336 Pages 100 B/W Illustrations
    by CRC Press

    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.

    Plane Wave Shielding
    The "Magic" of Shielding Waves Revealed
    The Impedance of a Wave
    Impedance of Air, Real Metals, and Real Insulators
    Reflection and Transmission Coefficients
    Plane Wave Power
    Single-Layer Conducting Shield
    Thin Shields and Reflection Loss
    Thick Shields and Absorption Loss
    Skin Depth
    Skin Depth for Good Insulators
    Skin Depth for Several Good Metals
    Complex Permittivity and RF Through Human Fat
    Microwaves through Human Fat
    Table of Dielectric Constants and Loss Tangents
    Loss in dB Per Skin Depth
    Reflection, Absorption, and Multiple-Reflection Losses
    Effect of Dielectric Constant on Shielding
    Near Field or Far Field?
    Wave Impedance

    Electric Field Shielding
    The "Magic" of Electric Field Shielding Revealed
    Size is Important!
    Shielding Reciprocity?
    Using Capacitance to Model Shielding
    Capacitor Shielding
    Three-Terminal Capacitor
    Shielding Cans
    Finite-Conductivity Spherical Bodies
    Step Response of Spherical Bodies
    Finite-Conductivity Cylindrical Body
    Electric Blankets and Infants
    Typical Electric Field Strengths
    Current Through and Voltage Across a Field-Immersed Person
    Insulating Spherical Shields
    Insulating Cylindrical Shields
    EQS and Perfect Conductors

    Magnetic Field Shielding
    The "Magic" of Magnetic Field Shielding Revealed
    Magnetic Field from Simple Current Distributions
    Magnetic Fields for Other Current Distributions
    Magnetic Field Boundary Conditions
    Flux Shunting Explained via Boundary Conditions
    Self Shielding Nature of Coax
    Method of Images for Currents
    Wire Partners Can Reduce Fields
    Thick Poor Conductors
    Thin Good Conductors
    Spherical and Cylindrical Conducting and Magnetic Shields
    Pure Magnetic Spherical Shell
    Pure Magnetic Cylindrical Shell
    Finite-Length Cylindrical Shell
    Shielding the Source and Shielding Reciprocity
    Shielding a Cosmetologist with a Body Suit
    Power Line Shielding via Burying
    Wave Impedance Concept
    Flat Shielding of Current-Carrying Loops
    Grounding Shields
    Cheap Shielding
    Nonideal Shapes
    Reducing the Magnetic Coupling Between Inductors
    Typical Magnetic Flux Densities
    MQS and Perfect Conductors
    Decoupled Time-Varying Electric and Magnetic Fields

    Additional Shielding Concepts
    When Is a Shield Flat?
    Performance of a Shielded Room
    Laminated Shields
    Shields with an Air Gap
    Gold Coating on Glass
    Laminates for Magnetic Fields
    Rust Never Sleeps-Corrosion
    Surface Impedance
    Voltage and Current along a Chassis
    Impedance of Coated Conductors
    Nontraditional Shielding Materials
    Shielding Effectiveness vs. Surface Resistance
    Near-Field Electric Shielding Effectiveness
    An Equipotential Surface
    Electric vs. Magnetic Field Measurements
    Single-Conductor Transmission Line
    TEM, TE, and TM Waves
    Cutoff Frequency of a Waveguide
    Attenuation Beyond Cutoff
    Seepage through a Seam
    One Large Hole vs. Several Smaller Holes
    Honeycomb Ventilation Openings
    Coupling through an Aperture
    Radio in a Metal Box
    Lightning Protection Inside an Automobile


    Kenneth L. Kaiser

    "If you do not already own the Electromagnetic Compatibility book, this is a must have for those who design shielding. It provides the basic equations for a wide variety of shielding designs and field conditions."

    – John J. Shea, in IEEE Electrical Insulation Magazine, Jan/ Feb 2008, Vol. 24, No. 1