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