Microwave Sensing, Signals and Systems

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Microwave Sensing, Signals and Systems

Department of Microelectronics

EE2P1 Electromagnetics

Topics: An introduction to electromagnetic fields and waves

The course deals with electromagnetic fields and electromagnetic wave propagation in free space and in materials, reflection and transmission effects at interfaces, induced phenomena (such as heat production, charge accumulation, and surface current generation), transmission lines, voltage and current distributions in transmission lines and radiation by elementary sources.

Topics:

• Review of vector algebra and calculus, electrostatics, magnetostatics, Lorentz's force law.
• •Maxwell's equations in vacuum, time and frequency representation, causality, conservation of charge, time-harmonic electromagnetic fields, polarization state
• Maxwell's equations in matter, induced currents and the constitutive relations, the electromagnetic boundary conditions
• Poynting's theorem for transient and time-harmonic waves
• Uniform plane waves, TE and TM electromagnetic waves, reflection and transmission at planar interfaces, the Fresnel reflection and transmission coefficients, Brewster angle and total reflection
• The electromagnetic field in a highly conducting material, eddy currents, skin effect, induced surface current and surface impedance
• Transmission lines and the basic transmission line equations (telegraph equations), transverse electromagnetic waves (TEM waves), characteristic impedance, the coaxial line and the parallel-plate waveguide, propagation along lossless and lossy transmission lines,
• Radiation and reception, elementary antenna theory, Friis equation

The course consists of lectures and two obligatory lab sessions.

Study Goals

After following this course you should be able to:

1. Explain the concepts underlying the Maxwell equations and their consequences for electrical engineering practice.
2. Calculate the electric and magnetic fields associated to electromagnetic waves in free space, dielectric/conducting material and transmission lines.
3. Calculate the power transported by electromagnetic waves in free space, dielectric/conducting material and transmission lines.
4. Calculate electric and magnetic fields radiated by elementary antennas in free space.
5. Get acquainted/experience with basic macroscopic electromagnetic phenomena and basic electromagnetic propagation properties of through a series of elementary experiments.

Teachers

[### dr. Oleg Krasnov

Radar; polarimetry; signal processing; remote sensing](https://radar.tudelft.nl/People/bio.php?id=22) [### prof.dr. Andrea Neto (THZ)

Applied electromagnetics, THz broadband imaging systems, antennas](https://terahertz.tudelft.nl/People/bio.php?id=12) [### dr. Maria Alonso-delPino (THZ)

mm- and sub-mm wave heterodyne and direct detection receivers, antennas and quasioptical systems](https://terahertz.tudelft.nl/People/bio.php?id=697)

Last modified: 2024-09-04

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