A penta-band hybrid fractal MIMO antenna for ISM applications

Rajkumar, Sampath; Srinivasan, Nandagopal; Natesan, Aadya; Selvan, Krishnasamy T.

doi:10.1002/mmce.21185

Cited by 15 publications

(12 citation statements)

References 16 publications

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“…This manuscript has explained about the MIMO multiband planar HFA formed by fusion of Dragon Curve with Inverted Koch geometry. 92 The generation of HFA with geometry and its prototype structure has been displayed in Figure 35, the geometry for the multiple ports along with fabricated structure has been propounded in Figure 36. The reflection coefficient versus frequency plot, three-dimensional (3D) radiation pattern, S 21 for complementary reflecting stub widths and spacing between radiating elements has been described in Figures 37 and 38, from here, it has been contemplated that designed antenna is best suitable for ISM bands.…”

Section: Hybrid Fractal Antenna Using Altered Dragon Curve With Inverted Koch Geometrymentioning

confidence: 99%

Comparative analysis of hybrid fractal antennas: A review

Sharma

Bhatia

2021

Int J RF Microw Comput Aided Eng

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The comprehensive review of hybrid fractal antenna (HFA) has been presented in this article. Distinguished researchers have designed, analyzed, and investigated numerous types of HFA's as per the requirement of the market. Firstly, it gives introduction about the fractal antennas (FAs) along with the need of integration of the fractal geometries then research motivation. The extensive literature survey has been divided into three different parts as, fusion of same type of fractal geometries, amalgamation of two distinct fractal geometries and concoction of three different fractal geometries, further, the comparative analysis among these HFA's has been made on the basis of their size, geometries used for designing, number of resonant frequency bands, gain, bandwidth, radiation efficiency, circular polarization, and their applications. The juxtaposition among different HFA's has also been delineated in tabular form for more limpidity along with the findings of individual research article. The challenges faced by researchers while designing the antennas are also being portrayed in this article. This review may be supportive for the novices to carry out their research on HFA as such type of comparative analysis on HFA's is not existing in the open state of art literature as per best of authors knowledge.

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Section: Hybrid Fractal Antenna Using Altered Dragon Curve With Inverted Koch Geometrymentioning

confidence: 99%

Comparative analysis of hybrid fractal antennas: A review

Sharma

Bhatia

2021

Int J RF Microw Comput Aided Eng

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“…The Outage Probability( ) of the signal in EGCis the integral of PDF with threshold value as the maximum limit [15], [16]. This is presented in equation 4…”

Section: Outage Probability ( )mentioning

confidence: 99%

“…The outage probabilityofMRC, ( ) is given as the integral of pdfas presented in equation (9) as: [15], [16].…”

Section: Outage Probability For Mrcmentioning

confidence: 99%

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Untitled

2020

IJCSIT

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Diversity combining is a technique in wireless network that uses multiple antenna system to improve the quality of radio signal. Mobile radio system suffers multipath propagation due to signal obstruction in the channel. A new hybridized diversity combining scheme consisting of Equal Gain Combining (EGC) and Maximal Ratio Combining (MRC) was proposed in this paper. Theperformance of the hybrid model was evaluated using Outage Probability (Pout) and Processing time (Pt) at different Signal-to-Noise Ratio (SNR) and Signal Paths (L=2,3) for 4-QAM and 8-QAM Modulation Schemes. A mathematical expression for the hybrid EGC-MRC was realized using the Probability Density Function (PDF) of the Nakagami fading channel. MATLAB R2015b software was used for the model simulation. The result shows that hybrid EGC-MRC outperforms the standalone EGC and MRC schemes by having lower Pout and Pt values. Hence, hybrid EGC-MRC exhibits enhanced potentials to mitigate multipath propagation at reduced system complexity.

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“…Another challenge is to fit appropriate antenna and generate multiple resonating spectrums [33][34][35]. Thus, the phenomenon of self-similar antenna structures commonly known as Fractals, is introduced and considered as the optimum solution, as it provides multi-resonances with wide bandwidth [36][37][38][39]. The self-similar structures are complex on design perspective, as the conducting surface has intricate geometry.…”

Section: Introductionmentioning

confidence: 99%

Characteristics Mode Analysis: A Review of Its Concepts, Recent Trends, State-of-the-Art Developments and Its Interpretation With a Fractal Uwb Mimo Antenna

Mohanty¹,

Behera²

2021

PIER B

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In this article, we present a compact and efficient diametrically-fed dual port fractal UWB MIMO antenna for portable handheld wireless devices. The electromagnetic behaviour on conducting body is analyzed through classical approach based characteristics mode analysis (CMA). Their intrinsic characteristics are explored on the basis of (a) modal surface current distributions, (b) narrow/broad bandwidth capability, and (c) radiation potentials. Concurrent analysis is persuaded on a diametricallyfed dual-port fed fractal conducting surface, which provides interesting facets on the combinatory effect of electromagnetic performance and physical behaviour on metallic radiator, metallic ground planes (unconnected/connected) and combination of two aforementioned metallic compact geometries. Theoretical insights are investigated for essential/non-essential modes existing in proposed geometry. The investigation through CMA also gives plethoric information on the feed location of antenna on modal surface currents and similar trends to capture its radiation potentials on the current nulls existing in the physical body. A broad classification of modes is explained, covering the CMA modal dynamics such as (a) characteristics angle (CA), (b) eigenvalues (EV), and (c) modal significance (MS). These additive parameters in general reflect the resemblance of Q-factor ≈ B.W. for narrowband/wideband traits, electrically/magnetically coupled energy behaviour, and radiative potential for far-field propagation. Thus, in a nutshell , it can be concluded that 'CMA provides physically intuitive guidance for the analysis and designing of antenna structures'. To support the findings highlighted in this particular study, a concise review about the theory of characteristic modes and the practical examples that use such concepts are taken into consideration.

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A penta-band hybrid fractal MIMO antenna for ISM applications

Cited by 15 publications

References 16 publications

Comparative analysis of hybrid fractal antennas: A review

Comparative analysis of hybrid fractal antennas: A review

Untitled

Characteristics Mode Analysis: A Review of Its Concepts, Recent Trends, State-of-the-Art Developments and Its Interpretation With a Fractal Uwb Mimo Antenna

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