8～16GHz的宽带无源倍频器MMIC的研究
发布时间：2019-04-18 23:47
【摘要】：随着半导体材料以及微波通信技术的蓬勃发展,原本应用于雷达、军事宽带通信领域的微波电路在手机基站、汽车雷达等民用领域也大放异彩。工作在该频段的电子设备,常借助倍频器将较低频率的本振信号倍频到需要的微波毫米波频段,这样既能降低本振频率又能扩展带宽。而倍频器MMIC,不仅有倍频器的一般特点,还有单片微波集成电路尺寸小、一致性好等优势,所以它在电子设备上较分立的板级倍频电路得到了更广泛的应用。无源倍频器不需要直流供电,使用简单,广泛运用于微波收发前端。本文将围绕宽带无源倍频器进行研究。选择合适的电路拓扑结构是设计倍频器的关键。论文对3种无源电路拓扑结构进行倍频原理推导。从项目需求出发,引入了双螺旋巴伦,讨论研究了影响其性能的主要因素,并据此设计出2款实用的巴伦电路。然后借助巴伦搭建了3款与前边讨论相对应的无源倍频电路,利用谐波平衡法进行了整体优化。结合本文的指标与它们的仿真结果进行对比,总结各电路的优势和不足之后,最终选择了仿真结果较好的双平衡倍频电路作为本次研究设计的重点。该倍频器采用四只相同的肖特基势垒二极管组成核心电路,输入输出则借助巴伦结构完成了宽带匹配和谐波抑制功能,最终输出所需要的二次谐波信号。论文还研究了影响倍频输出功率平坦度的一些因素,并给出了解决方案。采用成熟稳定的稳懋0.15μm GaAs PHEMT工艺,成功设计出一款不同于原HMC204的电路结构,且具有优异变频增益以及良好的倍频输出功率平坦度的宽带无源二倍频器是该倍频器的特色。该二倍频器在片实测显示:当输入功率为15dBm,在8~16GHz整个倍频段内,输出功率均大于1dBm,变频损耗小于14dB。对基波和各次谐波的隔离度均大于38dBc,芯片尺寸为1.3×1.3 mm~2。该二倍频器MMIC达到了预期目标,起到了原位替换HMC204的作用,将用于军用电子设备上。该款倍频器MMIC的研制拓宽了用户的选择,降低了采购成本,也为相关倍频器的研究起到了技术借鉴作用。
[Abstract]:With the rapid development of semiconductor materials and microwave communication technology, microwave circuits which are supposed to be used in the field of radar, military broadband communication are also very popular in the field of mobile phone base station, automobile radar and other civilian fields. Electronic equipment working in this frequency band often uses frequency multiplier to double the local vibration signal of lower frequency to the microwave millimeter wave frequency band which is needed so that the local frequency can be reduced and the bandwidth can be extended. The frequency multiplier MMIC, not only has the general characteristics of the frequency multiplier, but also has the advantages of small size and good consistency of the single chip microwave integrated circuit, so it has been more widely used in electronic equipment than the discrete board-level frequency doubling circuit. Passive frequency multiplier does not need DC power supply. It is simple to use and is widely used in microwave transceiver front end. This paper will focus on broadband passive frequency multiplier. The selection of appropriate circuit topology is the key to the design of frequency multiplier. In this paper, the frequency doubling principle of three kinds of passive circuit topology is deduced. According to the requirements of the project, the double helix Barron is introduced, and the main factors affecting its performance are discussed and studied, and two practical Balun circuits are designed according to the requirements of the project. Then three passive frequency doubling circuits corresponding to the previous discussion are built with the help of Barron and the harmonic balance method is used to optimize the whole circuit. After summarizing the advantages and disadvantages of each circuit, the double-balanced frequency doubling circuit with better simulation results is selected as the focus of this research and design based on the comparison between the results of this paper and their simulation results. The frequency multiplier uses four identical Schottky barrier diodes to form the core circuit, and the input and output complete the broadband matching and harmonic suppression functions with the help of the Baron structure, and finally output the second harmonic signal required. Some factors affecting the flatness of the output power of frequency doubling are also studied, and the solutions are given. In this paper, a stable 0.15um GaAs PHEMT process is used to design a broadband passive frequency multiplier which is different from the original HMC204 and has excellent frequency conversion gain and good power flatness of frequency doubling output is the characteristic of this frequency multiplier. The results show that when the input power is 15dBm, the output power is more than 1dBm and the loss of frequency conversion is less than 14dB in the whole frequency band of 8~16GHz. The isolation of fundamental and harmonic waves is greater than 38dBc, and the chip size is 1.3 脳 1.3 mm~2.. The frequency doubler MMIC has achieved the expected goal and has the function of replacing HMC204 in-situ. It will be used in military electronic equipment. The development of the frequency multiplier MMIC broadens the user's choice, reduces the purchase cost, and also plays a technical role in the research of the related frequency multiplier.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN771
本文编号：2460395
[Abstract]:With the rapid development of semiconductor materials and microwave communication technology, microwave circuits which are supposed to be used in the field of radar, military broadband communication are also very popular in the field of mobile phone base station, automobile radar and other civilian fields. Electronic equipment working in this frequency band often uses frequency multiplier to double the local vibration signal of lower frequency to the microwave millimeter wave frequency band which is needed so that the local frequency can be reduced and the bandwidth can be extended. The frequency multiplier MMIC, not only has the general characteristics of the frequency multiplier, but also has the advantages of small size and good consistency of the single chip microwave integrated circuit, so it has been more widely used in electronic equipment than the discrete board-level frequency doubling circuit. Passive frequency multiplier does not need DC power supply. It is simple to use and is widely used in microwave transceiver front end. This paper will focus on broadband passive frequency multiplier. The selection of appropriate circuit topology is the key to the design of frequency multiplier. In this paper, the frequency doubling principle of three kinds of passive circuit topology is deduced. According to the requirements of the project, the double helix Barron is introduced, and the main factors affecting its performance are discussed and studied, and two practical Balun circuits are designed according to the requirements of the project. Then three passive frequency doubling circuits corresponding to the previous discussion are built with the help of Barron and the harmonic balance method is used to optimize the whole circuit. After summarizing the advantages and disadvantages of each circuit, the double-balanced frequency doubling circuit with better simulation results is selected as the focus of this research and design based on the comparison between the results of this paper and their simulation results. The frequency multiplier uses four identical Schottky barrier diodes to form the core circuit, and the input and output complete the broadband matching and harmonic suppression functions with the help of the Baron structure, and finally output the second harmonic signal required. Some factors affecting the flatness of the output power of frequency doubling are also studied, and the solutions are given. In this paper, a stable 0.15um GaAs PHEMT process is used to design a broadband passive frequency multiplier which is different from the original HMC204 and has excellent frequency conversion gain and good power flatness of frequency doubling output is the characteristic of this frequency multiplier. The results show that when the input power is 15dBm, the output power is more than 1dBm and the loss of frequency conversion is less than 14dB in the whole frequency band of 8~16GHz. The isolation of fundamental and harmonic waves is greater than 38dBc, and the chip size is 1.3 脳 1.3 mm~2.. The frequency doubler MMIC has achieved the expected goal and has the function of replacing HMC204 in-situ. It will be used in military electronic equipment. The development of the frequency multiplier MMIC broadens the user's choice, reduces the purchase cost, and also plays a technical role in the research of the related frequency multiplier.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN771
【参考文献】
相关期刊论文 前1条
1 肖仕伟;;三毫米波二倍频器研究[J];无线电工程(移动通信);2000年06期
，本文编号：2460395
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