This course focuses on direct solution to Maxwell's equation, diffraction and scattering of electromagnetic wave and antennas. Topics include the derivation and the interpretation of solution to wave equation, field equivalent theorem, scattering in cylindrical coordinate system and its interpretation, antenna parameters and operating principle of basic antennas. By combining lectures and reports, the course enables students to understand the analysis methods of electromagnetic wave and their interpretations and the operating mechanisms of various antennas.
The course follows electricity and magnetism, electromagnetic fields and waves and waveguide engineering and gives students deep interpretations on radiation and scattering of electromagnetic waves and antenna operations and is followed by advanced courses such as guided waveguide circuit theory, electrical modelling and simulations and RF measurement engineering.
By the end of this course, students will be able to:
1) Derive wave equation from Maxwell's equation and understand the meaning of its solution.
2) Understand the meaning of field equivalent theorem.
3) Solve scattering problems in cylindrical coordinate system.
4) Understand the meaning of diffraction and scattering of electromagnetic wave.
5) Understand the meaning of the antenna parameters such as radiation pattern, directivity, gain, efficiency and polarization.
6) Understand the radiation principle of various antennas such as wire antenna, arran antenna, aperture antenna, microstrip antenna.
4) Understand the meaning of diffraction and scattering of electromagnetic wave.
5) Understand the meaning of the antenna parameters such as radiation pattern, directivity, gain, efficiency and polarization.
6) Understand the radiation principle of various antennas such as wire antenna, array antenna, aperture antenna, microstrip antenna.
wave equation, field equivalence theorem, cylindrical coordinate system, diffraction and scattering, antenna
✔ Specialist skills | Intercultural skills | Communication skills | Critical thinking skills | ✔ Practical and/or problem-solving skills |
Students should submit a report summarizing the contents of the lecture after each class..
Course schedule | Required learning | |
---|---|---|
Class 1 | Radiation from source - Derivation using vector potential | Derive using vector potential |
Class 2 | Solution to wave equation - Derivation using Green's theorem | Explain the meaning of the solution to wave equation |
Class 3 | Structure of solution to wave equation | Explain the structure of solution to wave equation |
Class 4 | Integral expression of electromagnetic wave - Direct integral of Maxwell's equation | Explain the meaning of the integral expression of electromagnetic field |
Class 5 | Field equivalent theorem - Proof by field uniqueness theorem | Explain the meaning of field equivalence theorem |
Class 6 | Understanding of field equivalence theorem in plane wave propagation - Field by equivalent currents assumed on virtual boundary | Explain the application of field equivalence theorem to plane wave propagation |
Class 7 | Application of field equivalent theorem in radiation from a dipole antenna | Explain the application of field equivalent theorem in radiation from a dipole antenna |
Class 8 | Test level of understanding with exercise problems and summary of the first part of the course - Solve exercise problems covering the contents of classes 1–7. | Test level of understanding and self-evaluate achievement for classes 1–7. |
Class 9 | Homogeneous solution in rectangular coordinate system | Deeriv Derive homogeneous solution in rectangular coordinate system |
Class 10 | Summation form for electromagnetic field in shorted parallel plates | Derive summation form for electromagnetic field in shorted parallel plates |
Class 11 | Intergral form for electromagnetic field in shorted parallel plates - Equivalence to summation form | Derive intergral form for electromagnetic field in shorted parallel plates and equivalence to summation form |
Class 12 | Homogeneous solution in cylindrical coordinate system - Behavior of Bessel functions | Compare with the solution in rectangular coordinate system |
Class 13 | Analysis of radiaiton by line current in cylindrical coordinate system - Expression using homogeneous solutions for field discontinuity on the boundary | Derive radiation by line current |
Class 14 | Scattering of electromagnetic field by a half plane - Derivation of scattering electromagnetic field by a half plane | Derive scattering electromagnetic field by a half plane |
Class 15 | Diffraction phenomena of electromagnetic field - Diffraction phenomena of electromagnetic field by a half plane | Explain diffraction phenomena of electromagnetic field by a half plane |
Text is delivered at OCW-i.
J.A.Stratton, "Electromagnetic Theory," IEEE Press, ISBN: 978-0-470-13153-4
R.F.Harrington, "Time-Harmonic Electromagnetic Fields," McGraw Hill, ISBN 978-0-471-20806-8
Students' knowledge of analysis methods for wave equations, and their ability to apply them to problems will be assessed.
Midterm and final exams 80%, reports 20%.
Students must have successfully completed Electricity and Magnetism I and II (EEE.E201 and EEE.E202), electromagnetic fields and waves (EEE.E211), waveguide engineering and the radio law (EEE.S301) or have equivalent knowledge.