EE2025 Engineering Electromagnetics (July-Dec 2019), Instructors: Dr Uday Khankhoje and Dr. Deepa Venkitesh
Lectures (D slot): Mo 11-11:50a, Tu 10-10:50a, We 9-9:50a, Th 12-1:00p. All in ESB 127 (for odd roll no students).

Tutorial/Exam schedule
Tutorial # 1, sol 2, sol 3, sol 4, sol 5, sol 6, sol 7, sol
Dates: Tut,exam 14/08, 19/08 03/09, 12/09 18/09, 01/10 26/09, 01/10 24/10, 29/10 24/10, 29/10 11/11

Resources
  1. Feynman's lectures on physics.
  2. MIT notes on visualizing electromagnetics.
  3. CD accompanying Ulaby's book on Electromagnetism, which has some Java based simulations, sample problems, and the book figures/tables.
Lecture Topics
  1. Introduction to elctromagnetic waves, slides. Lecture 0, 29 Jul
  2. Transmission Lines [8 Lectures]
    1. Concept of wave on a circuit, lumped v/s distributed elements. Sec 2.1,2.2 of RKS, Lecture 1, 30 Jul
    2. Voltage and current equations on a transmission line. Sec 2.3 of RKS, Lecture 2 31 Jul
    3. Review of phasors using RC circuit, characteristic impedance of a TL and a solved example. Sec 2.3, 2.4, Lecture 3 01 Aug
    4. Reflection coefficient and impedance as a function of length on a TL. Sec 2.4, Lecture 4 07 Aug
    5. Low loss and lossless TLs. Sec 2.5 of RKS, Lecture 5 06 Aug
    6. VSWR and impedance transformations in lossless TLs. Sec 2.6 of RKS, Lecture 6 07 Aug
    7. Power flow in a lossless TLs, applications of TLs. Sec 2.6,2.12 of RKS, Lecture 7 08 Aug
    8. Matching impedance on a TL: quarter wave transformer and single stub matching. Sec 2.13 of RKS, Lecture 8 13 Aug
  3. Maxwell's equations and plane waves
    1. Moving from voltages/currents to fields, review of vector calculus. Lecture 9 20 Aug
    2. Review of Maxwell's equations and boundary conditions. Lecture 10 21 Aug
    3. The wave equation and its analysis in free space (notes). Lecture 11 22 Aug
    4. Derivation of plane wave in free space, relation to TL equations, intrinsic impedance, phase velocity (simulation). Lecture 12 26 Aug
    5. Wave polarization: linear, circular and elliptical. Handout on LCD technology that uses polarization. Lecture 13 27 Aug
    6. Wave propagation in a conducting medium: concept of skin depth. Lecture 14 28 Aug
    7. Frequency dependence of refractive index, Sec 9.4 of Griffiths 4th ed. Lecture 15 04 Sep
  4. Maxwell's equations and interfaces
    1. Plane waves at dielectric interfaces, derivation of Snell's laws, Sec 9.3 of Griffiths. Lecture 16 05 Sep
    2. Fresnel reflection coefficients, Sec 9.4 of Griffiths. Lecture 17 09 Sep
    3. Current flow through good conductors and AC resistance, Sec 7.5 of Ulaby. Lecture 18 10 Sep
    4. Normal incidence on multi-layer dielectrics, anti reflection coatings, Sec 5.4 of RKS. Lecture 19 16 Sep
    5. Total internal reflection and the concept of evanescent fields, sec 5.5 of RKS, videos 1 2. Lectures 20,21 17,19 Sep
    6. Reflection at conducting media interfaces and the resulting standing wave patterns. Lecture 22 23 Sep
  5. Waveguides and resonators
    1. Introduction to waveguides, TE and TM modes in a parallel plate waveguide. Lectures 23,24 24,25 Sep
    2. Rectangular metallic waveguides -- TE and TM modes and discussion of TEM modes; Sec 9.5 of Griffiths, Visualization tools: 1 (see 8.5), 2. Lectures 25,26,27,28,29 09,10,14,15 Oct
    3. Electromagnetic resonators, fiber gratings and lasers, erbium doped fiber amplifiers (URL). Ch 8.11 of Ulaby, more info on basic laser physics (URL), lecture slides. Lecture 30 16 Oct
    4. Losses in waveguides: dielectric and conductor losses, Sec 6.8 of RKS. Lectures 31,32 21,23 Oct
  6. Special lecture and introduction to microwave remote sensing. Lecture 33 28 Oct
  7. Antennas and Arrays
    1. Introduction to the Hertz dipole antenna; near and far field radiation. Lectures 34,35 30,31 Oct
    2. Introduction to antenna arrays; radiation patterns and beam-forming. Lectures 36,37,38,39 4,5,6,7 Nov

Electromagnetics Poster Day (flyer)
Date: 19 Oct 2019, 2-6pm, Venue: TBD
Coordinators: TBD
Current groups and projects: See Read-only list.

Themes Proposal Poster
Electromagnetics in: (1)Natural phenomena, or (2) Research, or (3)Industry. [Pick one] (1) Group members, theme and title, due: 11:59pm 27 Sept on shared spreadsheet.
(2) Next, describe in one page: problem statement, proposed work. Use this Latex template + classfile or copy the template in a document here. Due: 11:59pm 06 Oct, via Turnitin.		 Prepare poster size A1 841 mm (width) x 594 mm (height) using Inkscape or Scribus using this Scribus template (sample poster, and helpful tips: 1, 2, 3). Due date: 9am 17 Oct, to coordinator (PDF, filename: GXX, where XX is group number).

Frequently given answers
  1. Each group of three students (can span across sections, but the number is strictly three) will present a single poster and optionally, a demo. From the given themes, you can pick any topic of your interest (must be approved by the instructor, though) 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.
  2. You must use Latex to write your proposal. See this for more info.
  3. There will be a viva during your poster presentation, conducted by various faculty members, TAs/PhD students.
  4. Ideas? Feynman Lectures on Physics, popular articles at the IEEE Antennas and Propagation magazine, or the Technology Briefs in Ulaby's book, TED talks.

Course flyer
  • Evaluation 4 exams: each 15%, tutorials: 5%, poster day: 10%, endsem: 25%
  • Text book: Electromagnetic Waves, R K Shevgaonkar RKS.
  • Introduction to Electrodynamics, D J Griffiths, 4th ed
  • Fundamentals of Applied Electromagnetics, Ulaby Michielssen, Ravaioli, 6th ed

Policies
  • As per institute rules, 85% attendance (minimum) is mandatory and will be enforced.
  • Academic misconduct: There will be zero tolerance towards any unethical means, such as plagiarism (COPYING in plain and simple terms) or proxy attendance. Read these links to familiarize yourself, there will be no excuse for ignorance: URL1, URL2. 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.


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