ECE :: Microwave Communication
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Most electromagnetic transmission in rectangular wave-guide uses
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Loading of a line means
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The frequency of oscillations obtained from a reflex klystron depends mainly on
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The main advantage of TWT over klystron is
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In a TWT the phase velocity of the axial component of the field on the slow wave structure is kept
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Assertion (A): Two equal and opposite travelling waves result in a standing wave.
Reason (R): The ratio of maximum to minimum value of a standing wave is called SWR.
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When a wave reaches an open circuit
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Assertion (A): In circular waveguide the attenuation of TE01 mode decreases as the operating frequency increases.
Reason (R): The wall currents in a circular waveguide in TEQ1 mode are completely circumferential.
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Consider the following statements
- Usable bandwidth of ridge wave guide is more than that of rectangular waveguide.
- For a given value of TM10 cutoff frequency the cross section of ridge wave guide is lesser that that of rect angular waveguide.
- Ridge wave guide has higher conductor losser than a rectangular waveguide.
- Ridge guide has higher conductor losser than a rectangular waveguide.
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