A Low-Profile Coplanar Dual-Polarized and Dual-Band Base Station Antenna Array

Nie, Li Ying; Lin, Xian Qi; Chen, Yi Jun; Zhang, Jin; Wang, Bao; Yang, Zi Qiang; Yang, Fan

doi:10.1109/tap.2018.2869222

Cited by 69 publications

(14 citation statements)

References 21 publications

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“…In this design, a small loop inside an outer loop is added to generate a new resonant mode and hence widen the impedance bandwidth. In [39], a comparison of different patches with and without slots, including shorting strip, is performed to identify the structure that provides the widest impedance match. This comparison shows that the position of the coaxial feed cables, chamfer dimensions, and shape of the slotted patch contributed to 21.7% (0.82-1.02 GHz) and 49.5% (1.64-2.72 GHz) impedance bandwidth.…”

Section: Modifications To Radiatormentioning

confidence: 99%

A Review on 5G Sub-6 GHz Base Station Antenna Design Challenges

Farasat

Thalakotuna

Hu³

et al. 2021

Electronics

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Modern wireless networks such as 5G require multiband MIMO-supported Base Station Antennas. As a result, antennas have multiple ports to support a range of frequency bands leading to multiple arrays within one compact antenna enclosure. The close proximity of the arrays results in significant scattering degrading pattern performance of each band while coupling between arrays leads to degradation in return loss and port-to-port isolations. Different design techniques are adopted in the literature to overcome such challenges. This paper provides a classification of challenges in BSA design and a cohesive list of design techniques adopted in the literature to overcome such challenges.

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Section: Modifications To Radiatormentioning

confidence: 99%

A Review on 5G Sub-6 GHz Base Station Antenna Design Challenges

Farasat

Thalakotuna

Hu³

et al. 2021

Electronics

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“…To design such an antenna, the state of the art of base station and satellite antennas are investigated. For the former, numerous studies were proposed in the past years 9–15 . Unfortunately, neither elements nor arrays in the reported literature are applicable for this design, because of the limited HPBW.…”

Section: Introductionmentioning

confidence: 99%

“…For the former, numerous studies were proposed in the past years. [9][10][11][12][13][14][15] Unfortunately, neither elements nor arrays in the reported literature are applicable for this design, because of the limited HPBW. In the conventional designs, typical HPBW of the elements are about 60 in both horizontal and vertical planes, which is far from the specification.…”

Section: Introductionmentioning

confidence: 99%

A triple‐band composite base station and satellite antenna array for maritime application

Long

Peng

Chu

2022

Int J RF Mic Comp-Aid Eng

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This paper presents a triple‐band composite antenna array for maritime application. It consists of a three‐element base station antenna array and a waveguide based satellite antenna, which are applied for near‐shore and long distance off‐shore communications, respectively. For the former, it is a ±45° dual polarized array with dipole radiators and covers 2G/3G/4G bands. The three elements are arranged in a form of half hexagon and attain 180° coverage of half power beamwidth (HPBW) in azimuth plane by switching the feeding ports. For the latter, it is a sequentially fed circularly polarized antenna operating in Ku‐band and has a wide HPBW through loading a dielectric structure. To validate the design idea, a prototype is fabricated and measured. Experimental results show that the base station antenna array achieves wide bandwidth of 49.14% from 0.66 to 1.09 GHz and 46.58% from 1.68 to 2.7 GHz with VSWR < 1.5. Meanwhile, the satellite antenna has a wide 3‐dB axial ratio (AR) bandwidth of 20.1% from 12.1 to 14.8 GHz with reflection coefficients lower than −15 dB. Within the band, the HPBW is larger than 90° and the 3‐dB AR beamwidth covers the HPBW.

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“…With the rapid development of the fifth generation (5G) mobile communication, there is an increasing interest in sub-6 GHz base station MIMO antenna array development in recent years. [1][2][3][4][5] Dual-polarized dipole antenna with wide impedance bandwidth and stable radiation pattern is one of the most popular antennas in base station antenna arrays. [6][7][8][9][10][11] In ref.…”

Section: Introductionmentioning

confidence: 99%

Dual‐polarized stacked microstrip antenna with trident‐shaped baluns for MIMO array development

Chen

Guo

et al. 2021

Int J RF Mic Comp-Aid Eng

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Owing to the high cross-polarization discrimination (XPD) and high isolation characteristics, differential excitation is often employed in dual-polarized microstrip antennas. However, the number of excitation ports will be doubled, and the power dividers in the differential circuit will introduce additional loss, the differential excitation scheme is thus not suitable for dual-polarized largescale MIMO antenna arrays. In this work, a novel dual-polarized stacked microstrip antenna with trident-shaped baluns is proposed for base station MIMO array development. The trident-shaped balun is proposed to replace the traditional differential excitation structures, while keeping the merits of high XPD and high isolation. The proposed antenna operates in the frequency band of 3.3-3.8 GHz. The profile height of the antenna is only 0.09λ 0 (λ 0 is the freespace wavelength at the central frequency), which is much lower than traditional base station antennas (0.25λ 0 ) in the sub-6 GHz band. Moreover, a defective ground structure is implemented in a 2 Â 2 MIMO antenna array to efficiently suppress the mutual coupling among antenna elements. Both simulated and measured results validate the design. Owing to its low-profile height and low mutual coupling characteristic, the proposed design is a good candidate for sub-6 GHz band base station MIMO array developments. K E Y W O R D Sdual-polarization, MIMO antenna arrayj, stacked microstrip antenna.

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A Low-Profile Coplanar Dual-Polarized and Dual-Band Base Station Antenna Array

Cited by 69 publications

References 21 publications

A Review on 5G Sub-6 GHz Base Station Antenna Design Challenges

A Review on 5G Sub-6 GHz Base Station Antenna Design Challenges

A triple‐band composite base station and satellite antenna array for maritime application

Dual‐polarized stacked microstrip antenna with trident‐shaped baluns for MIMO array development

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