The resonant frequency of a cavity resonator depends upon
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ECE · all questionsMicrowave Communication
Microwave Communication
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In microwave transmission using digital radio, what causes most intersymbol interference?
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The cavity resonator
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What ferrite device can be used instead of duplexer of isolate microwave transmitter and receiver when both are connected to the same antenna?
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At what position is the input signal inserted into a traveling-wave tube?
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What is the purpose of the electromagnetic field which surrounds a traveling-wave tube?
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The Gunn diode oscillator
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In a radar-set receiver, the usual mixer stage is
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Theoretically electromagnetic radiation field strength varies in inverse proportion to the square of the distance, but when atmospheric attenuation effects and the absorption of the terrain are taken into account the attenuation can be as high as the inverse ___________ power of the distance.
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A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the
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Which one of the following is a negative differential resistance diode?
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A TEM mode transmission line is having distributed circuit parameters as R = 1 ohm/m, L = 200 nH/m, G = 300 µS/m, C = 60 pF, the line is:
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The given equivalent circuit belongs to:
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Wavelength of the visible light extends from
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The microwave tube that uses buncher and catcher cavities is
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The negative resistance of the tunnel diode occurs when the bias voltage is
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When microwave signals follow the curvature of the earth, this is known as-
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In a reflex klystron, the velocity modulation
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Electric Field and Magnetic Field are perpendicular to each other in:
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What is range of UHF?
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