Title :
Full wave analysis of periodic and random surface distortions on reflector antennas
Author :
Pavlovic, Milos S. ; Milosevic, Tomislav S. ; Kolundzija, Branko M.
Author_Institution :
WIPL-D d.o.o., Belgrade, Serbia
Abstract :
The focus of this paper is to present full wave analysis of periodic and random surface distortions on reflector antennas. Three models of distortions are used - random distortion, one dimensional cosine and two dimension cosine distortion. Also, in order to compare results, reflector with ideally flat surface was used as referent model. In this paper, the distorted reflector surface points are approximated by summing two components: an undistorted (ideal) surface component and a surface error component. For each case, radiation patterns of the reflector are simulated and influence to main lobe and grating lobe is observed for reflector antennas up to 200 wavelengths in diameter by using an efficient MoM 3D solver.
Keywords :
method of moments; reflector antennas; full wave analysis; one dimensional cosine distortion; periodic surface distortions; random distortion; random surface distortions; reflector antennas; surface component; surface error component; two dimension cosine distortion; Brain modeling; Moment methods; Reflector antennas; Rough surfaces; Surface roughness; Surface waves; Method of Moments; Reflector surface; WIPL-D; distortion;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996436
