High Gain Metamaterial Radome and Antenna System

Abstract

The invention relates to a high-gain metamaterial antenna housing and an antenna system. The metamaterial antenna housing comprises at least one metamaterial slice layer, and each metamaterial slice layer comprises a substrate and a plurality of artificial microstructures arranged on the substrate in an array mode; each artificial microstructure is a closed structure defined by metal lines along outer edges of a snowflower-shaped pattern in an enclosing mode, and the area where the snowflower-shaped pattern in the closed structure is located is hollowed out. Needed electromagnetic response is obtained through the artificial microstructures in specific shapes and attached to the substrate. The relative dielectric constant, the refractive index and impedance of materials can be changed through regulation of the shapes and dimensions of the artificial microstructures, and therefore directionality and grain of antennas are improved; under the condition of reaching the same grain, the array number of the antennas can be greatly reduced, and the overall size of the antennas is reduced. The space between the antenna housing and the antennas is little, the overall thickness is small, the number of layers of the metamaterial is regulated to control the grain of the antennas, and therefore user experience is improved, and different requirements of different customers for the grain of the antennas are met.

Description

technical field [0001] The present invention relates to radomes, and more particularly, to high gain metamaterial radomes and antenna systems. Background technique [0002] Metamaterials, commonly known as metamaterials, are a new type of synthetic material, which is composed of a substrate made of non-metallic materials and multiple artificial microstructures attached to the surface of the substrate or embedded in the interior of the substrate. The substrate can be virtually divided into multiple substrate units arranged in a rectangular array. Each substrate unit is attached with artificial microstructures to form a metamaterial unit. The entire metamaterial is composed of many such metamaterial units, just like Crystals are composed of countless crystal lattices arranged in a certain way. The artificial microstructures on each metamaterial unit may or may not be identical. Artificial microstructures are planar or three-dimensional structures with certain geometric figur...

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Problems solved by technology

The structure is mostly uniform single-wall structure, sandwich structure and space skeleton structure, etc. The design of the cover wall thickness needs to take into account factors such as the working wavelength, the size and shape of the radome, environmental conditions, and the electrical and structural performance of the materials used. Under the condition that the antenna is protected from the external environment, most of them do not have the function of enhancing the directivity and gain of the antenna

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