CN106340721A - Antenna casing manufacturing method, antenna system and manufacturing method thereof - Google Patents
Antenna casing manufacturing method, antenna system and manufacturing method thereof Download PDFInfo
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- CN106340721A CN106340721A CN201510406200.1A CN201510406200A CN106340721A CN 106340721 A CN106340721 A CN 106340721A CN 201510406200 A CN201510406200 A CN 201510406200A CN 106340721 A CN106340721 A CN 106340721A
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Abstract
The invention provides an antenna casing manufacturing method, an antenna system and a manufacturing method thereof. The manufacturing method comprises the steps that a structural foam layer is laid on the inner surface of a mold; an antenna is wrapped by the structural foam layer in the mold; and the structural foam layer is cured to form a casing enclosing the antenna. Due to the fact that the casing on the surface of the antenna is the structural foam layer, the structural foam layer has the advantages of low dielectric constant, low dielectric loss and large mechanical strength. The casing is applied to the outer surface of the antenna, which effectively reduces the phenomenon of metal dropping on the surface of the antenna. The reliability of the antenna is improved. The impact on antenna gain is reduced. The antenna has the advantages of greater gain and better radiation performance.
Description
Technical field
The present invention relates to antenna technical field, in particular to a kind of manufacture method of antenna casing, antenna system and its system
Make method.
Background technology
Antenna is a kind of changer, and it, the guided wave of transmission above-the-line promotion, is transformed into the electromagnetic wave propagated in unbounded medium,
Or carry out contrary conversion, be for launching or receiving the part of electromagnetic wave in radio.Antenna applications are in numerous
In field, wherein aircraft antenna is exactly for radiating and receiving the device of radio wave on a kind of aircraft, and its principle just makes transmitting sky
The alternating current magnetic energy that agitator is sent is changed into the electromagnetic wave energy propagated to certain space by line, and aircraft antenna needs with volume
Feature little, lightweight and that intensity is high.
A kind of space flight and aviation antenna common in the art includes a film dielectric layer and is attached to the metal of film dielectric layer both sides
Structure sheaf, and the feeder line being formed on film dielectric layer and being connected with described structured metal layer.However, antenna of the prior art
Do not have shell to protect, the phenomenon that the metal of antenna surface comes off therefore easily occurs, further result in the performance failure of antenna.
Content of the invention
Present invention is primarily targeted at providing a kind of manufacture method of antenna casing, antenna system and preparation method thereof, to solve
The metal of antenna surface of the prior art easily comes off, and makes antenna have more preferable radiance and bigger gain.
To achieve these goals, according to an aspect of the invention, it is provided a kind of manufacture method of antenna casing, making side
Method includes: lays structural foam layer on the inner surface of mould；The structural foam layer in mould is made to wrap up antenna；Right
Structural foam layer carries out cured to form the shell of parcel antenna.
Further, structural foam layer is by selected from Polymethacrylimide, polrvinyl chloride, polyethylene terephthalate
Any one or more in ester and styrene-acrylonitrile is made.
Further, before the step of structural foam layer is laid on the inner surface of mould, to formation structural foam layer
Structural foam carry out baking process.
Further, the temperature that baking is processed is 105～120 DEG C, and the time that baking is processed is 1～6h.
Further, on the inner surface of mould lay structural foam layer step include: provide by first point of mould and with
The mould of first point of mould symmetrically arranged second point of mould composition；First structure foam material is laid on the surface of first point of mould
The bed of material, and the second structural foam layer is laid on the surface of second point of mould, and first structure sponge layer and the first knot
Structure sponge layer forms structural foam layer.
Further, after laying the step of structural foam layer on the inner surface of mould, manufacture method is additionally included in structure
The step to form adhesive layer for the adhesive coating on sponge layer.
Further, on structural foam layer adhesive coating with form adhesive layer step after, to being coated with adhesive layer
Structural foam layer carry out evacuation process, the time that evacuation is processed is 10～20min.
Further, by first point of mould and second point of mould matched moulds so that structural foam layer wraps up antenna；Form parcel sky
After the shell of line, by shell and antenna break away from moulds.
