Electromagnetic waves

lelec2350  2021-2022  Louvain-la-Neuve

Electromagnetic waves
5.00 crédits
30.0 h + 30.0 h
Q2
Langue
d'enseignement
Anglais
Préalables
Basic courses on physics and on engineering electromagnetics 
Thèmes abordés
Wireless systems have become ubiquitous and new technologies exploiting higher frequencies, with wider bandwidths, are reinforcing this trend. This calls for a deeper understanding of high-frequency electromagnetic fields, as they occur in microwave circuits and propagation problems.
Regarding microwave circuits, an advanced study of guided waves appears necessary, taking into account the quite diverse types of transmission lines and the study of their dispersion analysis. This may include dispersion-engineered materials, such as metamaterials.
Regarding propagation, spatial selectivity is becoming more intensively used, since phased arrays now fully entered the civilian domain, in both communication and radar front-ends. This calls for spatial-spectrum representation of fields, in Cartesian, cylindrical and spherical systems of coordinates. Those will also be applied to propagation problems, including for instance surface waves. A link  with optics will be made, through the analysis of partially coherent fields, which are more thoroughly studied in optics than in microwaves.
An introduction the different types of numerical methods for field analysis, including commercially available software, will be provided as well.
The exposed concepts will also be put in practice through different labs, devoted mainly to guided waves and radar experiments.
Acquis
d'apprentissage

A la fin de cette unité d’enseignement, l’étudiant est capable de :

. a. Contribution of the activity to the learning outcomes of the program 
 1.1, 1.2, 3.2, 3.3, 6.1
b. Learning outcomes 
After this course, the students in electrical engineering should be able to: 
  • Choose the most appropriate field representation for a given guided-wave or propagation problem.
  • Explain different electromagnetic-field phenomena based on those representations.
  • Be able to use some numerical tools to control wave propagation.
  • Have a practical experience with wave phenomena, through laboratory equipment.
 
Contenu
  1. Plane waves
  2. Guided waves and advanced transmission lines
  3.  (with Comsol lab and study of dispersion), e.g. surface waves
  4. Cylindrical and spherical waves
  5. Green’s functions
  6. Spatial spectrum
  7. Waves in periodic media
  8. Numerical methods
  9. Reciprocity and equivalence principles Physical and geometrical optics
  10. Partially coherent fields
  11. Radar 1, regarding hardware
  12. Radar 2, with lab in anechoic chamber 
Méthodes d'enseignement
The teaching method is based on lectures, accompanied by exercices (some of which include programming of basic field representations), by use of commercial EM software and by experiments in anechoic chamber.
Modes d'évaluation
des acquis des étudiants
Written exam and lab reports
Support de cours
  • Slides, lab notes and extra reading material
Faculté ou entité
en charge


Programmes / formations proposant cette unité d'enseignement (UE)

Intitulé du programme
Sigle
Crédits
Prérequis
Acquis
d'apprentissage
Master [120] : ingénieur civil physicien

Master [120] : ingénieur civil électricien