Title : 
Theoretical comparison of crosspolar performance of dielectric and corrugated feeds
         
        
            Author : 
Clarricoats, P.J.B.
         
        
            Author_Institution : 
Queen Mary College, Department of Electrical & Electronic Engineering, London, UK
         
        
        
        
        
        
        
            Abstract : 
The crosspolar properties of dielectric and corrugated feeds are compared, subject to approximations which are valid for narrow flare angles and large apertures. Whereas the cross-polar radiation from a corrugated feed has a resonant frequency dependence, that for a dielectric feed is only weakly dependent upon frequency.
         
        
            Keywords : 
antenna feeders; waveguide antennas; antenna feeders; corrugated feeds; crosspolar radiation; dielectric feeds; frequency dependence; waveguide antennas;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19810224