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6 A 5 GHz signal is to be propagated in the dominant mode TE10 in a...

6 A 5 GHz signal is to be propagated in the dominant mode TE10 in a rectangular waveguide. If its group velocity is to be 90% of that of light. As engineer suggest i. What must be the dimensions of the waveguide (assume the standard waveguide)? ii. What impedance will the waveguide present to this signal if it is correctly matched?

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