condition; dielectric-filled corrugation; electromagnetic scattering; method of moments; periodic structure; periodic transverse corrugated surfaces; plane wave scattering; surface integral equations; transversely corrugated cylindrical structure; Boundary conditions; Corrugated surfaces; Dielectrics; Electromagnetic scattering; Engine cylinders; Integral equations; Moment methods; Periodic structures; Strips; Surface impedance; 65; Approximation methods; asymptotic boundary methods; electromagnetic scattering by periodic structures;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.835234
