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Compatibilità Elettromagnetica per la Progettazione Elettronica
Electromagnetic Compatibility for Electronic Design
Valter Mariani Primiani

Seat Ingegneria
A.A. 2016/2017
Credits 9
Hours 72
Period II
Language ENG

Prerequisites
Fundamentals of electromagnetic fields, basic electronic circuits analysis.

Learning outcomes
KNOWLEDGE AND UNDERSTANDING:
The course provides the knowledge and the understanding of the methodologies necessary for the prediction and controlling of electromagnetic interferences among electronic devices and equipment. Broadband knowledge will be provided within an interdisciplinary context ranging from signal theory, electronics, electromagnetics and advanced measurement methods. The student will be informed about the main regulations to be applied in order to achieve the EMC compliance.
CAPACITY TO APPLY KNOWLEDGE AND UNDERSTANDING:
The students will apply the knowledge to reduce the conducted and radiated emissions of complex electronic equipment also characterised by high circuit density. In particular, specific techniques will be applied to design filters, shields, and to mitigate emissions in the early design stage. Similarly, the knowledge will be applied to improve the immunity of complex equipment against electromagnetic hostile excitations.
TRANSVERSAL SKILLS:
The course content and teaching methodologies highlight the connections with other subjects. The student is stimulated to a global approach to each problem by making a synthesis effort. This is particularly important to improve the student learning capability. The study of real life cases, with the production of a report, will allow the opinion sharing among students and stimulate the team working methodology so improving the student communication and interaction skills.

Program
The EMC as a design rule – Signal integrity – Crosstalk in high density printed boards: transmission lines models – common impedance coupling and ground planes – Common mode noise – Digital circuit radiation: exact models – Numerical solution techniques: FDTD and MoM –Prediction of the conducted and radiated emissions in switching mode power supplies: SPICE example – Coupling between radiated field and cables – Shielding effectiveness and transfer impedance – Efficiency of real shield: apertures, joints and gaskets – ESD coupling into electronic equipments – EMI receiver functionality – Reverberation chambers -Case studied analysis based on laboratory tests - Testing techniques for emission and immunity compliance assessment.

Development of the examination
LEARNING EVALUATION METHODS
The examination is oral and it consists in three questions about all the topics. If required, the questions that require some calculation execution will be answered in a written form during the oral examination itself. The questions that require to draw some block diagrams, electric schemes, graphics, and the execution of analytical demonstrations will be answered in a written form during the oral examination itself. Real cases analysed during the course could require to provide a written report by the student. This report could be used to formulate one question during the examination.

LEARNING EVALUATION CRITERIA
To obtain a positive rating, the student must prove a sufficient knowledge about the course topics. Students must explain the topics in a sufficiently corrected way using adequate technical words and phrases. The ability to demonstrate the electromagnetic compatibility principles will be checked, together with the ability to put in relationship several topics and to analyse real practical cases. The highest score will be obtained showing a deep knowledge of the topics presented using a valuable technical language.

LEARNING MEASUREMENT CRITERIA
A score ranging from zero up to ten will be assigned to each question. The score will be given in thirtieths.

FINAL MARK ALLOCATION CRITERIA
The final score is the sum of the score of all questions. The examination is passed if the total score will be equal or greater than eighteen. The “30/30 with distinction” score is reserved to those students who, in addition to a correct and complete answer to all questions, show a strong ability and autonomy in theoretical demonstrations.

Recommended reading
Clayton R. PAUL Introduction to Electromagnetic Compatibility Second Edition, John Wiley & Sons H. W. Ott Noise reduction in electronic systems Second edition, John Wiley Interscience, New york, 1988. Other material eventually given by the professor, if necessary, available on Moodle website.

Courses

• Ingegneria Elettronica (Corso di Laurea Magistrale (DM 270/04))