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TM1 Mode of a Planar Waveguide |
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| For this TM1 waveguide mode, it is the magnetic field that is always transverse to the direction of propagation. |
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| Notes: |
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- The velocity of propagation in the waveguide for the TM1 mode is identical to the TE1 mode.
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- The tangential electric field is zero on the top and bottom plates. The normal component of the field is non-zero, which is not a violation of our boundary conditions. On a perfect electric conductor, charges will flow along the surfaces to cancel the electric flux into the conductor.
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- In the middle of the waveguide, the E-field is perfectly aligned with the direction of propagation. Elsewhere, it swirls around in a circle.
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