Electromagnetic shielding : theory and applications / Salvatore Celozzi, [and three others].

Format:

Book

Author/Creator:

Celozzi, Salvatore, author.

Series:

Wiley Series in Microwave and Optical Engineering

Language:

English

Subjects (All):

Shielding (Electricity).

Magnetic shielding.

Physical Description:

1 online resource (563 pages)

Edition:

Second edition.

Place of Publication:

Hoboken, New Jersey : John Wiley & Sons, Inc., [2023]

Summary:

Comprehensive Resource for Understanding Electromagnetic Shielding Concepts and Recent Developments in the Field This book describes the fundamental, theoretical, and practical aspects to approach electromagnetic shielding with a problem-solving mind, either at a design stage or in the context of an issue-fixing analysis of an existing configuration. It examines the main shielding mechanisms and how to analyze any shielding configuration, taking into account all the involved aspects. A detailed discussion on the possible choices of parameters suitable to ascertain the performance of a given shielding structure is also presented by considering either a continuous wave EM field source or a transient one. To aid in reader comprehension, both a theoretical and a practical engineering point of view are presented with several examples and applications included at the end of main chapters. Sample topics discussed in the book include: * Concepts in transient shielding including performance parameters and canonical configurations * Time domain performance of shielding structures, thin shields, and overall performance of shielding enclosures (cavities) * How to install adequate barriers around the most sensitive components/systems to reduce or eliminate interference * Details on solving core fundamental issues for electronic and telecommunications systems via electromagnetic shielding For industrial researchers, telecommunications/electrical engineers, and academics studying the design of EM shielding structures, this book serves as an important resource for understanding both the logistics and practical applications of electromagnetic shielding. It also includes all recent developments in the field to help professionals stay ahead of the curve in their respective disciplines.

Contents:

