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Dual band circularly polarized reconfigurable asymmetrical dumbbell shaped graphene-silicon ceramic based hybrid antenna for THz application

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Abstract

In this communication, dual-band circularly polarized radiator is structured and investigated in THz regime. The unique properties of proposed radiator are: (1) dual band circularly polarized aerial is designed in THz regime; (2) application of graphene layer over ceramic makes the radiator reconfigurable in terms of both frequency range and axial ratio; and (3) asymmetrical dumbbell shape helps to create dual radiating mode i.e. HEM11δ and HEM12δ mode. For verification, optimized outcome obtained from Ansys HFSS is compared with CST-MWS. There is good agreement between them. The designed radiator works well between 2.4 THz–3.0 THz and 4.4 THz–5.15 THz. The value of axial ratio below 3-dB is achieved between 2.6 THz–2.8 THz and 4.6 THz–4.8 THz, respectively. Broadsided radiation patterns and good gain characteristics create the designed aerial suitable for different wireless applications in the optical domain.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Marri Laxman Reddy Institute of Technology and Management, Dundigal, Hyderabad, 500043, India

    Voruganti Santhosh Kumar

  2. GITAM School of Technology, GITAM University, Visakhapatnam, Andhra Pradesh, 530045, India

    Ratna Kumari Upadhyayula

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  1. Voruganti Santhosh Kumar
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  2. Ratna Kumari Upadhyayula
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Contributions

Conceptualization and methodology [VSK]; writing—revised draft preparation: [VSK]; analysis and investigation: [VSK and RKU]; writing—original draft preparation and supervision: [RKU].

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Correspondence to Voruganti Santhosh Kumar.

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Kumar, V.S., Upadhyayula, R.K. Dual band circularly polarized reconfigurable asymmetrical dumbbell shaped graphene-silicon ceramic based hybrid antenna for THz application. Opt Quant Electron 55, 1075 (2023). https://doi.org/10.1007/s11082-023-05415-2

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