Compact high gain UWB antenna using fractal geometry and UWB‐AMC

Dwivedi, Ravi Prakash; Kommuri, Usha Kiran

doi:10.1002/mop.31602

Cited by 40 publications

(24 citation statements)

References 11 publications

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“…The comparison of simulated (solid line) and measured (dashed line) far‐field radiation patterns at both resonant frequencies is shown in Figure . These patterns are arbitrary bidirectional and stable . Figure shows the comparison of simulated and measured gains for proposed GCHFA.…”

Section: Resultsmentioning

confidence: 98%

Giuseppe Peano and Cantor set fractals based miniaturized hybrid fractal antenna for biomedical applications using artificial neural network and firefly algorithm

Kaur

Sivia

2019

Int J RF Microw Comput Aided Eng

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In this research paper, Giuseppe Peano and Cantor set fractals based miniaturized hybrid fractal antenna (GCHFA) is proposed that operates for biomedical applications. The proposed GCHFA is designed by merging Giuseppe Peano and Cantor set fractals that help in achieving better performance characteristics as well as miniaturization. Firefly algorithm (FA) has been employed to optimize the feed position of the designed antenna. The substrate material selected for the proposed GCHFA is low-cost, commercially available FR4 epoxy whose thickness is 1.6 mm and relative permittivity is 4.4. A data set of 65 GCHFAs with different geometrical parameters is generated for the realization of two different bioinspired approaches.For the performance evaluation of fabricated prototype, vector network analyzer is used. The experimentally observed resonant frequencies are 2.4400 and 5.8115 GHz, and at these resonant frequencies, S (1,1) < −10 dB. The designed antenna is suitable for Industrial, Scientific, and Medical bands of biomedical applications. Moreover, the behavior of the proposed GCHFA is nearly omnidirectional. A comparative study of three different artificial neural networks (ANNs) is also done to evaluate the most suitable ANN type for the analysis of proposed GCHFA. The optimized, simulated, and experimental results depict that they are closely matched. K E Y W O R D S artificial neural network, biomedical applications, feed position, firefly algorithm, hybrid fractal antenna, resonant frequency

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Section: Resultsmentioning

confidence: 98%

Giuseppe Peano and Cantor set fractals based miniaturized hybrid fractal antenna for biomedical applications using artificial neural network and firefly algorithm

Kaur

Sivia

2019

Int J RF Microw Comput Aided Eng

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“…The notch band frequencies such as 2.4, 3.5, and 5.5 GHz depict less than −1 dB gain performance which indicates its applicability to reject the interference of WLAN and Wi‐MAX systems. The radiation performance of the antenna at the operating bands can be depicted by the radiation patterns . The measured radiation patterns are shown in Figure A‐H.…”

Section: Resultsmentioning

confidence: 99%

Compact UWB flexible elliptical CPW‐fed antenna with triple notch bands for wireless communications

Lakrit

Das²,

Ghosh

et al. 2020

Int J RF Microw Comput Aided Eng

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A coplanar waveguide (CPW)‐fed flexible elliptical antenna with triple band notched characteristics is presented in this article. The designed antenna consists of an elliptical patch and slots incorporated CPW feed line to cover the bandwidth requirements for ultra‐wideband (UWB) applications. The designed UWB antenna has a fractional bandwidth of about 166.19% (1.20‐13 GHz) with a center frequency of 7.1 GHz in simulation and about 170.10% (1.05‐13 GHz) with a center frequency of 7.025 GHz in measurement. The overall dimension of the proposed flexible antenna is 45 × 35 × 0.6 mm3. The triple notched bands are realized by designing with circular shaped split‐ring‐resonators (SRRs) and defected ground structure (DGS). According to the measurement, first notched band (2.0−2.70 GHz) is generated for rejecting 2.4 GHz WLAN by introducing a single circular ST‐SRR on the radiating patch. The second notch (3.45‐3.80 GHz) is obtained by embedding another circular ST‐SRR on the patch to mitigate the interference of 3.5 GHz Wi‐MAX system. Finally, due to presence of DGS, third notch (5.15‐6.20 GHz) is produced which suppresses the interference from 5.5 GHz Wi‐MAX and 5.2/5.8 GHz WLAN systems. The proposed antenna offers excellent performance in different flexible conditions that confirm its applicability on curved surfaces for UWB systems.

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“…Many other polymer-based flexible UWB antennas were reported in the literature. These include liquid crystal polymer [ 158 , 159 , 160 , 161 ], polydimethylsiloxane (PDMS) [ 162 , 163 , 164 ], graphene-assembled film [ 165 ], artificial magnetic conductor (AMC) [ 166 , 167 , 168 , 169 , 170 ], PET [ 171 , 172 , 173 ], paper [ 174 ], and polyamide [ 175 , 176 , 177 ].…”

Section: Applications Of Flexible Antennas Under Different Frequenmentioning

confidence: 99%

Flexible Antennas: A Review

et al. 2020

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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.

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Compact high gain UWB antenna using fractal geometry and UWB‐AMC

Cited by 40 publications

References 11 publications

Giuseppe Peano and Cantor set fractals based miniaturized hybrid fractal antenna for biomedical applications using artificial neural network and firefly algorithm

Giuseppe Peano and Cantor set fractals based miniaturized hybrid fractal antenna for biomedical applications using artificial neural network and firefly algorithm

Compact UWB flexible elliptical CPW‐fed antenna with triple notch bands for wireless communications

Flexible Antennas: A Review

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