摘要：超级章鱼套件最早出现在美国，由SWL实验室在2002年推出，风靡于美国并于几年前引进至国内，是直放式接收机的代表。本次课题以“超级章鱼”QRP收发设备为基础，绘制电路图及印制电路板图并进行仿真，得到预期的电路信号波形，挑选并购买元器件，进行套件的焊接，通过对比各类天线的参数和功能，选择出合适的通讯天线，最后对整个套件进行系统的调试和最终的测试，以达到通联的效果。本次设计主要涉及以NE602为核心的滤波电路、以9018芯片构成的发射部分的振荡电路及天线三个部分，配合音频放大及键控系统，以达到无线收发数据的功能。超级章鱼具有调试方便、原材料易购、接收效果好等优点，可以应用于业余无线电通信。35199
毕业论文关键词：小功率通信;超级章鱼;天线
QRP Transceiver Of Super Rock Mite
Abstract:The Super Rock Mite first appeared in the United States, launched by the SWL lab in 2002, and was popular in the United States and introduced to China a few years ago, which was a direct representative of the receiver.This topic is based on "Super Rock Mite" QRP transceiver equipment, drawing the circuit and printed circuit board diagram and carries on the simulation. Expected circuit signal waveform, to choose and buy components, kit welding, through the comparison of all kinds of antenna parameters and functions, select the appropriate antenna. Finally the whole suite of system commissioning and final test. In order to achieve communications of the effect.This design mainly involves to NE602 which is the core of the filter circuit, 9018 chip to compose the transmitter of the oscillation circuit and antenna in three parts, with audio, amplifier and the system of key, in order to achieve the function of wireless data transceiver. The Super Rock Mite has a convenient debugging, Tesco of raw materials, received good effect, can be used in amateur radio communication.
Key words: Low Power Communication; Super Rock Mite; Antenna
目录
1 引言 1
1.1 课题背景 1
1.2 课题目的和意义 1
2 QRP极小功率的无线电通讯 3
2.1 QRP的理论基础 3
2.2 QRP的具体操作 3
3 总体设计方案 5
3.1无线发射机和接收机原理框图 5
3.2设计思路 5
3.2.1 滤波电路 6
3.2.2 振荡电路 6
3.2.3 天线 7
4 电路原理设计及主要元器件选型 8
4.1 PIC版章鱼和51版章鱼比较 8
4.2 主要参数及指标 8
4.3 主要元器件选型及介绍 8
4.3.1 元件选择 8
4.3.2 芯片介绍 9
4.4 按键功能 16
5 原理图和PCB图设计与制作 17
5.1 Protel 99SE和Altium Designer比较 17
5.2电路设计工具Altium Designer13介绍 17
5.3 原理图绘制 18
5.3.1 初始化界面 18
5.3.2 电路原理图的设计 18
5.4 印刷电路板的设计 23
5.4.1 PCB编辑器的功能特点 23
5.4.2 PCB的设计流程 24
5.4.3 在PCB文件中导入原理图网络表信息 24
5.5 电路板的布线 26
5.6 创建PCB元件库及元件封装 27
6 电路板焊制及天线的选择 31
6.1电路板焊制 31
6.1.1 焊接前的准备工作 31
6.1.2 元器件的识别 32 NE602超级章鱼QRP收发机设计:http://www.751com.cn/tongxin/lunwen_33045.html