20810364 - Electromagnetic fields

To learn the foundations of electromagnetic field theory finalized to the analysis and design of electromagnetic systems to be used by biomedical engineers.

Curriculum

teacher profile | teaching materials

Programme

PART I

Topics in algebra and calculus

Linear spaces, scalar and vector products, algebraic identities.
Scalar and vector fields. First- and second-order differential operators. Differential identities.
Irrotational and solenoidal fields. Scalar and vector potentials.
Dirac function.
Dyadic product.

Fundamental equations of electromagnetic fields

Maxwell equations in time and frequency domains.
Constitutive relations in time and frequency domains.
Boundary conditions in time and frequency domains.
Complex representations. Complex vectors and polarization properties of electromagnetic fields.
Fourier transform.
Poynting theorem in time and frequency domains.
Uniqueness theorems in time and frequency domains.

Plane waves

Helmholtz equation.
Wave functions.
Plane waves in free space.
Propagation and polarization features of plane waves.
Secondary constants of media.
Polychromatic fields.
Group velocity.


PART II

Electromagnetic field excited by impressed sources

Electrodynamic potentials
Deterministic problem
Green's functions
Electromagnetic field excited by impressed currents in free space: formulation of the problem
Green's function for free space
Electromagnetic field excited by impressed currents in free space: general solution and its approximations
Retarded potentials
Short dipole

Plane-wave reflection and transmission

Symmetry with respect to a plane, odd and even electromagnetic fields
Normal incidence
Oblique incidence

Transmission lines

Transmission-line (or telegraphers') equations
Solutions of the transmission-line equations
Impedance, admittance and reflection coefficients
Standing-wave ratio
Transmission-line formalism for the study of reflection and transmission of plane waves
Smith diagram and impedance matching with stubs

Waveguides

Structures with cylindrical symmetry
Transmission lines associated with TM, TE and TEM waves
Hollow metallic waveguides
Eigenvalue problems
Modal propagation in hollow metallic waveguides
Rectangular waveguides
Circular waveguides and coaxial cables

Core Documentation

• G. Gerosa, P. Lampariello - Lezioni di Campi elettromagnetici - Ed. Ingegneria 2000, Roma, 2006, seconda edizione.
• Supplementary teaching handouts (by the lecturer)
• Electromagnetic fields exercises done (by the lecturer)

Textbook in English:
• F. Frezza - A Primer on Electromagnetic Fields - Ed Springer International Publishing Switzerland, 2015, (1° ed).

Reference Bibliography

Textbooks • G. Gerosa, P. Lampariello - Lezioni di Campi elettromagnetici - Ed. Ingegneria 2000, Roma, 2006, seconda edizione. • F. Frezza - A Primer on Electromagnetic Fields - Ed Springer International Publishing Switzerland, 2015, (1° ed). Reference texts C. A. Balanis - Advanced engineering electromagnetics - John Wiley & Sons, New York, 1989. G. Barzilai - Fondamenti di Elettromagnetismo - Siderea, Roma, 1983. G. Conciauro - Introduzione alle onde elettromagnetiche - McGraw-Hill Libri Italia, Milano, 1993. G. C. Corazza - Campi elettromagnetici - Zanichelli, Bologna, 1994. G. Franceschetti - Campi elettromagnetici - Editore Boringhieri, Torino, 1983. D. S. Jones - Acoustic and Electromagnetic Waves - Clarendon Press, Oxford, 1986. S. Ramo, J. R. Whinnery, T. Van Duzer - Campi e onde nell'elettronica per le telecomunicazioni - Franco Angeli Editore, Milano, 1982. C. G. Someda - Onde elettromagnetiche - UTET, Torino, 1986. G. Toraldo di Francia, P. Buscaglioni - Onde elettromagnetiche - Zanichelli, Bologna, 1988. J. Van Bladel - Electromagnetic Fields - Hemisphere Publ. Corp., Washington, 1985.

Attendance

Non-mandatory attendance

Type of evaluation

-Two oral questions (max 15 points each) on the first and second parts of the program, respectively. The exam is passed if the overall grade is greater than or equal to 18/30. -There is one exemption test (written exam with one or more open questions) of the first part of the program (max 15 points). Exemption from the first part is obtained with a score equal to or greater than 9. The final exam, in the case of exemption from the first part, will consist of one oral question on the second part of the course (max 15 points). The exam is passed if the overall grade is greater than or equal to 18/30.

teacher profile | teaching materials

Programme

PART I

Topics in algebra and calculus

Linear spaces, scalar and vector products, algebraic identities.
Scalar and vector fields. First- and second-order differential operators. Differential identities.
Irrotational and solenoidal fields. Scalar and vector potentials.
Dirac function.
Dyadic product.

