preprint
<title>Abstract</title> This paper presents a beam steering technique for a single antenna element with optical lenses. The nanoantenna operates at a wavelength of 1550 nm. The plasmonic nanoantenna consists of silicon, silicon dioxide, and silver. It is fed with light from below. The light inside the plasmonic nanoantenna radiates vertically from bottom to top, and we obtain a gain of 8.46 dBi. When we put the lens on the antenna, the efficiency of the antenna increases according to the design of the antenna, the lens, and the material the lens is made of. In this article, we will choose two types of lenses, the hemispherical dielectric lens and the flat lens, which consists of 17 layers of different materials. The lenses are moved above the nanoantenna to obtain the best gain and efficiency. The lenses move right and left in the X direction, and thus we get the beam steering at different angles. In general, using any lens improves the efficiency of a nanoantenna, and different lenses provide different levels of gain and efficiency.
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DOI: 10.21203/rs.3.rs-4864193/v1
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