Reflection in a hollow metal waveguide

[fisico30]

reflection in a hollow metal waveguide...

Hello Forum,

when an electromagnetic wave hits a conducting surface there are surface currents generated on the surface itself. These currents are the result of the interaction between the field and the metal. Do these currents radiate their own electromagnetic field? Is that how reflection occurs, i.e. these currents re-radiate a field after an incident field caused them?

thanks
fisico30

 

[johnbbahm]

I have not worked in this area for many years, but the portion of the wave less than the angle of total reflection will travel down the tube with little loss. That portion of the wave striking the wall at a greater angle will fall into the reflected, transmitted or absorbed category. Some of the high angle energy will make it out of the tube, but will have traveled further than the efficient angles. This will result in some pulse distortion.