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      ElectroMagnetics 22.3MB1

      Course Organisation
      Weeks 1 : Introduction & Revisions. Assignment handed out (Dr Yvan Petillot and Dr Robin Dunbar) 
      Weeks 2-4 : Vector Algebra, Vector Calculus and Operators (Dr Laurence Nicholas)  
      Weeks 5: Maxwell's equations: from Integral to differential form. (Dr Yvan Petillot)
      Weeks 6-7 1/2: Wave equations in free space and media. Assignment is handed in(Dr Andrew Harvey)
      Weeks 7 1/2 - 8: Sinusoidal waves (Dr Yvan Petillot)
      Weeks 9: Reflection and refraction of plane waves (Dr Andrew Harvey)
      Weeks 10: Revisions Dr Andrew Harvey & Dr Yvan Petillot
      Lecturer: Dr. Yvan Petillot, Dr Andrew Harvey and Dr Robin Dumbar
      Contact Details: Room G.03 and Room 2.05
      email: ceeyrp@cee.hw.ac.uk or arharvey@cee.hw.ac.uk
      Aim of Course:
      To introduce electromagnetics waves and their properties. This a theoretical course where the principles of modern communicationns lies. It is critical to understand antennas, communications systems and microwave technologies. The course will take you from the laws of physics valid in electro-statics and magneto-statics to the maxwell equations generalising the previous laws for accelarating charges. We will also move from a integral form (global) of these laws to their differential (local) form. Altough this course is quite mathematical, you will have a glimpse at theoretical physics and this can be very rewarding. In any case, do not panic, generations of students have survived it and many actually did enjoy it.


      Structure of Course

      Introduction to Electromagnetics. From a static to a moving world
      Introductory lectures
      Waves? What are they? 
      Electostatics and Magnetostatics revisions. Faraday's Law, Gauss Theorem, Ampere's Law.  
      Maxwell equations: the static case  
      Tutorial on Electrostatics and MagnetoStatics 
      Introduction to Matlab and the assignment  
      Vector Algebra and Operators
      Maxwell equations: from integral form to differential form
      Integral forms
      Stokes and D'Ostogravsky (divergence) theorems
      Differential form
      Wave Equations in Free Space and mediums
      The Free space case
      What if there is a medium?
      Sinusoidal waves
      Basic complex algebra
      Phasors and sine waves representation
      Sinusoidal wave equations
      Reflection and Refraction of plane waves


      Recommended Text

      Most Electomagnetics Text Books, including
       
      • Electromagnetics

      • John D. Kraus (Fifth Edition). Very comprehensive, quite mathematical.
         
      • The Feynman lectures on physics volume II (Electromagnetics one and two)

      • Richard P. Feynman. A bit difficult but the most enligthening lecture on physics you will find around. A masterpiece!
         

      On line Ressources


       

      General Useful links
       

      • EM personalities (a bit of history)


      LectureNotes

      You will find here some electronics copies of the lecture notes. These copies will not always be available and in any case only after the lectures.

      A few paper copies will also be available in 1.56.

      Condensed version (6 slides per page) of the revision lecture
      Full version (2 slides per page) of the revision lecture
      Condensed version the first tutorial notes
      Full version (2 slides per page) first tutorial notes
      Condensed Version (6 slides per page) of the overheads for Week 5
      Correction of the last 3 questions of the second tutorial. The arrows on the vectors will only appear at high resolution of if you print the document
      Lecture Notes on Wave Propagation for Weeks 6 &7 (Zipped) by Andrew Harvey. This will be updated as the course progresses.
      Lecture Notes on Phasor forms, Propagation in medium and skin depth for Weeks 7&8 by Yvan Petillot (6 pages per page).


      Tutorials

      These tutorials are year 2001 tutorials. The tutorials are available in pdf format. When you select one of these documents Adobe Acrobat Reader will start and open the document. You will then be able to read it, search it for key words or phrases or print it. When you are finished using the document, go to Acrobat's [File] menu and choose Exit.

      Solutions will be made available during the tutorials.

      Tutorial 1 - Revisions
      Matlab Tutorial
      Tutorial 2 - Revisions and Vector calculus
      Tutorial 3 - Wave equations / Skin Depth
      Tutorial 4 - Reflection and refraction / Power
      Tutorial 5 - Relection and refraction
      Tutorial 6 - Last Year Exam


      Matlab is a very powerful scientific programming package with outstanding visualisation capabilities. As we progress through the tutorial and the course, you should become more comfortable with Matlab and use it to understand and visualise the physical processes. You will find a small libraries of functions that you can download and use freely. You are encouraged to do so as early as possible. Some functions of the “library” are useful to understand vector calculus and differential forms of the Maxwell equations as wee as the Nabla operator that you will study during the next 3 weeks. Matlab can be used in Lab 2.52 on PC Caledonia where 50 licenses are available. Log in onto your PC Caledonia account and click on the Matlab icone in your desktop. If for some reason, the icone is not there, use the Start Program menu to start Matlab. Then in Matlab, use the cd command to move to the directory where the program lies and type the name of the file to start the program. You will find here a series of short Matlab Programs that you are encouraged to download and try. They are various visual illustrations of the notions (vector calculus, fields, wave) that you are currently studying. They should help you in apprehending the physical concepts and visualising them as well as getting used to matlab.
      Example of divergence
      Example of curl
      Example of gradient
      Example of calculus and display of fields and potentials:static case
      Example of calculus and display of fields and potentials:dynamic case
      Electric Field from a distribution of point and line charges. Various display techniques
      Example of elctromagnetic field
      Example of 2D space and time varying scalar field
      Example of 2D space and time varying vector field
      Code to visualise varying scalar
      Code to visualise varying vector
      Vector Algebra demos
      Laplacian and Poisson equation function
      Laplacian and Poisson equation demo

      Matlab Help Guides

      Matlab online help and tutorials can be found here.
      A local copy of Matlab Getting Started manual in pdf format can be found here.


      Assignment

      Details of the assignment for this course are now available. The assignment is available on-line in pdf format. When you select one of these documents Adobe Acrobat Reader will start and open the document. You will then be able to read it, search it for key words or phrases or print it. When you are finished using the document, go to Acrobat's [File] menu and choose Exit.

      Matlab Assignment for module 22.3MB1
       
        The assignment correction is now available online below. You will then be able to read it, search it for key words or phrases or print it. When you are finished using the document, go to Acrobat's [File] menu and choose Exit.

      Matlab Assignment Correction for module 22.3MB1
       
        The program is also avaliable for download here.

      Matlab Assignment example program for module 22.3MB1
       
       


      If you have any queries please send email to me at ceeyrp@cee.hw.ac.uk

      NOTE: Clipart from http://www.signgray.demon.co.uk/clipart/