Title : 
Communications: Spot beams promise satellite communication breakthrough: Focused antenna beams with frequencies accessed by time division can mean higher uplink power and more powerful communication service
         
        
        
            Author_Institution : 
Bell Labs., Holmdel, NJ, USA
         
        
        
        
        
        
        
            Abstract : 
A technique has been found that uses TDMA to provide high antenna gain over a wide area of coverage. This scanning spot-beam antennas technique provides higher uplink power and more powerful communication service.
         
        
            Keywords : 
satellite links; scanning antennas; time division multiplexing; TDMA; antenna coverage; antenna gain; satellite links; scanning spot beam antenna; Earth; Gain; Satellite antennas; Satellite broadcasting; Satellites; Time division multiple access;
         
        
        
            Journal_Title : 
Spectrum, IEEE
         
        
        
        
        
            DOI : 
10.1109/MSPEC.1978.6367869