Standard air-filled rectangular waveguides of dimensions a = 2.29 cm and b = 1.02 cm are designed for radar applications. It is desired that these waveguides operate only in the dominant TE 10 mode with the operating frequency at least 25% above the cutoff frequency of the TE 10 mode but not higher than 95% of the next higher cutoff frequency. The range of the allowable operating frequency f is

Correct Answer is : 8.19 GHz ≤ f ≤ 12.45 GHz

GATE Electronics and Communications (EC) 2017 Shift 2 Solved Paper

Question : 64 of 65

Marks: +1, -0

Standard air-filled rectangular waveguides of dimensions a = 2.29 cm and b = 1.02 cm are designed for radar applications. It is desired that these waveguides operate only in the dominant TE₁₀ mode with the operating frequency at least 25% above the cutoff frequency of the TE₁₀ mode but not higher than 95% of the next higher cutoff frequency. The range of the allowable operating frequency f is

8.19 GHz ≤ f ≤ 13.1 GHz
8.19 GHz ≤ f ≤ 12.45 GHz
6.55 GHz ≤ f ≤ 13.1 GHz
1.64 GHz ≤ f ≤ 10.24 GHz

Validate

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