ELECTROMAGNETIC FIELDS

Flaminio FERRARA ELECTROMAGNETIC FIELDS

0612400051
DIPARTIMENTO DI INGEGNERIA INDUSTRIALE
EQF6
ELECTRONIC ENGINEERING
2021/2022

YEAR OF COURSE 3
YEAR OF DIDACTIC SYSTEM 2018
PRIMO SEMESTRE
CFUHOURSACTIVITY
12120LESSONS
Objectives
AIM OF THE COURSE IS TO SUPPLY STUDENTS WITH BASE KNOWLEDGE’S ABOUT ELECTROMAGNETIC WAVES AND TO INTRODUCE THEM TO THE METHODOLOGY FOR THEIR QUANTITATIVE ANALYSIS. IN PARTICULAR, THE COURSE DEALS WITH THE PROPAGATION OF ELECTROMAGNETIC WAVES IN FREE SPACE AND IN GUIDING STRUCTURES SUCH AS TRANSMISSION LINES AND HOLLOW WAVEGUIDES.

KNOWLEDGE AND UNDERSTANDING
AT THE END OF THE COURSE THE STUDENT, IN HIS CULTURAL BAGGAGE, HAS:
THE METHODOLOGICAL KNOWLEDGE NEEDED TO TACKLE AND SOLVE PROBLEMS OF APPLIED ELECTROMAGNETICS, WITH AN UNDERSTANDING OF THE RELATED PHYSICAL PHENOMENA;
THE ABILITY TO SOLVE SIMPLE MICROWAVE CIRCUITS;
THE ABILITY TO EVALUATE THE INFLUENCE OF PARAMETERS SUCH AS FREQUENCY, POWER, LOSSES, ETC. IN WAVE PROPAGATION PHENOMENA;
THE ABILITY TO SET UP A SIMPLE RADIO LINK OR A RADIOMOBILE COVERAGE.

APPLIED KNOWLEDGE AND UNDERSTANDING
AT THE END OF THE COURSE THE STUDENT IS ABLE:
TO SOLVE A SIMPLE MICROWAVE CIRCUIT AND TO DESIGN THE RELATED MATCHING NETWORK;
TO ANALYZE, ALSO WITH THE AID OF DEDICATED SOFTWARE, THE PROPAGATION OF ELECTROMAGNETIC WAVES IN A GUIDING STRUCTURE ACCORDING TO ITS GEOMETRY AND ITS TRANSVERSE DIMENSIONS;
TO CHOOSE, BASED ON THE SPECIFICATIONS, THE ANTENNAS TO DESIGN A RADIO LINK OR A RADIOMOBILE COVERAGE.

PERSONAL JUDGMENTS
THE STUDENT IS ABLE:
TO DISCRIMINATE THE PROPAGATING MECHANISMS OF THE ELECTROMAGNETIC FIELD AND THE PARAMETERS DESCRIBING THE RADIATION CHARACTERISTICS OF AN ANTENNA BOTH IN TRANSMISSION AND RECEPTION;
TO ANALYZE A MICROWAVE CIRCUIT.

COMMUNICATION SKILLS
BEING ABLE TO EXPOSE, IN A CLEAR AND CONCISE WAY, THE ISSUES RELATED TO THE PROPAGATION AND RADIATION ASPECTS OF THE ELECTROMAGNETIC FIELD, BY MAKING USE OF AN ADEQUATE TECHNICAL TERMINOLOGY AND OF THE TOOLS OF THE MATHEMATICAL AND GRAPHIC REPRESENTATION OF THE PHENOMENA EXPOSED.

