Title :
Stationary phase method for far-field computation of defocused reflector antennas
Author :
Herben, M.H.A.J. ; Middelkoop, R. ; Gielkens, F.J.J.
Author_Institution :
Eindhoven University of Technology, Telecommunications Group, Department of Electrical Engineering, Eindhoven, Netherlands
Abstract :
Computation of the far field of a defocused reflector antenna using the stationary phase method is described. The positions of the stationary phase points are determined, to eliminate one of the two numerical integrations of the radiation integral. Examples of scan patterns and computational time saving are presented.
Keywords :
antenna radiation patterns; antenna theory; reflector antennas; computational time saving; defocused reflector antenna; far field; numerical integrations; radiation integral; scan patterns; stationary phase method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800363
