SHAO Jian-bo, XIE Hong-quan, LI Zheng-hong, et al. Study of a Ku-Band Backward Wave Oscillator Characteristics with Low Magnetic Field of 0.3T[J]. Acta Electronica Sinica, 2016, 44(9): 2057-2061.
SHAO Jian-bo, XIE Hong-quan, LI Zheng-hong, et al. Study of a Ku-Band Backward Wave Oscillator Characteristics with Low Magnetic Field of 0.3T[J]. Acta Electronica Sinica, 2016, 44(9): 2057-2061. DOI: 10.3969/j.issn.0372-2112.2016.09.005.
In order to realize the relativistic backward wave oscillator(RBWO) permanent magnet packaging
simulation software Magic is used and based on the structure of the relativistic backward wave oscillator(RBWO) with low magnetic field of 0.5T
through adding a partially reflecting cavity at the end of the device's slow wave structure to reduce the effect of the quality of electron beam on the beam-wave conversion
that is
to reduce the effect of guiding magnetic field
so this paper realized the Ku band relativistic backward wave oscillator normal operation at 0.3T.When the electron beam is 600kV and the beam current is 7kA
the output microwave power of 740MW and the efficiency of 18% are obtained in the simulation software Magic.Although the efficiency of the RBWO at 0.3T is lower than that at 0.5T(25%)
guiding magnetic field of 0.3T is easier to realize in engineering.Experiment on the miniaturization of pulse power source
when the diode is 580kV and the beam is 6.5kA
achieves output power of 600MW and the frequency of 13.10 GHz with the corresponding pulse width of 25ns.