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Politecnico di Torino
Academic Year 2010/11
05AGPNX, 05AGPNG
Electromagnetic Fields and Waves
1st degree and Bachelor-level of the Bologna process in Electronic Engineering - Torino
Master of science-level of the Bologna process in Mathematical Engineering - Torino
Teacher Status SSD Les Ex Lab Tut Years teaching
SSD CFU Activities Area context
ING-INF/02 10 B - Caratterizzanti Ingegneria elettronica
Subject fundamentals
Transfer of information in any electronic or photonic system always takes place via propagation of electromagnetic waves. These phenomena are completely described by Maxwell's equations, whose methodological study constitutes a key aspect of all curricula in electrical, electronic, and information engineering. In addition to conventional applications in the field of radio frequency, microwave, millimeter waves and optic communications, the continued growth of electronic technology makes it necessary to consider properly the electromagnetic phenomena in the design of almost all electronic components and subsystems.
Expected learning outcomes
Ability to understand the phenomena associated with dynamic electromagnetic fields, and in particular with time-harmonic fields, for the most relevant applications of information engineering: electronic components and subsystems for RF, microwave and millimeter waves, and wireless propagation at-large.
Ability to apply analytical methods to analysis and the simple designs to the above-mentioned applications of the electromagnetic fields.
Prerequisites / Assumed knowledge
Basic math and calculus, and in particular ability to perform computations involving complex numbers and vector quantities; study of functions, basic knowledge and ability to solve problems on: multi-dimensional differential and integral calculus, differential and integral calculus of vector fields.
Basic knowledge and ability to perform computations involving functions of complex variable and Fourier transforms.
Basic knowledge and ability to solve problems on ordinary differential equations (of second order).
Fundamentals of physics on electrical, magnetic and electromagnetic quantities and on the energy properties of the electromagnetic field.
Circuit theory: ability to solve problems on the time-harmonic analysis of linear networks (sinusoidal regime).
Contents
' Transmission lines and distributed parameter components (30h): Line equations and their solution. Smith chart. Impedance matching. Scattering parameters and scattering matrix. Transmission line transients.
' Maxwell equations (4h)
' Electromagnetic wave propagation in homogeneous media: plane waves. (8h).
' Electromagnetic wave propagation in metallic waveguides (30h): propagation modes and their properties; rectangular waveguide, circular waveguide and coaxial cable; simple discontinuities and their use; losses; excitation terms.
' Electromagnetic wave radiation and antennas (22h): radiation in free-space, antenna characteristic parameters Free-space radiation, antenna characteristic parameters, radio-link budget. Introduction to antennas: dipoles, aperture antennas, arrays (basics).

Delivery modes
1. Measurements of scattering parameters for microstrip components with network analyser. (2h; descriptive)
2. Measurements of scattering parameters with the slotted line (2h).
3. Measurement of antenna radiation pattern (2h).
Texts, readings, handouts and other learning resources
D. Pozar, Microwave Engineering, Addison Wesley, 1990.
P.Savi, G.Vecchi, 'Linee di trasmissione, guide d'onda e antenne: esercizi svolti', CLUT, 2003.
Material on selected parts of the course available on the web portal.

Also available on the web portal: information on course, course handouts, assigned problems.
Assessment and grading criteria
Written test, organized in two parts: 1) A few theoretical questions (1/3); 2) Problem solving (2/3).

Programma definitivo per l'A.A.2010/11
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