Technical Physics Letters · 2009 · 62 citations · 2 references
EngineeringElectrical EngineeringPhysicsCircuit TheoryPower ElectronicsHigh-frequency Power ConversionOscillatorsPower QualityTransmission LinesElectric Power TransmissionHigh-frequency ConversionHigh-frequency Magnetic ResponseHigh-frequency OperationHigh-power ElectromagneticsHigh-voltage Power SystemsHigh-voltage Transmission Lines
A new method of converting a high-voltage video pulse into high-frequency oscillations using a nonlinear transmission line with temporal dispersion has been studied. The dispersion was provided by pulsed magnetization reversal in a ferrite, which was initially magnetized to saturation in an external magnetic field. For a 9-ns pulse, an average energy conversion efficiency of about 10% was achieved. It is demonstrated that oscillations at frequencies within 600 MHz-1.1 GHz with a spectral width of about 15% (at a −3 dB level) can be excited using voltage pulses with an amplitude of 110–290 kV. The optimum bias magnetization fields are within 20–40 kA/m.
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