Multisim仿真软件在高频电子线路教学中的应用与探讨

Application of Multisim in high-frequency electronic circuit teaching

高频电子线路课程教学存在抽象、枯燥、学生参与的积极性不高的问题。对现有的教学现状进行改革,把Multisim仿真软件引入高频电子线路教学,列举了单失谐鉴频电路仿真实例,通过不断改变电路元件参数,并进行对比分析感性失谐和容性失谐波形的特点,以及二极管包络检波器正常检波情况、惰性失真现象。通过仿真实验,可以生动直观地展现仿真结果,增强学生的感性认识,加深学生对概念和原理的理解。实践证明,这种教学方法有利于调动学生的学习积极性和主动性,明显改善了教学效果。

In view of the problems existing in the teaching of“High-frequency Electronic Circuit”,such as abstract,boring, and low participation enthusiasm of students,the traditional teaching was reformed and the Multisim simulation software was in-troduced into the teaching of“High-frequency Electronic Circuit”. The simulation examples for single detuning amplitude dis-criminator circuit were enumerated. Through continuous change of circuit component parameters,the characteristics of detuning waveforms,normal detection of diode envelope detector and inert distortion phenomenon were compared and analysed. The simu-lation experiments show the simulation results can be revealed intuitively and vividly,which can enhance perceptual knowledge of the students,and deepen understanding of students for the circuit concepts and principles. It is proven through practice that the teaching method is helpful for mobilizing the initiative learning enthusiasm of the students and can improve the teaching effect obviously.