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
✔ Specialist skills | Intercultural skills | Communication skills | Critical thinking skills | ✔ Practical and/or problem-solving skills |
Students should submit homework summarizing the contents of the lecture after each class. Homework, etc. will be distributed and submitted at T2SCHOLA.
Course schedule | Required learning | |
---|---|---|
Class 1 | Derivation of the Helmholtz equation (Sec.1.1.1) | Derive using vector potential |
Class 2 | Solutions to Helmholtz equation (Sec.1.1.2) | Explain the meaning of the solution to wave equation |
Class 3 | Duality of electric and magnetic fields in Maxwell's equations (Sec.1.2) | Explain the structure of solution to wave equation |
Class 4 | Uniqueness theorem (Sec.2.1) | Explain the meaning of uniqueness theorem |
Class 5 | Application of the equivalence theorem (Sec.2.2) | Explain the meaning of field equivalence theorem |
Class 6 | Understanding the equivalence theorem (Sec.2.3) | Explain the application of field equivalence theorem to plane wave propagation |
Class 7 | Report (exam 1), Solutions and features for boundary value problems (Chap.3) | Explain how to solve boundary value problems |
Class 8 | Expressions of complementary solutions in rectangular coordinates (Sec.4.1) | Derive homogeneous solution in rectangular coordinate system |
Class 9 | Scattering problem due to a current in a one-end terminated parallel plate conductor (Sec.4.2.1) | Derive summation form for electromagnetic field in shorted parallel plates |
Class 10 | Proof of agreement between the summation and integral expressions (Sec.4.2.2-3) | Derive intergral form for electromagnetic field in shorted parallel plates and equivalence to summation form |
Class 11 | Expressions of complementary solutions in cylindrical coordinates (Sec.5.1) | Compare with the solution in rectangular coordinate system |
Class 12 | Scattering problem due to an electric current near a cylindrical conductor (Sec.5.2) | Derive radiation by line current |
Class 13 | Scattering problem due to an electric current near a wedge conductor (Sec.5.3.1) | Derive scattering electromagnetic field by a half plane |
Class 14 | Scattering problem of a plane wave incident to a semi-infinite plate conductor (Sec.5.3.2), Report (exam 2) | Explain diffraction phenomena of electromagnetic field by a half plane. Given problems, solve them and submit during the class |
To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.
J. Hirokawa and M. Ando, "Electromagnetic wave analysis" (In English)
Paperback, Design Egg Inc. (ISDN 978-4815022310)
https://www.amazon.co.jp/dp/4815022313?language=en_US
Amazon Kindle e-book (In English)
https://www.amazon.co.jp/dp/B08HL7GDRP?languaage=en_US
The paperback version and the e-book version have the same content.
J. Hirokawa and M. Ando, "Waveguide slot antenna analysis using eigenfunction expansion method" (in Japanese)
Paperback, Design Egg Inc. (ISDN 978-4815022303)
https://www.amazon.co.jp/dp/4815022305?language=ja_JP
Amazon Kindle e-book (in Japanese)
https://www.amazon.co.jp/dp/B08HL57X25?language=ja_JP
The paperback version and the e-book version have the same content.
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
C.A.Balanis, ”Advanced Engineering Electromagnetics," Wiley, ISBN 978-0-470-58948-9
Students' knowledge of analysis methods for wave equations, and their ability to apply them to problems will be assessed.
Reports (2 exams) about 70%, homework about 30%.
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.