Coded Metasurfaces for Two Dimensional Steering and Splitting of Incident Radiation

Malleboina, R and Sarkar, D (2023) Coded Metasurfaces for Two Dimensional Steering and Splitting of Incident Radiation. In: UNSPECIFIED.

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Abstract

This paper presents the design and analysis of 2- bit and 1-bit digitally coded reflective metasurfaces (DCRM) for two-dimensional (2D) beam-steering and beam-splitting applications. Using MATLAB, we first calculate the phase coding information for a metasurface of size 10λ0� 10λ0 (where λ0 is the free space wavelength at 5.9 GHz) to get a desired direction of reflected beam for both 1D and 2D beam steering using MATLAB, considering normally incident plane wave. Subsequently, we develop the complete metasurface structure using a full-wave solver (CST MWS) and observe the corresponding far-field scattering patterns. It is observed that the 2-bit DCRM achieves zero steering error with a half power beam width (HPBW) of 5o. Furthermore, We demonstrate the beam-splitting functionality for generating multiple beams in desired directions using a 1-bit DCRM. Moreover, we report the aperture sizes for DCRMs that achieve highly focused beam-steering with HPBW of 2o & 3o, a directivity of 35.4 dBi & 30. 5dBi, and the SLL of -10.77 dB & -12.71 dB, respectively. © 2023 IEEE.

Item Type:	Conference Paper
Publication:	2023 IEEE Microwaves, Antennas, and Propagation Conference, MAPCON 2023
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering > Electrical Communication Engineering - Technical Reports
Date Deposited:	21 May 2024 09:20
Last Modified:	21 May 2024 09:20
URI:	https://eprints.iisc.ac.in/id/eprint/84962

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