RFID : radiofrequency identification, contactless id, electronic id, automatic data collection, RF/ID


Our core expertise

Part of our core expertise and subject of many missions of varying duration is RF/ID technology, where extELF SA has worked predominantly in the KHz / MHz frequency data carrier segment.

More recently, intensive work was done in the field of UHF components and BLE Beacons.

Past experience extends from application specific ASIC development over transponder specification through to embedding / packaging issues of customer specific RF/ID tags for several environments and well reputed international clients.

How does RFID works ?


  • Transmit RF field
  • Power-up circuit
  • Return mod. carrier
  • Demodulate
  • Filter
  • Decode
  • Signal
  • processing
  • Result display