Szczepan Bialek wrote:
Somebody wrote here that the current radiate.

In all AC circuits the same current if flowing in the live conductor and in
the ground (return).

Can 0V radiate?

That is why it only radiates when the currents do not flow in the
opposite direction!

So, a balanced feeder line with two parallel wires carrying the HF current
(in opposite directions) does not radiate.

But in a dipole antenna, the currents in the two wires do flow in the
same direction. So a dipole radiates.