Smart Materials Design for Electromagnetic Interference Shielding Applications
Smart Materials Design for Electromagnetic Interference Shielding Applications

Author: Sundeep K. Dhawan

Publisher: Bentham Science Publishers

Published: 2022-11-08

Total Pages: 594

ISBN-13: 9815036432

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With the rapid developments in microchips, mobile communication and satellite communication, electromagnetic interference (EMI) or Radio Frequency Interference (RFI) has received significant attention to ensure high performance of electronic items and to avoid any adverse effect on human health. EMI is one of the main factors that weaken electronic system performance and is considered as a modern form of environmental pollution. Many efforts have been made to reduce EMI, including industrial regulations and R&D funding.The expansion of the IT industry has promoted the development of microwave absorbing materials (MAMs) and EMI shielding materials to improve the resistance of smart devices to EMI. This book presents a comprehensive review of the recent developments in EMI shielding and the design of microwave absorbing materials. Chapters cover the basic mechanism of shielding and radiation absorption, measurement procedures, factors affecting the shielding and different materials for shielding and absorption (e.g. MWCNT, conjugated polymers, graphene, MXene based hybrid materials, Carbon foam, graphene based thermoplastic polyurethane nanocomposites, carbon-carbon composites, nano ferrite composites and conducting Ferro fluids). An analysis of EMI shielding using fillers composed of different materials is also presented. In addition, key issues and current challenges to achieve better shielding and absorption performance for various materials are explained, giving the readers a broader perspective of the subject. The book is suitable as a detailed reference for students in electronics engineering, materials science and other technical courses, and professionals working on materials for designing EMI shielding mechanisms.

Fundamentals of EM Design of Radar Absorbing Structures (RAS)
Fundamentals of EM Design of Radar Absorbing Structures (RAS)

Author: Hema Singh

Publisher: Springer

Published: 2017-10-25

Total Pages: 64

ISBN-13: 9811050805

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This book presents a detailed analytical formulation, and step-by-step design procedure for the electromagnetic (EM) design of radar absorbing structures (RAS). It discusses both the equivalent circuit model and Smith chart approach with illustrations to provide a clear understanding of the steps involved in designing multilayered RAS according to the desired specifications. This book is a valuable resource for beginners, academicians, and R&D engineers working in the field of RAS design and development.

Radar Absorbing Materials
Radar Absorbing Materials

Author: K.J. Vinoy

Publisher: Springer

Published: 1996-08-31

Total Pages: 216

ISBN-13:

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Radar absorbing materials offers an electromagnetic (EM) perspective to the evolution of radar absorbing materials (RAM). The major aspects covered are the EM analysis, design, fabrication and characterization of RAM. This is followed by an exhaustive discussion on the application areas and current trends in RAM. All the major aspects of RAM technology are covered in this book. The analytical techniques are developed from first principles.

Optimization of Multilayered Radar Absorbing Structures (RAS) using Nature Inspired Algorithm
Optimization of Multilayered Radar Absorbing Structures (RAS) using Nature Inspired Algorithm

Author: Vineetha Joy

Publisher: CRC Press

Published: 2021-07-19

Total Pages: 64

ISBN-13: 1000409058

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Stealth technology is a crucial pre-requisite in the combat zone, where swiftness, surprise and initiative are the decisive elements for survivability. The supreme goal here is to reduce the visibility of military vehicles by shaping, application of radar absorbing materials, passive cancellation, active cancellation etc. With respect to multilayered radar absorbing structures (RAS), this book presents an efficient algorithm based on particle swarm optimization (PSO), for the material selection as well as optimization of thickness of multilayered RAS models considering both normal as well as oblique incidence cases. It includes a thorough overview of the theoretical background required for the analysis of multilayered RAS as well as the step-by-step procedure for the implementation of PSO-based algorithm. The accuracy and computational efficiency of the indigenously developed code is also clearly established using relevant validations and case studies. FEATURES Provides step-by-step procedure for the implementation of particle swarm optimization (PSO) based algorithm in the context of multilayered radar absorbing structures (RAS) design Helps to understand the EM design, analysis and optimization of multilayered RAS Describes the theoretical background required for the analysis of multilayered RAS Illustrates in detail the theoretical formulation supported by intuitive ray diagrams and comprehensive flowcharts to implement the algorithm with ease Includes elaborate validations and case studies This book will serve as a valuable resource for students, researchers, scientists, and engineers involved in the electromagnetic design and development of multi-layered radar absorbing structures.

