Design of Compact UHF-RFID Tag Antenna with Meander Line Technique

Fazilah, Ainur Fasihah Mohd; Jusoh, M.; Zakaria, Amer; Sabapathy, Thennarasan; Ibrahim, Marc; Osman, Mohamed Nasrun; Yaasin, M N; Malhotra, Sambhav; Rahim, Hasliza A.

doi:10.1088/1757-899x/767/1/012058

Cited by 3 publications

(5 citation statements)

References 5 publications

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“…Te proposed tag is observed to exhibit a longer read range than that of tags designed in [37][38][39][40][41][42][43][44][45]. In addition, the size of the proposed tag is smaller than the designed tags in [37,41,[43][44][45][46][47].…”

Section: Rfid Tagmentioning

confidence: 89%

Platform Tolerant RFID Tag Antenna Design for Safety and Real-Time Tracking of On-site Workers at Riskier Workplaces

Bansal

Khanna

Sharma

2023

International Journal of Antennas and Propagation

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The safety of workers is significant when talking about large risky workplaces such as construction job sites. Therefore, we proposed a UHF-RFID tag antenna that can be used to identify various Job site equipments and also construction workers by tagging their wearable helmets. Here, the compact, low profile, and simple structured platform-tolerant RFID tag antenna is proposed and optimized for metal sheet and ABS-based safety helmets. Furthermore, WTMiddleware (Worker Tracking Middleware) using Javascript, CSS, and HTML has been implemented to demonstrate a real-time secured web-based remote access of workers to provide their actual on-site monitoring and tracking of construction equipment carried/operated by the workers for tracking solutions. First, the fabricated tag’s performance was tested successfully in an outdoor scenario on various mountable materials such as wood, glass, plastic, and metal. The tag yielded a reasonable read range of 5.9 m on metallic sheet and 7.1 m on plastic with the highest read distance of 9.3 m on a glass sheet. Also, the measurement setup along with developed WTMiddleware was deployed in an actual workplace to demonstrate practical utility of the designed tag affixed on workers’ safety helmets. It was observed that all the workers wearing tagged helmets were successfully identified, tracked, and monitored. Also, their real-time on-site details, working zone, and complete personal details were accessed through a developed web page application via WTMiddleware.

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Section: Rfid Tagmentioning

confidence: 89%

Platform Tolerant RFID Tag Antenna Design for Safety and Real-Time Tracking of On-site Workers at Riskier Workplaces

Bansal

Khanna

Sharma

2023

International Journal of Antennas and Propagation

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“…Another important electrical characteristic that is related to the reactance value is the Q factor of the antenna. The Q factor is given by the ratio of reactance to input resistance (R in ) [9], as given by (29). The R in values in Table 4 can be used for structures A, B, and C. The X D and X C values shown in Fig.…”

Section: E Measurement Of Radiation Characteristicsmentioning

confidence: 99%

“…Here, Equations ( 16) and ( 24) are used for X C and X D , respectively. However, the Q factor is closely related to the bandwidth (BW) as given by (30) [9].…”

Section: E Measurement Of Radiation Characteristicsmentioning

confidence: 99%

“…2 A compact meander line dipole antenna for RFID tags was designed with a simple structure, including a spiral inductor for size reduction [8]. Furthermore, a small Ultra High Frequency (UHF) RFID tag antenna designed for operation within the Malaysia UHF RFID frequency range (860-960 MHz) was proposed [9]. The design of a miniaturized printed monopole meander line antenna working at a frequency of 920 MHz was investigated for CubeSat communications [10].…”

Section: Introductionmentioning

confidence: 99%

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Analytical Equations for Designing Meander Line Antennas

Hlaing,

Kamardin,

Yamada

et al. 2024

IEEE Open J. Antennas Propag.

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Meander Line Antenna (MLA) is widely employed in compact electronic devices, such as cellular phones and WLAN terminals, owing to its electrically small size. To facilitate practical antenna design, essential equations encompassing self-resonant structure, input resistance, antenna efficiency, and Q factor have been systematically developed. However, the prior self-resonant equations included only inductive reactance (X C ), neglecting the capacitive reactance (X D ) equation. This manuscript addresses this gap by introducing new design equations, presenting a newly derived X D equation and an improved Q factor expression. The inadequacies of the existing Q factor equation, reliant on the radius of a sphere encompassing the antenna, are addressed by proposing a more fitting expression that incorporates antenna structural parameters using the ratio of reactance to resistance. The overview of existing design equations sets the stage for the introduction of these newly developed equations. To assess the accuracy of electromagnetic (EM) simulation results, a comparative analysis is conducted between simulated and theoretically calculated input resistance values. The derivation of new reactance equations involves the development of X C equations based on electromagnetic theory. The X D equation is established by deriving the stored charge equation from electrical near-field distributions obtained through EM simulations. By applying the relationship between charge and capacitance, a new X D equation is obtained. Subsequently, a new self-resonant equation is derived, and the validity of the newly derived equations is confirmed through EM simulation results, ensuring their accuracy. Two MLA prototypes, with lengths of 0.05 and 0.1 wavelengths at 405 MHz, are fabricated and experimentally validated. Smith chart measurements confirm the self-resonant condition and input resistance. By correlating with the VSWR characteristics, the obtained Q factor of approximately 100 aligns successfully with the results from the reactance equation. The antenna gain is verified at -7.7 dBi and -3.5 dBi for antennas with lengths of 0.05 and 0.1 wavelengths, respectively. These findings establish the practical applicability of the proposed equations for antenna design and elucidate the performance of practical antennas.INDEX TERMS Meander line antenna, Q factor, Self-resonant.

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“…The objective of the design was to increase the efficiency of the RFID system without compromising the cost. The meander line antenna is used to substitute a straight dipole antenna in the system for size reduction of the antenna [16]. The short dipole antenna and the meander line design have an inductive shortening loop for the matching section.…”

Section: Theoretical Considerationmentioning

confidence: 99%

Dipole antenna with biconical and pyramidal horn design in radio frequency identification simulations

Africa

Tagabuhin

Tirados

2022

IJEECS

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Radio frequency identification (RFID) systems are used in several applications. It is widely used in retail, corporations, and schools for several purposes such as inventory, identification, and cashless payments. The components of an RFID system include a tag and a reader. The RFID reader includes an RF module that transmits and receives signals. While the RFID tag transmits embedded signals, which is typically some form of identification. The tag is a passive component powered by the reader. The two components make use of antennas to communicate the signals with each other. The design of the antenna is an important factor to consider in the production of the RFID. The size of the antenna must be small enough to provide convenience and the gain must be strong enough to effectively transmit and receive signals between the two components. In this paper, an antenna for an RFID tag is designed using MATLAB software. The antenna to be designed must be cost-efficient and be able to radiate an acceptable gain. This research creates a dipole antenna with biconical and pyramidal horn design in RFID simulations.

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Design of Compact UHF-RFID Tag Antenna with Meander Line Technique

Cited by 3 publications

References 5 publications

Platform Tolerant RFID Tag Antenna Design for Safety and Real-Time Tracking of On-site Workers at Riskier Workplaces

Platform Tolerant RFID Tag Antenna Design for Safety and Real-Time Tracking of On-site Workers at Riskier Workplaces

Analytical Equations for Designing Meander Line Antennas

Dipole antenna with biconical and pyramidal horn design in radio frequency identification simulations

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