Title : 
Accuracy of a hybrid Fast Physical Optics scheme for the analysis of dual reflector antennas
         
        
            Author : 
Letrou, Christine ; Boag, Amir
         
        
            Author_Institution : 
INT/GET, Lab. SAMOVAR (CNRS UMR 5157), 9 rue Charles Fourier, 91011 Evry cedex, France
         
        
        
        
        
        
            Abstract : 
A novel hybrid Fast Physical Optics (FPO) algorithm for the analysis of dual reflector antennas is presented. A two-level FPO algorithm for the subreflector to main reflector propagation is proposed and combined with the multilevel FPO that is used for the main reflector to far-field computation. The accuracy of the proposed method is studied by comparison with the direct physical optics evaluation of the near and far fields.
         
        
            Keywords : 
Algorithm design and analysis; Antenna feeds; Antenna radiation patterns; Interpolation; Magnetic field measurement; Optical computing; Optical surface waves; Physical optics; Physics computing; Reflector antennas;
         
        
        
        
            Conference_Titel : 
Antennas and Propagation, 2006. EuCAP 2006. First European Conference on
         
        
            Conference_Location : 
Nice
         
        
            Print_ISBN : 
978-92-9092-937-6
         
        
        
            DOI : 
10.1109/EUCAP.2006.4584991