Fixed UHF RFID Reader Antenna Design for Practical Applications: A Guide for Antenna Engineers With Examples

Parthiban, P.

doi:10.1109/jrfid.2019.2920110

Cited by 20 publications

(16 citation statements)

References 19 publications

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“…This means that only 1.9% of the input power is getting reflected back. It is very important for an RFID antenna to have a good return loss specification to avoid RFID reader damages [1]. The −15 dB return loss bandwidth for this antenna is 140 MHz.…”

Section: Resultsmentioning

confidence: 99%

“…RFID systems can further be classified based on their frequency of operation. Ultra-High Frequency (UHF) RFID is a type of passive RFID system that operates in the UHF frequency band [1]. A typical UHF RFID system consists of Items/assets, Tags, readers, reader antennas, firmware and software to operate the UHF RFID readers and Network (intranet or internet).…”

Section: Introductionmentioning

confidence: 99%

“…The 'over-the-air-communication' efficiency is critical for a reliable RFID system. Both the tag and the reader antennas in a UHF RFID system are resonant antennas [1]. Tag antennas are typically simple and are multidirectional dipole-like structures, and reader antennas are directional planar antennas.…”

Section: Introductionmentioning

confidence: 99%

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Embeddable Miniature Uhf Rfid Near-Field Antenna for Healthcare Applications

Parthiban¹

2019

PIER M

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A novel embeddable miniature near-field reader antenna is designed for Ultra-High Frequency (UHF) Radiofrequency Identification (RFID) applications in the healthcare sector. The antenna spans 45 mm(length) × 20 mm(width) × 1.6 mm (thick) in size. The antenna is tuned for UHF RFID region-2 frequencies, 902 to 928 MHz. The antenna's −15 dB return loss bandwidth is 140 MHz. The antenna has very low far-field gain, and thus false reads of undesired tags are eliminated. The antenna can read both near-fields, and far-field tags as its magnetic field distribution on its surface are uniform with no dead zones. This miniature, light weight antenna is easy to embed and suitable for niche applications like surgical instrument tracking, dental instrument inventory, etc. The antenna's immunity towards proximity metal assets makes it more suitable for healthcare applications.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Embeddable Miniature Uhf Rfid Near-Field Antenna for Healthcare Applications

Parthiban¹

2019

PIER M

Self Cite

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“…Thus, the proposed antenna could also be used in Europe. The radiation pattern has to be as broad as possible, since wider HPBW (in both azimuth and elevation planes) is adequate for easy item scanning [16], and the gain larger than 6 dBi.…”

Section: A Em Requirementsmentioning

confidence: 99%

2-Dipoles Circularly-Polarized Antenna Integrated in Lamp Holder for Fixed RFID Reader

Mazzinghi

Freni

2020

IEEE Access

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The paper presents a solution to integrate a circularly polarized antenna in a tracklight housing that contains both a lamp and a UHF-RFID reader. The antenna is located outside the tracklight housing since the cylindrical lamp holder is metallic and small in terms of wavelength, and there is no space enough inside it. Furthermore, the antenna does not interact with the lamp, so no specific lamp is required. The solution makes use of a standard print-circuit-board fabrication technique combined with a low-cost metal sheet cavity, that can be also drilled for aesthetical reasons. An antenna prototype has been designed for the North America market. The measurements showed a reflection coefficient less than −15dB and a gain greater than 6dBi in the band of interest (902-928 MHz). INDEX TERMS UHF-RFID reader, circular polarization, antenna, lamp.

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“…Moreover, low-cost commercially available tag antennas are linearly polarised and prone to orientation sensitivity problems. Therefore, a reader antenna is required, which can successfully read tags placed in any orientation with uniform electric and magnetic field characteristics [2]. A mender line microstrip based reader antenna with dimensions 140×100×2 mm 3 has been proposed in [3].…”

Section: Introductionmentioning

confidence: 99%

Spider Web shaped Near-field UHF RFID Reader Antenna for Healthcare and IoT Applications

Sharif

Ouyang

Arshad

et al. 2020

2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting

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This paper presents a spider web-shaped antenna for near-field UHF RFID applications. The proposed design consists of concentric decagons, and open-ended microstrip lines etched on the circular substrate. The proposed design features a uniform and fairly strong electric field distribution in the nearfield region. In addition, this antenna exhibits impedance matching ranging from 902 MHz -925 MHz and further poses low gain characteristics, that is required for most of the nearfield application in order to avoid misreading of other tags. Moreover, this design provides symmetric current distribution throughout the structure, thereby solves orientation sensitivity problems of low-cost linearly polarised tag antennas. The measurement results demonstrate tag can successfully read expensive jewellery items, tagged pills and tag placed in different orientations. Therefore, the proposed reader antenna is a good candidate for near field RFID, healthcare and IoT Applications.

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Fixed UHF RFID Reader Antenna Design for Practical Applications: A Guide for Antenna Engineers With Examples

Cited by 20 publications

References 19 publications

Embeddable Miniature Uhf Rfid Near-Field Antenna for Healthcare Applications

Embeddable Miniature Uhf Rfid Near-Field Antenna for Healthcare Applications

2-Dipoles Circularly-Polarized Antenna Integrated in Lamp Holder for Fixed RFID Reader

Spider Web shaped Near-field UHF RFID Reader Antenna for Healthcare and IoT Applications

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