# An air-filled rectangular waveguide operates at 40 GHz. If the cutoff frequency of the TE 12 mode is 25 GHz, calculate the wavelength, phase constant, phase velocity, and intrinsic impedance of this mode.

An air-filled rectangular waveguide operates at 40 GHz. If the cutoff frequency of the TE_{12} mode is 25 GHz, calculate the wavelength, phase constant, phase velocity, and intrinsic impedance of this mode.

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**12**Section: Problems

Problem: 8

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