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Summary

This study introduces a compact, wideband, high-gain antenna for 5G devices. Its novel design and multiple-input-multiple-output (MIMO) configuration significantly reduce mutual coupling, making it ideal for future wireless applications.

Keywords:
5G mobile communicationECCIoTMIMO antennadecoupling structuremutual coupling

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Area of Science:

  • Antenna Engineering
  • Electromagnetics
  • Wireless Communication

Background:

  • The demand for compact, high-performance antennas is increasing for advanced wireless systems.
  • Achieving wide bandwidth and high gain in a small form factor presents significant design challenges.
  • Minimizing mutual coupling in multi-element antenna systems is crucial for reliable performance.

Purpose of the Study:

  • To design and validate a compact, low-profile, wideband, high-gain antenna.
  • To develop a two-port multiple-input-multiple-output (MIMO) antenna configuration with enhanced isolation.
  • To evaluate the performance of the proposed MIMO antenna for 5G applications.

Main Methods:

  • Utilizing Roger RT6002 substrate for antenna fabrication.
  • Employing High Frequency Structure Simulator (HFSS) for electromagnetic (EM) simulation and analysis.
  • Implementing a decoupling structure with a parasitic patch to reduce mutual coupling in the MIMO configuration.

Main Results:

  • The single antenna element exhibits wideband and high-gain characteristics.
  • The proposed MIMO antenna achieves a mutual coupling below -32 dB.
  • Key MIMO parameters including envelope correlation coefficient (ECC), mean effective gain (MEG), diversity gain (DG), and channel capacity loss (CCL) were analyzed.

Conclusions:

  • The fabricated antenna design validates the simulation results.
  • The proposed compact MIMO antenna demonstrates superior performance, particularly in isolation.
  • The design is recommended as a suitable candidate for future 5G devices due to its performance and compact nature.