A hollow rectangular waveguide has dimensions a = 2b. Calculate the amount of attenuation, if the frequency is 3 GHz, and b = 1 cm.

1.

A hollow rectangular waveguide has dimensions a = 2b. Calculate the amount of attenuation, if the frequency is 3 GHz, and b = 1 cm.

[A].	49
[B].	47.33
[C].	50.33
[D].	50

Answer: Option B

Explanation:

213-187-1

Since, wave is attenuated hence β = 0

and 213-187-2 Take, dominant mode m = 1,

n = 0

213-187-3

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