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A Compact MIMO Multiband Antenna for 5G/WLAN/WIFI-6 Devices.

Ayyaz Ali1, Mehr E Munir2,3, Mohamed Marey2

  • 1Department of Electrical Engineering, Military College of Signals, National University of Sciences and Technology, Islamabad 44000, Pakistan.

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Summary
This summary is machine-generated.

This study introduces a compact, high-isolation multiband antenna for 5G cellular, 5G WiFi, and WiFi-6 applications. The miniaturized design achieves excellent performance without decoupling, ideal for modern wireless devices.

Keywords:
5GMIMO antennaWIFI-6multiband

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Area of Science:

  • Electromagnetics and Antenna Design
  • Wireless Communication Systems
  • Microwave Engineering

Background:

  • The increasing demand for high-speed wireless communication necessitates advanced antenna solutions.
  • Existing antenna designs often struggle to meet the size, performance, and isolation requirements for multiple frequency bands.

Purpose of the Study:

  • To design and validate a compact, high-isolation multiband antenna for 5G cellular (3.50 GHz), 5G WiFi (5.50 GHz), and WiFi-6 (6.50 GHz) applications.
  • To achieve miniaturization without compromising antenna performance and inter-element isolation.

Main Methods:

  • A two-element Multiple-Input Multiple-Output (MIMO) multiband antenna was designed and fabricated on FR-4 substrate.
  • Simulations were performed using CST Studio Suite 2020.
  • Key performance metrics including gain, efficiency, Envelope Correlation Coefficient (ECC), Diversity Gain (DG), Total Active Reflection Coefficient (TARC), and Channel Capacity Loss (CCL) were evaluated.

Main Results:

  • The miniaturized antenna (16 × 28 × 1.6 mm³) achieved high isolation (>15 dB) without a decoupling scheme.
  • Peak gain reached 3.49 dBi with approximately 80% efficiency across the operating bands.
  • Excellent diversity performance was confirmed with ECC < 0.04, DG > 9.50, TARC < -10 dB, and CCL < 0.4 bits/s/Hz.

Conclusions:

  • The proposed compact MIMO multiband antenna meets the stringent requirements for 5G and WiFi-6 applications.
  • The design offers a viable solution for space-constrained wireless devices requiring high performance and isolation.