Direct-broadcast satellite antenna designs provide contoured beams to match four time zones in 48 contiguous states and spot beams for Alaska, Hawaii, and Puerto Rico presented in 29-page report. Includes descriptions of procedures used to arrive at optimized designs. Arrangements, amplitudes, and phases of antenna feeds presented in tables. Gain contours shown graphically. Additional tables of performance data given for cities in service area of Eastern satellite.
Time-Zone-Pattern Satellite Broadcasting Antenna
NASA Tech Briefs ; 12 , 6
01.06.1988
Sonstige
Keine Angabe
Englisch
| NTIS | 1977
NTIS | 1977
| NTIS | 1970
Onboard Array-Fed Reflector Antenna for 21GHz-Band Direct Broadcasting Satellite
| British Library Conference Proceedings | 2006