一体化多通道变频器的研究与设计
发布时间：2019-04-20 11:51
【摘要】：微波变频器广泛应用于微波通信、雷达系统、遥测遥感、导航系统、侦察和电子对抗等领域,是现在通信系统的核心部分。由于卫星通信的快速发展,射频前端电路的集成度越来越高,功能也越来越多,单一模块的变频器已经不能满足通信行业发展的需要,有时一个系统需要多路变频通道才能满足需求,随着设备小型化和集成化的发展,这就需要将多个变频通道集成在一个机箱内,因此一体化多通道变频器是个非常值得研究的课题。本文主要是对一体化多通道变频器进行研究,为微波通信提供一个具有通用性、实用性和高可靠性的微波变频设备。该变频器共用一个机箱,一个电源,一个时钟模块和一个主控模块;并且每个变频模块相互独立、互不影响可以单独工作和关闭,变频模块也支持盲拔插,可以随时取出或更换,因此大大减小了设备的体积,节约了成本,也方便了用户的使用和日后的维护。论文主要开展了以下研究工作:1.本文首先介绍了微波变频器的发展状况;又介绍了微波变频器的主要的技术指标、锁相环的基本理论、设计锁相频率合成器的常用方法以及微波变频器的常用结构并分析了每种结构的优缺点。2.根据技术要求,对多通道变频器进行设计,主要包括以下几个方面:系统组成框图和原理,系统结构设计,S频段下变频模块设计,时钟单元设计,电源模块设计,控制单元设计以及系统的可靠性和可维护性设计。其中主要讲述了S频段下变频模块的设计,根据技术要求,经过分析,S频段下变频模块采用超外差式下变频结构;根据选用的下变频结构和主要的技术指标要求,确定了变频通道的设计方案、本振的设计方案和自检功能的设计方案,并进行了电路仿真和优化。3.本文也着重介绍了关键器件的选择,并对器件的性能进行了分析。最后对设计完成的设备进行测试并记录测试结果,将测试结果和标准要求的技术指标进行对比和分析,经过对比,最终的测试结果满足设计指标要求。
[Abstract]:Microwave inverter is widely used in microwave communication, radar system, telemetry and remote sensing, navigation system, reconnaissance and electronic countermeasure, etc. It is the core part of the current communication system. Due to the rapid development of satellite communication, the integration of RF front-end circuits is getting higher and higher, and the functions of RF front-end circuits are more and more. The frequency converter of single module can not meet the needs of the development of communication industry. Sometimes a system needs multi-channel frequency conversion channels to meet the requirements. With the development of miniaturization and integration of equipment, it is necessary to integrate multiple frequency conversion channels into one chassis. Therefore, the integration of multi-channel inverter is a very worthy subject to be studied. In this paper, the integrated multi-channel inverter is studied to provide a universal, practical and reliable microwave frequency conversion equipment for microwave communication. The frequency converter share a chassis, a power supply, a clock module and a master control module; And each frequency conversion module is independent of each other, and can work and close separately without affecting. The frequency conversion module also supports blind plug-in and can be removed or replaced at any time, thus greatly reducing the volume of the equipment and saving the cost. It also facilitates the user's use and future maintenance. This paper mainly carried out the following research work: 1. Firstly, this paper introduces the development of microwave frequency converter. The main technical indexes of microwave frequency converter, the basic theory of phase locked loop, the common methods of designing phase locked frequency synthesizer and the common structure of microwave frequency converter are also introduced, and the advantages and disadvantages of each structure are analyzed. According to the technical requirements, the multi-channel inverter is designed, which mainly includes the following aspects: system composition block diagram and principle, system structure design, S-band down-conversion module design, clock unit design, power module design, and so on. Control unit design and system reliability and maintainability design. The design of S-band down-conversion module is mainly described. According to the technical requirements, the S-band down-conversion module adopts super-heterodyne down-conversion structure. According to the selected down conversion structure and the main technical requirements, the design scheme of the frequency conversion channel, the design scheme of the local vibration and the design scheme of the self test function are determined, and the circuit simulation and optimization are carried out. 3. This paper also focuses on the selection of key devices, and analyzes the performance of the devices. Finally, the designed equipment is tested and the test results are recorded. The test results are compared and analyzed with the technical indexes required by the standard. Through the comparison, the final test results meet the requirements of the design indicators.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN773
本文编号：2461586
[Abstract]:Microwave inverter is widely used in microwave communication, radar system, telemetry and remote sensing, navigation system, reconnaissance and electronic countermeasure, etc. It is the core part of the current communication system. Due to the rapid development of satellite communication, the integration of RF front-end circuits is getting higher and higher, and the functions of RF front-end circuits are more and more. The frequency converter of single module can not meet the needs of the development of communication industry. Sometimes a system needs multi-channel frequency conversion channels to meet the requirements. With the development of miniaturization and integration of equipment, it is necessary to integrate multiple frequency conversion channels into one chassis. Therefore, the integration of multi-channel inverter is a very worthy subject to be studied. In this paper, the integrated multi-channel inverter is studied to provide a universal, practical and reliable microwave frequency conversion equipment for microwave communication. The frequency converter share a chassis, a power supply, a clock module and a master control module; And each frequency conversion module is independent of each other, and can work and close separately without affecting. The frequency conversion module also supports blind plug-in and can be removed or replaced at any time, thus greatly reducing the volume of the equipment and saving the cost. It also facilitates the user's use and future maintenance. This paper mainly carried out the following research work: 1. Firstly, this paper introduces the development of microwave frequency converter. The main technical indexes of microwave frequency converter, the basic theory of phase locked loop, the common methods of designing phase locked frequency synthesizer and the common structure of microwave frequency converter are also introduced, and the advantages and disadvantages of each structure are analyzed. According to the technical requirements, the multi-channel inverter is designed, which mainly includes the following aspects: system composition block diagram and principle, system structure design, S-band down-conversion module design, clock unit design, power module design, and so on. Control unit design and system reliability and maintainability design. The design of S-band down-conversion module is mainly described. According to the technical requirements, the S-band down-conversion module adopts super-heterodyne down-conversion structure. According to the selected down conversion structure and the main technical requirements, the design scheme of the frequency conversion channel, the design scheme of the local vibration and the design scheme of the self test function are determined, and the circuit simulation and optimization are carried out. 3. This paper also focuses on the selection of key devices, and analyzes the performance of the devices. Finally, the designed equipment is tested and the test results are recorded. The test results are compared and analyzed with the technical indexes required by the standard. Through the comparison, the final test results meet the requirements of the design indicators.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN773
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1 张林;Ka波段接收机前端子系统研究[D];电子科技大学;2011年
，本文编号：2461586
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