EMSCAN’s RFxpert is a desktop very-near-field test system that is able to accurately measure radiated power and efficiency for antennas. This system allows designers to easily and quickly check antenna and wireless device performance without always needing to resort to a chamber. New software developed for RFxpert to convert between the very-near-field and the far-field has shown that radiation patterns can now be measured more accurately. These improvements to pattern accuracy mean that gain measurements can now be reliably done on the desktop scanners provided by EMSCAN again reducing the reliance on chambers. This presentation will show how very-near-field systems can accurately evaluate antenna performance including gain measurements in seconds. An explanation of the recent advances along with comparative measurements will be provided.

Attendees will Learn:

  • How near-field antenna measurement systems work
  • How a near-field system can be made to fit on a desktop
  • How a near-field system can make measurements in a second
  • How well do desktop near-field systems compare to chambers


Ruska Patton MBA, M.Sc., Director of Product Management, EMSCAN

Ruska Patton is responsible for the evolution of EMSCAN’s real-time very-near-field measurement solutions. Having started with EMSCAN as Design Engineer and then Manager of the Design Group, Mr. Patton now leads the development of new EMSCAN solutions from concept through to successful products in market. Mr. Patton has authored academic papers, presented seminars and holds several patents related to near-field scanning.