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/2 mode π/4 mode 2π mode π mode π/2 mode π/4 mode 2π mode π mode ANSWER DOWNLOAD EXAMIANS APP
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 1,000,000 watts 100 watts 1,000 watts 10,000 watts 1,000,000 watts 100 watts 1,000 watts 10,000 watts ANSWER DOWNLOAD EXAMIANS APP
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 velocity modulate the electron beam To accelerate the electron To keep the electrons from spreading out To slow down the signal on the helix To velocity modulate the electron beam To accelerate the electron ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Microwave frequencies are normally regarded as those in the range of 10 to 1000 GHz 1000 to 10,000 GHz 1 to 500 MHz 1 to 100 GHz 10 to 1000 GHz 1000 to 10,000 GHz 1 to 500 MHz 1 to 100 GHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Calculate the effective earth’s radius if the surface refractivity is 301. 8493 mmi 6370 mi 6370 km 8493 km 8493 mmi 6370 mi 6370 km 8493 km ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The frequency of the oscillation generated by a magnetron, is mainly determined by The number of the cavity resonators The ratio of the dc cathode voltage to the magnetic flux density The dimension of each cavity resonator The flux density of the external magnet The number of the cavity resonators The ratio of the dc cathode voltage to the magnetic flux density The dimension of each cavity resonator The flux density of the external magnet ANSWER DOWNLOAD EXAMIANS APP
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