肖特基二极管整流的计算与测量
Theoretical and experimental analysis of Schottky barrier diode rectification
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摘要: 提出了改进型的肖特基二极管整流数理模型，用加速迭代法和四阶精度龙格-库塔法编制了计算程序，并结合实验测量得到了整流效率与输入功率、频率和负载等关系曲线:负载一定时，输入功率从零开始增大，整流效率先快速上升，然后上升趋势变缓；输入功率一定时，负载从零开始增大，整流效率先增大后减小，对于某一固定的输入功率，存在着一个最佳负载值；当输入功率和负载都相同时，降低工作频率，整流效率上升。型号为2DV10B的X波段管子在负载为525 W、输入功率为10 mW、频率为3.2 GHz时获得的整流效率为75.2%；频率为10 GHz时获得50.2%的效率，实验测量结果与理论分析一致。Abstract: This paper presents an improved Schottky barrier diode model, develops a computational program in which the Rung-Kutta method with 4-order accuracy and the iterative method are used, and obtains the graphics of the conversion efficiency. With the same load, as the input power increases from zero, the conversion efficiency increases fast at the lower input power level, and the diode can work at a high conversion efficiency over a broad power range. With the same input power, as the resistance increases from zero, the conversion efficiency increases to the maximum before decreasing, and each input power level corresponds to one optimum resistance. For the same input power and load, the diode conversion efficiency increases by decreasing the operating frequency. A microwave to DC conversion e
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