LAUSR

Metasurface Antennas: New Models, Applications and Realizations

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0 Published in 2019 at "Scientific Reports"

DOI: 10.1038/s41598-019-46522-z

Abstract: This paper presents new designs, implementation and experiments of metasurface (MTS) antennas constituted by subwavelength elements printed on a grounded dielectric slab. These antennas exploit the interaction between a cylindrical surface wave (SW) wavefront and… read more here.

Keywords: antennas new; new models; applications realizations; metasurface antennas ... See more keywords

Multi-Feed Metasurface Antennas: Direct Numerical Design and Experimental Validations

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2 Published in 2023 at "IEEE Access"

DOI: 10.1109/access.2023.3265587

Abstract: This paper provides new designs and realizations of leaky-wave (LW) metasurface (MTS) antennas fed at multiple points. The design technique is based on the direct integral-equation solution by the Method of Moments (MoM). The unknown… read more here.

Keywords: feed metasurface; antennas direct; multi feed; design ... See more keywords

Current Based Automated Design of Realizable Metasurface Antennas With Arbitrary Pattern Constraints

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2 Published in 2023 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2023.3270715

Abstract: We present a 3-D method to numerically design a realizable metasurface, which transforms a given incident field into a radiated field that satisfies mask-type (inequality) constraints. The method is based on an integral equation formulation,… read more here.

Keywords: current based; impedance; metasurface antennas; design realizable ... See more keywords

Enhanced Resolution Stripmap Mode Using Dynamic Metasurface Antennas

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0 Published in 2017 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2017.2679438

Abstract: To maintain sufficient signal-to-noise ratio (SNR) for image reconstruction and image interpretation, conventional synthetic aperture radar (SAR) systems must trade off resolution and scene size. This paper proposes a new SAR mode of operation, which… read more here.

Keywords: resolution; mode; resolution stripmap; dynamic metasurface ... See more keywords

Millimeter-wave spotlight imager using dynamic holographic metasurface antennas.

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0 Published in 2017 at "Optics express"

DOI: 10.1364/oe.25.018230

Abstract: Computational imaging systems leverage generalized measurements to produce high-fidelity images, enabling novel and often lower cost hardware platforms at the expense of increased processing. However, obtaining full resolution images across a large field-of-view (FOV) can… read more here.

Keywords: imager; aperture; holographic metasurface; millimeter wave ... See more keywords