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Wireless access electromagnetics

01DSPBG

A.A. 2022/23

Course Language

Inglese

Course degree

Master of science-level of the Bologna process in Communications Engineering - Torino

Course structure
Teaching Hours
Lezioni 30
Esercitazioni in aula 18
Esercitazioni in laboratorio 12
Teachers
Teacher Status SSD h.Les h.Ex h.Lab h.Tut Years teaching
Pirinoli Paola Professore Ordinario ING-INF/02 18 7 0 0 1
Teaching assistant
Espandi

Context
SSD CFU Activities Area context
ING-INF/02 6 B - Caratterizzanti Ingegneria delle telecomunicazioni
2022/23
Most of the present applications and future scenarios require a wireless access point, characterized by a proper radiating system, that it is called to meet the challenges of green systems with reduced power consumption, of intelligent transportation systems, high-performance space applications, or pervasive distributed-information and distributed-computing networks and systems, like Internet of Things. Considering different present and emerging applications (e.g. Broadcasting, Mobile communications, WiFi/WLAN, IoT), the suitable radiating systems for each of them will be discussed. Experience in designing antennas is important not only to carry out design tasks in a professional environment, but also to procure antennas and related components, as well as to conceive wireless systems as a whole in a multi-disciplinary environment.
Most of the present applications and future scenarios require a wireless access infrastructure, characterized by a proper radiating system, which is called to meet the challenges of green systems and reduced power consumption, of intelligent transportation systems, of high-performance space applications, or of pervasive distributed-information and distributed-computing networks and systems e.g., Internet of Things. Considering different actual and emerging applications (e.g., Broadcasting, Mobile communications, WiFi/WLAN, IoT), the optimum radiating systems for each of them will be presented and discussed. Hands-on experience in designing antennas is important not only to carry out system definition in a professional environment, but also to procure proper antennas and related components, as well as to conceive wireless access infrastructures as a whole in a multi-disciplinary environment.
Specific ability to design at least one type of antenna to be used in contemporary communication systems, employing antenna theory and computer-based procedures. Knowledge of the main classes of radiating systems currently in use in relevant wireless systems, for the most recent and significant applications. Ability to understand the requirements of radiating systems taking into account of the environment in whici it is embedded. Knowledge of techniques and dedicated tools for their design. Ability to understand and evaluate performance of commercial wireless access systems. Ability to apply the gained knowledges to the design of innovative systems for future scenarios.
Specific ability to design at least one type of antenna adopted in actual communication systems, exploiting antenna theory and computer-based procedures. Knowledge of the main classes of radiating systems currently adopted in relevant wireless systems, for the most recent and significant applications. Ability to understand the requirements of radiating systems considering the environment in which they are embedded. Knowledge of techniques and dedicated tools for radiating systems design. Ability to understand and evaluate performances of commercial wireless access systems. Ability to apply the gained knowledges to the design of innovative systems for future scenarios.
Transmission lines (ability to solve standard problems); Basics of Radiation of EM fields; Basics of Antennas (definition of fundamental parameters); Basics of (wireless) Link budget.
Transmission lines (ability to solve standard problems); Basics of Radiation of EM fields; Basics of Antennas (definition of fundamental parameters); Basics of (wireless) Link budget.
- Introduction to antennas as system components - Antenna system parameters - Noiseless and Noise Link budget - Low and medium gain antennas for Broadcasting, Mobile communications, WiFi/WLAN, IoT (slot, patch, dipole) - UltraWide Band (UWB) antennas - High-gain, reconfigurable and MIMO antennas (Arrays) with beamforming - Fixed beam - Scanning beam - MIMO
- Introduction to antennas as system components - Antenna system parameters - Noiseless and Noise Link budget - Low and medium gain antennas for Broadcasting, Mobile communications, WiFi/WLAN, IoT (slot, patch, dipole) - Ultra-Wide Band (UWB) antennas - High-gain, reconfigurable and MIMO antennas (Arrays) with beamforming - Fixed beam - Scanning beam - MIMO