Further, in the step of cured, solidification temperature is 100～140 DEG C, and hardening time is 120～180min.
Further, the density of Polymethacrylimide is 45～60kg/m3.
According to a further aspect in the invention, there is provided a kind of manufacture method of antenna system, manufacture method includes: prepares antenna；
Shell using above-mentioned manufacture method preparation parcel antenna.
Further, the step preparing antenna includes: preparation core layer, and core layer includes structural foam；In antenna mold
Inner surface on lay the fiber prepreg bed of material；The side of antenna mold is connected so that the fiber prepreg bed of material wraps up core layer；Carry out
Cured is so that the fiber prepreg bed of material solidify to form fiber composite layer；Gold is formed on the outer surface of fiber composite layer
Belong to structure sheaf.
According to a further aspect in the invention, there is provided a kind of antenna system, including the shell of antenna and parcel antenna, shell is by solid
Structural foam composition after change.
Further, antenna includes fiber composite layer, core layer and structured metal layer, and core layer is arranged at fiber composite material
In the bed of material, structured metal layer is arranged on the outer surface of fiber composite layer, and core layer includes structural foam, and structure
Sponge layer includes Polymethacrylimide.
Application technical scheme, the invention provides a kind of antenna casing and preparation method thereof, this manufacture method includes:
Structural foam layer is laid on the inner surface of mould；The structural foam layer in mould is made to wrap up antenna；To structural foam
Material layer carries out cured to form the shell of parcel antenna.Shell due to being formed at antenna surface is including structural foam material
The bed of material, and structural foam layer has relatively low dielectric constant, relatively low dielectric loss and larger mechanical strength, thus will
Above-mentioned shell is applied to antenna outer surface and can not only efficiently reduce the phenomenon that the metal of antenna surface comes off, and improves antenna
Reliability, additionally it is possible to reduce the impact to antenna gain, makes antenna have bigger gain and more preferable radiance.
Brief description
The Figure of description constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic flow sheet of the manufacture method of the antenna casing that embodiment of the present invention is provided；
Fig. 2 shows the cross-sectional view of the antenna system that embodiment of the present invention is provided.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
It should be noted that term used herein above is merely to describe specific embodiment, and it is not intended to restricted root according to this Shen
Illustrative embodiments please.As used herein, unless the context clearly indicates otherwise, otherwise singulative is also intended to
Including plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " inclusion ", its
Indicate existing characteristics, step, operation, device, assembly and/or combinations thereof.
For the ease of description, space relative terms can be used here, such as " ... on ", " ... top ", " ...
Upper surface ", " above " etc., for describing as the space of a device shown in the figure or feature and other devices or feature
Position relationship.It should be appreciated that space relative terms are intended to comprise making in addition to the orientation described by device is in figure
With or operation in different azimuth.For example, if the device in accompanying drawing is squeezed, it is described as " on other devices or construction
Side " or " other devices or construction on " device after will be positioned as " other devices or construction below " or "
Under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " ...
Two kinds of lower section " orientation.This device can also position (ratating 90 degrees or be in other orientation) by other different modes, and to this
In the description relatively of the space that used make respective explanations.
As described in background technology, antenna of the prior art does not have shell to protect, and antenna surface therefore easily
The phenomenon that metal comes off, further result in the performance failure of antenna.Present inventor is studied for the problems referred to above,
Propose a kind of manufacture method of antenna casing, as shown in figure 1, this manufacture method includes: laying knot on the inner surface of mould
Structure sponge layer；The structural foam layer in mould is made to wrap up antenna；Structural foam layer is carried out with cured with shape
Become the shell of parcel antenna.
It is structural foam layer due to being formed at the shell of antenna surface in above-mentioned preparation method, and structural foam layer has
Relatively low dielectric constant, relatively low dielectric loss and larger mechanical strength, wherein, dielectric constant is about 1.05～1.13, thus
Above-mentioned shell is applied to antenna outer surface and can not only efficiently reduce the phenomenon that the metal of antenna surface comes off, improve antenna
Reliability additionally it is possible to reduce impact to antenna gain, make antenna have bigger gain and more preferable radiance.
