ge xingjun, zhong huihuang, qian baoliang, et al. Influence of inner-conductor radius on operation frequency of coaxial relativistic backward wave oscillator[J]. High Power Laser and Particle Beams, 2010, 22.
Citation:
ge xingjun, zhong huihuang, qian baoliang, et al. Influence of inner-conductor radius on operation frequency of coaxial relativistic backward wave oscillator[J]. High Power Laser and Particle Beams, 2010, 22.
ge xingjun, zhong huihuang, qian baoliang, et al. Influence of inner-conductor radius on operation frequency of coaxial relativistic backward wave oscillator[J]. High Power Laser and Particle Beams, 2010, 22.
Citation:
ge xingjun, zhong huihuang, qian baoliang, et al. Influence of inner-conductor radius on operation frequency of coaxial relativistic backward wave oscillator[J]. High Power Laser and Particle Beams, 2010, 22.
The dispersion curves of the coaxial slow-wave structure (SWS) with the trapezoidal corrugation are obtained by numerical calculation. The electric field vector of π mode of the quasi-TEM mode and the influence of the inner-conductor radius on resonance frequency are calculated using the electromagnetic software Superfish. In addition, a compact L-band relativistic backward wave oscillator (RBWO) is investigated and optimized in detail with particle-in-cell (PIC) methods (Karat code) to explain effects of the inner-conductor radius. In experiment, the operation frequencies are 1.64 GHz, 1.63 GHz and 1.61 GHz when the inner-conductor radii are 0.50 cm, 0.75 cm and 1.00 cm respectiuely, which shows that the operation frequency decreases with the enlargement of the inner-conductor radius. T
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