Doherty Power Amplifiers: From Fundamentals to Advanced Design Methods is a great resource for both RF and microwave engineers and graduate students who want to understand and implement the technology into future base station and mobile handset systems. The book introduces the very basic operational principles of the Doherty Amplifier and its non-ideal behaviors. The different transconductance requirements for carrier and peaking amplifiers, reactive element effect, and knee voltage effect are described. In addition, several methods to correct imperfections are introduced, such as uneven input drive, gate bias adaptation, dual input drive and the offset line technique. Advanced design methods of Doherty Amplifiers are also explained, including multistage/multiway Doherty power amplifiers which can enhance the efficiency of the amplification of a highly-modulated signal. Other covered topics include signal tracking operation which increases the dynamic range, highly efficient saturated amplifiers, and broadband amplifiers, amongst other comprehensive, related topics.

This book presents various techniques to carry out the gait modeling, the gait patterns synthesis, and the control of biped robots. Some general information on the human walking, a presentation of the current experimental biped robots, and the application of walking bipeds are given. The modeling is based on the decomposition on a walking step into different sub-phases depending on the way each foot stands into contact on the ground. The robot design is dealt with according to the mass repartition and the choice of the actuators. Different ways to generate walking patterns are considered, such as?passive walking and gait synthesis performed using optimization technique. Control based on the robot modeling, neural network methods, or intuitive approaches are presented. The unilaterality of contact is dealt with using on-line adaptation of the desired motion.

This book presents the outcomes of the workshop sponsored by the National Natural Sciences Foundation of China and the UK Newton Fund, British Council Researcher Links. The Workshop was held in Harbin, China, from 14 to 17 July 2017, and brought together some thirty young (postdoctoral) researchers from China and the UK specializing in geosciences, sensor signal networks and their applications to natural disaster recovery. The Workshop presentations covered the state of the art in the area of disaster recovery and blended wireless sensor systems that act as early warning systems to mitigate the consequences of disasters and function as post-disaster recovery vehicles. This book promotes knowledge transfer and helps readers explore and identify research opportunities by highlighting research outcomes in the internationally relevant area of disaster recovery and mitigation.

Micro-nanoelectronics Devices: Modeling of Diffusion and Operation Processes concentrates on the modeling of diffusion processes and the behavior of modern integrated components, from material, to architecture. It goes through the process, the device and the circuit regarding today's widely discussed nano-electronics, both from an industry perspective and that of public entities.

Handbook of Silicon Wafer Cleaning Technology, Third Edition, provides an in-depth discussion of cleaning, etching and surface conditioning for semiconductor applications. The fundamental physics and chemistry associated with wet and plasma processing are reviewed, including surface and colloidal aspects. This revised edition includes the developments of the last ten years to accommodate a continually involving industry, addressing new technologies and materials, such as germanium and III-V compound semiconductors, and reviewing the various techniques and methods for cleaning and surface conditioning. Chapters include numerous examples of cleaning technique and their results. The book helps the reader understand the process they are using for their cleaning application and why the selected process works. For example, discussion of the mechanism and physics of contamination, metal, particle and organic includes information on particle removal, metal passivation, hydrogen-terminated silicon and other processes that engineers experience in their working environment. In addition, the handbook assists the reader in understanding analytical methods for evaluating contamination. The book is arranged in an order that segments the various cleaning techniques, aqueous and dry processing. Sections include theory, chemistry and physics first, then go into detail for the various methods of cleaning, specifically particle removal and metal removal, amongst others.

Achieve first-time-success designing RF and microwave amplifiers and oscillators using the iterative synthesis techniques provided in this practical resource. The book introduces new approaches to help you estimate the 1dB compression point of class A and class B linear circuits, initialize the fundamental component voltages and currents in a harmonic balance simulator, and more easily generate load-pull contours for class A and class B transistors.

Considered as a generalization of the Cripps approach, this independently developed method can be applied easily to control or predict the output power in single- or multi-stage amplifiers. Changes in the transistor's configuration, as well as feedback and loading can also be handled smoothly.

