Advanced Communication Technology Satellite (ACTS) multibeam antenna technology verification experiments

摘要

One of the key technologies to be validated as part of the ACTS program is the multibeam antenna with rapidly reconfigurable hopping and fixed spot beam to serve users equipped with small-aperture terminals within the coverage areas. The proposed antenna technology experiments are designed to evaluate in-orbit ACTS multibeam antenna performance (radiation pattern, gain, cross pol levels, etc.). Attention is given here to in-orbit RF antenna pattern measurements, reflector surface temperature measurements, C/N power ratio measurements, and thermal distortion analysis.