Szczepan Bialek wrote:

napisa? w wiadomo?ci
...

It depends on the type of antenna.

If it is a dipole, yagi, log-periodic, sturba curtain, rhombic, parabolic,
helix, loop, cubical quad, on any of many, many more types of antennas
that have no place or need to connect a ground, it would not.

Each of them has the chassis.
S*

No, they do not.

I doubt you know what the word "chassis" means.