CN121035603A - A method and system for manufacturing three-dimensional braiding of the radiating surface of a multi-layer curved antenna - Google Patents
A method and system for manufacturing three-dimensional braiding of the radiating surface of a multi-layer curved antennaInfo
- Publication number
- CN121035603A CN121035603A CN202511559534.2A CN202511559534A CN121035603A CN 121035603 A CN121035603 A CN 121035603A CN 202511559534 A CN202511559534 A CN 202511559534A CN 121035603 A CN121035603 A CN 121035603A
- Authority
- CN
- China
- Prior art keywords
- layer
- wave
- braiding
- circuit
- curved
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
Landscapes
- Woven Fabrics (AREA)
Abstract
本发明涉及天线制造技术领域，公开了一种多层曲面天线辐射面三维编织制造方法及系统，其中方法包括：在曲面模具上编织支撑结构，形成支撑层；在支撑层上编织表面电路，形成电路层；在电路层上预埋馈线，形成馈线层；在馈线层上编织电阻器件，形成电阻层；在电阻层上编织透波结构，形成透波层；在透波层上编织吸波谐振结构，形成谐振层；支撑层、电路层、馈线层、电阻层、透波层以及谐振层共同构成辐射面；编织多层辐射面，各层辐射面之间互联补强，形成编织物毛坯；将编织物毛坯浸胶固化定形；将编织物毛坯脱膜修形和后处理，得到最终的多层曲面天线辐射面。本发明可实现吸波谐振结构纤维精确装配、曲面电路结构高精度编织和多层辐射面编织。
This invention relates to the field of antenna manufacturing technology, and discloses a three-dimensional braiding manufacturing method and system for multi-layer curved antenna radiating surfaces. The method includes: braiding a support structure on a curved mold to form a support layer; braiding surface circuits on the support layer to form a circuit layer; pre-embedding feed lines on the circuit layer to form a feed line layer; braiding resistive devices on the feed line layer to form a resistive layer; braiding a wave-transparent structure on the resistive layer to form a wave-transparent layer; braiding an absorbing resonant structure on the wave-transparent layer to form a resonant layer; the support layer, circuit layer, feed line layer, resistive layer, wave-transparent layer, and resonant layer together constitute the radiating surface; braiding multiple radiating surfaces, with interconnections and reinforcements between each layer to form a braided blank; impregnating and curing the braided blank with adhesive; and removing the mold, reshaping, and post-processing the braided blank to obtain the final multi-layer curved antenna radiating surface. This invention enables precise assembly of the fiber absorbing resonant structure, high-precision braiding of the curved circuit structure, and multi-layer radiating surface braiding.
Description
Technical Field
The invention relates to the technical field of antenna manufacturing, in particular to a three-dimensional weaving manufacturing method and system for a radiation surface of a multilayer curved antenna.
Background
In modern information communication systems, communication terminals using antennas as core radiation/receiving units have been deeply integrated into production life full scenes, from intelligent terminals in the consumer electronics field to sensing nodes of internet of things (IoT) systems, to emerging applications such as wearable devices, and the like, and strict requirements are put on morphological adaptability and performance stability of the antenna systems. With the rapid development of flexible electronics and wearable technology, the flexible conformal antenna can be closely attached to a non-planar carrier (such as a curved surface of a human body and a special-shaped surface of equipment) to realize non-perception integration, so that the flexible conformal antenna becomes a core key component of a next-generation communication terminal, and research, development and application of the flexible conformal antenna become the focus direction of industry attention.
However, the conventional flexible conformal antenna has significant performance loss problems in practical application, namely, when the antenna is in a bending, torsion or dynamic deformation state, the consistency of the interface between a radiating unit and a substrate is destroyed, so that the electromagnetic wave generates interface scattering clutter in the transmission process, and meanwhile, the dielectric constant and the magnetic permeability of heterogeneous materials (such as a metal radiating layer, a polymer substrate and a packaging layer) in the antenna system are mismatched, so that the reflection loss and the transmission loss of the electromagnetic wave at the interface of the material are caused, the radiation efficiency of the antenna is directly reduced, the pattern is distorted, and the stability and the directivity precision of signal transmission are seriously affected. Therefore, how to construct an antenna radiation layer wave-absorbing integrated structure with high-efficiency radiation and clutter suppression functions under the curved surface structure and dynamic deformation conditions becomes a core technical bottleneck for restricting the industrialization process of the flexible conformal antenna.
