When radio waves impinge upon a conductor , they couple to the conductor , travel along it .
When radio waves impinge upon a conductor , they induce an electric current on the conductor surface by moving the electrons of the conducting material in correlated bunches of charge .
When radio waves impinge upon a conductor , they couple to the conductor , travel along it and induce an electric current on the conductor surface by moving the electrons of the conducting material in correlated bunches of charge .