This book helps you:
gain greater insight into the characteristics of single-layer parallel plate capacitors and provide accurate models for them
obtain a clear picture of the stability of each stage in the amplifier and control the output power and oscillation frequency of an oscillator based on linear principles
design class A high dynamic range amplifiers, multistage power amplifiers, amplifiers with an optimum noise match and a low input VSWR, and wideband impedance-matching networks

The book also includes all of the design principles, theory, and background from the well-received first edition. It is an excellent resource for amplifier and oscillator designers, RF and microwave engineers, and university students.

This book focuses on the design, implementation and applications of embedded systems and advanced industrial controls with microcontrollers. It combines classical and modern control theories as well as practical control programming codes to help readers learn control techniques easily and effectively. The book covers both linear and nonlinear control techniques to help readers understand modern control strategies. The author provides a detailed description of the practical considerations and applications in linear and nonlinear control systems. They concentrate on the ARM (R) Cortex (R)-M4 MCU system built by Texas Instruments (TM) called TM4C123GXL, in which two ARM (R) Cortex (R)-M4 MCUs, TM4C123GH6PM, are utilized. In order to help the reader develop and build application control software for a specified microcontroller unit. Readers can quickly develop and build their applications by using sample project codes provided in the book to access specified peripherals. The book enables readers to transfer from one interfacing protocol to another, even if they only have basic and fundamental understanding and basic knowledge of one interfacing function. Classical and Modern Controls with Microcontrollers is a powerful source of information for control and systems engineers looking to expand their programming knowledge of C, and of applications of embedded systems with microcontrollers. The book is a textbook for college students majored in CE, EE and ISE to learn and study classical and modern control technologies. The book can also be adopted as a reference book for professional programmers working in modern control fields or related to intelligent controls and embedded computing and applications. Advances in Industrial Control reports and encourages the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.

This book presents the most important tools, techniques, strategy and diagnostic methods used in industrial engineering. The current widely accepted methods of diagnosis and their properties are discussed. Also, the possible fruitful areas for further research in the field are identified.

Spacecraft Dynamics and Control: The Embedded Model Control Approach provides a uniform and systematic way of approaching space engineering control problems from the standpoint of model-based control, using state-space equations as the key paradigm for simulation, design and implementation. The book introduces the Embedded Model Control methodology for the design and implementation of attitude and orbit control systems. The logic architecture is organized around the embedded model of the spacecraft and its surrounding environment. The model is compelled to include disturbance dynamics as a repository of the uncertainty that the control law must reject to meet attitude and orbit requirements within the uncertainty class. The source of the real-time uncertainty estimation/prediction is the model error signal, as it encodes the residual discrepancies between spacecraft measurements and model output. The embedded model and the uncertainty estimation feedback (noise estimator in the book) constitute the state predictor feeding the control law. Asymptotic pole placement (exploiting the asymptotes of closed-loop transfer functions) is the way to design and tune feedback loops around the embedded model (state predictor, control law, reference generator). The design versus the uncertainty class is driven by analytic stability and performance inequalities. The method is applied to several attitude and orbit control problems.

Here it is--a collection of Forrest Mims's classic work from the original Popular Electronics magazine Using commonly available components and remarkable ingenuity, Forrest shows you how to build and experiment with circuits like these:
analog computers
color organs
digital phase-locked loops
frequency-to-voltage and voltage-to-frequency converters
interval timers
LED oscilloscopes
light wave communicators
magnetic field sensors
optoelectronics
pseudorandom number generators
tone sequencers
and much, much, more

This thesis describes the design, development, characterisation and clinical translation of three novel devices for optical endoscopic imaging. Over the past decade, rapid innovation in optics and photonics has led to the availability of low-cost and high-performance optical technologies that can be exploited for biomedical applications, but relatively few have been translated into clinic. The work presented outlines for the first time, a comprehensive analysis of the common barriers and unique challenges associated with the translation of optical imaging techniques. To assist developers streamline translation of optical imaging devices in future, a roadmap to clinical translation is outlined, and key translational characteristics are defined. Guided by these, subsequent development of endoscopic devices resulted in preparation and approval of endoscopes for first in human trials in the oesophagus, for early detection of cancer, and in the brain, for delineation of tumour during surgical resection. The thesis culminates in the presentation of results from the first in human use of a compact multispectral endoscope for imaging endogenous tissue contrast in the oesophagus. With continuation of the work as outlined at the end of this thesis, the novel techniques described have the potential to improve the standard of care in their respective indications.