Cover

Title Page

Copyright

Contents

About the Authors

Preface

Chapter 1 Electromagnetics Behind Shielding

1.1 Definitions

1.2 Notation, Symbology, and Acronyms

1.3 Macroscopic Electromagnetism and Maxwell's Equations

1.4 Constitutive Relations

1.5 Discontinuities and Singularities

1.6 Initial Conditions, Boundary Conditions, and Causality

1.7 Poynting's Theorem and Energy Considerations

1.8 Fundamental Theorems

1.8.1 Uniqueness Theorem

1.8.2 Reciprocity Theorem

1.8.3 Equivalence Principle

1.8.4 Duality

1.8.5 Symmetry

1.8.6 Image Principle

1.8.7 Babinet's Principle

1.9 Wave Equations, Helmholtz's Equations, Potentials, and Green's Functions

1.10 Basic Shielding Mechanisms

1.11 Source Inside or Outside the Shielding Structure and Reciprocity

References

Chapter 2 Shielding Materials

2.1 Standard Metallic and Ferromagnetic Materials

2.2 Ferrimagnetic Materials

2.3 Ferroelectric Materials

2.4 Thin Films and Conductive Coatings

2.5 Other Materials Suitable for EM Shielding Applications

2.5.1 Structural Materials

2.5.2 Conductive Polymers

2.5.3 Conductive Glasses and Transparent Materials

2.5.4 Conductive (and Ferromagnetic or Ferrimagnetic) Papers

2.6 Special Materials

2.6.1 Metamaterials and Chiral Materials

2.6.2 Composite Materials

2.6.3 Graphene

2.6.4 Other Nanomaterials

2.6.5 High‐Temperature Superconductors

Chapter 3 Figures of Merit for Shielding Configurations

3.1 (Local) Shielding Effectiveness

3.2 The Global Point of View

3.3 Other Proposals of Figures of Merit

3.4 Energy‐Based, Content‐Oriented Definition

3.5 Performance of Shielded Cables

Chapter 4 Shielding Effectiveness: Plane Waves

4.1 Electromagnetic Plane Waves: Definitions and Properties.

4.2 Uniform Plane Waves Incident on a Planar Shield

4.2.1 Transmission‐Line Approach

4.2.2 The Single Planar Shield

4.2.3 Multiple (or Laminated) Shields

4.3 Plane Waves Normally Incident on Cylindrical Shielding Surfaces

4.4 Plane Waves Against Spherical Shields

4.5 Extension of the TL Analogy to Near‐Field Sources

4.5.1 Examples

Chapter 5 Shielding Effectiveness: Near‐Field Sources

5.1 Spectral‐Domain Approach

5.1.1 Maxwell's Equations in the Spectral Domain

5.1.2 TM/TE Decomposition and Equivalent Transmission Lines

5.1.3 Spectral Dyadic Green's Functions

5.1.4 Field Evaluation in the Spatial Domain

5.2 LF Magnetic Shielding of Metal Plates: Parallel Loop

5.2.1 Spectral‐Domain Approach

5.2.2 Vector Magnetic‐Potential Approach

5.2.3 Approximate Formulations

5.3 LF Magnetic Shielding of Metal Plates: Perpendicular Loop

5.4 LF Magnetic Shielding of Metal Plates: Parallel Current Line

Chapter 6 Transient Shielding

6.1 Performance Parameters: Definitions and Properties

6.2 Transient Sources: Plane Waves and Dipoles

6.2.1 Transient Uniform Plane Waves

6.2.2 Transient Dipoles

6.3 Numerical Solutions via Inverse‐Fourier Transform

6.4 Analytical Solutions in Canonical Configurations

6.4.1 Transient Plane Waves on a Single‐Layer Screen

6.4.2 Transient Dipoles: The Cagniard-de Hoop Method

6.4.2.1 Thin Conductive Sheet

6.4.2.2 Graphene Sheet

6.4.2.3 Generalizations: Thick Shields, Multilayered Shields

Chapter 7 Numerical Methods for Shielding Analyses

7.1 Finite‐Element Method

7.2 Method of Moments

7.3 Finite‐Difference Time‐Domain Method

7.4 Finite Integration Technique

7.5 Transmission‐Line Matrix Method

7.6 Partial Element Equivalent Circuit Method

7.7 Test Case for Comparing Numerical Methods.

References

Chapter 8 Apertures in Planar Metal Screens

8.1 Historical Background

8.2 Statement of the Problem

8.3 Low‐Frequency Analysis: Transmission Through Small Apertures

8.4 The Small Circular Aperture

8.4.1 Bethe's Theory

8.4.2 Spectral‐Domain Formulation

8.5 Small Noncircular Apertures

8.6 Finite Number of Small Apertures

8.7 Apertures of Arbitrary Shape: Integral‐Equation Formulation

8.8 Rules of Thumb

Chapter 9 Enclosures

9.1 Modal Expansion of Electromagnetic Fields Inside a Metallic Enclosure

9.2 Oscillations Inside an Ideal Source‐Free Enclosure

