Unit AEROSPACE MICROWAVE AND RADIOFREQUENCY SYSTEMS
- Course
- Electronic engineering for the internet-of-things
- Study-unit Code
- 70A00097
- Curriculum
- Elettronica per l'aerospazio
- Teacher
- Roberto Vincenti Gatti
- Teachers
-
- Roberto Vincenti Gatti
- Hours
- 72 ore - Roberto Vincenti Gatti
- CFU
- 9
- Course Regulation
- Coorte 2021
- Offered
- 2021/22
- Learning activities
- Caratterizzante
- Area
- Ingegneria elettronica
- Academic discipline
- ING-INF/02
- Type of study-unit
- Obbligatorio (Required)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- Italian
- Contents
- - References on antenna theory
- Receivers and Transmitters
- Devices for Beam Forming Networks
- Radar Systems
- Wireless Telecommunication System
- Enabling technologies for space-born radar and telecommunication systems
- Use of design and e.m. simulation CAD tools - Reference texts
- K.Chang, RF and Microwave Wireless Systems, J.Wiley & Sons, 2000.
- Educational objectives
- The course makes reference to the design of RF circuits to introduce the students to the knowledge of the basic principles and design techniques in modern RF and millimeter-wave wireless systems for aerospace with applications ranging from radar to telecommunications.
- Prerequisites
- First degree in Engineering
- Teaching methods
- The course is organized as follows:
Classroom lessons on all subjects of the course;
Classroom exercises with the use of software suitable for solving electromagnetic problems. - Other information
- The teacher provides teaching material to illustrate the lecture topics in detail
- Learning verification modality
- The exam provides an oral examination and possibly the presentation of a technical report.
The oral test consists of a discussion lasting about 30 minutes. Aimed at ensuring the level of knowledge and understanding acquired by the student on the theoretical and methodological content developed in the program. The oral test will also allow student to demonstrate communication skills with language ownership and autonomous organization. - Extended program
- - References on antenna theory
Isotropic radiator. Antenna characteristic parameters: directivity, gain, efficiency, effective area. Effective Isotropic Radiated Power (EIRP), antenna noise temperature, G/T, system temperature, active antennas, phased array antennas, smart antennas.
- Receivers and Transmitters
Noise sources, noise figure, noise temperature. Non-linearities effects: intermodulation, compression point, dynamic range, third-order intercept, intermodulation products. Series and parallel of non-linear devices.
- Devices for Beam Forming Networks
Attenuators, power dividers/combiners, hybrid junctions. Wilkinson power divider, Branch-line. Phase shifters: switched line, reflection-type.
- Radar Systems
Radar equation. Pulse integration. Radar Cross Section (RCS). Pulsed radar, Doppler Radar (CW), Frequency Modulated Continuous Wave Radar (FMCW), Monopulse Radar, Comparators.
- Wireless Telecommunication System
Friis equation. Link Budget for transparent systems, Link Budget for regenerative systems. Radio Links. Satellite communication systems. SATCOM on the move.
- Enabling technologies for space-born radar and telecommunication systems
Slotted waveguide array antenna theory. Slot model. Slot mutual coupling. Elliott’s theory. Beam forming networks for slotted waveguide arrays. Design examples. Antennas in printed circuit technology. Radiating elements. Printed circuit beam forming networks. Manufacturing techniques. Reflectarray antennas. Reflectarray antenna theory. Elementary cell model. Design and simulation techniques.
- Use of design and e.m. simulation CAD tools
Use of the commercial software MWO and CST for the design of antennas and microwave components.