Adaptive RF Front-Ends for Hand-held Applications
Seiten
2014
|
2011 ed.
Springer (Verlag)
978-94-007-9914-1 (ISBN)
Springer (Verlag)
978-94-007-9914-1 (ISBN)
The RF front-end - antenna combination is a vital part of a mobile phone. This book offers a unique account of adaptive RF front-ends. It includes an analysis on the impact of fluctuating environmental parameters, and a generic protection concept is presented.
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.
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.
Symbols.- Abbreviations.- 1 Introduction.- 2 Adaptive RF frond-ends.- 3 Adaptive impedance control.- 4 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.
| Erscheint lt. Verlag | 13.12.2014 |
|---|---|
| Reihe/Serie | Analog Circuits and Signal Processing |
| Zusatzinfo | XV, 153 p. |
| Verlagsort | Dordrecht |
| Sprache | englisch |
| Maße | 155 x 235 mm |
| Themenwelt | Mathematik / Informatik ► Informatik ► Netzwerke |
| Mathematik / Informatik ► Informatik ► Theorie / Studium | |
| Informatik ► Weitere Themen ► Hardware | |
| Naturwissenschaften ► Chemie ► Analytische Chemie | |
| Naturwissenschaften ► Physik / Astronomie ► Festkörperphysik | |
| Technik ► Elektrotechnik / Energietechnik | |
| ISBN-10 | 94-007-9914-4 / 9400799144 |
| ISBN-13 | 978-94-007-9914-1 / 9789400799141 |
| Zustand | Neuware |
| Informationen gemäß Produktsicherheitsverordnung (GPSR) | |
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