Title : 
Design and performance of a dual-reflector imaging array antenna
         
        
        
            Author_Institution : 
ERA Technology Ltd., Leatherhead, UK
         
        
        
        
        
        
            Abstract : 
A brief discussion of the operating principle of a two-dimensional configuration is detailed. A subreflector shaping technique is described which offers improved antenna aperture efficiency. Various aspects of a three-dimensional antenna are discussed, including analysis techniques, polarisation properties and sidelobe performance
         
        
            Keywords : 
antenna phased arrays; antenna radiation patterns; electromagnetic wave polarisation; microwave antenna arrays; reflector antennas; scanning antennas; analysis; antenna aperture efficiency; beam scanning applications; design; dual-reflector imaging array antenna; performance; polarisation; sidelobe; subreflector shaping; three-dimensional antenna; two-dimensional configuration;
         
        
        
        
            Conference_Titel : 
Hybrid Antennas, IEE Colloquium on
         
        
            Conference_Location : 
London