Open AccessConvergence and accuracy of near‐field‐corrected iterative physical optics for scattering by imperfectly conducting and dielectric objects
Author(s) -
Rim JaeWon,
Koh IlSuek
Publication year - 2020
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2019.0871
Subject(s) - physical optics , convergence (economics) , dielectric , iterative method , optics , scattering , field (mathematics) , physics , acoustics , computer science , mathematics , algorithm , optoelectronics , pure mathematics , economics , economic growth
This communication investigates the convergence behaviour and accuracy of a near‐field corrected iterative physical optics scheme for scatterings by imperfectly conducting and dielectric objects. The scatterings by large and complex impedance surface bodies such as fixed wing aircraft, rotatory wing aircraft, tank, vessel, and boat are computed and compared with those of a full‐wave method. Several RF characteristics of a Von‐Karman radome are also analysed and compared as a wave penetration application. Based on these comparisons, the near‐field correction effect is examined on the accuracy of the iterative physical optics scheme.