The illustrative embodiments of the manufacture method of the antenna casing providing according to the present invention are provided.However,
These illustrative embodiments can be implemented by many different forms, and should not be construed to be limited solely to described herein
Embodiment.It should be appreciated that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and
The design of these illustrative embodiments is fully conveyed to those of ordinary skill in the art.
First, prepare antenna.The processing step preparing antenna can be set the system it is preferable that antenna according to the actual requirements
Preparation Method comprises the following steps: preparation core layer, and core layer includes structural foam；Fiber is laid on the inner surface of mould
Prepreg；The side of mould is connected so that the fiber prepreg bed of material wraps up core layer；Carry out cured so that fiber prepreg material
Layer solidify to form fiber composite layer；Structured metal layer is formed on the outer surface of fiber composite layer.Above-mentioned preparation method
In be made up of structural foam due to core layer, structural foam has excellent specific stiffness and a specific strength, compression, stretching,
Cut out splendid with bending property, and very light in weight so that the antenna including fiber composite layer and core layer have very high
Mechanical strength and very light weight.Said structure sponge layer can be by selected from Polymethacrylimide, polrvinyl chloride, poly-
Any one or more in ethylene glycol terephthalate, styrene-acrylonitrile is made.Because said structure sponge layer has
Relatively low dielectric constant, about 1.05～1.13, thus using the shell of above-mentioned antenna, the impact to antenna gain can be reduced,
Antenna is made to have bigger gain and more preferable radiance.
After completing to prepare the step of antenna, structural foam layer is laid on the inner surface of mould.Due to structural foam material
Material has relatively low dielectric constant (about 1.05～1.13), relatively low dielectric loss and larger mechanical strength such that it is able to reduce
Impact to antenna gain, makes antenna have bigger gain and more preferable radiance.Preferably, structural foam layer by
Polymethacrylimide forms.Polymethacrylimide (pmi) is the rigid foam of a kind of lightweight, closed pore, has
Good mechanical property, heat distortion temperature and chemical stability, the compatibility with other resins is good, machining easily, and heat
Molding easily, and then makes there is very high mechanical strength and very light weight including the antenna casing of structural foam layer.More
Preferably, the density of Polymethacrylimide is 45～60kg/m3.In above-mentioned preferred parameter area, including structural foam
The antenna casing of material layer can not only have larger gain and preferable radiance additionally it is possible to have higher mechanical strength
Lighter weight.
In a preferred embodiment, before the step of structural foam layer is laid on the inner surface of mould, acceptable
Baking process is carried out to the structural foam forming structural foam layer.Above-mentioned baking processes and can make structural foam layer
Solidifying and setting further, thus improve the mechanical strength of structural foam layer.At the temperature preferably baking that above-mentioned baking is processed
The temperature of reason is 105～120 DEG C, and the time that baking is processed is 1～6h.In above-mentioned preferred parameter area, structure can be made to steep
On the basis of foam material layer has higher mechanical strength, its performance will not be subject to larger destroying.
The step laying structural foam layer on the inner surface of mould can have many kinds, in a preferred embodiment,
The step laying structural foam layer on the inner surface of mould includes: provides by first point of mould and symmetrical with first point of mould
The mould of second point of mould composition of setting；Lay first structure sponge layer on the surface of first point of mould, and second
The second structural foam layer is laid on the surface dividing mould, and first structure sponge layer and the second structural foam layer group
Become structural foam layer.Above-mentioned preferred embodiment can form said structure merely with the mould being formed by two points of moulds
Sponge layer, and then form the antenna casing needed for the application.
It is preferable that manufacture method is additionally included in structure bubble after the fiber prepreg bed of material being layed in the step on the inner surface of mould
The step to form adhesive layer for the adhesive coating in foam material layer.Above-mentioned adhesive layer makes to be had between structural foam layer and antenna
Stronger connectivity.The material forming adhesive layer can be adhesive common in the art, such as thermoplastics type's adhesive, heat
Curable type adhesive, synthetic rubber type adhesive and rubber resin agent.
