Title : 
Wideband Constant Beamwidth Horn Antenna
         
        
            Author : 
Dewey, R.J. ; Hill, R.
         
        
            Author_Institution : 
Philips Research Laboratories, Redhill, Surrey, England RH1 5HA
         
        
        
        
        
        
            Abstract : 
Work is reported on the development of a new wide band H-plane sectoral horn antenna which is not subject to the usual l/f variation of beamwidth with frequency. The upper frequency limit of wide band horn operation is dictated by the onset of TE30 mode in the horn feeder and throat. A compensating moding device in the feeder is optimised so that operation over greater than 3:1 bandwidths can be obtained.
         
        
            Keywords : 
Antenna feeds; Azimuth; Broadband antennas; Frequency; Horn antennas; Microwave antennas; Receiving antennas; Reflector antennas; Satellite antennas; Wideband;
         
        
        
        
            Conference_Titel : 
Microwave Conference, 1981. 11th European
         
        
            Conference_Location : 
Amsterdam, Netherlands
         
        
        
            DOI : 
10.1109/EUMA.1981.332980