From the aspect of band suitability, the conventional single-layer radiating surface antenna mostly adopts a single resonant structure design, the working band of the single-layer radiating surface antenna is determined by the geometric dimension of a radiating unit, the dielectric constant of a base material and a feeding mode, and only single-band or narrow-band electromagnetic wave radiation and transmission can be realized. For the multi-band (such as Sub-6GHz, millimeter wave, beidou/GPS and the like) compatible scene required by the modern communication system, the single-layer radiation surface is difficult to simultaneously meet the requirements of impedance matching and radiation performance in a wide frequency range because the single-layer radiation surface is limited by dielectric loss characteristics of materials and pattern topological structures of a radiation surface circuit.
In order to realize multi-band signal transmission, a multi-antenna array deployment scheme is generally adopted in the current industry, namely, a plurality of single-band antennas are arranged at different positions of a terminal, and space diversity or polarization diversity is utilized to form frequency band complementation so as to cover multi-mode communication requirements. The scheme has inherent limitations that the superposition deployment of multiple antennas causes the volume redundancy and the weight increase of the terminal, which is contrary to the lightweight and miniaturized design concept of the wearable equipment, and meanwhile, the antenna array has strong structural rigidity, is difficult to adapt to the dynamic deformation of the flexible carrier, cannot meet the use requirements of bending, stretching and the like in wearing scenes, and greatly limits the application range of the antenna array in the flexible terminal.
Disclosure of Invention
In order to solve the problems of construction of a curved surface wave-absorbing resonance structure, weaving of a multi-layer curved surface radiation surface, interlayer interconnection among the multi-layer curved surfaces and the like, the invention provides a three-dimensional weaving manufacturing method and system for the radiation surface of a multi-layer curved surface antenna.
The technical scheme adopted by the invention is as follows:
a three-dimensional braiding manufacturing method of a multi-layer curved antenna radiation surface comprises the following steps:
step 1, braiding a supporting structure on a curved surface die to form a supporting layer;
Step 2, weaving a surface circuit on the supporting layer to form a circuit layer;
Step 3, pre-burying a feeder line on the circuit layer to form a feeder line layer;
step 4, weaving a resistor device on the feeder line layer to form a resistor layer;
Step 5, weaving a wave-transmitting structure on the resistance layer to form a wave-transmitting layer;
step 6, weaving a wave-absorbing resonance structure on the wave-transmitting layer to form a resonance layer, wherein the support layer, the circuit layer, the feeder layer, the resistor layer, the wave-transmitting layer and the resonance layer form a radiation surface together;
step 7, repeating the steps 1-6, weaving a plurality of layers of radiation surfaces, and interconnecting and reinforcing the radiation surfaces to form a woven fabric blank;
step 8, dipping, solidifying and shaping the knitted fabric blank;
and 9, demolding, shaping and post-processing the braided fabric blank to obtain the final multi-layer curved antenna radiation surface.
Further, in the step 1, the supporting layer comprises a supporting structure woven based on the reinforcing fibers, the thickness range of the supporting layer comprises 0.5mm-1.0mm, and in the step 2, the circuit layer comprises a circuit pattern woven based on the mixture of the conductive fibers and the reinforcing fibers, and the thickness range of the circuit layer comprises 0.05mm-0.15mm. Wherein, the circuit patterns are regularly arranged in a certain shape, and play a role in transmitting and receiving electromagnetic waves.
Further, in the step 3, the feeder layer comprises a feeder woven based on feeder fibers, the feeder is connected with the circuit layer and led out along a woven surface circuit, the feeder fibers comprise one or more multi-layer fibers subjected to metal surface treatment, the inner core is a non-metal fiber (such as polyimide, aramid, polyethylene and the like), and the outer layer is a metal (such as gold, silver, copper and the like) layer.
Further, in the step 4, the resistor layer comprises square resistors woven on the basis of the resistor fiber materials and plays a role in optimizing the impedance of the radiation surface, and the thickness range of the resistor layer comprises 0.1mm-0.3mm.
Further, in step 5, the wave-transmitting layer includes a wave-transmitting structure woven based on wave-transmitting fibers and having a preset weaving gap (reducing electric loss, realizing low-loss penetration of electromagnetic waves), and the thickness range of the wave-transmitting layer includes 0.1mm-0.3mm.
In step 6, the resonant layer comprises a resonant structure substrate woven based on reinforcing fibers, a conductive resonant circuit pattern woven based on conductive fibers, and a resonant resistor woven based on a resistive fiber material at a gap of the conductive resonant circuit pattern, and the purpose of absorbing electromagnetic waves is achieved by adjusting phase and resonant coupling through a periodic two-dimensional structure.
