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本文描述了注入式正交场放大管的设计和工作原理;该管采用栅控形式和紧凑的永磁聚焦结构,在倍频程内获得高效率的放大。文中详细地描述了为达到倍频程带宽所要求的低色散和高互作用阻抗而使用的介质支撑曲折线。为使设计最佳化,文中还探讨了空间电荷、增益因子、电子注阻抗、线路损耗和线路尺寸之间的相互关系。该管采用负栅电子枪,它能有效地控制电子注电流从零连续地调到工作值。电子枪的负栅犹如非截获电流的控制电极一样,能抑制噪声。生产的正交场放大管的工作特性将脉冲峰值功率高达5千瓦,平均功率或连续波输出功率1千瓦,这是采用低电压栅控可以实现固有的多模工作特性的例证。
This article describes the design and operation of an injection quadrature field-amplifier tube that uses a gated form and a compact permanent-magnet focusing structure to achieve high-efficiency amplification in the octave. The media support zigzag lines used to achieve the low dispersion and high interaction impedance required for octave bandwidth are described in detail. In order to optimize the design, the paper also discusses the relationship between space charge, gain factor, electronic impedance, line loss and line size. The tube with a negative gate electron gun, it can effectively control the electronic injection current continuously transferred from zero to the work value. The negative gate of an electron gun acts like a non-intercepting current control electrode to suppress noise. The operating characteristics of the quadrature field-amplifier tube produced will pulse peak power of up to 5 kilowatts, average power or continuous wave output power of 1 kilowatt, which is an example of the inherent characteristics of multimode operation using low voltage gating.