I must be missing something. Please describe your antenna and feedline for me.
This website:
https://www.tutorialspoint.com/antenna_theory/antenna_theory_full_wave_dipole.htmSays this:
Disadvantages
The following are the disadvantages of full-wave dipole antenna.
Heat dissipation
Wastage of power
No radiation pattern
No directivity and no gain
Due to these drawbacks, the full-wave dipole is seldom used.