中文摘要：

利用Multisim 10.1软件对电容回授三端式正弦波振荡电路进行仿真分析，观察了振荡器输出波形的振幅和振荡频率，并改变谐振回路电容大小，说明了参数的变化对输出波形振幅和振荡频率的影响。通过实例验证了将Multisim 10.1引入通信电子线路实验教学后，能更准确地帮助学生理解和掌握通信电子线路的理论内容，提高学生对电路问题的分析和解决能力，更好地培养学生创新能力，得出了Multisim 10.1软件在电子线路实验教学中起着非常重要的辅助作用。

英文摘要：

The three-terminal capacitor feedback sine wave oscillating circuit was analyzed and simulated with Multisim 10.1 software. The amplitude and frequency of the output waveform of an oscillator were observed. The influence of the circuit pa-rameter change on the amplitude and frequency was explained by changing the capacitor value of parallel resonant circuit. The fact that introduction of Multisim 10.1 software into experiment teaching of communication electronic circuits might help students understand and master the theory knowledge of the circuits,improve students′ ability to analyze and solve the circuit problem, and bring up the students′ innovative ability much more was verified by examples. This shows that the Multisim 10.1 software is playing a very important helping role in experiment teaching of communication electronic circuits.