In step 7, the interconnection reinforcement between the radiation surfaces of the layers comprises that the resonance layer of the radiation surface of the upper layer and the support layer of the radiation surface of the lower layer are connected in a penetrating, interweaving and arranging way in the vertical direction through reinforcing fibers, so that the mechanical strength between the layers is ensured.
Further, in step 8, the step of dipping, solidifying and shaping the woven fabric blank comprises the steps of placing the woven fabric blank in a hot press forming die, dipping resin (such as epoxy resin, amino resin, phenolic resin and the like) and protecting a feed line exposed port (preventing pollution), and heating, pressurizing and solidifying to realize the shaping of the antenna radiation surface.
In step 9, the step of demolding, shaping and post-processing the woven fabric blank comprises the steps of taking out the woven fabric blank impregnated with resin after solidification, removing edge burrs and redundant glue nubs, and finishing the outline by adopting a numerical mill so as to meet the precision requirement.
A multi-layer curved antenna radiating surface three-dimensional braiding manufacturing system comprising:
A support structure braiding module configured to braid a support structure over a curved mold to form a support layer;
a surface circuit braiding module configured to braid surface circuits on the support layer to form a circuit layer;
The feeder line embedding module is configured to embed a feeder line on the circuit layer to form a feeder line layer;
A resistive device braiding module configured to braid a resistive device on the feeder layer forming a resistive layer;
the wave-transmitting structure braiding module is configured to braid a wave-transmitting structure on the resistance layer to form a wave-transmitting layer;
a wave-absorbing resonant structure braiding module configured to braid a wave-absorbing resonant structure on the wave-transparent layer to form a resonant layer;
the interlayer connection module is configured to interconnect and reinforce the multi-layer radiation surface to form a braided fabric blank, wherein the radiation surface comprises a supporting layer, a circuit layer, a feeder line layer, a resistance layer, a wave-transmitting layer and a resonance layer;
a cure setting module configured to dip cure set the braid blank;
and the post-processing module is configured for demolding, shaping and post-processing the woven fabric blank to obtain the final multi-layer curved antenna radiation surface.
The invention has the beneficial effects that:
1. The invention can solve the problems of construction of the curved surface wave-absorbing resonance structure, weaving of the multi-layer curved surface radiation surface, interlayer interconnection among the multi-layer curved surface and the like, realizes accurate assembly of the wave-absorbing resonance structure fiber, high-precision weaving of the curved surface circuit structure and multi-layer radiation surface weaving by the weaving technology, and realizes the multi-frequency band transmission function.
2. The invention comprehensively considers the wave-absorbing structure of the curved radiation surface and the multi-frequency band signal transmission, takes the five fibers of the reinforcing fiber, the conductive fiber, the resistance fiber, the feed fiber and the wave-transmitting fiber as materials, prepares the antenna multi-layer radiation surface, the radiation surface circuit pattern, the wave-transmitting structure and the wave-absorbing resonance structure by a three-dimensional braiding machine, and realizes the braiding manufacture of the multi-layer antenna radiation surface by braiding the feed structure among the radiation surface layers. Each layer of radiation surface of the three-dimensional woven multilayer curved surface antenna receives and transmits electromagnetic wave signals with different wave bands, thereby meeting the electromagnetic wave receiving and transmitting functions of multiple frequency bands and achieving the optimization of electric signal transmission of the radiation surface.
3. The invention uses precision knitting technology, adopts fiber and superfine fiber with high strength, conductivity, dielectric, wave absorbing and wave transmitting functions, and simultaneously, weaves an integrated multilayer wave absorbing resonance structure on a curved radiation surface. The radiation surface of the multi-layer curved antenna woven by the invention can reduce clutter interference, realize efficient transmission of multi-band signals and provide a manufacturing technology for high-efficiency multifunctional antennas.
Drawings
Fig. 1 is a schematic diagram of a radiation surface structure of a multi-layer curved antenna according to embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of the radiation surface pattern of layer 1 in embodiment 2 of the present invention.
Fig. 3 is a schematic view of the radiation surface pattern of layer 2 in embodiment 2 of the present invention.
Fig. 4 is a schematic diagram of the radiation surface pattern of layer 3 in embodiment 2 of the present invention.
Fig. 5 is a schematic diagram of electromagnetic wave transmission on the radiation surface in embodiment 2 of the present invention.
Fig. 6 is a schematic diagram of a wave-absorbing resonant structure in embodiment 2 of the present invention.
Fig. 7 is a three-dimensional weaving process flow chart of the radiation surface of the multi-layer curved antenna in embodiment 2 of the invention.
Detailed Description
Specific embodiments of the present invention will now be described in order to provide a clearer understanding of the technical features, objects and effects of the present invention. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Example 1
As shown in FIG. 1, the embodiment provides a three-dimensional weaving method of a radiation surface of a multilayer curved surface antenna, which comprises the steps of 1, weaving a support structure of the radiation surface of the 1 st layer, 2, weaving a surface circuit of the radiation surface of the 1 st layer, 3, weaving a feeder line of the radiation surface of the 1 st layer, 4, weaving a resistor device of the radiation surface of the 1 st layer, 5, weaving a wave-transmitting structure of the radiation surface of the 1 st layer, 6, weaving a wave-absorbing resonance structure of the radiation surface of the 1 st layer, 7, repeating the steps 1 to 6, weaving the radiation surfaces of the 2 nd layer, the 3 rd layer and the n layer (n is more than or equal to 3), obtaining a woven fabric blank, 8, dipping the woven fabric blank to be shaped, 9, removing the woven fabric blank to be solidified and performing post-treatment, and obtaining the final radiation surface of the multilayer curved surface antenna.
In this embodiment, each layer of radiation surface includes six parts including a support structure, a surface circuit, a feeder line, a resistor device, a wave-transmitting structure and a wave-absorbing resonant structure, which are completed in steps 1 to 6. Preferably, the thickness of each layer of radiating surface is 2-5mm.
Preferably, the thickness of the support structure is 0.5-1mm, the reinforcing fibers are selected, 5-10 layers are woven, and the single-layer fibers are woven to be 0.01mm.
Preferably, the curved circuit is woven by adopting superfine conductive fibers, the weaving thickness is 0.05-0.15mm, the single-layer fiber thickness is 0.005-0.015mm, the number of the weaving layers is 10-30, and meanwhile, the weaving circuit realizes different pattern structures according to the design, and the circuit patterns control the electromagnetic wave radiation form;
In the embodiment, the surface circuit realizes signal transmission of the antenna, electromagnetic wave signals are transmitted to the rear end through the feeder line, the fiber is firmly fixed by adopting a crochet knitting method when the feeder line is knitted, and the feeder line is electrically connected with the surface circuit. Preferably, the feed line braiding is realized by adopting thicker wires or multiple layers of coaxial heterogeneous fiber materials, and feed fibers with the diameter of 50-300 microns are selected.
Preferably, the resistor device is woven by a resistor fiber material prepared by a resistor, and a resistor film is woven at a pattern bridging position in a surface circuit to realize different resistance values so as to adjust the impedance matching of a radiation surface. More preferably, the thickness of the resistor film is 0.1-0.3mm, the thickness of the woven 5-15 layers is 0.005-0.02mm, and the resistor device with the thickness of 50-500 omega is obtained according to different materials, and the resistor film needs to be strongly connected with a surface circuit, so that the woven method of crochet needles such as locking needles, short needles, long needles and the like is preferable.
In this embodiment, the wave-transparent structure is a protective layer with a wave-transparent function woven on the supporting structure and the surface circuit, so as to protect the circuit, the resistor and the wave-absorbing structure. Preferably, the wave-transmitting structure is woven by wave-transmitting fibers, the thickness is 0.2-0.5mm, 5-20 layers are woven, and the thickness of single-layer fibers is about 0.01mm.
In this embodiment, the wave-absorbing resonance structure means that a super-surface circuit pattern having a wave-absorbing resonance function is woven on the basis of the wave-transmitting structure. Preferably, the conductive fiber, the reinforcing fiber and the resistance fiber are mixed for braiding, the conductive fiber is used for preparing a pattern, the resistance fiber is used for braiding the functional wave-absorbing layer of the resistance device, the braiding thickness is 0.1-0.3mm, the braiding layer number is 5-20, and the single-layer fiber braiding thickness is 5-30 microns.
In this embodiment, after the previous layer of radiation surface is completed, the next layer of radiation surface is woven, and the wave-transmitting structure of the previous layer of radiation surface and the supporting structure of the next layer of radiation surface are connected through the woven fiber transition layer. Preferably, the fiber transition layer has a thickness of 0.1-0.3mm and has a strong bond strength. In the step 7, the steps 1-6 are continued to finish the braiding of the second layer, the third layer and the like. And obtaining the multi-layer curved surface antenna radiating surface blank after finishing the last layer of radiating surface, wherein the blank is in a soft state. The method comprises the steps of setting a blank in a curved surface tool, dipping, hot pressing, demoulding, taking out, trimming burrs of the radiation surface of the multilayer curved surface antenna, and finally obtaining the radiation surface of the woven multilayer curved surface antenna.
