Improving directional radiation quality based on a gradient amplitude acoustic leaky wave antenna
نویسندگان
چکیده
منابع مشابه
Silicon-based optical leaky wave antenna with narrow beam radiation.
We propose a design of a dielectric (silicon nitride) optical leaky wave antenna (OLWA) with periodic semiconductor (silicon) corrugations, capable of producing narrow beam radiation. The optical antenna radiates a narrow beam because a leaky wave (LW) with low attenuation constant is excited at one end of the corrugated dielectric waveguide. We show that pointing angle, beam-width, and operati...
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Recently, left-handed (LH) metamaterials have been achieved by arranging an array of TE resonant dielectric resonators (DRs) in a cut-off parallel plate waveguide [1], [2]. Since negative permittivity is provided by the TE cut-off background, the DRs only need to generate the required negative permeability in order to realize a LH metamaterial. This configuration provides a more flexible choice...
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ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2019
ISSN: 1367-2630
DOI: 10.1088/1367-2630/ab467a