CN205564983U - High band low -loss antenna house - Google Patents
High band low -loss antenna house Download PDFInfo
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- CN205564983U CN205564983U CN201620322812.2U CN201620322812U CN205564983U CN 205564983 U CN205564983 U CN 205564983U CN 201620322812 U CN201620322812 U CN 201620322812U CN 205564983 U CN205564983 U CN 205564983U
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- antenna
- antenna house
- polyimides
- germanium film
- knuckle
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Abstract
The all novel high band low -loss antenna house that provides of this reality, the single face that adopts thickness to be 50um plates germanium polyimide film preparation polyimide and plates the germanium membrane, and it plates the germanium membrane by antenna house support, antenna house clamp plate, polyimide and mounting screws constitutes. Therefore, the utility model discloses a ka frequency channel low -loss microwave antenna cover can be regarded as to the antenna house, and adjusting antenna battle array face to the distance of rete makes the antenna have optimum radio frequency transmission performance, has stronger adaptability to complicated or irregular antenna element or antenna array to can effective isolation outer thermal current is to antenna array influence of temperature, and production manufacturability is well just with low costs.
Description
Technical field
This utility model belongs to microwave antenna art field, relates to high band low loss antenna cover, is specifically related to can be used for Ka frequency
The polyimides germanium film antenna house with low lossy microwave, low cost, structure certain features of section, is widely used in microwave
The protection of middle low profile antenna array and front temperature that loss has higher requirements control, and are particularly suited for the spaceborne active phase of Ka frequency range
Control array antenna.
Background technology
In field of microwave antennas, antenna house destroys and shadow for antenna array or antenna element are protected against external environment condition
Ring, it is ensured that antenna can normally work under design conditions.
The antenna house form of prior art includes honeycomb sandwich construction antenna house, fiber-reinforced resin antenna house and politef
Etc. nonmetallic materials thin plate or film antenna cover.
Honeycomb sandwich construction antenna house is used for Large Radar Antenna, uses the nonmetal version adding eyelid covering of non-metal honeycomb,
There is multiple sandwich form, be characterized in good mechanical performance, antenna array or unit are had preferable mechanical protection, to X
Microwave signal below wave band has preferably by property, has certain lossy microwave.
The many antennas due to middle-size and small-size actinal surface of fiber-reinforced resin antenna house or antenna element, can produce complexity by compression molding
Profile to mate Antenna aperture demand, the antenna house of the widely used this version of spaceborne helical antenna.This type of antenna house needs
Wanting vacuum compression molding, manufacturing process is complicated, and fabrication cycle is long, relatively costly, the glass fibre used and epoxy resin pair
Considerable influence is had in high-frequency microwave signal transmission performance.
Nonmetallic materials thin film or thin plate antenna house, due to himself feature, are typically directly covered on antenna array or actinal surface, this
Just require antenna array or unit rules, smooth, it is impossible to be applicable to antenna unit structure complicated or to antenna house and antenna array away from
From the situation having particular/special requirement.
In sum, existing technical scheme there is problems in that
1) honeycomb interlayer antenna house and fiber-reinforced resin antenna house feature determine it and are not suitable for having higher requirements lossy microwave
High-frequency microwave signal transmission, microwave signal more than especially Ka frequency range；
2) honeycomb interlayer antenna house and fiber-reinforced resin antenna cover structure complex process, the production cycle is long, and cost is high；
3) nonmetal thin plate or film antenna cover are not applied for antenna unit structure complexity or have antenna house with antenna array distance
The antenna of particular/special requirement.
Utility model content
In order to solve the deficiencies in the prior art, the utility model proposes a kind of Ka of can be used for frequency range has low lossy microwave,
Low cost, the polyimides germanium film antenna house of structure certain features.
This utility model provides a kind of high band low loss antenna cover, the one side plating germanium polyimide film using thickness to be 50um
Making polyimides germanium film, it is made up of antenna house support, antenna house pressing plate, polyimides germanium film and installation screw.
Specifically, the solar absorptance of polyimides germanium film is not more than 0.45, and hemispherical emissivity is not less than 0.7, surface resistivity
1107-5108 Ω, C-band, the lossy microwave of Ku, Ka wave band are not more than 0.1dB.
