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<p>This paper presents a novel dual-patch terahertz (THz) antenna structure developed for next-fifth generation and emerging sixth generation communication systems. The antenna is fabricated on a Duroid 5870 substrate exhibiting SiO<sub>2</sub>-like properties to ensure low dielectric loss and stable high-frequency performance. A step-by-step design evolution—from a basic rectangular patch to a final dual-slot configuration with a coupling loop—enhances impedance matching, suppresses mutual coupling, and expands the usable bandwidth. The antenna demonstrates multi-resonant behavior across the 0.1–5.0&#xa0;THz. The antenna’s very low envelope correlation coefficient (ECC &lt; 0.01), large diversity gains (about 10&#xa0;dB), near-balanced mean effective gain (MEG ~ 0&#xa0;dB difference), excellent return loss (S11 &lt; –10&#xa0;dB), and enhanced total active reflection coefficient (TARC &lt; –10&#xa0;dB) are all confirmed by both simulation and measurement. The promise of the suggested antenna for high-data-rate, low-latency THz MIMO transmission, sophisticated sensing, and high-resolution imaging systems is validated by these results.</p>

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A high-performance dual-element slotted THz antenna with enhanced MIMO metrics for 5G/6G applications

  • 期刊论文

  • 发表日期：

    2025年6月20日

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  • K. C. Rajarajeshwari,
  • N. Saravanakumar

摘要

This paper presents a novel dual-patch terahertz (THz) antenna structure developed for next-fifth generation and emerging sixth generation communication systems. The antenna is fabricated on a Duroid 5870 substrate exhibiting SiO2-like properties to ensure low dielectric loss and stable high-frequency performance. A step-by-step design evolution—from a basic rectangular patch to a final dual-slot configuration with a coupling loop—enhances impedance matching, suppresses mutual coupling, and expands the usable bandwidth. The antenna demonstrates multi-resonant behavior across the 0.1–5.0 THz. The antenna’s very low envelope correlation coefficient (ECC < 0.01), large diversity gains (about 10 dB), near-balanced mean effective gain (MEG ~ 0 dB difference), excellent return loss (S11 < –10 dB), and enhanced total active reflection coefficient (TARC < –10 dB) are all confirmed by both simulation and measurement. The promise of the suggested antenna for high-data-rate, low-latency THz MIMO transmission, sophisticated sensing, and high-resolution imaging systems is validated by these results.