Adaptive RF Front-Ends for Hand-Held Applications

by Reza Mahmoudi, Arthur van Roermund, Andre van Bezooijen, et al.

Book Overview

Symbols. Abbreviations.

1 Introduction. 1.1 Context and trends in wireless Communications. 1.2 Resilience to unpredictably changing environments. 1.3 Improvements by adaptively controlled RF front-ends. 1.4 Aim and scope of this book. 1.5 Book outline.

2 Adaptive RF frond-ends. 2.1 Introduction. 2.2 RF front-end functionality. 2.3 Fluctuations in operating conditions. 2.4 Impact of variables. 2.5 Adaptive control theory. 2.6 Identification of variables for detection and correction. 2.7 Conclusions on adaptive RF front-ends.

3 Adaptive impedance control. 3.1 Introduction. 3.2 Mismatch detection method. 3.3 Adaptively controlled PI-networks using differentially controlled capacitors. 3.4 Adaptively controlled L-network using cascaded loops. 3.5 Adaptive series-LC matching network using RF-MEMS. 3.6 Load line adaptation. 3.7 Conclusions on adaptive impedance control.

4 Adaptive power control. 4.1 Introduction. 4.2 Safe operating conditions. 4.3 Power adaptation for ruggedness. 4.4 Power adaptation for linearity. 4.5 Conclusions on adaptive power control.

5 Conclusions.

Appendix A Overview of adaptively controlled matching networks. Appendix B A dual-banding technique. Appendix C Transistor breakdown voltages.

References. Summary.

• Format: Hardcover
• Language: English
• ISBN: 9048199344
• ISBN13: 9789048199341
• Release Date: November 2010
• Publisher: Springer
• Length: 153 Pages
• Weight: 0.92 lbs.
• Dimensions: 0.4" x 6.1" x 9.2"