ECE :: Electromagnetic Field Thoery
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When the phase velocity of an EM wave depends on frequency in any medium the phenomenon is called
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The main disadvantage of the two-hole directional coupler is
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The radiation pattern of a parabola antenna is
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In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include
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Due to which of the following reasons a lightning conductor on top of a building is made into a pointed spike?
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The virtual height of an ionospheric layer is __________ true height
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The divergence of a vector is a scalar, while the curl of a vector is another
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An open wire transmission line having a characteristic impedance of 600 ohms is terminated by a resistive load of 900 Ω. The standing wave ratio will be
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The skip distance is the maximum distance upto which ionospheric reflection is possible.
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