Compact Wideband Four Element Optically Transparent MIMO Antenna for mm-Wave 5G Applications

Desai, Arpan; Bui, Cong Danh; Patel, Jay; Upadhyaya, Trushit; Byun, Gangil; Nguyen, Truong Khang

doi:10.1109/access.2020.3033314

Cited by 98 publications

(59 citation statements)

References 37 publications

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“…The MIMO diversity performance is analyzed in terms of ECC, MEG, TARC, DG, and CCL, where it is ensured that the proposed antenna meets the diversity requirements recommended in [29][30][31][32].…”

Section: Mimo Diversity Analysismentioning

confidence: 99%

Transparent 2-Element 5G MIMO Antenna for Sub-6 GHz Applications

et al. 2022

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A dual-port transparent multiple-input multiple-output (MIMO) antenna resonating at sub-6 GHz 5G band is proposed by using patch/ground material as transparent conductive oxide (AgHT-8) and a transparent Plexiglas substrate. Two identical circular-shaped radiating elements fed by using a microstrip feedline are designed using the finite element method (FEM) based high-frequency structure simulator (HFSS) software. The effect of the isolation mechanism is discussed using two cases. In case 1, the two horizontally positioned elements are oriented in a similar direction with a separate ground plane, whereas in case 2, the elements are vertically placed facing opposite to each other with an allied ground. In both cases, the transparent antennas span over a −10 dB band of 4.65 to 4.97 GHz (300 MHz) with isolation greater than 15 dB among two elements. The diversity parameters are also analyzed for both the cases covering the correlation coefficient (ECC), mean effective gain (MEG), diversity gain (DG), and channel capacity loss (CCL). The average gain and efficiency above 1 dBi and 45%, respectively with satisfactory MIMO diversity performance, makes the transparent MIMO antenna an appropriate choice for smart IoT devices working in the sub-6 GHz 5G band by mitigating the co-site location and visual clutter issues.

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Section: Mimo Diversity Analysismentioning

confidence: 99%

Transparent 2-Element 5G MIMO Antenna for Sub-6 GHz Applications

et al. 2022

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“…For a good diversity performance, the MEG ratio (MEG1/MEG2) should be within the limit of ±3 dB [38]. Fig.…”

Section: A Antenna Fabrication and Measurementmentioning

confidence: 99%

A Modified SWB Hexagonal Fractal Spatial Diversity Antenna With High Isolation Using Meander Line Approach

Chaudhary

Manohar

2022

IEEE Access

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This manuscript introduces a novel miniaturized super wideband (SWB) hexagonal fractal spatial diversity 2-element multiple-input-multiple-output (MIMO) antenna for broadband applications, as a compact wideband antenna is required for military radio and space communication devices. The designed antenna includes two hexagonal (1 st modified Koch iteration) Koch fractal radiators with two linear tapered feedlines (TLTF) and a step tapered slotted ground plane (STSGP) that provides the broad impedance characteristic with miniaturized size in the operating band of 1.78-30 GHz. Moreover, the STSGP is also accountable for enabling the isolation (S 12/21 ) better than 10 dB. To further meet the isolation higher than 22 dB, a meander line is protruded from the ground plane while maintaining a 6 mm edge-to-edge distance between two antenna elements. Typically, the MIMO antenna with high isolation is beneficial for highspeed data transmission. The experimental outcomes represent that the proposed MIMO antenna is with the advantages of reasonably good diversity gain (nearly 10 dB), stable radiation patterns, high peak gain (almost 6.6 dBi), and moderate radiation efficiency (around 85%) across -10 dB impedance bandwidth. The total active reflection coefficient (TARC) and envelop correlation coefficient (ECC) are less than -25 dB and 0.1 respectively. Due to all these attributes, the proposed 2-element MIMO antenna array can be a potential candidate for military radio, spectrum sensing for cognitive radio, and space communication applications.

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“…The transparent substrate material has also been exploited while designing antennas. The optically transparent substrate MIMO antenna has been proposed for millimeter-wave application [17] for 25-35 GHz frequency spectrum. The proposed antenna has simple geometry with bandwidth of around 11 GHz; however, the gain of the antenna is relatively lower as the MIMO antenna have their gains above 7 dBi.…”

Section: Introductionmentioning

confidence: 99%

Design and Characterization of Compact Broadband Antenna and Its MIMO Configuration for 28 GHz 5G Applications

et al. 2022

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This paper presents the design and characterization of a compact broadband antenna and its MIMO configuration for 28 GHz 5G applications. The antenna was designed using Rogers RT/5880 with a thickness of 1.575 mm and has an overall compact size of 30 mm × 30 mm. The design methodology was initiated by designing a compact conventional microstrip antenna for 28 GHz. Afterward, the rectangular slots were utilized to improve the impedance bandwidth so that antenna covers the globally allocated 28 GHz band spectrum for 5G applications. Furthermore, a compact 2 × 2 MIMO antenna with polarization diversity is designed for high channel capacity systems. The mutual coupling between the closely spaced antenna elements is reduced by using two consecutive iterations of defected ground structure (DGS). The proposed MIMO antenna system offers broad bandwidth, high gain, low mutual coupling, and low envelope correlation coefficient along with high diversity gain, low mean effective gain, and low channel capacity loss. Moreover, the proposed been compared with the state-of-the-art MIMO antenna proposed for 28 GHz application to demonstrate worth of the presented design.

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Compact Wideband Four Element Optically Transparent MIMO Antenna for mm-Wave 5G Applications

Cited by 98 publications

References 37 publications

Transparent 2-Element 5G MIMO Antenna for Sub-6 GHz Applications

Transparent 2-Element 5G MIMO Antenna for Sub-6 GHz Applications

A Modified SWB Hexagonal Fractal Spatial Diversity Antenna With High Isolation Using Meander Line Approach

Design and Characterization of Compact Broadband Antenna and Its MIMO Configuration for 28 GHz 5G Applications

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