Abstract
Recent developments in electronically despun antenna techniques have made practical an order-of-magnitude increase in satellite antenna gain over that afforded by an omnidirectional antenna. It is possible to extend these techniques to achieve approximately an additional order-of-magnitude increase in satellite antenna gain. It is the purpose of the present paper to discuss the operational and system considerations involved in implementing such a satellite antenna system. The limit, beyond which these extensions are considered to be impractical because of excessive weight, control power, or complexity, is established. The beam-forming and steering operations in the despun plane are discussed, and the techniques required to obtain higher directivity are presented. It is shown that beam-forming and steering in the plane normal to the despun plane can be readily obtained by stacking of the biconical type horns previously described. Based on the various techniques described, electronically despun antenna system weight, required control power, size, and actual gain are discussed as a function of antenna beamwidth.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.