While searching for public text concerning Amateur satellites and phased array antennas, I came across this gem from our very own Tom Clark, K3IO http://mysite.verizon.net/w3iwi/electronic_scanning_antennas.pdf, "Electronic Scanning Antennas for Amateur Spacecraft". I wonder if this knowhow could be utilized for ground stations to have antennas that could rapidly switch between different birds by a software reload function and a intelligent switching matrix ?
How many of you would prefer (if a command station) to have multi-access to satellites as they pass during conjunction but use a small antenna farm selectively to access them _simultaneously_. On Thu, Oct 22, 2009 at 3:06 PM, Samudra Haque <[email protected]> wrote: > Hi, Amsat-BB > > Are there any antenna designs that use predominantly rotating > sub-reflectors and a reflector for tracking LEO birds, in contrast to > rotating the main antenna structure on booms in the AZ-EL directions ? > I am aware of multi-LNB antenna arrangements, thought it would be > interesting to find out ways to keep a fairly large reflector constant > on the ground and use a smaller steerable sub-reflector or horn feed > to aim the beam ? > > Any ideas ? > > Samudra N3RDX > _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
