Design and implementation of high data capacity RFID tag using eight-phase encoding

Tavakoli, Mohammad Bagher; Hajghassem, Hassan; Dousti, Massoud; Fathipour, Morteza

doi:10.1080/00207217.2013.769190

Cited by 3 publications

(4 citation statements)

References 9 publications

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“…Unlike the resonator and delay line based SAW RFID tags where the reflectors are designed either as varying frequency chips or as varying time positioned chips, papers [71]- [75] and patent [76] shows the most famous patented design of SAW RFID tags where a combination of the above is used as shown in Fig. 18 and are called Orthogonal Frequency Coding (OFC) based SAW tags.…”

Section: ) Hybrid Design (Resonator and Delay Line) Based Saw Rfid Tagsmentioning

confidence: 99%

A Comparative Survey on Silicon Based and Surface Acoustic Wave (SAW)-Based RFID Tags: Potentials, Challenges, and Future Directions

et al. 2020

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Many Automatic Identification (Auto-ID) technologies such as bar codes, magnetic stripes, Optical Character Recognition (OCR) and Electronic Article Surveillance (EAS) security tags are in existence. However, they are limited by a variety of constraints on them such as limited object rate of scan, need for Line-of-Sight (LOS) operation, very small interrogation range and poor accuracy in complex environments. Research has accordingly grown rapidly in recent years into the development of robust identification or tracking mechanisms. Radio Frequency Identification (RFID) technology using readers and RFID tags, whether passive, semi-passive or active in nature, has been deemed to be a promising candidate. Silicon based IC tags are quite popular. However, some alternative RFID technologies have also been on the rise. In particular, another special type of tag based on Surface Acoustic Wave (SAW) design also has a great potential for deployment in future identification fields due to its ruggedness against harsh conditions, metallic environments, interference, small and low cost and is being thoroughly reviewed, which is ignored in other survey papers. While other chipless RFID systems based on conductive ink, ink-tattoo and others do exist, negative aspects such as inability to survive in extreme weather, larger tag size and limited data storage capacity have severely impacted the penetration of such tags in the RFID market. Therefore, the scope of this survey article does not include chipless RFID tags. This article instead provides a comparative survey of silicon based IC and SAW based tags, which has attracted much attention from both academia and industry. The underlying characteristics, principles, advantages, and limitations of such tags are thoroughly discussed, and relevant research work followed by frequency of operation and other parameters are elaborated. This article undertakes a thorough investigation into the evolution of RFID technology and comparison into the current trend in silicon based IC and SAW based RFID tags and provides a comparison across many metrics, such as read range, tag size, tag power, availability of tag power, lifespan and more importantly, cost and security. It discusses active and passive tags under silicon based IC and SAW technology. Finally, the article reviews recent advances and provides potentials, open challenges and future research directions in such RFID tags. INDEX TERMS RFID tracking/identification, surface acoustic wave (SAW), interdigital transducer (IDT), silicon based integrated circuit (IC) RFID tags, near field, far field communication. 2) ELECTROMAGNETIC BACKSCATTER/FAR FIELD RFID COMMUNICATION

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Section: ) Hybrid Design (Resonator and Delay Line) Based Saw Rfid Tagsmentioning

confidence: 99%

A Comparative Survey on Silicon Based and Surface Acoustic Wave (SAW)-Based RFID Tags: Potentials, Challenges, and Future Directions

et al. 2020

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“…As to the SAW tag echo signal, f 0 = 922.5 MHz and B = 5 MHz. Substitution of the values mentioned above into (6), M should be <18, and the corresponding K should be <36. That is to say, the ADC sampling frequency is slightly larger than 50 MHz to meet the minimum requirement of band-pass sampling in engineering application.…”

Section: Analysis Calculation and Determination Of Sampling Frequencymentioning

confidence: 99%

“…The reader wirelessly interrogates the SAW tag and acquires its echo signal for identifying the tag coding [4,5]. The coding information of the SAW tag usually includes the time slots and the phase slots of all the coding reflectors on the tag [6,7]. With the increase of the coding capacity, the reader is required to calculate the time delays and phases of the echo signal more accurately.…”

Section: Introductionmentioning

confidence: 99%

High‐speed data acquisition of the reader of the SAW RFID system

Chen

Hao

Chen

et al. 2019

IET Science, Measurement & Technology

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“…As the reflector electrode width is much smaller than the required space for a slot, by locating the reflector in an accurate position, the phase of the received pulse could be considered as an extra encoding parameter. Studies with four and eight phase steps were reported in the literature [52,56,57]. The orthogonal frequency coding (OFC) method was developed by Malocha et al [58][59][60].…”

Section: A) Surface Acoustic Wave (Saw)mentioning

confidence: 99%

Chipless RFID tags and sensors: a review on time-domain techniques

Forouzandeh

Karmakar

2015

wpt

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In the past few years Radio Frequency Identification(RFID)has grown to be one of the most popular technologies in the area of identification systems. Following a brief survey of RFID systems, this paper provides a technical review of work undertaken in the field of time-domain chipless RFID tags and sensors. This paper aims not only to address the chipless tags which use Time Domain Reflectometry (TDR) concept for data encoding but also for the use of Ultra-Wideband Impulse-Radar (UWB-IR) as a time-domain measurement technique. The penultimate section intends to focus on time-domain reading setups and finally, a brief comparison between this method and other chipless techniques is provided.

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Design and implementation of high data capacity RFID tag using eight-phase encoding

Cited by 3 publications

References 9 publications

A Comparative Survey on Silicon Based and Surface Acoustic Wave (SAW)-Based RFID Tags: Potentials, Challenges, and Future Directions

A Comparative Survey on Silicon Based and Surface Acoustic Wave (SAW)-Based RFID Tags: Potentials, Challenges, and Future Directions

High‐speed data acquisition of the reader of the SAW RFID system

Chipless RFID tags and sensors: a review on time-domain techniques

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