CN202651360U - High precision antenna reflection plane, and satellite receiving antenna with same - Google Patents
High precision antenna reflection plane, and satellite receiving antenna with same Download PDFInfo
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- CN202651360U CN202651360U CN 201220319761 CN201220319761U CN202651360U CN 202651360 U CN202651360 U CN 202651360U CN 201220319761 CN201220319761 CN 201220319761 CN 201220319761 U CN201220319761 U CN 201220319761U CN 202651360 U CN202651360 U CN 202651360U
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- reflecting surface
- reflection plane
- antenna
- internal layer
- precision
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Abstract
The utility model discloses a high precision antenna reflection plane, comprising a reflection plane inner layer and a reflection plane outer layer, wherein the reflection plane inner layer is connected with the reflection outer layer together through a binder, the reflection plane outer layer is provided with spaced concave segment portions, the entire shape of the reflection plane outer layer is matched with the reflection plane inner layer, and the concave segment portions of the reflection plane outer layer are connected with the reflection plane inner layer through the binder. The high precision antenna reflection plane employs a layered structure combined by the reflection plane inner layer and the reflection plane outer layer, thereby effectively increasing the arc surface precision of the reflection plane; simultaneously, the structure design of the reflection plane outer layer effectively enhances the supporting rigidity of the reflection plane outer layer to the reflection plane inner layer, thereby ensuring the precision of the reflection plane inner layer and the strength of the entire reflection plane, and enhancing the environment adaptability of products; and it is unnecessary to add components for enhancing rigidity on the reflection plane outer layer, such that the reflection plane is simple in structure and simpler and faster in molding technology, thereby effectively resolving the molding manufacture problem of the prior reflection plane. The utility model also provides a satellite receiving antenna.
Description
Technical field
The utility model relates to a kind of Satellite Television Ground Receiving Antenna equipment, a kind of high-precision antenna reflector of special design and be provided with the satellite earth antenna of this reflecting surface.
Background technology
At present, for high-precision antenna reflector, the height of its gain is main performance index.
Gain
Formula 1
G: gain
λ: receive the wavelength of signal, the higher wavelength of frequency is shorter
A
0: the effective area of Antenna aperture
e
A: antenna efficiency
Antenna efficiency e wherein
A=e
ie
be
xe
Phe
se
δFormula 2
e
i: the amplitude illumination efficiency
e
b: aperture blockage efficient
e
x: cross polarization efficient
e
Ph: phase error efficient
e
s: leak the efficient of overflowing
e
δ: reflecting surface surface error efficient
Wherein, reflecting surface surface error efficient is to reduce surface spring back to put forward high-precision key
Reflecting surface surface error efficient e
δ=
Formula 3
Calculate e with decibel
δ(dB)=-685.8(σ/λ)
2 Formula 4
Wherein σ is the root-mean-square value of random surface error after aperture field distribution weighting
According to formula 4 as can be known, affect in the factor of antenna reflective face gain, frequency is higher, and wavelength is shorter, and then the loss of gain is also just larger; Wrap-around error is larger, and gain loss is also larger; Product is worked under high frequency Ku frequency range and Ka frequency range condition and can be caused very large impact to the main electrical performance indexes of antenna because of the wrap-around error precision.Therefore, how reducing the wrap-around error of antenna reflective face, is the key of Effective Raise antenna gain.
Present commercially available satellite television receiving equipment, its high-precision antenna reflector is mainly the sheet metal of single layer structure, on the reflecting surface manufacture craft, although punch forming mode more common in the employing industrial design can be fast, make easily reflecting surface, but nearly all metal material all exists the problem of resilience and the intensity difference of product after punch forming, and the resilience meeting of reflecting surface causes the antenna reflective face gain to descend, noise factor rises, be unfavorable for the problems such as the reception of signal and transmission, if the resilience deformation quantity is excessive, then can not use as other dual-mode antenna of high accuracy level.Therefore, because existing high accuracy reflecting surface single layer structure does not adopt stamping forming mode in existing reflecting surface moulding process, and employing aluminium sheet and angle steel is used in conjunction with, glass-reinforced plastic material, carbon fibre material, steel plate materials be with spinning process etc.But these methods exist all to the processing of product parts that material cost is high, the cycle of manufacturing is long, production cost is high, are unfavorable for the defectives such as production in enormous quantities; Wherein steel plate materials employing spinning process also is subjected to the limitation of shape of product, is only applicable to the just feedback reflecting surface of symmetrical gyroaxis.
