Effects of Bending Bow-Tie Chipless RFID Tag for Different Polymer Substrates

Khan, Muhammad Usman Ali; Raad, Raad; Foroughi, Javad; Tubbal, Faisel; Theoharis, Panagiotis Ioannis; Raheel, Muhammad

doi:10.1109/icspcs47537.2019.9008594

Cited by 7 publications

(7 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Comparing the entries in Table 5 , it can be deduced that the effects of bending or curvature of different polymer substrates have a different impact on FS at different levels of bending [ 80 ]. The resonant frequency and the return loss are analyzed for polymer-based antennas for curvature up to 6mm.…”

Section: Discussion On the Existing Workmentioning

confidence: 99%

“…Depending on the type of application, it is vital to choose a suitable flexible material as a substrate. In last few decades, various types of flexible materials have been adopted as substrates for antennas to provide flexibility including textile or fabrics [ 44 , 155 , 156 , 157 , 158 , 159 ], paper [ 160 , 161 , 162 , 163 , 164 , 165 ] and polymers [ 3 , 7 , 8 , 10 , 14 , 15 , 26 , 28 , 29 , 39 , 55 , 57 , 58 , 59 , 61 , 62 , 63 , 73 , 77 , 78 , 79 , 80 , 81 , 85 , 86 , 104 , 139 , 148 , 149 , 166 , 167 , 168 , 169 , 170 , 171 , 172 , 173 , 174 , 175 , 176 , 177 ...…”

Section: Flexible Substrate Materials For Wearable Antennasmentioning

confidence: 99%

“…PET exists in both transparent (amorphous) and semi-crystalline form in accordance with its processing and thermal history [ 212 ]. An interesting material due to its thermal, electrical and moist stability and flexibility, PET has tremendous chemical resistive and physical properties [ 60 , 80 , 211 ].…”

Section: Flexible Substrate Materials For Wearable Antennasmentioning

confidence: 99%

See 2 more Smart Citations

Bending Analysis of Polymer-Based Flexible Antennas for Wearable, General IoT Applications: A Review

et al. 2021

Self Cite

View full text Add to dashboard Cite

Flexible substrates have become essential in order to provide increased flexibility in wearable sensors, including polymers, plastic, paper, textiles and fabrics. This study is to comprehensively summarize the bending capabilities of flexible polymer substrate for general Internet of Things (IoTs) applications. The basic premise is to investigate the flexibility and bending ability of polymer materials as well as their tendency to withstand deformation. We start by providing a chronological order of flexible materials which have been used during the last few decades. In the future, the IoT is expected to support a diverse set of technologies to enable new applications through wireless connectivity. For wearable IoTs, flexibility and bending capabilities of materials are required. This paper provides an overview of some abundantly used polymer substrates and compares their physical, electrical and mechanical properties. It also studies the bending effects on the radiation performance of antenna designs that use polymer substrates. Moreover, we explore a selection of flexible materials for flexible antennas in IoT applications, namely Polyimides (PI), Polyethylene Terephthalate (PET), Polydimethylsiloxane (PDMS), Polytetrafluoroethylene (PTFE), Rogers RT/Duroid and Liquid Crystal Polymer (LCP). The study includes a complete analysis of bending and folding effects on the radiation characteristics such as S-parameters, resonant frequency deviation and the impedance mismatch with feedline of the flexible polymer substrate microstrip antennas. These flexible polymer substrates are useful for future wearable devices and general IoT applications.

show abstract

Section: Discussion On the Existing Workmentioning

confidence: 99%

Section: Flexible Substrate Materials For Wearable Antennasmentioning

confidence: 99%

Section: Flexible Substrate Materials For Wearable Antennasmentioning

confidence: 99%

See 1 more Smart Citation

Bending Analysis of Polymer-Based Flexible Antennas for Wearable, General IoT Applications: A Review

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…To conduct the measurement, the testing is performed in the FRANKONIA anechoic chamber, having a frequency range of 30 MHz to 40 GHz. The compact Bow-Tie RFID tag design is highly flexible and the bit codes are successfully obtained up to the bending radius of 14mm [38]. The Bow-Tie RFID tag undergoes bending for the following cases of curvatures, flat, 14mm and 27mm, see Figure 7 (b).…”

Section: Experimental Setup and Rcs Resultsmentioning

confidence: 99%

Transient Response & Electromagnetic Behaviour of Flexible Bow-Tie Shaped Chip-less RFID Tag for General IoT Applications

Khan¹,

Raad²,

Foroughi³

2020

Adv. sci. technol. eng. syst. j.

