Title :
Advanced Communication Technology Satellite (ACTS) multibeam antenna technology verification experiments
Author :
Acosta, R.J. ; Larko, J. ; Lagin, A.R.
Author_Institution :
NASA Lewis Res. Center, Cleveland, OH, USA
Abstract :
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.<>
Keywords :
aerospace testing; antenna radiation patterns; antenna testing; reflector antennas; satellite antennas; ACTS; Advanced Communication Technology Satellite; C/N power ratio measurements; RF antenna pattern measurements; coverage areas; cross pol levels; fixed spot beam; gain; in-orbit performance; multibeam antenna; radiation pattern; reconfigurable hopping beams; reflector surface temperature measurements; small-aperture terminals; thermal distortion analysis; verification experiments; Antenna measurements; Antenna radiation patterns; Artificial satellites; Communications technology; Distortion measurement; Performance gain; Power measurement; Radio frequency; Reflector antennas; Temperature measurement;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221561