In this utility model, antenna house support is metal framework structure and at least includes mounting flange, annular gusset, ring muscle
Surrounding knuckle, ring top rib portion knuckle, ventilating groove and installing hole, wherein, mounting flange for antenna house with its on its
The installation of his parts, and polyimides germanium film is pressed onto the upper surface of mounting flange by antenna house pressing plate；The top of annular gusset
Polyimides germanium film is installed；Ring top rib portion knuckle is positioned at the end face of annular gusset and as semicircular knuckle,
Thus avoid polyimides germanium film to be torn by the seamed edge on annular gusset at extended state；Ring muscle surrounding knuckle is positioned at annular
The surrounding of gusset and as large-sized knuckle, is arranged on, for smoothing processing polyimides germanium film, the pleat being here formed as
Wrinkle, thus avoid tearing at edge；Ventilating groove, quantity is four and is symmetrically distributed in the bottom of mounting flange, for
Exit under vacuum environment, thus avoid the inside and outside differential pressure damage to polyimides germanium film layer；Installing hole, for antenna house support
Fixing with antenna house pressing plate, and antenna house and antenna array is fixing.
Preferably, the height of annular gusset is adjustable, so that the distance electricity between antenna array and polyimides germanium film
Gas best performance.
Antenna house pressing plate is metal framework structure, and it includes mounting flange, annular gusset, ring muscle surrounding knuckle and peace
Dress hole, wherein, mounting flange is for the compression to polyimides germanium film layer, and its upper surface is fixed with polyimides plating
Germanium film layer；Annular gusset is for increasing the contact area at pressing position and polyimides germanium film layer, to form L-type pressing, from
And keep the tightening force to polyimides germanium film layer；Ring muscle surrounding knuckle is corresponding after coupling is assembled to antenna house framework
The fillet at position；Installing hole for being fixed to the upper surface of antenna house framework by mounting flange.
Preferably, the height of annular gusset is the size with polyimides germanium film layer and stress and changes.
It addition, the inner side of annular gusset in antenna house pressing plate all reserves polyamides Asia with the outside of the annular gusset in antenna house support
The thickness of amine germanium film layer, thus form slight interference and coordinate to increase lateral pressure force.
The size of knuckle is chosen as: on the basis of antenna house framework corresponding site fillet, reserve certain interval to mate this
The fold that place's polyimides germanium film turnover occurs.
Polyimides germanium film layer cropped go out appropriately sized to mate antenna house framework, and monolateral when cutting reserve 50mm
Surplus, in order to the tightening force that applied during tension during assembling.
Therefore, compared with prior art, this utility model can realize following beneficial effect:
1) high-frequency microwave signal can be realized low-loss, thus can be as Ka frequency range low-loss microwave antenna house；
2) adjustable antenna front is to the distance of film layer, makes antenna have optimum radio frequency transmission performance；
3) for complicated or fractal antenna unit or antenna array, there is stronger adaptability；
4) Orbital heat flux impact on antenna array temperature can be effectively isolated；
5) antenna cover structure of the present utility model is simple, and processing technology is good, low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high band low loss antenna cover that this utility model relates to；
Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of the high band low loss antenna cover shown in Fig. 1；
Fig. 3 is the structural representation of the antenna house support of the high band low loss antenna cover shown in Fig. 1；And
Fig. 4 is the structural representation of the antenna house pressing plate of the high band low loss antenna cover shown in Fig. 1.
Detailed description of the invention
It will be appreciated that the utility model proposes the low lossy microwave that has of a kind of Ka of can be used for frequency range, low cost, structure is reliable
Polyimides germanium film antenna house of feature and preparation method thereof.Polyimides germanium film is by the one side plating that a layer thickness is 50um
Germanium polyimide film is made, and has good thermal property, mechanical property, optical property, electric property.Prior art
Polyimides germanium film thermal control, antistatic, microwave transparent performance design technology, large area polyimide substrate are broken through and have grasped
The key technologies such as germanium film uniform deposition technology, its performance indications solar absorptance is not more than 0.45, and hemispherical emissivity is not less than 0.7,
Surface resistivity 1107-5108 Ω, C-band, the lossy microwave of Ku, Ka wave band are not more than 0.1dB.
High band low loss antenna cover of the present utility model is by antenna house support, antenna house pressing plate, polyimides germanium film and installation
Screw forms.
