一种c波段带状线定向耦合器的研究设计与实际应用
发布时间：2018-08-03 21:21
【摘要】：定向耦合器是一种四端口的分布参数的微波网络元件,其具有方向性的耦合特点,可以在对主射频信号影响极小的情形下,实现对主信号的监控测量,因而被大量应用到现代微波通信系统中。通过定向耦合器的应用,可以很方便快捷的得到系统的很多重要参数,从而可以确定系统的工作状态。带状线定向耦合器具有各种定向耦合器比较折中的特点,方向性较好,体积小,方便集成应用,因此带状线定向耦合器具有极高的研究应用价值。定向耦合的方向性是其最主要的技术指标,也是研究重点,对定向耦合器小型化、宽频带的研究也极其重要。在保证带状线定向耦合器方向性的同时,如何设计后续的检波电路、数字电路以及功率检测和驻波比的程序算法也是本论文设计的难点与重点。本文主要研究内容如下：1、所设计的带状线定向耦合器结构尺寸小巧紧凑符合系统要求,在设计的带宽内耦合器对于发射机发功率的功率检测准确,每个工作频点在在20多个dB的范围内功率检测误差在±1dB以内,实现了带状线定向耦合器模块精确功率检测功能。2、带状线定向耦合器在设计的带宽内当发射机系统连接正常时,对天馈线驻波系数的检测准确。当发射机系统天馈线开路的情况下,能检测到驻波比告警,耦合器通过串口发出指令关断发射机电源,从而有效的保护发射机。带状线定向耦合器的应用前景非常广泛,是很多射频微波系统的重要组成部分。随着无线通信事业的发展,会刺激着带状线定向耦合器不断向前发展。材料技术的更新,精密加工技术的发展以及先进的计算机仿真软件的不断进步,将会是带状线定向耦合器发展进步的主要方向。定向耦合器的发展势必会影响到未来射频微波相关产业的发展,会间接改善人们生活方式,为社会做出贡献。
[Abstract]:The directional coupler is a kind of microwave network element with four port distribution parameters. It has the characteristic of directional coupling and can realize the monitoring and measurement of the main signal in the case of the small influence on the main radio frequency signal. Therefore, it is widely used in the modern microwave communication system. Through the application of directional coupler, it can be very convenient and quick. A lot of important parameters of the system can be obtained, thus the working state of the system can be determined. The strip line directional coupler has the characteristics of all kinds of directional couplers, the directional coupler is better, the volume is small, and it is convenient for the integrated application. Therefore, the strip line directional coupler has a very high research and application value. The directional coupling direction is the most important. The technical index is also the focus of research. It is also very important to study the miniaturization of directional couplers and wide band. In order to ensure the directional coupler direction of the strip line, how to design the follow-up circuit, digital circuit, power detection and the program algorithm in Bobbi is also the difficult and key point in this paper. The features are as follows: 1, the designed band line directional coupler has small compact size and compact size, which meets the requirements of the system. In the designed bandwidth, the coupler can detect the power of the transmitter accurately. The power detection error is within + 1dB within the range of each working frequency in the range of more than 20 dB, and the precision power of the strip line directional coupler module is realized. Detection function.2, band line directional coupler in the design bandwidth, when the transmitter system is connected to normal, the detection of the standing wave coefficient of the feeder line is accurate. When the transmitter system's feeder line is open, the Bobbi alarm can be detected. The coupler sends out instructions through the serial port to turn off the transmitter power, thus effectively protecting the transmitter. The application of linear directional coupler is very widely used. It is an important component of many RF microwave systems. With the development of wireless communication, it will stimulate the continuous development of banded directional couplers. The update of material technology, the development of precision machining technology and the continuous progress of advanced computer simulation software will be The development of stripline directional couplers is the main direction of development. The development of directional couplers is bound to affect the future development of radio frequency and microwave related industries, and will indirectly improve people's life style and contribute to the society.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN622
本文编号：2163027
[Abstract]:The directional coupler is a kind of microwave network element with four port distribution parameters. It has the characteristic of directional coupling and can realize the monitoring and measurement of the main signal in the case of the small influence on the main radio frequency signal. Therefore, it is widely used in the modern microwave communication system. Through the application of directional coupler, it can be very convenient and quick. A lot of important parameters of the system can be obtained, thus the working state of the system can be determined. The strip line directional coupler has the characteristics of all kinds of directional couplers, the directional coupler is better, the volume is small, and it is convenient for the integrated application. Therefore, the strip line directional coupler has a very high research and application value. The directional coupling direction is the most important. The technical index is also the focus of research. It is also very important to study the miniaturization of directional couplers and wide band. In order to ensure the directional coupler direction of the strip line, how to design the follow-up circuit, digital circuit, power detection and the program algorithm in Bobbi is also the difficult and key point in this paper. The features are as follows: 1, the designed band line directional coupler has small compact size and compact size, which meets the requirements of the system. In the designed bandwidth, the coupler can detect the power of the transmitter accurately. The power detection error is within + 1dB within the range of each working frequency in the range of more than 20 dB, and the precision power of the strip line directional coupler module is realized. Detection function.2, band line directional coupler in the design bandwidth, when the transmitter system is connected to normal, the detection of the standing wave coefficient of the feeder line is accurate. When the transmitter system's feeder line is open, the Bobbi alarm can be detected. The coupler sends out instructions through the serial port to turn off the transmitter power, thus effectively protecting the transmitter. The application of linear directional coupler is very widely used. It is an important component of many RF microwave systems. With the development of wireless communication, it will stimulate the continuous development of banded directional couplers. The update of material technology, the development of precision machining technology and the continuous progress of advanced computer simulation software will be The development of stripline directional couplers is the main direction of development. The development of directional couplers is bound to affect the future development of radio frequency and microwave related industries, and will indirectly improve people's life style and contribute to the society.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN622
【参考文献】
相关期刊论文 前1条
1 和宏海;射频功率测量在通信系统中的应用[J];无线电工程;2002年10期
，本文编号：2163027
本文链接：https://www.wllwen.com/kejilunwen/dianzigongchenglunwen/2163027.html
