Ultra‐compact 4‐port DR antenna for multi‐input multi‐output standards

Belazzoug, Massinissa; Messaoudene, Idris; Aidel, Salih; Nedil, Mourad; Kishk, Ahmed A.

doi:10.1002/mmce.22145

Cited by 6 publications

(2 citation statements)

References 28 publications

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“…However, in practical cases, the CCL is not zero due to antenna correlation. The CCL due to receiver side correlation can be calculated using Equation ) 27 and plotted in Figure 13. CCL is noted to be less than 0.0328 bits/S/Hz.

CCL = \log_{2} ((), italicdet ((), Ѱ^{normalR}))

Ѱ^{R} = ([], \begin{matrix} Ѱ_{11} & \dots & Ѱ_{1 normalN} \\ ⋮ & ⋱ & ⋮ \\ Ѱ_{normalN 1} & \dots & Ѱ_{NN} \end{matrix})

…”

Section: Resultsmentioning

confidence: 99%

Low mutual coupling six‐port planar antenna for the MIMO applications

Mishra

Chaudhuri

Kshetrimayum

et al. 2020

Int J RF Microw Comput Aided Eng

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A hexagonal shaped six-port multiple-input-multiple-output (MIMO) antenna array comprising of six printed circular monopole antennas with wideband characteristics is presented. Based on the measured data, −10 dB impedance bandwidth of the antenna is found to be from 3.44 GHz to 4.68 GHz. The isolation between the adjacent antenna elements is enhanced by self-cancelation of the induced near field currents by printing a microstrip neutralization line between them. Isolation among antenna elements are greater than 15 dB with an inter-element spacing of 0.076 times the free space wavelength at 3.44 GHz. The maximum gain of the antenna is noted to be 5.1 dBi with an envelope correlation coefficient ≤ 0.4 and channel capacity loss ≤0.0328 bits/S/Hz in its entire operating bandwidth.

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CCL = \log_{2} ((), italicdet ((), Ѱ^{normalR}))

Ѱ^{R} = ([], \begin{matrix} Ѱ_{11} & \dots & Ѱ_{1 normalN} \\ ⋮ & ⋱ & ⋮ \\ Ѱ_{normalN 1} & \dots & Ѱ_{NN} \end{matrix})

…”

Section: Resultsmentioning

confidence: 99%

Low mutual coupling six‐port planar antenna for the MIMO applications

Mishra

Chaudhuri

Kshetrimayum

et al. 2020

Int J RF Microw Comput Aided Eng

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show abstract

“…These PDAs require a multi-port assistant for smarter connectivity, which is why multi-port antennas are introduced to proliferate its data connectivity in a compact wireless integrated portable system [19][20][21]. Thus, multiple-input-multiple-output (MIMO) proves to be the best solution [22][23][24][25][26][27][28]. For portable handheld smarter devices, usually the dual/tri-port antenna systems are feasible [29,30].…”

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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