Above-mentioned preferred embodiment in, on structural foam layer formed adhesive layer step after, can also be to covering
The structural foam layer having adhesive layer carries out evacuation process, and the time that evacuation is processed is 10～20min.Evacuation processes energy
Enough reduce the harm that steam in technique brings structural foam layer, and enable adhesive layer preferably to stick to structural foam material
On the bed of material.
After completing to lay the step of structural foam layer on the inner surface of mould, make the structural foam layer in mould
Parcel antenna.When preparing sky from by first point of mould and symmetrically arranged second point of mould forms with first point of mould mould
During line, can be by first point of mould and second point of mould matched moulds so that structural foam layer wraps up antenna.
After completing for the structural foam layer in mould to wrap up the step of antenna, structural foam layer is carried out at solidification
Reason is to form the shell of parcel antenna.The mechanical strength of structural foam layer can be improved by above-mentioned cured further,
And make the structure that structural foam layer and the solidification of internal antenna are integrated.The process conditions of cured can be according to reality
Demand is set it is preferable that solidification temperature is as 100～140 DEG C, and hardening time is 120～180min.In above-mentioned preferred ginseng
The structural foam layer being formed in number scope has higher mechanical strength, and has more between structural foam layer and antenna
Good adhesion.Further, after forming structural foam layer, by the shell of antenna and antenna and break away from moulds.
According to a further aspect in the invention, there is provided a kind of antenna system, as shown in Figure 2.This antenna system includes antenna 10 He
Wrap up the shell 10 of antenna 10, and the shell 10 of antenna 10 is made up of the structural foam after solidifying.Preferably, structure bubble
Foam material layer is by Polymethacrylimide, polrvinyl chloride, polyethylene terephthalate, styrene-acrylonitrile
Any one or more is made.Shell 10 due to being formed at antenna 10 surface is said structure sponge layer, and structural foam
Material layer has relatively low dielectric constant (about 1.05～1.13), relatively low dielectric loss and larger mechanical strength, thus not only
The phenomenon that the metal on antenna 10 surface comes off can be efficiently reduced, improve the reliability of antenna 10 additionally it is possible to reduce to sky
The impact of line 10 gain, makes antenna 10 have bigger gain and more preferable radiance.Preferably, the above-mentioned sky of the present invention
Linear system system is applied in space technology field.
In the above-mentioned antenna system of the application, the species of antenna 10 and structure can be set according to the actual requirements it is preferable that
Antenna 10 includes fiber composite layer 110, core layer 120 and structured metal layer 130, and core layer 120 is arranged at fiber composite
In material layer 110, structured metal layer 130 is arranged on the outer surface of fiber composite layer 110, and core layer 120 includes structure
Foamed materialss.Because core layer 120 is made up of structural foam, structural foam has excellent specific stiffness and specific strength,
Compress, stretch, cutting out, and very light in weight splendid with bending property, so that including fiber composite layer 110 and core layer
120 antenna 10 has very high mechanical strength and very light weight.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect: the invention provides
A kind of antenna casing and preparation method thereof, this manufacture method includes: lays structural foam layer on the inner surface of mould；Make
Structural foam layer parcel antenna in mould；Structural foam layer is carried out with cured to form the shell of parcel antenna.
Shell due to being formed at antenna surface is structural foam layer, and structural foam layer has relatively low dielectric constant, relatively
Low dielectric loss and larger mechanical strength, wherein, dielectric constant is about 1.05～1.13, thus above-mentioned shell is applied to sky
Line outer surface can not only efficiently reduce the phenomenon that the metal of antenna surface comes off, and improves the reliability of antenna additionally it is possible to subtract
Few impact to antenna gain, makes antenna have bigger gain and more preferable radiance.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art,
The present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made, equivalent,
Improve etc., should be included within the scope of the present invention.
Claims (14)
1. a kind of manufacture method of antenna casing is it is characterised in that described manufacture method includes:
Structural foam layer is laid on the inner surface of mould；
The described structural foam layer in described mould is made to wrap up described antenna (10)；
Described structural foam layer is carried out with cured to form the shell (20) wrapping up described antenna (10).
