本文選題：W波段　切入點：上下變頻組件　出處：《電子科技大學(xué)》2015年碩士論文

【摘要】：隨著軍事需求的不斷增強和商用無線通信技術(shù)的快速發(fā)展,頻譜資源變得日益緊缺,較低頻率的微波已不能滿足時代需求,對較高頻率的毫米波研究正在成為大家關(guān)注的熱點。因為W波段是毫米波波段的重要頻段,變頻組件又是無線通信和雷達(dá)收發(fā)系統(tǒng)的關(guān)鍵部件,所以對W波段變頻組件的研究就顯得很有必要。本文針對W波段的上下變頻模塊做了比較深入的設(shè)計和研究,在對指標(biāo)進(jìn)行詳細(xì)分析后提出了變頻模塊的方案,采用W波段MMIC芯片完成了上下變頻模塊的研制,并搭建了針對雷達(dá)相參頻率源的相參性測試系統(tǒng)硬件。根據(jù)電路設(shè)計中模塊化的思想,上變頻組件可設(shè)計為三個部分:W波段倍頻混頻鏈路、W波段鰭線結(jié)構(gòu)濾波器、W波段放大模塊。下變頻組件的設(shè)計為兩個部分:W波段下變頻模塊、X波段和L波段濾波放大下變頻模塊。在參考了各個器件單獨驗證結(jié)果的基礎(chǔ)上,根據(jù)各個器件的性能測試結(jié)果來修改上下變頻模塊的方案,然后進(jìn)行各個器件之間的集成設(shè)計,主要的工作重點如下:1.簡單從倍頻器和混頻器兩方面介紹了變頻技術(shù)的基本理論,列舉了并分析了上變頻和下變頻的幾種主要變頻方案。2.根據(jù)指標(biāo)要求,選定初步方案中需要的各個器件,在對每個器件充分了解的基礎(chǔ)上對初步方案進(jìn)行修改,確定最終方案。3.設(shè)計研制了上變頻組件中需要用到的W波段鰭線濾波器,并對該結(jié)構(gòu)的濾波器進(jìn)行了較深入的研究,用同一種結(jié)構(gòu)實現(xiàn)了W波段92~97GHz、88.5~101GHz、93.4~94.6GHz鰭線帶通濾波器,測試結(jié)果滿足工程需要。4.完成了上下變頻組件的完整設(shè)計過程,包括基片和腔體的版圖設(shè)計、性能測試、數(shù)據(jù)分析以及測試過程中的故障分析排查。5.利用完成的W波段上下變頻組件結(jié)合微波下變頻模塊組成一個完整的毫米波相參頻率源測試系統(tǒng),并對頻率源的相參性進(jìn)行了驗證。6.針對設(shè)計和測試結(jié)果中出現(xiàn)的不足提出了進(jìn)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.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN773
，

本文編號：1688725