MIMO application UWB antenna doublet incorporating a sinusoidal decoupling structure

Bilal, Muhammad; Saleem, Rashid; Shafique, Muhammad Farhan; Khan, Hassan Abbas

doi:10.1002/mop.28387

Cited by 18 publications

(18 citation statements)

References 18 publications

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“…A sine curve type nested T‐shaped decoupling structure was used to reduce decoupling, and is given in Figure . The designed structure produces the isolation of 20 dB …”

Section: Isolation Techniquesmentioning

confidence: 88%

Multiport MIMO antennas with mutual coupling reduction techniques for modern wireless transreceive operations: A review

Chouhan

Panda

Gupta

et al. 2017

Int J RF Microw Comput Aided Eng

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The present technology fulfills the requirement of high data rate and high channel capacity using multiple input multiple output (MIMO) technology. The MIMO capacity of the system is increased linearly but due to the multiple antennas placed near to each other, problem of mutual coupling exists, which degrades the maximum achievable performance of the system. The problems of multipath propagation can be solved using MIMO system. The isolation improvement methods decrease the mutual coupling among antenna elements, and improve the gain and efficiency of the system. In this paper, decoupling network isolation approach, parasitic element approach, defected ground structure, Neutralization line, isolation improvement based on metamaterials, isolation improvement using PIN diode, varactor diode, and feeding structure have been incorporated, and their merits and demerits have been discussed. The effect of different permittivity material on antenna parameters has also included.

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“…A sine curve type nested T‐shaped decoupling structure was used to reduce decoupling, and is given in Figure . The designed structure produces the isolation of 20 dB …”

Section: Isolation Techniquesmentioning

confidence: 88%

Multiport MIMO antennas with mutual coupling reduction techniques for modern wireless transreceive operations: A review

Chouhan

Panda

Gupta

et al. 2017

Int J RF Microw Comput Aided Eng

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“…Many MIMO antennas have been proposed to reduce the mutual coupling for UWB systems [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. In [4][5][6][7][8], various decoupling structures have been inserted between two antenna elements to enhance wide band isolation. In [9,10], MIMO antenna has been proposed for WLAN and with a dual-band.…”

Section: Introductionmentioning

confidence: 99%

“…Considering the fact that many MIMO antennas have been proposed, there are only few papers of MIMO technique in UWB systems. For those which could cover the whole UWB band [5,6,11,12,[15][16][17][18][19][20], the size of the antenna in [5,6,11,16,17] is still relatively large. Recently, UWB MIMO antennas with notch-band characteristic have been introduced [21,22].…”

Section: Introductionmentioning

confidence: 99%

Design of High-Isolation Compact Mimo Antenna for Uwb Application

Malekpour¹,

Honarvar²

2016

PIER C

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Abstract-In this paper, a compact multiple-input-multiple-output (MIMO) antenna is proposed for ultra wideband (UWB) communication. The UWB MIMO antenna consists of two identical monopole antenna elements with a comb-line structure on the ground plane to improve impedance matching and enhance isolation. Simulation and measurement have been analysed in terms of reflection coefficient, mutual coupling, dispersion diagram, radiation pattern, peak gain, efficiency and envelope correlation coefficient. Results show that the antenna has an impedance bandwidth larger than 3.1-10.6 GHz, mutual coupling between the two ports lower than −25 dB and envelope correlation coefficient less than 0.001 across the UWB band. The proposed antenna has a compact size of 26 × 31 mm 2 . All the measured and calculated results show that the proposed UWB MIMO antenna is a good candidate for UWB MIMO systems.

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“…Various UWB MIMO antennas have been reported in recent years [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. But some of them are not compact enough for the small wireless devices [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

A miniaturized triple band‐notched MIMO antenna for UWB application

Yang

Hong

et al. 2016

Micro & Optical Tech Letters

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A MIMO/Diversity antenna with triple notch characteristics is proposed in this article. The proposed antenna has triple notches in the WiMAX band (3.3-3.6 GHz), WLAN band (5-6 GHz), and X-band satellite communication (7.2-8.4 GHz) band. Defected Ground Compact Electromagnetic Band Gap (DG-CEBG) is a design used to accomplish band notches. Defected ground planes are utilised so as to achieve compactness in conventional EBG structures. The proposed WiMAX band, WLAN band, and X-band satellite communication band DG-CEBG structures show a compactness of around 46%, 50%, and 48%, respectively, over a conventional EBG structure. In these structures, decoupling strips and a slotted ground plane are used to enhance the isolation between two closely spaced UWB monopoles. The individual monopoles are 90 • angularly separated with a stepped structure which helps to reduce mutual coupling and also contributes towards impedance matching by increasing the current path length. |S 21 | or mutual coupling is found to be less than 15 dB over the whole UWB frequency range. The Envelope Correlation Coefficient (≤ 0.5) is within the acceptable limits over the whole UWB frequency range. Notched frequency depends on the parameters of DG-CEBG structures; when there is a change in these parameters notch frequency is also changed. A low cost FR-4 substrate with thickness (h) = 1.6 mm, permittivity (ε) = 4.4 and loss tangent (δ) = 0.02 is used for the proposed antenna, and it has a compact size of 58 × 45 × 1.6 mm 3 .

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MIMO application UWB antenna doublet incorporating a sinusoidal decoupling structure

Cited by 18 publications

References 18 publications

Multiport MIMO antennas with mutual coupling reduction techniques for modern wireless transreceive operations: A review

Multiport MIMO antennas with mutual coupling reduction techniques for modern wireless transreceive operations: A review

Design of High-Isolation Compact Mimo Antenna for Uwb Application

A miniaturized triple band‐notched MIMO antenna for UWB application

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