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This work proposes a MIMO antenna with circular polarization for 5G wireless networks that require a greater bandwidth. In 5G networks, the combination of MIMO technology and circular polarization improves the signal quality and lowers interference. The antenna elements’ circular polarization increases the penetration and coverage, and MIMO improves multiplexing and spatial diversity. The octagonal construction and Z-shaped slots are used to create the 7 mm by 4 mm single-element antenna. Next, a four-element MIMO antenna, measuring 17 × 14 × 1.6 mm3, is embedded on an FR-4 dielectric substrate in an orthogonal arrangement. With the highest gain of 6 dBi, the antenna runs at a frequency of 25.73 GHz. Over the span of its operation, the suggested antenna has an efficiency of 92% and a broad bandwidth of 5.84 GHz, spanning from 22 GHz to 28 GHz. The developed MIMO system keeps good isolation >20 dB throughout the operating frequency spectrum of operation. The use of the proposed MIMO structure with circular polarization in 5G networks will enhance the reliability, signal quality, and data throughput.

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Design and Optimization of MIMO Configuration with Circular Polarization for Ultra-Reliable 5G Networks

  • 章节

  • 发表日期：

    2025年

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  • S. Thilagavathi,
  • T. Sathiyapriya,
  • R. Sudhakar,
  • V. Gurunathan

摘要

This work proposes a MIMO antenna with circular polarization for 5G wireless networks that require a greater bandwidth. In 5G networks, the combination of MIMO technology and circular polarization improves the signal quality and lowers interference. The antenna elements’ circular polarization increases the penetration and coverage, and MIMO improves multiplexing and spatial diversity. The octagonal construction and Z-shaped slots are used to create the 7 mm by 4 mm single-element antenna. Next, a four-element MIMO antenna, measuring 17 × 14 × 1.6 mm3, is embedded on an FR-4 dielectric substrate in an orthogonal arrangement. With the highest gain of 6 dBi, the antenna runs at a frequency of 25.73 GHz. Over the span of its operation, the suggested antenna has an efficiency of 92% and a broad bandwidth of 5.84 GHz, spanning from 22 GHz to 28 GHz. The developed MIMO system keeps good isolation >20 dB throughout the operating frequency spectrum of operation. The use of the proposed MIMO structure with circular polarization in 5G networks will enhance the reliability, signal quality, and data throughput.