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TITLE COURSE

Fundamentals of radio propagation and antennas

DESCRIPTION

Theory of radio propagation. Antennas for radio communication systems.

HOW THE COURSE IS STRUCTURED

Theoretical session with projection slides. Practical session. Questionnaire for the evaluation of learning.

COURSE DURATION

1 day

PROGRAM

Propagation of radio waves

General information on the propagation
Ground wave
Surface waves
Space waves
Tropospheric propagation
Sky wave (or reflected wave)
Ionospheric propagation

Elements of transmission lines

General equations on the propagation
Propagation conditions along the line
Reflection coefficient
The standing wave
Standing wave report
Input impedance
Adaption with section ?/4
Adaption with stab

Fundamentals parameters of antennas

Irradiation pattern
Power density of radiation
Radiation intensity
Directivity
Gain
Antennas efficiency
Bandwidth
Polarization
Antenna impedance
Lenght and effective area of antenna
Friis transmission equation

Antennas

Wire antennas
Hertzian dipole
Short dipole
Electromagnetic filed region: Far-field (Fraunhofer); near-field region
(Fresnel); reactive near field
Finite-lenght dipole
Dipole ?/2
Linear antennas on the ground
Loop antennas
Primary coil
Loop
Linear and planar array antennas
Braodside arrays
Endfire arrays
Banwidth dipoles and antennas
ABiconical antennas
Yagi-Uda
Log-periodic antenna
Aperture antennas
Horn antennas
Parabolic reflector antennas
Planar antennas

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