82086 - CIRCUIT DESIGN FOR WIRELESS SYSTEMS M

Conoscenze e abilità da conseguire

Introduction to the principles of performance and to the design techniques of radio-frequency circuits and subsystems used in modern telecommunication systems, in particular mobile radio ones. Knowledge of the main active and nonlinear subsystems and of the methods for their simulation and optimization (deterministic and statistical). Introduction to the use of artificial neural networks.

Contenuti

Introduction to radiofrequency (RF) circuits

Main nonlinear phenomena in RF circuits

Analysis/optimization technique of RF circuits: Harmonic Balance Method

Main nonlinear components of modern transceivers:

• Power Amplifier
• Low noise amplifier
• Mixer

Exploitation of the RF circuit theory for Wireless Power Transfer (WPT) applications:

• Near-field WPT:
  • Inductive/capacitive coupling
  • Resonant inductive/capacitive coupling
  • Position-independent resonant link
  • Practical examples
• Far-field WPT:
  • Rectenna (RECTifying antENNA) definition and possible architectures
  • Antenna choice
  • Rectifier choice
  • Practical examples

Laboratory activity: WPT (both near- and far-field) systems design by means of circuital/electromagnetic co-simulation strategies

Testi/Bibliografia

- Slides of the lectures

- “Nonlinear Microwave and RF Circuits”, Stephen A. Maas, Artech House, 2003

- “Wireless Power Transfer Algorithms, Technologies and Applications in Ad Hoc Communication Networks”, Editors: Sotiris Nikoletseas, Yuanyuan Yang, Apostolos Georgiadis, Springer, 2016

- “Green RFID Systems”, Editor: Luca Roselli, Cambridge University Press, 2014.

Metodi didattici

In the classroom lectures (with slides projection) the analysis and basic design methods of the main nonlinear blocks of modern transceivers are treated,with special emphasis to Wireless Power Transfer applications. Practical examples and prototypes are described/shown in class for a deep understanding of recent wireless and energy-aware solutions. The training hours are devoted to the design/development of application examples.

Modalità di verifica e valutazione dell'apprendimento

Oral exam consisting in a discussion aimed at establishing the student's understanding of the treated principles, methodologies, and laboratory experiments as well as of his/her ability to apply them to practical engineering problems

Strumenti a supporto della didattica

Projection of slides, blackboard, and circuit prototypes

Orario di ricevimento

Consulta il sito web di Diego Masotti

Consulta il sito web di Alessandra Costanzo