Dual-Band Platform-Free PIFA for 5G MIMO Application of Mobile Devices

Liu, Da Qing; Zhang, Ming; Luo, He Jia; Wen, Huai Lin; Wang, Jun

doi:10.1109/tap.2018.2863109

Cited by 71 publications

(48 citation statements)

References 19 publications

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“…There are many MIMO antennas for 5G mobile phones, such as slot antennas, monopole antennas and loop antennas . Eight or more antenna elements for 5G mobile phones are located at the two long sides, corners or at the corners and the two long sides simultaneously. When the antenna elements for 5G are located at the corners, they will influence the main antenna and the sub antenna for 2G/3G/4G.…”

Section: Introductionmentioning

confidence: 99%

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Slot antenna array for fifth generation metal frame mobile phone applications

Huang

Wang

2019

Int J RF Microw Comput Aided Eng

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An eight‐element antenna array based on open/closed slot modes that can cover the 3.5 GHz band (3400‐3600 MHz) is proposed and studied. There are two kinds of antenna elements with the slot sizes of 10.8 × 1 mm2 and 28.8 × 1 mm2 for open and closed slot modes, respectively. Both the two kinds of antenna elements are realized with the help of the metal frames with the height of 7 mm at the two long sides of the ground. The proposed antenna array is suitable for 5G metal frame mobile phone applications. A prototype is fabricated and measured. The measured results show that all the eight antenna elements can cover the band of 3400‐3600 MHz and the isolations are bigger than 13 dB, the measured efficiencies all are bigger than 42% and the measured envelope correlation coefficients are lower than 0.15.

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Section: Introductionmentioning

confidence: 99%

“…The antennas in ref. [] are not suitable and applicable for mobile phones with metal frames. To the best of our knowledge, there are not eight or more antenna elements located at the two long sides, which are suitable for real 5G metal frame mobile phone applications.…”

Section: Introductionmentioning

confidence: 99%

Slot antenna array for fifth generation metal frame mobile phone applications

Huang

Wang

2019

Int J RF Microw Comput Aided Eng

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“…Recent literature on fully-grounded planar topology antennas constructed with non-textile materials show promising electromagnetic (EM) performances in terms of measured BW, maximum peak gain, radiation efficiency, and FTBR [8][9][10][11][12][13][14][15][16][17]. They are normally based on well characterized dielectric and conductive materials, like Rogers Duroid 5880 [8][9][10]14,[18][19][20][21][22][23][24][25], Rogers 4003 [12], Rogers 3003 [14], and F4B [16] and FR4 Microwave [26][27][28][29], which lead to consistent results between simulations and measurements. The thinness of the substrates used (between 0.5 mm and 2 mm) [8,10,12,13,16,[18][19][20][24][25][26]28,30] offers good BW and radiation efficiencies, giving some clues about their potential for textile applications.…”

Section: Introductionmentioning

confidence: 99%

“…The thinness of the substrates used (between 0.5 mm and 2 mm) [8,10,12,13,16,[18][19][20][24][25][26]28,30] offers good BW and radiation efficiencies, giving some clues about their potential for textile applications. They also allow for a plethora of design alternatives to improve the EM performances, normally based on three patch shapes, like rectangular [8,9,[11][12][13]15,18,20,22,[24][25][26]29,30], circular [21,23,31], and square [14,19], combined with different slotted patch configurations like linear [8,12,16,19,20,26,28,30], meandered [18], ramp [18], circular-ring [21], complex [17,22], L-shaped [29], and U-shaped [24]. Feeding techniques are also relevant w...…”

Section: Introductionmentioning

confidence: 99%

“…Feeding techniques are also relevant when they are used for textile applications-coaxial fed [11,12,14,16,17,21,[23][24][25][26]28,31], microstrip line fed [9,10,22,30], microstrip inset line fed [8,9,19,20], aperture-coupled fed [13], and L-shaped line fed [15] antennas. Finally, antennas for single-band [8][9][10][11][12][13][14][15][16][17][18][19][20][23][24][25][26]28,30,31], dual-band [29], and reconfigurable bands [21,22,25] have been reported, which is sometimes also also desirable in textile applications.…”

Section: Introductionmentioning

confidence: 99%

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Planar Textile Off-Body Communication Antennas: A Survey

2019

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Fully textile smart wearables will be the result of the complete integration and miniaturization of electronics and textile materials. Off-body communications are key for connecting smart wearables with external devices, even for wireless power transfer or energy harvesting. They need to fulfill specific electromagnetic (EM) (impedance bandwidth (BW), gain, efficiency, and front to back radiation (FTBR)) and mechanical (bending, crumpling, compression, washing and ironing) requirements so that the smart wearable device provides the required performance. Therefore, textile and flexible antennas require a proper trade-off between materials, antenna topologies, construction techniques, and EM and mechanical performances. This review shows the latest research works for textile and flexible planar, fully grounded antennas for off-body communications, providing a novel design guide that relates key antenna performance parameters versus topologies, feeding techniques, conductive and dielectric textile materials, as well as the behavior under diverse measurement conditions.

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Broadband Multiple Input Multiple Output antenna for sub‐6‐GHz 5G communications

Vishvaksenan¹,

Kalidoss²,

Partibane³

et al. 2023

Int J Communication

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Summary This paper presents the design of a miniaturized broadband monopole antenna for 5G and Wireless Local Area Network (WLAN) applications in mobile handsets. The proposed monopole evolved from a rectangular geometry of size 12 × 5 mm. The slot and stub loading techniques are used to improve the impedance matching offered by the antenna. Furthermore, bandwidth broadening is achieved using lumped elements loaded onto the aperture of the antenna. The proposed miniaturized antenna exhibits a measured impedance bandwidth of 63.6% (3.0–5.8 GHz) covering the 5G spectrum allocations under sub‐6 GHz and the WLAN services. The antenna elements are replicated along the sides of the mock mobile handset PCB to study the functionality of the eight‐element MIMO antenna. The prototype MIMO antenna fabricated and tested in the laboratory offers a peak gain of 3 dBi and total efficiency greater than 72%. Owing to miniaturization, the spatial distribution of the antenna element provides a low envelope correlation (ECC) of less than 0.2 and good diversity gain (DG) greater than 7.8 dB. In addition, the mean effective gain (MEG), channel capacity loss (CCL), multiplexing efficiency (ME), and total active reflection coefficient (TARC) are evaluated and presented. The estimated MIMO metrics are within the desired range of operation and hence make the antenna suitable for a complex propagation environment. The prototype antenna is developed on a thin microwave laminate with low‐loss characteristics and tested under laboratory conditions. The outcomes indicate that the proposed eight‐element antenna can be applied to 5G MIMO communications.

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Dual-Band Platform-Free PIFA for 5G MIMO Application of Mobile Devices

Cited by 71 publications

References 19 publications

Slot antenna array for fifth generation metal frame mobile phone applications

Slot antenna array for fifth generation metal frame mobile phone applications

Planar Textile Off-Body Communication Antennas: A Survey

Broadband Multiple Input Multiple Output antenna for sub‐6‐GHz 5G communications

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