Abstract
The proliferation of planar phased array antennas that communicate with Low Earth Orbit (LEO) satellite constellations has unveiled potential measurement differences between fixed beam and scanning phased array antennas for assessing the time-averaged power density. Communicating with LEO satellites requires constant beam movement so exposure changes with time. Additionally, communications arrays, following Satellite Earth Stations and Systems (SES) regulations, are required to not transmit unless they are receiving enabling commands from a satellite - so blockages that stop communication and transmissions further reduce time-averaged power flux. These complex RF pattern, pointing and operational modes leads to a proposed introduction of a spatial duty cycle that weighs time-averaged power density by the proportion of time the beam is on a target area. This paper presents a method to characterize the time-average power density and exposure from electrically large-phased arrays used for commercial LEO satellite communications in the near- and far-field.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
