Title : 
An Adaptive Multiple-Beam Transmitter for Satellite Communications
         
        
            Author : 
Egami, Shunichiro ; Kawai, Makoto
         
        
            Author_Institution : 
NTT Electrical Communications Laboratories Japan
         
        
        
        
        
        
            Abstract : 
A multiple-beam satellite communications system that can adaptbeam power to varying beam traffic is proposed. A new type active-array fed, single reflector antenna design and an S band, 5-beamsystem concept including interbeam exchange are described. Basedon these concepts, a high EIRP multiple-beam system with trafficadaptability similar to a single-beam system is realized.
         
        
            Keywords : 
Adaptive arrays; Antenna arrays; Artificial satellites; Phased arrays; Satellite antennas; Satellite communication; Satellite ground stations; Time domain analysis; Transmitters; Transponders;
         
        
        
            Journal_Title : 
Aerospace and Electronic Systems, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/TAES.1987.313353