Tunable THz dielectric resonator-graphene based dual port radiator with circular polarization and beam tilting features
- 1 May 2023
- journal article
- research article
- Published by SPIE-Intl Soc Optical Eng in Optical Engineering
- Vol. 62 (05), 055102
- https://doi.org/10.1117/1.oe.62.5.055102
Abstract
In this article, a hybrid (dielectric resonator–graphene) MIMO antenna is presented and investigated at THz frequency. The unique properties associated with this antenna design are (i) CP waves are generated with the help of stair-shaped slot excitation; (ii) change in chemical potential of graphene creates the tunability in the proposed design structure; (iii) use of the metallic wall in between the antenna ports slants the far-field pattern by ± 30 deg, providing pattern diversity; and (iv) mirror image of the aperture introduces the concept of polarization diversity. The proposed antenna works between 4.65 and 5.71 THz with CP waves in between 5.25 and 5.5 THz. Polarization and pattern diversity help to improve the diversity performance of designed antenna. Good gain value and stable radiation pattern make the proposed antenna suitable for THz sensing applications.Keywords
This publication has 16 references indexed in Scilit:
- Proximity-coupled two-port multi-input-multi-output graphene antenna with pattern diversity for THz applicationsNano Communication Networks, 2019
- Obtaining the circular polarization in a nano-dielectric resonator antenna for photonics applicationsSemiconductor Science and Technology, 2019
- A proximity coupled wideband graphene antenna with the generation of higher order TM modes for THz applicationsOptical Materials, 2018
- Reconfigurable THz Plasmonic Antenna Based on Few-Layer Graphene with High Radiation EfficiencyNanomaterials, 2018
- Composite Antenna for Ultrawide Bandwidth Applications: Exploring Conceptual Design Strategies and AnalysisIEEE Antennas and Propagation Magazine, 2018
- Dielectric resonator based circularly polarized MIMO antenna with polarization diversityMicrowave and Optical Technology Letters, 2018
- Terahertz Communication for Vehicular NetworksIEEE Transactions on Vehicular Technology, 2017
- Current Misuses and Future Prospects for Printed Multiple-Input, Multiple-Output Antenna Systems [Wireless Corner]IEEE Antennas and Propagation Magazine, 2017
- Wide Band Circularly Polarized Dielectric Resonator Antenna With Stair-Shaped Slot ExcitationIEEE Transactions on Antennas and Propagation, 2016
- Dyadic Green's Functions for an Anisotropic, Non-Local Model of Biased GrapheneIEEE Transactions on Antennas and Propagation, 2008