I am having trouble reconciling the descriptions I have read of how antennas work to recieve and transmit radiation.
My simple understanding is that in recieveing the oscilating electric field of an EM wave causes the electrons in the antenna wire to oscilate producting an AC current.
On the other hand in transmiting and AC current is aplied to the wire and the osciations of electrons in the wire create an oscilating electric field which leaves the antenna as an EM wave.
If these two processes are happening simultaniously (ie EM wave incuces AC current which creates EM wave) how can an antenna "keep hold of" any of the energy it recieves as EM radiation?