11 results about "Antenna fabrication" patented technology

This invention relates to the field of antenna manufacturing tooling technology, and particularly to a welding fixture for an antenna vibrator array assembly, comprising a lower support plate, a support member, an upper cover plate, and a feed plate limiting member. The upper surface of the lower support plate has a positioning area for accommodating and positioning the power divider network board of the antenna array. The support member is fixedly installed on the upper surface of the lower support plate. The upper cover plate is closable and covers the support member. The lower surface of the upper cover plate is provided with a vibrator limiting structure, which is used to respectively accommodate the upper part of each vibrator assembly. The feed plate limiting member is fixedly installed at the bottom of the upper cover plate and extends downward. The upper and lower feed plates of the vibrator assembly are respectively limited and constrained by the upper cover plate body and the feed plate limiting member in a way that is independent and does not interfere with each other, so that the force paths of the upper and lower feed plates are completely independent and do not interfere with each other, thereby avoiding the displacement coupling effect of surface tension on the feed plate when the solder melts.

The invention discloses a method for manufacturing a main surface of a shipborne special-shaped antenna, and belongs to the technical field of antenna manufacturing. According to the method, aiming at the problem that the main surface of the shipborne long-strip elliptical antenna is easy to deform, molded surface deviation control is realized through mold structure optimization, product structure design and process parameter control, a mold adopts a cast iron material, an upper and lower mold pressing structure and a multi-degree-of-freedom adjusting device, and an I-shaped beam and a net-shaped framework are additionally arranged in the product; a low-shrinkage epoxy carbon fiber composite material is selected and matched with a specific prepreg laying and curing process. The profile deviation caused by thermal expansion of the mold can be reduced by 10%-20%, the rigidity and the stability of a product are remarkably improved, the mean square error of profile profile deviation is controlled within 0.15 mm, the high-precision use requirement of shipborne and vehicle-mounted radar radomes is met, and good practicability and popularization value are achieved.

The invention belongs to the technical field of flat plate slot antenna manufacturing, and discloses a 6061 aluminum alloy flat plate slot antenna brazing and heat treatment manufacturing method. The method comprises the steps of preparing, cleaning, assembling, vacuum brazing, solution treatment and aging treatment, Al-Si-Ge series brazing filler metal is selected, and a vacuum uniform temperature field regulation and control process curve is researched and developed to achieve vacuum brazing of the 6061 aluminum alloy antenna. The problems that in an existing brazing system, the melting point of brazing filler metal is not matched with the melting point of base metal in temperature and the brazing filler metal is not melted synchronously and spread continuously due to uneven temperature distribution of a large-size antenna are solved, and it is guaranteed that a weld joint is continuous and compact. A multiphase flow cooling field homogenization regulation and control tool is used for establishing an antenna full-space cooling field, uniform and rapid cooling of the 6061 aluminum alloy antenna is achieved by regulating and controlling the air fog speed and the coverage area, the problem of solid solution deformation of a thin-wall structural part is solved, and it is guaranteed that the size of the antenna is stable, and the strength of the antenna is improved; and a specification is provided for engineering manufacturing of the high-precision 6061 aluminum alloy flat plate slot antenna.

The invention belongs to the technical field of filter antenna manufacturing and surface treatment, and particularly relates to an integrated manufacturing method of a high-precision multi-cavity millimeter wave waveguide filter antenna. Firstly, a resin waveguide device is manufactured by adopting a photocuring (SLA) 3D printing method, and metallization is performed in combination with a chemical copper plating technology. Precise dimensional precision parts are obtained through high-precision non-metal printing, an optimized chemical plating process is combined, a compact, uniform and smooth copper plating layer with low surface roughness is formed, skin effect loss under the 28GHz frequency band is effectively reduced, and the performance of a filter is improved.

The application provides a plant antenna, comprising a carrier plant, the carrier plant is provided with two cavities which are spaced apart, the two cavities are filled with liquid metal which keeps liquid at normal temperature, and further comprising a connecting line; the connecting line is a radio frequency line, one end of the radio frequency line is provided with two connectors, the two connectors are connected with the liquid metal in the two cavities respectively; or the connecting line is a wire, two ends of the wire are connected with the liquid metal in the two cavities respectively, and a balancer is arranged on the wire; or the connecting line is a wire, two ends of the wire are connected with the liquid metal in the two cavities respectively. The plant antenna and the manufacturing method thereof have the advantages of strong practicability and strong concealment, and the plant antenna has practical effects. The application further provides a plant antenna manufacturing method.

The invention relates to a manufacturing method of an expandable rotating parabolic antenna, belongs to the technical field of antenna manufacturing, and solves the technical problems of manufacturing and assembling complexity and manufacturing precision. The method comprises the following steps: S1, manufacturing a feed source device; s2, a cylindrical force bearing barrel is manufactured, the cylindrical force bearing barrel comprises a hollow barrel body and a supporting column fixed to the edge of the barrel body, and then the barrel body of the cylindrical force bearing barrel is arranged outside the feed source device in a sleeving mode; s3, manufacturing an auxiliary reflector, and mounting the auxiliary reflector on the support column of the cylindrical bearing barrel; s4, calculating the expansion precision of the main reflecting surface of the main reflector, which is in the shape of a rotating paraboloid; s5, manufacturing a plurality of expandable supporting structures of the main reflector, and mounting the expandable supporting structures on the cylindrical bearing barrel; and S6, manufacturing a main reflecting surface of the main reflector. Precision design and calculation are carried out before manufacturing of the main reflector, key data support can be provided for manufacturing of the reflecting surface and the supporting structure, the requirement that the reflecting surface strictly conforms to a theoretical model is met, and manufacturing errors are reduced.

The application belongs to the technical field of antenna manufacturing, and particularly relates to an antenna pressing die and an antenna pressing die. Through a lower die assembly, including a lower pressing die and an auxiliary fitting assembly; the lower pressing die is provided with a first adsorption site, the auxiliary fitting assembly is arranged on the periphery of the first adsorption site, a pressing groove is arranged in the first adsorption site, and an elastic supporting piece is arranged in the pressing groove; and through an upper die assembly, including an upper pressing die, the upper pressing die is provided with a second adsorption site; so that the first adsorption site and the second adsorption site are arranged in position, when the mold is closed, the ferrite is arranged on the first adsorption site, and the antenna is arranged on the second adsorption site, so that when the antenna is pressed into the pressing groove, the ferrite is partially lifted on the periphery of the antenna and is assisted in fitting by the auxiliary fitting assembly. Thus, efficient fitting of multiple surfaces of the antenna is realized, and the fitting is performed by a low-cost fitting structure without complex mechanical structures.

This invention relates to the field of antenna manufacturing and testing technology, and particularly to a testing device for a remote electronically adjustable unit of a base station antenna. The device includes a base, a remote electronically adjustable unit, and testing components. The remote electronically adjustable unit is fixedly mounted on the base and has at least one output motor, each motor corresponding to a set of testing components. The testing components include two support seats, a lead screw, a nut sleeve, a pull rod, and a gravity load. The two support seats are fixedly mounted on the base and spaced apart along a predetermined direction. The lead screw is rotatably supported between the two support seats and is connected to the power output end of the motor. The nut sleeve is threadedly engaged with the lead screw. One end of the pull rod is fixedly connected to the nut sleeve. The gravity load is connected to the other end of the pull rod. This invention uses a gravity load, utilizing the weight of an object to provide constant resistance, unaffected by the stroke position, overcoming the nonlinearity of spring load force, and providing accurate and repeatable testing results.

The invention discloses an EHD printing integrally-formed high-precision FPC antenna and a preparation method, and belongs to the technical field of FPC antennae. The EHD printing integrally-formed high-precision FPC antenna comprises a substrate and a Koch snowflake fractal radiation patch formed on the substrate; a metal line of the Koch snowflake fractal radiation patch has an optimized nominal width Wopt, and the Wopt is a parameter determined by modeling a line width manufacturing error of EHD printing into a random variable in a range of + / -15 [mu] m and carrying out collaborative fault-tolerant design on an antenna structure by taking the resonant frequency offset of the antenna not greater than 1.5% as an optimization target; the radiation patch is printed by conductive ink and is formed after synchronous ultraviolet precuring and stepped thermocuring, and the conductive ink contains supported Ag2O-MXene composite powder; through deep collaboration and optimization of a structure fault-tolerant design, a special functional material and a precision manufacturing process, the problem of mismatch from a high-performance design model to high-fidelity physical antenna manufacturing is solved, and particularly, a reliable integrated solution is provided for flexible electronic manufacturing of complex fine patterns.

The invention discloses a low-dielectric low-loss planar antenna manufacturing method based on laser activation chemical plating and a product thereof, and relates to the technical field of electronic component manufacturing, and the manufacturing method comprises the following steps: firstly, selecting plastic particles with low dielectric constant and low dielectric loss, and carrying out extrusion molding to prepare a planar film or plate; then, performing laser scanning on a preset antenna circuit pattern on the surface to form an activated region; sequentially carrying out oil removal, ultrasonic cleaning, chemical coarsening, palladium activation and reduction treatment on the base material; selectively depositing a metal copper layer in the activated region through a chemical copper plating process to form a conductive antenna circuit; and finally, carrying out anti-oxidation protection treatment, cutting and testing to obtain the planar antenna. According to the manufacturing method provided by the invention, extrusion molding is adopted for manufacturing, the material cost is far lower than that of a special LDS material, the obtained panel antenna product is excellent in performance, the overall process is stable, the consistency is good, and the cost advantage is achieved while the high-performance requirement is met.