Distortion in RF Power Amplifiers
Book Details:
Publisher: | Artech House Publishers |
Series: |
Artech House
|
Author: | Joel Vuolevi |
Edition: | 1 |
ISBN-10: | 1580535399 |
ISBN-13: | 9781580535397 |
Pages: | 272 |
Published: | Feb 01 2003 |
Posted: | Nov 19 2014 |
Language: | English |
Book format: | PDF |
Book size: | 2.61 MB |
Book Description:
A treatment of distortion in RF power amplifiers. It seeks to offer guidance on designing easily linearizable systems that have low memory effects. The reader is offered a detailed understanding of how the matching impedances of a power amplifier and other RF circuits can be tuned to minimize overall distortion. It also demonstrates how to build models that can be used for distortion simulations. The measurement methodology should enable the reader to gauge the amplitude and phase of distortion components and recognize memory effects. The volume explains that by killing memory effects, it is possible to use simple linearizers, such as analogue predistortion, and still achieve sufficient performance. It presents a distortion analysis technique that allows you to repeat the analysis with other amplifier structures. With over 120 equations and more than 110 illustrations, this practical reference seeks to provide the assistance necessary to create amplifiers suitable for linear transmitters, and offers views of semiconductor modelling.
Improving the performance of the power amplifier is the most pressing problem facing designers of modern radio-frequency (RF) transceivers. Linearity and power efficiency of the transmit path are of utmost importance, and the power amplifier has proven to be the bottleneck for both. High linearity enables transmission at the highest data rates for a given channel bandwidth, and power efficiency prolongs battery lifetime in portable units and reduces heat dissipation in high-power transmitters. Cartesian feedback is a power amplifier linearization technique that acts to soften the tradeoff between power efficiency and linearity in power amplifiers. Despite its compelling, fundamental advantages, the technique has not enjoyed widespread acceptance beca...
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