Eight-Port millimeter wave MIMO antenna loaded with novel frequency selective surface for higher data rate transmission.

PAPER pubmed PloS one 2026 Engineering / measurement Effect: unclear Evidence: Insufficient

Read original paper → DOI: 10.1371/journal.pone.0341823 PMID: 41628194 Evidence Lab

Abstract

In this research, an eight-port multiple-input-multiple-output (MIMO) antenna integrated with frequency frequency-selective surface (FSS) is presented for 28.0 GHz millimeter-wave (n257/n261) bands. The radiating patch consists of a circular-ring shape with a plus-shaped stub embedded in it. The antenna element is fed by a 50 Ω microstrip feed line and a quarter-wave transformer as a matching network. The MIMO antenna measures 50 mm × 50 mm and achieves spatial diversity through an orthogonal arrangement of eight radiating elements. A 10 × 10 array of FSS is also designed at 28.0 GHz and measures 60 mm × 60 mm. The FSS structure is intended for a band-stop filter and consists of a circular ring with a plus-shaped stub. The proposed MIMO antenna has a peak realized gain of 13.89 dBi and features directional 2-D radiation patterns. The specific absorption rate analysis is also performed, resulting in a value of 0.0274 W/kg at 28.0 GHz.

AI evidence extraction

At a glance

Study type

Engineering / measurement

Effect direction

unclear

Population

—

Sample size

—

Exposure

mmWave · 28000 MHz · 0.0274 W/kg

Evidence strength

Insufficient

Confidence: 74% · Peer-reviewed: yes

Main findings

An eight-port 28.0 GHz mmWave MIMO antenna integrated with a 10×10 frequency-selective surface (FSS) is presented, reporting a peak realized gain of 13.89 dBi with directional 2-D radiation patterns. SAR analysis at 28.0 GHz is reported as 0.0274 W/kg.

Outcomes measured

Antenna performance (gain, radiation pattern)
Specific absorption rate (SAR)

Suggested hubs

5g-policy (0.35)
Study concerns 28 GHz mmWave bands (n257/n261) used for 5G-related applications.

View raw extracted JSON

{
    "study_type": "engineering",
    "exposure": {
        "band": "mmWave",
        "source": null,
        "frequency_mhz": 28000,
        "sar_wkg": 0.027400000000000000743849426498854882083833217620849609375,
        "duration": null
    },
    "population": null,
    "sample_size": null,
    "outcomes": [
        "Antenna performance (gain, radiation pattern)",
        "Specific absorption rate (SAR)"
    ],
    "main_findings": "An eight-port 28.0 GHz mmWave MIMO antenna integrated with a 10×10 frequency-selective surface (FSS) is presented, reporting a peak realized gain of 13.89 dBi with directional 2-D radiation patterns. SAR analysis at 28.0 GHz is reported as 0.0274 W/kg.",
    "effect_direction": "unclear",
    "limitations": [],
    "evidence_strength": "insufficient",
    "confidence": 0.7399999999999999911182158029987476766109466552734375,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "millimeter-wave",
        "28 GHz",
        "n257",
        "n261",
        "MIMO antenna",
        "frequency selective surface",
        "FSS",
        "band-stop filter",
        "realized gain",
        "radiation pattern",
        "SAR"
    ],
    "suggested_hubs": [
        {
            "slug": "5g-policy",
            "weight": 0.34999999999999997779553950749686919152736663818359375,
            "reason": "Study concerns 28 GHz mmWave bands (n257/n261) used for 5G-related applications."
        }
    ]
}

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AI-extracted fields are generated from the abstract/metadata and may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.

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