Modified metasurface Alvarez lens based on the phase compensation in a microwave band.
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DOI: 10.1364/oe.465263
Abstract: Alvarez lenses, a kind of passive zoom lenses with reconfigurable focus, have been widely applied in optics but very few at lower frequencies such as in a microwave band, where the phase approximation for Alvarez… read more here.
Keywords: alvarez; phase compensation; microwave band; alvarez lens ... See more keywords