Antenna house support is metal framework structure, including mounting flange, annular gusset, ring muscle surrounding knuckle, ring top rib portion
Knuckle, ventilating groove, installing hole.Mounting flange is for the installation of antenna house with miscellaneous part, and antenna house pressing plate will be poly-simultaneously
Acid imide germanium film is pressed onto the upper surface of mounting flange；Annular gusset, for polyimides germanium film is installed to its top, can lead to
Crossing design annular gusset height makes the distance electric property between antenna array and polyimides germanium film optimum；In ring top rib face it is
Semicircle knuckle, can avoid polyimides germanium film to be torn by the seamed edge on annular gusset at extended state；In environment surrounding
For large scale knuckle, it is arranged on, for smoothing processing polyimides germanium film, the fold being here formed as, to avoid at edge
Tear；Bottom mounting flange, there are four symmetrical ventilating grooves, exit under vacuum environment, it is to avoid inside and outside differential pressure is to poly-
The damage of acid imide germanium film layer, fixing for antenna house support and antenna house pressing plate of installing hole, and antenna house and antenna array
Fixing of face.
Antenna house pressing plate is metal framework structure, including mounting flange, annular gusset, ring muscle surrounding knuckle, installing hole.
Film layer, for the compression to polyimides germanium film layer, is fixed to the upper surface of antenna house flange by mounting flange simultaneously；Annular muscle
Plate, for increasing the contact area at pressing position and polyimides germanium film layer, forms L-type pressing, to keep the tension to film layer
Power, annular gusset height is adjusted according to size and the stress of film layer, inside annular gusset with antenna house annular gusset outside
Side forms slight interference after reserving thicknesses of layers and coordinates to increase lateral pressure force；The knuckle of ring muscle surrounding is for coupling and antenna
The fillet of corresponding site after the assembling of cover framework, the size of knuckle reserves one on the basis of antenna house framework corresponding site fillet
Fixed gap is to mate the fold that polyimides germanium film turnover herein occurs；Installing hole is for being fixed to antenna house pressing plate flange
Antenna house frame upper surface.
Polyimides germanium film germanium film cuts out appropriately sized to mate antenna house framework, monolateral during cutting reserves about 50mm
Surplus so that during Zhuan Pei strain film layer time apply tightening force.
This utility model is described in detail by 1-4 and detailed description of the invention below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, this antenna house is by antenna house support 101, antenna house pressing plate 102, polyimides germanium film 103
Form with installing screw 104.
As it is shown on figure 3, antenna house support 101 is frame structure of aluminum alloy, including mounting flange 201, annular gusset 202, ring
Muscle surrounding knuckle 203, ring top rib portion knuckle 204, ventilating groove 205, installing hole 206.Mounting flange 201 is used for
Antenna house and the installation of miscellaneous part, polyimides germanium film 103 is pressed onto the upper table of mounting flange by antenna house pressing plate 102 simultaneously
Face；Annular gusset 202 for polyimides germanium film 103 is installed to its top, in ring top rib face be radius be the half of 1mm
Rounded transitional fillet 203, can avoid polyimides germanium film to be torn by the seamed edge on annular gusset at extended state；At annular muscle
Plate surrounding is the knuckle 204 of radius 5mm, is arranged on, for smoothing processing polyimides germanium film 103, the pleat being here formed as
Wrinkle, to avoid tearing at edge；Having four symmetrical sectional dimensions bottom mounting flange is the ventilative of 1mm × 3mm
Groove 205, exits, it is to avoid the inside and outside differential pressure damage to polyimides germanium film layer under vacuum environment, and installing hole is used for antenna
Cover stent 101 is fixing with antenna house pressing plate 102, and antenna house and antenna array is fixing.
As shown in Figure 4, antenna house pressing plate 102 is frame structure of aluminum alloy, including mounting flange 301, annular gusset 302, ring
Muscle surrounding knuckle 303, installing hole 304.Mounting flange 301 is for the compression to polyimides germanium film layer, simultaneously by film
Layer is fixed to the upper surface of antenna house flange 201；Annular gusset 302 is for increasing pressing position and polyimides germanium film layer
Contact area, forms L-type pressing, and to keep tightening force to film layer, annular gusset 302 height is according to the size of film layer and is subject to
Power state is adjusted, inside annular gusset with reserve thicknesses of layers outside antenna house annular gusset after formed slight interference coordinates with increasing
Add lateral pressure force；The knuckle 303 of ring muscle the surrounding fillet of corresponding site, mistake after coupling is assembled with antenna house framework
Crossing radius of corner is 4.5mm, and the fold that polyimides germanium film turnover herein occurs can be mated in the fit-up gap at fillet position；
Installing hole 304 is for being fixed to antenna house frame upper surface by antenna house pressing plate flange.
