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Related Experiment Video

Updated: Aug 7, 2025

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band
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An efficient antenna system with improved radiation for multi-standard/multi-mode 5G cellular communications.

Naser Ojaroudi Parchin1, Heba G Mohamed2, Karim H Moussa3

  • 1School of Computing, Engineering and the Built Environment, Edinburgh Napier University, Edinburgh, EH10 5DT, UK.

Scientific Reports
|March 14, 2023
PubMed
Summary

This study presents a novel multi-input multiple-output (MIMO) antenna system for 5G devices. The design uses miniaturized self-complementary antennas (SCAs) to enhance radiation diversity and performance in multi-standard communications.

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Area of Science:

  • Electrical Engineering
  • Antenna Theory and Design
  • Wireless Communications

Background:

  • Modern 5G communication systems require advanced antenna solutions for multi-standard and multi-mode operation.
  • Existing smartphone antenna designs often face challenges in achieving sufficient radiation diversity and isolation.
  • The sub-6 GHz spectrum is a key band for 5G, necessitating efficient antenna designs operating within this range.

Purpose of the Study:

  • To introduce and validate a novel multi-input multiple-output (MIMO) antenna array system for 5G applications.
  • To enhance radiation diversity and improve performance for multi-standard/multi-mode 5G communications.
  • To develop a compact, dual-polarized antenna solution suitable for integration into smartphone platforms.

Main Methods:

  • Design and implementation of a MIMO antenna array featuring four pairs of miniaturized self-complementary antennas (SCAs).
  • Symmetrical placement of independently coupled feed structures on the smartphone mainboard edges.
  • Experimental measurement and simulation of antenna characteristics, including isolation, gain, and radiation coverage.

Main Results:

  • The proposed MIMO antenna system demonstrates improved radiation diversity and high isolation between adjacent elements.
  • The design resonates at 3.6 GHz, supporting key sub-6 GHz 5G bands with dual polarizations.
  • The system achieves good isolation, high gain, low ECC/TARC, sufficient channel capacity, low SAR, and adequate efficiency.
  • An integrated ultra-compact phased array millimeter-wave antenna with super-wide bandwidth and end-fire radiation was also introduced.

Conclusions:

  • The developed dual-polarized self-complementary antenna design is a pioneering solution for smartphones, offering anti-interference and diversity properties.
  • The antenna system's performance characteristics make it a strong candidate for future multi-mode 5G cellular applications.
  • The design's adaptability to standard smartphone boards and its favorable performance metrics suggest its viability for 5G hand-portable devices.