Re:I have no idea... (Score 1)

and the electric fields associated with the radio waves would amount to millions of volts per meter

If you could by some means focus all this RF power on a volume of air the size of one wavelenght, and the voltages work up to the many-mV/m range, you'd be mostly ionizing air.

I guess this would result in a very spectacular lightshow, and a missile could be severely damaged by both EM radiating from the discharge in mid air and the heat it delivers to that air.

However, I don't think that there is any feasible way to concentrate RF energy to a space the size of a wavelenght at any serious distance (i.e. over 100s of waveleghts away).