Abstract

A dual-band multiple beam antenna (MBA) system that is suitable for satellite communications at K/Ka-band frequencies is introduced in this paper. This antenna system employs a minimum number of reflectors, just half of conventional multiple beam antennas, because it uses a dual-band feed horn. It is shown that the antenna system can provide higher edge-of-coverage (EOC) gain and higher co-polar isolation (C/I) among beams that re-use the same frequency channels by using feed horns with high efficiency. Reflectors in this antenna system are illuminated by the mainlobe of the downlink feed single at lower frequency, while the mainlobe and first sidelobe of the uplink feed single illuminate reflectors at higher frequency so that the uplink and downlink antenna singles can cover the same cell size on the Earth.

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 call

Disclaimer: 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.