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Microwave Communication

Microwave Communication
A high-power microwave pulse of the order of megawatts can be generated by a

Traveling-wave tube
Gunn diode
Magnetron
Reflex klystron

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Microwave Communication
Coupling into and out of a traveling-wave tube can be accompanied by a

Cavity match
Direct coax-helix match
All of these
Waveguide match

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Microwave Communication
A magnetron is operated at a duty cycle of 0.001. It has a peak power output of 100 kilo-watts. Its average power is

10,000 watts
1,000 watts
1,000,000 watts
100 watts

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

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

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

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

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Microwave Communication
A traveling-wave tube (TWT) amplifies by virtue of

The energy contained the cavity resonators
The absorption of energy by the signal from an electron stream
The effect of an external magnetic field
The energy liberated form the collector

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MORE MCQ ON Microwave Communication

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