Electrodynamics
Course 191210410(1), academic year 2011/2012, block 1A. The course is part of the Bachelor and Master curricula for Electrical Engineering of the Faculty of Electrical Engineering, Mathematics and Computer Science at the University of Twente. Besides students that follow the Electrical Engineering tracks, also students from all other areas, where phenomena related to electrodynamics play a role, are most welcome. The course language will be English. Lecturers: Manfred Hammer (lectures, first part), Hugo Hoekstra (lectures, second part), Lantian Chang (exercises classes).
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While electrodynamic phenomena are abundant everywhere, they are certainly omnipresent in all areas of electrical engineering. The Maxwell equations form the universal basis of any theoretical description. Building upon the course "Theory of Electromagnetic Fields" (191211290), which concentrates mainly on problems in electro- and magnetostatics, we will continue the introduction of concepts of electrodynamics, now with explicit emphasis on configurations and phenomena where the time-dependence is essential. The general overview of the theory, including a series of instructive and relatively simple problems, will be followed by a look at somewhat more involved (technical) applications.
Contents: Brush up on vector calculus and electro- and magnetostatics; Maxwell equations, time- and frequency-domain, differential and integral form, Poynting theorem; scalar- and vector potentials; wave equation, electromagnetic waves in media, plane wave reflection and transmission at interfaces; guided waves, dielectric waveguides; dipole radiation, antennas; transmission lines; introduction special relativity.
The course follows (loosely, part of) the Introduction to Electrodynamics by D.J. Griffiths, 3rd international edition, Prentice Hall, 2003, ISBN-10: 0-13-919960-8. Several of the problems considered in the exercise classes will be taken from this textbook. A chapter from Electromagnetics for Engineers by F.T. Ulaby, Prentice Hall, 2004, ISBN-10: 0131497243 (text available via BB) will be adapted for the discussion of transmission lines. Our weekly procedure consists of lectures (10 x), exercise classes (7 x), and intermediate tests (2 x) from week 36, September 07, until week 43, October 26, on Mondays during hours 6+7 in room HB-2F, and on Wednesdays (weekly) and Thursdays (bi-weekly), hours 3+4, in room SP-7. The course closes with a written examination in week 45, November 09.
Depending on the progress of the course, the
distribution of topics over lectures
may be subject
to change.
The prospective schedule is as follows:
| Week | Date | Time | Room | |
| 36 | We, 07.09. | 10:45 - 12:30 | SP-7 | Lecture A (sheets) |
| Th, 08.09. | 10:45 - 12:30 | SP-7 | Lecture B (sheets) | |
| 37 | Mo, 12.09. | 13:45 - 15:30 | HB-2F | Exercises I (solutions) |
| We, 14.09. | 10:45 - 12:30 | SP-7 | Lecture C (sheets) | |
| 38 | Mo, 19.09. | 13:45 - 15:30 | HB-2F | Exercises II (solutions) |
| We, 21.09. | 10:45 - 12:30 | SP-7 | Test (1) | |
| Th, 22.09. | 10:45 - 12:30 | SP-7 | Lecture C, contd. | |
| 39 | Mo, 26.09. | 13:45 - 15:30 | HB-2F | Exercises III (solutions) |
| We, 28.09. | 10:45 - 12:30 | SP-7 | Lecture D (sheets) | |
| 40 | Mo, 03.10. | 13:45 - 15:30 | HB-2F | Exercises IV (solutions) |
| We, 05.10. | 10:45 - 12:30 | SP-7 | Lecture E (sheets) | |
| Th, 06.10. | 10:45 - 12:30 | SP-7 | Lecture F (sheets) | |
| 41 | Mo, 10.10. | 13:45 - 15:30 | HB-2F | Exercises V (solutions) |
| We, 12.10. | 10:45 - 12:30 | SP-7 | Lecture G | |
| 42 | Mo, 17.10. | 13:45 - 15:30 | HB-2F | Exercises VI (solutions 1_2, 3) |
| We, 19.10. | 10:45 - 12:30 | SP-7 | Test (2) | |
| Th, 20.10. | 10:45 - 12:30 | SP-7 | Lecture H | |
| 43 | Mo, 24.10. | 13:45 - 15:30 | HB-2F | Exercises VII (solutions) |
| We, 26.10. | 10:45 - 12:30 | SP-7 | Lecture I | |
| 45 | We, 09.11. | 13:45 - 17:15 | SP-2 | Exam |
The lectures will be accompanied by weekly exercise classes where students work on given sets of problems. These intend to deepen the topics of the lecture, to fill in omitted details, and to apply and extend the theory. One or two supervisors will be present. Students are expected to come prepared to these classes, i.e. are expected to be to a certain degree familiar with the material discussed during the lecture.
Two intermediate tests are scheduled after about 1/3 and 2/3 of the course, to provide feedback to both the candidates and the lecturers. Positive results in these tests will slightly lessen the burden of passing the final exam: Assuming that rj, mj, and gj=1+9rj/mj are the actual points achieved, the maximum number of achievable points, and the (real valued) grade received for the intermediate tests (j= 1,2) and in the exam (j=e), then the final grade g will be determined by the expression
g = floor(max{ge, 0.9ge+0.1g1, 0.9ge+0.1g2, 0.8ge+0.1g1+0.1g2}+0.49).Exception: max{...}=5.5 will lead to the grade 6.
15.02.2012
