Electromagnetics

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

• 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