A Flexible Miniature Antenna for Body-Worn Devices: Design and Transmission Performance

Al‐Sehemi, Abdullah G.; Al‐Ghamdi, Ahmed A.; Dishovsky, Nikolay; Atanasov, Nikolay; Atanasova, Gabriela

doi:10.3390/mi14030514

Cited by 5 publications

(3 citation statements)

References 35 publications

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“…Figure 14 is the compact flexible antenna was specifically designed for body-worn devices. To ensure the comfort of use and antenna flexibility when the antenna is in contact with the human body, a substrate made of natural rubber filled with TiO 2 was developed [93]. The antenna was miniaturized using the quadratic Koch curve.…”

Section: Polymer Based Antennamentioning

confidence: 99%

“…Compared with other flexible antennas, the proposed antenna demonstrates smaller dimensions, better radiation efficiency, and higher gain when placed on a human body model. contact with the human body, a substrate made of natural rubber filled with TiO2 was developed [93]. The antenna was miniaturized using the quadratic Koch curve.…”

Section: Polymer Based 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: Polymer Based Antennamentioning

confidence: 99%

Section: Polymer Based 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

show abstract

“…It can be seen in table 2 that most of the substrates are not stretchable in nature, except rubber [36]. However, a CPW monopole antenna designed on the rubber substrate offered merely 650 MHz of bandwidth.…”

Section: Comparison With the Relevant Literaturementioning

confidence: 99%

Silicon elastomer as flexible substrate: dielectric characterization and applications for wearable antenna

Iftikhar,

Naseer,

Yildiz

et al. 2023

Flex. Print. Electron.

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In this paper, low-cost mold silicone and silicone elastomers are investigated as substrates for the realization of flexible antennas. A methodical dielectric characterization is carried out, followed by a detailed explanation of the manufacturing process of the silicone elastomers. The prepared silicone elastomer substrates are also subjected to mechanical tests to ensure flexibility and robustness. The mechanical tests corroborated the utilization of the prepared silicone elastomers for the flexible antennas. Silicone has limited adhesion to metal, so when producing a silicone substrate, a 0.5 mm deep cavity is created with a negative impression of the intended metal component. Consequently, the metal layer is embedded within the silicon substrate, aligning the top surface of the metal flush with the silicone substrate edges. The radio frequency (RF) structure incorporates ridges within the silicone substrate to form a gap, effectively securing the metal on the surface of the silicone. Finally, to prevent the metal from falling from the silicone substrate, Kapton tape is laminated on the substrate. The wrapping of the Kapton tape additionally provides protection from moisture since the silicone elastomer substrate is prone to moisture absorption. The proposed technique is experimentally verified by designing and prototyping a coplanar patch antenna using copper and conductive woven fiber on the silicone substrate. The simulation analysis and experimentation results authenticated the effectiveness of the proposed technique to design a flexible antenna on the silicone elastomer substrates. It is also concluded that the conductive woven fiber-based prototype offers higher flexibility as compared to the copper-based prototype. It is also clinched that there exists a trade-off in flexibility and performance characteristics due to the conductivity and texture difference between the copper and conductive woven fiber.

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Design of a Compact Dual-Polarized Wearable Antenna With Spatial Diversity Reception for Into-Body Communications

Wang,

Zhu,

Feng

et al. 2023

IEEE Trans. Antennas Propagat.

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A Flexible Miniature Antenna for Body-Worn Devices: Design and Transmission Performance

Cited by 5 publications

References 35 publications

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

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

Silicon elastomer as flexible substrate: dielectric characterization and applications for wearable antenna

Design of a Compact Dual-Polarized Wearable Antenna With Spatial Diversity Reception for Into-Body Communications

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