Q. Microwave signals follow the curvature of the earth and the phenomenon

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Q. Broadcasting antennas are generally

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Q. A transmission line has characteristics impedance of (75 + j 0.01) Ω and is terminated in a load impedance of (70 + j 50) Ω. The reflection coefficient will be

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Q. Which of the following term does not apply to the Yagi-Uda array?

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Q. The discone antenna is

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Q. If a EM wave propagating in z direction then

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Q. The thin parallel wires are carrying current along the same direction. The force experienced by one due to the other is

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Q. Mutual impedance is not depend upon

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Q. The dimension of flux density is

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Q. For TE or TM modes of propagation in bounded media, the phase velocity is

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Q. Frequencies in the UHF range propagate by means of

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Q. Intrinsic or characteristic impedance of free space has a value of

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Q. Which one is not correct for folded dipole antenna?

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Q. For VLF antennas radiation resistance is usually of the order of

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Q. The attenuation factor in parallel plane guides is given by

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Q. Which of the following relations is incorrect?

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Q. An antenna array pattern is to used for increasing

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Q. MUF is given by

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Q. A waveguide behave as

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Q. Radar antennas are usually

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