Abstract: The effects of bipolar flow on the performance of planar diode are analyzed and simulated by a PIC code.The effects of bipolar flow in an MILO device with radial emission are simulated.

• 摘 要： 分析讨论了双极性流对平面二极管发射电流的影响，并利用PIC程序对平面二极管中的双极性流问题进行了数值对比。