Optional group:
1 INSEGNAMENTO OBBLIGATORIO - (show)
|
9
|
|
|
|
|
|
|
|
20810153 -
ANTENNAS AND PROPAGATION
(objectives)
The course aims to complete training on antennas received in previous courses, particularly in relation to the study and design of aperture antennas, planar antennas and arrays of antennas. It also introduces the problem of electromagnetic scattering from structures present in the air or in the soil. Areas of application: biomedical industry, electrical, electronics and telecommunications.
-
Derived from
20810153 ANTENNAS AND PROPAGATION in Ingegneria delle Telecomunicazioni LM-27 SCHETTINI GIUSEPPE, BACCARELLI PAOLO, TOGNOLATTI LUDOVICA
( syllabus)
Fundamentals of electromagnetic radiation and antenna parameters. Radiation from a short current filament. Radiation from a small current loop. Radiation from arbitrary current distribution. Half-wave dipole antennas. Antenna impedance. Folded dipole, short dipole, and monopole antennas.
Receiving antennas. Reciprocity theorem and effective area. Polarization mismatch. Friis transmission formula. Noise in communication systems. Noise temperature of an antenna.
Introduction to antenna arrays. Uniform one-dimensional arrays. End-fire and broadside arrays. Uniform two-dimensional arrays. Array design. Binomial and polynomial arrays, Chebyshev method. Feeding networks, Butler Matrices. Parasitic and log-periodic arrays.
Aperture antennas. Analysis and synthesis. Radiation from a planar aperture: the Fourier transform method. Radiation from rectangular and circular aperture. Application of field-equivalence principles to aperture radiation. Open waveguides and horn antennas. Ray optics. Microwave lens. Paraboloidal reflector antennas: efficiency, directivity, cross-polarization. Induced current method. Feeds with low cross-polarization. Dual reflector systems. Radiation from slots. Microstrip antennas. Artificial periodic media. Electromagnetic Band-Gap media and their application to antennas.
Scattering of the radiation: general environment and canonical cases. Plane-wave scattering by a conducting cylinder, E- and H- polarization. Dielectric cylinder.
( reference books)
A. Paraboni, M. D’Amico, “Radiopropagazione” Mc Graw-Hill Libri Italia. A. Paraboni, "Antenne", Mc Graw-Hill Libri Italia. C. Balanis, "Antenna theory, analysis and design", 3rd edition, Wiley, Robert E. Collin, "Antennas and Radiowave propagation", McGraw-Hill Book Company.
|
9
|
ING-INF/02
|
72
|
-
|
-
|
-
|
Core compulsory activities
|
ENG |
|
Optional group:
Gruppo 9-11: Tre insegnamenti tra I e II anno per 21 CFU totali, di cui almeno 9 caratterizzanti (B) - (show)
|
9
|
|
|
|
|
|
|
|
20810339 -
ADVANCED ELECTROMAGNETIC COMPONENTS AND CIRCUITS
(objectives)
The course presents the design of electromagnetic components and circuits in modern and advanced applications, including wireless communications, circuits, microwave and optical components and devices, microwave communications and radar, power generation, transfer, and harvesting, with a special emphasis on the innovation brought by artificial electromagnetic materials and metamaterials.
-
Derived from
20810339 ADVANCED ELECTROMAGNETIC COMPONENTS AND CIRCUITS in Ingegneria delle Telecomunicazioni LM-27 TOSCANO ALESSANDRO
( syllabus)
The course is organized in 5 units as follows: PART 1 – EM PROPAGATION AND MATCHING CIRCUITS EM modeling of guiding structures, Real matching circuits for guiding structures, Narrowband and Wideband matching networks, Wideband binomial and Chebyshev impedance transformers. PART 2 – MICROWAVE NETWORKS: MODELS AND PROPERTIES Matrix representations of microwave networks (Matrix ABCD, Impedance and admittance matrices, Scattering matrix and relationships to each other), Scattering matrix [S] of a N-port network, Properties of a component: Reciprocity, Matching and Lossless, Signal flow representation of the scattering matrix, Analysis of a complex microwave network and design of matching networks. PART 3 – THREE-PORT COMPONENTS Analysis of a three-port network, Analysis and design of a Circulator, Analysis and design of Power Dividers (Junction dividers, Lossy dividers, Wilkinson dividers) in balanced and unbalanced configuration). PART 4 – FOUR-PORT COMPONENTS Analysis of a four-port network, Properties of Directional Couplers (DC), Analysis of symmetric and antisymmetric directional couplers, Analysis of hybrid directional couplers, Design of directional couplers. PART 5 – DESIGN OF MICROWAVE NETWORKS AND ADVANCED COMPONENTS Introduction to the design of microwave and millimeter-wave networks (filters and small signal microwave amplifier). Introduction to the use of electromagnetic and microwave circuit CAD software. Introduction to microwave and millimeter-wave components based on metamaterials for radar, satellite and wireless communication application.
