Subject description - BE2B17ELD
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BE2B17ELD | Electrodynamics | ||
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Roles: | Extent of teaching: | 2P+2C | |
Department: | 13117 | Language of teaching: | EN |
Guarantors: | Completion: | Z,ZK | |
Lecturers: | Credits: | 4 | |
Tutors: | Semester: | L |
Web page:
https://moodle.fel.cvut.cz/courses/BE2B17ELDAnotation:
This subject empowers its students with a unified approach to time-varying electromagnetic fields and waves.Study targets:
Enable students to understand basic electrodynamics.Content:
Electromegnetic waves in free space and various materials. Transmission and reflection at media interfaces. Polarization, skin-effect.Course outlines:
1. | Various potentials used in electromagnetics. Calibration, basic equations. | |
2. | Conditions at media interfaces (boundary conditions). Wave equation, including sources. Phase and group velocity, damping, polarization, wave impedance, dispersion. | |
3. | Electromagnetic fields in various media - interaction. Polarization, magnetization. | |
4. | Power transmission. Plane, cilindrical and spherical waves. Fermato principle. | |
5. | Waves at media interfaces, including lossy ones. Snell's law, Fresnell equations. | |
6. | Total reflection and evanescent waves. Brewster angle and polarization. | |
7. | Wave interaction with layered media. Quarter-wave transformer.. | |
8. | Lines supporting TEM waves. Telegraph equations. Characteristic and wave impedance. Power transmission, losses. | |
9. | Guided and evanescent waves. Modes, impedance, phase and group velocities, power trřansmission. | |
10. | Dielectric waveguides. Resonators. | |
11. | Integral formulation of dynamic fields. Green's function, retarded potentials. Elementary radiators. | |
12. | Near, intermediary and farfield description of fields emited by radiators. | |
13. | Waves in anisotropic media (including interfaces with such one). | |
14. | Introduction to numerical electromagnetics. |
Exercises outline:
1. | Scalar and vector potential, Hertz vectors. | |
2. | Conditions at media interfaces (boundary conditions). Wave equation, including sources. Phase and group velocity, damping, polarization, wave impedance, dispersion. | |
3. | Electromagnetic fields in various media - interaction. Polarization, magnetization. Total transmission. | |
4. | Power transmission. Plane, cilindrical and spherical waves. | |
5. | Simple calculations of waves reflecting at interfaces between dielectrics.. | |
6. | Detailed calculation of reflection and surface waves for arbitrary incident waves and media. | |
7. | Design of a quarter-wave transformer. Propagation through layered media. Lens coating. | |
8. | Design considerations for a coaxial line and connectors. | |
9. | Guided and evanescent waves.Calculation of arbitrary-crossection waveguide properties. | |
10. | Dielectric waveguides - propagation constants, evanescent fields, coating thickness. Resonators. Calculation of resonant frequencies for different modes. | |
11. | Field description - elementary radiators. | |
12. | Nearfield and farfield description of fields excited by elementary and quarter-wave dipoles.. | |
13. | Evaluation of propagation parameters in inisotropis media. | |
14. | Simple field solution using FDTD. |
Literature:
Stratton, J. A.: Electromagnetic Theory. John Wiley and sons. IEEE Press, Piscataway 2007Requirements:
Knowledge of calculus in 1-D, 2D and 3D. Vectors, Scalar and vector products.Keywords:
electrodynamics, electromagnetic waves, guided waves Subject is included into these academic programs:Program | Branch | Role | Recommended semester |
Page updated 29.3.2024 09:50:44, semester: Z/2024-5, Z,L/2023-4, Send comments about the content to the Administrators of the Academic Programs | Proposal and Realization: I. Halaška (K336), J. Novák (K336) |