Pattern Reconfigurable UHF RFID Reader Antenna Array

Tajin, Abu Saleh; Dandekar, Kapil R.

doi:10.1109/access.2020.3031296

Cited by 14 publications

(3 citation statements)

References 21 publications

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“…On the other hand, if the user is standing upright and mobile within the facility, a wall-mounted reader would offer better coverage. To overcome unexpected interruption due to blockage, a reconfigurable reader antenna array [3] or an Impinj xArray [29] would be a better choice. Fig.…”

Section: Resultsmentioning

confidence: 99%

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UHF RFID Channel Emulation Testbed for Wireless IoT Systems

et al. 2021

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We propose an ultra high frequency (UHF) radio frequency identification (RFID, MHz in the US) channel emulation testbed that is capable of simultaneously emulating unique wireless channels. The proposed system can potentially be an invaluable tool in the design and validation of RFIDbased Internet of Things (IoT) sensors and systems. Emulation of ray-tracing-based wireless channels enables the evaluation of inherently difficult and complex radio frequency (RF) scenarios, particularly in situations when in-person experimentation is not feasible or desirable (e.g., during a pandemic or in a critical care facility). Furthermore, the emulation testbed is able to generate a large amount of sensor data in a limited time period. Machine learning techniques used in wireless IoT can be greatly enhanced by a large amount of data extracted from the emulation of dynamic and challenging environments. The proposed multi-channel emulation testbed is therefore a valuable solution for experimentation on real hardware and a convenient tool for pre-clinical-trial system validation.INDEX TERMS Internet of Things (IoT), passive sensors, Radio Frequency Identification (RFID), Ultra High Frequency (UHF), Wireless channel emulation,

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Section: Resultsmentioning

confidence: 99%

“…Omnidirectional dipole antennas show poor performance in the vicinity of the human body [2]. Nevertheless, modern passive tags have very low wake-up power that offers the capability of designing on-body tags for biomedical sensing applications [3].…”

Section: Introductionmentioning

confidence: 99%

UHF RFID Channel Emulation Testbed for Wireless IoT Systems

et al. 2021

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“…32 Development of efficient RFID readers arrangement algo-33 rithms should enhance the capacity of the identification sys-34 tems [7]. The pattern reconfigurable readers increases the 35 RFID coverage area, can be used for the on-body imple-36 mentation, and indoor localization applications [8]. Authors 37 in [9] and [10] try to integrate the RFID systems to Internet of 38 Things applications.…”

Section: The Contemporary Rfid Research Focuses On the Following Area...mentioning

confidence: 99%

Time–Domain Electromagnetic Identification Based on Rectangular Grooves

Kadlec

2022

IEEE Access

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Unique identification of goods and products is an integral part of today's automated world. Conventional optical systems cannot be operated in environments of poor visibility. The radio-frequency identification systems require expensive development, production, and installation of passive tags. In this paper, we propose a system that stores the information necessary for the distinction of individual items into a set of grooves with different geometric properties. The individual items are then identified based on observing the response to the electromagnetic wave in the time domain. The proposed identification system benefits from the cooperation of a semi-analytical computational scheme based on the Cagniard-DeHoop Method of Moments and a global optimization algorithm that solves the inverse problem of grooves characterization. The proposed system is validated on several computational examples. Also, the resilience of the proposed system to the influence of the noise added to the observed response is investigated. Finally, the influence of reflected signals on the accuracy of the system is assessed.

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