1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Force felt by plates in a waveguide

  1. Nov 8, 2011 #1
    1. The problem statement, all variables and given/known data

    A TE_10 mode is propagating in a rectangular waveguide along the z-axis. If the waveguide is terminated with a perfectly conducting metal plate normal to the z-axis, then 100% of the electromagnetic radiation propagating in the guide will be reflected by the metal plate. If the dimensions of the guide are a by b with the cutoff frequency ω_c = cπ/a,

    1) what is the force felt by the metal plate due to the reflected radiation?
    2) if instead of a metal plate, a resistive plate which absorbed 100% of the incident radiation were used, what would be the force experienced by this resistive plate?

    2. Relevant equations

    F = q(E + v x B) ??



    3. The attempt at a solution

    For TE_10, B_z = B_o*cos(πx/a)??
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?