Nature Inspired MIMO Antenna System for Future mmWave Technologies

Rahman, Saifur; Ren, Xingang; Altaf, Ahsan; Irfan, Muhammad; Abdullah, Mujeeb; Muhammad, Fazal; Anjum, Muhammad Rizwan; Mursal, Salim Nasar Faraj; Alkahtani, Fahad

doi:10.3390/mi11121083

Cited by 43 publications

(41 citation statements)

References 29 publications

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“…A four-port antenna system is presented in [5] with conical rings for e antenna elements are well isolated offering pattern diversity characteristics, but the gain of the MIMO system is very low. Similarly, a natureinspired four-element MIMO antenna in [6] offers pattern and spatial diversity characteristics, but the bandwidth of the antenna is very low. Substrate integrated waveguides (SIW) are known to have negligible line losses.…”

Section: Introductionmentioning

confidence: 99%

Square-Framed T Shape mmwave Antenna Array at 28 GHz for Future 5G Devices

Kiani

Ren

Bashir

et al. 2021

International Journal of Antennas and Propagation

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In this research, a novel T shape antenna is proposed for millimetre-wave (mmwave) 5G systems. Designed on 0.254 mm thin Roggers 5880 substrate with a dielectric constant of 2.3 and the loss tangent of 0.0009, the proposed antenna offers a wideband characteristics of nearly 8 GHz with gain of 4.25 dBi for single element. Based on these characteristics, the single element is further constructed into a four-element linear array with a compact size of 18.5 × 24 mm2 The proposed antenna array exhibited dual beam radiation patterns with a high realized gain of 11.5 dBi and 94% efficiency. The measured results from the fabricated prototype well agree with the simulated results and thus, therefore, make the proposed antenna system a well-suited candidate for future mmwave devices.

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Section: Introductionmentioning

confidence: 99%

Square-Framed T Shape mmwave Antenna Array at 28 GHz for Future 5G Devices

Kiani

Ren

Bashir

et al. 2021

International Journal of Antennas and Propagation

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“…The measured and simulated results are nearly alike. The minimum measured isolation that was achieved was 23 dB, and the slight disagreement in the S-parameters can be attributed to the cable and measurement set up losses [33]. The return loss from Antenna 1 and Antenna 3 covers the desired resonance frequency ranges from 4.55 to 4.9 GHz based on −6 dB criteria.…”

Section: Resultsmentioning

confidence: 99%

“…Studying surface currents helps for knowing the electric current flowing at a particular point in a conductor. Generally, to understand the influence of the coupling between the antenna elements while using this approach, one of the four ports should be excited while the other three ports remain terminated with a 50 Ω load, as suggested by [33].…”

Section: Surface Currentsmentioning

confidence: 99%

Four-Port MIMO Antenna System for 5G n79 Band RF Devices

et al. 2021

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In this article, a compact four-port MIMO antenna system resonating from 4.7–5.1 GHz on −6 dB criteria is discussed. The proposed antennas are arranged in a perpendicular manner providing diversity with good isolation characteristics. The proposed antenna was fabricated and designed on a commercially available low-cost FR-4 substrate with a relative permittivity of 4.4. The total size of the antenna is 40 × 40 mm2, and a minimum isolation of 25 dB was observed at most nearby resonating elements. The proposed antenna was fabricated and tested at an in-house facility, and the measured results agree well with the simulations. The MIMO antenna characteristics, such as the envelope correlation coefficient (ECC) among any two radiating elements, have been found to be less than 0.1, and the diversity gain (DG) value evaluated showed that the proposed antenna is well designed. Furthermore, the SAR analysis showed that the desired antenna system is safe for users, with a value of 0.94 W/Kg. The channel capacity (cc) was found to be 18.7 bps/Hz, approximately 2.7 times more than SISO systems. Through its robust and reliable performance and its peak gain of 2.8 dBi, the proposed compact antenna is a good candidate for future 5G devices.

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“…2 summarizes the dimensional parameters of the proposed antenna. The theory of the Transmission Line Model (TLM) is used to deduce the effective resonant lengths for the intended [36]. The proposed resonant length is written in terms of guided wavelength λ fr by using Eq.…”

Section: Antenna Geometrymentioning

confidence: 99%

Th-Shaped Tunable Multi-Band Antenna for Modern Wireless Applications

Khan¹,

Khan²,

Irfan³

et al. 2023

Computers, Materials &Amp; Continua

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A compact, reconfigurable antenna supporting multiple wireless services with a minimum number of switches is found lacking in literature and the same became the focus and outcome of this work. It was achieved by designing a Th-Shaped frequency reconfigurable multi-band microstrip planar antenna, based on use of a single switch within the radiating structure of the antenna. Three frequency bands (i.e., 2007(i.e., -2501 MHz and 9341-1046 MHz) can be operated with the switch in the ON switch state. In the OFF state of the switch, the antenna operates within the 2577-3280 MHz and 9379-1033 MHz Bands. The proposed antenna shows an acceptable input impedance match with Voltage Standing Wave Ratio (VSWR) less than 1.2. The peak radiation efficiency of the antenna is 82%. A reasonable gain is obtained from 1.22 to 3.31 dB within the operating bands is achieved. The proposed antenna supports Universal Mobile Telecommunication System (UMTS)-1920 to 2170 MHz, Worldwide Interoperability and Microwave Access (WiMAX)/Wireless Broadband/(Long Term Evolution) LTE2500-2500 to 2690 MHz, Fifth Generation (5G)-2500/3500 MHz, Wireless Fidelity (Wi-Fi)/ Bluetooth-2400 to 2480 MHz, and Satellite communication applications in X-Band-8000 to 12000 MHz. The overall planar dimension of the proposed antenna is 40 × 20 mm 2 . The antenna was designed, along with the parametric study, using Electromagnetic (EM) simulation tool. The antenna prototype is fabricated for experimental validation with the simulated results. The proposed antenna is low profile, tunable, lightweight, cheap to fabricate and highly efficient and hence is deemed suitable for use in modern wireless communication electronic devices.

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Nature Inspired MIMO Antenna System for Future mmWave Technologies

Cited by 43 publications

References 29 publications

Square-Framed T Shape mmwave Antenna Array at 28 GHz for Future 5G Devices

Square-Framed T Shape mmwave Antenna Array at 28 GHz for Future 5G Devices

Four-Port MIMO Antenna System for 5G n79 Band RF Devices

Th-Shaped Tunable Multi-Band Antenna for Modern Wireless Applications

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