EM Shielding – Theory and Development of New Materials

EM Shielding – Theory and
Development of New Materials
Chief Editor
Maciej Jaroszewski
Head of High Voltage Laboratory, Wrocław University of Technology
Wybrzeze Wyspianskiego 27, 50-370 Wrocław, Poland
Co-editor
Jan Ziaja
Wroclaw University of Technology, Institute of Electrical Engineering Fundamentals
50-370 Wroclaw, Poland
Editorial Consultant
Janina Pospieszna
Wrocław University of Technology, Faculty of Electrical Engineering, Institute I-7
Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
Research Signpost, T.C. 37/661 (2), Fort P.O., Trivandrum-695 023
Kerala, India
Published by Research Signpost
2012; Rights Reserved
Research Signpost
T.C. 37/661(2), Fort P.O.,
Trivandrum-695 023, Kerala, India
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Chief Editor
Maciej Jaroszewski
Co-editor
Jan Ziaja
Editorial Consultant
Janina Pospieszna
Managing Editor
S.G. Pandalai
Publication Manager
A. Gayathri
Research Signpost and the Editors assume no responsibility
for the opinions and statements advanced by contributors
ISBN: 978-81-308-0499-6
Preface
In recent years we can observe rapid increase in the number of sources
which generate the electromagnetic (EM) fields (like radio broadcasting,
television, radio communication, cellular telephony), continuously extending
range of applied frequencies and increasing power generated by those
sources. The contemporary requirements of civilization lead to the necessity
of applying more and more effective methods for shielding of
electromagnetic fields, which take into account the specificity of modern
devices and systems and the health of people living and working in the
vicinity of these fields. Therefore, the choice of suitable materials for the
shields and their appropriate arrangement have an essential meaning.
Nowadays, one of the most dynamically developing areas of application for
the new materials is the electromagnetic compatibility, more precisely
development new materials for electromagnetic fields shielding.
Maciej Jaroszewski
Contents
Chapter 1
The basics of the electromagnetic shielding
Janina Pospieszna
1
Chapter 2
Electromagnetic shielding of lightweight and flexible composites
Mariusz Ozimek, Maciej Jaroszewski, Jan Ziaja and Wiesław Wilczyński
41
Chapter 3
Conducting polymers for electromagnetic interference (EMI) shielding
Mahnaz M. Abdi, Anuar Kassim, Mehdi Jonoobi and Lim Hong Ngee
53
Chapter 4
Polymer based nanocomposites for electromagnetic interference (EMI) shielding
Veena Choudhary, S.K. Dhawan and Parveen Saini
67
Chapter 5
Effects of changes of permissible values of the magnetic field intensity
in the environment on the scope of protecting against the health
effects of the 50 Hz electromagnetic fields
Marek Szuba
101