Baseband Analog Circuits for Software Defined Radio

Dedication. Preface. Acknowldgements. 1. 4G wireless terminals. 1.1 A Wireless-Centric World. 1.2 The Driving Forces Towards 4G Systems. 1.3 Basic Architecture For a 4G Terminal. 1.4 The Role of Analog Circuits. 1.5 Energy-Scalable Radio Front End. 1.6 Towards Cognitive Radios. 2. Software Defined Radio-Front End. 2.1 The Software Radio Architecture. 2.2 Candidate Architectures for sdr Front Ends. 2.3 sdr Front End Implementation. 2.4 Digital Calibration of Analog Imperfections. 2.5 Conclusions. 3. Analog baseband Link Budget Analysis. 3.1 Analog Baseband Signal Processing. 3.2 Baseband Trade-Offs for Analog to Digital Conversion. 3.3 Multistandard Analog Baseband Specs. 3.4 Multimode Low-Pass Filter. 3.5 Automatic Gain Control. 3.6 Conclusions. 4. Flexible Analog Building Blocks. 4.1 Challenges in Analog Design for Flexibility. 4.2 A Modular Design Approach. 4.3 Flexible Operational Amplifiers. 4.4 A Digital-Controlled Current Follower. 4.5 Flexible Passive Components. 4.6 Flexible Transconductors. 4.7 Flexible Biquadratic Sections. 4.8 Conclusions. 5. Implementations of Flexible Filters. 5.1 State of the Art for Flexible ct Filters. 5.2 A Reconfigurable umts/wlan Active-Gm-RC lpf. 5.3 lpf and vga for sdr Front End. 5.4 Conclusions. List of Figures. List of Tables. References. Index.