MIMO Antenna Using Hybrid Electric and Magnetic Coupling for Isolation Enhancement

Xue, Cheng-Dai; Zhang, Xiu Yin; Cao, Yun Fei; Hou, Zhangju; Ding, Chao Feng

doi:10.1109/tap.2017.2738033

Cited by 75 publications

(29 citation statements)

References 26 publications

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“…In [13], short-circuited stepped-impedance structures were adopted to improve the isolation in a 2×2 patch antenna array. In order to counteract the undesired coupling, neutralization lines or other circuits were adopted to bridge strongly coupled antennas [14]- [16]. Unlike the direct connection of neutralization lines, decoupling networks were based on coupled resonators or coupled circuitry to achieve high port-toport isolation [17]- [19].…”

Section: Introductionmentioning

confidence: 99%

Weak-Field-Based Self-Decoupling Patch Antennas

Lin

Chen

et al. 2020

IEEE Trans. Antennas Propagat.

110

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In this paper, a new self-decoupling method, namely weak-field-based decoupling technique, is proposed and validated based on inset-fed patch antenna arrays. The self-decoupling effect is realized by taking advantage of the inherent weak-field area created by the feeding structure and proposed inset-fed patch. By strategically arranging the array element in the weak-field area of the adjacent antenna element, the coupling strength between adjacent elements can be controlled under a very low level without the need of any additional decoupling circuitry or structures. A two-element patch antenna array was first developed and analyzed, achieving a peak isolation level of 61 dB. Afterwards, a fourelement linear patch antenna array was designed, fabricated and measured to further validate the proposed technique. With the distinct advantages of simple structure and effective isolation enhancement, the proposed self-decoupling method is very promising for MIMO applications.

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Section: Introductionmentioning

confidence: 99%

Weak-Field-Based Self-Decoupling Patch Antennas

Lin

Chen

et al. 2020

IEEE Trans. Antennas Propagat.

110

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“…But for the decoupling in the mutli-band MMO antenna, it has challenges. In order to realize the miniaturization and compactness, adding neutralization line (NL) on the MIMO antenna radiation elements is effective [13]. This structure has not affected the origin element structure, and can realize miniaturization.…”

Section: Introductionmentioning

confidence: 99%

Neutralization Line Decoupling Tri-Band Multiple-Input Multiple-Output Antenna Design

Liu

Zheng

et al. 2020

IEEE Access

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A pair of tri-band multiple-input-multiple-output (MIMO) antennas with high isolation is investigated in this paper. The proposed antenna consists of two monopole antenna elements with an edge to edge spacing of 4 mm (0.03 λ 0 at 2.3 GHz). The monopole antenna element chose the bending line structure that can operate in tri-band and realize miniaturization. To achieve compact dimension and high isolation, symmetrical distribution layout is adopted to decouple the low frequency band, the U-shaped neutralization line (NL) contacting with two microstrip lines, and it can to improve the isolation in high frequency band, and the inverted U-shaped NL contacting with two radiation patch can decoupling in the middle frequency band. And then study the envelope correlation coefficient is lower, and the radiation pattern in operation bands is quasi-omnidirectional. It indicates that the antenna has obtained a satisfactory diversity performance within the whole operation bands which can be a good candidate for some portable MIMO applications. INDEX TERMS Multiple-input-multiple-output, tri-band, high isolation, neutralization line.

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“…Second group methods use the principles of decrease the internal fields amplitudes in a microstrip antennas substrate [2,[8][9]14]. Third group methods requiere some kind of devices which provide additional mutual coupling using transmission lines, resonators and so on [10][11][12]. And the fours group use polarization separation for coupling reduction [15][16].…”

Section: Introductionmentioning

confidence: 99%

Improving the efficiency of antennas of MIMO communication systems

Obukhovets

2019

ITM Web Conf.

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The last two decades were marked by increasing of interest in problems of application of the MIMO systems in a radar and wireless communication. Use of the principles of creation of MIMO systems in communication complexes allows increasing the capacity of channels and speed of information transfer due to increase in number of the transferring and reception antennas. In the report questions of modernization of antennas of the wearable mobile communication devices allowing to reduce correlation of channels and to increase spectral system effectiveness of communication are considered. Results of a research of mutual correlation reduction between two antennas of MIMO system are given. Using method of numerical modelling influence of several options of the decoupling structures on interconnection size between radiators and on their directional patterns were investigated. Comparative results of a pilot study of the model of antennas with the outcome device having the best characteristics and without the decoupling device are presented.

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MIMO Antenna Using Hybrid Electric and Magnetic Coupling for Isolation Enhancement

Cited by 75 publications

References 26 publications

Weak-Field-Based Self-Decoupling Patch Antennas

Weak-Field-Based Self-Decoupling Patch Antennas

Neutralization Line Decoupling Tri-Band Multiple-Input Multiple-Output Antenna Design

Improving the efficiency of antennas of MIMO communication systems

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