The Course is organized in two types of activities. 1- Lectures on the theoretical aspects and practical implementation issues (30 hrs), mainly carried on by instructors: topics will be approached from a more theoretical point of view, always referring to the application domain. 2- Activities mostly carried out by the students: a) solution of simple problems connected to the topics developed during lectures: the exercises are solved partially in class and partly at home and can require the development and the use of simple MATLAB scripts (15 hrs); b) numerical laboratories, in which some of the considered radiating systems, starting from the simplest components, are analyzed with dedicated software and experimental lab, in which they are experimentally characterized (15 hrs); c) optional: development of a project, consisting in the design, numerical characterization and measurements of a simple radiating system, for one of the considered applications. The course instructors are responsible for its manufacturing. The activity is carried on in small groups (2-4 people) or exceptionally also by a single student. The aim of this activity is to teach students to face a "real problem", learning to use a commercial tool for the numerical analysis of the component, and to discuss the effects of manufacturing tolerances and the possible discrepancies between computed and measured results.
The Course is organized in two types of activities. 1- Lectures on the theoretical aspects and practical implementation issues (30 hrs), mainly carried on by instructors: topics will be approached from a more theoretical point of view, always referring to the application domain. 2- Activities mostly carried out by the students: a) solution of simple problems connected to the topics developed during lectures: the exercises are solved partially in class and partly at home and can require the development and the use of simple MATLAB scripts (15 hrs); b) numerical laboratories, in which some of the considered radiating systems, starting from the simplest components, are analyzed with dedicated software and experimental lab, in which they are experimentally characterized (15 hrs); c) optional: development of a project, consisting in the design, numerical characterization and measurements of a simple radiating system, for one of the considered applications. The course instructors are responsible for its manufacturing. The activity is carried on in small groups (2-4 people) or exceptionally also by a single student. The aim of this activity is to teach students to face a "real problem", learning to use a commercial tool for the numerical analysis of the component, and to discuss the effects of manufacturing tolerances and the possible discrepancies between computed and measured results.
The learning will be supported by handouts made available by the instructors, via the didattica web portal. Other materials, and relevant sources will also be made available. The provided handouts are all that it is needed for preparing to the final exam. Further bibliographical indications will be given at the starting of the Course.
The learning will be supported by handouts made available by the instructors, via the didattica web portal. Other materials, and relevant sources will also be made available. The provided handouts are all that it is needed for preparing to the final exam. Further bibliographical indications will be given at the starting of the Course.
Modalità di esame: Prova scritta (in aula);
Exam: Written test;
Gli studenti e le studentesse con disabilità o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unità Special Needs, al fine di permettere al/la docente la declinazione più idonea in riferimento alla specifica tipologia di esame.
Exam: Written test;
A- Exam in standard form: written test on problem solving the test will propose problems similar to those assigned during the course, and questions on the lectures. It may encompass design of radiating elements, array factors, beam-forming networks or parts thereof. The test is closed-book (no material allowed), but useful formulas are provided with exam text (to avoid unnecessary mnemonic efforts); the formulas are taken from the course handouts. Duration: 2 hrs. B- Evaluation by grading of submitted assignments + oral discussion - Requires submission of all assignments, in complete form, by the indicated deadlines. The materials to be submitted include reports on the labs. - Assignments must be carried out individually (unless otherwise stated). - Oral discussion: discussion on the submitted assignments. In both cases A and B, the final score can be improved by the submission of a short report on the optional project activity 2c. One report for each group is required, to be delivered before the end of July's exam period. A maximum of 3 additional scores can be gained with this activity.
In addition to the message sent by the online system, students with disabilities or Specific Learning Disorders (SLD) are invited to directly inform the professor in charge of the course about the special arrangements for the exam that have been agreed with the Special Needs Unit. The professor has to be informed at least one week before the beginning of the examination session in order to provide students with the most suitable arrangements for each specific type of exam.
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