{HEAD ~ Each feed} is coupled to a feed network which acts to combine {TAIL ~ the illumination beams} of a preselected number of feeds to produce a plurality of composite illumination beams 
{ HEAD ~ Each feed } is coupled to a feed network which acts to combine { TAIL ~ the illumination beams } of a preselected number of feeds to produce a plurality of composite illumination beams
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH