Showing papers on "Reflective array antenna published in 2021"
Patent•
02 Feb 2021
TL;DR: In this article, a directional diagram reconfigurable reflective array antenna based on liquid metal is proposed for realizing long-distance communication of different beam orientations in a limited space, and structurally comprises a feed source and a reflective metasurface.
Abstract: The invention discloses a directional diagram reconfigurable reflective array antenna based on liquid metal, which can be used for realizing long-distance communication of different beam orientationsin a limited space, and structurally comprises a feed source and a reflective metasurface, wherein the reflective metasurface comprises M*N periodically arranged reflective metasurface units, each reflective metasurface unit comprises a first dielectric plate and a second dielectric plate which are rectangular and stacked up and down, a metal reflection plate is printed on the lower surface of thefirst dielectric plate, a double-opening annular metal patch is printed on the upper surface of the first dielectric plate, and two liquid metal flow channels are formed in the second dielectric plate in the Y-axis direction. Each liquid metal flow channel is connected with the two sides of one opening in the double-opening annular metal patch located above the liquid metal flow channel through the two metalized via holes respectively; liquid metal is injected into or discharged from the liquid metal flow channel to enable one column of units of the reflective array to generate different reflective phases, and multiple columns of reflective units are independently regulated and controlled to realize one-dimensional dynamic scanning of an antenna directional diagram.