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<p>This paper gives a detailed insight into a 2-port graphene–silicon aerial in the THz spectrum. Of two antenna ports, one port is stimulated using a printed line, while other one is excited using apertures. Feed design produces a circular waves within the operating band, i.e.,5.38–5.65&#xa0;THz. Both antenna ports create a fundamental mode, i.e., HEM<sub>11δ</sub> inside the ceramic. The main characteristics of the designed aerial are: (q1) bidirectional pattern diversity is achieved by placing the antenna ports in opposite orientations; (2) the addition of polarization diversity helps to improve the isolation level to above 25&#xa0;dB; and (3) the array design enhances the gain of the aerial to around 9.0&#xa0;dBi. A coating of graphene over the ceramic makes the aerial frequency tunable. The designed aerial works effectively between 5.16 and 5.85&#xa0;THz. Directive and stable far-field features make the aerial design applicable for the 6G communication system in the THz spectrum.</p>

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Two-Port Frequency Tunable Graphene–Silicon Built Array Antenna in THz Regime with High Gain and Pattern Diversity Features

  • 期刊论文

  • 发表日期：

    2025年5月31日

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  • Kumar Saurabh Yadav,
  • Gagandeep Bharti,
  • Sudhanshu Verma

摘要

This paper gives a detailed insight into a 2-port graphene–silicon aerial in the THz spectrum. Of two antenna ports, one port is stimulated using a printed line, while other one is excited using apertures. Feed design produces a circular waves within the operating band, i.e.,5.38–5.65 THz. Both antenna ports create a fundamental mode, i.e., HEM11δ inside the ceramic. The main characteristics of the designed aerial are: (q1) bidirectional pattern diversity is achieved by placing the antenna ports in opposite orientations; (2) the addition of polarization diversity helps to improve the isolation level to above 25 dB; and (3) the array design enhances the gain of the aerial to around 9.0 dBi. A coating of graphene over the ceramic makes the aerial frequency tunable. The designed aerial works effectively between 5.16 and 5.85 THz. Directive and stable far-field features make the aerial design applicable for the 6G communication system in the THz spectrum.