Novel Dual-Band 28/38 GHZ Mimo Antennas for 5g Mobile Applications

Marzouk, Hala M.; Ahmed, Mohamed I.; Shaalan, Abdel Hamied Abdel Meneam

doi:10.2528/pierc19032303

Cited by 139 publications

(72 citation statements)

References 17 publications

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“…They have also been studied in several research categories [24]. The 28 GHz and 38 GHz are currently the most recommended band for the 5G system [25][26][27][28][29][30][31][32]. Meanwhile, other higher mm-wave bands of up to 120 GHz are recommended for the 6G system [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Key Challenges, Drivers and Solutions for Mobility Management in 5G Networks: A Survey

et al. 2020

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Ensuring a seamless connection during the mobility of various User Equipment (UE) will be one of the major challenges facing the practical implementation of the Fifth Generation (5G) networks and beyond. Several key determinants will significantly contribute to numerous mobility challenges. One of the most important determinants is the use of millimeter waves (mm-waves) as it is characterized by high path loss. The inclusion of various types of small coverage Base Stations (BSs), such as Picocell, Femtocell and drone-based BSs is another challenge. Other issues include the use of Dual Connectivity (DC), Carrier Aggregation (CA), the massive growth of mobiles connections, network diversity, the emergence of connected drones (as BS or UE), ultra-dense network, inefficient optimization processes, central optimization operation, partial optimization, complex relation in optimization operations, and the use of inefficient handover decision algorithms. The relationship between these processes and diverse wireless technologies can cause growing concerns in relation to handover associated with mobility. The risk becomes critical with high mobility speed scenarios. Therefore, mobility issues and their determinants must be efficiently addressed. This paper aims to provide an overview of mobility management in 5G networks. The work examines key factors that will significantly contribute to the increase of mobility issues. Furthermore, the innovative, advanced, efficient, and smart handover techniques that have been introduced in 5G networks are discussed. The study also highlights the main challenges facing UEs' mobility as well as future research directions on mobility management in 5G networks and beyond.

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Section: Introductionmentioning

confidence: 99%

Key Challenges, Drivers and Solutions for Mobility Management in 5G Networks: A Survey

et al. 2020

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“…In [8], a 28-GHz four-port MIMO antenna is proposed, where each antenna has an end-fire gain to provide pattern and polarization diversities. The work of [9] introduces a compact microstrip line fed dual-band printed four-port MIMO antennas resonating at 28 GHz and 38 GHz to provide spatial diversity. In [10], a compact dual-band (38/60 GHz) microstrip patch antenna is proposed for 5G mobile handsets.…”

Section: Introductionmentioning

confidence: 99%

Compact-Size Quad-Band Patch and Mimo Antenna System for 5g Mobile Handsets

Abo-Elhassan¹,

Farahat²,

Hussein³

2021

PIER C

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A compact-size quad-band (28/45/51/56 GHz) microstrip patch antenna is proposed for the Fifth Generation (5G) mobile handsets. The present paper introduces a new method to reduce the size of a 28-GHz rhombic patch antenna so as to properly operate at the higher frequency bands (45/51/56 GHz) without negative effects on the antenna characteristics at 28 GHz. A novel design is introduced for the quad-band patch antenna to include complicated radiation mechanisms required for multiple-band operation. The proposed (single-element) antenna is constructed as primary and secondary patches which are capacitively coupled and designed to realize impedance matching and to produce appropriate radiation patterns in the four frequency bands. Two-port and four-port MIMO antenna systems that employ the quad-band patch antenna are proposed in the present work for the 5G mobile handsets. Numerical and experimental investigations are achieved to assess the performance of both the single-element antenna and proposed MIMO antenna systems including the return loss at each antenna port and the coupling coefficients between different ports. It is shown that the simulation results agree with the experimental measurements, and both show good performance. The bandwidths achieved around 28, 45, 51, and 56 GHz are about 0.6, 2.0, 1.8, and 1.3 GHz, respectively. The radiation patterns produced when each port is excited alone are shown to be suitable for spatial diversity scheme with high radiation efficiency. It is shown that the envelope correlation coefficient (ECC) and diversity gain (DG) are perfect over the four frequency bands.

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“…ere are many works in the literature concerning this topic for low frequencies, such as [6][7][8][9]. However, we can find plenty of papers for high frequencies [10][11][12][13][14][15][16][17][18][19][20][21][22]. In this work, we chose the millimeter waves band, precisely 28 GHz, for several reasons.…”

Section: Introductionmentioning

confidence: 99%

High Isolation and Ideal Correlation Using Spatial Diversity in a Compact MIMO Antenna for Fifth-Generation Applications

Hadri

Zakriti

Zugari

et al. 2020

International Journal of Antennas and Propagation

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This paper presents a compact Multiple Input Multiple Output antenna with high isolation and low envelope correlation (ECC) for fifth-generation applications using spatial diversity technique. The proposed MIMO antenna consists of two single antennas, each having size of 13 × 12.8 mm2, symmetrically arranged next to each other. The single and MIMO antennas are simulated and analyzed. To verify the simulated results, the prototype antennas were fabricated and measured. A good agreement between measurements and simulations is obtained. The proposed antenna covers the 28 GHz band (27.5–28.35 GHz) allocated by the FCC for 5G applications. Moreover, the isolation is more than 35 dB and the ECC is less than 0.0004 at the operating band, which means that the mutual coupling between the two elements is negligible. The MIMO parameters, such as diversity gain (DG), total active reflection coefficient (TARC), realized gain, and efficiency, are also studied. Thus, the results demonstrate that our antenna is suitable for 5G MIMO applications.

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Novel Dual-Band 28/38 GHZ Mimo Antennas for 5g Mobile Applications

Cited by 139 publications

References 17 publications

Key Challenges, Drivers and Solutions for Mobility Management in 5G Networks: A Survey

Key Challenges, Drivers and Solutions for Mobility Management in 5G Networks: A Survey

Compact-Size Quad-Band Patch and Mimo Antenna System for 5g Mobile Handsets

High Isolation and Ideal Correlation Using Spatial Diversity in a Compact MIMO Antenna for Fifth-Generation Applications

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