{HEAD ~ The two symmetrical feed points} 21 and 22 are driven in a balanced manner by {TAIL ~ the IFF strip line power divider} 13 through transmission lines 19 and 20 
are driven by
{ HEAD ~ The two symmetrical feed points } 21 and 22 are driven in a balanced manner by { TAIL ~ the IFF strip line power divider } 13 through transmission lines 19 and 20
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH