Wide-Angle Beam Steering Based on an Active Conformal Metasurface Lens

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2019

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Abstract

This work experimentally demonstrates a wide-angle beam steering based on an active conformal metasurface lens. Integrated with microwave varactors, the transmission phase of this cylindrical metasurface lens can be tuned in a range up to 195° by direct-current (DC) bias voltages. By compensating the phase difference between different incidences, the proposed cylindrical lens can collimate the incident spherical wave front into a plane wave front with predefined deflection angle. By increasing the number of feeding sources, the beam steering range of conformal lens can be expanded to ±60°. Having advantages of low cost and simple structure, the proposed conformal lens can be extended to millimeter-wave band and enable a wide range of applications.

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This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see http://creativecommons.org/licenses/by/4.0/

Keywords

Conformal Antenna, Active Metasurface, Phase Shift, Beam Steering, Cylindrical Lens, Varactors, Electromagnetic Wave Propagation

Citation

Li, H., Ma, C., Shen, F., Xu, K., Ye, D., Huangfu, J., Li, C., Ran, L., & Denidni, T. A. (2019). Wide-Angle Beam Steering Based on an Active Conformal Metasurface Lens. IEEE Access, 7, 185264-185272. https://doi.org/10.1109/ACCESS.2019.2960639

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https://doi.org/10.1109/ACCESS.2019.2960639
 https://hdl.handle.net/2346/89159

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