The Course aims at giving the fundamentals in the design of circuits and components for wireless systems. The students will be encouraged to directly apply the learned techniques to practical cases, also with use of specialized software
Introduction to wireless systems: standards and frequency bands. Standards for mobile communications, wireless LAN, and bluetooth. Emerging standars in the millimeter frequency band for wireless outdoor and indoor links. Applications to wireless power transfer. Standards for radar systems.
Microwave Integrated Circuits (MIC) e Monolithic Microwave Integrated Circuits (MMIC). Transmission line theory. Matching of the line: Smith chart; quarter of wavelength matching; single stub matching. Lumped components for microwave circuits: chip components and Surface Mounted Device (SMD). Integrated circuits in microstrip line: technologies and design formulas for microstrip lines. Microstrip impedances: lumped and distributed impedances. Microstrip components and antennas to be integrated in MIC. Microwave circuits in Substrate Integrated Waveguide (SIW). Design of a SIW waveguide. Dominant mode and cut-off frequency. Integrated antennas in SIW technology. Design and simulation of microwave microstrip and SIW circuits through dedicated electromagnetic software.
Systems for energy harvesting and wireless power transfer. Rectennas for the radio frequency: antenna, matching circuit, and rectifier.
Radar systems. Radar equation: localization of the target, and radar cross-section evaluation. Working principle of the pulsed radar, and the system architecture. The Ground Penetrating Radar: antenna and receiver; application to buried object detection.