宽带多通道射频收发机设计与实现

发布时间：2018-04-18 05:01

本文选题：射频 + 收发机　；参考：《电子科技大学》2014年硕士论文

【摘要】：现如今,射频技术有着广泛的应用市场。不论是在民用方面还是在军用方面,射频技术都不断深化着无线通信技术的革新,不断促进着人类的移动通信方式。射频收发机作为无线通信技术中的重要一环很大程度上直接决定了无线通信系统的质量。射频收发模块不仅要满足发射信号频谱纯净、接收灵敏度高抗干扰能力强、发射机效率高动态范围大等要求外,还要求射频收发模块满足体积小、轻便、较低的驱动电压、功耗小等一系列要求。本课题在于设计一款AM调制双发射通道、ASK/OOK调制单接收通道的射频收发机,收发工作频段700~1100MHz,发射通道发射频率分辨率高,发射功率动态范围大且控制精度高,接收频带宽,噪声系数小。两条发射通路设计相同,发射频率功率单独可控,可以单独工作也可以同时工作,收发机由于收发功能在不同的通道内实现,因此可以实现全双工工作,具有一定的应用价值。本论文以收发机频率源及收发链路作为本论文的主要研究内容,通过研读许多国内外射频收发机和相关电路论文文献基础上,从理论上分析了收发机的几种基本结构和相关理论并结合频率合成技术、调制解调技术、混频技术、功率放大技术、自动增益控制原理、滤波器技术等相关电路设计理论与应用讨论了收发机系统的实现。通过对收发机基本结构的对比,提出了本课题的系统方案和相关电路设计思想,同时通过ADS(Advanced Design System)仿真软件,从系统链路和相关电路两个层面对收发系统进行了全面的设计与仿真,通过对结构和参数的优化仿真得出了满足要求的射频收发系统、验证了方案的设计。最后,通过Altium Designer PCB设计软件进行了实际电路的设计,并对电路实物进行了调试与测试,分析了调试测试过程中出现的问题,提出了解决方案,得到满足性能要求的收发系统整机。
[Abstract]:Nowadays, RF technology has a wide application market.In both civil and military fields, radio frequency technology is deepening the innovation of wireless communication technology and promoting human mobile communication mode.Radio frequency transceiver, as an important part of wireless communication technology, directly determines the quality of wireless communication system.RF transceiver module should not only meet the requirements of pure spectrum of transmitting signal, strong anti-interference ability of receiving sensitivity, high dynamic range of transmitter efficiency and so on, but also require RF transceiver module to meet the requirements of small volume, light and low driving voltage.Low power consumption and a series of requirements.This subject is to design a radio frequency transceiver with AM modulation dual transmitting channel / ASK / OOK modulation single receiving channel. The transmitter has high frequency resolution of transmitting frequency, high dynamic range of transmission power and high control precision, and has high receiving frequency bandwidth.The noise coefficient is small.The design of the two transmission paths is the same, the transmission frequency power can be controlled separately, and the transceiver can work either alone or at the same time. Because the transceiver functions are realized in different channels, the transceiver can realize full duplex operation, which has certain application value.This thesis takes transceiver frequency source and transceiver link as the main research content of this paper, through reading many domestic and foreign RF transceiver and related circuit paper literature foundation.Several basic structures and related theories of transceiver are analyzed theoretically and combined with frequency synthesis technology, modulation and demodulation technology, mixing technology, power amplifier technology, automatic gain control principle.The realization of transceiver system is discussed in this paper.By comparing the basic structure of transceiver, the system scheme and related circuit design idea of this subject are put forward, and the simulation software of ADS(Advanced Design system is used.The transceiver system is designed and simulated from two aspects of system link and related circuit. The RF transceiver system which meets the requirements is obtained by optimizing the structure and parameters, and the design of the scheme is verified.Finally, the actual circuit is designed by Altium Designer PCB, and the circuit is debugged and tested. The problems in debugging and testing are analyzed, and the solution is put forward.Get the whole transceiver system to meet the performance requirements.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN859

【参考文献】