TY - JOUR
T1 - A novel reader architecture based on UWB chirp signal interrogation for multiresonator-based chipless RFID tag reading
AU - Koswatta, Randika Vishwajith
AU - Karmakar, Nemai Chandra
PY - 2012
Y1 - 2012
N2 - A very low-cost RFID reader architecture comprised of a voltage-controlled oscillator (VCO), a mixer, and a low-pass filter (LPF) for reading an ultra-wideband chipless RFID tag is proposed. The VCO generates a linear chirp (swept) frequency interrogation signal. The reader, which is a coherent frequency-modulated continuous-wave radar, interrogates a tag and decodes the tag s identification data in both amplitude and phase information. A signal-processing technique based on Hilbert transform (HT) is used and accurate detection of a 9-b tag is achieved. The new reader needs only one VCO and does not need any calibration tag to decode data as needed for its predecessors.
AB - A very low-cost RFID reader architecture comprised of a voltage-controlled oscillator (VCO), a mixer, and a low-pass filter (LPF) for reading an ultra-wideband chipless RFID tag is proposed. The VCO generates a linear chirp (swept) frequency interrogation signal. The reader, which is a coherent frequency-modulated continuous-wave radar, interrogates a tag and decodes the tag s identification data in both amplitude and phase information. A signal-processing technique based on Hilbert transform (HT) is used and accurate detection of a 9-b tag is achieved. The new reader needs only one VCO and does not need any calibration tag to decode data as needed for its predecessors.
UR - http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6238332
UR - https://www.scopus.com/pages/publications/84867525231
U2 - 10.1109/TMTT.2012.2203929
DO - 10.1109/TMTT.2012.2203929
M3 - Article
SN - 0018-9480
VL - 60
SP - 2925
EP - 2933
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
IS - 9
ER -