Francesco CHIADINI | MICROWAVES
Francesco CHIADINI MICROWAVES
cod. 0612400030
MICROWAVES
| 0612400030 | |
| DIPARTIMENTO DI INGEGNERIA INDUSTRIALE | |
| EQF6 | |
| ELECTRONIC ENGINEERING | |
| 2020/2021 |
| OBBLIGATORIO | |
| YEAR OF COURSE 3 | |
| YEAR OF DIDACTIC SYSTEM 2018 | |
| SECONDO SEMESTRE |
| SSD | CFU | HOURS | ACTIVITY | |
|---|---|---|---|---|
| ING-INF/02 | 6 | 60 | LESSONS |
| Objectives | |
|---|---|
| THE COURSE AIMS TO PROVIDE BASIC KNOWLEDGE ON THE PHENOMENA OF GUIDED PROPAGATION REGIME AND PROPAGATION IN FREE SPACE, TOGETHER WITH THE TOOLS FOR THE ANALYSIS AND SYNTHESIS OF PASSIVE MICROWAVE DEVICES AND CIRCUITS AND ANTENNAS. AT THE END OF THE COURSE, THE STUDENT WILL BE ABLE TO ANALYZE AND DESIGN SIMPLE PASSIVE MICROWAVE DEVICES, AND ANTENNAS. IT IS FORESEEN A LABORATORY ACTIVITY AIMED AT LEARNING THE USE OF A PCB PROTOTYPE MACHINE FOR THE REALIZATION OF DEVICES IN PLANAR TECHNOLOGY. 1. KNOWLEDGE AND COMPREHENSION SKILLS: BASIC KNOWLEDGE OF FREE AND GUIDED PROPAGATION PHENOMENA, TOGETHER WITH TOOLS FOR THE ANALYSIS AND SYNTHESIS OF PASSIVE MICROWAVE DEVICES AND CIRCUITS AND ANTENNAS. 2. ABILITY TO APPLY KNOWLEDGE AND UNDERSTANDING: ABILITY TO USE PASSIVE MICROWAVE DEVICES AND TO MEASURE ITS TRANSMISSION CHARACTERISTICS. 3. AUTONOMY OF JUDGEMENT: ABILITY TO OPERATE IN THE LABORATORY, RECOGNIZE INSTRUMENTATION, KNOW HOW TO SET UP THE INSTRUMENTAL BENCHES NEEDED FOR MEASUREMENTS AT MICROWAVE FREQUENCIES, CRITICALLY EVALUATE MEASUREMENT DATA AND DRAW CONCLUSIONS. 4. COMMUNICATIVE SKILLS: ABILITY TO OPERATE INDIVIDUALLY AND AS PART OF A GROUP IN EXPERIMENTAL ACTIVITIES, WRITE CLEAR AND WELL-STRUCTURED RELATIONSHIPS, CONSULT TECHNICAL AND SCIENTIFIC LITERATURE IN ENGLISH, COMMUNICATE EFFECTIVELY. 5. LEARNING SKILLS: BEING ABLE TO APPLY THE KNOWLEDGE ACQUIRED; TO DEEPEN THE TOPICS COVERED USING SOURCES AND MATERIALS OTHER THAN THOSE PROPOSED |
| Prerequisites | |
|---|---|
| THE COURSE REQUIRES THE KNOWLEDGE OF FOLLOWING TOPICS: GENERAL THEOREMS OF THE ELECTROMAGNETISMS, WAVE PROPAGATION IN FREE SPACE, WAVE PROPAGATION IN WAVEGUIDES. IT IS REQUIRED ALSO A THOROUGH KNOWLEDGE LINEAR ALGEBRA, PARTIAL DIFFERENTIAL EQUATIONS, THE THEORY OF CIRCUITS, THE PHASORIAL FORMALISM AND THE FOURIER TRANSFORM. |
| Contents | |
|---|---|
