Antennas and Propagation

Lecturer:

Tutor:

Supervisor:

Department of Electromagnetic Field

Synopsis:

Basics of radio transmission for electromagnetic wave propagation pint of view, power budget, wave propagation in different frequency bands and different media. Antenna theory, principle of duality, reciprocity, complementarity. Impedance, directional and other antenna parameters. Wire antennas. Antenna arrays. Planar and reflector antennas, lenses, special antennas - wide band antennas. Basics of antenna measurement. Antenna in communication channel - criteria for antennas for specified communication services.

Requirements:

Basic knowledge of electromagnetic field theory. http://www.elmag.org

Syllabus of lectures:

1. Basics of radiation and propagation in free space

2. Antenna parameters a antenna measurement methods

3. Wire antennas, current distribution, input impedance, mutual impedance

4. Antenna arrays

5. Loop antennas, slot antennas, patch antennas

6. Geometrical optics methods, planar structures

7. Horn antennas

8. Reflector antennas

9. Multi-reflector antennas

10. Lenses and radomes

11. Wide-band antennas, helix, spirals, log-per antenna

12. Transmission media influence on wave propagation

13. Reflection, diffraction and scattering of electromagnetic wave, link ower budget

14. Wave propagation according to frequency band

Syllabus of tutorials:

1.Introduction, math software

2.Antenna parameters calculations

3.Wire antennas - calculations

4.Analysis of antenna arrays - software simulations

5.Synthesis of antenna arrays - software simulations

6.Yagi - Uda antenna - analysis - project

7.Yagi - Uda antenna design - project

8.Design of horn antenna - software simulation

9.Reflector antenna design - project

10.Input impedance measurements - antenna laboratory

11.Radiation pattern measurement - antenna laboratory

12.Measurement of the antenna gain - antenna laboratory

13.Wireless link power budget - software simulation

14.Presentations of projects and measurement results

Study Objective:

Study materials:

1. Johnson, C.R.: Antenna Engineering Handbook. McGraw-Hill, Inc., London, 1993

2. Mott, H.: Antennas for Radar and Communications. John Wiley and Sons, Inc., New York, 1992

3. Milligan, T.A.: Modern Antenna Design. McGraw-Hill Book Company. London, 1985

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Telecommunications and Radio-engineering - High-frequency and Microwave Technology- structured studi (compulsory course)
• Telecommunications and Radio-engineering - Opto-electric Systems- structured studies (compulsory course)
• Telecommunications and Radio-engineering - Radio Communications, Navigation and Radar Systems- struc (compulsory course)
• Telecommunications and Radio-engineering - Multimedia, Sound and Television Technology- structured s (compulsory course)
• Telecommunications and Radio-engineering - Telecommunications- structured studies (compulsory course)