SpringerLink Springer Engineering eBooks 2017 English+International

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Preface; Acknowledgments; Contents; List of Figures; List of Tables; List of Abbreviations; Biography; 1 Introduction ; 1.1 The Fear of Disconnection; 1.2 Advanced Wireless Communication Systems; 1.3 Flexible Multi-Standard Operation; 1.3.1 TX Frontend Key Requirements; 1.4 High Performance TX Architectures; 1.5 Quadrature Direct-Conversion Transmitters; 2 Incremental-Charge-Based Operation ; 2.1 Introduction; 2.2 Incremental-Charge-Based Operation; 2.2.1 Noise and Alias Performance; 2.2.1.1 Alias Attenuation; 2.2.1.2 Intrinsic Noise Filtering; 2.2.1.3 Quantization Noise Scaling.

2.2.1.4 Harmonic Performance; 2.3 Charge-Based Transmitter; 2.3.1 Power Efficiency; 2.4 Conclusion; 3 Capacitive Charge-Based Transmitter ; 3.1 Introduction; 3.2 Architecture; 3.2.1 Operating Principles; 3.2.2 CQDAC Operation; 3.2.3 Noise and Alias Performance; 3.2.3.1 Intrinsic RSCC Noise Filtering; 3.2.3.2 Quantization Noise; 3.2.3.3 sinc2 Alias Attenuation; 3.2.4 Harmonic Performance; 3.3 Circuit Realization; 3.3.1 CQDAC; 3.3.1.1 CUNIT/CBB; 3.3.1.2 Unit Cell; 3.3.1.3 Thermometer Decoder; 3.3.1.4 Layout; 3.3.2 Mixer and PPA; 3.3.2.1 PPA Design; 3.3.2.2 Mixer Design; 3.3.3 LO Generation.

3.3.4 Top-Level Description; 3.4 Measurement Results; 3.4.1 Measurement Setup; 3.4.2 CQDAC Measurement Results; 3.4.3 CQDAC TX Measurement Results; 3.5 Conclusion; 4 Resistive Charge-Based Transmitter ; 4.1 Introduction; 4.2 Architecture; 4.2.1 Operating Principles; 4.2.2 RQDAC Operation; 4.2.3 Noise and Alias Performance; 4.2.3.1 Intrinsic RC Noise Filtering; 4.2.3.2 Quantization Noise; 4.2.3.3 sinc2 Alias Attenuation; 4.2.4 Harmonic Performance; 4.2.4.1 RQDAC Switch; 4.2.4.2 Mixer Switches; 4.3 Circuit Realization; 4.3.1 RQDAC; 4.3.1.1 Unit Cell; 4.3.1.2 Layout; 4.3.2 Mixer Design.

4.3.3 LO Generation; 4.3.4 Top-Level Description; 4.4 Measurement Results; 4.4.1 Measurement Setup; 4.4.2 RQDAC Measurement Results; 4.4.3 RQDAC TX Measurement Results; 4.5 Conclusion; 5 Conclusion ; 5.1 Summary; Bibliography.

This book introduces a completely novel architecture that can relax the trade-off existing today between noise, power and area consumption in a very suitable solution for advanced wireless communication systems. Through the combination of charge-domain operation with incremental signaling, this architecture gives the best of both worlds, providing the reduced area and high portability of digital-intensive architectures with an improved out-of-band noise performance given by intrinsic noise filtering capabilities. Readers will be enabled to design higher performance radio front-ends that consume less power and area, especially with respect to the transmitter and power amplifier designs, considered by many the "battery killers" on most mobile devices. Describes an innovative architecture that has proved to support advanced wireless communication systems, with outstanding noise performance and improved power and area consumption; Provides an in-depth description of underlying concepts, implementation and results achieved; Demonstrates two real implementations, showing design details and measurement results.