| WAVEGUIDE AND COMPONENTS (6 HR LECTURES, 1 HR EXERCISE) RECTANGULAR WAVEGUIDE; HIGH-ORDER MODES; GUIDED SURFACE WAVES; MICROSTRIP LINES; WAVEGUIDE COMPONENTS; LUMPED AND DISTRIBUTED ELEMENTS IN MICROSTRIP LINE. THE SMITH CHART (2 HR LECTURES, 1 HR EXERCISE) PROPERTIES OF THE SMITH CHART; USING THE SMITH CHART. LOAD MATCHING (4 HR LECTURES, 3 HR EXERCISE) QUARTERWAVE TRANSFORMER; MATCHING NETWORKS WITH A SINGLE DISTRIBUTED ELEMENT (SERIES AND PARALLEL STUB); MATCHING NETWORKS WITH 2 AND 3 DISTRIBUTED ELEMENTS (PARALLEL STUBS). CIRCUIT THEORY OF WAVEGUIDE COMPONENTS (5 HR LECTURES, 1 HR EXERCISE) EQUIVALENT VOLTAGES AND CURRENTS; IMPEDANCE MATRIX; SCATTERING MATRIX; 2-PORT JUNCTION; 3- PORT JUNCTION; TRANSMISSION MATRIX. RESONANT CIRCUITS (3 HR LECTURES, 1 HR EXERCISE) CHARACTERISTIC PARAMETERS OF A RESONANT CIRCUIT; RESONANT TRANSMISSION LINES; RESONANT CAVITIES. MICROWAVE FILTERS (5 HR LECTURES, 3 HR EXERCISE) BINOMIAL AND CHEBISHEV FILTERS; FILTER DESIGN BY THE INSERTION LOSS METHOD; FILTER IMPLEMENTATION WITH DISTRIBUTED ELEMENTS; MICROWAVE AMPLIFIER DESIGN; GAIN AND STABILITY; NUMERICAL ANALYSIS OF THE FILTER RESPONSE WITH ANSYS-HFSS SOFTWARE. MICROWAVE HEATING (5 HR LECTURES) ELECTROMAGNETIC CHARACTERISTICS OF MATERIALS; MICROWAVE HEATING; INSTRUMENTATION AND COMPONENS FOR MICROWAVE HEATING. MICROWAVE LABORATORY (20 HR) POWER AND FREQUENCY MEASUREMENTS; WSVR MEASUREMENTS; IMPEDANCE MEASUREMENTS; WAVEGUIDE COMPONENTS CHARACTERIZATION BY REFLECTOMETRY; MICROSTRIP COMPONENT CHARACTERIZATION BY NETWORK ANALYZER. |
| Teaching Methods | |
|---|---|
| TEACHING METHOD DURING CLASSES ARE LECTURES FOR 4CFU (40 HOURS), WITH THE HELP OF CLASSWORKS, LABORATORY EXPERIENCES (IN TEAM) FOR 2CFU (20 HOURS). IT IS MANDATORY TO ATTEND THE WHOLE 20 HOURS LABORATORY AND AT LEAST THE 80% OF THE ENTIRE COURSE. STUDENT WHO CANNOT PARTICIPATE TO ONE LABORATORY CLASS, IF ADEQUATELY ARGUMENTED, CAN CATCH UP IN NON-SCHEDULED TIME. |
| Verification of learning | |
|---|---|
| THE EXAMINATION INCLUDES THE DRAFTING OF TECHNICAL REPORTS, THE CONDUCT OF A WRITTEN TEST AND AN ORAL ONE. IN ORDER TO BE ADMITTED TO THE ORAL, THE STUDENT MUST PASS THE WRITTEN TEST WITH A MINIMUM GRADE OF 18/30 AND HAVE DRAWN UP, INDIVIDUALLY OR IN GROUPS OF STUDENTS, AT LEAST THREE OF THE FOUR REPORTS CONCERNING LABORATORY ACTIVITIES. THE WRITTEN TEST IS AIMED AT ASSESSING THE OPERATIONAL CAPABILITIES IN THE STUDY OF SIMPLE MICROWAVE DEVICES (PASS-BAND FILTERS, LOW-PASS FILTERS, MATCHING CIRCUITS). THE TECHNICAL REPORTS ON THE MEASURES CARRIED OUT IN THE LABORATORY EXPERIENCES ARE INTENDED TO ASSESS: ACQUIRED KNOWLEDGE, AUTONOMY OF JUDGMENT AND COMMUNICATION SKILLS. THE FINAL ORAL EXAMINATION IS AIMED AT DEEPENING THE LEVEL OF THEORETICAL KNOWLEDGE, THE AUTONOMY OF ANALYSIS AND JUDGMENT, AS WELL AS THE EXHIBITION CAPABILITIES OF THE STUDENT. THE LEVEL OF EVALUATION OF THE TESTS TAKES INTO ACCOUNT THE EFFICIENCY OF THE METHODS USED, THE COMPLETENESS AND ACCURACY OF THE RESPONSES, AS WELL AS THE CLARITY IN THE PRESENTATION. THE MINIMUM LEVEL OF ASSESSMENT, EQUAL TO 18/30, IS ATTRIBUTED WHEN THE STUDENT DEMONSTRATES PERFUNCTORINESS IN THE APPLICATION OF THE PROPOSED CIRCUIT SOLUTION METHODS AND HAS A LIMITED KNOWLEDGE OF THE MAIN PROPERTIES OF THE DIFFERENT TYPES OF COMPONENTS AND CIRCUITS. THE MAXIMUM LEVEL (30) IS ATTRIBUTED WHEN THE STUDENT DEMONSTRATES A COMPLETE AND IN-DEPTH KNOWLEDGE OF THE METHODS AND IS ABLE TO SOLVE THE PROBLEMS PROPOSED BY EFFICIENTLY AND ACCURATELY COMING TO THE SOLUTION AND SHOWS A REMARKABLE ABILITY TO CONNECT THE PROPERTIES OF DIFFERENT TYPES OF COMPONENTS AND CIRCUITS. THE FINAL SCORE IS OBTAINED AS THE AVERAGE OF THE THE WRITTEN AND ORAL TESTS ALONG WITH TECHNICAL REPORTS WITH THE FOLLOWING WEIGHT: WRITTEN TEST: 50% OF THE FINAL VOTE; LABORATORY REPORTS: 15% OF THE FINAL VOTE; ORAL INTERVIEW: 35% OF THE FINAL VOTE. PRAISE IS ATTRIBUTED WHEN THE CANDIDATE SHOWS SIGNIFICANT MASTERY OF THEORETICAL AND OPERATIONAL CONTENT AND SHOWS THAT HE CAN PRESENT TOPICS WITH CONSIDERABLE LANGUAGE PROPERTIES AND AUTONOMOUS PROCESSING CAPABILITIES EVEN IN CONTEXTS OTHER THAN THOSE PROPOSED BY THE TEACHER. |
| Texts | |
|---|---|
| [1] D. M. POZAR, "MICROWAVE ENGINEERING", 2ND ED., J. WILEY & SONS INC., 1998 [2] R. E. COLLIN, "FOUNDATIONS FOR MICROWAVE ENGINEERING, JOHN WILEY & SONS LTD., NEW YORK 2000. [3] J.-S. HONG, M. J. LANCASTER, "MICROSTRIP FILTERS FOR RF/MICROWAVE APPLICATIONS", JOHN WILEY & SONS LTD., NEW YORK 2001. [4] TEACHER’S NOTES AVAILABLE ON THE UNISA TEACHER'S WEBSITE |
| More Information | |
|---|---|
| DURING THE CLASSES, STUDENTS ARE ENCOURAGED TO CHECK THEIR UNDERSTANDING OF THE SUBJECTS THE COURSE DEAL WITH, DOING A TRIAL TEST. SUCH A TEST IS NOT A MID-TERM EXHAM. |
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