Electromagnetic Shielding

Electromagnetic Shielding
Author: Kenneth L. Kaiser
Publisher: CRC Press
Total Pages: 342
Release: 2005-09-13
Genre: Technology & Engineering
ISBN: 9780849363726

In chapters culled from popular and critically acclaimed Electromagnetic Compatibility Handbook, Electromagnetic Shielding provides a tightly focused, convenient, and affordable reference for those interested primarily in this subset of topics. Author Kenneth L. Kaiser demystifies shielding and explains the source and limitations of the approximations, guidelines, models, and rules-of-thumb used in this field. The material is presented in a unique question-and-answer format that gets straight to the heart of each topic. The book includes numerous examples and uses Mathcad to generate all of the figures and many solutions to equations. In many cases, the entire Mathcad program is provided.

Cable Shielding for Electromagnetic Compatibility

Cable Shielding for Electromagnetic Compatibility
Author: Anatoly Tsaliovich
Publisher: Springer Science & Business Media
Total Pages: 481
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 146156591X

The mathematical theory of wave propagation along a conductor with an external coaxial return is very old, going back to the work of Rayleigh, Heaviside, and J. J. Thomson. These words were written by S. A. Schelkunoff back in 1934. Indeed, those early works dealt with signal propagation along the line as well as electromagnetic shielding of the environment inside and/or outside the metallic enclosures. Max well himself developed pioneering studies of single-layer shielding shells, while a paper with such a "modern" title as "On the Magnetic Shielding of Concentric Spherical Shells" was presented by A. W Rucker as early as 1893! * Such "state of the art" shielding theory created in the last century is even more amazing if you think that at almost the same time (namely, in 1860s), a manuscript of Jules Verne's book, Paris in the. xx Century, was rejected by a publisher because it pre dicted such "outrageously incredible" electrotechnology as, for example, FAX service by wires and the electrocutioner's chair. (With regard to the last invention, I suspect many readers would rather Jules Verne has been wrong. ) However, although the beginning of electromagnetic shielding theory and its implementation to electronic cables date back more than a century, this dynamic field keeps constantly growing, driven by practical applications.

Advanced Materials for Electromagnetic Shielding

Advanced Materials for Electromagnetic Shielding
Author: Maciej Jaroszewski
Publisher: John Wiley & Sons
Total Pages: 464
Release: 2018-11-30
Genre: Technology & Engineering
ISBN: 1119128641

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.

Radiation Shields and Shielding

Radiation Shields and Shielding
Author: U.S. Atomic Energy Commission
Publisher:
Total Pages: 112
Release: 1961
Genre: Shielding (Radiation)
ISBN:

Included are 687 selected references to unclassified reports and scientific journal literature on radiation shields and shielding. Author, report number, and subject indexes are also included.

Electromagnetic Wave Absorption and Shielding Materials

Electromagnetic Wave Absorption and Shielding Materials
Author: Wei Lu
Publisher: CRC Press
Total Pages: 325
Release: 2024-07-12
Genre: Technology & Engineering
ISBN: 1040050689

This book reveals the latest research findings and innovations in electromagnetic wave absorption and shielding by exploring the design and application of absorbent materials, the optimization of shielding structures and the improvement of testing and evaluation methods. From conductive materials to magnetic materials, and composite materials to nanomaterials, Electromagnetic Wave Absorption and Shielding Materials details the characteristics and advantages of various absorbent materials and explains their applications in electromagnetic wave absorption and shielding. It then introduces the different methods of electromagnetic shielding, including structural shielding and material shielding. The book also studies experimental and testing techniques, including measurement methods and evaluation criteria for electromagnetic wave absorption performance. The book will be of interest to researchers and graduate students in electromagnetic compatibility, materials science and engineering.

Porous Nanocomposites for Electromagnetic Interference Shielding

Porous Nanocomposites for Electromagnetic Interference Shielding
Author: Sabu Thomas
Publisher: Elsevier
Total Pages: 527
Release: 2024-02-21
Genre: Technology & Engineering
ISBN: 032388606X

Porous Nanocomposites for Electromagnetic Interference Shielding thoroughly discusses the fabrication, processing and design parameters of advanced materials for electromagnetic pollution suppression for high-frequency electronics. The book provides readers with an understanding of the important concepts and relevant advances in the engineering of porous nanocomposites for enhanced microwave absorption and EMI shielding. Porous materials reviewed include foams and aerogels which offer a robust and lightweight solution to design and fabricate microwave absorbers that can be a potential solution to stifle electromagnetic (EM) pollution. The aim of this book is to review the recent advances in the area of porous nanocomposites that have the ability to absorb EM radiation and thereby suppress EM pollution. It will be ideal for materials scientists and engineers working in academia, research and development in industry. Reviews the latest advances in the fabrication, processing, and design of porous nanocomposites for enhanced microwave absorption and EMI shielding applications Provides key information on the most relevant porous nanocomposites for EMI shielding, including aerogels and foams derived from polymers, ceramics, carbon, and other advanced materials Discusses life cycle analysis and recycling considerations of porous nanocomposites

Smart Materials Design for Electromagnetic Interference Shielding Applications

Smart Materials Design for Electromagnetic Interference Shielding Applications
Author: Sundeep K. Dhawan
Publisher: Bentham Science Publishers
Total Pages: 594
Release: 2022-11-08
Genre: Technology & Engineering
ISBN: 9815036432

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.

Shielding of Electromagnetic Waves

Shielding of Electromagnetic Waves
Author: George M. Kunkel
Publisher: Springer
Total Pages: 92
Release: 2019-07-11
Genre: Technology & Engineering
ISBN: 3030192385

This book provides a new, more accurate and efficient way for design engineers to understand electromagnetic theory and practice as it relates to the shielding of electrical and electronic equipment. The author starts by defining an electromagnetic wave, and goes on to explain the shielding of electromagnetic waves using the basic laws of physics. This is a new approach for the understanding of EMI shielding of barriers, apertures and seams. It provides a reliable, systematic approach that is easily understood by design engineers for the purpose of packaging the electrical and electronic systems of the future. This book covers both theory and practical application, emphasizing the use of transfer impedance to explain fully the penetration of an electromagnetic wave through an EMI gasketed seam. Accurate methods of testing shielding components such as EMI gaskets, shielded cables and connectors, shielded air vent materials, conductive glass and conductive paint are also covered. Describes in detail why the currently accepted theory of shielding needs improvement. Discusses the penetration of an electromagnetic wave through shielding barrier materials and electromagnetic interference (EMI) gasketed seams. Emphasizes the use of transfer impedance to explain the penetration of an electromagnetic wave through an EMI gasketed seam. The definition of an electromagnetic wave and how it is generated is included. Chapter in the book are included that reinforce the presented theory.