Electrodynamics
Elektrodynamik

EITN80, 7.5 credits, A (Second Cycle)

Valid for: 2024/25
Faculty: Faculty of Engineering LTH
Decided by: PLED E
Date of Decision: 2024-04-02
Effective: 2024-05-08

General Information

Depth of study relative to the degree requirements: Second cycle, in-depth level of the course cannot be classified
Elective for: E4-fh, F4, F4-tf, F4-f, F4-axn, F4-fel, MFOT1
Language of instruction: The course will be given in English on demand

Aim

The course provides a deep and broad understanding of electromagnetic theory. It complements the basic course in key areas related to electromagnetic waves and the interaction between moving charged particles and electromagnetic fields. It also gives the relativistic description of electrodynamics, with the aim of providing a basic understanding of accelerator physics. The course discusses techniques for control of electromagnetic fields in experiment and technology.

Learning outcomes

Knowledge and understanding
For a passing grade the student must

• master the Maxwell equations and the mathematical methods used in the solution of electromagnetic problems
• be able to treat the motion of charged particle in electromagnetic fields
• determine the electromagnetic fields caused by accelerating charged particles
• understand the principles of particle accelerators
• determine the electromagnetic fields that can propagate in various types of waveguides
• understand the concepts waveguide, phase and group velocity and cut-off frequency of waveguides
• to determine the electromagnetic fields that can exist in the resonant cavities
• understand different methods for measurements of electromagnetic fields and the physical limitations of these methods

Competences and skills
For a passing grade the student must

• master analytical and numerical methods for solving the Maxwell equations.
• to determine which methods are possible to measure the electric and magnetic fields in given frequency ranges and geometries
• be able to transform the electromagnetic field between inertial systems
• be able to analytically and numerically treat electromagnetic waves in waveguides and cavities

Judgement and approach
For a passing grade the student must

• to assess the mathematical and numerical methods suitable for the analysis of various types of electromagnetic problems
• be able to design electromagnetic systems for given frequencies and geometries
• be able to make reasonable estimates of electromagnetic fields and waves with the help of physical rules of thumb

Contents

Areas covered include: Maxwell equations, multipole expansion, potentials, gauge invariance, relativistic transformation of electromagnetic fields, motion of charged particles in electromagnetic fields, radiation from accelerating charges, Waveguides, cavities.

Examination details

Grading scale: TH - (U, 3, 4, 5) - (Fail, Three, Four, Five)
Assessment:

Assignments and take home exam with oral presentation

The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability.

Modules
Code: 0118. Name: Assignments.
Credits: 4.0. Grading scale: UG - (U, G). Assessment: Approved assignments The module includes: Assignments
Code: 0218. Name: Take Home Exam .
Credits: 3.5. Grading scale: TH - (U, 3, 4, 5). Assessment: Approved Take home exam and oral presentation

Admission

Admission requirements:

• EITF80 Electromagnetic Fields or EITF85 Electromagnetic Field Theory or ETEF01 Electromagnetic Field Theory

Reading list

• David J. Griffiths: Introduction to Electrodynamics. Cambridge University Press, 2017, ISBN: 978-1-108-42041-9.
• Anders Karlsson och Gerhard Kristensson: Microwave Theory. 2016.

Contact

Course coordinator: Johan Lundgren, johan.lundgren@eit.lth.se
Course homepage: https://www.eit.lth.se/course/eitn80