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Amlitude and phase control of superradiation pulses by the magnetic bias of saturated ferrite
2011 / IEEE / 978-1-4577-0631-8
This item was taken from the IEEE Conference ' Amlitude and phase control of superradiation pulses by the magnetic bias of saturated ferrite ' To provide controllable shortening of the cathode voltage rise time in two channels of superradiative oscillators, ferrite-loaded sections of a coaxial transmission line with a bias magnetic field were used. Saturation of the ferrites in the longitudinal direction was provided by a dc magnetic field of 50 kA/m. A nonlinear line of length 30 cm was tested. It was found that a nonlinear line not only reduces the voltage rise time, but also changes the time delay to the arrival of the voltage pulse at a tubular explosive-emission cathode. Subgigawatt X-band microwave pulses of 1 ns FWHM were produced by two relativistic BWOs operating at a low magnetic field (about 0.5 T) in corrugated slow-wave structures. The cathode voltage and the e-beam current were 330 kV and 3 kA, respectively. Conditions for coherent summation of the power radiated in vacuum by two channels have been found.
Power Transmission Lines
Pulsed Power Supplies
Relativistic Electron Beam Tubes
Slow Wave Structures
Frequency 8 Ghz To 12 Ghz
Controllable Cathode Voltage Rise Time Shortening
Coaxial Transmission Line
Bias Magnetic Field
Dc Magnetic Field
Nonlinear Line Testing
Voltage Rise Time Reduction
Tubular Explosive-emission Cathode
Subgigawatt X-band Microwave Pulses
Corrugated Slow Wave Structures
Coherent Power Summation
Voltage 330 Kv
Current 3 Ka
Backward Wave Oscillators