EEL 207 Engineering Electromagnetics 2014-15 Semester I
Lectures: Tu We Fr, 10-10.50a (Slot E), Block IIA 201 (Bharti). Tutorials: Tu-Fr, 1-1.50p, II LT2.


News
  1. Major on 26.11.2014, 1-3pm in LHC-1 (two sided A4 cheat sheet allowed). All lecture topics (till Antennas).
  2. Minor-3 on 09.10.2014, 7-8pm in 4LT3, closed notes (one side A4 cheat sheet allowed). Lecture topics 7.
  3. Minor-2 on 23.09.2014 in class, closed notes (one side A4 cheat sheet allowed). Lecture topics 6 to 7.
  4. Minor-1 on 28.08.2014, 7-8pm in IV LT 3, open notes (your own only). Lecture topics 1 to 5.
  5. Quiz-1 on 22.08.2014 in class, open notes (your own only).
  6. Are there jobs in EM? Yes! Click here to see data collected by the class this semester.
  7. The course has a Facebook group. If you haven't joined the group yet, visit the page and join in!
  8. Tutorials will start from the week of 28th July. Make sure you are organized into 4 groups, one each on Tu (G5), We(G1), Th(G2), Fr(G3). (G4) students should redistribute themselves into these four days. Attendance will be recorded in the tutorial.
Resources
  1. Feynman's lectures on physics.
  2. MIT notes on visualizing electromagnetics.
  3. CD accompanying Ulaby's book, which has some Java based simulations, sample problems, and the book figures/tables.
  4. Recommended web-material: Prof. R K Shevgaonkar's NPTEL video lectures, and Prof. Cynthia Furse's course on electromagnetism.
Tutorial1 Tutorial2 Tutorial3 Tutorial4 Tutorial5 Tutorial6 Tutorial7 Tutorial8 Tutorial9
Solution1 Solution2 Solution3 Solution4 Solution5 Solution6 Solution7 Solution8 Solution9
Quiz-1 Minor-1 Minor-2 Minor-3
A:34%,S:22%, M/m:92%/0,T:12 A:26%,S:15%, M/m:72%/0,T:25 A:59%,S:24%, M/m:100%/5%,T:21 A:35%,S:23%, M/m:90%/0,T:20
[A: Average, S: Standard deviation, M: Maxmimum, m: Minimum, T: Total marks.]

