Spatially Decoupling of CP Antennas Based on FSS for 30-GHz MIMO Systems

Akbari, Mohammad; Ghalyon, Hamdan Abo; Farahani, Mohammad Reza; Sebak, Abdel-Razik; Denidni, Tayeb A.

doi:10.1109/access.2017.2693342

Cited by 99 publications

(70 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, defected ground plans were introduced to increase the antenna isolation as in Reference . The mutual coupling between feeding lines was reduced through different scenarios such as using symmetric feeding network, orthogonal feeding orientation, and depolarized feeding structures . While, suppressing the mutual coupling for a high antenna spatial diversity; meta‐ and frequency selective‐surfaces as antenna superstrates were proposed in Reference .…”

Section: Introductionmentioning

confidence: 99%

On the design of a reject band filter for antennas mutual coupling reduction

Ahmed

Elwi

2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

In this article, a novel concept for mutual coupling reduction between antenna elements is proposed at 2.45 GHz for Wi‐Fi applications. A reject band filter (RBF) is used in order to reduce the mutual coupling between two monopoles for multi‐input multi‐output (MIMO) systems. The proposed RBF inclusions are developed to have zero refractive index response over a specific frequency band. The inclusions considered here are composed of open‐loop resonators; each one with the same iteration level of Minkowski‐like pre‐fractal structures coupled with an open‐stub transmission line to increase the band selectivity. The inclusions are inserted between λ/2‐spaced monopole elements at 2.45 GHz. A significant mutual coupling reduction is realized by incorporating only two RBF cells. Such effective response is attributed to the electromagnetic wave cloaking at 2.45 GHz using the developed RBF inclusions. An extensive theoretical study using both numerical and analytical methods is invoked to obtain the best performance of the proposed MIMO antenna structure. Finally, the experimental and numerical results are agreed excellently.

show abstract

Section: Introductionmentioning

confidence: 99%

On the design of a reject band filter for antennas mutual coupling reduction

Ahmed

Elwi

2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

show abstract

“…This misalignment may also have affected the accuracy of the measured values. Finally, as shown in Table , the size and the gain of the proposed antenna are compared with array antennas, MIMO antenna, metasurface antenna, and metamaterial antenna . The MPA with VCSRM demonstrates better performance over MIMO, metasurface, metamaterial, and array antenna with its high gain and small size.…”

Section: Simulation and Measurement Resultsmentioning

confidence: 99%

“…The Array antennas have improved bandwidth and gains . The multiple‐input and multiple‐output (MIMO) antenna can obtain high‐speed data transfer rates despite having a low gain . However, these antennas are large in size and complex design is required to solve the problem of coupling between elements or ports of an antenna.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6] The multiple-input and multiple-output (MIMO) antenna can obtain high-speed data transfer rates despite having a low gain. [7][8][9] However, these antennas are large in size and complex design is required to solve the problem of coupling between elements or ports of an antenna. The use of metamaterial is a promising technology for performance enhancement, miniaturization, and easy fabrication of antennas.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Millimeter‐wave microstrip patch antenna using vertically coupled split ring metaplate for gain enhancement

Jeong

Hussain

Park

et al. 2019

Micro & Optical Tech Letters

View full text Add to dashboard Cite

This article presents a millimeter‐wave (mmWave) microstrip patch antenna (MPA) with a vertically coupled split ring metaplate (VCSRM). The narrow bandwidth and low gain of MPA are improved using VCSRM by periodically arranging split rings on the front and backsides of a dielectric slab. Numerical and experimental results show that the proposed antenna attains good radiation pattern, a high gain of 11.94 dBi, and a measured fractional bandwidth covering 26.58 to 29.31 GHz (9.77%). The gain of the antenna is increased by 5.35 dBi and the bandwidth is improved by 3.87% when compared to MPA without VCSRM. Thus, the proposed antenna with a small size of 18 × 22 mm2 is suitable for mmWave applications.

show abstract

“…Based on the above concentrations, there are large amounts of solutions to reduce mutual coupling for decades of years. [2][3][4][5][6][7][8][9][10][11] EM bandgap (EBG) structures are planted between adjacent antennas to suppress propagations of surface waves. 2,3 Defected ground structures are etched on metal ground to disturb induced currents.…”

Section: Introductionmentioning

confidence: 99%

Mutual coupling reduction in Fabry‐Pérot cavity antenna array

Zhan

Liu

et al. 2020

Micro & Optical Tech Letters

View full text Add to dashboard Cite

This letter presents the mutual coupling reduction in Fabry-Pérot (FP) cavity antenna array. Partially reflecting surface (PRS) and analogous artificial magnetic conductor reflectarray in the cavity participate in phase and magnitude modulation with spatial decoupling solution. With the proper design for the cells of PRS and reflectarray, along with the distance between them, scattered and surface waves are analyzed independently to achieve the trade-off between mutual coupling reduction and high directivity. With decoupling optimization, S 21 decreases from −20 to −30 dB, and the gain of the decoupling FP cavity antenna array fed by single source drops acceptably from 14.3 to 13.6 dBi simultaneously. The low E-plane coupling coefficient and envelope correlation coefficient are achieved. Besides, the height of the decoupling FP cavity antenna array is lower than 6.3 mm owing to the participation of reflectarray. That the measured results are in good agreements with simulated results verifies the decoupling FP cavity antenna array performances.

show abstract

Spatially Decoupling of CP Antennas Based on FSS for 30-GHz MIMO Systems

Cited by 99 publications

References 27 publications

On the design of a reject band filter for antennas mutual coupling reduction

On the design of a reject band filter for antennas mutual coupling reduction

Millimeter‐wave microstrip patch antenna using vertically coupled split ring metaplate for gain enhancement

Mutual coupling reduction in Fabry‐Pérot cavity antenna array

Contact Info

Product

Resources

About