Radio-Frequency Digital-to-Analog Converters

With the proliferation of wireless networks, there is a need for more compact, low-cost, power efficient transmitters that are capable of supporting the various communication standards, including Bluetooth, WLAN, GSM/EDGE, WCDMA and 4G of 3GPP cellular. This book describes a novel idea of RF digital-to-analog converters (RFDAC) and demonstrates how they can realize all-digital, fully-integrated RF transmitters that support all the current multi-mode and multi-band communication standards.

With this book the reader will:

• Understand the challenges of realizing a universal CMOS RF transmitter
• Recognize the design issues and the advantages and disadvantages related to analog and digital transmitter architectures
• Master designing an RF transmitter from system level modeling techniques down to circuit
  designs and their related layout know-hows
• Grasp digital polar and I/Q calibration techniques as well as the digital predistortion approaches
• Learn how to generate appropriate digital I/Q baseband signals in order to apply them to the test chip and measure the RF-DAC performance.

• Highlights the benefits and implementation challenges of software-defined transmitters using CMOS technology
• Includes various types of analog and digital RF transmitter architectures for wireless applications
• Presents an all-digital polar RFDAC transmitter architecture and describes in detail its implementation
• Presents a new all-digital I/Q RFDAC transmitter architecture and its implementation
• Provides comprehensive design techniques from system level to circuit level
• Introduces several digital predistortion techniques which can be used in RF transmitters
• Describes the entire flow of system modeling, circuit simulation, layout techniques and the measurement process

University researchers, R&D engineers in industry, RFIC design engineers, and graduate students

Chapter 1 Introduction

Chapter 2 Digital Polar Transmitter Architecture

Chapter 3 Digital Baseband of  The Polar Transmitter

Chapter 4 RF Front-End (RFDAC) of the Polar Transmitter

Chapter 5 Situation Measurement Results of the Polar Transmitter

Chapter 6 Idea od All-Digital I/Q Modulator

Chapter 7 Orthogonal Summation: A 2x3-Bit All-Digital I/Q RF-DAC

Chapter 8 Towards High-Resolution RF-DAC: The System Design Perspective

Chapter 9 Differential I/Q DPA and Power Combining Network

Chapter 10 A Wideband 2x13-Bit All-Digital I/Q RFDAC

Chapter 11 Measurement Results of the 2x13-Bit I/Q RFDAC

Chpater 12 Conclusions

Appandix A. Polar Transmitter

Appendix B. I/Q RFDAC