ECE :: Microwave Communication
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In a klystron amplifier the transit time of electron passing the gap in the cavity should be
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In a cable with ∈r = 4, the wave velocity is
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In a backward wave oscillator the efficiency
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Consider the following statements
- Fading of signals is generally greatest near radio horizon.
- Fading of signals is generally greatest in shadow zone.
- Fading is small when a good optical path is present.
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The use of coaxial microwave line should be restricted to frequencies
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Generally the wall thickness of rectangular waveguide is
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If QL is loaded Q, QE is external Q and QU is unloaded Q of a microwave resonator, then
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