Question: For a rectangular waveguide with dimensions of 20 mm x 4 mm a) Find the wavenumber (phase constant) corresponding to the dominant TE mode.

For a rectangular waveguide with dimensions of 20 mm x 4 mm a) Find the wavenumber (phase constant) corresponding to the dominant TE mode. b) Find the wavelength of the wave for the dominant TE mode. c) Write the expressions for E, and H. components for the dominant TE mode if propagation is along the z axis. d) What is the lowest frequency that can propagate inside the waveguide for TE23 mode?

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