Compact and ultra-wideband CPW-fed square slot antenna for wearable applications

Varkiani, Seyed Mohsen Hosseini; Afsahi, Majid

doi:10.1016/j.aeue.2019.04.024

Cited by 29 publications

(10 citation statements)

References 20 publications

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“…The proposed antenna was a robust choice for centric applications in wireless body technologies due to the compatibility shown between the ON and OFF body measurements. In [84], a compact and UWB CPW-fed square slot antenna was featured for wearable applications by Varkiani et al The antenna sized (23.5 × 22) mm 2 is fed by a semi-polygon feed line surrounded by grounded aircraft and fabricated on cotton fabric as substrate material, which is realized 13.1 GHz bandwidth from 3.2 -16.3 GHz concerning the fractional bandwidth (FBW) of 135% (see figure 44). The proposed compact antenna was tested in OFF-body and ON-body conditions using two additional substrates with different dielectric constant identified by FR4 and nonwoven.…”

Section: Uwb On-body Antenna Configurationmentioning

confidence: 99%

“…Section III concentrates on (ON-Body) communication antenna analysis and applications [70]- [86]. On the other hand, the paper classified and considered the operating frequency bands standard by 802.15 family and Federal Communications Commission (FCC) [32] UWB for OFF-Body based monopole [33], [34], [36], [40], [42]- [44], [47]- [49], [52], [54], [55], ground plane [57], [58], [63], [68] and ON-Body antennas [71], [74]- [77], [79], [81], [84]- [86]. Finally, the conclusion of the whole article is presented in section IV.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

ON-OFF Body Ultra-Wideband (UWB) Antenna for Wireless Body Area Networks (WBAN): A Review

et al. 2020

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Ultra-wideband (UWB) technology can offer broad capacity, short-range communications at a relatively low level of energy usage, which is very desirable for wireless body area networks (WBANs). The involvement of the human body in such a device poses immense difficulties for both the architecture of the wearable antenna and the broadcast model. Initially, the bonding between the wearable antenna and the human body should also be acknowledged in the early stages of the design, so that both the potentially degrading output of the antenna as a consequence of the body and the possibility of exposure for the body may be handled. Next, the transmission path in WBAN is affected by the constant activity of the human body, leading to the time-varying dispersion of electromagnetic waves. Few researchers were interested in this field, and some substantial progress has recently been considered. On the other hand, this paper covered both wearable and Non-wearable UWB antenna designs and applications with respect to their substrate characteristics. Finally, this review prospectively exposes the upgraded developments of (ON-OFF) body antennas in the area of wearable and Non-wearable UWB and their implementations in the WBAN device and aims to evaluate the latest design features that inspire the performance of the antennas.INDEX TERMS ON-body antenna, OFF-body antenna, wearable antenna, ultra-wideband (UWB) antenna, wireless body area network (WBAN).

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Section: Uwb On-body Antenna Configurationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

ON-OFF Body Ultra-Wideband (UWB) Antenna for Wireless Body Area Networks (WBAN): A Review

et al. 2020

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“…To identify these parameters, the azimuth angle of arrival and the elevation angle of arrival is used with their proposed algorithm and their yielded estimation of the parameters to accurately estimate the bad channel conditions such as low signal to noise ratio and harsh multi-path channels. By reducing the computational complexity of the algorithm, the algorithm can be used for applications that do not require accurate estimations for bad channel conditions [28,29,30].…”

Section: Review Of Related Literaturementioning

confidence: 99%

Analysis of the Various Properties of an Antenna Array’s Radiation

2020

IJETER

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As technological innovations improve over time, antennas have become an inherent piece of our everyday lives and it is essential for individuals to understand how data is moved through these devices. There are different methods of deciding how energy can be transmitted by antennas in an efficient manner, and not all things are seen on the antennas themselves, as there are a few issues that may emerge from the transmission cables that they are associated with too. A common method of deciding how an antenna can transmit signals of energy is through the analysis of its radiation pattern. The radiation pattern of an antenna is able to determine how energy is radiated or data is propagated by a particular antenna. This analysis will focus on understanding the graphs of radiation patterns, beam scanning, patterns of arrays, and other types of graphs. Understanding all of these concepts are important in order to have the ability to effectively utilize antennas such as being able to maximize the amount of distance possible when correctly positioned and also having the ability to boost signals from other devices.

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“…To enhance the bandwidth of the antenna, numerous modifications in geometry have been reported, such as the use of Ashoka chakra shaped as radiating part and triangular truncated corners in the ground plane [7], perforated in the ground radiator with the corner cut top rectangular patch [8], fractal structures [9], and slots of different shapes [10], T-shaped [11], L-shaped [12], crescent shape [13], staircase-shaped slits [14], and flower-shaped patch [15]. These methods are useful to the design of a wideband antenna for wearable applications.…”

Section: Introductionmentioning

confidence: 99%

Performance Investigation of Flexible UWB Antenna near Human Body for Wearable Appliances

Sharma¹,

Yadav²,

Singhal³

et al. 2022

PIER B

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A very economical and compact size wearable antenna operating over Ultra-Wide Band (UWB) spectrum is investigated in the proposed work. The antenna is modelled on a thin FR-4 (0.2 mm) material that makes it flexible and well-suited for wearable appliances. The radiating patch structure is the combination of one square and two elliptical patches rotated at 45 • and fed with a Coplanar Waveguide (CPW) to achieve a wide impedance bandwidth. The complete radiating structure looks like a flower shape, and it has a partial ground to support the radiation from the antenna over the complete UWB. The flexibility of the proposed structure is investigated by bending it along xz and yz planes using cylindrical shape foam. The peak Specific Absorption Rate (SAR) is demonstrated for 1 g and 10 g of tissues at different chosen frequencies like 3.7, 8.4, and 11.2 GHz using a three-layer phantom model. The presented antenna performance analysis and compact size confirm that it is a good candidate for wearable applications.

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Compact and ultra-wideband CPW-fed square slot antenna for wearable applications

Cited by 29 publications

References 20 publications

ON-OFF Body Ultra-Wideband (UWB) Antenna for Wireless Body Area Networks (WBAN): A Review

ON-OFF Body Ultra-Wideband (UWB) Antenna for Wireless Body Area Networks (WBAN): A Review

Analysis of the Various Properties of an Antenna Array’s Radiation

Performance Investigation of Flexible UWB Antenna near Human Body for Wearable Appliances

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