Compact microstrip patch UHF-RFID tag antenna for metal object

Ali, Mohd Tarmizi; Ismail, I.; Sukaimi, N. H. M.

doi:10.1109/iswta.2014.6981179

Cited by 12 publications

(4 citation statements)

References 14 publications

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“…Particularly, the proposed antenna was also compared with other referenced anti-metal RFID tag antennas in Table 3 in terms of size, simulation reading distance, and bandwidth. In order to facilitate the comparison of the parameters between different antennas, EIRP is unified to a typical value of 2 W. From Table 3, the tag in [7] has poor performance in all aspects. The bandwidth of the tag in [16] is only 8 M, even if it has a similar size and a longer reading distance.…”

Section: Maximum Tag Reading Distance Testmentioning

confidence: 99%

“…In [6], the impedance matching between the antenna and the tag chip can be achieved by adjusting the length of the feeder. The antenna performance can also be improved by adding a T-shaped matching structure [7] or an E-shaped groove [8] in the antenna. Agrawal et al designed an asymmetric tri-band antenna, which can maintain good radiation performance on the car's surface, but its size is relatively large [9].…”

Section: Introductionmentioning

confidence: 99%

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Design and Implementation of Long-Distance Dual Pifa Antenna Structure of Small Embedded Metal Uhf Rfid Tag

Yan¹,

Lu²,

Zhang³

et al. 2021

PIER C

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As the advanced technology in the Internet of Things (IoT), ultra-high frequency radio frequency identification (UHF RFID) tag has broad application prospects and significant research value. However, the transmission performance of UHF RFID on the metal surface and embedded in metal is severely impaired, bringing new challenges to its application for long-distance reading and writing. On this basis, an embedded metal UHF RFID tag design method is proposed in this paper. A planar inverted F antenna (PIFA) structure is optimized to enhance the anti-metal performance of the tag. The embedded feed design is adopted to achieve preferable impedance matching between antenna and chip. Besides, a series of electromagnetic simulations were investigated to optimize the performance of the tag, which can ultimately achieve the maximum gain of −9.7 dB in the metal groove, with the reduced volume of 19.8 mm × 25.8 mm × 2 mm by employing the meandering technology and the method of adding metal via holes. Finally, when the self-made tag is embedded in the metal groove, the experimental results demonstrate that the maximum reading distance can reach 1.26 m, indicating that the tag developed in this paper has significant practical value in the case of embedded metal.

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Section: Maximum Tag Reading Distance Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Long-Distance Dual Pifa Antenna Structure of Small Embedded Metal Uhf Rfid Tag

Yan¹,

Lu²,

Zhang³

et al. 2021

PIER C

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show abstract

“…However, this method significantly increases the size, complexity, and cost of the tag antenna. In addition, there are planar inverted-F antennas (PIFAs) and microstrip patch antennas, which use a metal ground plane to isolate the tag antenna from the metal environment [6,7]. In [8], dual planar inverted-F antennas are arranged in a cross pattern to achieve directional insensitivity.…”

Section: Introductionmentioning

confidence: 99%

A Low-profile UHF RFID Tag Antenna Loaded with Rectangular Loop for Double-sided Anti-metal Applications

Wang,

Yuan

2024

PIER C

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A low-profile ultra-high frequency (UHF) radio frequency identification (RFID) tag antenna for double-sided anti-metal applications is proposed. The antenna comprises a middle layer of radiation patch, which is sandwiched between two layers of foam substrates, each with a thickness of 0.5 mm, and flanked by two layers of ground plane. A rectangular loop is designed on the radiation patch to expand the frequency band and optimize impedance matching. Particularly, one side of the radiation patch is shorted to the ground through a slotted stub to reduce the antenna size. The tag antenna is compact with a dimension of 38 mm × 20 mm × 1.15 mm (0.1159λ×0.061λ×0.0035λ at 915 MHz). When the two ground planes are individually mounted on metallic objects, the read distances are 5.4 m and 5.2 m, respectively. The proposed tag antenna demonstrates double-sided metal resistance, making it highly suitable for use in the industrial internet of things field.

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“…The design of the tag antenna is based on the application requirements of the antenna, and the different requirements are derived from the actual application environment of the tag. At present, the main research contents of UHF RFID tags are focused on RFID system application design, 1 tag chip research, and antenna optimization design. In terms of antenna design, it mainly focuses on the improvement of antenna performance, 2,3 such as antenna and chip impedance matching, 4 increasing the tag bandwidth and reducing the return loss.…”

Section: Introductionmentioning

confidence: 99%

A novel reverse design method of tag antenna based on image analysis

Liu

Zhao

Yu³

et al. 2020

Journal of Algorithms & Computational Technology

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Since the working efficiency of the entire radio frequency identification system depends on the performance of the radio frequency identification tag antenna, the research and design of the tag antenna have received attention, especially for radio frequency identification tags applied to special scenes. We mainly studied the effect of antenna bending on the performance of ultra-high frequency radio frequency identification systems, and combined the bent antenna with the impedance matching loop to achieve impedance matching between the chip and the antenna in the ultra-high frequency band. We analyzed the variation of tag antenna performance with antenna parameters by the simulation software High Frequency Structure Simulator (HFSS). At the same time, we propose a novel antenna reverse design method. Through the analysis of the antenna-specific absorption rate image, the antenna performance intensity is visually reflected. According to the image analysis result, the antenna parameters are corrected to improve the antenna matching performance. This design method is simpler and faster than other methods.

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Compact microstrip patch UHF-RFID tag antenna for metal object

Cited by 12 publications

References 14 publications

Design and Implementation of Long-Distance Dual Pifa Antenna Structure of Small Embedded Metal Uhf Rfid Tag

Design and Implementation of Long-Distance Dual Pifa Antenna Structure of Small Embedded Metal Uhf Rfid Tag

A Low-profile UHF RFID Tag Antenna Loaded with Rectangular Loop for Double-sided Anti-metal Applications

A novel reverse design method of tag antenna based on image analysis

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