论文标题
高功率向后波振荡器的线性梁管中的脱落式异常
Exceptional Point of Degeneracy in Linear-Beam Tubes for High Power Backward-Wave Oscillators
论文作者
论文摘要
摘要在与电磁（EM）引导模式相互作用的电子束制成的系统中诱导了一个异常的变性点（EPD）。这使后向波振荡器（BWOS）具有退化同步状态，其中电子束通过分布式功率提取为EM模式提供分布式增益。电流粒子中的粒子模拟结果表明，在EPD上运行的BWO具有起始振荡电流，该电流正常地缩放到长时间相互作用长度的非变化值，因此与标准BWOS相比，在任意较高的发电水平上具有更高的功率转换效率。
Abstract An exceptional point of degeneracy (EPD) is induced in a system made of an electron beam interacting with an electromagnetic (EM) guided mode. This enables a degenerate synchronous regime in backward wave oscillators (BWOs) where the electron beams provides distributed gain to the EM mode with distributed power extraction. Current particle-in-cell simulation results demonstrate that BWOs operating at an EPD have a starting-oscillation current that scales quadratically to a non-vanishing value for long interaction lengths and therefore have higher power conversion efficiency at arbitrarily higher level of power generation compared to standard BWOs.