Lecture Topics
  1. Why study electromagnetics? Read this paper by Taflove. Class slides. (Lecture 1 22.07.14)
  2. Travelling waves, phasor review. Ch.1 of Ulaby, YouTube videoes by Prof. Furse:1,2,3. (Lecture 2 23.07.14)
  3. Transmission Lines (TL):
    • Introduction and derivation of TL equations. Ch.2.1-2.4 of Ulaby, slides, YouTube: intro,TL?,effects,RLGC model: 1,2. Additional notes. (Lecture 3 25.07.14)
    • TL equations: propagation constant, reflection coefficients, matched/open/shorted circuit conditions, VSWR, slotted line for measuring unknown impedance. Ch 2.6 of Ulaby. Run the TL simulator, module 2.4 here. YouTube videos: Prop. const,lossless TL,reflections,ref. coeff.,standing waves,max/min,max/min(more). (Lecture 4 30.07.14)
    • TL : wave impedance, special cases, power flow. Ch 2.7-2.9 of Ulaby. Run the wave impedance simulator, module 2.5 here. YouTube: impedance 1,2,3,4,example. (Lecture 5 01.08.14)
    • TL: Smith charts and their use in TL analysis, Ch 2.10 of Ulaby, slides. Run the Smith chart simulator, module 2.6 here. High quality Smith Chart from the Wikipedia article. YouTube: 1,2,3,4,5,6,7,8,9,10. Impedance matching (Ch 2.11 of Ulaby is covered in the tutorials this week). (Lecture 6 06.08.14)
  4. Review of vector calculus (additional notes):
    • Vector algebra, coordinate systems, gradient of a scalar field, divergence of a vector field. Ch 3.1-3.5 of Ulaby. Youtube: 1,2,3,4,5,6,7,8,9. (Lecture 7 08.08.14)
    • Divergence theorem, curl of a vector field, Stokes theorem, a few important results: curl of a gradient, divergence of a curl, connectivity of regions for area integrals, physical interpretation of gradient. Ch 3.5-3.7 of Ulaby, notes on the gradient: 1,2, notes on various identities: wiki, integrals, Youtube videos here. (Lecture 8 12.08.14)
  5. Statics:
    • Electrostatics: Gauss's law stated in Ch 4.1-4.4 of Ulaby and derived in Ch 2.1, 2.2 of Griffiths; electric potential: Ch 4.5 of Ulaby and Ch 2.3 of Griffiths; fields in dielectric materials: stated in Ch 4.7 of Ulaby, derived in Ch 4.1.1, 4.1.2, 4.1.4, 4.2.1, 4.2.2, 4.3.1 of Griffiths. Youtube: 1,2,3,4,5,6,7,8,9,10,11,12 (Lecture 9 13.08.14)
    • Polarizability of a material: Ch 4.7 of Ulaby, Ch 4.1.1,4.1.2,4.1.4,4.2.1,4.2.2,4.3.1 of Griffiths; classification of media (linear/non-linear, isotropic/anisotropic, homogeneous/heterogeneous): Ch 4.4.1 of Griffiths; boundary conditions on field components: Ch 4.8 of Ulaby, Ch 2.3.5,4.3.3 of Griffiths; electric fields in conductors: Ch 4.6 of Ulaby, Ch 2.5 of Griffiths. Also, this.(Lecture 10 19.08.14)
    • Magnetostatics: Lorentz force, Ampere's law, and magnetic vector potential: Ch 5.1,5.2,5.3,5.4 of Ulaby, Ch 5.1,5.2,5.3,5.4.1 of Griffiths; magnetic fields in materials and types of magnetic materials: Ch 5.5 of Ulaby, Ch 6 of Griffiths. (Lecture 11 20.08.14)
  6. Electrodynamics
    • Currents in conductors, Drude model, Electromotive force, Motional EMF. See Ch 7.1 of Griffiths, Ch 6.1 of Ulaby. Additional notes on Drude, and on induced EMF. (Lecture 12 26.08.14)
    • Faraday's law: Ch 6.1,6.2,6.4,6.6 of Ulaby, Ch 7.2.1,7.2.2 of Griffiths, Maxwell's equations: Ch 6.7 of Ulaby, Ch 7.3.1,7.3.2,7.3.3 of Griffiths (note that Ulaby only states, whereas Griffiths derives!). (Lecture 13 03.09.14)
    • Maxwell's equations in matter: Ch 7.3.5 Of Griffiths, Boundary conditions for electric and magnetic fields: Ch 6.8 of Ulaby, Ch 7.3.6 Of Griffiths. (Lecture 14 05.09.14)
    • Continuity equation of charge: Ch 8.1.1 of Griffiths, Poynting's theorem: Ch 8.1.2 of Griffiths. (Lecture 15 09.09.14)
  7. Electromagnetic (EM) waves
    • Maxwell's equations in vacuum: Ch 9.2.1 of Griffiths, monochromatic plane waves: Ch 9.2.2 of Griffiths. (Lecture 16 10.09.14, Lecture 17 12.09.14)
    • Connection between transmission lines and plane waves, concept of electromagnetic/intrinsic impedance of a medium: Ch 7.2 of Ulaby, plane wave propagation in a linear medium: Ch 9.3.1 of Griffiths & Ch 7.2 of Ulaby, concept of linear polarization and examples in radar systems (additional URL1, URL2). (Lecture 18 16.09.14)
    • Introduction to microwave remote sensing (above URLs), EM spectrum: URL, wave polarization (linear and circular): Ch 7.3 of Ulaby. (Lecture 19 17.09.14)
    • Elliptical wave polarization: Ch of Ulaby, EM waves in a conducting medium: Ch 9.4.1 of Griffiths. (Lecture 20 24.09.14)
    • EM waves at the interface between a conducting and non-conducting medium: Ch 9.4.2 of Griffiths. (Lecture 21 25.09.14, Lecture 22 30.09.14)
    • EM waves at the interface between two non-conducting mediums (oblique incidence): Ch 9.3.3 of Griffiths. Additional info on: ray/geometrical/physical optics: (URL1, URL2), anti-reflective coatings: (URL1, URL2). (Lecture 22 30.09.14, Lecture 23 01.10.14)
  8. Guided electromagnetic waves
    • Solving Maxwell's equations in a metallic waveguide: general considerations, Ch 9.5.1 of Griffiths, Ch 8.6,8.7 of Ulaby. (Lecture 24 14.10.14)
    • Uniqueness theorem in electromagnetics (URL1, URL2), TE modes in a metallic waveguide, group and phase velocities: Ch 9.5.2 of Griffiths, 8.9,8.10 of Ulaby. (Lecture 25 15.10.14)
    • Geometrical interpretation of waveguide modes and velocities, TM modes in a metallic waveguide: Ch 9.5.2 oF Griffiths, Ch 8.8,8.10 of Ulaby, java simulator for waveguide modes.(Lecture 26 17.10.14)
    • Guided modes in an optical fibre: guest lectures by Prof. R K Shevgaonkar. (Lecture 27 28.10.14, Lecture 28 29.10.14)
  9. Special topics
    • Frequency dependence of refractive index (or why does the rainbow seem the way it does). See this for more on the damped harmonic oscillator, this for an exposition on rainbows, and refer to Ch 9.4.3 of Griffiths for a quantitative treatment. (Lecture 29 31.10.14)
    • Electromagnetic resonators, fiber gratings and lasers, erbium doped fiber amplifiers (URL). Ch 8.11 of Ulaby, more info on basic laser physics (URL1, URL2), lecture slides. (Lecture 30 11.11.14)
    • Introduction to computational methods: finite-difference time-domain (FDTD). See the 1D method from Ch. 3 here (upto 3.3), the open-source software meep (trivial to install on Ubuntu), and a general overview of the 3D method here. (Lecture 31 12.11.14)
    • Introduction to Antennas: the Hertz dipole. Derivation of near and far-fields and Poynting vector (Ch 9.1 of Ulaby), and demo of Witricity's wireless power transfer kit. Also see the Hertz dipole simulator to visualize fields. (Lecture 32 14.11.14)
    • Characterizing antennas: radiation patterns, beamwidth, directivity. Introduction to antenna arrays (also this). Ch 9.2, 9.9 of Ulaby. (Lecture 33 15.11.14)
    • Introduction to photonic crystals and related devices (Slides). See the tutorial slides (and other material) by the ab initio group at MIT here, and also refer to the (free) textbook here. (Lecture 34 18.11.14)

