W波段变频模块研究

发布时间：2018-03-31 02:19

  本文选题：W波段　切入点：上下变频组件　出处：《电子科技大学》2015年硕士论文

【摘要】：随着军事需求的不断增强和商用无线通信技术的快速发展,频谱资源变得日益紧缺,较低频率的微波已不能满足时代需求,对较高频率的毫米波研究正在成为大家关注的热点。因为W波段是毫米波波段的重要频段,变频组件又是无线通信和雷达收发系统的关键部件,所以对W波段变频组件的研究就显得很有必要。本文针对W波段的上下变频模块做了比较深入的设计和研究,在对指标进行详细分析后提出了变频模块的方案,采用W波段MMIC芯片完成了上下变频模块的研制,并搭建了针对雷达相参频率源的相参性测试系统硬件。根据电路设计中模块化的思想,上变频组件可设计为三个部分:W波段倍频混频链路、W波段鳍线结构滤波器、W波段放大模块。下变频组件的设计为两个部分:W波段下变频模块、X波段和L波段滤波放大下变频模块。在参考了各个器件单独验证结果的基础上,根据各个器件的性能测试结果来修改上下变频模块的方案,然后进行各个器件之间的集成设计,主要的工作重点如下:1.简单从倍频器和混频器两方面介绍了变频技术的基本理论,列举了并分析了上变频和下变频的几种主要变频方案。2.根据指标要求,选定初步方案中需要的各个器件,在对每个器件充分了解的基础上对初步方案进行修改,确定最终方案。3.设计研制了上变频组件中需要用到的W波段鳍线滤波器,并对该结构的滤波器进行了较深入的研究,用同一种结构实现了W波段92~97GHz、88.5~101GHz、93.4~94.6GHz鳍线带通滤波器,测试结果满足工程需要。4.完成了上下变频组件的完整设计过程,包括基片和腔体的版图设计、性能测试、数据分析以及测试过程中的故障分析排查。5.利用完成的W波段上下变频组件结合微波下变频模块组成一个完整的毫米波相参频率源测试系统,并对频率源的相参性进行了验证。6.针对设计和测试结果中出现的不足提出了进一步的工作展望。
[Abstract]:With the increasing of military demand and the rapid development of commercial wireless communication technology, the frequency spectrum resources become increasingly scarce, and the low-frequency microwave can no longer meet the needs of the times. The research on high frequency millimeter wave is becoming a hot topic, because W band is an important frequency band of millimeter wave band, and frequency conversion module is the key component of wireless communication and radar transceiver system. Therefore, it is very necessary to study the W-band frequency conversion module. This paper makes a more in-depth design and research on the up-down conversion module of the W-band, and puts forward the scheme of the frequency conversion module after the detailed analysis of the index. The up and down frequency conversion module is developed by using W-band MMIC chip, and the hardware of the coherent testing system for radar coherent frequency source is built. According to the modularization idea in the circuit design, The up-conversion module can be designed as three parts: W band double frequency mixing link / W band finline structure filter and W band amplifier module. The downconversion module is designed as two parts: W band down conversion module X band and L band filter. Amplifier down-conversion module. Based on the individual verification results of each device, According to the performance test results of each device, the scheme of up-down conversion module is modified, and then the integrated design of each device is carried out. The main work is as follows: 1. This paper introduces the basic theory of frequency conversion technology from the aspects of frequency multiplier and mixer, enumerates and analyzes several main conversion schemes of up-conversion and down-conversion .2.According to the requirements of the index, Each device needed in the initial scheme is selected, and the initial scheme is modified on the basis of the full understanding of each device. Finally, the final scheme .3.The W-band finline filter used in the up-conversion module is designed and developed. The filter of this structure has been studied in depth, and the W-BPF of 92N 97GHz / 885GHz / 101GHz / 93.41GHz fin-line band pass filter has been realized by using the same structure. The test results meet the engineering requirements .4.The complete design process of up-down converter assembly has been completed. Including substrate and cavity layout design, performance testing, Data analysis and fault analysis and troubleshooting in the process of testing .5.Using the completed W-band up-down conversion module and microwave down-conversion module to form a complete millimeter-wave coherent frequency source testing system, Finally, the coherence of the frequency source is verified. 6. Aiming at the shortcomings of the design and test results, the further work prospect is presented.
【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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本文编号：1688725