Antenna cluster for spacecraft high effective isotropic radiated power (EIRP)
The results of a trade study comparing the single-antenna approach with the antenna-cluster approach are given, using a cluster of four antennas. The system architecture and the high-EIRP cluster concept are described. Advantages pf the cluster concept over a single antenna include electronic beam steering, reduced antenna mass, higher antenna efficiency, lower point density in the transmit system components, spatial power combing and graceful degradation.