Abstract :
Crises change the global pattern of communication. The communications problems occur because the satellites are optimized to cover specific geographic areas, and these areas cannot be altered once the satellites are in Earth orbit. An effective solution to the problem is to equip communication satellites with "living" antennas that can adjust their radiation coverage areas according to the new demands. The development of living antennas is, therefore, among the focus areas identified and supported by the European Space Agency, ESA.
Keywords :
antenna radiation patterns; multibeam antennas; reflector antennas; satellite antennas; satellite communication; ESA; Earth orbit; European Space Agency; communication satellites; geographic areas; living antennas; radiation coverage areas; reconfigurable multibeam antenna; reflector antenna; Adaptive arrays; Antenna feeds; Array signal processing; Artificial satellites; Horn antennas; Receiving antennas; Reflector antennas; Satellite antennas; Shape; Switches;