Adaptive Low-Power Circuits for Wireless Communications (Hardcover)

Description

Well over a billion people are currently using cellular telephones, and this number is expected to grow to over two billion in the next few years. It is remarkable that a device that was considered a high-technology "toy" just a few years ago is now an indispensable feature of modern life. One of the key reasons for this remarkable transformation is the integration of all the radio functions of a cellular telephone onto a single inexpensive piece of silicon. This achievement is a result of innovations in design and process technology that allowed formerly discrete and separate devices to be integrated onto a common substrate.

Now that this integration has been accomplished, the next challenge is to make these radio functions adaptive to their environment. This "adaptive" feature of wireless communications devices is just today becoming a reality, and Adaptive Low-Power Circuits for Wireless Communications represents one of the first comprehensive treatments of the subject.

Adaptive radio transceivers require a comprehensive theoretical framework in order to optimize their performance. Adaptive Low-Power Circuits for Wireless Communications provides this framework with a discussion of joint optimization of Noise Figure and Input Intercept Point in receiver systems. Original techniques to optimize voltage controlled oscillators and low-noise amplifiers to minimize their power consumption while maintaining adequate system performance are also provided. The experimental results presented at the end of the book confirm the utility of the proposed techniques.

Table of Contents

FOREWORD. OUTLINE. LIST OF ABBREVIATIONS.

1 INTRODUCTION. 1.1 Why Silicon? 1.2 Why Wireless and RF? 1.3 Why Low-Power and Adaptive RF? 1.4 Why Multistandard and Adaptive RF? 1.5 Adaptivity Objectives. References.

2 PERFORMANCE PARAMETERS OF RF CIRCUITS. 2.1 Gain Parameters. 2.2 Nonlinearity Parameters. 2.3 Noise Figure. 2.4 Phase Noise. 2.5 Dynamic Range. 2.6 RF Front-End Performance Parameters. 2.7 Conclusions. References.

3 SPECTRUM-SIGNAL TRANSFORMATION. 3.1 Transceiver Architectures. 3.2 Signal and Spectral Transformations. 3.3 Mixer-Oscillator Models. 3.4 Image-Rejection Ratio Model. 3.5 IRR Model of Double-Quadrature Downconverters. 3.6 Conclusions. References.

4 SELECTION OF PERFORMANCE PARAMETERS FOR RECEIVER CIRCUITS. 4.1 System Considerations. 4.2 Independent Selection of NF And IIP3 Specifications. 4.3 Mutually Dependent Selection of NF And IIP3 Specifications. 4.4 Equilibrium, Optimality and Equality Criteria. 4.5 Notes on Power Consumption. 4.6 Performance Trade-offs in an RF Circuit. 4.7 Conclusions. References.

5 ADAPTIVITY OF LOW-NOISE AMPLIFIERS. 5.1 Adaptivity Phenomena of Amplifiers. 5.2 Performance Parameters of Inductively-Degenerated Low-Noise Amplifiers. 5.3 Adaptivity Models of Low-Noise Amplifiers 5.4 Conclusions. References.

6 ADAPTIVE VOLTAGE-CONTROLLED OSCILLATORS. 6.1 Adaptivity Phenomena of Oscillators. 6.2 An Adaptive Voltage-Controlled Oscillator. 6.3 Phase-Noise Model of LC Voltage-Controlled Oscillators. 6.4 Phase-Noise Performance of Quasi-Tapped Voltage-Controlled Oscillators. 6.5 Adaptivity Figures of Merit of Voltage-Controlled Oscillators. 6.6 K-rail Diagrams – Comprehensive Performance Characterization of Voltage-Controlled Oscillators. 6.7 Oscillator Design Problem. 6.8 Conclusions. References.

7 DESIGN OF ADAPTIVE VOLTAGE-CONTROLLED OSCILLATORS AND ADAPTIVE RF FRONT-ENDS. 7.1 An Adaptive Low-Power Voltage-Controlled Oscillator. 7.2 A Multistandard Adaptive Voltage-Controlled Oscillator. 7.3 Multistandard Adaptive RF Front-Ends. 7.4 Conclusions. References.

A Real-to-Complex-to-Real Transformation.

B Transformer-Feedback Degeneration of Low-Noise Amplifiers.

INDEX.