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Abstract In this paper, a 3D ellipsoidal lens is designed based on the transformation optics (TO) method. The conventional Luneburg and Gutman lenses are mapped to an ellipsoidal lens to… Click to show full abstract
Abstract In this paper, a 3D ellipsoidal lens is designed based on the transformation optics (TO) method. The conventional Luneburg and Gutman lenses are mapped to an ellipsoidal lens to make a fan-beam radiation pattern. The Beamwidth of vertical and horizontal planes can be designed separately. The lens structure and its refractive index are axis-symmetric. So the fan-beam scanning can be resulted by rotating a source around the symmetric axis of the Lens in the horizontal plane. This structure can be used in search radar to estimate the azimuth angle of the targets. Full-wave simulations are performed using the software of CST.
Journal Title: Optics and Laser Technology
Year Published: 2021
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