Question

Evanesent mode in waveguide in which the dielectric material is housed

Answer 1

✔Signals can progress along a waveguide using a number of modes.

✔However the dominant mode is the one that has the lowest cut-off frequency.

✔ For a rectangular waveguide, this is the TE10 mode.

✔ The TE means transverse electric and indicates that the electric field is transverse to the direction of propagation.