I would like to experiment with an electromagnetic field that "moves" in space. By this I mean a single zone of constructive interference that shifts its position linearly within the space between two emitters such as air core coils.
Let's assume the period of one full cycle of movement is one second and the coils are driven with 100Hz sine waves. As I understand, that would mean one complete phase reversal every 100 cycles.
In terms of circuit design, can anyone please explain how to do this?
Kevin Foster