1. TECHNICAL UNIVERSITY OF KOSICE FACULTY OF AERONAUTICS
DEPARTMENT OF AVIONICS
Measurements in anechoic chambers 5th International Scientific Conference of Ph.D. Students and Young Scientists and Researchers
Author: Ing. Martin Krchňák
Leader: doc. Ing. Ján Labun, PhD.
Kosice, May 2016

2. Content of presentation
Main object of thesis
Measurement of parameters of antennas
Common system of anechoic chambers
New system of chamber
Comparision of systems
Conclusion

3. Main object of thesis Main object of PhD thesis :
Build up new system for measuring directional parameters of antennas in laboratory enviroment.
Results should be adequate to standard system for measuring in RF anechoic chambers.

4. Measurement of parameters of antennas
Main parameters of antenna
Frequency range
Impedance
Power capabilities
and many others....
Directional parameters
radiation pattern
Polarization
and also many others....

5. Measurement of parameters of antennas
Radiation pattern
Must be measured in RF anechoic chamber for the best results
Any reflection from objects cause lost of accuracy of results

6. Common system of anechoic chambers
mean non-reflective, non-echoing
is a room designed to completely absorb reflections of RF waves in designed frequency range

7. Common system of anechoic chambers
Principle of anechoic chamber

8. New system of chamber Principle of new chamber
Non-echo chamber is no needed
New type of RF panel
Receiving antenna receive only waves reflected from panel
All other reflected waves from objects are „ignored“

9. Comparision of systems
Standard chamber
New type of chamber
VERY expensive
ultra cheap
very precise
we will see...
need a special rooms in building or all building
special rooms are no need
for big organization only
for everyone
only for interior
external or interior use

10. Conclusion Main object of PhD thesis :
Build up new system for measuring directional parameters of antennas in laboratory enviroment.
Expected results are very promising for lot of possible uses
It can bring new and avaible system of measuring for all kind of people or organization
This system is very cheap
Allows to measure antennas in field with the best possible results

11. THE END Thanks for listening Author: Ing. Martin Krchňák
Contact: