Human-body effects on the design of card-type UHF RFID tag antennas

Lin, Ming-Hong; Chiu, Chien‐Wen

doi:10.1109/aps.2011.5996760

Cited by 10 publications

(3 citation statements)

References 12 publications

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Section: Wearable Antennamentioning

confidence: 99%

“…The design considerations for a UHF band card-type tag, which was enclosed in a packet and placed near the chest for applications on our university campus, were discussed in [64]. The FEKO simulation tool was used to design four different types of tag antennas that are highly insensitive to platforms [64]. Additionally, they measured the input impedances of the tag antennas using a test fixture and a two-port network analyzer to validate the simulation results and confirm the reliability of the simulation tool.…”

Section: Wearable Antennamentioning

confidence: 99%

See 1 more Smart Citation

Compact Flexible Planar Antennas for Biomedical Applications: Insight into Materials and Systems Design

Venkatachalam,

Jagadeesan,

Ismail

et al. 2023

Bioengineering

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Planar antennas have become an integral component in modern biomedical instruments owing to their compact structure, cost effectiveness, and light weight. These antennas are crucial in realizing medical systems such as body area networks, remote health monitoring, and microwave imaging systems. Antennas intended for the above applications should be conformal and fabricated using lightweight materials that are suitable for wear on the human body. Wearable antennas are intended to be placed on the human body to examine its health conditions. Hence, the performance of the antenna, such as its radiation characteristics across the operating frequency bands, should not be affected by human body proximity. This is achieved by selecting appropriate conformal materials whose characteristics remain stable under all environmental conditions. This paper aims to highlight the effects of human body proximity on wearable antenna performance. Additionally, this paper reviews the various types of flexible antennas proposed for biomedical applications. It describes the challenges in designing wearable antennas, the selection of a flexible material that is suitable for fabricating wearable antennas, and the relevant methods of fabrication. This paper also highlights the future directions in this rapidly growing field. Flexible antennas are the keystone for implementing next-generation wireless communication devices for health monitoring and health safety applications.

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Section: Wearable Antennamentioning

confidence: 99%

Section: Wearable Antennamentioning

confidence: 99%

Compact Flexible Planar Antennas for Biomedical Applications: Insight into Materials and Systems Design

Venkatachalam,

Jagadeesan,

Ismail

et al. 2023

Bioengineering

View full text Add to dashboard Cite

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“…An on-body antenna typically consists of aperture antennas, wherein an arbitrary shaped slot is etched into a metal patch [18], [19], planar inverted-F antennas [13], [15], [20], [21], or patch antennas. The antenna-body coupling effect can be reduced by using appropriate insulating substrates [22], or suitably enlarging antennas ground plane [21], [23], allowing an effective shielding between the antenna and the human body.…”

Section: Introductionmentioning

confidence: 99%

Design of On-Body Epidermal Antenna on AMC Substrate for UHF RFID in Healthcare

Casula,

Lestini,

Chietera

et al. 2024

IEEE Trans. Antennas Propagat.

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This paper presents a compact AMC structure used as a shielding element for a generic wearable RFID tag at UHF frequencies for on-body applications, with an overall footprint limited to an area of only 0.03 λ0 2 (41.4 mm  82.8 mm). Thanks to the isolation provided by the AMC planar structure, the tag antenna gain and reading range are increased of about one order of magnitude in comparison with the case of a conventional tag attached to the human body. The designed antenna is platform tolerant, with a very good robustness and isolation with respect to the human body, exhibiting a high reliability. The AMC structure is implemented on a thin, flexible and biocompatible high permittivity silicon-doped dielectric substrate, with apertures both in the substrate and in the ground plane to allow skin transpiration. Therefore, the presented device can be effectively used also as an epidermal antenna, allowing the "onskin" sampling of the most typical health parameters. The presented configuration has been designed using CST Studio Suite. A prototype has been fabricated and fully characterized, and measured results are in very good agreement with simulations.

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