This course aims at giving the student the tools to analyze and design antennas for both base stations and mobile terminals of cellular communication systems.
teacher profile teaching materials
Basic concepts of cellular communication systems. Basic concepts of electromagnetic radiation: free-space green's function, hertz dipole, near-field and far-field. Basic concepts of antennas: historical perspective, antenna types, radiation mechanism, current distribution on linear antennas. Electrical and radiating properties of antennas: radiation intensity, radiation pattern, radiated power, directivity, efficiency, gain, beam-width, polarization, input impedance, bandwidth, effective length and effective area. Friis formula.
PART II – BASE-STATION ANTENNAS
Overview of base station antennas. Omni-directional antennas. Thin and thick dipole antennas. electrical and radiating properties of dipolar antennas. Broadband dipoles. Directive antennas. image principle and employment of reflectors. Dipolar antennas with reflectors. Antenna arrays: uniform antenna arrays for base station panels. Analysis and synthesis methods of the single antenna element of a base station panel. Design examples of omni-directional and directive dipole antennas for GSM900/1800 and UMTS. Space diversity and polarization diversity. Beam forming networks for antenna arrays. Mechanic and electric down tilt. Smart antennas and adaptive antennas.
PART III – ANTENNAS FOR MOBILE TERMINALS
Overview of mobile terminal antennas. Microstrip antennas: basic concepts. Electrical and radiating properties of microstrip antennas. Analysis of microstrip antennas by using the transmission line model. Design techniques of microstrip antennas working in linear, double-linear, and circular polarization. Examples of microstrip antennas for GSM900/1800 and UMTS mobile terminals. examples of microstrip antennas for Bluetooth and Wi-Fi. examples of panels of microstrip antennas to be used as indoor umts base station and Wi-Fi access point antennas.
PART IV – ANALYSIS AND DESIGN OF ANTENNAS (LAB ACTIVITY)
Analysis and design of antennas for base-station and mobile terminals by using electromagnetic simulators. Design of antenna arrays. Antenna measurements and reverse engineering.
- "Cellular communications explained from basics to 3G", autore: Ian Poole, editore: Newnes
- "Fundamentals of cellular network planning and optimization 2G/2.5G/3G-evlolution to 4G", autore: Ajay R. Mishra, editore: Wiley
Programme
PART I – OVERVIEW OF CELLULAR SYSTEMS AND ANTENNASBasic concepts of cellular communication systems. Basic concepts of electromagnetic radiation: free-space green's function, hertz dipole, near-field and far-field. Basic concepts of antennas: historical perspective, antenna types, radiation mechanism, current distribution on linear antennas. Electrical and radiating properties of antennas: radiation intensity, radiation pattern, radiated power, directivity, efficiency, gain, beam-width, polarization, input impedance, bandwidth, effective length and effective area. Friis formula.
PART II – BASE-STATION ANTENNAS
Overview of base station antennas. Omni-directional antennas. Thin and thick dipole antennas. electrical and radiating properties of dipolar antennas. Broadband dipoles. Directive antennas. image principle and employment of reflectors. Dipolar antennas with reflectors. Antenna arrays: uniform antenna arrays for base station panels. Analysis and synthesis methods of the single antenna element of a base station panel. Design examples of omni-directional and directive dipole antennas for GSM900/1800 and UMTS. Space diversity and polarization diversity. Beam forming networks for antenna arrays. Mechanic and electric down tilt. Smart antennas and adaptive antennas.
PART III – ANTENNAS FOR MOBILE TERMINALS
Overview of mobile terminal antennas. Microstrip antennas: basic concepts. Electrical and radiating properties of microstrip antennas. Analysis of microstrip antennas by using the transmission line model. Design techniques of microstrip antennas working in linear, double-linear, and circular polarization. Examples of microstrip antennas for GSM900/1800 and UMTS mobile terminals. examples of microstrip antennas for Bluetooth and Wi-Fi. examples of panels of microstrip antennas to be used as indoor umts base station and Wi-Fi access point antennas.
PART IV – ANALYSIS AND DESIGN OF ANTENNAS (LAB ACTIVITY)
Analysis and design of antennas for base-station and mobile terminals by using electromagnetic simulators. Design of antenna arrays. Antenna measurements and reverse engineering.
Core Documentation
- "Antenna Theory: Analysis and Design", autore: Constantin Balanis, editore: Wiley- "Cellular communications explained from basics to 3G", autore: Ian Poole, editore: Newnes
- "Fundamentals of cellular network planning and optimization 2G/2.5G/3G-evlolution to 4G", autore: Ajay R. Mishra, editore: Wiley
Type of evaluation
The final exam consists of an oral presentation of the contents of the course. The discussion is finalized to check the knowledge of the student on the main concepts of the course and to verify its ability to apply them in realistic scenarios.