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Microwave Communication

Microwave Communication
Microwave frequencies are normally regarded as those in the range of

1000 to 10,000 GHz
10 to 1000 GHz
1 to 500 MHz
1 to 100 GHz

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Microwave Communication
Klystron oscillators are most often used in the frequency range of

3000 to 30000 MHz
30 to 30000 MHz
10 to 10000 MHz
300 to 3000 MHz

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Microwave Communication
If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the

π mode
2π mode
π/2 mode
π/4 mode

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Microwave Communication
In microwave transmission using digital radio, what causes most intersymbol interference?

Slow fading
Random Doppler shift
Delayed spreading
Rayleigh fading

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Microwave Communication
What is the purpose of the electromagnetic field which surrounds a traveling-wave tube?

To keep the electrons from spreading out
To slow down the signal on the helix
To accelerate the electron
To velocity modulate the electron beam

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Microwave Communication
The highest frequency which a conventional vacuum tube oscillator can generate is not limited by the

Electron transit time
Degree of emission from the cathode
Distributed lead inductance
Inter-electrode capacitance

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MORE MCQ ON Microwave Communication

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