The microwave antenna has a radiating portion connected by {HEAD ~ a feedline} to a power generating source, e.g., {TAIL ~ a generator} 
to
The microwave antenna has a radiating portion connected by { HEAD ~ a feedline } to a power generating source , e.g. , { TAIL ~ a generator }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL