On the Improvement of Baseband Section of Frequency-Domain Vector Chipless RFID Readers

Forouzandeh, Mohammadali; Aliasgari, Javad; Karmakar, Nemai Chandra

doi:10.1109/jrfid.2022.3145585

Cited by 4 publications

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When it comes to custom-designed frequency-domain systems, scalar, homodyne, and superheterodyne architectures have also been reducing read time/system latency, and mitigating selfinterference due to signals from the transmitter leaking into the receiver sub-section of the reader. By the virtue of lacking phase information, scalar readers also suffer from calibrationbased limitations and high receiver noise power [82,86,186,254,[258][259][260][261][262][263]. In addressing the issue of self-interference, selfinterference cancellation boards [86], an UWB compensation unit based on a polyphase power divider [186,235], a compensation unit based on wideband differential phase shifters [264], and a wideband directive filter have been proposed [260].…”

Section: A Reader Architecture Selectionmentioning

confidence: 99%

“…Startup procedure for finding optimum coefficients for the vector modulator and then background measurement 4-8 $800 '22 [261] Time Bistatic Multicarrier system that uses pulse distortion for decoding the tag response. 4.3-7.5 '22 [275] of phase variation in the near-field of horn antennas and therefore, they are typically only used in far-field measurements [90].…”

Section: Background Measurementmentioning

confidence: 99%

See 1 more Smart Citation

A Review of Chipless RFID Measurement Methods, Response Detection Approaches, and Decoding Techniques

Brinker

Zoughi

2022

IEEE Open J. Instrum. Meas.

View full text Add to dashboard Cite

Chipless RFID systems can be considered as a special case of passive RFID systems, where the tag contains no power source and no electronics. Instead, the tag's information is stored in its structure and accessed through its electromagnetic (EM) scattering response. However, robust response detection, which is primarily a function of the measurement method, measurement equipment, and processing method used, is still a major challenge in the chipless RFID field. The consequences of not properly capturing a tag response include, incorrectly assigning an ID or incorrectly reporting a sensing parameter. Due to the criticality of these challenges, this review seeks to provide an overview of the current measurement methods, equipment architectures, and processing methods as they relate to chipless RFID tag response detection and decoding. Since chipless RFID started gaining popularity around 2005, the developments in this area have been focused on three major categories: timedomain, frequency-domain, and spatial-domain systems. Frequency-domain systems have emerged as the most popular among these three categories, and thus, this review focuses on techniques used for these systems.

show abstract