Microwave Communication Oscillators of a klystron tube are maintained By circulating bunches of electrons within the cavities. By feedback between the accelerating grid and the repeller By bunches of electrons passing the cavity grids By plate-to-cathode feedback By circulating bunches of electrons within the cavities. By feedback between the accelerating grid and the repeller By bunches of electrons passing the cavity grids By plate-to-cathode feedback 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/4 mode π mode 2π mode π/2 mode π/4 mode π mode 2π mode π/2 mode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication At what position is the input signal inserted into a traveling-wave tube? At the cathode end of the helix At the collector At the collector end of the helix At the control grid of the electron gun At the cathode end of the helix At the collector At the collector end of the helix At the control grid of the electron gun ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Microwave frequencies are normally regarded as those in the range of 1 to 100 GHz 1000 to 10,000 GHz 10 to 1000 GHz 1 to 500 MHz 1 to 100 GHz 1000 to 10,000 GHz 10 to 1000 GHz 1 to 500 MHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The highest frequency which a conventional vacuum tube oscillator can generate is not limited by the Inter-electrode capacitance Distributed lead inductance Electron transit time Degree of emission from the cathode Inter-electrode capacitance Distributed lead inductance Electron transit time Degree of emission from the cathode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Coupling into and out of a traveling-wave tube can be accompanied by a Waveguide match All of these Direct coax-helix match Cavity match Waveguide match All of these Direct coax-helix match Cavity match ANSWER DOWNLOAD EXAMIANS APP
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