Preferably, the type of weave fiber and weave size data for each of the embodiments are summarized in Table 1.
TABLE 1 radiation surface braiding layers of fibrous materials, size summary
It should be noted that the above weave fiber type and weave size data are for reference only, and it should be understood that the weave fiber type and weave size of the present invention is not limited to the form disclosed in table 1.
Example 2
This example is based on example 1:
The embodiment provides a three-dimensional weaving manufacturing method of a radiation surface of a multi-layer curved surface antenna, which is used for manufacturing a flexible antenna with a three-layer radiation surface structure, in particular to a three-band transmission three-layer curved surface antenna radiation surface with the thickness of 5.65mm, wherein the thickness and the fiber layers of the radiation surface are shown in table 2.
TABLE 2 three-layer curved radiating surface braiding material, size
Specifically, the braiding and weaving process of the present embodiment may be implemented in the following manner:
step 1, braiding a supporting structure of the curved surface radiation surface of the layer 1. Preferably, glass fiber, polyimide fiber and ultra-high molecular weight polyethylene fiber silk are selected, 10 fiber braiding layers are braided, the thickness of a single-layer braiding layer is 0.01mm, and the total thickness of the curved surface supporting structure is 1mm.
And 2, weaving a circuit structure of the curved surface radiation surface of the layer 1. Preferably, superfine gold wires, silver wires and copper wires are adopted to weave a circuit pattern by matching polyimide fibers, the fiber thickness is 0.005-0.015mm, the single-layer thickness is 0.01mm, 15 layers are woven, and the circuit layer thickness is 0.15mm. The woven circuit realizes different pattern configurations according to designs, and as shown in fig. 2, the woven circuit pattern controls the radiation shape of electromagnetic waves.
And 3, knitting the feeder line structure of the curved surface radiation surface of the layer 1. The feeder line realizes the signal transmission of each real element of the antenna and transmits electromagnetic wave signals to the rear end. Preferably, the feeder adopts a crochet knitting method to realize firm fixation of the fibers and electrical connection of the feeder and a circuit, and the feeder is knitted by adopting a thicker wire fiber material, wherein the fiber diameter is 80 microns.
And 4, weaving the resistance device with the curved radiation surface of the 1 st layer. Preferably, a crochet method such as a lock needle method, a short needle method, a long needle method and the like is adopted for weaving the thin film resistor device, the fiber materials such as nichrome fiber, silicon fiber, carbon fiber and the like for preparing the resistor are selected for weaving, a resistor film is woven on a pattern bridging position of the resistor fiber material in a circuit, 100 ohm resistance is realized, the thickness of the resistor film is 0.01mm, 10 layers of the resistor film is woven, and the total thickness is 0.1mm.
And 5, weaving a wave-transmitting structure of the curved surface radiation surface of the layer 1. And a protective layer with a wave-transmitting function is woven on the circuit pattern, so that the protection of a circuit, a resistor and a wave-absorbing structure is realized. Preferably, aramid fiber and quartz fiber are adopted for knitting, the fiber diameter is 0.02mm, the thickness of the knitting layer is 0.01mm, 30 layers are knitted, and the thickness of the wave-transmitting layer is 0.3mm.
And 6, weaving the wave-absorbing resonance structure of the curved radiation surface of the layer 1. The super-surface circuit pattern with the wave-absorbing resonance function is woven on the basis of the wave-transmitting structure, preferably, conductive fibers such as gold wires, copper wires and the like, reinforcing fibers such as polyimide fibers, aramid fibers and the like, and resistor fibers such as carbon fibers, silicon fibers, nichrome fibers and the like are mixed and woven, and the function wave-absorbing layer of the pattern (circuit patterns 1 and 2 in fig. 6) and the resistor fiber woven resistor device (tuning resistor in fig. 6) is formed by the conductive fibers on the basis of the reinforcing fibers, as shown in fig. 6. Preferably, the single-layer fiber is woven to have a thickness of 0.02mm, the number of layers is 10, and the total thickness of the woven fabric is 0.2mm.