The art of RF circuit design made simple...

Radio Frequency circuits are the fundamental building blocks in a vast array of consumer electronics and wireless communication devices. Jeremy Everard's unique combination of theory and practice provides insight into the principles of operation, together with invaluable guidance to developing robust and long-lasting circuit designs.

Features include:

• Simplified approach to RF circuit theory and device modelling using algebraic approximations to illustrate the important underlying principles.
• A comprehensive design guide to low noise oscillators backed by a full theoretical treatment, based on the author's latest research, and including extensive design examples.
• Key concepts of broad and narrow band small signal amplifiers, mixers, and high-efficiency broadband power amplifier design.
• How to develop large signal circuit models with simulation and tuning in real time.
• Charts of performance parameters for RF chip components.

In the information age, telecommunications is the pillar of a strong economy. To developing countries, restructuring this industry is a necessary step toward integration into the world economy. Restructuring telecommunications, therefore, has been a pervasive issue in the economic reform programs of many countries in recent years. However, the nature of these changes has varied widely among these nations. "Unfinished Business" examines the process of reform in Mexico and contrasts it with that of the United States, Brazil, and New Zealand, examining both the economic and technological aspects of this highly complex situation.

Using interviews with key players in the policy process, Mariscal provides a detailed analysis of key elements and figures. Her multidisciplinary perspective allows for a full exploration of the international differences in telecommunications restructuring. Going beyond simply asking why privatization and deregulation policies were successfully implemented in Mexico, the work offers a comprehensive guide to the process and impact of policy choices on telecommunications development.

The only one-stop reference to design, analysis, and manufacturing concepts for power devices utilizing HTS.

High temperature superconductors (HTS) have been used for building many devices for electric grids worldwide and for large ship propulsion motors for the U.S. Navy. And yet, there has been no single source discussing theory and design issues relating to power applications of HTS--until now. This book provides design and analysis for various devices and includes examples of devices built over the last decade.

Starting with a complete overview of HTS, the subsequent chapters are dedicated to specific devices: cooling and thermal insulation systems; rotating AC and DC machines; transformers; fault current limiters; power cables; and Maglev transport. As applicable, each chapter provides a history of the device, principles, configuration, design and design challenges, prototypes, and manufacturing issues, with each ending with a summary of the material covered. The design analysis and design examples provide critical insight for readers to successfully design their own devices. Original equipment manufacturer (OEM) designers, industry and utilities users, universities and defense services research groups, and senior/postgraduate engineering students and instructors will rely on this resource.

"HTS technology reduces electric losses and increases the efficiency of power equipment. This book by Swarn Kalsi, a leading expert on the HTS subject, provides a survey of the HTS technology and the design rules, performance analyses, and manufacturing concepts for power application-related devices. It compares conventional and HTS technology approaches for device design and provides significant examples of devices utilizing the HTS technology today. The book is useful for a broad spectrum of professionals worldwide: students, teaching staff, and OEM designers as well as users in industry and electric utilities."
--Professor Dr. Rolf Hellinger, Research and Technologies Corporate Technology, Siemens AG

Handbook of Thin Film Deposition, Fourth Edition, is a comprehensive reference focusing on thin film technologies and applications used in the semiconductor industry and the closely related areas of thin film deposition, thin film micro properties, photovoltaic solar energy applications, materials for memory applications and methods for thin film optical processes. The book is broken up into three sections: scaling, equipment and processing, and applications. In this newly revised edition, the handbook will also explore the limits of thin film applications, most notably as they relate to applications in manufacturing, materials, design and reliability.

Some of the most original and productive research specialists in the field of particle-fluid flow systems are assembled in this book, which is an important and current reference volume. It focuses on methods of measurement and options for those performing research and evaluation of particle-fluid flow systems such as pneumatic conveying. The systems and techniques covered in the text cover a wide range of particle sizes and concentrations, from tracers to packed beds.

