Title :
Effective transformation of high voltage power into high frequency oscillatons based on transmission line with saturated ferrite
Author :
Romanchenko, I.V. ; Kutenkov, V.O. ; Rostov, V.V.
Author_Institution :
Inst. of High Current Electron. SB RAS, Tomsk, Russia
Abstract :
Summary form only given. New method of high voltage power transformation into high frequency oscillations in the coaxial line with temporal dispersion is investigated. Temporal dispersion is due to pulsed magnetization switching of initially saturated with axial bias field ferrite. Pulsed magnetic field is created by high voltage nanosecond pulse propagating through the nonlinear transmission line. Subnanosecond rise time excites damped oscillations of circumferential component of magnetization and pulsed current. Effect of microwave power amplification with nonlinear transmission line elongation has been detected. Developed system seems to be an alternative to the nonlinear transmission line with spatial dispersion. For 9 ns pulse efficiency of about 10 % has been achieved. Possibility of oscillations excitation at frequencies from 600 MHz to 1.1 GHz with bandwidth of about 15 % for pulse amplitudes from 110 to 290 kV is shown. Optimal bias field conditions are found to be in the range 20-40 kA/m.
Keywords :
coaxial cables; ferrites; power transmission lines; pulsed power technology; axial bias field ferrite; coaxial line; frequency 600 MHz to 1.1 GHz; high frequency oscillations; high voltage power transformation; microwave power amplification; nonlinear transmission line; nonlinear transmission line elongation; pulsed magnetic field; pulsed magnetization switching; saturated ferrite; spatial dispersion; temporal dispersion; time 9 ns; transmission line; voltage 110 kV to 290 kV; Coaxial components; Ferrites; Frequency; Magnetic fields; Magnetic switching; Magnetization; Microwave propagation; Power transmission lines; Pulse amplifiers; Voltage;
Conference_Titel :
Plasma Science - Abstracts, 2009. ICOPS 2009. IEEE International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2617-1
DOI :
10.1109/PLASMA.2009.5227577