Arbitrarily Oriented Perfectly Conducting Wedge Over a Dielectric Half-Space: Diffraction and Total Far Field
| Autor: | Guido Lombardi, Vito Daniele |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Diffraction
Electromagnetics 010504 meteorology & atmospheric sciences dielectric substrate Uniform theory of diffraction Plane wave geometrical optics Near and far field Geometry 02 engineering and technology 01 natural sciences Wedge (geometry) Analytical-numerical methods electromagnetic compatibility electromagnetic diffraction geometrical and uniform theory of diffraction (GTD/UTD) integral equations (IEs) isotropic media near-field interactions radar applications wedges Wiener-Hopf (WH) method Electrical and Electronic Engineering Condensed Matter Physics 0202 electrical engineering electronic engineering information engineering Propagation constant 0105 earth and related environmental sciences Mathematics Mathematical analysis 020206 networking & telecommunications Integral equation |
| Zdroj: | IEEE Transactions on Antennas and Propagation. 64:1416-1433 |
| ISSN: | 1558-2221 0018-926X |
| DOI: | 10.1109/tap.2016.2524412 |
| Popis: | Complex scattering targets are often made by structures constituted by wedges and penetrable substrates which may interact at near field. In this paper, we describe a complete procedure to study this problem with possible developments in radar technologies (like GPR), antenna development, or electromagnetic compatibility (tips near substrates). The diffraction of an incident plane wave by a perfectly conducting (PEC) wedge over a dielectric half-space is studied using generalized Wiener–Hopf equations (GWHEs), and the solution is obtained using analytical and numerical–analytical approaches that reduce the Wiener-Hopf (WH) factorization to integral equations (IEs). The mathematical aspects are described in a unified and consistent theory for angular and layered region problems. The proposed procedure is valid for the general case and the paper focuses on E-polarization at normal incidence. The solutions are given in terms of geometrical/uniform theory of diffraction (GTD/UTD) diffraction coefficients and total far fields for engineering applications. This paper presents several numerical test cases that show the validity of the proposed method. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|