UWB Wearable Antenna With a Full Ground Plane Based on PDMS-Embedded Conductive Fabric

Simorangkir, Roy B. V. B.; Kiourti, Asimina; Esselle, Karu P.

doi:10.1109/lawp.2018.2797251

Cited by 137 publications

(81 citation statements)

References 13 publications

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“…Anagnostou et al [10] Organic paper 46 × 30 0.42 1.2 WLAN Choi et al [11] Liquid crystal polymer 30 × 30 0.07 4.98 Wi-Fi Porter et al [14] Rogers Ultralam 3850 24 × 32 3.0 2.7 Microwave Imaging Jung et al [15] Ultrathin Parylene C film 26.48 × 18.20 3.4 3.8 WLAN Kaur et al [19] Teflon 85 × 90 0.53 6.81 WLAN, Wi-Fi Tighezza et al [16] Polyethylene terephthalate 60 × 75 6.0 5 5G Simorangkir et al [20] Polydi…”

Section: Gain (Dbi) Applicationsmentioning

confidence: 99%

Nickel Particle-Based Compact Flexible Antenna for Modern Communication Systems

et al. 2019

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A flexible antenna is a significant part of the new generation of wireless communication systems. Conventional antennas are typically fabricated on available FR-4 and RT/Duroid dielectric materials, where the dielectric constant cannot be selected arbitrarily and the degrees of freedom in designing the antenna are limited, whereas our flexible substrate offers moderate dielectric values by changing the concentration of the raw materials. Synthesised nickel particle-based flexible nickel aluminate (NiAl2O4) is utilized as a substrate material to make an effective antenna for microwave applications. The nickel aluminate substrate was made with 42% concentration of nickel, and has a dielectric constant of 4.979 and a thickness of 1 mm. The fabricated flexible antenna shows measured bandwidth from 6.50–8.85 GHz. On the other hand, the maximum measured gain and efficiency was 4.75 dBi and 91%, respectively. Finally, that antenna has directional radiation patterns and the presented antenna has a novelty where the nickel aluminate substrate was used for the first time. Thus the compactness of the antenna and its performance with a flexible nature makes it a worthy one to be used in the C-band application.

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Section: Gain (Dbi) Applicationsmentioning

confidence: 99%

Nickel Particle-Based Compact Flexible Antenna for Modern Communication Systems

et al. 2019

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“…Allowing the user to benefit from the performance of the system without restricting the user activity and causing any behavior modification [19][20][21]. Different options for dielectric materials arise for building flexible wearable antennas, such as several types of papers, Kapton, polyethylene terephthalate (PET) [22], polydimethylsiloxane (PDMS) [23], liquid-crystal polymer (LCP) [24] and textiles [25]. Among them, fabrics withstand bending, twisting and stretching.…”

Section: Introductionmentioning

confidence: 99%

Dielectric Characterization of Non-Conductive Fabrics for Temperature Sensing through Resonating Antenna Structures

Ibanez‐Labiano

Alomainy

2020

Materials

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Seamless integration of electronics within clothing is key for further development of efficient and convenient wearable technologies. Therefore, the characterization of textile and fabric materials under environmental changes and other parametric variations is an important requirement. To our knowledge, this paper presents for the first time the evaluation of dielectric characterization over temperature for non-conductive textiles using resonating structures. The paper describes the effects of temperature variations on the dielectric properties of non-conductive fabrics and how this can be derived from the performance effects of a simple microstrip patch antenna. Organic cotton was chosen as the main substrate for this research due to its broad presence in daily clothing. A dedicated measurement setup is developed to allow reliable and repeatable measurements, isolating the textile samples from external factors. This work shows an approximately linear relation between temperature and textile’s dielectric constant, giving to fabric-based antennas temperature sensing properties with capability up to 1 degree Celsius at millimeter-wave frequencies.

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“…The kapton used in Reference is a typical material to fabricate the substrate for its flexibility and ultra‐thinness, while it suffers from a complex fabrication process and high costs. By contrast, PDMS, introduced in References , is a type of material that has advantages such as low cost, high flexibility, and easy realization, which means that it is an appropriate choice of substrate to design the wearable antenna. In Reference , a compact and flexible circularly polarized (CP) wearable antenna implemented by employing PDMS and silver nanowires shows better performances compared to a conventional CP patch antenna of the same physical size.…”

Section: Introductionmentioning

confidence: 99%

Flexible EBG‐backed PIFA based on conductive textile and PDMS for wearable applications

Gao

Wang

Zhang

et al. 2019

Micro & Optical Tech Letters

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A wearable planar inverted‐F antenna (PIFA) fed by the coplanar waveguide (CPW) and backed with an optimized electromagnetic bandgap (EBG) structure is presented. The antenna is made of conductive textile and polydimethylsiloxane (PDMS), which is a conformal and robust solution to wearable applications. The EBG unit cell is miniaturized according to the equivalent circuit model, and the cross‐polarization is suppressed due to its approximate 180° reflection phase in the orthogonal direction. The measured impedance bandwidth ranges from 2.30 to 2.65 GHz, which covers the 2.4 GHz Industrial Scientific Medical (ISM) band. The antenna keeps a high gain and efficiency above 70% under different conditions including being flat, bent, and close to the human body. The maximum SAR value is limited to 0.612 and 0.330 W/kg under 1 and 10 g standard, respectively. Therefore, the antenna is a promising candidate for wearable applications in various domains.

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UWB Wearable Antenna With a Full Ground Plane Based on PDMS-Embedded Conductive Fabric

Cited by 137 publications

References 13 publications

Nickel Particle-Based Compact Flexible Antenna for Modern Communication Systems

Nickel Particle-Based Compact Flexible Antenna for Modern Communication Systems

Dielectric Characterization of Non-Conductive Fabrics for Temperature Sensing through Resonating Antenna Structures

Flexible EBG‐backed PIFA based on conductive textile and PDMS for wearable applications

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