In order to address the above problem, to be called " a kind of method for manufacturing high-precision antenna reflector " in Chinese patent CN200510012407.7 name and to disclose and a kind ofly adopt that moulding manufactures the high accuracy reflecting surface on the support bone curved surface that negative pressure of vacuum technique is adsorbed onto the skin curved surface support frame panel.This reflecting surface consists of layer structure by skin curved panel, support rib curved slab and honeycomb core material, in the structure of this reflecting surface because skin curved panel and support rib curved slab adopt identical shaped cambered plate structure, to such an extent as to bulk strength is not high after the reflecting surface moulding, also need to be after the support rib curved slab arranges Z-type material muscle beam to strengthen the reflecting surface moulding integral rigidity, therefore more complicated in the moulding of reflecting surface, still exist and manufacture that the cycle is long, production cost is high, be unfavorable for the defectives such as production in enormous quantities.
The utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of satellite earth antenna of making the high-precision antenna reflector simple, that the cambered surface precision is high, bulk strength is high and being provided with this reflecting surface.
The technical solution of the utility model is achieved in that
A kind of high-precision antenna reflector, comprise that reflecting surface internal layer and reflecting surface are outer, described reflecting surface internal layer links together by binding agent and reflecting surface skin, it is characterized in that: the compartment of terrain forms recessed section part on the described reflecting surface skin, the outer global shape of described reflecting surface and reflecting surface internal layer coupling, the outer field recessed section part of described reflecting surface is connected with the reflecting surface internal layer by binding agent.
High-precision antenna reflector described in the utility model, recessed section part of moulding is complementary with reflecting surface internal layer counterpart shape respectively on its described reflecting surface skin.
High-precision antenna reflector described in the utility model, it is provided with the reflecting surface intermediate layer that at least one deck and reflecting surface internal layer shape are complementary between described reflecting surface internal layer and reflecting surface skin, be connected with reflecting surface with the reflecting surface internal layer respectively by binding agent and be connected in described reflecting surface intermediate layer, described adjacent reflecting surface connects by binding agent between the intermediate layer.
High-precision antenna reflector described in the utility model, recessed section part of moulding connects by the reflecting surface intermediate layer that binding agent is adjacent on its described reflecting surface skin.
High-precision antenna reflector described in the utility model, its described reflecting surface internal layer is the metallic conduction material, described reflecting surface skin is metal material.
High-precision antenna reflector described in the utility model, its described reflecting surface internal layer is the metallic conduction material, having one deck reflecting surface intermediate layer between described reflecting surface internal layer and reflecting surface skin at least is metal material, and described reflecting surface skin is metal material or nonmetallic materials.
High-precision antenna reflector described in the utility model, it is provided with non-metallic fillers between above-mentioned each layer, and described non-metallic fillers is connected with its respective layer respectively by binding agent.
High-precision antenna reflector described in the utility model, the reflecting surface that its said structure consists of are spliced by two parts at least and consist of an overall structure.
A kind of satellite earth antenna that is provided with above-mentioned reflecting surface, its described reflecting surface is fixed on the antenna back bracket, after being connected with the Level tune support by bolt, described antenna back bracket realizes the luffing angle adjusting of antenna, described Level tune support is contained in antenna on the supporting mechanism by its clasping structure, realizes that by rotating the Level tune support orientation angles of antenna is regulated; Described reflecting surface is connected with the feed bar by the antenna back bracket or directly is connected with the feed bar by bolt, described feed bar is connected with the feed Connection Block, described feed Connection Block is locked on the focus of reflecting surface by the transceiver duplexer of bolt with the feed of receiving signals from satellites or satellite signal receiving, emission usefulness, and satellite-signal carries out the transmission of signal by the feeder line that is connected to feed one end.
Satellite earth antenna described in the utility model, its described supporting mechanism comprises column, base and pull bar, and described base is connected bolt and is connected with column with pull bar, and described base is connected expansion bolt or anchor bolt and is connected with the installation basis with pull bar.
