Compact four-port vertically polarized UWB monopole antenna for MIMO communications

Premalatha, J.; Sheela, D.

doi:10.1108/cw-04-2020-0055

Cited by 7 publications

(5 citation statements)

References 25 publications

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“…The proposed antenna has less inter-element coupling and a lower ECC value than previous reported designs [12,14,15,18,20,26,27,30,32].…”

mentioning

confidence: 82%

“…E can be used to calculate the MEG ratio to measure the antenna power imb TARC is a measure of diversity array efficiency that reflects the effects coupling and can be calculated using Equation (6). Table 1 shows that the mea ratio and the TARC are greater than 0.99 and less than −14.41 dB, respectivel shows that the TARC is stable due to the high isolation between the unit elem [7,23,26,27,30,32], th antenna has a simple geometry comprised of a basic elliptical radiato configuration.…”

Section: Mean Effective Gain (Meg) and Total Active Reflection Coefficient (Tarc)mentioning

confidence: 99%

“…In [17][18][19][20][21], different slots and stubs were used to improve the isolation between the antenna elements. In [22][23][24][25][26][27][28][29][30][31][32], different MIMO antenna designs were reported with the UWB frequency range. In addition, it is important to investigate the characteristics of the antennas installed on a large metal body for the vehicular environment [33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

“…Unlike the complex antenna structures reported in [7,23,26,27,30,32], the proposed antenna has a simple geometry comprised of a basic elliptical radiator monopole configuration.…”

mentioning

confidence: 99%

“…When compared to [10,20,22,26,27,30], the spacing between the antenna elements is small and, thus, more elements can be packed into a small space.…”

mentioning

confidence: 99%

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Design and Performance Analysis of a Compact Quad-Element UWB MIMO Antenna for Automotive Communications

et al. 2021

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This paper presents the design and analysis of a planar ultra-wideband (UWB) multiple-input-multiple-output (MIMO) antenna for modern vehicular communication systems. The proposed unit cell antenna structure was designed using modified elliptical radiators on a Rogers RO3003 substrate, has a size of 22 × 22 × 0.76 mm3, and covers an impedance bandwidth (S11 ≤ −10 dB) of 3.14 GHz to 12.24 GHz. The peak gain and efficiency of the unit cell prototype are 5.1 dBi and 81%, respectively. The unit cell was further developed into a MIMO antenna configuration with four elements placed orthogonal to each other in a single plane measuring 50 × 50 × 0.76 mm3. The measured isolation between the antenna elements was greater than 20 dB. The measured envelope correlation coefficient (ECC) of the MIMO antenna was less than 0.004, the diversity gain (DG) was greater than 9.67 dB, the total active reflection coefficient (TARC) was <−10 dB, and the mean effective gain (MEG) ratio was > 0.99. The characteristics of the proposed unit cell and the MIMO antenna were investigated for housing effects in order to validate the consistent performance of the antenna in the presence of conducting bodies. In addition, the radiation characteristics of the antenna when mounted on a vehicle were analyzed using a virtual model of the car. The results show that the proposed quad-element UWB MIMO array is compact, has good performance, and is well-suited for automotive applications.

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“…The proposed antenna has less inter-element coupling and a lower ECC value than previous reported designs [12,14,15,18,20,26,27,30,32].…”

mentioning

confidence: 82%

Section: Mean Effective Gain (Meg) and Total Active Reflection Coefficient (Tarc)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Unlike the complex antenna structures reported in [7,23,26,27,30,32], the proposed antenna has a simple geometry comprised of a basic elliptical radiator monopole configuration.…”

mentioning

confidence: 99%

“…When compared to [10,20,22,26,27,30], the spacing between the antenna elements is small and, thus, more elements can be packed into a small space.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Design and Performance Analysis of a Compact Quad-Element UWB MIMO Antenna for Automotive Communications

et al. 2021

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Reconfigurable dual element dual band MIMO antenna for 5G (Sub-6 GHz) and WLAN applications

Singh

Mahto

Sinha

2022

COMPEL

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Purpose This study aims to present dual band reconfigurable MIMO antenna for 5G (sub-6 GHz) and WLAN applications. Design/methodology/approach To achieve optimum bandwidth, radiation pattern and radiation efficiency, the defected ground structure (DGS) and a rectangular stub connected with the DGS are used. To further cover the sub-6 GHz spectrum (3.4–3.6 GHz) for future 5G communications, a two-element multi-input multi-output (MIMO) antenna configuration is designed by using the single element antenna. The proposed reconfigurable MIMO antenna using a PIN diode is designed on an FR4 substrate with a dielectric constant of 4.4 and a loss tangent of 0.02 and a 35 × 20 × 1.6 mm3 dimension. Findings The proposed antenna achieved dual operating bands of 3.4–4.1 GHz (5 G sub-6GHz applications) and 4.99–5.16 GHz (WLAN application) in the D = ON state. For D = OFF state, the proposed antenna achieved 3.55–3.65 GHz and 3.66–4.05 GHz frequency bands for 5G (sub-6GHz) applications. In terms of the envelop correlation coefficient, diversity gain, mean effective gain, total active reflection coefficient and isolation between the ports, the proposed antenna’s diversity performance characteristics are investigated and the obtained values are 0.05, 9.9 dB, ±3dB, −4dB, −15dB, respectively. Research limitations/implications The fabricated prototype antenna on FR4 substrate has measurable parameters that are in good agreement with the simulated findings. Due to hardware design limitations, there is a minor difference between software and hardware results. Originality/value The proposed MIMO antenna is compact and reconfigurable for 5G (sub-6GHz) and WLAN applications, and from the graph, the measurements and simulations have been found to be in close agreement.

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Compact Self-Isolated Four-Element MIMO Antenna for WLAN and ISM Bands Application

2023

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A compact self-isolated four-element MIMO antenna is introduced for use in ISM systems and WLAN applications in the 2.4 GHz frequency band. The proposed design consists of four printed dipoles so four integrated baluns are responsible for feeding these antennas. By choosing an appropriate arrangement of the elements next to each other and using the feature of self-isolated antennas, great isolation is achieved in the first step. Finally, by utilizing a printed decoupling component in the space between the dipoles, the value of the envelope correlation coefficient (ECC) parameter comes very close to zero for the MIMO antenna. The major part of the isolation in this design is the responsibility of the self-isolated technique, and adding the decoupling element at the last stage of the design is to complete the antenna isolation process. The fabricated prototype of the proposed MIMO antenna operating at 2.25-2.87 GHz frequency band reaches the measured port-to-port isolation of better than 19 dB, ECC of less than 0.0009, the peak gain of 8.6 dBi with total dimensions of 1.11λ0×1.11 λ0×0.34λ0. The numerical and experimental results approve the excellent MIMO performance for 2.4 GHz applications.INDEX TERMS self-isolated, MIMO antenna, WLAN, ISM

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Compact four-port vertically polarized UWB monopole antenna for MIMO communications

Cited by 7 publications

References 25 publications

Design and Performance Analysis of a Compact Quad-Element UWB MIMO Antenna for Automotive Communications

Design and Performance Analysis of a Compact Quad-Element UWB MIMO Antenna for Automotive Communications

Reconfigurable dual element dual band MIMO antenna for 5G (Sub-6 GHz) and WLAN applications

Compact Self-Isolated Four-Element MIMO Antenna for WLAN and ISM Bands Application

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