Scattering from a Truncated Metamaterial Layer Hosted by a Planar PEC Structure: Uniform Asymptotic Solution and Validation Tests

This research paper proposes an analytical approach for evaluating electromagnetic scattering from a planar complex object made of perfect electric conductor, which hosts double negative metamaterial half-layer on the lit face. The method is based physical optics approximation equivalent sources and works in framework uniform geometrical theory diffracion, so that scattered field surrounding free space obtained by adding reflected contribution diffracted one, originated surface break. effectiveness proposed tested proved using full-wave numerical tool to generate reference values.