超宽带毫米波连续检波对数放大器

发布时间：2018-03-09 14:34

本文选题：对数放大器　切入点：检波对数视频放大器　出处：《电子科技大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着电子战技术的发展以及作战环境的复杂多样化,电子侦察系统的性能要求也随之越来越高。高性能接收天线模块、设计合理的微波前端,可提供高灵敏度、扩大动态范围、提高信噪比信号给后端接收机以及提高接收机自身的灵敏度和测频精度。而微波检波对数视频放大器主要用于雷达告警机上作功率或者脉冲检测应用,能把大动态范围的输入压缩成一个小动态范围的视频电压,提供一个正比于输入微波功率的输出电压,在当前的雷达、通信和电子战等诸多领域系统中占有不可或缺的地位。本文主要研究内容包括：1)介绍了常见对数放大器的基本原理、指标与特点；2)介绍了一些对数放大器的设计流程与要点；3)介绍了几种二极管限幅器的设计方法,设计了砷化镓工艺下的肖特基势垒二极管限幅器、肖特基势垒二极管检波器。你好
[Abstract]:With the development of the electronic warfare technology and the complexity and diversification of the combat environment, the performance requirements of the electronic reconnaissance system are becoming more and more high. The high performance receiving antenna module, the reasonable design of the microwave front end, can provide high sensitivity and expand the dynamic range. To improve the signal-to-noise ratio (SNR) signal to the back-end receiver and to improve the sensitivity and frequency measurement accuracy of the receiver itself, while the microwave detector logarithmic video amplifier is mainly used for the power or pulse detection applications of the radar alarm machine. Can compress large dynamic range input into a small dynamic range video voltage, provide an output voltage proportional to the input microwave power, in the current radar, Communication and electronic warfare play an indispensable role in many fields. This paper introduces the basic principles of common logarithmic amplifiers, including the content of: 1. The design flow and key points of some logarithmic amplifiers are introduced. Several design methods of diode limiter are introduced. Schottky barrier diode limiter is designed under GaAs process. Schottky barrier diode geophone. Hello
【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】：TN722

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