Open AccessSingle VCO chipless RFID near‐field reader
Author(s) -
Buchanan N.B.,
Fusco V.
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.1834
Subject(s) - chipless rfid , voltage controlled oscillator , detector , computer science , voltage , electronic engineering , electrical engineering , engineering , resonator
An extremely simple, low‐cost, chipless RFID reader is demonstrated. The reader consists of only a single voltage controlled oscillator (VCO) as the detector front end. The information from the chipless RFID tag appears as a low‐frequency variation on the VCO DC bias supply which is readily detected and demodulated. Experimental results are shown for successful detection of a 10‐bit RFID tag, operating over the frequency range 2.4–3.4 GHz. The results when compared with those taken from a vector network analyser (VNA) prove that the VCO detector can provide a similar level of performance to the more sophisticated VNA arrangement. The proposed solution provides a significant simplification of the chipless RFID reader.