Fundamental equations of electromagnetic fields

Maxwell equations in time and frequency domains.
Constitutive relations in time and frequency domains.
Boundary conditions in time and frequency domains.
Complex representations. Complex vectors and polarization properties of electromagnetic fields.
Fourier transform.
Poynting theorem in time and frequency domains.
Uniqueness theorems in time and frequency domains.

Plane waves

Helmholtz equation.
Wave functions.
Plane waves in free space.
Propagation and polarization features of plane waves.
Secondary constants of media.
Polychromatic fields.
Group velocity.


PART II

Electromagnetic field excited by impressed sources

Electrodynamic potentials
Deterministic problem
Green's functions
Electromagnetic field excited by impressed currents in free space: formulation of the problem
Green's function for free space
Electromagnetic field excited by impressed currents in free space: general solution and its approximations
Retarded potentials
Short dipole

Plane-wave reflection and transmission

Symmetry with respect to a plane, odd and even electromagnetic fields
Normal incidence
Oblique incidence

Transmission lines

Transmission-line (or telegraphers') equations
Solutions of the transmission-line equations
Impedance, admittance and reflection coefficients
Standing-wave ratio
Transmission-line formalism for the study of reflection and transmission of plane waves
Smith diagram and impedance matching with stubs

Waveguides

Structures with cylindrical symmetry
Transmission lines associated with TM, TE and TEM waves
Hollow metallic waveguides
Eigenvalue problems
Modal propagation in hollow metallic waveguides
Rectangular waveguides
Circular waveguides and coaxial cables

Core Documentation

• G. Gerosa, P. Lampariello - Lezioni di Campi elettromagnetici - Ed. Ingegneria 2000, Roma, 2006, seconda edizione.
• Supplementary teaching handouts (by the lecturer)
• Electromagnetic fields exercises done (by the lecturer)

Textbook in English:
• F. Frezza - A Primer on Electromagnetic Fields - Ed Springer International Publishing Switzerland, 2015, (1° ed).

Reference Bibliography

Textbooks • G. Gerosa, P. Lampariello - Lezioni di Campi elettromagnetici - Ed. Ingegneria 2000, Roma, 2006, seconda edizione. • F. Frezza - A Primer on Electromagnetic Fields - Ed Springer International Publishing Switzerland, 2015, (1° ed). Reference texts C. A. Balanis - Advanced engineering electromagnetics - John Wiley & Sons, New York, 1989. G. Barzilai - Fondamenti di Elettromagnetismo - Siderea, Roma, 1983. G. Conciauro - Introduzione alle onde elettromagnetiche - McGraw-Hill Libri Italia, Milano, 1993. G. C. Corazza - Campi elettromagnetici - Zanichelli, Bologna, 1994. G. Franceschetti - Campi elettromagnetici - Editore Boringhieri, Torino, 1983. D. S. Jones - Acoustic and Electromagnetic Waves - Clarendon Press, Oxford, 1986. S. Ramo, J. R. Whinnery, T. Van Duzer - Campi e onde nell'elettronica per le telecomunicazioni - Franco Angeli Editore, Milano, 1982. C. G. Someda - Onde elettromagnetiche - UTET, Torino, 1986. G. Toraldo di Francia, P. Buscaglioni - Onde elettromagnetiche - Zanichelli, Bologna, 1988. J. Van Bladel - Electromagnetic Fields - Hemisphere Publ. Corp., Washington, 1985.

Attendance

Non-mandatory attendance

Type of evaluation

-Two oral questions (max 15 points each) on the first and second parts of the program, respectively. The exam is passed if the overall grade is greater than or equal to 18/30. -There is one exemption test (written exam with one or more open questions) of the first part of the program (max 15 points). Exemption from the first part is obtained with a score equal to or greater than 9. The final exam, in the case of exemption from the first part, will consist of one oral question on the second part of the course (max 15 points). The exam is passed if the overall grade is greater than or equal to 18/30.