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Beam-Switching Antennas for 5G Millimeter-Wave Wireless Terminals.

Khaled M Morshed1, Debabrata K Karmokar2, Karu P Esselle3

  • 1School of Engineering, Macquarie University, Sydney, NSW 2109, Australia.

Sensors (Basel, Switzerland)
|July 29, 2023
PubMed
Summary

This study presents a cost-effective leaky-wave antenna (LWA) for 5G millimeter-wave devices, enabling 1D and 2D beam-switching for enhanced wireless terminal performance.

Keywords:
28 GHz band5Gleaky-wave antenna (LWA)millimeter-wavepattern reconfigurablewireless terminal

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Area of Science:

  • Electrical Engineering
  • Antenna Theory
  • Wireless Communications

Background:

  • Beam-switching is critical for 28 GHz millimeter-wave 5G devices.
  • Existing solutions may not be cost-effective for wireless terminals.

Purpose of the Study:

  • To investigate and develop a cost-effective, pattern-reconfigurable leaky-wave antenna (LWA) for 5G wireless terminals.
  • To achieve one-dimensional (1D) and two-dimensional (2D) beam-switching capabilities.

Main Methods:

  • Designed a uniform half-width leaky-wave antenna (LWA) with three feed points for 1D beam switching.
  • Fabricated and tested the 1D LWA, demonstrating beam switching in backward, broadside, and forward directions.
  • Integrated two LWAs at right angles for 2D beam switching on a wireless device ground plane.

Main Results:

  • The 1D LWA achieved 128° of 3 dB beam coverage.
  • The 2D antenna system demonstrated switching in five directions.
  • The 2D system achieved wide beam coverage: 167° at ϕ = 0° and 154° at ϕ = 90°.

Conclusions:

  • The developed 1D and 2D beam-switching LWAs offer a cost-effective solution for 5G millimeter-wave terminals.
  • The reconfigurable antennas provide wide angular coverage essential for robust wireless connectivity.
  • The integration into a wireless device ground plane validates practical applicability.