The utility model adopts the layer structure of reflecting surface internal layer and the outer combination of reflecting surface, utilize the outer and reflecting surface internal layer of reflecting surface produced simultaneously stretching and compression stress in forming process to interact to reduce the resilience problem of reflecting surface internal layer, the cambered surface precision of Effective Raise reflecting surface, simultaneously, the outer field structural design of reflecting surface can effectively be strengthened the reflecting surface skin to the support stiffness of reflecting surface internal layer, guarantee the precision of reflecting surface internal layer and the intensity of overall reflective face, strengthen the environmental suitability of product, need not increases the extra parts of strengthening stiffness that rise at the reflecting surface skin again, thereby make the simple in structure of reflecting surface, moulding process is easier, fast, efficiently solving existing reflecting surface, to make the cycle of manufacturing long, production cost is high, the problem that is unfavorable for producing in enormous quantities etc.
Description of drawings
Fig. 1 is the front view of high-precision antenna reflector among the utility model embodiment 1.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is Fig. 1 midship section figure.
Fig. 4 is I section enlarged drawing among Fig. 3.
Fig. 5 is the partial enlarged drawing of high-precision antenna reflector among the utility model embodiment 2.
Fig. 6 is the main pseudosection of high-precision antenna reflector among the utility model embodiment 3.
Fig. 7 is the vertical view of Fig. 6.
Fig. 8 is the upward view of Fig. 6.
Fig. 9 is the left view of Fig. 6.
Figure 10 is the right view of Fig. 6.
Figure 11 is the structural representation that is provided with the satellite earth antenna of high-precision antenna reflector.
Figure 12 is the front view of Figure 11.
Figure 13 is the right view of Figure 11.
Figure 14 is the vertical view of Figure 11.
Mark among the figure: 1 is the reflecting surface internal layer, and 2 is that reflecting surface is outer, and 3 is recessed section part of moulding on the reflecting surface skin, 4 is non-metallic fillers, and 5 is feed, and 6 is the feed Connection Block, 7 is the feed bar, and 8 is feeder line, and 9 is reflecting surface, 10 is the antenna back bracket, and 11 is the Level tune support, and 12 is column, 13 is pull bar, 14 is base, and 15 for installing the basis, and 16 is the reflecting surface intermediate layer.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Embodiment 1: shown in Fig. 1-4, a kind of high-precision antenna reflector, comprise reflecting surface internal layer 1 and reflecting surface skin 2, described reflecting surface internal layer 1 links together by binding agent and reflecting surface skin 2, the compartment of terrain forms recessed section part 3 on the described reflecting surface skin 2, outer 2 global shapes of described reflecting surface and reflecting surface internal layer 1 coupling, recessed section part 3 of moulding is complementary with reflecting surface internal layer 1 counterpart shape respectively on the described reflecting surface skin 2, recessed section part 3 of described reflecting surface skin 2 is connected with reflecting surface internal layer 1 by binding agent, and the not recessed section part of reflecting surface skin forms certain interval with the reflecting surface internal layer.The outer field structural design of reflecting surface can effectively be strengthened the reflecting surface skin to the support stiffness of reflecting surface internal layer, guarantee the precision of reflecting surface internal layer and the intensity of overall reflective face, strengthen the environmental suitability of product, and the reflecting surface skin can be by one time punching molded, manufacture craft is simple, can effectively overcome the problem that existing other moulding processs exist.
Wherein, described reflecting surface internal layer is used for electromagnetic reflection, and surface requirements is smooth smooth, and resilience is little, conforms to theoretical curved surface, and the σ value error that is mainly manifested in curved surface root mean square mistake RMS is little; Described reflecting surface skin can adopt the slab construction identical with reflecting surface internal layer cambered surface as required, also can be on the structure of flat board moulding other structures that can play similar reinforcement effect improve the intensity of reflecting surface; It is high that described non-metallic fillers with binding agent has adhesion strength, and high low temperature is adaptable, and the characteristics that the adhesive solidification time is short bond together the adjacent two layers structure.
Between above-mentioned each layer, be provided with non-metallic fillers, described non-metallic fillers is connected with respective layer respectively by binding agent, non-metallic fillers with binding agent firmly is bonded together reflecting surface internal layer and reflecting surface skin, allow reflecting surface internal layer and reflecting surface skin bring into play corresponding function, when having improved the product shock resistance, reduced the weight of product.
Wherein, described reflecting surface internal layer is the metallic conduction material, and in order to guarantee the reflecting surface bulk strength, the reflecting surface skin also adopts metal material.
Reflecting surface internal layer of the present utility model and reflecting surface skin all can by one time punching molded, then consist of reflecting surface by the post forming mold pressing.The anti-rebound method that the utility model adopts is to be superimposed by the multiple layer metal material, realize the purpose that resilience is little, precision is high according to the precision of secondary press-moulding die cambered surface and the metal material suppressed in the balance that the difference in functionality (tension stress and compression in the material restrict mutually) of diverse location layer performance reaches inner tension and compression stress, improve the compressing Product Precision of reflecting surface.
Shown in Figure 11-14, structural representation for the satellite earth antenna that is provided with above-mentioned high-precision antenna reflector, described reflecting surface 9 is fixed on the antenna back bracket 10, after being connected with Level tune support 11 by bolt, described antenna back bracket 10 realizes the luffing angle adjusting of antenna, described Level tune support 11 is contained in antenna on the supporting mechanism by its clasping structure, realizes that by rotating Level tune support 11 orientation angles of antenna is regulated; Described reflecting surface 9 is connected with feed bar 7 by antenna back bracket 10 or directly is connected with feed bar 7 by bolt, described feed bar 7 is connected with feed Connection Block 6, described feed Connection Block 6 is locked at the feed 5 of receiving signals from satellites or the transceiver duplexer of satellite signal receiving or emission usefulness on the focus of reflecting surface by bolt, and satellite-signal carries out the transmission of signal by the feeder line 8 that is connected to feed 5 one ends.Described supporting mechanism comprises column 12, base 14 and pull bar 13, and described base 14 is connected with pull bar and is connected with column 12 by bolt, and described base 14 is connected with pull bar and is connected with installation basic 15 by expansion bolt or anchor bolt.
High-precision antenna reflector in use purpose is to have the principle that directional light and high frequency electromagnetic wave signal can be converged at focus by the reflection of curved surface by the curved surface that parabola rotation produces, faint satellite electromagnetic wave signal can be converged to the focus place, by feed, the feeder line that is clamped in focus signal be passed to receiving system.So high-precision antenna reflector purpose of the present utility model is the signal of telecommunication is converged in a bit, if resilience is large, precision is low, then the signal of telecommunication can not be converged in the focus place and produce scattering, the gain of antenna is descended, noise factor rises, and is unfavorable for reception and the transmission of signal.
Embodiment 2: as shown in Figure 5, between described reflecting surface internal layer 1 and reflecting surface skin 2, be provided with the reflecting surface intermediate layer 16 that at least one deck and reflecting surface internal layer 1 shape are complementary, be connected with reflecting surface with reflecting surface internal layer 1 respectively by binding agent and 2 be connected in described reflecting surface intermediate layer 16, connect by binding agent between the described adjacent reflecting surface intermediate layer, recessed section part 3 of moulding connects by the reflecting surface intermediate layer that binding agent is adjacent on the described reflecting surface skin 2.When having adopted at least one deck reflecting surface intermediate layer, if have in the reflecting surface intermediate layer when one deck is metal material at least, described reflecting surface skin is metal material or nonmetallic materials, such as in order to adapt to environment for use, and the outer insulation material with heat insulation function that adopts of reflecting surface.Other structures are identical with embodiment 1.
Embodiment 3: shown in Fig. 6-10, the reflecting surface that said structure consists of is comprised of two parts at least, and each several part adopts bolt and fastener to be assemblied into an overall structure, and other structures are identical with embodiment 1.The present embodiment is mainly used in the larger reflecting surface of caliber size.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. high-precision antenna reflector, comprise reflecting surface internal layer (1) and reflecting surface outer (2), described reflecting surface internal layer (1) links together by binding agent and reflecting surface outer (2), it is characterized in that: the upper compartment of terrain of described reflecting surface outer (2) forms recessed section part (3), outer (2) global shape of described reflecting surface and reflecting surface internal layer (1) coupling, the recessed section part (3) of described reflecting surface outer (2) is connected with reflecting surface internal layer (1) by binding agent.
2. high-precision antenna reflector according to claim 1 is characterized in that: the recessed section part (3) of the upper moulding of described reflecting surface outer (2) is complementary with reflecting surface internal layer (1) counterpart shape respectively.
3. high-precision antenna reflector according to claim 2, it is characterized in that: between described reflecting surface internal layer (1) and reflecting surface outer (2), be provided with the reflecting surface intermediate layer (16) that at least one deck and reflecting surface internal layer (1) shape are complementary, described reflecting surface intermediate layer (16) by binding agent respectively with reflecting surface internal layer (1) be connected with reflecting surface (2) be connected, described adjacent reflecting surface connects by binding agent between the intermediate layer.
