Metamaterial‐based highly isolated MIMO antenna system for 5G smartphone application

Din, Iftikhar Ud; Ullah, Sadiq; Mufti, Naveed; Ullah, Rizwan; Kamal, Babar; Ullah, Raza

doi:10.1002/dac.5392

Cited by 14 publications

(2 citation statements)

References 42 publications

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“…In [9], the paper introduced a compact eightelement MIMO antenna array with miniaturized loop elements, boasting a low profile and high isolation of -20 dB between elements without auxiliary isolation techniques. In [10], A low-profile two-port MIMO setup is proposed for 5G mm-wave applications at 28 GHz. Initially, a rectangular slot in the ground plane and circular cuts at the radiating patch's borders are used to create a single antenna element.…”

Section: Introductionmentioning

confidence: 99%

High-performance MTM inspired two-port MIMO antenna structure for 5G/IoT applications

Hamdan,

Hamad,

Mohamed

et al. 2024

Journal of Electrical Engineering

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This study thoroughly investigates a two-port multiple-input multiple-output (MIMO) antenna system tailored for 5G operation at 28 GHz. The proposed antenna is patched on a Rogers (RT5880) substrate with a relative permittivity of 2.2 and total size of 20×12×0.508 mm3. The mutual relationship between the radiating patches is refined using an H-shaped metamaterial structure to reduce the isolation to –55 dB. A MIMO configuration with attractive features is employed to reduce the envelope correlation coefficient (ECC) to about 0.00062 and the channel capacity loss (CCL) to about 0.006 bits/sec/Hz, while magnify the gain to about 9.39 dBi and the diversity gain (DG) to about 9.995. Additionally, it boasts a compact size with stable radiation pattern. The simulations of the MIMO antenna are executed using CST microwave studio, subsequently validated with Advanced Design System (ADS) for an equivalent circuit model, then measured using Vector Network Analyzer. Discrepancies between measured and simulated results were analyzed, with observed variations attributed to cable losses and manufacturing tolerances. Despite these challenges, a comprehensive comparison with prior research highlights the notable advantages of the proposed design, positioning it as a compelling solution for 5G applications.

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Section: Introductionmentioning

confidence: 99%

High-performance MTM inspired two-port MIMO antenna structure for 5G/IoT applications

Hamdan,

Hamad,

Mohamed

et al. 2024

Journal of Electrical Engineering

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show abstract

“…The maximum gain of the MIMO antenna is limited to 6.22 dBi. Described in [ 18 ] is a two-element MIMO antenna for millimeter-wave applications at 28 GHz. The MIMO elements are arranged parallel to each other and placed between the elements is a metamaterial slab, which is shown to improve inter element isolation by 64 dB at 28 GHz.…”

Section: Introductionmentioning

confidence: 99%

Frequency-Selective Surface-Based MIMO Antenna Array for 5G Millimeter-Wave Applications

Din

Alibakhshikenari

Virdee

et al. 2023

Sensors

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In this paper, a radiating element consisting of a modified circular patch is proposed for MIMO arrays for 5G millimeter-wave applications. The radiating elements in the proposed 2 × 2 MIMO antenna array are orthogonally configured relative to each other to mitigate mutual coupling that would otherwise degrade the performance of the MIMO system. The MIMO array was fabricated on Rogers RT/Duroid high-frequency substrate with a dielectric constant of 2.2, a thickness of 0.8 mm, and a loss tangent of 0.0009. The individual antenna in the array has a measured impedance bandwidth of 1.6 GHz from 27.25 to 28.85 GHz for S11 ≤ −10 dB, and the MIMO array has a gain of 7.2 dBi at 28 GHz with inter radiator isolation greater than 26 dB. The gain of the MIMO array was increased by introducing frequency-selective surface (FSS) consisting of 7 × 7 array of unit cells comprising rectangular C-shaped resonators, with one embedded inside the other with a central crisscross slotted patch. With the FSS, the gain of the MIMO array increased to 8.6 dBi at 28 GHz. The radiation from the array is directional and perpendicular to the plain of the MIMO array. Owing to the low coupling between the radiating elements in the MIMO array, its Envelope Correlation Coefficient (ECC) is less than 0.002, and its diversity gain (DG) is better than 9.99 dB in the 5G operating band centered at 28 GHz between 26.5 GHz and 29.5 GHz.

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High-Isolation Array Antenna Design for 5G mm-Wave MIMO Applications

Abbasi,

Virdee,

Din

et al. 2024

J Infrared Milli Terahz Waves

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A low form-factor design of an eight-element antenna array is presented for 5G mm-wave MIMO applications. The design features modified circular patch radiators that achieve an impedance bandwidth of 2.6 GHz, covering frequencies from 37.7 to 40.3 GHz. The radiating elements are strategically arranged on opposite sides of a common substrate and interleaved to significantly reduce mutual coupling between adjacent elements. This innovative technique effectively minimizes coupling between the array’s radiators without the need of a decoupling structure. The MIMO antenna is fabricated on a low-loss Rogers-5880 substrate, with a thickness of 0.8 mm, a dielectric constant of 2.2, and a loss tangent of 0.0009, ensuring minimal signal loss and confirming the accuracy of simulation results. The inter-element isolation exceeds 25 dB, and the array provides a gain greater than 6 dBi, with a peak gain of 7.5 dBi at 39 GHz. This high gain enhances the antenna’s ability to mitigate atmospheric attenuation at higher frequencies, making it highly suitable for 5G mm-wave applications.

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Metamaterial‐based highly isolated MIMO antenna system for 5G smartphone application

Cited by 14 publications

References 42 publications

High-performance MTM inspired two-port MIMO antenna structure for 5G/IoT applications

High-performance MTM inspired two-port MIMO antenna structure for 5G/IoT applications

Frequency-Selective Surface-Based MIMO Antenna Array for 5G Millimeter-Wave Applications

High-Isolation Array Antenna Design for 5G mm-Wave MIMO Applications

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