2. manufacture method according to claim 1 is it is characterised in that described structural foam layer is by selected from polymethyl
Any one or more in acid imide, polrvinyl chloride, polyethylene terephthalate and styrene-acrylonitrile is made.
3. manufacture method according to claim 1 is it is characterised in that lay described structure bubble on the inner surface of described mould
Before the step of foam material layer, baking process is carried out to the structural foam forming described structural foam layer.
4. manufacture method according to claim 3 is it is characterised in that the temperature that described baking is processed is 105～120 DEG C, described
The time that baking is processed is 1～6h.
5. manufacture method according to claim 1 is it is characterised in that lay described structure bubble on the inner surface of described mould
The step of foam material layer includes:
There is provided by first point of mould and symmetrically arranged second point of mould forms with described first point of mould described mould；
Lay first structure sponge layer on the surface of described first point of mould, and the surface in described second point of mould
Upper laying the second structural foam layer, and described first structure sponge layer and described first structure sponge layer group
Become described structural foam layer.
6. manufacture method according to claim 1 is it is characterised in that lay described structure bubble on the inner surface of described mould
After the step of foam material layer, described manufacture method is additionally included on described structural foam layer adhesive coating to be formed
The step of adhesive layer.
7. manufacture method according to claim 6 is it is characterised in that coat described gluing on described structural foam layer
Agent with form described adhesive layer step after, the described structural foam layer being coated with described adhesive layer is carried out take out true
Vacancy is managed, and the time that described evacuation is processed is 10～20min.
8. manufacture method according to claim 5 it is characterised in that
By described first point of mould and described second point of mould matched moulds so that described structural foam layer wraps up described antenna
(10)；
After forming the shell (20) of the described antenna of parcel (10), by described shell (20) and described antenna (10)
Depart from described mould.
9. manufacture method according to claim 1 is it is characterised in that in the step of described cured, solidification temperature is
100～140 DEG C, hardening time is 120～180min.
10. manufacture method according to claim 2 is it is characterised in that the density of Polymethacrylimide is 45～60kg/m3.
A kind of 11. manufacture methods of antenna system are it is characterised in that described manufacture method includes:
Prepare antenna (10)；
Wrap up the shell (20) of described antenna (10) using the manufacture method preparation any one of claim 1 to 10.
12. manufacture methods according to claim 11 are it is characterised in that the step preparing described antenna (10) includes:
Preparation core layer, described core layer includes structural foam；
The fiber prepreg bed of material is laid on the inner surface of antenna mold；
The side of described antenna mold is connected so that the described fiber prepreg bed of material wraps up described core layer；
Carry out cured so that the described fiber prepreg bed of material solidify to form fiber composite layer；
Structured metal layer is formed on the outer surface of described fiber composite layer.
A kind of 13. antenna systems are it is characterised in that including antenna (10) and the shell (20) of the described antenna of parcel (10), described
Shell (20) is made up of the structural foam after solidifying.
14. antenna systems according to claim 13 it is characterised in that described antenna (10) include fiber composite layer (110),
Core layer (120) and structured metal layer (130), described core layer (120) is arranged at described fiber composite layer (110)
In, described structured metal layer (130) is arranged on the outer surface of described fiber composite layer (110), described core layer
(120) include structural foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406200.1A CN106340721A (en) | 2015-07-10 | 2015-07-10 | Antenna casing manufacturing method, antenna system and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406200.1A CN106340721A (en) | 2015-07-10 | 2015-07-10 | Antenna casing manufacturing method, antenna system and manufacturing method thereof |
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| CN106340721A true CN106340721A (en) | 2017-01-18 |
Family
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| CN201510406200.1A Pending CN106340721A (en) | 2015-07-10 | 2015-07-10 | Antenna casing manufacturing method, antenna system and manufacturing method thereof |
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| CN111344898A (en) * | 2017-09-30 | 2020-06-26 | 高通股份有限公司 | Antenna module configuration |
| CN113990588A (en) * | 2020-07-27 | 2022-01-28 | 北京小米移动软件有限公司 | Middle frame, terminal and manufacturing method of middle frame |
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Application publication date: 20170118 |