Electromagnetics Poster Day (flyer)
Date: 02 Nov 2014, 2-5pm, Exhibition hall area, IIT Delhi
Coordinator: Shubham Bharadwaj

Themes Proposal Poster
(1)Natural phenomena explained by electromagnetics, (2)Electromagnetics in industry, (3)Electromagnetics in research. Group members and title, due: 05.10.14 on shared spreadsheet. Next, describe in one page: problem statement, proposed work. Use this Latex template + classfile. Due: 11:59pm 16.10.2014, by e-mail to instructor (PDF). Prepare poster using Inkscape or Scribus using this Scribus template (sample poster, and helpful tips: 1, 2, 3). Due date: 13:00, 30.10.14, to coordinator (TIFF, filename: PXX).

Frequently given answers
  1. List of groups and topcs here.
  2. Each group of three students will present a single poster and optionally, a demo. From the given themes, you can pick any topic of your interest and create a sufficiently well developed poster and presentation about the topic. The level of presentation should be much more than the average level of a Wikipedia article on the topic.
  3. You must use Latex to write your proposal. See this for more info.
  4. There will be a viva during your poster presentation, conducted by various faculty members.
  5. Ideas? Feynman Lectures on Physics, the Technology Briefs in Ulaby's book, TED talks.

Course flyer
  • Recommended texts: Fundamentals of Applied Electromagnetics Ulaby, Michielssen, Ravaioli, Pearson 6th ed.; Introduction to Electrodynamics Griffiths, Pearson 4th ed.; Electromagnetic Waves Shevgaonkar, McGraw-Hill; Elements of Electromagnetics Sadiku, Oxford 5th ed;
  • Topics (broad outline) : Travelling waves, transmission lines, review of vector calculus, Maxwell's equations, plane wave propagation, wave reflection and transmission including waveguides, radiation and antennas, additional topics: photonic crystals, computational electromagnetics, optical fibres, remote sensing (time permitting).

Grading (Policy document)
  • Exams: Minors 15% each, Major 35%
  • In class: Announced quiz 10%, interaction/attendance 5%
  • Poster + Viva 20%.
  • Bonus: Challenging problems (upto 3%) can help you cross a grade boundary.
Policies
  • As per institute rules, 75% attendance (minimum) is mandatory and will be enforced.
  • All emails to the instructor or TAs must have EEL207 in the subject line.
  • Collaboration policy: For the purpose of assignments and projects, students are free to: Look up any reference texts or Internet resources, use any computational software (Mathematica/MATLAB), and discuss with faculty or fellow students. However, the assignments turned in must be entirely original. Strictly off limits are: Looking at the final work of a fellow student, or the solution manuals of any reference text, or past assignment/examination material of any courses.
  • Academic misconduct: There will be zero tolerance towards any unethical means, such as plagiarism (COPYING in plain and simple terms). Read these links to familiarize yourself, there will be no excuse for ignorance: URL1, URL2, URL3. Penalties incude: receiving a zero in a particular assignment/examination, receiving a fail grade for the entire course, having a note placed in your permanent academic record, suspension, or all of the above. All electronic submissions will be via a plagiarism detection software, TurnItIn. Details will be discussed in class.

home