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