Shielding of Electromagnetic Waves

Shielding of Electromagnetic Waves PDF Author: George M. Kunkel
Publisher: Springer
ISBN: 3030192385
Category : Technology & Engineering
Languages : en
Pages : 87

Book Description
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.

Composition for Shielding Electromagnetic Waves

Composition for Shielding Electromagnetic Waves PDF Author: Y. Tachibana
Publisher:
ISBN:
Category :
Languages : en
Pages : 14

Book Description


Two-Dimensional Materials for Electromagnetic Shielding

Two-Dimensional Materials for Electromagnetic Shielding PDF Author: Chong Min Koo
Publisher: John Wiley & Sons
ISBN: 3527348425
Category : Technology & Engineering
Languages : en
Pages : 224

Book Description
Discover a cutting-edge reference on 2D EMI shielding materials for both industrial and academic audiences Two-Dimensional Materials for Electromagnetic Shielding delivers a thorough and comprehensive examination of all aspects of electromagnetic interference (EMI) shielding and microwave absorption, including fundamentals and applications, as well as emerging 2D materials in the field, like graphene, black phosphorus, and MXene. The book covers basic knowledge on shielding mechanisms and the demanding physical, chemical, and mechanical properties of the 2D materials against betrayed electromagnetic waves. The benefits of novel 2D materials over existing materials is thoroughly explained and the reader is provided with insight into future developments in shielding materials in highly integrated electrical and electronic equipment. The book offers explanations and in-depth descriptions of graphene and MXenes materials, as well as likely future challenges that will confront practitioners in the field. Ideal for scientists, researchers, and engineers who design novel EMI shielding materials, the book also provides: A thorough introduction to electromagnetic field sources and their impact on human beings, including natural and artificial sources and their effects on human health An exploration of EMI shielding mechanism and conversion techniques, including microwave absorption mechanisms and scattering parameter conversion methods Discussions of measurements and standards in EMI shielding, including effectiveness measurements An examination of graphene and its derivatives for EMI shielding, as well as its effectiveness as a microwave absorber Perfect for materials scientists, electrochemists, inorganic chemists, physical chemists, and radiation chemists, Two-Dimensional Materials for Electromagnetic Shielding will also earn a place in the libraries of applied physicists and engineering scientists in industry seeking a one-stop reference on cutting-edge 2D electromagnetic interference shielding materials.

Shielding Effectiveness Against Electromagnetic Waves

Shielding Effectiveness Against Electromagnetic Waves PDF Author: Johan Catrysse
Publisher:
ISBN:
Category : Electromagnetic interference
Languages : en
Pages :

Book Description


Advanced Materials for Electromagnetic Shielding

Advanced Materials for Electromagnetic Shielding PDF Author: Maciej Jaroszewski
Publisher: John Wiley & Sons
ISBN: 1119128633
Category : Technology & Engineering
Languages : en
Pages : 464

Book Description
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.

Theory of Electromagnetic Shielding for Conducting Cylinders and Spheres

Theory of Electromagnetic Shielding for Conducting Cylinders and Spheres PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 119

Book Description
The shielding of electromagnetic waves by cylindrical and spherical enclosures is analyzed. The electromagnetic shielding effectiveness is calculated as a function of frequency for a plane wave incident on hollow cylindrical and spherical conducting shells. The electromagnetic resonances for the cylinder and the sphere are investigated and the resonance conditions are derived for both structures. In addition, a simple asymptotic formula for the shielding effectiveness is developed which is a good approximation in the resonance regime. Numerical calculations are performed for both the cylinder and the sphere, and the shielding effectiveness is plotted as a function of frequency for a shield with an outer diameter of 155 mm, a thickness of 0.1mm, and a conductivity of 10 to the 7th per ohm per meter.

Nanostructured Materials for Electromagnetic Interference Shielding

Nanostructured Materials for Electromagnetic Interference Shielding PDF Author: Sabu Thomas
Publisher: CRC Press
ISBN: 1000523608
Category : Technology & Engineering
Languages : en
Pages : 124

Book Description
Electromagnetic interference (EMI) shielding materials prevent the transmission of electromagnetic (EM) radiation by reflection and/or absorption or by suppression. Emerging nanomaterials can be used effectively for EMI shielding. This book explores all aspects of EMI materials and focuses on the most recent advances and trends in the synthesis, processing, and characterization of electromagnetic shielding materials. Fundamentals of shielding theory, the practice of electromagnetic field measuring techniques, some of the EMI standards, novel materials employed (like MXenes), and the application of these materials in various fields are discussed. Features: Provides a fundamental overview of EMI shielding and its effects on the environment and other electronics. Includes a comprehensive overview of the sources and effects of EM radiation. Explains the synthesis, characterization methods, and properties of materials used to protect against radiation. Gives insights into the physics of EMI shielding and its associated mechanisms. Examines the current state of the art and new challenges in this area. This book is aimed at researchers and engineers working in the fields of electromagnetic interference shielding, polymer science, materials science, nanotechnology, and other allied subject areas.

Hierarchically Porous Bio-Carbon Based Composites for High Electromagnetic Shielding Performance

Hierarchically Porous Bio-Carbon Based Composites for High Electromagnetic Shielding Performance PDF Author: Songtao Li
Publisher: Springer Nature
ISBN: 9811910693
Category : Technology & Engineering
Languages : en
Pages : 141

Book Description
This book highlights the preparation and characterization of efficient electromagnetic shielding composites containing bio-carbon derived from natural loofah with unique three-dimensional porous structures by means of entire structure design of composites according to shielding theory. The synergistic effect of multifunctional nanoparticles and bio-carbon on electromagnetic shielding mechanism, mechanical performance, and thermal stability of composites obtained has been holistically investigated. The discovery of this renewable, environmentally friendly, and inexpensive bio-carbon represents a new class of conductive materials with multi-interfaces and unravels further research and development of a wide variety of new electromagnetic shielding material systems with potential commercial applications ranging from electronic devices to energy management.​

Advanced Materials for Electromagnetic Shielding

Advanced Materials for Electromagnetic Shielding PDF Author: Maciej Jaroszewski
Publisher: Wiley
ISBN: 1119128617
Category : Technology & Engineering
Languages : en
Pages : 464

Book Description
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.

Electromagnetic Waves

Electromagnetic Waves PDF Author: Vitaliy Zhurbenko
Publisher: IntechOpen
ISBN: 9789533073040
Category : Science
Languages : en
Pages : 524

Book Description
This book is dedicated to various aspects of electromagnetic wave theory and its applications in science and technology. The covered topics include the fundamental physics of electromagnetic waves, theory of electromagnetic wave propagation and scattering, methods of computational analysis, material characterization, electromagnetic properties of plasma, analysis and applications of periodic structures and waveguide components, and finally, the biological effects and medical applications of electromagnetic fields.