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

The invention relates to a high-wave transmission metamaterial antenna housing and an antenna system, wherein the high-wave transmission metamaterial antenna housing is covered on the antenna. The metamaterial antenna housing comprises at least one metamaterial sheet layer, wherein each metamaterial sheet layer comprises a first substrate and a plurality of artificial microstructures with the same dimension arranged on the first substrate in an array; the artificial microstructure comprises a snowflake-shaped structure, and the snowflake-shaped structure comprises a cross-shaped structure and four I-shaped structures with the same dimension arranged at four endpoints of the cross-shaped structure respectively; and the first substrate can be divided into a plurality of metamaterial units, and each of the metamaterial units is configured with one artificial microstructure. According to the invention, the artificial microstructures with special shapes are adhered on the substrate to obtain the necessary electromagnetic response so as to reinforce the wave transmission performance of the metamaterial based antenna housing, and the reflection loss is very small; and the equivalent impedance of the antenna is close to 1, and impedance matching with the air is well realized.

The invention relates to a broadband metamaterial antenna housing and an antenna system. The broadband metamaterial antenna housing comprises at least one metamaterial sheet layer, wherein each metamaterial sheet layer comprises a first substrate and a plurality of artificial microstructures which are arranged on the first substrate in an array mode, and the sizes of the artificial microstructures are the same. Each artificial microstructure comprises a mouth-shaped structure, a snowflake-shaped structure is arranged at the center position of each mouth-shaped structure, and a T-shaped structure is arranged in the middle of each edge of each mouth-shaped structure. According to the broadband metamaterial antenna housing, the artificial microstructures in specific shapes are attached to the first substrates to obtain needed electromagnetic responses, wave-transparent performance of the antenna housing based on metamaterials is strengthened, and anti-interference capacity is increased. The working band of the antenna housing is 15-18GHz, wave-transparent efficiency within the band is high, and losses are fewer. The broadband metamaterial antenna housing has the band elimination characteristic when the working band is out of 15-18GHz, and selective filtering can be achieved.

The invention relates to a dual-passband wave-transmitting material, a radome and an antenna system. The dual-passband wave-transmitting material comprises a first substrate and a second substrate which are made of non-metal materials, and a plurality of first metal micro-structures clamped between the first substrate and the second substrate and arranged in a latticed manner, wherein no gap is reserved between the adjacent first metal micro-structures; and the first metal micro-structures adopt cross-shaped structures. The invention also provided a radome and an antenna system. The dual-passband wave-transmitting material, the radome and the antenna system, provided by the invention, can work in two frequency bands, have high wave-transmitting efficiency in the two frequency bands, and can shield other frequency bands, thereby eliminating interference and ensuring favorable work environments of the antenna. After the antenna is equipped with the radome, the radiating capacity of the antenna is enhanced and the gain is effectively improved.

The invention relates to a double-frequency band-pass wave-transparent material, a radome made of the double-frequency band-pass wave-transparent material and an antenna system. The double-frequency band-pass wave-transparent material comprises a first substrate which is made of a nonmetallic material, and a plurality of artificial microstructures which are attached on the first substrate and are arranged in an array. Each artificial microstructure comprises a cross-shaped structure which is obliquely arranged at a preset angle, and in-line structures which are perpendicularly intersected with four branches of the cross-shaped structure. The double-frequency band-pass wave-transparent material, he radome made of the double-frequency band-pass wave-transparent material and the antenna system provided by the invention can work within two frequency bands, the wave-transparent efficiency within the two frequency bands is very high, other frequency bands can be shielded to eliminate interference and the working environment of an antenna is guaranteed to be good; and after the antenna is provided with the radome, the radiation capability of the antenna is improved and the gain is effectively improved.

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 wideband wave-transmitting metamaterial, and an antenna housing and an antenna system formed by the same. The wideband wave-transmitting metamaterial comprises a first base plate and a second base plate, a square ring structure is sandwiched between the first base plate and the second base plate, and square patches are arranged on the external surface of the first base plate and the external surface of the second base plate in array form. The wideband wave-transmitting metamaterial and the antenna housing provided by the invention both have very high wave-transmitting efficiency in the wideband of 6-18GHz, and smaller loss.

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 high-wave-transmission metamaterial, an antenna housing made of the high-wave-transmission metamaterial and an antenna system comprising the antenna housing. The high-wave-transmission metamaterial comprises at least one metamaterial sheet layer, each metamaterial sheet layer comprises a first substrate, a second substrate and a plurality of artificial microstructures which are clamped between the first substrate and the second substrate and are arrayed, each artificial microstructure comprises a square structure and four right-angled bent portions, the four right-angled bent portions of each artificial microstructure are arranged inside the square structure of the artificial microstructure and respectively enclose with four end corners of the square structure to form square structure units, the right-angled bent portions of each artificial microstructure are not overlapped mutually, and notches with identical sizes are respectively arranged at the four end corners of each square structure. The high-wave-transmission metamaterial has the advantages that wave transmission efficiency within the frequency range of 5-6GHz is high, and loss is low. In addition, the radiating capacity of an antenna is strengthened after the antenna housing is arranged on the antenna, and gain is effectively increased.

The invention relates to a radome material and a radome and an antenna system adopting the same. The radome material comprises a first substrate, a second substrate, a plurality of first metal microstructures, a plurality of second metal microstructures and a plurality of third metal microstructures, wherein the first substrate and the second substrate are made of non-metallic materials; the plurality of first metal microstructures are sandwiched between the first substrate and the second substrate and are arranged into a mesh shape; a plurality of second metal microstructures are attached to the outer surface of the first substrate; a plurality of third metal microstructures are attached to the outer surface of the second substrate; and the second metal microstructures, the third metal microstructures and the first metal microstructures are different. The radome material and the radome and the antenna system which adopt the same have high wave transmitting efficiencies in a Ku wave band and other frequency bands can be shielded, so that the interference is eliminated and the excellent working environment of an antenna is ensured. After the radome is added on the antenna, the radiating capacity of the antenna is strengthened and the gain is effectively 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.