文档介绍：哈尔滨工业大学工学硕士学位论文
摘要
近年来,短距离无线数据传输作为无线通信产业的新领域发展迅速,其应用
更是无所不在:身份识别、无线鼠标,键盘、无线门禁、遥控装置、工业传感器
等已经成为人们生产生活中不可或缺的部分。因此,短距离无线数据传输成为了
一种方便快捷的通信方式。射频微波电路技术的发展为无线通信、传感、识别等
系统提供了核心元器件。这使得无线射频通信越来越容易,数据传输速率越来越
高,工作频率日益提高,抗干扰能力越来越强。由于短距离无线数据传输具有功
耗小、功能简单、开发周期短等优点,它自然在现代嵌入式无线产品中得到了广
泛的应用。
本文首先介绍了几种不同的短距离无线数据传输技术并加以比较,选择
。然后对射频通信理论:无线数据传
输原理、改善通信距离措施、射频电路设计作了相关介绍。在此基础上以单片机
为控制核心,选用适当的无线收发芯片和集成功放芯片、低噪声放大器芯片设计
了无线温度采集系统。系统下位机端用温度传感器进行温度采集,通过单片机将
数据由无线模块发送,由无线模块接收后传至上位机进行显示。
,并对通信距离的改善做出
详细讨论,包括功放及低噪声放大器芯片的选用与电路设计、系统性能的改进、
PCB设计时的屏蔽理论与规范。
最后,本文对设计模块进行了匹配调试和指标参数(功耗、灵敏度、增益)
的测量,并采用温度采集模块对系统进行了验证。

关键词:短距离;无线数据传输;;射频电路

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哈尔滨工业大学工学硕士学位论文
Abstract
As the frontier of the munications industry, short-range wireless data
transmission has developed rapidly in recent years. Its application is ubiquitous: such as
identification, wireless mouse, keyboard, wireless access, r emote c ontrolling de vices,
industrial s ensors a nd s o on. What’s m ore,all t hese ha ve e essential parts of
people's production and life. Therefore, the short-range wireless data transmission has
e a convenient and swift method munication. The technical development
of r adio frequency and m icrowave ci rcuit provides t he co ponents f or w ireless
communication, s ensing, i dentification a nd ot her s ystems. It f acilitates the r adio
frequency c ommunication, increases the da ta transfer ra te,raises the frequency of
operation a nd improves the a bility of a nti-interference. Owing t o a ll t he a dvantages
short-range wireless data transmission technology has such as low power consumption,
simple f eatures and sh ort de velopmentcycle, short-range w ireless data t ransmission
technology is widely applied in modern embedded wireless products.
This article describes several different technologies of the short-range wireless data
transmission, and chooses the worked soluti