An innovative fractal monopole MIMO antenna for modern 5G applications

Ghadeer, Sabah Hassan; Kamal, Sharul; Alibakhshikenari, Mohammad; Virdee, Bal S.; Elwi, Taha A.; Iqbal, Amjad; Al‐Hasan, Muath

doi:10.1016/j.aeue.2022.154480

Cited by 31 publications

(24 citation statements)

References 29 publications

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“…In the patch, the proposed T‐stub effects can be included according to Al‐Khaylani et al 3 as an indicator–capacitor branch ( L t and C t ). Such assumption is considered to evaluate the influence of the surface current motion on the proposed T‐stub structure that creates an inductive effect and the charge building at the structure edges that is given by a capacitive effect 8 . The coupling between the proposed T‐stub and the proposed Hilbert fractal is described by a coupling capacitor ( C C ).…”

Section: Crlh Analysis and Performancementioning

confidence: 99%

“…The coupling between the proposed T‐stub and the proposed Hilbert fractal is described by a coupling capacitor ( C C ). Such coupling realizes the energy storage influence on the unit cell bandwidth 8 before being discharged in the proposed Hilbert fractal structure.…”

Section: Crlh Analysis and Performancementioning

confidence: 99%

Section: Crlh Analysis and Performancementioning

confidence: 99%

“…Then, the introduction of the proposed Hilbert part effects on the unit cell performance inductively and/or capacitively with a pure left‐hand combination 8 . However, the coupling effects with the surrounding structures and the effects of the material losses create a right‐hand branch that limit the proposed unit cell bandwidth 8 . Therefore, the authors considered in their analysis the effects of that by considering L HR , C HR , L HL , and C HL to mitigate the desired unit cell performance at a certain frequency band.…”

Section: Crlh Analysis and Performancementioning

confidence: 99%

“…Another research was developed in Alibakhshikenari et al 6 based on a CRLH metasurface with PIN diodes switches for gain control with Wi‐Fi bands. Also loaded array antenna with stub and varactor diodes capable of beam steering and frequency shifting is presented in Alibakhshikenari et al 7 An asymmetric coplanar waveguide (CPW) fed frequency reconfigurable antenna based on a composite right/left‐handed transmission line 8 . in addition, the polarization properties of the radiators can be switched between various linear polarizations, right‐hand circular polarization, left‐hand circular polarization, and any number of elliptical polarizations using polarization reconfigurable antennas 9,10 .…”

Section: Introductionmentioning

confidence: 99%

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Steerable composite right–left‐hand‐based printed antenna circuitry for 5G applications

Jwair

Elwi

2023

Micro & Optical Tech Letters

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In this article, the proposed antenna structure is designed for modern wireless communication systems. The antenna structure is consistent with 11-unit cells of composite right-left-hand (CRLH) inclusions mounted on an FR4 substrate.Therefore, the antenna size is miniaturized effectively to 30 × 20 mm 2 to cover the frequency bands around 2.45 GHz, for Wi-Fi, and 4.2-6 GHz, for sub-6 5G, networks. The design process is conducted on a circuit model and numerical simulations by evaluating the unit cell transmission phase spectra. For this, a comparison between the circuit model and the numerical simulations is invoked for validation. Such an antenna is found to provide a maximum gain of 6.2 dBi at 4.6 GHz. Next, 11 PIN diodes control the current motion between the antenna patch and the CRLH array. Therefore, PIN arrays are connected to the patch and the ground plane to maintain the surface current motion that realizes main lobe beam steering. The proposed antenna performance is simulated numerically using the CSTMWS software package. Then, it is fabricated and tested experimentally for validation. An excellent agreement is achieved between the simulated and measured results. Finally, it is found this antenna provides excellent beam steering −92°to 92°to suit many modern networks.

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Section: Crlh Analysis and Performancementioning

confidence: 99%

Section: Crlh Analysis and Performancementioning

confidence: 99%

Section: Crlh Analysis and Performancementioning

confidence: 99%

Section: Crlh Analysis and Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Steerable composite right–left‐hand‐based printed antenna circuitry for 5G applications

Jwair

Elwi

2023

Micro & Optical Tech Letters

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Design and performance analysis of 8‐port multi‐service quad‐band MIMO antenna for automotive communication

Arumugam,

Manoharan

2023

Int J Numerical Modelling

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In this paper, a low profile compact 8‐port multiband antenna with polarization diversity principle for automotive communication is proposed. The geometric of the proposed MIMO antenna is integrated with multiple stubs on substrate having a size of 0.94λg × 0.94λg. The proposed design resonates at multiple frequencies of 1.8, 2.4, 5.2, and 5.8 GHz, respectively for GSM, ISM bands and WLAN wireless services which covers the bandwidth of 2.8%, 5%, 5%, and 5.6%, respectively with S11 ≤ −10 dB. Besides, the measured results provide a peak gain of 4.3, 3.1, 4.5, and 4.2 dBi at 1.8, 2.4, 5.2, and 5.8 GHz, omni directional radiation pattern with more than 80% of efficiency in all operating bands. The MIMO structure provides a good isolation of greater than 20 dB without decoupling structure, envelope correlation coefficient of ≤0.1, diversity gain of ≥9.99 dB, mean effective gain of <1 dB, total active reflection coefficient ≤−10 dB, channel capacity loss of ≤0.25 bits/s/Hz. Finally, the housing effect of MIMO antenna is analyzed in the vehicular environment which provides good performance for Vehicular to Intravehicular communication.

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Reconfigurable CRLH‐inspired antenna based on Hilbert curve EBG structure for modern wireless systems

Ismail

Elwi

Salim

2023

Micro & Optical Tech Letters

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This paper presents a novel antenna design with an enhanced gain-bandwidth product for modern communication networks, including 5G systems. The design is consistent with 17 unit cells of a composite right/left-hand (CRLH) structure with an electromagnetic band gap of Hilbert inclusions. Therefore, the resulting design occupies an area of 40 × 200 mm 2 of a Taconic RF-43 substrate. The maximum antenna gain is 16 dBi at 5.5 GHz, which is very applicable for long-range communication systems. Nevertheless, the antenna performance is controlled with optical switches of light-dependent resistors (LDR) technology. Therefore, the antenna performance is tested with different switching seniors to investigate the possibility of reconfiguration scenarios at various frequency bands. However, the antenna gain is highly affected by changing LDR switching status; for example, at 5.5 GHz, the antenna gain is varied between 7 and 16 dBi. Thus, the proposed antenna is an excellent candidate for direct amplitude modulation. Finally, the antenna simulation results and measurements agree very well with each other.

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An innovative fractal monopole MIMO antenna for modern 5G applications

Cited by 31 publications

References 29 publications

Steerable composite right–left‐hand‐based printed antenna circuitry for 5G applications

Steerable composite right–left‐hand‐based printed antenna circuitry for 5G applications

Design and performance analysis of 8‐port multi‐service quad‐band MIMO antenna for automotive communication

Reconfigurable CRLH‐inspired antenna based on Hilbert curve EBG structure for modern wireless systems

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