Transmission Lines to Enhance the Reading of UHF RFID Tags on Small Metallic Objects

Imbolatiana Rakotomalala, Pierre Lemaitre Auger, Smail Tedjini
2019 2019 IEEE International Conference on RFID Technology and Applications (RFID-TA)  
This paper presents an antenna-like passive structure that allows to read miniaturized UHF RFID tags attached to small metallic objects. The solution is realized by combing far-field Wireless Power Transfer (WPT) with a Conductor-Baked Coplanar Waveguide (CBCPW) transmission line. Low cost proof-of-concept prototypes were realized on a FR4 substrate. Measurements are in good agreement with simulations. A maximum read range of 2.20 m can be achieved for the far-field operation. Keywords -Passive
more » ... . Keywords -Passive enhancement structure, CBCPW transmission line, Miniature RFID tag, Near-field UHF RFID S 11 (dB) Read Range (m)
doi:10.1109/rfid-ta.2019.8892052 dblp:conf/rfidta/RakotomalalaLT19 fatcat:7fvjbe32e5hlratssokrxmokn4