61results about How to "Enhanced wave transparency" patented technology

The invention relates to a metamaterial antenna housing which comprises at least one metamaterial sheet layer, wherein each metamaterial sheet layer comprises a first substrate and a second substrate which are oppositely arranged, wherein at least one artificial micro structure is attached on the surface of the first substrate, which faces towards the second substrate, the artificial micro structure comprises four branches sharing an intersection joint, one end of any one branch is connected with the intersection joint, the other end of the branch is a free end, the branch comprises at least one bending part, and any branch sequentially clockwise rotates for 90 DEG, 180 DEG and 270 DEG with the joint as a rotating center and respectively coincides with other three branches. Through attaching the artificial micro structure with a special shape on the substrate, needed electromagnetic response is obtained, so that wave transparent performance of the metamaterial antenna housing is enhanced, and antijamming capability is increased.

The invention relates to a large-angle wave-transmitting metamaterial, an antenna housing thereof and an antenna system. The large-angle wave-transmitting metamaterial comprises a plurality of metamaterial sheet layers, wherein each metamaterial sheet layer comprises a substrate and a plurality of artificial microstructures with same shapes and dimensions, the artificial microstructures are distributed on the substrate in an array way, and the artificial microstructures of adjacent metamaterial sheet layers are different in shape. The large-angle wave-transmitting metamaterial, the antenna housing thereof and the antenna system work in a 19-22G GHz frequency band, and the wave-transmitting efficiency of the19-22G GHz frequency band is very high; the loss is relative stable under the condition of large-angle incidence, and higher wave-transmitting rate can be kept.

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 wave-transmitting meta-material and an antenna cover and an antenna system with the material. The wave-transmitting meta-material comprises a first substrate and a second substrate, wherein one layer of square patches with holes at the centers are clamped between the first substrate and the second substrate in an array manner; and circular patches which are arranged in an array manner are arranged on the outer surfaces of the first and second substrates. According to the wave-transmitting meta-material and the antenna cover and the antenna system with the material disclosed by the invention, the wave-transmitting efficiency is high, the loss is small, and the selective wave-transmitting function is realized.

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 relates to a broadband metamaterial antenna housing and an antenna system. The metamaterial antenna housing works in the Ku wave band. 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 snowflake-shaped structure, and each snowflake-shaped structure comprises a cross-shaped structure and four straight-line-shaped structures which are same in size and arranged on four end points of the cross-shaped structure respectively. 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 the Ku wave band (12-18GHz), wave-transparent efficiency within the band is high, and losses are fewer. Furthermore, the working band of the antenna housing still has good wave-transparent performance when an electromagnetic wave band incomes in a certain angle.

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 microwave radome and an antenna system. The microwave radome is sleeved on microwave antennas and comprises a metamaterial slice layer and protection layers covered on two opposite surfaces of the metamaterial slice layer. The metamaterial slice layer comprises a substrate and a plurality of artificial micro-structures arrayed on two opposite surfaces of the substrate. Thickness of the substrate is equal to that of each protection layer. The substrate can be divided into multiple metamaterial units, artificial micro-structures are distributed on two opposite surfaces of each metamaterial unit respectively, and sizes of the artificial micro-structures are the same. The artificial micro-structures are cross-shaped, and four ends of each cross-shaped structure are attached to boundaries of the metamaterial units. The artificial micro-structures with specific shapes are attached to the substrate, the shapes and the sizes of the artificial micro-structures are adjusted to change the relative dielectric constant, the refractive index and the impedance, transmission of the electromagnetic wave is reinforced, and directivity and gain of the antennas are improved.

The invention relates to a low-loss metamaterial antenna housing which comprises at least one metamaterial piece layer. Each metamaterial piece layer comprises a first substrate and a plurality of man-made micro-structures with the same size, wherein the man-made micro-structures are distributed on each first substrate in an array mode. The man-made micro-structures are of cross-shaped structures. Due to the fact that the man-made micro-structures in specific shapes are attached to the substrates, required electromagnetic response is obtained, the wave-transparent performance of the antenna housing based on the metamaterial is strengthened, and anti-jamming capability is improved. Meanwhile, the loss of the antenna housing nearby the frequency point range of 30GHz is quite low, and wave-transparent efficiency is quite high.

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 dual-frequency band-pass wave-transmitting material, an antenna housing made of the dual-frequency band-pass wave-transmitting material and an antenna system comprising the antenna housing. The dual-frequency band-pass wave-transmitting material comprises at least one first substrate and a plurality of artificial microstructures, the first substrates are made of nonmetal materials, the artificial microstructures are attached on the first substrates and are arrayed, each artificial microstructure comprises a crossed structure and a square structure intersected with the crossed structure, and notches are arranged at four end corners of each square structure. The antenna housing made of the dual-frequency band-pass wave-transmitting material can work in two frequency bands, wave transmitting efficiency in each two corresponding frequency bands is high, other frequency bands can be shielded, accordingly, interference is eliminated, and a good working environment for the antenna is guaranteed. Besides, 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 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 super-material antenna housing with a filtering function. The super-material antenna housing comprises at least one super-material sheet layer, wherein each super-material sheet layer comprises a first substrate and a plurality of artificial micro-structures which are arranged on the first substrate in an array mode; each artificial micro-structure comprises a square-shaped structure and a cross-shaped structure; the four corners of the square-shaped structure are respectively provided with a notch; a U-shaped structure of which the opening faces outwards is arranged at each notch; and four terminal points of the cross-shaped structure are overlapped with the middle points of four sides of the square-shaped structure. The antenna housing provided by the invention satisfies good wave penetrating performance and has the filtering function; in addition, the working frequency band of the antenna housing ranges from 6.82 GHz to 17.53 GHz and the bandwidth of the antenna housing is more than 10 GHz; and furthermore, the antenna housing is very high in wave penetrating efficiency within the frequency band and has band stop characteristic nearby 5 GHz and 22.5 GHz, so that the antenna housing can realize selective filtering.

The invention relates to a metamaterial antenna housing which comprises at least one metamaterial sheet layer. The metamaterial sheet layer comprises a first substrate and a second substrate, wherein the first substrate and the second substrate are arranged in an opposite mode, and a plurality of artificial microstructures which are arranged in an array mode are arranged between the first substrate and the second substrate in a clamped mode. Each artificial microstructure comprises a crossed structure and four U-shaped structures which are arranged in four areas of the crossed structure respectively, wherein the crossed structure is divided into the four areas. According to the metamaterial antenna housing, due to the fact that the artificial microstructures with specific shapes are attached to the substrates, needed electromagnetic response is obtained, the wave-transparent performance of the antenna housing based on the metamaterial can be improved, and capacity of resisting disturbance of the antenna housing is improved. Frequency selection can be carried out through adjustment of the sizes of the artificial microstructures, and the corresponding wave-transparent frequency and the corresponding wave filtering frequency can be adjusted as needed. Due to the facts that the metamaterial antenna housing has good wave filtering performance, and further has the wave filtering function, the requirements of wave filtering performance of an antenna are reduced to a large extent, and the cost of a filter used by the antenna is also reduced.

The invention relates to a low pass wave-transmitting material and an antenna housing and an antenna system of the low pass wave-transmitting material. The low pass wave-transmitting material comprises a first base plate, a second base plate, and a plurality of metal microstructures which are sandwiched between the first base plate and the second base plate and arranged in an array way; the first base plate and the second base plate are made from a non-metallic material, the metal microstructures are square patches; and distances are preset between the adjacent square patches at intervals. The low pass wave-transmitting material and the antenna housing and antenna system thereof provided by the invention are high in wave-transmitting efficiency at low frequency band, and can shield high frequency band, thereby removing disturbance and ensuring good working environment of an antenna; and moreover, a high frequency signal can be inhibited under the condition of realizing low frequency wave-transmitting, so as to realize a stealth function.

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.

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 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 metamaterial antenna cover comprises at least one metamaterial lamella, each metamaterial lamella comprises a first base plate and a second base plate which are arranged oppositely, a plurality of artificial microstructures are arranged in array between the first base plate and the second base plate, and each artificial microstructure includes a plurality of cross structures. According to the metamaterial antenna cover, the artificial microstructures in specific shapes are attached to the base plates to obtain required electromagnetic response, therefore wave transmission performance of the antenna cover based on a metamaterial is increased, and antijamming capability is improved.

The invention relates to a metamaterial antenna housing and an antenna system. The metamaterial antenna housing comprises at least one metamaterial sheet layer. The 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 are identical in size. Each artificial microstructure is of a crossed structure, and no gap exists between every two adjacent crossed structures. Needed electromagnetic response is obtained by attaching the metamaterial antenna housing through the artificial microstructures with specific shapes to the substrates, wave-transparent performance of the antenna housing is improved, and capacity of resisting disturbance of the antenna housing based on a metamaterial is improved. In the range of 3.6-18GHz, the metamaterial antenna housing is quite low in loss, and quite high in wave-transparent efficiency.

The invention relates to a metamaterial antenna housing. The metamaterial antenna housing comprises metamaterial sheet layers, wherein each metamaterial sheet layer comprises a first substrate and a second substrate, each first substrate and each second substrate are arranged in an opposite mode, a plurality of artificial microstructures which are arranged in an array mode are arranged between each first substrate and each second substrate in a clamped mode, each artificial microstructure comprises a first metal wire and a second metal wire, each first metal wire and each second metal wire are L-shaped, an image formed by each first metal wire after each first metal wire rotates around the right-angle vertex of itself by 180 degrees is the same as an image formed by the second metal wire, and a closed rectangle is formed by each first metal wire and each second metal wire in a mutual-splicing mode. Needed electromagnetic response is obtained by the metamaterial antenna housing by attaching the artificial microstructures with specific shapes to the substrates, wave-transparent performance of the antenna housing is improved, and capacity of resisting disturbance of the antenna housing based on a metamaterial is improved, and the frequency band reaches more than 5G.

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 discloses a moistureproof method of a porous composite quartz ceramic material. The method comprises the following steps: 1) preparing mixed liquid of an organosilicon compound and an alkane solvent; 2) roasting a porous composite quartz ceramic material; 3) soaking the roasted material in the mixed liquid prepared in the step 1) and then roasting; 4) preparing slurry with a hole sealing capacity; 5) repairing pits of the material which is roasted in the step 3) by using slurry obtained in the step 4); 6) roasting and polishing the repaired material; 7) repeating the steps 5)-6) till the surface of the material has no pits; 8) uniformly spraying mixed liquid of tetraethoxysilane, polytetrafluoroethylene resin and anhydrous ethanol on the material treated in the step 7); and 9) drying under reduced pressure. The porous composite quartz ceramic material treated by the method disclosed by the invention is good in electric performance and strong in wave permeability and has relatively good moisture resistance, appearance quality and mechanical property.

The invention relates to a ceramic-based wave-transmitting material as well as an antenna cover and an antenna system thereof. The ceramic-based wave-transmitting material comprises two layers of first ceramic substrates, a plurality of metal microstructures which are arranged between the two layers of first ceramic substrates in a clamped manner and distributed in a grid shape, and two layers of second ceramic substrates which are used for covering the outer surfaces of the two layers of first ceramic substrates respectively and are different from the first ceramic substrates. The wave-transmitting material made of different ceramic substrates as well as the antenna cover and the antenna system of the wave-transmitting material are very high in wave-transmitting efficiency within wider frequency band. After the antenna cover is added to an antenna, the radiation capability of the antenna is improved and the gain is effectively increased.

The invention discloses a method for manufacturing a metamaterial panel. The method comprises a step of stirring and mixing thermoset synthetic resin liquid and hollow glass beads to form a needed sizing agent, wherein the total mass of the hollow glass beads accounts for 1%-7% of the mass of the sizing agent, a step of respectively and fully immersing an amount of fiber cloth into the sizing agent to obtain a plurality of prepregs, and a step of heating and pressurizing the prepregs to be pressed into an integrity to obtain the metamaterial panel. The invention further discloses a metamaterial antenna cover manufactured through the adoption of the method for manufacturing the metamaterial panel. The metamaterial panel is simple in manufactured technique, low in cost, high in mechanical strength and good in wave-transparent property, and the wave-transparent property of the antenna cover is further enhanced by the manner that man-made micro structures are arranged on the metamaterial panel periodically.