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Conclusion

  • Paulo Augusto Dal Fabbro
  • Maher Kayal
Part of the Analog Circuits and Signal Processing book series (ACSP)

Abstract

This chapter concludes the book by highlighting the results obtained with the two different designs involving a linear CMOS RF power amplifier. For the dynamic supply RF power amplifier, subject of Chaps. 2 to 4, the measurement results showed a relative improvement in efficiency of a factor of 1.7 at 5.2 GHz and of 2.2 at 2.4 GHz, when compared with the same amplifier operating with a constant 2.5 V supply voltage. For the frequency-tunable RF power amplifier, subject of Chaps. 5 to 7, simulations results for the complete CMOS solution operating at 3.7 and 5.2 GHz and the experimental data obtained for an hybrid (discrete+CMOS) prototype operating at 200 and 300 MHz, led to the conclusion that a frequency-tunable RF PA based on coupled inductors is a good solution for a multiband PA. The main contributions of this book and ideas for future works on the subjects that it covers are also highlighted.

Keywords

Power Amplifier Match Network Efficiency Enhancement Transformation Factor Variable Capacitor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

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    Huang C, de Vreede LCN, Sarubbi F, Popadic M, Buisman K, Qureshi J, Marchetti M, Akhnoukh A, Scholtes TLM, Larson LE, Nanver LK (2008) Enabling low-distortion varactors for adaptive transmitters. IEEE Trans Microw Theory Tech 56(5):1149–1163 CrossRefGoogle Scholar
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    Rako P (2008) Heads and tails: Design RF amplifiers for linearity and efficiency. EDN 53(7):31–38 Google Scholar
  3. 3.
    Schlumpf N (2004) Adaptation dynamique de la compression d’un amplificateur RF pour des signaux modulés en amplitude et en phase. PhD thesis, EPFL, Lausanne, Switzerland. URL http://library.epfl.ch/theses/?nr=3020

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.École Polytechnique Fédérale de Lausanne (EPFL)LausanneSwitzerland

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