As seen in this book, the increased use of computers, high sampling frequency and the non-invasive measurements make possible measurements of both average properties and their fluctuations. The trend toward non-invasive measurements based on acoustics, laser, nuclear, and electromagnetic devices is focused upon throughout the text.

Key Features:

- Covers the latest trends in measurement techniques.

- Serves as reference, guide, and text for academic courses.

- Authors include the most productive and original researchers in the field.

Robotic and mechatronic systems, autonomous vehicles, electric power systems and smart grids, as well as manufacturing and industrial production systems can exhibit complex nonlinear dynamics or spatio-temporal dynamics which need to be controlled to ensure good functioning and performance. In this comprehensive reference, the authors present new and innovative control and estimation methods and techniques based on dynamical nonlinear and partial differential equation systems. Such results can be classified in five main domains for the control of complex nonlinear dynamical systems using respectively methods of approximate (local) linearization, methods of exact (global) linearization, Lyapunov stability approaches, control and estimation of distributed parameter systems and stochastic estimation and fault diagnosis methods. Control and Estimation of Dynamical Nonlinear and Partial Differential Equation Systems: Theory and applications will be of interest to electrical engineering, physics, computer science, robotics and mechatronics researchers and professionals working on control problems, condition monitoring, estimation and fault diagnosis and isolation problems. It will also be useful to skilled technical personnel working on applications in robotics, energy conversion, transportation and manufacturing.

Over the past decade, the Command and Control (C2) field has been making a transformation from top-down, directive command to Network Centric Operations (NCO), peer-to-peer negation, self-synchronization, and agility. As the terms NCO and NEC suggest, C2 systems are regarded as networks, rather than a hierarchy. Accordingly, it is appropriate to view the C2 process and C2 systems through the lens of network theory. Network Topology in Command and Control: Organization, Operation, and Evolution aims to connect the fields of C2 and network science. Featuring timely research on topics pertaining to the C2 network evolution, security, and modelling, this publication is ideal for reference use by students, academicians, and security professionals in the fields of C2 and network science.

This book describes for readers various technical outcomes from the EU-project IoSense. The authors discuss sensor integration, including LEDs, dust sensors, LIDAR for automotive driving and 8 more, demonstrating their use in simulations for the design and fabrication of sensor systems. Readers will benefit from the coverage of topics such as sensor technologies for both discrete and integrated innovative sensor devices, suitable for high volume production, electrical, mechanical, security and software resources for integration of sensor system components into IoT systems and IoT-enabling systems, and IoT sensor system reliability. Describes from component to system level simulation, how to use the available simulation techniques for reaching a proper design with good performance; Explains how to use simulation techniques such as Finite Elements, Multi-body, Dynamic, stochastics and many more in the virtual design of sensor systems; Demonstrates the integration of several sensor solutions (thermal, dust, occupancy, distance, awareness and more) into large-scale system solutions in several industrial domains (Lighting, automotive, transport and more); Includes state-of-the-art simulation techniques, both multi-scale and multi-physics, for use in the electronic industry.

The continuing growth of wireless networks is being driven by ease of installation, flexibility and mobility, offering gains in efficiency, accuracy and lower business costs. This fresh perspective from two experts in the field provides professionals with a practical approach to design implementation, evaluation and problem-solving, which underscores its uniqueness as a hands-on guide to next generation wireless communications systems. The book offers practitioners a wealth of information on WLAN (wireless local area network) implementation, deployment and results. Key topics include: IP networking for wireless; wireless networking and Internet access standards; changes in the IEEE 802.11 standard; system design and implementation; and performance analysis.

"God made solids, but surfaces were the work of the devil." This statement by Nobel prize winner Wolfgang Paul emphasizes the diabolic nature of surfaces. Since surface properties deviate significantly from the bulk solid state, surface studies can be puzzling, misleading, and quite exciting! This book is an introduction to the basics of surface science including thermodynamics, surface structure, experimental probes, spectroscopy, microscopy, and ion-scattering. Surfaces are the external border of materials to the external worlds, thus by exploring surfaces one can investigate the material.