Dual‐port MIMO dielectric resonator antenna for WLAN applications

Singhwal, Sumer Singh; Kanaujia, Binod Kumar; Singh, Ajit; Kishor, Jugul

doi:10.1002/mmce.22108

Cited by 15 publications

(9 citation statements)

References 29 publications

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“…Thanks to the multi‐mode nature of the DP resonator, the bandwidth of the proposed antenna is wider than those of the antenna in References 19,23‐26. Although the antennas in References 21 and22 have a wider bandwidth, their profile is almost seven times that of the proposed antenna. Besides, benefiting from the differential‐fed scheme, the isolation of the proposed antenna is relatively high.…”

Section: Experiments Results and Discussionmentioning

confidence: 90%

“…The dual-polarized antenna can not only increase the communication channel capacity, but also effectively decrease the mutual interference between the two channels and improve the communication efficiency, [21][22][23][24] which has been widely applied in recent years. For the dual-polarized antenna, achieving high isolation between the two input ports is absolutely critical.…”

Section: Introductionmentioning

confidence: 99%

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A differential‐fed dual‐polarized antenna with gain enhancement using hollow dielectric patch resonator

Wang

Tang

Yang

et al. 2021

Int J RF Microw Comput Aided Eng

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A differential-fed dual-polarized dielectric patch (DP) antenna with high gain, wide bandwidth, and high isolation is investigated in this article. Based on the analysis of the anisotropic property of the DP antenna, further exploration of gain enhancement is carried out. The introduction of the square air hole in the substrate to obtain a hollow DP resonator is a crucial technique. It not only increases the electromagnetic radiation from the sidewalls of the DP resonator to further improve the gain to 8.9 dBi, but also shifts the dominant TM 101 mode upward to get close to the higher-order TM 121 mode to achieve bandwidth expansion of 19.4%. By using the differential-fed scheme to excite the TM 101 mode, TM 121 mode and their degenerate modes, dual-polarization operation and high isolation level can be obtained simultaneously. K E Y W O R D Sdielectric patch (DP) resonator, differential-fed, dual-polarized antenna, high gain, low-profile, wideband

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Section: Experiments Results and Discussionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

A differential‐fed dual‐polarized antenna with gain enhancement using hollow dielectric patch resonator

Wang

Tang

Yang

et al. 2021

Int J RF Microw Comput Aided Eng

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“…MIMO performance has been evaluated by calculating

italicDG = 10 \sqrt{1 - {ECC}^{2}}

21‐23 and ECC using Equation ).

italicECC = \frac{{(||, \iint_{4 π} ([],, \overset{F_{1}}{true} ((),, θ, ϕ) * \overset{F_{2}}{true} false(θ, ϕ false)) d normalΩ)}^{2}}{\iint_{4 π} {|\overset{false\to}{F_{1}} (θ, ϕ)|}^{2} d normalΩ \iint_{4 π} {|\overset{false\to}{F_{2}} (θ, ϕ)|}^{2} d normalΩ}

where

\overset{F_{i}}{true} ((),, θ, ϕ)

is three dimensional field radiation pattern of the MIMO antenna when port‐ i is excited. Ω is solid angle and * represents the Hermitian product operator.…”

Section: Results and Validationmentioning

confidence: 99%

Dual‐band circularly polarized MIMO DRA for sub‐6 GHz applications

Singhwal

Kanaujia

Singh

et al. 2020

Int J RF Microw Comput Aided Eng

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In this article, a dual‐band circularly polarized multiple‐input‐multiple‐output (MIMO) dielectric resonator antenna (DRA) is proposed for 3.5 and 5.5 GHz bands, both being located under 6 GHz. Known as sub‐6 (or as mid‐band), they provide good coverage and capacity in the newly targeted fifth‐generation (5G) systems. The proposed structure consists of two ring DRAs (RDRAs) etched on a 0.8 mm thick RT Duroid substrate. Measured impedance bandwidths in broadside direction are 3.1‐3.75 GHz (19%) and 5.3‐5.6 GHz (9.4%) and circular polarization (CP) bandwidths are 3.425‐3.6 GHz (5%) and 5.45‐5.55 GHz (2%), respectively. CP is achieved by exciting HE modes using two probes placed orthogonaly to each other, that is, at an azimuthal angular distance of 90∘. Varying the lengths of the probe allows achieving the necessary time‐phase quadrature between modes. Comparison between recent multiband circularly polarized MIMO DRAs and proposed prototype has revealed that CP bandwidth in both bands is one of the highlighting advantages of the present configuration.

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“…High speed wireless data transfer became possible because of advent of multiple input multiple output (MIMO) technology. Different configurations of MIMO DRA are presented in recent times [10][11][12][13][14][15][16]. In [10] authors reviewed recent MIMO DRAs with various perspective and concluded that multi-port MIMO DRA are tough to design owing to problems associated with them.…”

Section: Introductionmentioning

confidence: 99%

“…In [10] authors reviewed recent MIMO DRAs with various perspective and concluded that multi-port MIMO DRA are tough to design owing to problems associated with them. In [12][13][14][15][16], dual-port, dual-band, four-port and multi-band MIMO DRA for various wireless applications such as 5G, sub-6 GHz, X-band applications have been proposed. In MIMO DRAs as the number of ports increased, complexity and problem of maintaining isolation between feeding ports, also become prominent.…”

Section: Introductionmentioning

confidence: 99%

Novel Flower-Shaped Multiple Input Multiple Output Dielectric Resonator Antenna

Singhwal

2022

Acta Marisiensis. Seria Technologica

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In modern communication systems, dielectric resonator antennas (DRA) play an important role due to its several advantages over contemporary antennas. In this paper, novel flower-shaped multiple input multiple output (MIMO) DRA is proposed for wireless applications in X- band. The proposed antenna with four ports displays more than -15 dB isolation between ports with defected ground technique. The antenna exhibits 7.2-7.5 GHZ impedance bandwidth and 4.66 dBi gain at 7.3 GHz. MIMO performance parameters: Envelope Correlation Coefficient (ECC) and Diversity Gain (DG) of the proposed antenna are also studied and calculated.

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Dual‐port MIMO dielectric resonator antenna for WLAN applications

Cited by 15 publications

References 29 publications

A differential‐fed dual‐polarized antenna with gain enhancement using hollow dielectric patch resonator

A differential‐fed dual‐polarized antenna with gain enhancement using hollow dielectric patch resonator

Dual‐band circularly polarized MIMO DRA for sub‐6 GHz applications

Novel Flower-Shaped Multiple Input Multiple Output Dielectric Resonator Antenna

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