LEARNING SKILLS
BEING ABLE TO APPLY THE ACQUIRED KNOWLEDGE TO DIFFERENT CONTEXTS FROM THOSE PRESENTED DURING THE COURSE;
BEING ABLE TO DEEPEN THE TOPICS USING MATERIALS OTHER THAN THOSE PROPOSED FOR THE COURSE.
Prerequisites
FOR THE SUCCESSFUL ACHIEVEMENT OF THE OBJECTIVES, A SUITABLE KNOWLEDGE OF MATHEMATICS AND PHYSICS IS REQUIRED, AS GUARANTEED BY THE BASIC MATHEMATICS AND PHYSICS COURSES.
Contents
ELECTROMAGNETIC THEORY: MAXWELL'S EQUATIONS; CONSTITUTIVE RELATIONS; BOUNDARY CONDITIONS; POYNTING'S THEOREM (HOURS: 15 THEORY - 0 EXERCISES - 0 LABORATORY).
ELECTROMAGNETIC WAVE PROPAGATION IN HOMOGENEOUS MEDIA: PLANE WAVES; REFLECTION AND TRANSMISSION OF PLANE WAVES AT THE INTERFACE BETWEEN TWO MATERIALS. (HOURS: 20 THEORY - 5 EXERCISES - 0 LABORATORY).
TRANSMISSION LINES AND DISTRIBUTED PARAMETER COMPONENTS: LINE EQUATIONS AND THEIR SOLUTION; IMPEDANCE MATCHING. (HOURS: 20 THEORY - 5 EXERCISES - 0 LABORATORY).
ELECTROMAGNETIC WAVE PROPAGATION IN METALLIC WAVEGUIDES: PROPAGATION MODES AND THEIR PROPERTIES; RECTANGULAR WAVEGUIDE; CIRCULAR WAVEGUIDE AND COAXIAL CABLE. (HOURS: 20 THEORY - 10 EXERCISES - 0 LABORATORY).
ELECTROMAGNETIC WAVE PROPAGATION IN FREE SPACE - ANTENNAS: RADIATION FROM ELECTRIC AND MAGNETIC SOURCES. HALLEN'S INTEGRAL EQUATION. PARAMETERS CHARACTERIZING A TRANSMITTING OR RECEIVING ANTENNA. RECIPROCITY THEOREM. FRIIS’ TRANSMISSION EQUATION. (HOURS: 20 THEORY - 5 EXERCISES - 0 LABORATORY).
Teaching Methods
THE COURSE INCLUDES THEORETICAL LESSONS AND CLASSROOM EXERCISES ON THE TOPICS PROPOSED DURING THE THEORETICAL LESSONS.
DURING THE LESSONS THE TOPICS COVERED ARE PRESENTED WITH GRADUALLY INCREASING THEIR COMPLEXITY. IN THE EXERCISES, THE STUDENT IS ASKED TO SOLVE PROBLEMS RELATED TO THE TOPICS COVERED IN THE THEORETICAL LESSONS. THE RESOLUTION METHOD CONSISTS OF UNDERSTANDING THE PROBLEM, PLANNING THE SOLUTION, AND FINALLY THE RESOLUTION ITSELF. DURING THIS LAST STEP, THE HABIT OF EVALUATING THE REASONABLENESS OF THE RESPONSE AND VERIFYING ITS CONSISTENCY IS PROMOTED.
Verification of learning
THE DEGREE OF LEARNING OF THE STUDENT ON THE FUNDAMENTAL PRINCIPLES OF ELECTROMAGNETIC FIELD PROPAGATION IS ASSESSED BY AN ORAL EXAM OF AN AVERAGE DURATION OF 45 MINUTES. THE EVALUATION GRADE, RANGING FROM 18/30 TO 30/30 CUM LAUDE, WILL DEPEND ON THE MATURITY ACQUIRED BY THE STUDENT ON THE COURSE CONTENTS. DURING THE COURSE IT IS POSSIBLE TO PERFORM TWO PARTIAL EXONERATIVE TESTS, RESPECTIVELY AFTER ONE HALF OF THE LESSONS AND AT THE END OF THE COURSE. EACH TEST WILL WEIGH 50% ON THE FINAL EVALUATION AND THE FINAL EVALUATION GRADE WILL BE GIVEN BY THE WEIGHTED AVERAGE OF THE TWO TESTS.
IN PARTICULAR, THE EXAM AIMS:
TO VERIFY THE LEARNING OF THE TOPICS COVERED IN THE THEORETICAL LESSONS;
TO VERIFY THE ABILITY TO EXPOSE THE COVERED TOPICS;
TO VERIFY THE PERSONAL JUDGMENT IN PROPOSING THE MOST APPROPRIATE APPROACH TO ARGUE WHAT IS REQUIRED.
TO PASS THE EXAM (MINIMUM GRADE 18), IT IS NECESSARY TO DEMONSTRATE TO HAVE ACHIEVED A SUFFICIENT GRADE OF LEARNING OF THE TOPICS COVERED IN THE THEORETICAL LESSONS AND, EVENTUALLY, TO BE ABLE TO SOLVE A PROPOSED ELECTROMAGNETIC PROBLEM (IN THE FREE SPACE OR IN A GUIDED STRUCTURE).
THE MAXIMUM GRADE (30/30) IS ATTRIBUTED WHEN THE STUDENT DEMONSTRATES A COMPLETE AND IN-DEPTH KNOWLEDGE OF THE VARIOUS TOPICS COVERED IN THE THEORETICAL LESSONS AND IS ABLE TO SOLVE ELEGANTLY AN ELECTROMAGNETIC PROBLEM IN THE FREE SPACE OR IN A GUIDED STRUCTURE, TO ANALYSE A MICROWAVE CIRCUIT AND TO OUTLINE A DESIGN OF A RADIO LINK
MOREOVER, TO BE AWARDED CUM LAUDE, IT WILL BE TAKEN INTO ACCOUNT:
THE QUALITY OF ORAL EXPOSITION, IN TERMS OF THE USE OF AN APPROPRIATE SCIENTIFIC LANGUAGE;
THE ABILITY OF CROSS-CORRELATION BETWEEN THE DIFFERENT TOPICS OF THE COURSE AND, WHEN POSSIBLE, WITH THOSE OF OTHER DISCIPLINES;
THE DEMONSTRATED PERSONAL JUDGMENT.
Texts
C. GENNARELLI, DISPENSE DEL CORSO DI CAMPI ELETTROMAGNETICI.
G. GEROSA, P. LAMPARIELLO, LEZIONI DI CAMPI ELETTROMAGNETICI, ED. INGEGNERIA 2000
F.T. ULABY, FONDAMENTI DI CAMPI ELETTROMAGNETICI, MCGRAWHILL, 2006.
G. FRANCESCHETTI, ELECTROMAGNETICS, PLENUM PRESS, NEW YORK, 1997.
More Information
PLACE AND TIME OF DELIVERY:
THE COURSE IS DELIVERED AT THE DEPARTMENT OF INDUSTRIAL ENGINEERING. PLEASE LOOK UP INTO THE DEPARTMENT WEBSITE (HTTPS://WWW.DIIN.UNISA.IT/EN) FOR THE INDICATION OF THE TIMETABLE AND OF THE CLASSROOM.
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