UHF RFID Reader Sensitivity Requirements Due to Poor Tag Matching
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Abstract
Passive ultra-high frequency (UHF) RFID systems are conventionally assumed to be downlink limited due to the relatively high power consumption of a tag’s integrated circuit (IC). In this work, it is demonstrated that under certain conditions, tags’ uplink/downlink losses become significantly asymmetrical, causing tens of decibels more loss in the uplink, thus making the system uplink limited. Our study reveals the necessity of developing RFID readers with higher sensitivity. It is shown that in extreme cases, the uplink loss can be 40 dB greater than in the downlink.
Description
Keywords
Journal Title
Conference Name
2022 IEEE 12th International Conference on RFID Technology and Applications (RFID-TA)
Journal ISSN
Volume Title
Publisher
Publisher DOI
Rights
Sponsorship
Engineering and Physical Sciences Research Council (EP/S019405/1)
This work was supported by EPSRC EP /S-19405/1 Channel
Optimised Distributed Passive Sensor Networks.