Single‐fed 4G/5G multiband 2.4/5.5/28 GHz antenna

Yassin, Mohammed E.; Mohamed, Hesham A.; Abdallah, Esmat A.; El‐Hennawy, Hadia

doi:10.1049/iet-map.2018.5122

Cited by 52 publications

(41 citation statements)

References 17 publications

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“…Various methods have been studied to obtain multiband enhancement, including slot-loaded technologies [3][4][5], coupling feed technologies [6,7], loading the matching network [8], and fractal technologies [9]. e desired resonant frequency band is produced by controlling the current path and resonant mode of the antenna radiator.…”

Section: Introductionmentioning

confidence: 99%

A Novel Dual-Band Binary Branch Fractal Bionic Antenna for Mobile Terminals

Ran

Xie³

et al. 2020

International Journal of Antennas and Propagation

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A novel two-iteration binary tree fractal bionic structure antenna is proposed for the third generation (3G), fourth generation (4G), WLAN, and Bluetooth wireless applications in the paper, which is based on the principles of conventional microstrip monopole antenna and resonant coupling technique, combined with the advantages of fractal geometry. A new fractal structure was presented for antenna radiator, similar to the tree in nature. The proposed antenna adapted two iterations on a fractal structure radiator, which covers mobile applications in two broad frequency bands with a bandwidth of 44.2% (1.85–2.9 GHz) for TD-SCDMA, WCDMA, CDMA2000, LTE33-41, and Bluetooth frequency bands, and 11.5% (4.9–5.5 GHz) for WLAN frequency band. The proposed antenna was fabricated on a G10/FR4 substrate with a dielectric constant of 4.4 and a size of 50 × 40 mm2. The good agreement between the measurement results and the simulation results validate that the proposed design approach meet the requirements for various wireless applications.

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Section: Introductionmentioning

confidence: 99%

A Novel Dual-Band Binary Branch Fractal Bionic Antenna for Mobile Terminals

Ran

Xie³

et al. 2020

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

show abstract

“…To cover the sub-6-GHz and mm-wave bands, antennas with multiband capability and a large frequency ratio are of great importance for future 5G applications [7]. Significant research efforts have been made to design antennas for sub-6-GHz 5G communication [8]- [16]; further, several compact-sized mm-wave antennas have been proposed [17]- [19]. Most reported studies used separate antennas for the corresponding frequency bands.…”

Section: Introductionmentioning

confidence: 99%

Integration of Sub-6-GHz and mm-Wave Bands With a Large Frequency Ratio for Future 5G MIMO Applications

2021

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The integration of sub-6-GHz and millimeter-wave (mm-wave) bands has become an important issue for future fifth generation (5G) wireless communications owing to their large frequency ratios. This paper proposes a compact-size dual-function antenna operating at 3.5 GHz and the mm-wave band (28 GHz) for 5G mobile applications using a frequency reconfigurability technique. The proposed antenna comprises a microstrip patch linked with a meandered radiating structure through a radio frequency PIN diode to achieve frequency reconfigurability between the two bands. A significant size reduction up to 15.3 mm × 7.2 mm × 0.508 mm for the proposed antenna was achieved using a meandered line structure and truncated ground plane. To enhance the functionality, 8 × 8 multiple-input multiple-output (MIMO) with possible long-and short-edge antenna placement configurations were demonstrated. The system exhibited satisfactory MIMO characteristics with wide decoupling −10 dB bandwidths of 7.4% and 4.8% at the low-and high-frequency bands, respectively, without utilizing any external decoupling structure. The simulated results were validated using fabricated prototypes, and good agreement was observed. Additionally, a safety analysis based on the specific absorption rate and power density at the prescribed frequency bands was conducted using a realistic human model, and the results were found to be in accordance with the safety guidelines. Owing to the integration of sub-6-GHz and mm-wave bands in a single compact structure with a large frequency ratio and good MIMO performance, the proposed antenna system is suitable for future 5G mobile handheld devices.

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“…There are different bands such as sub 3 GHz, sub 6 GHz and millimeter bands that are recommended for 5G applications. But many of researchers selected the millimeter bands because the low frequency bands are crowded and overloaded by different applications, therefore the low frequencies can't meet the required broadband of the 5G [1], [5]- [15]. The range from 28 GHz to 38 GHz is highly recommended [16].…”

Section: Introductionmentioning

confidence: 99%

Metasurface-Based Dual Polarized MIMO Antenna for 5G Smartphones Using CMA

et al. 2020

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This paper exhibits a low profile dual-polarized MIMO antenna with high isolation to meet the requirements of 5G smartphones. The integration between a vertically polarized slot and a horizontally polarized slot is investigated and applied for 28 GHz dual-polarized smartphone antenna. The antenna is combined with metasurface (MTS) to achieve high gain and more directivity. In order to design the metasurface, the characteristic mode analysis is used to investigate the performance of MTS at 28 GHz. The proposed antenna achieves high isolation coefficients better than 40 dB and cross polarization lower than-40 dB from simulated and measured results. The isolation between elements is achieved without any additional decoupling techniques. The proposed MTS slot antenna operates with 4 GHz bandwidth (26-30 GHz) with a realized gain of 11 dBi and efficiency of 90%. Four antennas (with eight ports) are positioned orthogonally at the corners of the mobile PCB to serve MIMO for 5G applications. The effect of MIMO antenna on the human is taken into consideration in power density term. Furthermore, the housing and components of smartphones are taken into our consideration in this paper. INDEX TERMS Dual polarized, MIMO, 5G, metasurface, characteristic mode analysis, and mobile handset antenna.

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Single‐fed 4G/5G multiband 2.4/5.5/28 GHz antenna

Cited by 52 publications

References 17 publications

A Novel Dual-Band Binary Branch Fractal Bionic Antenna for Mobile Terminals

A Novel Dual-Band Binary Branch Fractal Bionic Antenna for Mobile Terminals

Integration of Sub-6-GHz and mm-Wave Bands With a Large Frequency Ratio for Future 5G MIMO Applications

Metasurface-Based Dual Polarized MIMO Antenna for 5G Smartphones Using CMA

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