Higher‐mode textile patch antenna with embroidered vias for on‐body communication

Paraskevopoulos, Anastasios; Fonseca, Duarte de Sousa; Seager, Rob; Whittow, William G.; Vardaxoglou, J.C.; Alexandridis, Antonis A.

doi:10.1049/iet-map.2015.0650

Cited by 55 publications

(42 citation statements)

References 27 publications

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“…In the literature, a variety of solutions to develop Textile Integrated Circuits (TIC) has been proposed. Embroidered techniques [16][17][18][19][20], non-woven solutions [21][22][23], designs based on using several fabrics with different electromagnetic behaviour [24][25][26] or inkjet printed patterns over textile substrates [27][28][29][30] are some of the most cited solutions. More recently, there has been an increasing interest in the development of TIC based on Substrate Integrated Waveguide (SIW) technology [31,32].…”

Section: Introductionmentioning

confidence: 99%

Layer-to-Layer Angle Interlock 3d Woven Bandstop Frequency Selective Surface

Alonso-González¹,

Hoeye²,

Fernández³

et al. 2018

PIER

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A flexible fully textile-integrated bandstop frequency selective surface working at a central frequency of 3.75 GHz and presenting a 0.6 GHz bandwidth has been designed, manufactured and experimentally characterised. The frequency selective surface consists of a multilayered woven fabric whose top layer presents periodic cross-shaped conductive resonators, and due to its symmetries, its performance is largely independent of polarisation and angle of incidence. These properties make the prototype very interesting for shielding applications. The designed frequency selective surface is based on a layer-to-layer angle interlock 3D woven fabric. This technology provides the prototype with flexibility, portability and the possibility of manufacturing it in a large scale production by the use of existing industrial weaving machinery, in contrast to conventional frequency selective surfaces manufactured using rigid substrates. The proposed textile frequency selective surface has been simulated and experimentally validated providing good agreement between the simulations and measurements. The measured maximum attenuation has been found to be higher than 25 dB under normal incidence conditions.

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Section: Introductionmentioning

confidence: 99%

Layer-to-Layer Angle Interlock 3d Woven Bandstop Frequency Selective Surface

Alonso-González¹,

Hoeye²,

Fernández³

et al. 2018

PIER

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“…In situations where soldering/welding cannot be applied due to heat and brittleness, connections can be made using mechanical gripping such as crimping, stapling, and embroidery . However, the connection fabricated by crimping and stapling is also inflexible, which might lead to a break in the connection when the textile is wrinkling.…”

Section: Electronic Textilesmentioning

confidence: 99%

Application Challenges in Fiber and Textile Electronics

et al. 2019

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.201901971. (2 of 25)www.advmat.de www.advancedsciencenews.com energy and then deliver it to power other electronic devices whenever we want. The existing fiber-shaped energy storage devices include the supercapacitor, [15] the lithium (Li)-ion battery, [16] the lithium-sulfur battery, [17] the lithium-air battery, [18] the zinc-air battery, [19] the aluminum-air battery, [20] the sodiumion battery, [21] the zinc-ion battery, [22] and the silver-zinc battery. [23] Among them, the supercapacitor has been reported mostly due to the easy fabrication, and lithium-ion battery has laid the foundation for the development of other fiber-shaped batteries, which are thus discussed mainly in this review. 3) Light-emitting devices have been developed for various applications such as display, illumination, and photo therapy. According to the working mechanisms, there are electroluminescence, [24] mechanoluminescence, [25] photoluminescence, [26] thermoluminescence, [27] sonoluminescence, [28] and chemiluminescence. [29] Among these, fiber-shaped electroluminescent devices have been developed extensively due to their good controllability, driven by direct current (DC) [30] or alternating current (AC) [31] electrical method, which are expounded mainly later. 4) Fibershaped sensors have found great potentials in the field of wearable medical devices for fitness monitoring and medical diagnostics especially as aging populations grow. By virtue of the 1D structure, fiber-shaped sensors can be implanted into the body with little injure or they can detect multiple signals simultaneously after integration into a tiny unit. [32] Fiber-shaped sensors generally work via physical processes on the basis of conducting fiber [33] and optical fiber, [34] and chemical processes based on chemical ligand. [35] Thereinto, fiber optic sensors have already been used in petrochemical, electric power, medical, civil engineering, etc. The detailed discussions about the above three fiber-shaped sensors are presented in the later section.Despite the great progress made in fiber and textile electronics, we have to realize that most of the research results are far from practical applications due to several existing obstacles. The performances of fiber-shaped electronic devices are not good enough to attract investors. For instance, although fiber-shaped solar cells have achieved a record power conversion efficiency (PCE) of 10%, [36] this value falls far below the certified efficiency of 24.2% for planar solar cells. [37] Besides, fiber-shaped electronic devices often decay in performance further as their lengths increase. Apart from low performances, scalable fabrication is another hard nut to crack if fiber-shaped electronic devices are to be commercialized. For one thing, researchers usually can only realize fiber-shaped electronic devices with the lengths from several to hundreds of millimeters at present owing to the absence of appropr...

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“…The research within this type of textile antennas has recently been focused on the enhancement of the BW with different feeding techniques and design topologies. Many solutions have been proposed in the literature: (I) Increasing substrate thickness [37][38][39], (II) designing complex radiator patches [7,40,41], (III) adding slots to the radiator patch [6,37,42], (IV) including parasitic elements [34,40,43], (V) inserting Artificial Magnetic Conductors (AMC) [6,36,43], (VI) using Substrate Integrated Waveguide (SIW) topologies [44][45][46], using Planar Inverted F-Antennas (PIFA) topologies [42,47,48], or (VII) using different feeding techniques [32,42,49].…”

Section: Antenna Designs and Performancementioning

confidence: 99%

“…Note that figures shown in this section have been designed with rectangular radiator patches, nevertheless circular [52,54,56,57], square [6,34,39,58], and other complex shapes [7,36,40,41,43,44,48] have been found in the latest literature.…”

Section: Antenna Designs and Performancementioning

confidence: 99%

Planar Textile Off-Body Communication Antennas: A Survey

2019

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Fully textile smart wearables will be the result of the complete integration and miniaturization of electronics and textile materials. Off-body communications are key for connecting smart wearables with external devices, even for wireless power transfer or energy harvesting. They need to fulfill specific electromagnetic (EM) (impedance bandwidth (BW), gain, efficiency, and front to back radiation (FTBR)) and mechanical (bending, crumpling, compression, washing and ironing) requirements so that the smart wearable device provides the required performance. Therefore, textile and flexible antennas require a proper trade-off between materials, antenna topologies, construction techniques, and EM and mechanical performances. This review shows the latest research works for textile and flexible planar, fully grounded antennas for off-body communications, providing a novel design guide that relates key antenna performance parameters versus topologies, feeding techniques, conductive and dielectric textile materials, as well as the behavior under diverse measurement conditions.

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Higher‐mode textile patch antenna with embroidered vias for on‐body communication

Cited by 55 publications

References 27 publications

Layer-to-Layer Angle Interlock 3d Woven Bandstop Frequency Selective Surface

Layer-to-Layer Angle Interlock 3d Woven Bandstop Frequency Selective Surface

Application Challenges in Fiber and Textile Electronics

Planar Textile Off-Body Communication Antennas: A Survey

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