4. high-precision antenna reflector according to claim 3 is characterized in that: the reflecting surface intermediate layer connection that the recessed section part (3) of the upper moulding of described reflecting surface outer (2) is adjacent by binding agent.
5. high-precision antenna reflector according to claim 2, it is characterized in that: described reflecting surface internal layer (1) is the metallic conduction material, described reflecting surface outer (2) is metal material.
6. high-precision antenna reflector according to claim 4, it is characterized in that: described reflecting surface internal layer (1) is the metallic conduction material, have at least one deck reflecting surface intermediate layer (16) to be metal material between described reflecting surface internal layer (1) and reflecting surface outer (2), described reflecting surface outer (2) is metal material or nonmetallic materials.
7. the described high-precision antenna reflector of any one in 6 according to claim 1, it is characterized in that: be provided with non-metallic fillers (4) between above-mentioned each layer, described non-metallic fillers (4) is connected with its respective layer respectively by binding agent.
8. high-precision antenna reflector according to claim 7 is characterized in that: the reflecting surface that said structure consists of is spliced by two parts at least and consists of an overall structure.
9. satellite earth antenna that is provided with above-mentioned reflecting surface, it is characterized in that: described reflecting surface (9) is fixed on the antenna back bracket (10), after being connected with Level tune support (11) by bolt, described antenna back bracket (10) realizes the luffing angle adjusting of antenna, described Level tune support (11) is contained in antenna on the supporting mechanism by its clasping structure, realizes that by rotating Level tune support (11) orientation angles of antenna is regulated; Described reflecting surface (9) is connected with feed bar (7) by antenna back bracket (10) or directly is connected with feed bar (7) by bolt, described feed bar (7) is connected with feed Connection Block (6), described feed Connection Block (6) is locked on the focus of reflecting surface by the transceiver duplexer of bolt with the feed (5) of receiving signals from satellites or satellite signal receiving, emission usefulness, and satellite-signal carries out the transmission of signal by the feeder line (8) that is connected to feed (5) one ends.
10. satellite earth antenna according to claim 9, it is characterized in that: described supporting mechanism comprises column (12), base (14) and pull bar (13), described base (14) is connected 13 with pull bar) be connected with column (12) by bolt, described base (14) is connected 13 with pull bar) be connected with installation basis (15) by expansion bolt or anchor bolt.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319761 CN202651360U (en) | 2012-07-04 | 2012-07-04 | High precision antenna reflection plane, and satellite receiving antenna with same |
| PCT/CN2012/084882 WO2014005390A1 (en) | 2012-07-04 | 2012-11-20 | High-accuracy antenna reflecting surface, moulding process thereof and satellite receiving antenna provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319761 CN202651360U (en) | 2012-07-04 | 2012-07-04 | High precision antenna reflection plane, and satellite receiving antenna with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651360U true CN202651360U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319761 Expired - Fee Related CN202651360U (en) | 2012-07-04 | 2012-07-04 | High precision antenna reflection plane, and satellite receiving antenna with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202651360U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014005390A1 (en) * | 2012-07-04 | 2014-01-09 | 四川省视频电子有限责任公司 | High-accuracy antenna reflecting surface, moulding process thereof and satellite receiving antenna provided with same |
| CN106218133A (en) * | 2016-07-15 | 2016-12-14 | 佛山市波谱达通信科技有限公司 | A kind of electromagnetic boundary composite plate and application thereof and spotlight antenna |
| CN112397904A (en) * | 2020-10-23 | 2021-02-23 | 广东盛路通信科技股份有限公司 | Novel variable microwave antenna plane of reflection structure of high accuracy curved surface |
-
2012
- 2012-07-04 CN CN 201220319761 patent/CN202651360U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014005390A1 (en) * | 2012-07-04 | 2014-01-09 | 四川省视频电子有限责任公司 | High-accuracy antenna reflecting surface, moulding process thereof and satellite receiving antenna provided with same |
| CN106218133A (en) * | 2016-07-15 | 2016-12-14 | 佛山市波谱达通信科技有限公司 | A kind of electromagnetic boundary composite plate and application thereof and spotlight antenna |
| CN112397904A (en) * | 2020-10-23 | 2021-02-23 | 广东盛路通信科技股份有限公司 | Novel variable microwave antenna plane of reflection structure of high accuracy curved surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180704 |