prof. habil. dr. Liudmila Nickelson

Lectures on The Electromagnetic Field Theory 2010


   

                                                                               

An electrodynamics is a division of science, which describes the process of the excitation and propagation of electromagnetic waves in different media.  

             
ELECTRODYNAMICS studies the electromagnetic fields, which assert by means of the forces, which act on the particles of the substances, which possess electric charges. 
The course of technical electrodynamics includes the study of the theory of electromagnetic processes and electrodynamic of devices technique (electrodynamic applications: http://www.edapplications.com/). It covers the wide region of electromagnetic phenomena from the propagation of waves in the outer or near-Earth spaces to the processes in the electromagnetic devices.

.
Circular (elliptical) polarization of the EM wave


The electromagnetic field of a Hmn (TEmn) mode in a rectangular metallic waveguide.
The animation shows the wave moving to the right side.


Reflection and transmission of the plane electromagnetic wave.



     Over the last several years there has been a surge of interest in artificiall materials because of their potential to expand the range of electromagnetic properties in materials.

P h o t o n i c c r y s t a l s:



                                      The electromagnetic wave propagation on photonic cristals.

     Photonic crystals are periodic structures. The non-existence of propagating electromagnetic modes inside the structures at certain frequencies introduces unique optical phenomena such as low-loss-waveguides. The part of the spectrum for which wave propagation is not possible is called the optical band-gap. The underlying physical phenomenon is based on diffraction.

     ELECTROMAGNETIC METAMATERIALS (Metamaterial=Left-handed Material =Negative Index Material)

   
        

     "R" is the Right-handed Material and "L" is the Left-handed Material Electromagnetic metamaterials are artificially structured composites that can be engineered to have desired electromagnetic properties, while having other advantageous material properties. In addition to their potential in practical applications and devices, metamaterials can offer unique and previously unexplored material properties.

Professor, Habil. Dr. Liudmila Nickelson

E-mail: lucynickelson@gmail.com

Mob. Ph.: +3706 7103291

ELECTRODYNAMICS for IKSu-7(0), Fall Semester 2009.

At the end of the course students should be able to have an understanding of the physical principles of electromagnetism.

Thursday (T), Friday (F)




No

SYLLABUS

1.

Lecture 1

(1 week)

Introduction to Electrodynamics. Vector Algebra. Vector operations. The Gradient, the Divergence, the Curl. (see D.J. Griffiths, Introduction to Electrodynamics...)

L0-1,    L1-1,    L1-2

2 Sept., Thursday (T) 12:10-13:45, room 405

2.

Class Exercises 1

(1 week)

Vector Algebra

3 Sept.,  Friday (F) 8:30-10:05, room 405

3.

Lecture 2
(2 week)

Basic laws and concepts of electrostatics. Force between electric charges. Coulomb’s Law. Vectors of the Electric field. Electric Potential. Work and Energy in Electrostatics. Differential form of electrostatic laws: Gradient. The Divergence of an electrostatic field. Laplace’s and Poisson’s equations.

9 Sept. (T) 12:10-13:45 , room 405

4.




5.

Lecture 3

(2 week)




Class Exercises 2

Maxwell’s equations in a differential equation form and in a large-scale form. What is the sense of Faraday’s, Ampere’s and Gauss’s lows? The conservation low for electric charge and current densities.

10 Sept. (F) 8:30-10:05, room 405

  Electromagnetic field calculations.

 Sept () , room 405

6.

Lecture 4

( week)

Maxwell’s equations and constitutive relations for isotropic and anisotropic media. Classification of media and criteria of media by resistivity. Electric and magnetic susceptibility. Permittivity and permeability. Polarization and magnetization of media.

 Sept. ()  -

7.

Lecture 5

(week)


Boundary conditions. Interface between two lossless linear media. Interface between a dielectric and a perfect conductor. Poynting’s theorem. Pointing vector.

 Sept. () 14:30 - 16:05, room





8.

Lecture 6

( week)

Propagation of the plane monochromatic waves in perfect dielectric media.   The velocity of wave propagation. Maxwell's equations and plane  waves.  Polarization.

Presentation2009-X
 Oct.  () 12:10-13:45, room 405

9



Class Exercises 3

( week)

  Propagation of  electromagnetic waves. Polarization.
 Oct. () 14:30 - 16:05, room 405

10


Lecture 7 
( week)
Propagation of plane waves in lossy media. Penetration of electromagnetic field into a good conductor. Skin depth. Absorption.
 Oct. (), 14:30-16:05, room


11
Lecture 8
( week)
Dispersion. Polarization. Reflection. Refraction. Diffraction. Interference
Normal incidence of plane waves at a plane dielectric boundary. Reflection of the plane waves. Electromagnetic field reflection and interference at a dielectric plane boundary.
The electromagnetic spectrum. Frequency ranges THF, EHF, SHF.
 Oct. () 12:10 -12:55, room 405

12



13

Lecture 9

( week)



Class Exercises

Normal incidence at a plane conducting boundary. Oblique incidence at a plane conducting.

Electromagnetic field reflection and interference at a plane conducting boundary.

+++POLARIZATION1

 Oct. (),  12:10 - 13:45,  14:30-16:05, room 405

14



15

Lecture 10


Class Exercises

(  week)

 
Perpendicular and parallel polarization. Electromagnetic field reflection at a plane conducting boundary.

