Microwave Communication In a radar-set receiver, the usual mixer stage is A Rochelle salts crystal A tunnel diode And FET A silicon crystal A Rochelle salts crystal A tunnel diode And FET A silicon crystal 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 10,000 watts 1,000,000 watts 100 watts 1,000 watts 10,000 watts 1,000,000 watts 100 watts 1,000 watts ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If the duration of the radar transmitted pulse, on a particular range of operation, is increased, the required bandwidth of the receiver’s IF amplifiers Must be doubled Must be increased May be decreased Must remain as before Must be doubled Must be increased May be decreased Must remain as before ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What ferrite device can be used instead of duplexer of isolate microwave transmitter and receiver when both are connected to the same antenna? Isolator Circulator Simplex Magnetron Isolator Circulator Simplex Magnetron 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 dimension of each cavity resonator The ratio of the dc cathode voltage to the magnetic flux density The flux density of the external magnet The number of the cavity resonators The dimension of each cavity resonator The ratio of the dc cathode voltage to the magnetic flux density The flux density of the external magnet ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The cavity resonator In a reflect klystron has its output taken from the reflector plate Produces a frequency which is independent of the cavity size. Is equivalent to an LC resonant circuit Has a low Q factor for narrow operation. In a reflect klystron has its output taken from the reflector plate Produces a frequency which is independent of the cavity size. Is equivalent to an LC resonant circuit Has a low Q factor for narrow operation. ANSWER DOWNLOAD EXAMIANS APP
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