# GUIDING ELECTROMAGNETIC CIRCUITS & SYSTEMS

_
iten
Code
72391
2020/2021
CREDITS
5 credits during the 2nd year of 8732 Electronic Engineering (LM-29) GENOVA
SCIENTIFIC DISCIPLINARY SECTOR
ING-INF/02
LANGUAGE
Italian (English on demand)
TEACHING LOCATION
GENOVA (Electronic Engineering)
semester
1° Semester
modules
This unit is a module of:
Teaching materials

## AIMS AND CONTENT

AIMS AND LEARNING OUTCOMES

This course aims at providing the basic competences about guided electromagnetic propagation. The course is focused on systems and devices operating at radio and microwave frequencies.

Teaching methods

Lectures and laboratory experiences.

SYLLABUS/CONTENT

### Guided electromagnetic waves

• Maxwell’s equations for cylindrical structures.
• Field behavior in the axial direction and in the transverse plane.
• Dirichlet and Neumann boundary conditions.
• Classification of modes and their computation.
• Effects of losses: perturbation method, conductor losses, dielectric losses.
• Wave properties: phase velocity and wavelength, group velocity, cutoff phenomena.

### Guiding systems

• Parallel plate waveguide, rectangular and circular waveguide, coaxial line.
• Planar transmission lines: strip and microstrip lines, coplanar waveguide, slot line, substrate integrated waveguide.

### Microwave network theory

• Modes as transmission lines: general form of telegrapher’s equations
• Field representation in guiding systems and power transfer.
• Review of transmission line theory and Smith chart.

### Passive microwave components

• General description of components, their representations and scattering parameters.
• One-port components: loads, short and open circuits.
• Two-port components: discontinuities and junctions, transitions and adapters, attenuators, phase shifters, isolators, gyrators.
• Three-port components: T junctions, power dividers, circulators.
• Four-port components: directional couplers, hybrid junctions.
• Microwave resonators: quality factor and resonant cavities.

### Laboratory experiences

1. Field computation and visualization with MATLAB.
2. Rectangular waveguides and their classification.
3. Measurements with slotted lines and waveguides.
4. Simulation of microwave components.
5. Experimental characterization of microwave devices.

Lecture notes and slides of laboratory sessions.

Basic textbooks:

• R. E. Collin, Foundations for Microwave Engineering, New York: IEEE Press/John Wiley & Sons, 2001.
• D. M. Pozar, Microwave Engineering. New York: John Wiley & Sons, 2011
• R. Sorrentino, G. Bianchi, Microwave and RF Engineering. Hoboken, NJ: John Wiley & Sons, 2010.

• R. Garg, I. Bahl, and M. Bozzi, Microstrip Lines and Slotlines, 3rd edition. Norwood, MA: Artech House, 2013.
• G. Pelosi, R. Coccioli, and S. Selleri, Quick Finite Elements for Electromagnetic Waves, 2nd edition. Norwood, MA: Artech House, 2009.
• N. K. Nikolova, Introduction to Microwave Imaging. Cambridge: Cambridge University Press, 2017.

## TEACHERS AND EXAM BOARD

Ricevimento: By appointment.

Exam Board

DANIELE CAVIGLIA (President)

ALESSANDRO FEDELI (President)

ANDREA RANDAZZO

MIRCO RAFFETTO

GIAN LUIGI GRAGNANI

MATTEO PASTORINO

## LESSONS

Teaching methods

Lectures and laboratory experiences.

LESSONS START

According to the official time schedule.

## EXAMS

Exam description

At least three questions are asked during the oral exam: the first one is chosen by the student, the second is about theory, the last one is practical (an exercise, typically).

Assessment methods

After this course, students should demonstrate to know the fundamentals of guided electromagnetic propagation, as well as the operating principles of standard guiding systems and basic passive microwave components.

Exam schedule

Date Time Location Type Notes
11/06/2021 09:00 GENOVA Orale
11/06/2021 10:00 GENOVA Esame su appuntamento
11/06/2021 10:00 GENOVA Registrazione
02/07/2021 09:00 GENOVA Orale
09/07/2021 10:00 GENOVA Esame su appuntamento
09/07/2021 10:00 GENOVA Registrazione
22/07/2021 09:00 GENOVA Orale
23/07/2021 10:00 GENOVA Esame su appuntamento
23/07/2021 10:00 GENOVA Registrazione
10/09/2021 10:00 GENOVA Esame su appuntamento
10/09/2021 10:00 GENOVA Registrazione
17/09/2021 09:00 GENOVA Orale