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Millimeter-wave multi-mode circular antenna array for uni-cast multi-cast and OAM communication.

Stylianos D Assimonis1, Muhammad Ali Babar Abbasi2, Vincent Fusco2

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This summary is machine-generated.

This study introduces a novel circular antenna array for 28 GHz wireless applications. The antenna enables simultaneous uni-/multi-cast and orbital angular momentum (OAM) data transmission, enhancing spectral efficiency for 5G and beyond.

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Area of Science:

  • Electrical Engineering
  • Wireless Communications
  • Antenna Theory

Background:

  • The demand for higher data rates and spectral efficiency in wireless communication systems is increasing.
  • Orbital Angular Momentum (OAM) multiplexing offers a promising approach to enhance capacity by utilizing spatially orthogonal modes.
  • Current antenna technologies face challenges in simultaneously supporting diverse communication schemes like multicast and OAM transmission.

Purpose of the Study:

  • To design and validate a novel circular antenna array capable of simultaneous uni-/multi-cast and OAM mode data transmission.
  • To investigate the antenna's performance at 28 GHz for potential 5G and beyond applications.
  • To achieve high spectral efficiency through orthogonal transmission methods.

Main Methods:

  • Design of a circular antenna array using twelve electromagnetically coupled microstrip patch antennas.
  • Utilizing orthogonal electric components for simultaneous horizontal (broadside) and vertical (endfire) radiation patterns.
  • Full-wave electromagnetic analysis and experimental measurements for validation.

Main Results:

  • The proposed antenna array operates effectively at 28 GHz, supporting both uni-/multi-cast in the horizontal plane and OAM modes in the vertical plane.
  • Demonstrated capability to generate up to 15 spatially orthogonal OAM modes.
  • Achieved realized gains of 8.65 dBi for uni-cast and 6.48 dBi for OAM modes.
  • Good agreement between simulated and measured results for impedance matching, mutual coupling, and radiation patterns.

Conclusions:

  • The developed circular antenna array is a viable solution for high spectral efficiency data transmission.
  • It effectively integrates uni-/multi-cast and OAM multiplexing capabilities.
  • The antenna is well-suited for future wireless applications demanding orthogonal communication links and advanced multiplexing techniques.