Transmission Delay Line Based ID Generation Circuit for RFID Applications

Chamarti, Aravind; Varahramyan, Kody

doi:10.1109/lmwc.2006.884897

Cited by 116 publications

(62 citation statements)

References 6 publications

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“…This is the advantage of the C-section because of its dispersive property, which discriminates it from linear or meandered transmission line. In the case of linear or meandered line, any variation in length can cause a change in the total delay and will be independent of the frequency, which is the case for the entire existing time domain chipless RFID [7][8][9][10][11][12][13].…”

Section: Operating Principlementioning

confidence: 99%

See 1 more Smart Citation

A Temporal Multi-Frequency Encoding Technique for Chipless Rfid Based on C-Sections

Nair¹,

Perret²,

Tedjini³

2013

PIER B

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Abstract-A time domain chipless RFID tag based on cascaded microstrip coupled transmission line sections (C-sections), which can operate in multi-frequency bands is presented. The group delay characteristics of the C-sections are exploited to generate the tag Identification (ID). The tag comprises cascaded commensurate group of C-sections and two cross-polarized ultra wide-band (UWB) antennas. Since the proposed tag can operate in multi-frequency bands, this paper proves the possibility of increasing the coding capacity compared to the existing time domain designs. A tag operating at ISM (Industrial Scientific and Medical) bands at 2.45 GHz and 5.8 GHz together with conformance of frequency and power regulations is discussed elaborately. The prototype of the device is fabricated and validated experimentally. The time domain characteristic of the tag is also validated experimentally by interrogating a short pulse. Furthermore, measurement results using commercial Ultra Wide Band (UWB) radar which can be used as a chipless RFID reader is also incorporated. The obtained results confirm the concept and the possibility of using temporal multi-frequency in chipless RFID.

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Section: Operating Principlementioning

confidence: 99%

“…Meandering can be conveniently used for reducing marge surface area [9][10][11][12]. However, in all cases, the coding capacity can be increased only by increasing the length of transmission line [13].…”

Section: Introductionmentioning

confidence: 99%

A Temporal Multi-Frequency Encoding Technique for Chipless Rfid Based on C-Sections

Nair¹,

Perret²,

Tedjini³

2013

PIER B

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“…This task obviously presents different challenges that have been faced in the last years by original approaches to the exploitation of different EM signature strategies for encoding the information. For example, the ID has been stored in the frequency response of the tag [16,17], as well as in the timing of the response [18,19],and also by exploiting the phase [20,21] or the polarization [22,23] of the scattered field. Moreover, a suitably designed chipless RFID can be also employed as a sensor for monitoring quantities, such as humidity [24][25][26], temperature [27], and gas [28], even in harsh environments [29].…”

Section: Introductionmentioning

confidence: 99%

Chipless Radio Frequency Identification (RFID) Sensor for Angular Rotation Monitoring

Genovesi

Costa

Borgese³

et al. 2018

Technologies

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A novel, chipless, Radio Frequency Identification (RFID) sensor is proposed for monitoring angular rotation. The rotation state is recovered by collecting the cross polar response of a tag, based on a periodic surface composed of a set of dipoles. The encoding mechanism allows the sensor to be very robust, even if it is applied on metallic objects, or in an environment with strong multipath. The proposed sensor does not require a large operational bandwidth. Instead, only a small set of reading frequencies are required. The number of reading frequencies required is dependent on the number of the employed dipoles. It is demonstrated that the rotation state of an object can be monitored within a span of 180 degrees, with up to a three-degree resolution, by employing a chipless RFID sensor comprising of four dipoles. The far field reading scheme and the absence of any electronics device allow the sensor to be employed in harsh environments.

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“…Many designs are now available and one can classify the tags depending on their coding. The tags can be coded in the time domain [5][6][7][8][9][10][11], or in the frequency domain [12][13][14][15][16][17]. Currently, the best performance in terms of coding capacity and miniaturization is achieved by frequency encoded chipless tags.…”

Section: Introductionmentioning

confidence: 99%

A Novel Polarization Independent Chipless Rfid Tag Using Multiple Resonators

Laila¹,

Thomas²,

Nijas³

et al. 2015

PIER Letters

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Abstract-A novel polarization independent RFID tag employing multiple resonators is proposed. The prototype of the tag is fabricated on a low-cost substrate of dielectric constant 4.4 and loss tangent 0.02. Designing a reader for chipless RFID is a hard task since both the polarization and operating frequency agility have to be implemented. The new tag design proposed in this paper is polarization independent, making the design of the reader easier. A prototype of a 3 bit data encoded tag is demonstrated using single structure which can be extended to any order by cascading. This new design is experimentally validated in the frequency domain using monostatic measurement with magnitude response to decode the information.

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Transmission Delay Line Based ID Generation Circuit for RFID Applications

Cited by 116 publications

References 6 publications

A Temporal Multi-Frequency Encoding Technique for Chipless Rfid Based on C-Sections

A Temporal Multi-Frequency Encoding Technique for Chipless Rfid Based on C-Sections

Chipless Radio Frequency Identification (RFID) Sensor for Angular Rotation Monitoring

A Novel Polarization Independent Chipless Rfid Tag Using Multiple Resonators

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