Self Cite

View full text Add to dashboard Cite

This paper is an extension of Novel Flexible Chip-less Bow-Tie RFID tag in which we presented the design, testing and fabrication of the tag and compared the results with Octagonal Chipless RFID tag. The chipless RFID tag was designed by using simulation software CST microwave studio and fabricated by using laser etching technique on a flexible polymer substrate Polyethylene Terephthalate (PET). The tag operates at frequency ranging from 8 to 18 GHz uses the Frequency Selective Surface (FSS) approach. A series of experiments are performed to measure the Radar Cross Section (RCS) in an anechoic chamber. The tag design is composed of six concentric Bow-Tie shaped loop resonators with one unitary element. In this paper, we demonstrated the Singularity Expansion Method (SEM) based circuit modelling and the transient behaviour of the RFID tag is performed. The coupling coefficients and the induced currents over the surface of Bow tie shaped rings are evaluated. The maximum read range is evaluated and the Bow-Tie RFID tag is proved to be more accurate and efficient with the variation of distance up to 1.8m at 0dBm which is extendable to 2.14m for higher input power. This range is maximum to our knowledge for such a high-frequency range of 8-18GHz. The 4-bits Bow-Tie Chipless RFID tag design is compact and can be deployed commercially for general IoT applications.

show abstract

“…Thus, choosing the right reader and tag antenna to maximize the range distance is essential. For the chipless RFID system, apart from producing good performance antenna and encoding elements, it is also crucial to choose materials that are flexible, compact and durable for all of the chipless RFID components, including the substrate and the conductive element [5]. Furthermore, the chipless RFID system mostly implements a frequency signature for encoding data due to its ability to maximize high capacity data with high range distance as compared to the time-domain signature [6].…”

Section: Introductionmentioning

confidence: 99%

High Capacity and Miniaturized Flexible Chipless RFID Tag Using Modified Complementary Split Ring Resonator

et al. 2021

View full text Add to dashboard Cite

This paper aims to produce a high data capacity and miniaturized flexible chipless RFID tag based on the frequency signature using the Modified Complementary Split Ring Resonator (MCSRR). The proposed 19 bits chipless RFID tag using the frequency shifting technique consists of five slotted overlaying MCSRR with Different Width (MCSRR with DW) structures and the dimension of 48 mm × 48 mm. The structure is designed by using a flexible (Polyethylene Terephthalate ) PET substrate with permittivity of 0.2. The operating frequency is between 0.9 GHz and 2.7 GHz. The advancement of slotted overlaying MCSRR with DW structures has successfully miniaturized the chipless RFID tag structure to about 107 mm 2 / bit, 0.02λ 2 mid /bit and 0.09 GHz/bit by maximizing the number of resonators in a limited space and minimizing the frequency separation between the resonators. The omnidirectional tag antenna is incorporated with the proposed MCSRR structure using the retransmission measurement method. The log-periodic antenna with a gain of 5-7 dBi is used for this measurement to improve the range distance between tag and reader system. Based on the retransmission measurement involving the antenna tag, the 19 bits chipless RFID tag which consists of five MCSRR with DW structures can be detected with a maximum range distance of 30 cm and a power transmitted level of 30 dBm.INDEX TERMS Flexible chipless RFID tag, metamaterial, split ring resonator (SRR), retransmission method and size miniaturization.

show abstract

Effects of Bending Bow-Tie Chipless RFID Tag for Different Polymer Substrates

Cited by 7 publications

References 15 publications

Bending Analysis of Polymer-Based Flexible Antennas for Wearable, General IoT Applications: A Review

Bending Analysis of Polymer-Based Flexible Antennas for Wearable, General IoT Applications: A Review

Transient Response & Electromagnetic Behaviour of Flexible Bow-Tie Shaped Chip-less RFID Tag for General IoT Applications

High Capacity and Miniaturized Flexible Chipless RFID Tag Using Modified Complementary Split Ring Resonator

Contact Info

Product

Resources

About