Multi-layer 5G mobile phone antenna for multi-user MIMO communications

Ojaroudiparchin, Naser; Shen, Ming; Pedersen, Gert Frølund

doi:10.1109/telfor.2015.7377529

Cited by 67 publications

(31 citation statements)

References 5 publications

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“…CONCLUSION This paper proposed designs for 5G mobile-phone antenna at 21.5 GHz of frequency.Their S 11 , VSWR, polar plots and radiation patterns showed that they can be used as 5G antennas. In future these antenna designs can be applied with phase shifters so that beam can be steered itself as the user moves [2].This will help to achieve peak data rate and high gain beams from various directions [4].…”

Section: ) U Shape Antenna Arraymentioning

confidence: 99%

Design And Analysis of 5g Antennas For Mobile Applications

Bhandari¹

2017

IJRASET

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This paper shows the comparison in two designs i.e. L shape and u shape of millimeter wave (mm-wave) array antenna. L shape antenna has two identical sub arrays having four patches in each array whereas u shape antenna has three identical sub arrays with four patch on each array arranged along the edges of the mobile phone pcb, both have been designed by neltecny9220 material with dielectric constant (ε r ) 2.2 and loss tangent (tanδ) 0.0009 has an array size of 48x12x0.787 mm3 .proposed geometry is operating at a frequency of 21.5 ghz with a patch size of 4.32 x 2 mm2. This proposed geometry improves the return loss (s 11 ) and other parameters. Coaxial technique is used for feeding .for this simulation hfss v11.0 is used. Keywords: 5g; return loss (s 11 ); patch antenna; hfssv11.0.;coaxial feeding I. INTRODUCTIONWith the increase in 4G deployment demands for higher data rates, low cost, better connectivity, unprecedented growth in the connected devices we look for the development of another generation which can provide us with the above requirements i.e. 5G . The major issue with 5G technology is that there is such an enormously wide variation in the requirements: superfast downloads to small data requirements for IoT than any one system will not be able to meet these needs. Accordingly a layer approach is likely to be adopted. Every layer has its own significance and is dependent. One such layer discusses the development of antennas which are capable of forming highly directional beams which are capable of being steered according to the requirement. II section of this paper deals with the development 3 D coverage phased array L shape and U shape antenna for 5G wireless systems. Proposed designs show the switching characteristics of the antenna packages to select the desired area of coverage with high gain beams [3]. The proposed antenna package operates at 21.5 GHz which is one of the candidate bands for 5G mobile communication. This proposed package consists of three sub arrays of microstrip antennas. Each of the sub arrays in both the designs is steerable in scanning range of -90° to 90° (Theta plane) [2] as shown in Fig.1 .III section of this paper deals with the comparison of the results of the proposed design i.e. S-parameter, VSWR, radiation pattern and polar plot.

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Section: ) U Shape Antenna Arraymentioning

confidence: 99%

Design And Analysis of 5g Antennas For Mobile Applications

Bhandari¹

2017

IJRASET

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“…The switched‐beam phased array antennas are used in emerging wireless applications including modern radars, biomedical and satellite systems . The switched‐beam antennas are an integral part of a promising keyless physical layer security technique termed as directional modulation (DM) to transmit the digitally modulated information signals in a prespecified secure wireless communication spatial direction in free space .…”

Section: Introductionmentioning

confidence: 99%

Ten switched‐beams with 2 × 2 series‐fed 2.4 GHz array antenna and a simple beam‐switching network

Nawaz

Tekin²

2020

Int J RF Microw Comput Aided Eng

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This article presents a 2 × 2 series fed 2.4 GHz patch antenna array having multiple beam switching capabilities by using two simple 3 dB/90 couplers to achieve required amplitude and phase excitations for array elements with reduced complexity, cost and size. The beam switching performance with consistent gain and low side lobe levels (SLL) is achieved by exciting the array elements from orthogonally placed thin quarter-wave (λ g /4) feeds. The implemented array is capable to generate ten (10) switched-beams in 2-D space when series fed elements are excited from respective ports through 3 dB quadrature couplers. The dual polarized characteristics of presented array provide intrinsic interport isolation between perpendicularly placed ports through polarization diversity to achieve independent beam switching capabilities for intended directions. The implemented antenna array on 1.575 mm thick low loss (tan δ = 0.003) NH9450 substrate with ε r = 4.5 ± 0.10 provides 10 dB return loss impedance bandwidth of more than 50 MHz. The measured beam switching loss is around 0.8 dB for beams switched at θ = ±20 , Ф = 0 , 90 , and 45 with average peak gain of 9.5 dBi and SLL ≤ −10 dB in all cases. The novelty of this work is the capability of generating ten dual polarized switched-beams by using only two 3 dB/90 couplers as beam controllers. K E Y W O R D S2-D beam switching, 3 dB/90 coupler, array antenna, beam controllers, reduced complexity, series feeding

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“…This technology is a key component and probably the most established to truly reach the promised transfer data rates of fifth generation (5G) communication systems [4,5]. MIMO antennas are important for increasing channel capacity and link reliability [6,7]. Standard MIMO networks tend to use two or four antennas in a single physical package.…”

Section: Introductionmentioning

confidence: 99%

Mobile-Phone Antenna Array with Diamond-Ring Slot Elements for 5G Massive MIMO Systems

et al. 2019

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A design of mobile-phone antenna array with diamond-ring slot elements is proposed for fifth generation (5G) massive multiple-input/multiple-output (MIMO) systems. The configuration of the design consists of four double-fed diamond-ring slot antenna elements placed at different corners of the mobile-phone printed circuit board (PCB). A low-cost FR-4 dielectric with an overall dimension of 75 × 150 mm2 is used as the design substrate. The antenna elements are fed by 50-Ohm L-shaped microstrip-lines. Due to the orthogonal placement of microstrip feed lines, the diamond-ring slot elements can exhibit the polarization and radiation pattern diversity characteristic. A good impedance bandwidth (S11 ≤ −10 dB) of 3.2–4 GHz has been achieved for each antenna radiator. However, for S11 ≤ −6 dB, this value is 3–4.2 GHz. The proposed design provides the required radiation coverage of 5G smartphones. The performance of the proposed MIMO antenna design is examined using both simulation and experiment. High isolation, high efficiency and sufficient gain-level characteristics have been obtained for the proposed MIMO smartphone antenna. In addition, the calculated total active reflection coefficient (TARC) and envelope correlation coefficient (ECC) of the antenna elements are very low over the whole band of interest which verify the capability of the proposed multi-antenna systems for massive MIMO and diversity applications. Furthermore, the properties of the design in Data-mode/Talk-mode are investigated and presented.

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Multi-layer 5G mobile phone antenna for multi-user MIMO communications

Cited by 67 publications

References 5 publications

Design And Analysis of 5g Antennas For Mobile Applications

Design And Analysis of 5g Antennas For Mobile Applications

Ten switched‐beams with 2 × 2 series‐fed 2.4 GHz array antenna and a simple beam‐switching network

Mobile-Phone Antenna Array with Diamond-Ring Slot Elements for 5G Massive MIMO Systems

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