Electromagnetic Scattering from a PEC Wedge Capped with Cylindrical Layers with Dielectric and Conductive Properties
Makaleler > Tam Makale · 2017
Yazarlar: H. Ozturk, K. Yegin
Radioengineering, Uluslararası, Wos, 2017, cilt 26, ss 120-129
Özet
Electromagnetic scattering from a layered capped wedge is studied.The wedge is assumed infinite in z-direction (longitudinal) and capped with arbitrary layers of dielectric with varying thicknesses and dielectric properties including conductive loss.Scalar Helmholtz equation in two dimensions is formulated for each solution region and a matrix of unknown coefficients are arrived at for electric field representation.Closed form expressions are derived for 2-and 3-layer geometries.Numerical simulations are performed for different wedge shapes and dielectric layer properties and compared to PEC-only case.It has been shown that significant reduction in scattered electric field can be obtained with 2-and 3-layered cap geometries.Total electric field in the far field normalized to incident field is also computed as a precursor to RCS analysis.Analytical results can be useful in radar cross section analysis for aerial vehicles.