And 7, repeating the first step to the sixth step, and finishing the braiding of the curved surface radiation surfaces of the layer 2 and the layer 3 to obtain a braided fabric blank. After the front layer of curved surface radiation surface is finished, the next layer of curved surface radiation surface is woven, and the wave-transmitting structure of the front layer of curved surface radiation surface is connected with the supporting structure of the next layer of curved surface radiation surface through the woven fiber transition layer. Preferably, the fiber transition layer is woven by aramid fibers, and the thickness of the transition layer is 0.2mm. The difference from the first layer curved surface radiation surface is that the 2 nd layer curved surface radiation surface circuit pattern is different, and realizes the electromagnetic wave radiation of the frequency B as shown in figure 3, and the 3 rd layer curved surface radiation surface circuit pattern realizes the electromagnetic wave radiation of the frequency C as shown in figure 4.
And 8, finishing the braiding of the radiating surfaces of the second layer, the third layer and the like of the curved antenna. And after the radiation surface of the final layer of curved antenna is finished, obtaining a multi-layer curved antenna radiation surface blank, wherein the blank is in a soft state at the moment, protecting a feeder line extending out of the edge of the blank, and avoiding pollution caused by subsequent impregnation and solidification. And (3) dipping and shaping the multi-layer curved surface radiation surface braided fabric blank, placing the blank in a hot-press forming tool, preferably, dipping the braided fabric blank with epoxy glue solution in a vacuum auxiliary resin transfer forming (VARTM) mode, setting the pressurizing time, the pressurizing temperature and the curing condition (the curing temperature is 60-250 ℃, the curing time is 4-8 hours, and the curing pressure is 0.1-6.0 MPa), thereby completing the resin encapsulation of the blank.
And 9, placing the blank in a curved surface tool for gum dipping and hot pressing, curing and shaping, removing the film, taking out, trimming burrs of the radiation surface of the shaped curved surface antenna, and finally obtaining a woven 3-layer curved surface antenna radiation surface, so as to realize the radiation of electromagnetic waves in 3 frequency bands shown in fig. 5, wherein the total preparation process is shown in fig. 7.
Example 3
The embodiment provides a three-dimensional weaving manufacturing system of a radiation surface of a multilayer curved antenna, which comprises the following steps:
A support structure braiding module configured to braid a support structure over a curved mold to form a support layer;
a surface circuit braiding module configured to braid surface circuits on the support layer to form a circuit layer;
The feeder line embedding module is configured to embed a feeder line on the circuit layer to form a feeder line layer;
A resistive device braiding module configured to braid a resistive device on the feeder layer forming a resistive layer;
the wave-transmitting structure braiding module is configured to braid a wave-transmitting structure on the resistance layer to form a wave-transmitting layer;
a wave-absorbing resonant structure braiding module configured to braid a wave-absorbing resonant structure on the wave-transparent layer to form a resonant layer;
the interlayer connection module is configured to interconnect and reinforce the multi-layer radiation surface to form a braided fabric blank, wherein the radiation surface comprises a supporting layer, a circuit layer, a feeder line layer, a resistance layer, a wave-transmitting layer and a resonance layer;
a cure setting module configured to dip cure set the braid blank;
and the post-processing module is configured for demolding, shaping and post-processing the woven fabric blank to obtain the final multi-layer curved antenna radiation surface.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
It should be noted that, for the sake of simplicity of description, the foregoing method embodiments are expressed as a series of combinations of actions, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously according to the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.
Claims (10)
1. The three-dimensional weaving manufacturing method of the radiation surface of the multilayer curved antenna is characterized by comprising the following steps of:
step 1, braiding a supporting structure on a curved surface die to form a supporting layer;
Step 2, weaving a surface circuit on the supporting layer to form a circuit layer;
Step 3, pre-burying a feeder line on the circuit layer to form a feeder line layer;
step 4, weaving a resistor device on the feeder line layer to form a resistor layer;
Step 5, weaving a wave-transmitting structure on the resistance layer to form a wave-transmitting layer;
step 6, weaving a wave-absorbing resonance structure on the wave-transmitting layer to form a resonance layer, wherein the support layer, the circuit layer, the feeder layer, the resistor layer, the wave-transmitting layer and the resonance layer form a radiation surface together;
step 7, repeating the steps 1-6, weaving a plurality of layers of radiation surfaces, and interconnecting and reinforcing the radiation surfaces to form a woven fabric blank;
step 8, dipping, solidifying and shaping the knitted fabric blank;
and 9, demolding, shaping and post-processing the braided fabric blank to obtain the final multi-layer curved antenna radiation surface.