Polyimides germanium film germanium film cuts out appropriately sized to mate antenna house framework, monolateral during cutting reserves about 50mm
Surplus so that during Zhuan Pei strain film layer time apply tightening force.
It will be appreciated that the assemble flow of antenna house is:
1) confirm plating germanium face and polyimides face by the method for measuring resistance by using universal meter, resistance be megaohm magnitude be plating germanium face, electricity
Resistance for infinitely-great be polyimides face；
2) cut out the polyimides germanium film suitable with antenna array size, monolateral during cutting reserve the remaining of about 50mm
Amount；
3) at antenna house support ring top rib portion 92#3M adhesive tape edge sealing, edge sealing width about 5mm.On the one hand this operation can enter one
Step prevents the burr of edge or thrust to polyimides germanium film damage layer；On the other hand turn over to polyimides germanium film layer
Play certain cushioning effect at folding, reduce local pressure；
4) being uniformly coated with silicone rubber GD414 outside antenna house framework mounting flange upper surface and annular gusset, rubberization thickness is little
In 0.1mm；
5) polyimides germanium film plating germanium is faced outwardly and is installed on antenna house framework, antenna house pressing plate is installed simultaneously, makes germanium film
It is being in the state of being squeezed with antenna house contact therewith position；
6) along surrounding Uniform Tension polyimides germanium film edge, until face is in formation state, but can not be tight；
7) housing screw between antenna house support and antenna house pressing plate is installed；
8) after silicone rubber GD414 solidifies, remove, with knife blade, the film layer that antenna house support surrounding is unnecessary；
9) with the polyester film that thickness is 20 to 50um, plating germanium face is protected.
In sum, antenna house of the present utility model can adjust antenna array to film as Ka frequency range low-loss microwave antenna house
The distance of layer, makes antenna have optimum radio frequency transmission performance, has stronger for complicated or fractal antenna unit or antenna array
Adaptability, it is thus possible to be effectively isolated the Orbital heat flux impact on antenna array temperature, processing technology is good and low cost.
Undeclared in this utility model partly belong to techniques known.
Claims (9)
1. a high band low loss antenna cover, it is characterised in that the one side plating germanium polyimide film using thickness to be 50um
Making polyimides germanium film, it is made up of antenna house support, antenna house pressing plate, described polyimides germanium film and installation screw.
High band low loss antenna cover the most according to claim 1, it is characterised in that described polyimides germanium film
Solar absorptance is not more than 0.45, and hemispherical emissivity is not less than 0.7, surface resistivity 1107-5108 Ω, C-band, Ku, Ka
The lossy microwave of wave band is not more than 0.1dB.
High band low loss antenna cover the most according to claim 1, it is characterised in that described antenna house support is metal
Frame structure and at least include mounting flange, annular gusset, ring muscle surrounding knuckle, ring top rib portion knuckle, ventilative
Groove and installing hole,
Wherein,
Described mounting flange is installation of miscellaneous part on antenna house and its, and described antenna house pressing plate is sub-by described polyamides
Amine germanium film is pressed onto the upper surface of described mounting flange；
The top of described annular gusset is provided with described polyimides germanium film；
Described ring top rib portion knuckle is positioned at the end face of described annular gusset and as semicircular knuckle, thus keeps away
Exempt from described polyimides germanium film to be torn by the seamed edge on described annular gusset at extended state；
Described ring muscle surrounding knuckle is positioned at the surrounding of described annular gusset and as large-sized knuckle, is used for putting down
The described polyimides germanium film of sliding process is arranged on the fold being here formed as, thus avoids tearing at edge；
Described ventilating groove, quantity is four and is symmetrically distributed in the bottom of described mounting flange, for putting under vacuum conditions
Gas, thus avoid the inside and outside differential pressure damage to described polyimides germanium film layer；
Described installing hole, fixing for described antenna house support and described antenna house pressing plate, and described antenna house is with described
Fixing of antenna array.
High band low loss antenna cover the most according to claim 3, it is characterised in that the height of described annular gusset is
It is adjustable, so that the distance electric property between antenna array and described polyimides germanium film is optimum.
