47results about How to "High wave transmission efficiency" patented technology

The invention relates to a broadband wave-transparent material as well as an antenna cover and an antenna system thereof. The broadband wave-transparent material comprises at least one first substrate made of a non-metal material and a plurality of artificial microstructures which are attached to the first substrate and distributed in an arraying manner; each artificial microstructure comprises a circular structure with two symmetrical openings and a straight structure passing through the center of the circular structure, and the two symmetrical openings are respectively positioned at two sides of the straight structure. The broadband wave-transparent material as well as the antenna cover and the antenna system thereof can work in a wider frequency band and are high in wave-transparent efficiency and capable of shielding other frequency bands, thereby eliminating interference and ensuring a favorable working environment of an antenna. After the antenna cover is arranged on the antenna, the radiation capability of the antenna is enhanced and the gain is effectively increased.

The invention relates to a wide-band high-wave transmission metamaterial, an antenna housing thereof and an antenna system. The wide-band high-wave transmission metamaterial comprises at least one metamaterial sheet layer, wherein each metamaterial sheet layer comprises a first substrate and plurality of artificial microstructures, the artificial microstructures are distributed on the first substrate in an array way and in a structure shaped like a Chinese character 'tian', and the center position of the structure shaped like the Chinese character 'tian' is provided with a notch. In the invention, needed electromagnetic response is obtained by adhering the artificial microstructures with specific shapes on the first substrate, and therefore, the wave transmission performance of the antenna housing based on the wide-band high-wave transmission metamaterial is enhanced and the antijamming capability is increased; the wide-band high-wave transmission metamaterial, the antenna housing thereof and the antenna system have the advantages of wider working frequency band, very high wave transmission efficiency and less loss; and the requirements for high frequency, wide band and high wave transmission are met.

The invention relates to a metamaterial microwave antenna cover and an antenna system. The metamaterial microwave antenna cover is covered on an antenna, and comprises at least one metamaterial sheet layer, wherein each metamaterial sheet layer comprises a substrate and multiple artificial microstructures arranged on two opposite surfaces of the substrate in an array manner, the substrate is made of HDPE (high-density polyethylene) material and can be divided into multiple metamaterial units, artificial microstructures are respectively arranged on two opposite surfaces of each metamaterial unit, the sizes of the metamaterial units are identical, and each artificial microstructure comprises a square-shaped structure clung to the edge of the metamaterial unit and a square patch at the center of the metamaterial unit. According to the invention, specific-shaped artificial microstructures are adhered to the substrate, and by adjusting the shape and size of the artificial microstructures, the relative dielectric constant, refractive index and impedance of the material are changed, the transmission of electromagnetic wave is enhanced and the directionality and gain of the antenna are improved.

The invention relates to a meta-material microwave antenna housing and an antenna system. The meta-material microwave antenna housing is covered on the antenna and comprises at least one meta-material sheet layer, wherein each meta-material sheet layer comprises a substrate and a plurality of manmade micro structures which are arranged on two opposite surfaces of the substrate in an arrayed manner; the substrate is divided into a plurality of meta-material units, wherein two opposite surfaces of each meta-material unit are respectively provided with a manmade micro structure, and manmade micro structures are the same in the dimension; and the manmade micro structure comprises a square-shaped structure which is firmly close to the edge of the meta-material unit and a square patch which is arranged on the centre of the meta-material unit. With the adoption of the meta-material microwave antenna housing and the antenna system, the manmade micro structure with a special shape is attached on the substrate, and the relative dielectric constant, refractive index and impedance of the material are changed by regulating the shape and dimension of the manmade micro structure, transmission of electromagnetic wave is reinforced, and directivity and gain of the antenna is improved.

The invention relates to a metamaterial radome and an antenna system. The metamaterial radome includes at least one metamaterial sheet layer, each metamaterial sheet layer includes a first substrate and a plurality of artificial microstructures of the same size arrayed on the first substrate; the artificial microstructures are ten Zigzag structure, wherein there is no gap between each cross-shaped structure. The invention obtains the required electromagnetic response by attaching the artificial microstructure with a specific shape on the substrate, so that the wave-transmitting performance and the anti-interference ability of the radome based on the metamaterial are enhanced. Moreover, the radome of the present invention has extremely small loss in the range of 3.6-18 GHz and high wave-transmitting efficiency.