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A Study on the Power Amplifier Design

Author: XieZhuoHeng
Tutor: HuJianPing
School: Hangzhou University of Electronic Science and Technology
Course: Circuits and Systems
Keywords: Base station RF power amplifier Linear Technology Analog Predistortion
CLC: TN722.75
Type: Master's thesis
Year: 2009
Downloads: 349
Quote: 0
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Abstract


The rapid development of wireless communication technology in the past decade, greatly changed the way people live. From a global perspective, the wireless communication users every year significant growth in wireless communications has entered the stage of development of large-scale. With the rapid growth of wireless communication users and broadband communications business conduct, communication band become more and more crowded; third generation mobile communications, as well as updated mobile communication technology LTE (Long Tern Evolution) and Wimax (Worldwide Interoperability for Microwave Access) and other wireless channel linearization high RF power amplifiers, and the entire RF chain is to lead the wireless channel nonlinear RF power amplifier linearization become today's wireless communications research areas hot spots. This article intends to study design and debugging, and analog predistortion techniques for RF power amplifiers, in the paper, mainly to the completion of the following aspects of work: 1. GSM (Global System for Mobile communication) base station system for background introduced development direction of the base station network basic theoretical knowledge as well as base station RF power amplifier. Introduces RF power amplifier works, a detailed analysis of the RF power amplifier nonlinear signal, and do detailed introduction to today's popular linearization techniques. Using Agilent ADS simulation design RF driver amplifier, and then proceed to the PCB system board processing; and RF driver amplifier for debugging and measurement, and analysis of the measurement results, and focus on the problems encountered in the RF driver amplifier testing process are summarized and the solutions to those problems. Simulation design, debugging and measurement of RF power amplifier based on LDMOS tube power amplifier, RF power amplifier stability test methods and RF indicators detailed debugging method; elaborated methods of measurement of the RF power amplifier and related RF indicators measuring results are analyzed; summary and discussion of the problems encountered in the actual commissioning of the RF power amplifier. Introduces the principles of analog predistortion power amplifier, and analog predistortion power amplifier simulation analysis, simulation results verify the analog predistortion principle. This article from the status of the wireless communication base station on the direction of development of the RF power amplifier linearization, stressed the great significance of the linearization of RF power amplifiers for wireless communications. A detailed analysis of the works of the RF power amplifier. Design and a high-power RF power amplifier test and measurement indicators; article also widely used analog predistortion power amplifier simulation to better understand how it works.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Amplification technology,the amplifier > Amplifier > Amplifiers: the role of sub- > Power amplifier
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