This course deals with different types of transmission lines, and gives the bases to understand and analyze the guided propagation of electromagnetic waves. The equivalent transmission lines formalism is also discussed, and the most common types of waveguides are presented.

After completion of the course, the student will be able to analyze simple transmission lines, also in the time domain, to carry out simple calculations on the scattering matrix of a network, to analyze single mode waveguides, also with elementary discontinuities.

All courses of Mathematics, Physics, Fundamentals of Electric Circuits, and relevant prerequisites.

General concepts: behavior of electric circuits at high frequency: components and most significant systems. Transmission lines. Distributed parameters circuits: transmission lines equations in time and frequency domain. Single frequency and wide band matching. Examples of transmission lines: coaxial line, twin wires, microstrip. Introduction to Scattering matrix. Transmission line analysis in time domain: dispersive lines on matched load. Group velocity and phase velocity. Distortion analysis of narrow band signals and pulses, non dispersive lines closed on non dispersive mismatched loads.
Maxwell equations in time domain and frequency domain. Solutions of Maxwell equations in homogeneous medium: plane waves.
General concepts on waveguides: wave equations, TM, TE, TEM modes and their properties, modal lines and impedances, propagation constants, modal eigenfunctions. Examples: the rectangular metallic waveguide. Waveguide discontinuities.

Lectures and exercises on the content of the lectures; laboratory exercises (measurements on slotted lines and network analyzer). Computational elextromagnetics exercises at LAIB.

Lecture notes (texts and slides copies) prepared by the instructor.
Moreover, as auxiliary texts ¿ R. E. Collin: ¿Foundations for microwave engineering¿, McGraw-Hill, 1992. ¿ D.M. Pozar, ¿Microwave engineering¿, Addison Wesley, 1990. ¿ C.R.Paul, "Electromagnetics for engineers", Wiley, 2004.

Written ( with textbook but without personal notes) and oral examination.