( reference books)
The text books used as reference for the course are: 1) Notes available on Teams 2) “Microwave engineering”, autore David Pozar, editore Wiley 3) “Electromagnetic Waves and Antennas”, autore S.J. Orfanidis (free book online) 4) “Microwave solid state circuit design”, autori: I Bahl e P. Bhartia, editore: Wiley 5) “Foundation of Microwave Engineering”, autore: Robert E. Collin, editore: Wiley 6) “The stripline circulator: Theory and practice” , autore: J. Helszajn, editore: Wiley
|
9
|
ING-INF/02
|
72
|
-
|
-
|
-
|
Core compulsory activities
|
ENG |
20810153 -
ANTENNAS AND PROPAGATION
(objectives)
The course aims to complete training on antennas received in previous courses, particularly in relation to the study and design of aperture antennas, planar antennas and arrays of antennas. It also introduces the problem of electromagnetic scattering from structures present in the air or in the soil. Areas of application: biomedical industry, electrical, electronics and telecommunications.
-
Derived from
20810153 ANTENNAS AND PROPAGATION in Ingegneria delle Telecomunicazioni LM-27 SCHETTINI GIUSEPPE, BACCARELLI PAOLO, TOGNOLATTI LUDOVICA
( syllabus)
Fundamentals of electromagnetic radiation and antenna parameters. Radiation from a short current filament. Radiation from a small current loop. Radiation from arbitrary current distribution. Half-wave dipole antennas. Antenna impedance. Folded dipole, short dipole, and monopole antennas.
Receiving antennas. Reciprocity theorem and effective area. Polarization mismatch. Friis transmission formula. Noise in communication systems. Noise temperature of an antenna.
Introduction to antenna arrays. Uniform one-dimensional arrays. End-fire and broadside arrays. Uniform two-dimensional arrays. Array design. Binomial and polynomial arrays, Chebyshev method. Feeding networks, Butler Matrices. Parasitic and log-periodic arrays.
Aperture antennas. Analysis and synthesis. Radiation from a planar aperture: the Fourier transform method. Radiation from rectangular and circular aperture. Application of field-equivalence principles to aperture radiation. Open waveguides and horn antennas. Ray optics. Microwave lens. Paraboloidal reflector antennas: efficiency, directivity, cross-polarization. Induced current method. Feeds with low cross-polarization. Dual reflector systems. Radiation from slots. Microstrip antennas. Artificial periodic media. Electromagnetic Band-Gap media and their application to antennas.
Scattering of the radiation: general environment and canonical cases. Plane-wave scattering by a conducting cylinder, E- and H- polarization. Dielectric cylinder.
( reference books)
A. Paraboni, M. D’Amico, “Radiopropagazione” Mc Graw-Hill Libri Italia. A. Paraboni, "Antenne", Mc Graw-Hill Libri Italia. C. Balanis, "Antenna theory, analysis and design", 3rd edition, Wiley, Robert E. Collin, "Antennas and Radiowave propagation", McGraw-Hill Book Company.
|
9
|
ING-INF/02
|
72
|
-
|
-
|
-
|
Core compulsory activities
|
ENG |
20802052 -
FUNDAMENTALS OF PHOTOVOLTAICS
(objectives)
The course provides basic understanding of physics and technology of photovoltaic devices, from first generation silicon solar cells (crystalline, polycrystalline, amorphous) to second (thin-films technology) and third generation (multi-junction) solar cells. The course deals with devices, modules and systems and includes an introduction to storage and distribution of solar energy. The objective is to provide the specific knowledge for the design, analysis and characterization of solar cells and systems. The course includes a number of laboratory experiments on solar cells and SPICE simulations
-
COLACE LORENZO
( syllabus)
Introduction: History of photovoltaics. PV costs, markets and forecasts. Goals of today’s PV research and manufacturing. Global trends in performance and applications. Progress and challenges. Concentration PV systems. Future of emerging PV technologies. Physics of the Solar Cell: Solar radiation. Fundamentals of semiconductors. Light absorption. Recombination. Carrier transport. Solar cell fundamentals. I–V characteristics and relevant parameters. Efficient solar cells. Surface recombination. Efficiency and band gap. Spectral response. Parasitic resistance. Temperature effects. Concentrator solar cells. High-level injection. Limitation on energy conversion. Concepts for improving the efficiency. Crystalline Silicon Solar Cells and Modules: Crystalline Silicon. Crystalline Si solar cells. Manufacturing. Crystalline Si photovoltaic modules. Electrical and optical performance of modules. Field performance. Thin-film Silicon Solar Cells: Review of current thin-film Si cells. Design concepts of TF-Si solar cells. Future trends. High-Efficiency III-V Multijunction Solar Cells: Physics of III-V multijunction solar cells. Cell configuration. Computation of device performance. Materials issues. Future-generation solar cells. Photovoltaic Concentrators: Basic types of concentrators. Historical overview. Optics of concentrators. Amorphous Silicon–based Solar Cells: Atomic and electronic structure of hydrogenated amorphous Silicon. Depositing amorphous Si. Understanding a-Si cells. Multijunctions. Continuous roll-to-roll manufacturing on flexible substrates. Cu(InGa)Se2 Solar Cells: Material properties. Deposition. Junction and device formation. Device operation. Manufacturing. Device performance. Measurement and Characterization of Solar Cells and Modules: Rating PV performance. I-V Measurements. Spectral responsivity. Module qualification and certification. Photovoltaic Systems: Introduction to PV systems and applications. Components for PV systems. Future developments in photovoltaic system technology. Electrochemical storage. Power conditioning. Energy collected and delivered by PV modules. Economic analysis and environmental aspects of photovoltaics. PC1D simulation of solar cells. Laboratory experiments: I-V characterization, extraction of relevant parameters.
