Adaptive Rf Front Ends For Hand Held Applications

Author: Andre van Bezooijen
Editor: Springer Science & Business Media
ISBN: 9789048199358
File Size: 67,56 MB
Format: PDF, ePub
Read: 8033
Download

The RF front-end – antenna combination is a vital part of a mobile phone because its performance is very relevant to the link quality between hand-set and cellular network base-stations. The RF front-end performance suffers from changes in operating environment, like hand-effects, that are often unpredictable. Adaptive RF Front-Ends for Hand-Held Applications presents an analysis on the impact of fluctuating environmental parameters. In order to overcome undesired behavior two different adaptive control methods are treated that make RF frond-ends more resilient: adaptive impedance control, and adaptive power control. Several adaptive impedance control techniques are discussed, using a priori knowledge on matching network properties, in order to simplify robust 2-dimensional control. A generic protection concept is presented, based on adaptive power control, which improves the ruggedness of a power amplifier or preserves its linearity under extremes. It comprises over-voltage, over-temperature, and under-voltage protection.
Adaptive RF Front-Ends for Hand-held Applications
Language: un
Pages: 153
Authors: Andre van Bezooijen, Reza Mahmoudi, Arthur H.M. van Roermund
Categories: Technology & Engineering
Type: BOOK - Published: 2010-10-28 - Publisher: Springer Science & Business Media

The RF front-end – antenna combination is a vital part of a mobile phone because its performance is very relevant to the link quality between hand-set and cellular network base-stations. The RF front-end performance suffers from changes in operating environment, like hand-effects, that are often unpredictable. Adaptive RF Front-Ends for
Adaptive Low-Power Circuits for Wireless Communications
Language: en
Pages: 221
Authors: Aleksandar Tasic, Wouter A. Serdijn, John R. Long
Categories: Technology & Engineering
Type: BOOK - Published: 2007-03-06 - Publisher: Springer Science & Business Media

With a billion – soon to be two billion - cellular telephones in circulation, the next challenge is to make cellular radio functions adaptive to their environment. This book provides a comprehensive theoretical framework for optimizing performance, discussing joint optimization of Noise Figure and Input Intercept Point in receiver systems.
17th IEEE international conference on micro electro mechanical systems
Language: en
Pages: 868
Authors: IEEE International Conference on Micro Electro Mechanical Systems 17, 2004, Maastricht, The Netherlands
Categories: Technology & Engineering
Type: BOOK - Published: 2004 - Publisher:

Books about 17th IEEE international conference on micro electro mechanical systems
Microwave Journal
Language: en
Pages:
Authors: IEEE International Conference on Micro Electro Mechanical Systems 17, 2004, Maastricht, The Netherlands
Categories: Microwaves
Type: BOOK - Published: 2008 - Publisher:

Books about Microwave Journal
International Conference on Trends in Communications
Language: en
Pages: 551
Authors: IEEE International Conference on Micro Electro Mechanical Systems 17, 2004, Maastricht, The Netherlands
Categories: Technology & Engineering
Type: BOOK - Published: 2001 - Publisher: IEEE

Books about International Conference on Trends in Communications