A Quad-Element UWB-MIMO Antenna with Band-Notch and Reduced Mutual Coupling Based on EBG Structures

Wu, Wang; Yuan, Bo; Wu, Aiting

doi:10.1155/2018/8490740

Cited by 118 publications

(119 citation statements)

References 16 publications

(19 reference statements)

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“…CCL is calculated by Equations ‐ presented in Ref. . Calculated CCL from simulated and measured data are presented in Figure C.…”

Section: Resultsmentioning

confidence: 99%

“…TARC can be calculated using Equations ‐ as in Ref. .

Γ_{a}^{t} = \frac{\sum_{n = 1}^{N} {|b_{i}|}^{2}}{\sum_{n = 1}^{N} {|a_{i}|}^{2}}

([], b) = ([], S) ([], a)

([], \begin{array}{c} b_{1} \\ b_{2} \\ b_{3} \\ b_{4} \end{array}) = ([], \begin{array}{c} S_{11} & S_{12} & S_{13} & S_{14} \\ S_{21} & S_{22} & S_{23} & S_{24} \\ S_{31} & S_{32} & S_{33} & S_{34} \\ S_{41} & S_{42} & S_{43} & S_{44} \end{array}) ([], \begin{array}{c} a_{1} \\ a_{2} \\ a_{3} \\ a_{4} \end{array})

…”

Section: Resultsmentioning

confidence: 99%

“…It is more convenient to use a multiband antenna instead of multiple antenna elements to operate in multiband, because the latter leads to increase in size of the device. Various techniques to design single band, multiband, and UWB MIMO antenna are reported in recent years in engineering community . In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…In Ref. , quad elements MIMO antenna for ultra wide band (UWB) application is presented. Here, EBG structure with via is used to reduce coupling between two antenna elements.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Design of a compact triple band antenna with independent frequency tuning for MIMO applications

Islam

Kumar

Sen

et al. 2018

Int J RF Microw Comput Aided Eng

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In this article, a planar, low profile microstrip line‐fed triple band multiple input multiple output (MIMO) antenna is presented for WiMax (2.5/3.5/5.5 GHz)/WLAN (2.4/3.6/5.8 GHz) applications simultaneously. The single element of the MIMO antenna consists of (i) a rectangular split ring resonator (SRR), (ii) a stepped impedance resonator (SIR) inside the SRR and (iii) a slot on the SIR. Each of the resonators generates its own individual band and each band is independently tunable. The antenna exhibits three operating bands at 2.35‐2.85 GHz, 3.25‐3.90 GHz and 5.45‐5.65 GHz. Four antenna elements are used to design the proposed MIMO antenna. The simulated results are observed and reported in terms of S‐parameters, gain, radiation patterns, envelope correlation coefficient (ECC), diversity gain (DG), channel capacity loss (CCL) and total active reflection coefficient. ECC and CCL are within the acceptable range defined for 4G and 5G application standards. To validate the simulation results a prototype structure is fabricated and the measured results are compared with those obtained from the simulation.

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“…CCL is calculated by Equations ‐ presented in Ref. . Calculated CCL from simulated and measured data are presented in Figure C.…”

Section: Resultsmentioning

confidence: 99%

“…TARC can be calculated using Equations ‐ as in Ref. .

Γ_{a}^{t} = \frac{\sum_{n = 1}^{N} {|b_{i}|}^{2}}{\sum_{n = 1}^{N} {|a_{i}|}^{2}}

([], b) = ([], S) ([], a)

([], \begin{array}{c} b_{1} \\ b_{2} \\ b_{3} \\ b_{4} \end{array}) = ([], \begin{array}{c} S_{11} & S_{12} & S_{13} & S_{14} \\ S_{21} & S_{22} & S_{23} & S_{24} \\ S_{31} & S_{32} & S_{33} & S_{34} \\ S_{41} & S_{42} & S_{43} & S_{44} \end{array}) ([], \begin{array}{c} a_{1} \\ a_{2} \\ a_{3} \\ a_{4} \end{array})

…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In Ref. , quad elements MIMO antenna for ultra wide band (UWB) application is presented. Here, EBG structure with via is used to reduce coupling between two antenna elements.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design of a compact triple band antenna with independent frequency tuning for MIMO applications

Islam

Kumar

Sen

et al. 2018

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

show abstract

“…A differential stepped‐slot MIMO antenna with band notched at 5.5 GHz was reported, where, in this design, four‐staged slots were introduced to decrease mutual coupling level among the radiating elements. In Reference , a four‐port circular‐shaped monopole antenna with DGS was proposed, in which the band notch in the UWB spectrum was realized by embedding a crescent ring‐shaped slot on the antenna patch. For ensuring high isolation between the antenna ports, a 3 × 3 EBG structure was also introduced on the antenna front plane.…”

Section: Introductionmentioning

confidence: 99%

Multiple‐input‐multiple‐output/diversity antenna with dual band‐notched characteristics for ultra‐wideband applications

Kumar

Lee

Kim

et al. 2019

Micro & Optical Tech Letters

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Design and implementation of a four‐port ultra‐wideband (UWB) multiple‐input‐multiple‐output (MIMO)/diversity antenna with dual band‐notched characteristics are presented. The proposed diversity antenna is composed of four identical rhombic‐shaped monopole radiators arranged orthogonally to achieve better interelement isolation and polarization diversity. At each port, the MIMO antenna shows an impedance bandwidth (S11 ≤ –10 dB) of 10.5 GHz (2.8‐13.3 GHz) and an interelement isolation larger than 18 dB. Furthermore, in order to eliminate 3.5 GHz (Wi‐MAX) and 5.5 GHz (WLAN) bands from the UWB range, the antenna radiators are loaded with elliptical complementary split ring resonator structures. The MIMO performance metrics such as isolation, envelope correlation coefficient, and apparent diversity gain are calculated and presented. The MIMO/diversity antenna prototype is fabricated, and experimental results are verified with simulated results.

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A four port circularly polarized printed multiple‐input multiple‐output antenna with enhanced isolation

Reddy

Sheela

Swaminath

2021

Int J Communication

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In this article, a four-port circularly polarized printed multiple-input multipleoutput (MIMO) antenna is designed to cover Wi-Fi/WLAN (5 GHz), Wi-MAX (3.4-3.6), and C band applications, which consists of four trapezoidal shaped patches with microstrip feed. To achieve high isolation between the ports, the antenna elements are located orthogonally to each other. The antenna elements are separated by placing diagonal lines to further enhance the port isolation. Circular polarization is achieved by modifying the ground plane and

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A Quad-Element UWB-MIMO Antenna with Band-Notch and Reduced Mutual Coupling Based on EBG Structures

Cited by 118 publications

References 16 publications

Design of a compact triple band antenna with independent frequency tuning for MIMO applications

Design of a compact triple band antenna with independent frequency tuning for MIMO applications

Multiple‐input‐multiple‐output/diversity antenna with dual band‐notched characteristics for ultra‐wideband applications

A four port circularly polarized printed multiple‐input multiple‐output antenna with enhanced isolation

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