Microwave Communication Oscillators of a klystron tube are maintained By plate-to-cathode feedback By circulating bunches of electrons within the cavities. By bunches of electrons passing the cavity grids By feedback between the accelerating grid and the repeller By plate-to-cathode feedback By circulating bunches of electrons within the cavities. By bunches of electrons passing the cavity grids By feedback between the accelerating grid and the repeller ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What do you call an attenuation that occurs over many different wavelengths of the carrier? Rayleigh fading Slow fading Wavelength fading Rician fading Rayleigh fading Slow fading Wavelength fading Rician fading ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Rainfall is an important factor for fading of radio waves at frequencies above 1 GHz 100 MHz 10 GHz 100 GHz 1 GHz 100 MHz 10 GHz 100 GHz ANSWER DOWNLOAD EXAMIANS APP
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 2π mode π/4 mode π mode π/2 mode 2π mode π/4 mode π mode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as an oscillator device in the SHF band? Klystron tube Tunnel diode Both B and C Thyratron tube Klystron tube Tunnel diode Both B and C Thyratron tube ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The resonant frequency of a cavity resonator depends upon The mode of operation The capacitor which tunes it Its physical dimensions Its electrical dimensions The mode of operation The capacitor which tunes it Its physical dimensions Its electrical dimensions ANSWER DOWNLOAD EXAMIANS APP
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