Nuyts P.A.J., Reynaert P., Dehaene W. Continuous-Time Digital Front-Ends for Multistandard Wireless Transmission

Springer, 2014. — 329 p.The book you’re holding, physically or electronically, is the result of a very interesting, challenging but also rewarding research project. The research was carried out in different contexts and cooperations but it was centered around the following question: how can we make the RF transmitters of our modern communication systems (Wi-Fi, GSM, LTE, and so on) more flexible and more efficient at the same time. We engaged on a digitalization route to realize this. What this means in terms of digital modulation is the subject of this book. This modulation problem is treated in many of its dimensions: we make high-level system considerations, go through the system’s mathematics, and proceed all the way down to implementation in 65 and 40 nm standard CMOS.
You read this well. There are a lot of different abstraction levels in this book. It is our strong belief that this is the only way to come to optimal solutions. Keep the different abstractions in place to handle complexity. However, try to think as much as possible across the levels to find the co-optimization opportunities. For the topic of digital RF, anything else simply does not make sense. What may look mathematically very attractive is not always implementable. Straightforward implementations often don’t meet the performance requirements. System-circuit co-design is the answer in that case. Also RF-PA and digital modulator co-design is required. We set first steps in this.Digital Transmitter Architectures: Overview.
High-Level Analysis of Fully Digital PWM Transmitters.
Continuous-Time Digital Design Techniques.
A 65-nm CMOS Fully Digital Reconfigurable Transmitter Front-End for Class-E PA Based on Baseband PWM.
A 40-nm CMOS Fully Digital Reconfigurable Transmitter with Class-D PAs Using Baseband and RF PWM.
Conclusions and Future Work.
A: Definitions, Conventions and Overview of Used Theory.
B: Derivations and Considerations Regarding PWM.