Deze cursusinformatie geeft aan hoe het onderwijs zal verlopen bij pandemieniveau code geel en groen.
Als er tijdens het academiejaar aangepast wordt naar code oranje of rood, zijn er wijzigingen mogelijk o.a. in de gebruikte werk - en evaluatievormen.

4-Telecommunication 1

Course Code :1529FTITLC
Study domain:Electronics
Academic year:2020-2021
Semester:2nd semester
Contact hours:24
Credits:3
Study load (hours):84
Contract restrictions: No contract restriction
Language of instruction:English
Exam period:exam in the 2nd semester
Lecturer(s)Raf Catthoor

3. Course contents *

Introduction: decibels, the electromagnetic spectrum

Transmission lines: network approach

  • Line parameters R, G, L, C; travelling sine wave on a lossless line
  • Travelling sine wave on a lossy line
  •               The wave equation and solution
  •               Characteristic impedance; propagation constant; attenuation coefficient
  •               Example: coaxial line
  • Group velocity and dispersion
  • The transmissielijn in time: reflections.
  •               The creation of a reflected wave
  •               Border conditions at the beginning and end of the line
  •               Step response:
  •                             voltage and current along the line
  •                             voltage at the beginning and at the end of the line as a function of time
  •                             Bergeron-diagram
  •               Pulse response.
  • Reflected waves in sinusoidal regime on a lossless line
  •               The relation between V+ and I+ , V- and I-
  •               Standing waves; standing wave ratio
  •               Vector representation of incident and reflected wave
  •               Time domain reflectometry
  • Noise and interference
  • Summary
  • Exercises

Electromagnetic waves

  • Electromagnetic plane waves; Pointing vector; Polarisation
  • Spherical waves
  • Waves propagating between two conducting planes
  • Reflection and refraction of plane waves; border conditions at the boundary dielectricum/dielectricum and dielectricum/ideal conductor; Brewster angle; Total internal reflection

Transmission line examples

  • Coaxial line
  • Microstrip line
  • Waveguides: modes, cutoff frequency; coupling with coax
  • Twisted pair

Antennas and arrays

  • Reciprocity
  • Radiaton pattern, directivity, gain
  • Antenna impedance, antenna efficiency, effective area
  • Dipoles and related antennas
  • horn antennas, dish antennas
  • Arrays

Waves in free space

  • Sending and receiving in free space; Friis transmission equation
  • Noise
  • Microwave links
  • Communication via satellites; calculations
  • Earth propatation beyond horizon
  • Navigation with GPS.
  • Broadcasting, cable networks, mobile phones
  • Radar
  • RFID

Waves in a medium with losses

  • Loss-tangent, penetration depth
  • Atmosferic losses and ground losses
  • Microwave heating