High band low loss antenna cover the most according to claim 1, it is characterised in that described antenna house pressing plate is metal
Frame structure, and it includes mounting flange, annular gusset, ring muscle surrounding knuckle and installing hole,
Wherein,
Described mounting flange is for the compression to described polyimides germanium film layer, and its upper surface is fixed with described polyamides
Imines germanium film layer；
Described annular gusset is for increasing the contact area at pressing position and described polyimides germanium film layer, to form L-type pressure
Close, thus keep the tightening force to described polyimides germanium film layer；
Described ring muscle surrounding knuckle is the fillet of corresponding site after coupling is assembled with described antenna house framework；
Described installing hole for being fixed to the upper surface of described antenna house framework by described mounting flange.
High band low loss antenna cover the most according to claim 5, it is characterised in that the height of described annular gusset is
Change with size and the stress of described polyimides germanium film layer.
7. according to the high band low loss antenna cover described in claim 3 or 6, it is characterised in that in described antenna house pressing plate
Described annular gusset inner side and described antenna house support in the outside of described annular gusset all reserve described polyimides plating germanium
The thickness of film layer, thus form slight interference and coordinate to increase lateral pressure force.
High band low loss antenna cover the most according to claim 5, it is characterised in that the size quilt of described knuckle
Elect as: on the basis of described antenna house framework corresponding site fillet, reserve certain interval to mate polyimides described herein plating
The fold that the turnover of germanium film occurs.
High band low loss antenna cover the most according to claim 1, it is characterised in that described polyimides germanium film layer
Cropped go out appropriately sized to mate antenna house framework, and the monolateral surplus reserving 50mm when cutting, in order to assembled
The tightening force applied during tension in journey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620322812.2U CN205564983U (en) | 2016-04-15 | 2016-04-15 | High band low -loss antenna house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620322812.2U CN205564983U (en) | 2016-04-15 | 2016-04-15 | High band low -loss antenna house |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205564983U true CN205564983U (en) | 2016-09-07 |
Family
ID=56809117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620322812.2U Active CN205564983U (en) | 2016-04-15 | 2016-04-15 | High band low -loss antenna house |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481932A (en) * | 2016-09-08 | 2017-03-08 | 上海卫星工程研究所 | Wave transparent type multilayer insulation material structure and preparation method |
| CN107768822A (en) * | 2017-11-22 | 2018-03-06 | 广东通宇通讯股份有限公司 | A kind of antenna sealing structure and antenna |
| CN109648971A (en) * | 2019-01-09 | 2019-04-19 | 上海卫星工程研究所 | A kind of space heat controlled thin film |
| CN111817005A (en) * | 2020-05-26 | 2020-10-23 | 深圳市东创精密技术有限公司 | Base station antenna housing and manufacturing method thereof |
| CN112382851A (en) * | 2020-11-03 | 2021-02-19 | 西安电子工程研究所 | Reliable sealed large-caliber high-rigidity antenna housing rapid opening and closing structure |
| CN113506972A (en) * | 2021-06-08 | 2021-10-15 | 上海宇航系统工程研究所 | Space anti-static film antenna film surface |
-
2016
- 2016-04-15 CN CN201620322812.2U patent/CN205564983U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481932A (en) * | 2016-09-08 | 2017-03-08 | 上海卫星工程研究所 | Wave transparent type multilayer insulation material structure and preparation method |
| CN107768822A (en) * | 2017-11-22 | 2018-03-06 | 广东通宇通讯股份有限公司 | A kind of antenna sealing structure and antenna |
| CN107768822B (en) * | 2017-11-22 | 2024-01-05 | 广东通宇通讯股份有限公司 | Antenna sealing structure and antenna |
| CN109648971A (en) * | 2019-01-09 | 2019-04-19 | 上海卫星工程研究所 | A kind of space heat controlled thin film |
| CN111817005A (en) * | 2020-05-26 | 2020-10-23 | 深圳市东创精密技术有限公司 | Base station antenna housing and manufacturing method thereof |
| CN112382851A (en) * | 2020-11-03 | 2021-02-19 | 西安电子工程研究所 | Reliable sealed large-caliber high-rigidity antenna housing rapid opening and closing structure |
| CN113506972A (en) * | 2021-06-08 | 2021-10-15 | 上海宇航系统工程研究所 | Space anti-static film antenna film surface |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |