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


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


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