Title :
Convergence of physical optics integrals by Ludwig´s technique
Author :
Parkinson, J.R. ; Mehler, M.J.
Author_Institution :
University of Birmingham, Department of Electronic & Electrical Engineering, Birmingham, UK
Abstract :
The convergence properties of Ludwig´s integration technique are investigated, when applied to physical optics (PO) analysis. It is demonstrated that the rate of convergence is sensitive to the choice of integration grid co-ordinate system. Examples of PO analysis applied to paraboloidal and ellipsoidal reflectors show the reduction in computation time achievable when using a cartesian integration grid rather than a polar grid.
Keywords :
antenna theory; convergence; physical optics; reflector antennas; Ludwig´s integration technique; cartesian grid; computation time; convergence rate; ellipsoidal reflectors; integration grid co-ordinate system; parabaloidal reflectors; physical optics integrals; polar grid; reflector antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860795
