題組內容
4. The cutoff frequency of the mode of a rectangular waveguide (with dimensions a and b) is
m or n= 0, 1,2..., for
modes (but not both 0) and m or n = 1 , 2..., for
modes.
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4. The cutoff frequency of the mode of a rectangular waveguide (with dimensions a and b) is
m or n= 0, 1,2..., for modes (but not both 0) and m or n = 1 , 2..., formodes.