Bøger af Arthur H. M. Van Roermund

Today, wireless infrared transmission has entered our homes, offices, industry and health care, with applications in the field of remote control, telemetry, and local communication. This book is about the underlying technology. As it is an outgrowth of my Ph.D. thesis, the emphasis is on fundamental aspects rather than industrial aspects, like the standardization effort by the IrDA [7]. I guess that this is not a drawback, as, eventually, the laws of physics apply to all of us! As the applied radiation is not necessarily in the infrared, throughout the book we usually prefer the term optical transmission. As most equipment is battery-powered, the emphasis is on power optimiza- tion of the optical transmission system. System parameters as well as environ- mental parameters that determine the eventual transmission quality are iden- tified, to facilitate well-reasoned system design. Many design rules, based on calculations, measurements and simulations are presented to help the designer push the performance close to the limits set by nature and the available tech- nology. The first chapters introduce the subject and the present the scope of the book. Then, the basic transmission link is introduced in chapter 3, and strate- gies to optimize its signal-to-noise ratio are discussed. Lighting flicker is identi- fied as a possible source of interference. Then, receiver noise and bandwidth are discussed in chapter 4, mainly based on the material presented in [66], [67], [69].

Log-domain and translinear filters provide a competitive alternative to the challenges of ever increasing low-voltage, low-power and high frequency demands in the area of continuous-time filters. Since translinear filters are fundamentally large-signal linear, they are capable of realizing a large dynamic range in combination with excellent tunability characteristics. Large-signal linearity is achieved by exploiting the accurate exponential behavior of the bipolar transistor or the subthreshold MOS transistor. A generalization of the dynamic translinear principle exploiting the square law behavior of the MOS transistor is theoretically possible, but not practically relevant. Translinear and log-domain filters are based on the dynamic translinear principle, a generalization of the conventional (static) translinear principle. Besides their application for linear filters, dynamic translinear circuits can also be used for the realization of non-linear dynamic functions, such as oscillators, RMS-DC converters and phase-locked loops. Dynamic Translinear and Log-Domain Circuits: Analysis and Synthesis covers both the analysis and synthesis of translinear circuits. The theory is presented using one unifying framework for both static and dynamic translinear networks, which is based on a current-mode approach. General analysis methods are presented, including the large-signal and non-stationary analysis of noise. A well-structured synthesis method is described greatly enhancing the designability of log-domain and translinear circuits. Comparisons are made with respect to alternative analysis and synthesis methods presented in the literature. The theory is illustrated and verified by various examples and realizations. Dynamic Translinear and Log-Domain Circuits: Analysis and Synthesis is an excellent reference for researchers and circuit designers, and may be used as a text for advanced courses on the topic.

This book describes new approaches to fabricate complementary organic electronics and focuses on the design of circuits and practical systems created using these manufacturing approaches.

This book addresses the challenges of designing high performance analog-to-digital converters (ADCs) based on the "smart data converters" concept, which implies context awareness, on-chip intelligence and adaptation.

This book illustrates a variety of circuit designs on plastic foils and provides all the information needed to undertake successful designs in large-area electronics.

This book presents the cross-layer design and optimization of wake-up receivers for wireless body area networks (WBAN), with an emphasis on low-power circuit design.

This book describes a unique approach to smart receiver system design. It starts with the analysis of a very basic, single-path receiver structure, then using similar methods, extends the analysis to a more complicated multi-path receiver.

The promising high data rate wireless applications at millimeter wave frequencies in general and 60 GHz in particular have gained much attention in recent years. This book focuses on phase-locked loops for 60 GHz wireless transceivers.

Robust Sigma-Delta Converters studies how to deal with the ever increasing requirements on IP, and how the technological advances can be exploited with the right design methodology. The book's main objective is to explore implementation possibilities of high quality Sigma-Delta modulators.

The RF front-end - antenna combination is a vital part of a mobile phone. This book offers a unique account of adaptive RF front-ends. It includes an analysis on the impact of fluctuating environmental parameters, and a generic protection concept is presented.

This book covers architectural and circuit level solutions for ultra-low power, robust, uni-directional and bi-directional radio links. It guides the reader through the system, circuit and technology trade-offs faced in the design of communication systems.

With proposals for new concepts in the flexibility and self-correction of DACs that should enable a range of functional and performance specifications, this book's detailed coverage is ideal for seasoned professionals and newcomers to the field alike.

This title covers important physical-design issues that exist in contemporary analogue and mixed-signal design flows. The authors bring together many principles and techniques required to successfully develop and implement layout generation tools to accommodate many mixed-signal layout generation needs.