Titlebook: Linear CMOS RF Power Amplifiers for Wireless Applications; Efficiency Enhanceme Paulo Augusto Dal Fabbro,Maher Kayal Book 2010 Springer Sci

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Frequency-Tunable Capability,cs for the evaluation of the design, which is the subject of Chap.?6. It also surveys the main techniques found in the literature that could be used in the design of the frequency-tunable amplifier. The advantages and drawbacks of each technique are discussed and the choice of the coupled-inductors

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Design of the Frequency-Tunable CMOS RF Power Amplifier,unable impedance matching network based on coupled inductors is employed at the output of the amplifier. The design of the complete system is described, which includes the integrated planar coupled inductors, the circuit that controls the current flowing through the inductors, and the RF power ampli

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Measurement Results for the Frequency-Tunable CMOS RF Power Amplifier,havior could not be observed in the characterization of the integrated circuit at?3.7 and 5.2?GHz because of the low coupling factor of the integrated coupled inductors. A?hybrid implementation using an integrated stand-alone CMOS power amplifier designed for test purposes, a discrete commercial RF

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Conclusion,e 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 p

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Introduction,This introductory chapter presents the motivation for the subjects covered by this book. They are the efficiency enhancement and the frequency tunable capability applied to linear CMOS RF power amplifiers for wireless applications. The objectives, the specifications, and the outline of the book are described.

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,Appendix A: Measurement Setups and?Additional Screenshots,This first of two appendices presents the setups used for the measurements performed to characterize the RF power amplifiers treated in this book. The setups for S-parameter, 2-tone, and OFDM measurements are described. It also provides a few additional screenshots taken from the measurement instruments.

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