( reference books)
M.A. Green "Solar Cells: Operating Principles, Technology, and System Applications" (Prentice-Hall) J. Nelson "Physics of Solar Cells" Imperial College Press 1st (first) Edition
+ additional contents on Moodle e-learning platform
|
6
|
ING-INF/01
|
42
|
-
|
-
|
-
|
Core compulsory activities
|
ITA |
20810202 -
MICRO AND NANOTECNOLOGY ELECTRONICS
(objectives)
Aim of the course is to analyze the main micro and nano electronic technologies used for high frequencies, organic and diplay electronics. Emerging technologies, such as graphene, Quantum Wires (QW) and Carbon Nanotubes (CNT) will be also analyzed. The course will be completed by a detailed analysis of quantum computing.
-
ROSSI MARIA CRISTINA
( syllabus)
Very large scale integration of electronic devices, submicrometer MOSFET, short channel effect, drain induced barrier lowering (DIBL), gate leakage current. High frequency electronics for TLC: bandgap engineering, heterojunction bipolar transistor (HBT) and high electron mobility transistor (HEMT), realization techniques. Heterojunction strain engineering (STRAINTRONICS), organic electronics on flexible substrates, wearable electronics: organic semiconductors and devices, charge transport, realization techniques. Electronic technology for display: liquid crystal display (LCD), organic light emitting diode (OLED), quantum dot (QD) display, structure and properties of quantum dots. Emerging technologies Graphene electronics: structure, properties and realization techniques. Nanoelectronic logic circuits: quantum wires (QW). structure, properties and realization techniques. Nanometric chemical sensors and biosensors: carbon nanotubes (CNT). structure, properties and realization techniques. Quantum computing: quantum bits (Qubits), quantum logic gates and quantum algorithms. Quantum entanglement.
( reference books)
ThomasBrozek, Micro- and Nanoelectronics: Emerging Device Challenges and Solutions, CRC Press (2014)
|
6
|
ING-INF/01
|
48
|
-
|
-
|
-
|
Core compulsory activities
|
ITA |
20810086 -
EXPERIMENTAL SUPERCONDUCTIVITY
(objectives)
The learner will acquire information on: applications of superconductivity, the main experimental methods employed on superconductors, the basics of the main theoretical models. He/she will be able to identify the specific features of superconductivity that are exploited in superconductor-based systems and devices.
-
SILVA ENRICO
( syllabus)
1 Introduction to Superconductivity. Zero resistance, persistent currents. Persistent Current Switch. Meissner effect. Type-II and type-II superconductors. Critical fields. Fluxoid quantization. London equations. Two fluid model.
2 Superconducting materials. Elements and Alloys: technological superconductors. High-Tc superconductors. Iron-based superconductors. Anisotropic superconductors.
3 Theory. Basics of microscopic BCS theory. Thermodynamics of the superconducting state. Ginzburg-Landau theory.
4 Radiofrequency superconductivity AC conductivity. Surface impedance. Superconducting rf devices. Superconductors for accelerating cavities and for large experiments.
5 Type-II superconductivity.. Fluxons or vortices. Abrikosov lattice. Lower and upper critical fields. Fluxon motion. Pinning. Irreversibility. Bean model. Flux-flow, flux-creep, TAFF.
6 Energy applications SFCL; Superconducting magnets for nuclear fusion reactors; SMES; Flywheels
7 Superconductivity in quantum computing
8 (additional topic) Josephson effect. Feynmann derivation. RCSJ model. dc Josephson effect. Shapiro steps. Voltage standard. SQUID; effect of a magnetic field, critical current and quantum interference. Weak screening. Applications.
( reference books)
List of the textbooks used. A detailed list of chapters and paragraphs is on the website. Additional material (slides, short texts) can be found on the website. Website: http://www.sea.uniroma3.it/eldem/
[BK] W. Buckel, R. Kleiner, "Superconductivity - Fundamentals and Applications", Wiley
[EH] C. Enss, S. Hunklinger, "Low-Temperature Physics", Springer
[FS] K. Fossheim, A. Sudbø, "Superconductivity - Physics and applications", John Wiley and Sons, Ltd.
[IW] Iwasa, "Case Studies in Superconducting Magnets", 2nd Edition, Springer
[OD] T.P. Orlando, K.A. Delin, "Foundations of Applied Superconductivity", Addison Wesley si vedano anche le slide del corso "Applied Superconductivity" del MIT (Open CourseWare)
[OPe] F. J. Owens, Ch. P. Poole, Jr., "Electromagnetic Absorption in the Copper Oxide Superconductors", Springer
|
6
|
ING-INF/07
|
48
|
-
|
-
|
-
|
Core compulsory activities
|
ITA |
|