Ultra-wideband textile antenna with circular polarization for GPS applications and wireless body area networks

Karimiyan-Mohammadabadi, M; Dorostkar, MA; Shokuohi, F.; Shanbeh, Mohsen; Torkan, Azam

doi:10.1177/1528083716631326

Cited by 13 publications

(8 citation statements)

References 21 publications

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“…The integration of body-worn antennas is essential for wireless body area network (WBAN) applications by guaranteeing the wearability (user comfort) and system reliability. 1,2 In order to improve the wearable antenna performance, it is essential to evaluate the dielectric properties of the substrate textile materials and the conductivity of the yarns, and to optimize the manufacturing techniques. 3 Typically, low dielectric constant (" r ) substrate textile materials are preferred to minimize surface waves and improve the antenna bandwidth.…”

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confidence: 99%

Embroidery manufacturing techniques for textile dipole antenna applied to wireless body area network

Gil

Fernández‐García

Tornero

2018

Textile Research Journal

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This paper addresses the design, simulation, manufacturing, and experimental test of textile dipole antennas based on advanced embroidery techniques. The proposed dipoles are intended to operate at the 2.45 GHz industrial scientific and medical radio band for wireless body area network applications. Two medium stitch density embroidery patterns have been studied, satin fill and contour fill, implemented according to the ISO 4915:1991 301 stitch type standard. The impact and viability of these embroidery techniques over the dipole performance in cotton and felt textile substrates are reported. Test results confirm notable antenna parameter results in terms of return loss, radiation pattern, realized gain, and efficiency. In particular, contour pattern has been revealed as the best embroidery manufacturing technique in terms of quality factor and losses, whereas the satin pattern fits the resonance frequency of the antenna with a higher degree of accuracy.

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confidence: 99%

Embroidery manufacturing techniques for textile dipole antenna applied to wireless body area network

Gil

Fernández‐García

Tornero

2018

Textile Research Journal

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“…But the radiation efficiency is just 49%. In [10], a textile antenna with an innovative ground plane is designed for ultra-wideband (UWB) applications. The average gain and radiation efficiency in all bands are 5 dB and 60%, respectively.…”

Section: Introductionmentioning

confidence: 99%

A simple method to simultaneously increase the gain and bandwidth of wearable antennas for application in medical/communications systems

Khajeh-Khalili¹,

Shahriari²,

Haghshenas³

2020

Int. J. Microw. Wireless Technol.

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In this paper, a simple and efficient method to increase the gain and bandwidth of the wearable antennas used in several medical/communications systems is presented. To increase the gain and bandwidth simultaneously, the triple transmission lines (TTLs) method has been used. With this method, the frequency ranges of 1.7–2.5 and 5.4–5.95 GHz are covered with dual-band responses. Also, the simulated maximum gain at 2 and 5.8 GHz is equal to 8.26 and 9.86 dB, respectively. Using the TTLs method, the second frequency band (5.4–5.95 GHz) is achieved. Also, the gain improvement in operating frequencies is more than 4 dB compared to the conventional antenna. The dimensions of the proposed wearable high-gain antenna are 80 × 92 × 2 mm3 or 0.57 × 0.67 × 0.01 λg3 at 2 GHz. Finally, a dual-band sample antenna for use in medical systems was fabricated with a flexible felt substrate and its characteristics were measured. There is a good fit between the measurement and simulation results.

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“…Textiles have also been used in composite polymer fiber fabrics 12 , and copper split-ring resonators have been used as narrow-band solution to reduce the electromagnetic radiation 13 and for passive UHF RFID tags 14 . In addition, textile substrates have been used in wearable antenna applied to wireless body area network [15][16][17][18][19] . However, wearable e-textiles have some limitations that must be addressed.…”

Section: Introductionmentioning

confidence: 99%

Effect of smart textile metamaterials on electromagnetic performance for wireless body area network systems

Moradi

Fernández‐García

Gil

2018

Textile Research Journal

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In this work, the utilization of different textile materials for manufacturing of metamaterial with the aim of controlling the signal propagation on smart textile applications is investigated. The performance of composite structures of embroidered yarn conductor transmission lines loaded with split-ring resonator geometries in felt and cotton substrates are reported. The proposed structure allows propagating or filtering the transmitted signal in the microwave frequency range. The experimental results exhibit a rejection band between 1.3 and 2.6 GHz for felt substrate and between 1.6 and 2.6 GHz for cotton substrate with stop-band levels lower than-20 dB. The presented e-textile structures are designed, electromagnetically simulated and measured. The measured results are in good agreement with 3D electromagnetic simulations. The effect of bending of the e-textiles for realistic scenario is also studied. The experimental results show that by changing the radius of bending from 10 mm to 65 mm, the resonance frequency is shifted up 290 MHz and 144 MHz for cotton and felt substrates, respectively.

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Ultra-wideband textile antenna with circular polarization for GPS applications and wireless body area networks

Cited by 13 publications

References 21 publications

Embroidery manufacturing techniques for textile dipole antenna applied to wireless body area network

Embroidery manufacturing techniques for textile dipole antenna applied to wireless body area network

A simple method to simultaneously increase the gain and bandwidth of wearable antennas for application in medical/communications systems

Effect of smart textile metamaterials on electromagnetic performance for wireless body area network systems

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