The rheological properties of magnetorheological (MR) materials, such as their viscosity and dynamic modulus, can be tuned or controlled by changing the intensity of the magnetic field using appropriate control schemes. Thanks to their robustness, performance and smart properties, numerous studies have been undertaken on the development of new MR materials, and microscopic and macroscopic modelling approaches. Novel applications include engine mounts and clutch systems in the automotive industry, shock absorbing safety devices for cockpit seats in aerospace, and shock absorption from movement in semi-active human prosthetic legs.

Written as a collective work by 14 outstanding microsystems packaging specialists from US industries, government laboratories and universities, MEMS Packaging provides a comprehensive view of the prevalent practices and enabling techniques in the assembly, packaging and testing of MEMS and microsystems. The book also addresses aspects of microassembly and testing technologies that are often overlooked.

The use of MEMS resonators for signal processing is relatively new and has the potential to change the topology of newer generation circuits. New materials, design and fabrication processes, and integration with conventional circuitry will need to be considered.

The book is entirely dedicated to the exploration of time-domain electromagnetic fields in the presence of thin, high contrast sheets, with an emphasis on metasurfaces combining magnetic and dielectric properties.

This thoroughly updated third edition of this popular book covers all types of printed microstrip antenna design, from rectangular to circular, broadband and dual band, and millimeter wave microstrip antenna to microstrip arrays.

The approach in this book is historical and practical. It covers basic designs in more detail than other microstrip antenna books that tend to skip important electrical properties and implementation aspects of these types of antennas. Examples include: quarter-wave patch, quarter by quarter patch, detailed design method for rectangular circularly polarized patch, the use of the TM11 (linear and broadside CP), TM21 (monopole CP pattern) and TM02 (monopole linear) circular patch modes in designs, dual-band antenna designs which allow for independent dual-band frequencies. Limits on broadband matching are discussed. The appendix contains useful simple matching approaches, design details (gain, matching, sidelobes) of the little-studied omnidirectional microstrip antenna (OMA), limits and properties of common single and dual band Planar Inverted F Antenna (PIFA) antenna designs. The second edition has numerous additions to the earlier text which will make the concepts presented clearer. New cavity model analysis equations of circular polarization bandwidth, axial ratio bandwidth and power fraction bandwidth have been included. The section on omnidirectional microstrip antennas is expanded with further design options and analysis. This is also true of the section on Planar Inverted F (PIFA) antennas. The discovery and description of the fictious resonance mode of a microstrip slot antenna has been added to that section. Appendix A, on microstrip antenna substrates has been expanded to provide more detail on the types of substrate and their composition. This is often neglected in other texts. An appendix on elementary impedance matching techniques has been added as these methods have proven useful in my industrial work.

In the past few years, the concept of creating microwave antennas using microstrip has attracted increasing attention and viable practical designs are now emerging. The purpose of this monograph is to present the reader with an appreciation of the underlying physical action, up-to-date theoretical treatments, useful antenna design approaches and the overall state-of-the-art situation. The emphasis is on antenna engineering design, but to achieve this goal it has been necessary to delve into the behaviour of microstrip in a much wider sense and also include aspects of electromagnetic analysis. As a consequence, the monograph will also be of interest to microstrip circuit designers and to some extent those seeking electromagnetic problems of a challenging nature.

Microwave Antenna Theory and Design is an unabridged reprint of the book published by McGraw Hill, as Volume 12 of the MIT Radiation Laboratory Series in 1949. The Editor of the Volume, the late Professor Samuel Silver, contributed extensively to the text and subsequently became one of the best known people in the world of radio science.

No system in science or engineering can be successfully designed, analysed and specified unless it is backed up by precise quantitative measurements. This is particularly difficult in the field of microwaves where, more often than not, the parameter(s) of interest cannot be observed directly but must be inferred from the measurement of other related parameters. Although the advent of the automated network analyser has eliminated much of the previous drudgery, the problems of interpreting the digitally displayed information still remain. One purpose of this book is to provide the reader with a thorough understanding of the microwave circuit model and its limitations, and thus eliminate the many potential pitfalls that otherwise await the unwary experimenter.

This book covers the use of devices in microwave circuits and includes such topics as semiconductor theory and transistor performance, CAD considerations, intermodulation, noise figure, signal handling, S-parameter mapping, narrow- and broadband techniques, packaging and thermal considerations. Perhaps the most comprehensive text on GaAs FET technology and its practical application. It covers the use of MESFET devices in microwave circuits, such as low-noise amplifiers, mixers, oscillators, power amplifiers, switches and multipliers. This text is a classic reference for all engineers involved in the development of solid state microwave devices.

This book is the first comprehensive treatment of microwave horns and feeds for reflector antennas for use in satellite and terrestrial communications, radar and radio astronomy. The feed for a reflector antenna is a crucial component because the performance of the reflector depends on a good feed to collect or radiate signals.