9.3 The Enclosure Dyadic Green Function

9.4 Excitation of a Metallic Enclosure

9.5 Damped Oscillations Inside Enclosures with Lossy Walls and Quality Factor

9.6 Apertures in Perfectly Conducting Enclosures

9.6.1 Small‐Aperture Approximation

9.6.2 Rigorous Analysis: Integral‐Equation Formulation

9.6.3 Aperture‐Cavity Resonances

9.7 Small Loading Effects

9.8 The Rectangular Enclosure

9.8.1 Symmetry Considerations

9.9 Shielding Effectiveness of a Rectangular Enclosure with an Aperture

9.9.1 Numerical Models

9.9.2 Analytical Models

9.10 Case Study: Rectangular Enclosure with a Circular Aperture

9.10.1 External Sources: Plane‐Wave Excitation

9.10.2 Internal Sources: Electric and Magnetic Dipole Excitations

9.11 Overall Performance in the Frequency Domain

9.12 Overall Performance in the Time Domain

Chapter 10 Cable Shielding

10.1 Transfer Impedance in Tubular Shielded Cables and Aperture Effects

10.2 Relationship Between Transfer Impedance and Shielding Effectiveness

10.3 Actual Cables and Harnesses

Chapter 11 Components and Installation Guidelines

11.1 Gaskets

11.2 Shielded Windows

11.3 Electromagnetic Absorbers

11.4 Shielded Connectors.

11.5 Air‐Ventilation Systems

11.6 Fuses, Switches, and Other Similar Components

Chapter 12 Frequency Selective Surfaces

12.1 Analysis of Periodic Structures

12.1.1 Floquet Theorem and Spatial Harmonics

12.1.2 Plane‐Wave Incidence on a Planar 1D Periodic Structure

12.1.3 Plane‐Wave Incidence on a Planar 2D Periodic Structure

12.1.4 Integral Equation Formulation for Plane‐Wave Incidence and Periodic Green's Function

12.1.5 Dipole Excitation of Planar 2D Periodic Structure

12.2 High‐ and Low‐Pass FSSs

12.3 Band‐Pass and Band‐Stop FSSs

12.3.1 Center‐Connected Elements or N‐Pole Elements

12.3.2 Loop‐Type Elements

12.3.3 Solid‐Interior‐Type Elements

12.3.4 Combinations and Fractal Elements

12.4 Recent Trends in FSSs

12.4.1 Multilayer and Cascaded FSSs

12.4.2 3‐D FSSs

12.4.3 2.5‐D FSSs

12.4.4 Reconfigurable and Active FSSs

12.5 Absorbing FSSs

12.5.1 Circuit Analog Absorbers

12.5.2 Absorptive Frequency Selective Reflection/Transmission Structures

12.5.2.1 AFSR Structures

12.5.2.2 AFST Structures (Frequency‐Selective Rasorbers)

12.6 Modeling and Design of FSSs

Chapter 13 Shielding Design Guidelines

13.1 Establishment of the Shielding Requirements

13.2 Assessment of the Number and Types of Functional Discontinuities

13.3 Assessment of Dimensional Constraints and Non‐Electromagnetic Characteristics of Materials

13.4 Estimation of Shielding Performance

Chapter 14 Uncommon Ways of Shielding

14.1 Active Shielding

14.2 Partial Shields

14.3 Chiral Shielding

14.4 Metamaterial Shielding

Appendix A Electrostatic Shielding

A.1 Basic Laws of Electrostatics

A.2 Electrostatic Tools: Electrostatic Potential and Green's Functions

A.3 Electrostatic Shields

A.3.1 Conductive Electrostatic Shields.

A.3.2 Dielectric Electrostatic Shields

A.3.3 Aperture Effects in Conductive Shields

Appendix B Magnetic Shielding

B.1 Magnetic Shielding Mechanism

B.2 Calculation Methods

B.3 Boundary‐Value Problems

B.3.1 Spherical Magnetic Conducting Shield

B.3.2 Cylindrical Magnetic Conducting Shield in a Transverse Magnetic Field

B.3.3 Cylindrical Magnetic Conducting Shield in a Parallel Magnetic Field

B.4 Ferromagnetic Shields with Hysteresis

Appendix C Statistical Electromagnetics for Shielding Enclosures

C.1 Statistical Analyses

C.2 Examples

Appendix D Standards and Measurement Methods for Shielding Applications

D.1 MIL‐STD 285 and IEEE STD‐299

D.2 NSA 65‐6 and NSA 94‐106

D.3 ASTM E1851

D.4 ASTM D4935

D.5 MIL‐STD 461G

D.6 Code of Federal Regulations, Title 47, Part 15

D.7 ANSI/SCTE 48‐3

D.8 MIL‐STD 1377

D.9 IEC Standards

D.10 ITU‐T Recommendations

D.11 Automotive Standards

Index

EULA.

Notes:

Includes bibliographical references and index.

Description based on print version record.

Other Format:

Print version: Celozzi, Salvatore Electromagnetic Shielding

ISBN:

9781119736318

1119736315

9781119736295

1119736293

OCLC:

1350434963