2. The method for manufacturing the three-dimensional weaving of the radiation surface of the multilayer curved-surface antenna according to claim 1, wherein in the step 1, the supporting layer comprises a supporting structure woven based on reinforcing fibers, the thickness range of the supporting layer comprises 0.5mm-1.0mm, and in the step 2, the circuit layer comprises a circuit pattern woven based on a mixture of conductive fibers and reinforcing fibers, and the thickness range of the circuit layer comprises 0.05mm-0.15mm.
3. The method for manufacturing the three-dimensional weaving of the radiation surface of the multilayer curved-surface antenna according to claim 1, wherein in the step 3, the feeder layer comprises a feeder woven based on feeder fibers, the feeder is connected with the circuit layer and led out along a woven surface circuit, the feeder fibers comprise one or more multilayer fibers subjected to metal surface treatment, the inner core is a non-metal fiber, and the outer layer is a metal layer.
4. The method according to claim 1, wherein in the step 4, the resistive layer comprises a square resistor woven based on a resistive fiber material, and the thickness of the resistive layer is in a range of 0.1mm to 0.3mm.
5. The method according to claim 1, wherein in step 5, the wave-transmitting layer comprises a wave-transmitting structure woven based on wave-transmitting fibers and having a predetermined weaving gap, and the thickness of the wave-transmitting layer is in the range of 0.1mm to 0.3mm.
6. The method according to claim 1, wherein in step 6, the resonance layer includes a resonance structure substrate woven based on reinforcing fibers, a conductive resonance circuit pattern woven based on conductive fibers, and a resonance resistor woven based on a resistive fiber material at a gap of the conductive resonance circuit pattern.
7. The method for manufacturing the three-dimensional weave of the radiation surface of the multi-layer curved surface antenna according to claim 1, wherein in the step 7, the interconnection reinforcement between the radiation surfaces of the layers comprises the steps of inserting, interweaving and arranging the reinforcing fibers in the vertical direction between the resonance layer of the radiation surface of the upper layer and the supporting layer of the radiation surface of the lower layer.
8. The method for manufacturing the three-dimensional braiding of the radiation surface of the multi-layer curved-surface antenna according to claim 1, wherein in the step 8, the step of dipping, solidifying and shaping the braided fabric blank comprises the steps of placing the braided fabric blank in a hot-press forming die, dipping resin and protecting a feed line exposed port, and heating, pressurizing and solidifying to realize shaping of the radiation surface of the antenna.
9. The method for manufacturing the three-dimensional braiding of the radiation surface of the multi-layer curved-surface antenna according to claim 1, wherein in the step 9, the step of demoulding, shaping and post-processing the braided fabric blank comprises the steps of taking out the braided fabric blank impregnated with resin after solidification, removing edge burrs and superfluous glue tumors, and finishing the contour by adopting a numerical milling method.
10. A system for three-dimensional braiding of a radiation surface of a multilayer curved antenna, comprising:
A support structure braiding module configured to braid a support structure over a curved mold to form a support layer;
a surface circuit braiding module configured to braid surface circuits on the support layer to form a circuit layer;
The feeder line embedding module is configured to embed a feeder line on the circuit layer to form a feeder line layer;
A resistive device braiding module configured to braid a resistive device on the feeder layer forming a resistive layer;
the wave-transmitting structure braiding module is configured to braid a wave-transmitting structure on the resistance layer to form a wave-transmitting layer;
a wave-absorbing resonant structure braiding module configured to braid a wave-absorbing resonant structure on the wave-transparent layer to form a resonant layer;
the interlayer connection module is configured to interconnect and reinforce the multi-layer radiation surface to form a braided fabric blank, wherein the radiation surface comprises a supporting layer, a circuit layer, a feeder line layer, a resistance layer, a wave-transmitting layer and a resonance layer;
a cure setting module configured to dip cure set the braid blank;
and the post-processing module is configured for demolding, shaping and post-processing the woven fabric blank to obtain the final multi-layer curved antenna radiation surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511559534.2A CN121035603A (en) | 2025-10-29 | 2025-10-29 | A method and system for manufacturing three-dimensional braiding of the radiating surface of a multi-layer curved antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511559534.2A CN121035603A (en) | 2025-10-29 | 2025-10-29 | A method and system for manufacturing three-dimensional braiding of the radiating surface of a multi-layer curved antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN121035603A true CN121035603A (en) | 2025-11-28 |
