Analysis of ultra wideband fractal antenna designs and their applications for wireless communication: A survey

Bhatt, Sagar; Mankodi, Parthesh; Desai, Arpan; Patel, Riki

doi:10.1109/icisc.2017.8068736

Cited by 18 publications

(8 citation statements)

References 27 publications

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“…In any contact device, antennas are useful for radiating or receiving electromagnetic waves [126]. Wireless networking has shown different antenna architecture developments, such as meta-material antennas [127,128], fractal antennas [129], UWB and modular antennas [130,131]. Based on these conductive materials, two specific forms of transparent and non-transparent versatile antennas (see Figure 24) were tested by Kantharia et al [132] based on various criteria such as gain, return loss and radiation pattern.…”

Section: Wearable Antenna Based Conductive Materialsmentioning

confidence: 99%

Recent Advances in Wearable Antenna Technologies: A Review

Mahmood¹,

Aris²,

Saeidi³

et al. 2020

PIER B

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Wearable antennas have received a great deal of popularity in recent years owing to their enticing characteristics and opportunities to realize lightweight, compact, low-cost, and versatile wireless communications and environments. These antennas must be conformal, and they must be built using lightweight materials and constructed in a low-profile configuration when mounted on various areas of the human body. These antennas ought to be able to function close to the human body with limited deterioration. These criteria render the layout of wearable antennas demanding, particularly when considering factors such as investigating the usability of textile substrates, high conductive materials during fabrication processes, and the effect of body binding scenarios on the performance of the design. Although there are minor differences in magnitude based on the implementations, several of these problems occur in the body-worn deployment sense. This study addresses the numerous problems and obstacles in the production of wearable antennas, their variety of materials, and the techniques of manufacturing alongside with bending scheme. This is accompanied by a summary of creative features and their respective approaches to address these problems recently raised by work in this area by the science community.

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Section: Wearable Antenna Based Conductive Materialsmentioning

confidence: 99%

Recent Advances in Wearable Antenna Technologies: A Review

Mahmood¹,

Aris²,

Saeidi³

et al. 2020

PIER B

View full text Add to dashboard Cite

show abstract

“…Furthermore, topology optimization with solid isotropic material with penalization or the level set method has been exploited to address the issue [32], but the efficiency of the suggested design is only identified when it is fabricated by special additive manufacturing process, which intensely increases the fabrication burden. Assorted studies have also suggested unique shape modification such as conical, pentagon, or even fractal geometry [33,34], but such modifications refuse to preserve an initial outline of the MSP antenna that has advantages of cheaper and easier fabrication process and diverse applicability, so their efficiency is only meaningful in a specialized example.…”

Section: Introductionmentioning

confidence: 99%

Integration of Dimension Reduction and Uncertainty Quantification in Designing Stretchable Strain Gauge Sensor

et al. 2020

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Interests in strain gauge sensors employing stretchable patch antenna have escalated in the area of structural health monitoring, because the malleable sensor is sensitive to capturing strain variation in any shape of structure. However, owing to the narrow frequency bandwidth of the patch antenna, the operation quality of the strain sensor is not often assured under structural deformation, which creates unpredictable frequency shifts. Geometric properties of the stretchable antenna also severely regulate the performance of the sensor. Especially rugged substrate created by printing procedure and manual fabrication derives multivariate design variables. Such design variables intensify the computational burden and uncertainties that impede reliable analysis of the strain sensor. In this research, therefore, a framework is proposed not only to comprehensively capture the sensor’s geometric design variables, but also to effectively reduce the multivariate dimensions. The geometric uncertainties are characterized based on the measurements from real specimens and a Gaussian copula is used to represent them with the correlations. A dimension reduction process with a clear decision criterion by entropy-based correlation coefficient dwindles uncertainties that inhibit precise system reliability assessment. After handling the uncertainties, an artificial neural network-based surrogate model predicts the system responses, and a probabilistic neural network derives a precise estimation of the variability of complicated system behavior. To elicit better performance of the stretchable antenna-based strain sensor, a shape optimization process is then executed by developing an optimal design of the strain sensor, which can resolve the issue of the frequency shift in the narrow bandwidth. Compared with the conventional rigid antenna-based strain sensors, the proposed design brings flexible shape adjustment that enables the resonance frequency to be maintained in reliable frequency bandwidth and antenna performance to be maximized under deformation. Hence, the efficacy of the proposed design framework that employs uncertainty characterization, dimension reduction, and machine learning-based behavior prediction is epitomized by the stretchable antenna-based strain sensor.

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“…The government provides ISM frequency band (2.4 GHz) which gives the opportunity to researchers to make an antenna for Industrial Scientific and Medical purpose. There are various devices which are operated on ISM band [5][6][7]. In addition to this, ISM band is an unlicensed frequency band that is why more commercial industries desire such antennas which may radiate not only for licensed frequencies but also useful for licensed free frequencies.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Fractal Antenna Using Meander and Minkowski Curves for Wireless Applications

Jindal

Sivia

Bindra³

2019

Wireless Pers Commun

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This paper describes a novel design of Minkowski and Meander curves based hybrid fractal antenna for mobile devices used for communication in delay tolerant networks, wireless sensor networks and mobile adhoc networks. Meander curve improves the impedance bandwidth. Minkowski fractal curve gives its contribution to make antenna multiband. The proposed antenna resonates at five frequencies 1. 98, 5.94, 10.61, 12.73, 14.85 GHz. Prior to fabrication, better performance parameters such as return loss, radiation pattern, gain, current distribution, impedance, VSWR are achieved. The maximum bandwidth 2.83 GHz and gain 9.0 dB at 2.4 GHz are achieved. The proposed antenna can be used for various applications like Bluetooth, Wi-Fi, Wi-Max, Wi-Bro, AWS, GPS, S-DMB, WLAN 802.11b/g and DTH services etc. Simulated and measured results are compared and are found in agreement with each other.

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Analysis of ultra wideband fractal antenna designs and their applications for wireless communication: A survey

Cited by 18 publications

References 27 publications

Recent Advances in Wearable Antenna Technologies: A Review

Recent Advances in Wearable Antenna Technologies: A Review

Integration of Dimension Reduction and Uncertainty Quantification in Designing Stretchable Strain Gauge Sensor

Hybrid Fractal Antenna Using Meander and Minkowski Curves for Wireless Applications

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