Dual-Band MIMO Antenna With Compact Self-Decoupled Antenna Pairs for 5G Mobile Applications

Ren, Zhouyou; Zhao, Anping

doi:10.1109/access.2019.2923666

Cited by 145 publications

(104 citation statements)

References 24 publications

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“…Compared with reported works, the proposed four-element MIMO antenna system has advantages of compact size, low profile, high radiation gain, and low ECCs. Therefore, it is a good candidate for 3.5 GHz-band fifth-generation communication [15]. ECC Frequency (GHz) Figure 10.…”

Section: Resultsmentioning

confidence: 99%

Compact Four-Element Mimo Antenna System Based on Substrate-Integrated-Waveguide Cavities

Niu¹,

Tan²

2020

PIER Letters

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A compact four-element multiple-input-and-multiple-output (MIMO) antenna system is proposed based on substrate-integrated-waveguide (SIW) cavities. By bisecting a square SIW cavity, two rectangle half-mode cavities with opened edges are formed. They are arranged side by side sharing a row of metallic vias. Then two narrow T-shaped slots are etched along symmetry planes to divide these two cavities into four quarter-mode sub-cavities. Excited by feeding ports, four antenna elements with compact size are constructed, which radiate incident wave through opened cavity edges and etched slots. Moreover, antenna isolation can be easily improved by adjusting slot length though these elements interconnect. A prototype with the cavity size of 0.22λ 0 × 0.86λ 0 × 0.04λ 0 has been fabricated. The fabricated MIMO antenna system exhibits the center frequency of 3.51 GHz, port isolation of 14 dB, envelope correlation coefficient of 0.03, peak gain of 4.9 dBi, and high efficiency of 77.4%. The compact size and effective isolation improvement make the proposed design attractive for practical applications.

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Section: Resultsmentioning

confidence: 99%

Compact Four-Element Mimo Antenna System Based on Substrate-Integrated-Waveguide Cavities

Niu¹,

Tan²

2020

PIER Letters

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“…When q 4 increased, the maximum value of |S 21 | would also move towards the low frequency, but the maximum value would deteriorate, as shown in Figure 19b. In order to further understand the performance of the proposed antenna, we compared it with other similar 5G frame antennas [27][28][29]. As shown in Table 1, the height of the proposed antenna was 5.3 mm, while the height of other similar frame antennas was 6.8 mm and 7 mm.…”

Section: Parametric Studymentioning

confidence: 99%

“…In order to improve the isolation between MIMO antenna elements, the most direct method is to increase the distance between antenna elements. However, due to the limited area of mobile terminal system, some additional decoupling methods are often needed, mainly including neutral line [19,20], parasitic strip [21,22], slotted ground [23,24], the polarized antenna [25,26], self-isolated antenna elements [27][28][29], etc. Zhao et al [27] proposed an eight-element MIMO array, which consists of a T-shaped feeding element and two symmetrical L-shaped radiating elements, where the two L-shaped elements not only act as the antenna radiating element but also the decoupling element between two adjacent antenna elements.…”

Section: Introductionmentioning

confidence: 99%

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A Low-Profile and High-isolated MIMO Antenna for 5G Mobile Terminal

Sun

et al. 2020

Micromachines

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An eight-element multiple-input multiple-output (MIMO) frame antenna array in the 3.5 GHz band (3400–3600 MHz) for 5G mobile terminal systems was presented. By using the adjacent grounding and electromagnetic coupling feeding technology, the loop antenna element could generate two resonant frequencies, thus effectively expanding its bandwidth. By adopting double-sided parallel strip line (DSPSL) technology, the electromagnetic coupling inside the loop antenna could be adjusted, and the size of the loop antenna could be effectively reduced so that the MIMO antenna array could obtain a low-profile structure. The total size of the MIMO array was 150 mm × 75 mm × 5.3 mm. Without additional isolation measures, the measured −6 dB impedance bandwidth (BW) was 3400–3660 MHz, and the minimum isolation between antenna elements was better than −20 dB. The proposed antenna was expected to be applied to 5G mobile terminals based on its low-profile, high-isolated characteristics, and good MIMO performance.

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“…Due to the increased demand of mobile communication system for overcoming some unwanted phenomena such as multipath fading, large latency, and low data-rate transmission, the fifth generation (5G) system is considered as a promising solution over the current 4G (fourth generation) system [1][2][3]. To improve both the link reliability and channel capacity or spectrum efficiency in the 5G environment, a well-known antenna diversity technique is usually demonstrated in the available literature by using multiple-input and multiple-output (MIMO) antenna systems.…”

Section: Introductionmentioning

confidence: 99%

Printed 5g Mimo Antenna Arrays in Smartphone Handset for Lte Bands 42/43/46 Applications

Aziz¹,

Naji²

2020

PIER M

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In this paper, a dual-band 4-, 6-, and 8-element multiple-input multiple-output (MIMO) antenna arrays operating at the sub-6-GHz (LTE 42/43 and 46) bands for the fifth-generation (5G) smartphones are proposed. To realize these three MIMO applications in two LTE bands, miniaturized spiral and meander line-shaped strips coupled-fed patch antenna elements are printed on the front side of an FR4 system circuit board and are able to excite two resonance modes. Polarization and spatial diversity techniques are applied to these elements so that the enhanced isolation and reduced coupling effects can be attained. The proposed single antenna element besides 8-element antenna array has been fabricated and experimentally measured. Desirable simulated and measured S-parameters (reflection and transmission coefficients) are obtained for the antenna arrays over the working dual frequency bands. The diversity performance, such as the envelope correlation coefficient (ECC) and diversity gain (DG), has also been simulated and analyzed. Moreover, the performance results, antenna gain, and efficiency over the bands and radiation patterns at the specified resonant frequencies are also presented.

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Dual-Band MIMO Antenna With Compact Self-Decoupled Antenna Pairs for 5G Mobile Applications

Cited by 145 publications

References 24 publications

Compact Four-Element Mimo Antenna System Based on Substrate-Integrated-Waveguide Cavities

Compact Four-Element Mimo Antenna System Based on Substrate-Integrated-Waveguide Cavities

A Low-Profile and High-isolated MIMO Antenna for 5G Mobile Terminal

Printed 5g Mimo Antenna Arrays in Smartphone Handset for Lte Bands 42/43/46 Applications

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