Family
ID=97770969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202511559534.2A Pending CN121035603A (en) | 2025-10-29 | 2025-10-29 | A method and system for manufacturing three-dimensional braiding of the radiating surface of a multi-layer curved antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN121035603A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090136657A1 (en) * | 2007-02-27 | 2009-05-28 | Microcontinuum, Inc. | Methods and systems for forming flexible multilayer structures |
| CN106142755A (en) * | 2015-05-11 | 2016-11-23 | 阿迪达斯股份公司 | There is the multilamellar fabric of selective radiation wave filter |
| CN117559105A (en) * | 2023-11-13 | 2024-02-13 | 北京无线电测量研究所 | Film antenna |
| CN119764865A (en) * | 2025-01-09 | 2025-04-04 | 北京理工大学 | Circularly polarized antenna, integration method and terminal based on multi-mode frequency selective surface |
| CN120237412A (en) * | 2025-05-29 | 2025-07-01 | 中国电子科技集团公司第二十九研究所 | A precision weaving manufacturing method for antenna radiation array with arbitrary curved surface |
-
2025
- 2025-10-29 CN CN202511559534.2A patent/CN121035603A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090136657A1 (en) * | 2007-02-27 | 2009-05-28 | Microcontinuum, Inc. | Methods and systems for forming flexible multilayer structures |
| CN106142755A (en) * | 2015-05-11 | 2016-11-23 | 阿迪达斯股份公司 | There is the multilamellar fabric of selective radiation wave filter |
| CN117559105A (en) * | 2023-11-13 | 2024-02-13 | 北京无线电测量研究所 | Film antenna |
| CN119764865A (en) * | 2025-01-09 | 2025-04-04 | 北京理工大学 | Circularly polarized antenna, integration method and terminal based on multi-mode frequency selective surface |
| CN120237412A (en) * | 2025-05-29 | 2025-07-01 | 中国电子科技集团公司第二十九研究所 | A precision weaving manufacturing method for antenna radiation array with arbitrary curved surface |
Non-Patent Citations (2)
| Title |
|---|
| 姚穆: "《纺织材料学 第5版》", 31 December 2019, 中国纺织出版社, pages: 170 - 171 * |
| 田明伟: "《十四五普通高等教育本科部委级规划教材 智能电子纺织品与可穿戴技术》", 31 May 2024, 中国纺织出版社, pages: 149 - 150 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110323560B (en) | Antenna device, antenna module, and electronic apparatus | |
| US11349217B2 (en) | Method for integrating antennas fabricated using planar processes | |
| US7461444B2 (en) | Method for constructing antennas from textile fabrics and components | |
| US7468709B2 (en) | Method for mounting a radiator in a radio device and a radio device | |
| KR100371877B1 (en) | Wiring board, wiring board fabrication method, and semiconductor package | |
| US7006050B2 (en) | Low cost antennas manufactured from conductive loaded resin-based materials having a conducting wire center core | |
| JP2002505537A (en) | Flexible diversity antenna | |
| US9425501B2 (en) | Composite thermoformed assembly | |
| TW201030864A (en) | Antennas conducive to semiconductor packaging technology and a process for their manufacture | |
| KR20140034148A (en) | Wireless antenna module and method for producing same | |
| CN115663430B (en) | Spiral winding shaft type microstrip filter and preparation method thereof | |
| US7230572B2 (en) | Low cost antenna devices comprising conductive loaded resin-based materials with conductive wrapping | |
| CN120237412B (en) | Method for manufacturing antenna radiation array face with arbitrary curved surface by precise braiding | |
| CN112829400A (en) | A structure/stealth integrated composite material and preparation method thereof | |
| US6940468B2 (en) | Transformers or inductors (“transductors”) and antennas manufactured from conductive loaded resin-based materials | |
| US11710646B2 (en) | Fan-out packaging method and fan-out packaging plate | |
| CN121035603A (en) | A method and system for manufacturing three-dimensional braiding of the radiating surface of a multi-layer curved antenna | |
| CN114552200B (en) | Curved surface multilayer three-dimensional interconnection structure | |
| US20050062669A1 (en) | Low cost antenna devices comprising conductive loaded resin-based materials with conductive threading or stitching | |
| CA2461969C (en) | Low cost antennas manufactured from conductive loaded resin-based materials having a conductive wire center core | |
| CN117791122A (en) | Preparation method of curved conformal radome based on multilayer frequency selective surface | |
| KR102005548B1 (en) | Antenna module for mobile communication devices and manufacturing method for the same | |
| CN108631051B (en) | Antenna structure, intelligent terminal device and manufacturing method of antenna structure | |
| CA2457610A1 (en) | Low cost antennas and eletromagnetic (emf) absorption in electronic circuit packages or transceivers using conductive loaded resin-based materials | |
| CN112952394A (en) | Frequency selective surface structure and manufacturing method thereof, and antenna cover and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |