Analyzing the Effect of using Electromagnetic Metamaterials in the Production of Plane Spiral Orbital Angular Momentum Waves (PSOAM)

Document Type : Research Paper

Authors

1 Satellite Communication Group, Faculty of Communications Technology, ICT Research Institute, Tehran, Iran.

2 Imam Hossein University, Tehran, Iran.

Abstract

The utilization of orbital angular momentum (OAM) presents an effective approach that enables the simultaneous use of multiple channels on a single frequency. Compared with conventional OAM carrier waves—whose three-dimensional radiation pattern resembles a cone with a hollow region at its center—the planar-spiral orbital angular momentum (PSOAM) carrier propagates transversely, making it more suitable for various practical applications. For the first time, the generation of PSOAM waves using a uniform circular array of microstrip antennas based on electromagnetic metamaterials has resulted in a phase pattern distinct from the conventional OAM theory. This study demonstrates that incorporating metamaterials into the antenna array structure facilitates the generation of higher-order OAM modes with fewer elements than conventional antennas. Simulation results indicate that the proposed array achieves approximately a 27% reduction in the number of antenna elements. Furthermore, the introduced antenna exhibits a wide relative bandwidth of 1.93.

Keywords

Main Subjects

References

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Modeling and Simulation in Electrical and Electronics Engineering
Volume 4, Issue 4 - Serial Number 18
December 2024
Pages 51-57

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History

  • Receive Date: 07 July 2025
  • Revise Date: 25 August 2025
  • Accept Date: 17 September 2025

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