Novel Metamaterial Compact Planar MIMO Antenna Systems with Improved Isolation for WLAN Application

Torabi, Yalda; Omidi, Reza

doi:10.1007/s11277-018-5848-5

Cited by 12 publications

(6 citation statements)

References 17 publications

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“…17. .90 −4°28°78°114.5° It is well known that when a MIMO system of N × N elements has its individual subchannels uncorrelated, the channel capacity is proportional to N [51]. Nevertheless, the elements of a MIMO antenna array are never entirely uncorrelated.…”

Section: Measured Resultsmentioning

confidence: 99%

Characteristic mode analysis applied to reduce the mutual coupling of a four‐element patch MIMO antenna using a defected ground structure

Fritz‐Andrade

Miguel

Gómez‐Villanueva

et al. 2019

IET Microwaves, Antennas & Propagation

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A multiple‐input–multiple‐output (MIMO) microstrip patch antenna array of four elements is proposed to cover the 5.8 GHz WLAN band. The characteristic mode analysis is carried out to design a defected ground structure that improves the MIMO performance without impacting negatively the radiation characteristics of the four‐element array. Simulations and measurements demonstrate that the implemented prototype reaches a maximum mutual coupling of −32 dB and a gain‐per‐element of 5.3 dB with good MIMO attributes, surpassing many other proposals in the antenna literature: maximum envelope correlation coefficient of 0.0001, diversity gain very close to 10 dB, capacity loss false(Clossfalse) near to 0.0023 bps/Hz at the resonant frequency, multiplexing efficiency )(ηmunormalxij of 0.935, and a total active reflection coefficient weakly dependent on the excitation phases. The presented design is proposed for operation on the IEEE 802.11a/n standard.

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Section: Measured Resultsmentioning

confidence: 99%

Characteristic mode analysis applied to reduce the mutual coupling of a four‐element patch MIMO antenna using a defected ground structure

Fritz‐Andrade

Miguel

Gómez‐Villanueva

et al. 2019

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

show abstract

“…This research can be extended by improving the mutual coupling between the two antenna ports to reduce the overall size of the MIMO system [2], to improve its radiation efficiency and for delivering higher data rates [45]. The interesting techniques are that, metamaterial spiral S-shaped resonators are applied between the two antenna ports [8], a metal strip is pasted on the upper surface of each DRA [41] and slots are cut through the ground plane [46], for parallel configuration.…”

Section: Discussionmentioning

confidence: 99%

“…For parallel configuration, the feeding ports are fed by the same feeding techniques. Such configurations are shown by the two bent meander line antennas [7] and two identical meander line antennas [8], where both of them are placed along the same x-axis. For orthogonal configuration, the perpendicular feeding ports can be fed by the same or different feeding techniques.…”

Section: Introductionmentioning

confidence: 99%

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A Triple Band Hybrid MIMO Rectangular Dielectric Resonator Antenna for LTE Applications

et al. 2019

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“…In [ 100 ], an MA is used to improve the isolation to 34 dB and small value of RCS of 11 dB is achieved. Thus, the MA and SRR are widely used between resonating elements to improve the isolation and reduce the mutual coupling [ 101 ].…”

Section: Performance Enhancement Of Antennas By Using Metamaterialsmentioning

confidence: 99%

Metamaterials and Their Application in the Performance Enhancement of Reconfigurable Antennas: A Review

et al. 2023

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Metamaterials exhibit properties in terms of subwavelength operation or phase manipulation, among others, that can be used in a variety of applications in 5G communication systems. The future and current 5G devices demand high efficiency, high data rate, computational capabilities, cost-effectiveness, compact size, and low power consumption. This variation and advancement are possible when the antenna design is revised to operate over wideband, high gain, and multiband and has characteristics of compact size, reconfiguration, absorption, and simple ease of fabrication. The materials loaded with antennas or, in the same cases, without antennas, offer the aforementioned characteristics to bring advancement in order to facilitate users. A number of works on designing metasurfaces capable of improving bandwidth, gain efficiency, and reducing the size and cost of antennas are available in the literature for this purpose. Not only are these applications possible, but the intelligent metasurfaces are also designed to obtain reconfiguration in terms of frequency and polarization. The number of absorbers loaded with metamaterials is also designed to improve the absorption percentage used for radar applications. Thus, in this paper, the general overview of different types of metamaterials and their role in performance enhancement and application in 5G and 6G communication systems is discussed.

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Novel Metamaterial Compact Planar MIMO Antenna Systems with Improved Isolation for WLAN Application

Cited by 12 publications

References 17 publications

Characteristic mode analysis applied to reduce the mutual coupling of a four‐element patch MIMO antenna using a defected ground structure

Characteristic mode analysis applied to reduce the mutual coupling of a four‐element patch MIMO antenna using a defected ground structure

A Triple Band Hybrid MIMO Rectangular Dielectric Resonator Antenna for LTE Applications

Metamaterials and Their Application in the Performance Enhancement of Reconfigurable Antennas: A Review

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