Advanced Materials for Electromagnetic Shielding
Advanced Materials for Electromagnetic Shielding

Author: Maciej Jaroszewski

Publisher: John Wiley & Sons

Published: 2018-11-29

Total Pages: 464

ISBN-13: 1119128617

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A comprehensive review of the field of materials that shield people and sensitive electronic devices from electromagnetic fields Advanced Materials for Electromagnetic Shielding offers a thorough review of the most recent advances in the processing and characterization of the electromagnetic shielding materials. In this groundbreaking book, the authors—noted experts in the field—discuss the fundamentals of shielding theory as well as the practice of electromagnetic field measuring techniques and systems. They also explore applications of shielding materials used as absorbers of electromagnetic radiation, or as magnetic shields and explore coverage of new advanced materials for EMI shielding in aerospace applications. In addition, the text contains methods of preparation and applicability of metal foams. This comprehensive text examines the influence of technology on the micro-and macrostructure of polymers enabling their use in screening technology, technologies of shielding materials based on textiles, and analyses of its effectiveness in screening. The book also details the method of producing nanowires and their applications in EM shielding. This important resource: Explores the burgeoning market of electromagnetic shielding materials as we create, depend upon, and are exposed to more electronic devices than ever Addresses the most comprehensive issues relating to electromagnetic fields Contains information on the manufacturing, characterization methods, and properties of materials used to protect against them Discusses the important characterization techniques compared with one another, thus allowing scientists to select the best approach to a problem Written for materials scientists, electrical and electronics engineers, physicists, and industrial researchers, Advanced Materials for Electromagnetic Shielding explores all aspects in the area of electromagnetic shielding materials and examines the current state-of-the-art and new challenges in this rapidly growing area.

Applications of Bat Algorithm and its Variants
Applications of Bat Algorithm and its Variants

Author: Nilanjan Dey

Publisher: Springer Nature

Published: 2020-06-09

Total Pages: 182

ISBN-13: 9811550972

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This book highlights essential concepts in connection with the traditional bat algorithm and its recent variants, as well as its application to find optimal solutions for a variety of real-world engineering and medical problems. Today, swarm intelligence-based meta-heuristic algorithms are extensively being used to address a wide range of real-world optimization problems due to their adaptability and robustness. Developed in 2009, the bat algorithm (BA) is one of the most successful swarm intelligence procedures, and has been used to tackle optimization tasks for more than a decade. The BA’s mathematical model is quite straightforward and easy to understand and enhance, compared to other swarm approaches. Hence, it has attracted the attention of researchers who are working to find optimal solutions in a diverse range of domains, such as N-dimensional numerical optimization, constrained/unconstrained optimization and linear/nonlinear optimization problems. Along with the traditional BA, its enhanced versions are now also being used to solve optimization problems in science, engineering and medical applications around the globe.

Nanostructured Hexagonal Ferrites
Nanostructured Hexagonal Ferrites

Author: Susheel Kalia

Publisher: Elsevier

Published: 2024-06-18

Total Pages: 384

ISBN-13: 0443185573

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Nanostructured Hexagonal Ferrites: Novel Characteristics and Multifunctional Applications presents the latest advances in hexaferrite nanostructures, which offer reliability, stability, and efficiency in a range of advanced applications. The book begins by introducing the structure, characteristics, fabrication, processing, characterization methods, and composites of hexagonal ferrites in detail. Solid-state chemistry and magnetic, magnetoelectric, multiferroic, and dielectric properties are examined. Subsequent chapters then provide in-depth coverage of the preparation of nanohexaferrites with specific properties for target applications, in areas such as magnetic energy storage, high-frequency devices, microwave devices, stealth technologies, gyromagnetic devices, and wastewater remediation. This is a valuable resource for researchers and advanced students across nanotechnology, polymer science, composite science, chemistry, and materials science and engineering, as well as industrial scientists, engineers, and R&D professionals with an interest in hexaferrites and advanced nanostructures for advanced applications. - Introduces fabrication, characterization, processing, and preparation methods for hexagonal ferrites - Analyzes structure and properties of nanohexaferrites and their suitability in a range of applications - Opens the door to novel utilizations across electronic devices, energy storage, and wastewater remediation

Metamaterials-by-Design
Metamaterials-by-Design

Author: Andrea Alù

Publisher: Elsevier

Published: 2024-04-04

Total Pages: 402

ISBN-13: 0323983146

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Metamaterials-by-Design: Theory, Technologies, and Vision is devoted to a comprehensive review of the latest advancements and current trends in the field of system-level-oriented metamaterial design methods, technologies, and future perspectives. Starting from the theoretical and methodological motivations of this research to macro-scale performance-driven design of volumetric and planar metamaterials, the book introduces advanced task-oriented modeling approaches, including specific reference to their multi-scale/ multi-physics customization in recent metamaterial science and engineering. In the introduction of these concepts, particular attention is paid to the illustration of the physical mechanisms and phenomena at the basis of the field manipulation capabilities enabled by metamaterials. Contributions from industry and academic perspectives on active and passive metamaterial-enhanced devices for communications and sensing are included. The final part of the volume is aimed at providing a perspective regarding the current trends, future research and application tracks in system-performance-driven metamaterial design methodologies and technologies, included potential applications in future reconfigurable and cognitive materials. - Includes comprehensive review of the research developments, methodologies, and opportunities in the field of metamaterials-by-design - Discusses new and emerging applications of metamaterials in microwave and terahertz spectrum, photonics, and optics scenarios - Reviews performance-driven metamaterial design methodologies and technologies in communications and sensing