The IET has organised training courses on microwave measurements since 1983, at which experts have lectured on modern developments. The purpose of this third edition of the lecture notes is to bring the latest techniques in microwave measurements to a wider audience. The book includes a survey of the theory of current microwave circuits as well as a description of the techniques for the measurement of power, spectrum, attenaution, circuit parameters, and noise, measurements of antenna characteristics, free fields, modulation and dielectric parameters. The emphasis throughout is on good measurement practice. All the essential theory is given and a previous knowledge of the subject is not assumed. The book will be of interest to those engaged in the design of microwave measurement systems in both research and industry, those providing microwave measurement systems in both research and industry, in measurement services and those involved in teaching microwave measurements in universities.

This book is a treatise on EW receivers that is relevant to you if you are just looking for a top-level insight into EW receivers or need to know the intricate details of cause and effect behavior in EW receiver theory and design. The book begins with a general discussion of EW receivers in their functional context and then goes into just the right amount of detail about the theoretical characteristics common to all receiver designs. Examples of this include receiver design issues impacting probability of detection, false alarm rate, and dynamic range performance. Tsui then describes the important characteristics of key emitter parameters to be measured by an EW receiver. He goes on to systematically cover each of the types of EW receivers by dedicating a chapter to each in well-organized and exquisite detail.

A compendium of data for computing the characteristic impedance of transmission lines based on physical dimensions. This book covers both conventional structures and unusual geometries, including coaxial, eccentric and elliptic coaxial, twin-wire, wire-above-ground, microstrip and derivatives, stripline, slabline and trough line. Also details numerous configurations of coupled lines.

Thanks to advances in power electronics device design, digital signal processing technologies and energy efficient algorithms, ac motors have become the backbone of the power electronics industry. Variable frequency drives (VFD's) together with IE3 and IE4 induction motors, permanent magnet motors, and synchronous reluctance motors have emerged as a new generation of greener high-performance technologies, which offer improvements to process and speed control, product quality, energy consumption and diagnostics analytics.

Parameter estimation is the process of using observations from a system to develop mathematical models that adequately represent the system dynamics. The assumed model consists of a finite set of parameters, the values of which are calculated using estimation techniques. Most of the techniques that exist are based on least-square minimisation of error between the model response and actual system response. However, with the proliferation of highspeed digital computers, elegant and innovative techniques like filter error method, genetic algorithms and artificial neural networks are finding more and more use in parameter estimation problems. Modelling and Parameter Estimation of Dynamic Systems presents a detailed examination of many estimation techniques and modelling problems.

IEC 61499 is a standard for modelling distributed control systems for use in industrial automation, and is already having an impact on the design and implementation of industrial control systems that involve the integration of programmable logic controllers, intelligent devices and sensors.

New technologies and standards are emerging which will have a dramatic effect on the design and implementation of future industrial control systems. PLCs and PC-based soft controllers are beginning to use software components, for example function blocks, to business systems. New tools and techniques are needed to design and model these systems, such as UML and modern fieldbus technology. The IEC 61499 standard has been developed specifically to model distributed control systems. Practical tools based on IEC 61499 are likely to emerge soon to model, validate and simulate the behaviour of complex networks of function blocks and it is expected that this standard will become key to highly-developed distributed systems.

Modelling Methodologies in Analogue Integrated Circuit Design provides a holistic view of modelling for analogue, high frequency, mixed signal, and heterogeneous systems for designers working towards improving efficiency, reducing design times, and addressing the challenges of representing aging, variability, and other technical challenges at the nanometre scale.

A comprehensive tutorial on active filter design analysis and design procedures. This book covers: Basic systems classifications together with filter transmission and approximations; Operational amplifiers, including bipolar and MOS integrators; Definitions of sensitivity and statistical sensitivity measures; Continuous-time second-order active sections; Higher-order filter design; Switched capacitor filters.

Segmenting the environment surrounding an autonomous vehicle into coherently moving regions is a vital first step towards intelligent autonomous navigation. Without this temporal information, navigation becomes a simple obstacle avoidance scheme that is inappropriate in highly dynamic environments such as roadways and places where many people congregate.

Non-destructive testing (NDT) analysis techniques are used in science, technology and medicine to evaluate the properties of a material, component or system, without causing damage or altering the article being inspected. It is a highly valuable technique that can save money and time in product evaluation, troubleshooting, and research. Well known and widely used in industrial applications since the 60s, the NDT market is developing and growing fast. This book focuses on electromagnetic NDT methods and more specifically on the motion induced eddy current testing and evaluation (MIECTE) techniques used for conductive materials via electromagnetic methods, focusing on the Lorentz force eddy current testing (LET) method which was introduced recently. The authors present the modelling and simulation of LET systems as well as the optimal design of the measurement setups. They also show the wide variety of applications of the LET method including defect identification and sigmometry to estimate electrical conductivity of the tested material.