+++ POLARIZATION2

 Oct. (W) , 14:30-16:05, room 306

16



17

Midterm Exam

Lectures 1-10 ---> 22 Oct., 2010 (8:30-10:05)

HOME WORK DEADLINE 28 October, 2010 (12:10-13:45)

Your midterm exam will be on 22 Oct. (F.), 2010 (8:30-10:05), room 405

Closed notes and books. Assessment is by written examination.

The midterm exam consists of several questions. It will be between 5 and 12 short questions.Students who missed the class exercises have to solve additionally some electrodynamical problems.

Some literature to exam: 1.

2.



2HW:



Syllabus

Data

17

Lecture 12

Class Exercises 5

Transmission lines and waveguides. General transmission line equations.

Discussion about the Midterm Exam.

18

Lecture 13


Lecture 14


Waves guided by perfect metal parallel plates.

Power flow and attenuation in rectangular metal waveguides.
Helmholtz_(orWave)_equations. 

19



20

Lecture 15-16


Rectangular metal waveguide. (1 2)

Examples:
E11
E42
H01
H42

Magnetic field - blue color
Electric field - red color


21

Class Exercises 6

Rectangular metal waveguides.
Electromagnetic waves types and their excitation.

22

23

Lecture 17

Class Exercises 7


Circular waveguides. Main and higher order modes.

Circular waveguides.
Electromagnetic fields of Circular Waveguides.

Examples:
E01
E22
H11
H22

Magnetic field - blue color
Electric field - red color

24

Lectures 18-19

Rectangular cavity resonators. (1)

Examples:
H223
E123

Magnetic field - blue color
Electric field - red color

Circular cavity resonator. (1 2)

Examples:
H123
E213

Magnetic field - blue color
Electric field - red color

E111

Excitation and reception of electromagnetic waves in waveguides.

Dielectric and optic waveguides. Photonic cristals.

25

Class Exercises 8

Electromagnetic field of cavity resonators.


26




27



Lecture 20





Lecture 21

Condensed Matter. Anisotropic media. Bianisotropic media. Constitutive relations.

Chiral media. http://en.wikipedia.org/wiki/chirality_(Chemistry)


Metamaterial. {Meta=of higher order or level}

http:/wikipedia.org/wiki/Metamaterial

Gyrotropic media. Constitutive relations.
Propagation of plane waves in gyrotropic media (magnetized ferrite) and gyroelectric media (semiconductor plasma).

28

Lecture 22+

Electromagnetic properties of superconductors.
Perfect conductivity and perfect diamagnetism of superconductors. The London Equations.


29

+Lecture 23*

Basic Introduction to Bioelectromagnetics.

Energy absorbtion, the specific absorption rate (SAR).

http://niremf.ifac.cnr.it/tissprop/htmlclie/htmlclie.htm#atsftag



30

Final Exam

Lectures 12-23

6 Jan, 2009



Recommended Books:

  1. Jin Au Kong, Electromagnetic Wave Theory, EMW publishing, Cambridge, Massachusetts, USA, ISBN 0-9668143-9-8,2008,  p. 1031 (1016+15 introduction).
  2. D.K. Cheng, Field and Waves Electromagnetics, Addison-wesley publishing Compony, Reading, Massachusetts and et al., 1989, 703 p.
  3. D.J. Griffiths, Introduction to Electrodynamics, Prentice Hall, Upper Saddle River, New Jersey, 1999, 576p.
  4.  or It can be: Jin Au Kong, Electromagnetic Wave Theory, A Wiley-Interscience Publication, Jon Wiley& Sons, Inc.,New York/Chichester/Brisbane/ Toronto/ Singapore, 1990.
  5. S. Ramo, J.R. Whinnery, T.Van Duzer, Field and Waves in Communication Electronics, 1984, 817 p.
  6. Nannapaneni Narayana Rao, Prentice Hall, Englewood Cliffs, New Jersey 07632, 1994, 721 p.
  7. Z. Vainoris, Bangø elektronikos pagrindai. Vilnius, Technika, 2004, 500 p. (in Lithuanian)
  8. L. Nickelson, S. Aðmontas, V. Maliðauskas, V. Ðugurovas. (angl. summary: „Open cylindrical gyrotropic waveguides“. Monograph.) „Atvirieji cilindriniai girotropiniai bangolaidþiai“. Mokslinë monografija. Puslaidininkiø fizikos institutas, Vilniaus Gedimino technikos universitetas. Vilnius: Technika, 248 pages, 2007 (in Lithuanian).
  9. to Lecture 24*: Carl H. Durney, Douglas A. Christensen, Basic introduction to bioelectromagnetics. CRC Press, (Boca Raton, London, New York, Washington), 2000, 169 p.
  10. http://en.wikipedia.org/wiki/Wikipedia
  11. http://mathworld.wolfram.com
Semester GRADING =1 HOMEWORK*0.07+2 HOMEWORK*0.08+ Midterm exam*0.45+Final Exam*0.40

“A” is excellent (=10), “B” is good (~9 or 8), “C” is average(~7 or 6), “I” is incomplete (=5) and “F” is Fail (less than 5).

  • Two homeworks will count for 15% of your final grade.
  • The midterm exam will count for 45% of your final grade.
  •  


Last update: 09/02/2010

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