ELT-47447 Antennas II, 5 cr


Suitable for postgraduate studies.


Jari Kangas, Jouko Heikkinen


Toteutuskerta Periodi Vastuuhenkilö Suoritusvaatimukset
ELT-47447 2019-01 4 Jari Kangas
The following tasks are mandatory:
(1) Antenna array task (simulation and documentation)
(2) Design, simulation, construction, measurement and documentation of an antenna structure (group work)
(3) Online tasks & homework (certain amount of the points available is required to pass)
(4) Essay & presentation

The total grade is weighted sum of the individual task grades


After completing the course, * student is able to explain features of common antenna types and reason their differences. * student is able to explain principles of radiation from common antenna types. * student is able to design wideband/multiband antennas. * student can apply numerical simulation tools to common antenna design problems and has experience is interpreting their results. * student has experience in constructing antenna type(s) and in use of measurement results in evaluating properties of the constructed antenna(s). * student is able to find information from relevant literature and create a scientific report describing his/her work.


Sisältö Ydinsisältö Täydentävä tietämys Erityistietämys
1. Broadband antennas. Broadbanding of microstrip antennas. Log-periodic and spiral antennas. Numerical simulations of broadband antennas.   Babinet principle  UWB antennas, parameters characterizing antennas in time-domain 
2. Quality factor, fundamental limitations on size, efficiency, and bandwidth of antennas. Examples of other resonant antennas.  Scale models for antennas.   
3. Travelling wave antennas, surface waves.  Pocklington's equation  Method of moments 
4. Aperture antennas. Radiation from a slot, analysis of horn antennas.  Huygens principle  Uniform theory of diffraction 
5. Antenna arrays. Array factor, beam steering, mutual coupling in arrays. Numerical simulations of antenna arrays.   Antenna synthesis   MIMO--systems 
6. Numerical design methods and tools. Construction of antennas (e.g. wideband antennas). Basic antenna measurements. Reporting and interpreting measurement and simulation results.   Basics of simulation algorithms, e.g. method of moments algorithm.   
7. Bodyworn antennas, on-chip antennas, effect of nearby objects on antenna performance. New antenna materials (e.g. textiles)     Metamaterials, Millimeter-Wave antennas  


Opintojakso P/S Selite
ELT-47206 Basics of RF Engineering Advisable    
ELT-47426 Transmission Lines and Waveguides Advisable    
ELT-47436 Antennas I Mandatory    


Opintojakso Vastaa opintojaksoa  Selite 
ELT-47447 Antennas II, 5 cr ELT-47446 Antennas, 8 cr  

Päivittäjä: Kangas Jari, 24.06.2019