本发明公开了一种双极型晶体管参数提取方法及其等效电路。该方法先对双极型晶体管进行直流测试和S参数测试，然后应用ADS软件和origin软件进行曲线拟合，得到双极型晶体管的参数。基于双极型晶体管参数提取方法所建立的等效电路包括三个电感、五个电容、六个电阻和本征模块BJT，本征模块BJT包括两个电阻、三个电荷控件、三个电流控件。本发明的方法可用于建立适用于不同情况电路的双极型晶体管等效电路，同时还可用于建立适用于高频电路的双极型晶体管等效电路。基于本发明方法建立的双极型晶体管等效电路能反映双极型晶体管一组工作点的器件特性，可用于不同情况的电路仿真；本发明的等效电路能反映双极型晶体管的高频特性，可用于高频电路仿真。
【 英文摘要 】The invention discloses a method for extracting parameters of a bipolar transistor and an equivalent circuit of the bipolar transistor. The method comprises the following steps : performing direct current test and S parameter test on the bipolar transistor; and performing curve fitting by use of ADS (Application Development System) software and origin software so as to acquire parameters of the bipolar transistor. The equivalent circuit established based on the method for extracting the parameters of the bipolar transistor comprises three inductors, five capacitors, six resistors and an intrinsic module BJT (Bipolar Junction Transistor), wherein the intrinsic module BJT comprises two resistors, three charge controls and three current controls. The method can be used for establishing bipolar transistor equivalent circuits suitable for circuits in different conditions, and also can be used for establishing the bipolar transistor equivalent circuit for high-frequency circuits. The bipolartransistor equivalent circuit established based on the method can reflect the device characteristics of a group of working points of the bipolar transistor, and can be used for circuit simulation of different situations; and the equivalent circuit can reflect the high frequency characteristic of the bipolar transistor, and can be used for high frequency circuit simulation.
