【作者】 赵亮；

【导师】 刘镰斧；

【作者基本信息】 电子科技大学 ， 通信与信息系统， 2013， 硕士

【摘要】 随着无线通信技术的迅猛发展，人们对无线通信系统提出了越来越高的要求。MIMO技术的提出为无线通信系统的高要求提供了良好的解决方案，它是无线通信领域的一项重大突破，对无线通信技术的发展具有重大的意义。MIMO技术的优势在于它可以在不增加通信系统带宽的条件下，使通信系统的频谱利用率和信道容量得到大幅度的提高。本文主要工作是设计一款MIMO系统中的宽频段发射机前端系统。首先，就课题背景和论文的内容安排做了简介。其次，对无线通信系统中的发射机的性能指标做了简单地介绍，对发射机的基本原理做了阐述，介绍了几种比较常用的发射机结构，对不同结构的性能做了简单的分析。再次，根据项目的具体指标要求，提出了发射机的设计思路，将指标要求和设计思路相结合我们确定了设计方案，在分析方案后对各器件进行了挑选。在硬件电路实现方面，介绍了发射机模块的主要器件并对其各指标做了分析，完成了系统原理图和PCB的绘制。最后，对系统实物进行测试并介绍了测试仪器以及测试环境，对测试结果做了具体的分析，根据调试过程中出现的问题，提出了相应的解决方案。更多还原

【Abstract】 With the rapid development of wireless communication technology in theseyears, and the increasing demands of the wireless communication system, MIMOtechnology is proposed. It can provide a good solution for the high demands of thecommunication system. It is a great breakthrough of the development of wirelesscommunication technology, and it has a great significance for wireless communicationsystem. The advantages of MIMO technology is that it can greatly improve thespectrum utilization of the communication system, and channel capacity underconditions that it does not increase the bandwidth of a communication system. Thispaper is based on wideband MIMO system transmitter, conducted on the transmitter RFfront-end research and design.First, this paper made a brief introduction of the paper background as well as thepaper structure.Secondly, this paper made a introduction of the performance index of thetransmitter in the wireless communication system, and described the basic principle ofthe transmitter, and introduces several of the more common transmitter structure, anddid a simple analysis of the performance of the different structures.Again, based on the specific indicators of the project requirements, we describedthe entire transceiver system design ideas. Based on the index requirements wedetermine the design project and select the device after analysis program. In hardwarecircuit, we introduce transmitter device and analysis its indicators, and complete systemschematic and PCB drawing.Finally, we introduce the test instruments and test environment of the entire system,then analysis the test result. And propose solutions for problem according to thedebugging process.更多还原