Subject: PHOTONICS AND MICROWAVES (A.A. 2020/2021)
Unit Photonics and Microwaves
Related or Additional Studies (lesson)
The course aim is to provide knowledge and design methodology for waveguides (metallic and optical fiber), sources, and detectors (antenna, lasers, photodiodes) of electromagnetic waves in the microwave and optical frequency ranges.
This course requires that the students have studied the compulsory courses in electromagnetics at UNIMORE, or equivalent courses at other universities.
-Introduction and overview (1CFU)
- Electromagnetic Spectrum; Microwave applications; Wireless systems; Optical and Photonic Applications;
- One dimensional waves; transmission line theory; scattering parameters
- Antennas (1 CFU)
- Fundamentals: radiation pattern; drectivity and gain; radiation resistance; effective area; Friis transmission formula.
- Aperture type antennas: the Fourier transform method; radiation from planar aperture; Uniform and tapered aperture field; radiation from slots.
- Microstrip antennas: Basic Characteristics; feeding methods;
- RFID systems
- Automotive antennas.
- Plane waves (1 CFU)
- Uniform and evanescent plane waves
- Uniform plane wave incidence on a discontinuity plane
- Waveguides (2 CFU).
- Cylindrical structures and their modes; Mode properties; Dispersion and attenuation.
- Metallic Waveguides: Rectangular and Circular Waveguides; Modes; Cut-off frequency; Phase and Group velocities.
- Dielectric Waveguides: Slab; Optical Fiber; Radiating Modes; Propagation Loss.
- Photonic Sources and Detectors (3 CFU).
- LEDs and Lasers: stimulated emission, resonant cavity;
- Photodiodes and photovoltaic cells
- Laboratory activity (1 CFU)
- Use of a electromagnetic simulator
- Design of a printed antenna
- Return loss and radiation pattern measurement of the designed prototype
Teaching acitivities shall include: 1) in class lectures 2) laboratory activities carried out in groups of 2 students
Oral and lab reports Final grading: it is a weighted average with weights: - lab report: 20% - oral: 80%
Knowledge and understanding skills:
Through lectures and in-class open discussions, the student:
- understands the operating principles of the main microwave and photonics devices;
Through the laboratory activity, the students learns:
- how to use an electromagnetic simulator;
- how to use the instrumentation to characterize microwave devices.
Ability to apply knowledge and understanding:
By means of laboratory exercises, the students has developed enough knowledge to:
- correctly use an electromagnetic simulator and critically analyze its output results;
- design printed antennas with electromagnetic simulators;
- measure the main antenna parameters and analyze the results.
Independence in evaluating:
By means of the in-class open discussions and the preparation process to the oral examination, the student improves his/her skills in:
- critically evaluating the concepts and analytical tools presented during the course;
- evaluating the opportunity of employing a certain device within a complex optical or photonic system.
Through the written report regarding the laboratory activity, the students:
- understands and critically evaluates the results obtained in the laboratory and the consequences of his/her assumptions;
Through preparation process to the oral examination, the student develops the ability to express concepts learnt during the course with the appropriate language and to hold relevant conversations.
Through the written report regarding the laboratory activity, the student develops the ability to present the achieved results in a clear and effective way and to use the appropriate terminology.
The described activities will allow the student to learn the theoretical and methodological tools to independently carry on his/her own updates.
F. S. Marzano, N. Pierdicca, "Fondamenti di Antenne", Carocci 2011 (1st ed.)
S. Selleri, L. Vincetti, A. Cucinotta, "Optical and Photonic Components", Esculapio (2nd ed. 2015)
Constantine A. Balanis, "Antenna Theory: Analysis and Design," John Wiley & Sons Inc., 1982 (1st ed.), 1997(2nd ed.)
G. Keiser, Optical Fiber Communications, Mc-Graw-Hill
J. A. Buck, Fundametal of Optical Fibers, Wiley