《通信电子线路》课程实验指导书.PDF

《通信电子线路》课程实验指导书 1 实验要求 1.实验前必须充分预习，完成指定的预习任务。预习要求如下： l）认真阅读实验指导书，分析、掌握实验电路的工作原理，井进行必要的估算。 2）完成各实验“预习要求”中指定的内容。 3）熟悉实验任务。 4）复习实验中所用各仪器的使用方法及注意事项。 2.使用仪器和学习机前必须了解其性能、操作方法及注意事项，在使用时应严格遵守。 3.实验时接线要认真，相互仔细检查，确定无误才能接通电源，初学或没有把握应经指导 教师审查同意后再接通电源。 4.高频电路实验注意：。 1）将实验报插入主机插座后，即已接通地线，但实验板所需的正负电源则要另外使用导 线进行连接。 2）由于高频电路频率较高，分布参数及相互感应的影响较大、所以在接线时连接线要尽 可能短。接地点必须接触良好。以减少干扰。 3）做放大器实验时如发现波形削顶失真甚至变成方波，应检查工作点设置是否正确，或 输入信号是否过大。 5.实验时应注意观察，若发现有破坏性异常现象（例如有元件冒烟。发烫或有异味）应立 即关断电源，保持现场，报告指导教师。找，出原因、排除故障，经指导教师同意再继续实验。 6.实验过程中需要改接线时，应关断电源后才能拆、接线。 7.实验过程中应仔细观察实验现象，认真记录实验结果（数据、波形、现象）。所记录的实 验结果经指导教师审阅签字后再拆除实验线一路。 8.实验结束后，必须关断电源、拨出电源插头，并将仪器、设备、工具、导线等按规定整 理 9.实验后每个同学必须按要求独立完成实验报告 2 目录 实验一、调谐放大器（实验板1） ·····································································3 1．单调谐回路谐振放大器 2．双调谐回路谐振放大器 实验二、丙类高频功率放大器（实验板1）························································7 实验三、LC 电容反馈式三点式振荡器（实验板l） ···············································9 实验四、石英晶体振荡器（实验板1）·····························································12 实验五、振幅调制器（实验板2） ··································································14 实验六、调幅波信号的调制（实验板2） ··························································17 实验七、变容二极管调频振荡器（实验板3） ····················································20 实验八、相位鉴频器（实验板3） ··································································22 实验九、集成电路（压腔振荡器）构成的频率解调器（实验板4）······························25 实验十、集成电路（销相环）构成的频率解调器（实验板4）··································28 实验十一、利用二极管函数电路实现波形转换（实验极4） ····································30 附录 一、TDS1002 型数字存储示波器·····································································31 二、HFJ-8D 超超高频毫伏表 ········································································40 三、AS1051S 高频信号发生器 ·············································