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提出了虚阴极振荡器（Ｖｉｒｃａｔｏｒ）一种新的物理模型，用自己编写的两维半、全电磁、相对论性的粒子模拟程序ＷＧＣＦ模拟了两个对称虚阴极互相耦合振荡产生高功率微波（ＨＰＭ）的物理过程，激发的柱面波横向３６０°引出。通过大量的计算（包括单束情况）表明：（１）极距ｄ不变时，无论双束还是单束，比值Ｊ＿０／Ｊ＿ｃ在１２～２之间效率较高；（２）Ｊ＿０／Ｊ＿ｃ不变时，极距ｄ有一最佳值，大于或小于此值时效率略降低；（３）双束情况输出波型较纯净，无“直流”分量，单束情况却不然；（４）双束时频率增宽；（５）与一维情况不同，Ｊ＿０≈Ｊ＿ｃ时也会发生振荡，但直流成分较大。此外，我们对横向外边界的透射边界条件和辐射功率按模式、频率分布的表达式进行了推导。
A new physical model of the virtual cathode oscillator (Vircator) is proposed. The two-dimensional semi-electromagnetic and relativistic particle simulation program WGCF is used to simulate the interaction of two symmetric virtual cathodes to produce high power microwave (HPM ) Of the physical process, the excited cylindrical wave 360 ° horizontal lead. Through a large number of calculations (including the case of a single beam), it is shown that: (1) when the polar distance d is constant, the ratio J_0 / J_c is more efficient between 12 and 2, regardless of the double beam or the single beam; (2) J_0 / J_c is not (3) Double-beam output waveform is purer, no “DC” component, single-beam case is not; (4) Double-beam (5) Different from one-dimensional case, oscillation will occur when J_0≈J_c, but the DC component is larger. In addition, we derive the transmissivity boundary conditions and radiant power of transverse lateral boundaries according to the expression of mode and frequency distribution.