Wide-Angle Beam Steering Based on an Active Conformal Metasurface Lens
Huan Li, Chao Ma, Fazhong Shen and 6 more
IEEE Access · 2019
doi:10.1109/access.2019.2960639 (opens in a new tab)
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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.
Abstract licence: CC BY-NC-ND
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