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A compact two elements MIMO antenna for 5G communication.

Ashfaq Ahmad1, Dong-You Choi2, Sadiq Ullah3

  • 1Communication and Wave Propagation Laboratory, Department of Information and Communication Engineering, Chosun University, Gwangju, 61452, South Korea.

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|March 5, 2022
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Summary
This summary is machine-generated.

This study introduces a compact 5G multiple-input multiple-output (MIMO) antenna operating at 29 GHz. The design significantly reduces interference between antenna elements, enhancing signal quality for advanced wireless communications.

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Area of Science:

  • Electrical Engineering
  • Antenna Theory
  • Wireless Communications

Background:

  • Future 5G networks require compact antennas with high performance.
  • Mutual coupling between elements in multiple-input multiple-output (MIMO) antennas degrades signal quality.
  • Existing MIMO antenna designs often lack miniaturization and sufficient isolation.

Purpose of the Study:

  • To propose a miniaturized, low-profile MIMO antenna for 5G applications operating at 29 GHz.
  • To achieve reduced mutual coupling and high isolation between antenna elements.
  • To demonstrate superior performance compared to existing 5G antenna designs.

Main Methods:

  • A novel MIMO antenna design featuring two radiating elements with integrated slits.
  • Utilization of Roger's 4350B laminate as the substrate material.
  • Simulation and measurement of S-parameters, diversity gain, radiation patterns, and envelope correlation coefficient.

Main Results:

  • Achieved a compact antenna size of 11.4 × 5.3 mm², the smallest reported for 5G antennas.
  • Obtained very low mutual coupling of -36 dB at 29 GHz.
  • Demonstrated high isolation improvement of -20 dB compared to straight elements.
  • Reported a low envelope correlation coefficient (ECC < 0.001) and high diversity gain (DG > 9.8 dB).

Conclusions:

  • The proposed miniaturized MIMO antenna effectively suppresses mutual coupling for 5G communication.
  • The design offers excellent isolation and diversity performance in a remarkably small form factor.
  • This antenna is a promising candidate for next-generation wireless communication systems.