Design and comparative analysis of conventional and metamaterial‐based textile antennas for wearable applications

Ali, Usman; Ullah, Sadiq; Shafi, Muhammad; Shah, Shaukat Ali; Shah, Izaz Ali; Flint, James A.

doi:10.1002/jnm.2567

Cited by 41 publications

(29 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The antenna is placed on the three‐layered cylindrical shaped model and the human body dielectric properties are assigned to the cylinder layers. To analyse the SAR values, the antenna is placed on the three‐layered phantom model and performed the SAR analysis 19‐23 . In Figure 18B antenna and AMC structure are bent with an angle of 30°.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Windmill‐shaped antenna with artificial magnetic conductor‐backed structure for wearable medical applications

Nadh

Madhav

Kumar

et al. 2020

Int J Numerical Modelling

View full text Add to dashboard Cite

This article presents the design of low-profile single band antenna on flexible substrate material. The proposed antenna is designed on the polyimide substrate with overall size of 30 mm × 30 mm × 0.2 mm. The designed antenna operates in the frequency range of 5.71 to 5.99 GHz with impedance bandwidth of 4.8% and covers the Industrial Scientific Medical band for medical body area network applications. The antenna is enabled by placing artificial magnetic conductor (AMC) with two by two array elements under the ground plane. The AMC structure acts as an isolation for the ground plane and main radiator to reduce back radiation. Compared with literature in the wearable antenna designs, the proposed antenna is compact in structure with high gain of 8.31 dBi with AMC-backed structure. The specific absorption rate values are observed by placing the antenna on the three-layered human body model and the observed values are 1.26 and 0.72 W/Kg without AMC and with AMC, respectively. The obtained values are in conjunction with ICNIRP standards, that is, 2 W/Kg should be averaged over 10 g of tissue. The proposed antenna can be used for the smart clothing and wearable electronics applications.

show abstract

Section: Resultsmentioning

confidence: 99%

“…To analyse the SAR values, the antenna is placed on the three-layered phantom model and performed the SAR analysis. [19][20][21][22][23] In Figure 18B antenna and AMC structure are bent with an angle of 30 .…”

Section: Antenna Placement On Human Bodymentioning

confidence: 99%

Windmill‐shaped antenna with artificial magnetic conductor‐backed structure for wearable medical applications

Nadh

Madhav

Kumar

et al. 2020

Int J Numerical Modelling

View full text Add to dashboard Cite

show abstract

“…This high-frequency operation will ensure a high-performance data connection. Materials with high dielectric constants are used to miniaturize the size of the antenna [ 257 , 258 ]. Most common elastomeric materials have low dielectric constants.…”

Section: Challenges and Future Prospects Of Flexible Antennasmentioning

confidence: 99%

“…Most common elastomeric materials have low dielectric constants. This low value can be increased by mixing the substrate with high dielectric constant materials such as ceramics like Ba x Sr 1−x TiO 3 [ 258 ] , BaTiO 3 [ 257 ], NdTiO 3 [ 259 ], MgCaTiO 2 [ 259 ], CNTs [ 260 ], and nanoparticles [ 261 ]. Metamaterial based flexible antenna is a relatively new development and has found its way in the commercial market because of its characteristics like lightweight, robustness, and reconfigurability [ 239 , 262 , 263 , 264 , 265 ].…”

Section: Challenges and Future Prospects Of Flexible Antennasmentioning

confidence: 99%

Flexible Antennas: A Review

et al. 2020

View full text Add to dashboard Cite

The field of flexible antennas is witnessing an exponential growth due to the demand for wearable devices, Internet of Things (IoT) framework, point of care devices, personalized medicine platform, 5G technology, wireless sensor networks, and communication devices with a smaller form factor to name a few. The choice of non-rigid antennas is application specific and depends on the type of substrate, materials used, processing techniques, antenna performance, and the surrounding environment. There are numerous design innovations, new materials and material properties, intriguing fabrication methods, and niche applications. This review article focuses on the need for flexible antennas, materials, and processes used for fabricating the antennas, various material properties influencing antenna performance, and specific biomedical applications accompanied by the design considerations. After a comprehensive treatment of the above-mentioned topics, the article will focus on inherent challenges and future prospects of flexible antennas. Finally, an insight into the application of flexible antenna on future wireless solutions is discussed.

show abstract

“…To overcome this issue, one of the most efficient approaches is to use an electromagnetic band gap (EBG) structures. These structures not only reduce the propagation of surface waves but, also improve the performance of antennas in terms of gain, efficiency, and bandwidth [Ali, Ullah, Khan et al (2014); Alam, Misran, Yatim et al (2013); Ali, Ullah, Shafi et al (2019)]. In literature, different metamaterial surfaces encompassed with conventional antennas have been presented for various applications.…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Comparison of Rotated Y-Shaped Antenna Using Different Metamaterial Surfaces for 5G Mobile Devices

Khan¹,

Sehrai²,

Khan³

et al. 2019

Computers, Materials &Amp; Continua

View full text Add to dashboard Cite

In this paper, a rotated Y-shaped antenna is designed and compared in terms of performance using a conventional and EBG ground planes for future Fifth Generation (5G) cellular communication system. The rotated Y-shaped antenna is designed to transmit at 38 GHz which is one of the most prominent candidate bands for future 5G communication systems. In the design of conventional antenna and metamaterial surfaces (mushroom, slotted), Rogers-5880 substrate having relative permittivity, thickness and loss tangent of 2.2, 0.254 mm, and 0.0009 respectively have been used. The conventional rotated Y-shaped antenna offers a satisfactory wider bandwidth (0.87 GHz) at 38.06 GHz frequency band, which gets further improved using the EBG surfaces (mushroom, slotted) as a ground plane by 1.23 GHz and 0.97 GHz respectively. Similarly, the conventional 5G antenna radiates efficiently with an efficiency of 88% and is increased by using the EBG surfaces (slotted, mushroom-like) to 90% and 94% respectively at the desired resonant frequency band. The conventional antenna yields a bore side gain of 6.59 dB which is further enhanced up to 8.91dB and 7.50 dB by using mushroom-like and slotted EBG surfaces respectively as a ground plane. The proposed rotated Y-shaped antenna and EBG surfaces (mushroom, slotted) are analyzed using the Finite Integration Technique (FIT) employed in Computer Simulation Technology (CST) software. The designed antenna is applicable for future 5G applications.

show abstract

Design and comparative analysis of conventional and metamaterial‐based textile antennas for wearable applications

Cited by 41 publications

References 27 publications

Windmill‐shaped antenna with artificial magnetic conductor‐backed structure for wearable medical applications

Windmill‐shaped antenna with artificial magnetic conductor‐backed structure for wearable medical applications

Flexible Antennas: A Review

Design and Performance Comparison of Rotated Y-Shaped Antenna Using Different Metamaterial Surfaces for 5G Mobile Devices

Contact Info

Product

Resources

About