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

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 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 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 discloses a bi-waveband high-wave-transmittance metasurface which comprises structural units arranged in an array, wherein each structural unit comprises two opposite dielectric substrates, and a metal folding line between the two dielectric substrates. The metal folding line is etched in the middle of the dielectric substrates. The large-angle high-wave-transmittance metasurface has the advantages of simple structure, easy processing, high transmissibility in large incident angle, and bi-waveband transmission property. When the incident angle is large, the bi-waveband high-wave-transmittance metasurface realizes high transmission between two wavebands of Ku and Ka, and has total reflection characteristic in the X wave band. Combination of two functions is realized.

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 broadband wave-transmitting material, as well as an antenna housing and an antenna system thereof. The broadband wave-transmitting material is used for realizing broadband wave transmitting, and comprises multiple layers of substrates and a plurality of first artificial microstructures; the substrates are made of nonmetallic materials; each first artificial microstructure is clamped between any two adjacent substrates and arrayed; the wave-transmitting material further comprises second artificial microstructures adhered to the outer surfaces of the two outermost layers of substrates in the multiple layers of substrates; the second artificial microstructures are different from the first artificial microstructures. The broadband wave-transmitting material, the antenna housing and the antenna system are very high in wave-transmitting efficiency within the range of 2-18 GHz broad band. After the antenna housing is added on the antenna, the radiating capacity of the antenna is enhanced, and the gain is improved effectively.

The invention relates to a broadband high wave-transparent metamaterial antenna housing and an antenna system. The broadband high wave-transparent 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 is of a closed structure defined by metal wires, and each closed structure is provided with a cross-shaped hollow pattern. Metal wires on the four our end portions of each cross-shaped hollow pattern extend to the two sides to form extending arms. According to the broadband high wave-transparent 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. Furthermore, the antenna housing is wide in working band, high in wave-transparent efficiency, small in loss and suitable for serving as the high frequency, broadband and high wave-transparent antenna housing.