Small‐size printed strip MIMO antenna for next generation mobile handset application

Han, Minseok; Choi, Jaehoon

doi:10.1002/mop.25746

Cited by 17 publications

(9 citation statements)

References 9 publications

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“…For practically uncorrelated MIMO antenna, the acceptable diversity gain limits the ECC below 0.5 . Figure A shows the ECC features of the proposed antenna obtained from the measured S‐parameters.…”

Section: Results With Explanationsmentioning

confidence: 99%

A compact wide band textile MIMO antenna with very low mutual coupling for wearable applications

Biswas

Chakraborty

2019

Int J RF Microw Comput Aided Eng

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This communication presents a compact wide band wearable MIMO antenna with very low mutual coupling (VLMC). The proposed antenna is composed of Jeans material. Two “I” shaped stubs are connected in series and are employed on the ground plane between the two patches separated by 0.048 λ to increase isolation characteristics of the antenna‐port. The antenna covers frequency spectrum from 1.83 GHz to 8 GHz (about 125.5%) where the minimum port isolation of about 22 dB at 2.4 GHz and maximum of about 53 dB at 5.92 GHz are obtained. The envelope correlation coefficient (ECC) of the MIMO antenna is obtained to be less than 0.01 with a higher diversity gain (DG > 9.6) throughout the whole operating band. The proposed MIMO antenna is cost effective and works over a wide frequency band of WLAN (2.4‐2.484 GHz/5.15‐5.35 GHz/5.72‐5.825 GHz), WiMAX (3.2‐3.85 GHz) and C‐band downlink‐uplink (3.7‐4.2 GHz/5.925‐6.425 GHz) applications. Simulation results are in well agreement with the measurement results.

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Section: Results With Explanationsmentioning

confidence: 99%

A compact wide band textile MIMO antenna with very low mutual coupling for wearable applications

Biswas

Chakraborty

2019

Int J RF Microw Comput Aided Eng

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“…The correlation can be measured by using S-parameters as well as, by far-field radiation patterns of the MIMO antenna. ECC is used to find the diversity performance of the MIMO antennas, which can be determined from the mutual coupling and return loss at the ports, 12 and is given in Equation (3):…”

Section: Mathematical Aspects Of Mimo Antenna Designmentioning

confidence: 99%

“…The DG can also be given by Equation (11). The effective diversity gain (EDG) can be given in Equation (12). There must be low coupling between the 2 antennas; otherwise, the DG will be low.…”

Section: Mathematical Aspects Of Mimo Antenna Designmentioning

confidence: 99%

“…The correlation can be measured by using S ‐parameters as well as, by far‐field radiation patterns of the MIMO antenna. ECC is used to find the diversity performance of the MIMO antennas, which can be determined from the mutual coupling and return loss at the ports, and is given in Equation (3):

(|||, {normalρ}_{e} (|, i, j, N)) = \frac{(|||, {false\sum}_{n = 1}^{N} S_{i, n}^{*} S_{n, j})}{\sqrt{|\prod_{k true(= i, j true)} [1 - \sum_{n = 1}^{N} S_{i, n}^{*} S_{n, k}]|}},

where i , j are the antenna elements and N is the number of antennas. For the 2‐element antenna system, ECC can be given as Equation (4):

{normalρ}_{12} = \frac{(||, {(||, S_{11}^{*} S_{12} + S_{21}^{*} S_{22})}^{2})}{(|, 1 - {(||, (||, S_{11}))}^{2} - {(||, (||, S_{21}))}^{2}) true(1 - {(||, (||, S_{22}))}^{2} - {(||, (||, S_{12}))}^{2} true)},

where S 11 , S 22 are return losses at 2 ports and S 21, and S 12 are the isolation parameters.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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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“…Maximum acceptable value of Envelope correlation coefficient is 0.5 for good diversity performance [23]. To evaluate diversity performance of the proposed antenna, the envelope correlation coefficient has been calculated for both measured and simulated results (see Fig.…”

Section: A Radiation Performancementioning

confidence: 99%

Compact MIMO Antenna for Multiband Mobile Applications

Agrawal

Srivastava

2017

J. Microw. Optoelectron. Electromagn. Appl.

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Small‐size printed strip MIMO antenna for next generation mobile handset application

Cited by 17 publications

References 9 publications

A compact wide band textile MIMO antenna with very low mutual coupling for wearable applications

A compact wide band textile MIMO antenna with very low mutual coupling for wearable applications

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

Compact MIMO Antenna for Multiband Mobile Applications

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