Scheda programma d'esame
FOUNDATIONS OF ELECTROMAGNETICS
GIULIANO MANARA
Academic year2021/22
CourseTELECOMMUNICATIONS ENGINEERING
Code907II
Credits6
PeriodSemester 1 & 2
LanguageItalian

ModulesAreaTypeHoursTeacher(s)
FONDAMENTI DI ELETTROMAGNETISMOING-INF/02LEZIONI60
GIULIANO MANARA unimap
PAOLO NEPA unimap
Prerequisites

Vector calculus, principal reference systems, differential operators, kinematics, electrostatics, magnetostatics. Differential equations.

Co-requisites

Phasors, circuit theory (lumped electrical models).

Teaching methods

Delivery: mixed modality (due to Covid-19)

a) face to face (see the timetable of the second year of the Laurea Triennale - Bachelor of Science - in Telecommunications Engineering on the School of Engineering website;

b) link to the virtual class:

https://teams.microsoft.com/l/channel/19%3aeKyClQ0v_d5nKt9eOF2kdjlHlaum3mbfq-s1LOJG1_01%40thread.tacv2/Generale?groupId=06fb53c8-2fc0-44ed-8da5-9d354041da0a&tenantId=c7456b31-a220-47f5-be52-473828670aa1

Syllabus

Differential form of Maxwell equations in time domain. Electric current continuity equation. Integral form of Mawell equations: electromagnetic induction law by Faraday-Lentz, Ampére's circuital law genralized by introducing the displacement current, Gauss' laws for electric and magnetic charges. Duality theorem.

Constitutive equations of a medium: linearity, homogeneity, isotropy/anisotropy, dispersivity, causality. Conduction, polarization, and magnetization phenomena. Time domain analysis of dielectrics, magnetic materials, and conductors.

Plane waves: electromagnetic fields associated to a uniform plane wave in time domain. Spherical waves and locally plane waves. Sinusoidal waves and wave polarization. Poynting vector and time-domain Poynting's theorem.

Electromagnetic field analysis in frequency domain. Phasor electromagnetic fields, polarization plane. Maxwell's equations in frequency domain. Frequency-domain plane waves: phase constant and wavelenght. Constitutive relations in frequency domain: models for the analysis of time-dispersive media. Analysis of propagation in a plasma: characteristics of ionospheric plasma. Plane waves in lossy media: equivalent dielectric constant, attenuation constant. Frequency-domain Poynting's theorem.

Analysis of propagationin dispersive media: dipersion (Brillouin) diagram, phase and group velocity.

Continuity conditions for electromagnetic fields at the interface between two different media. Plane waves at the interface between media with different elctromagnetic characteristics: reflection and refraction phenomena. Field penetration depth in a good conductor, skin effect,. Surface impedance, boundary conditions at the exterior surface of a PEC (Perfect Electric Conductor) and a PMC (Perfect Magnetic Conductor).

Plane waves at the interface between two different media: oblique incidence case. Relfection and refraction laws. Fresnel reflection coefficients. Total reflection phenomenon: critical angle. Brewster's angle.Fundamentals of Geometrical Optics (GO).

Assessment methods

Oral exam.

Additional web pages

Page of the course on the e-learning platform of the School of Engineering at the following address:

https://elearn.ing.unipi.it/user/index.php?id=2565

Updated: 22/11/2021 13:07