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