The present disclosure relates to {TAIL ~ antennas} for wireless communications devices, and particularly, to {HEAD ~ antennas} having parameters tunable to optimize performance 
The present disclosure relates to { TAIL ~ antennas } for wireless communications devices , and particularly , to { HEAD ~ antennas } having parameters tunable to optimize performance
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH