CN106848501A - A kind of frequency selects composite material sandwich structure - Google Patents
A kind of frequency selects composite material sandwich structure Download PDFInfo
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- CN106848501A CN106848501A CN201710025172.8A CN201710025172A CN106848501A CN 106848501 A CN106848501 A CN 106848501A CN 201710025172 A CN201710025172 A CN 201710025172A CN 106848501 A CN106848501 A CN 106848501A
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- frequency
- composite material
- sandwich structure
- layer
- copper foil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
Abstract
The present invention provides a kind of frequency selection composite material sandwich structure, the frequency selection composite material sandwich structure includes the first skinning layer, the foam sandwich laminate in first skinning layer is arranged at, the frequency selection unit that is arranged on foam sandwich laminate layer and the second skinning layer being arranged on the frequency selection unit layer；The frequency selection unit layer includes the double-T shaped Copper Foil of polylith of carrier and the periodic arrangement formed on carrier, and every block of double-T shaped Copper Foil includes horizontal edge and the two vertical edges composition being parallel to each other.Sandwich of the present invention is while high rigidity is ensured, covering and core are using the excellent material of dielectric properties, by the way that to frequency selection unit layer resonance structure size, the parameter designing of shape, band logical is realized in realization in 1.0~2.0GHZ, 8.0~18GHZ wavelength bands, and wave transmission rate is more than 90%.
Description
Technical field
The present invention relates to electromagnetic technology field, more particularly to a kind of frequency selection composite material sandwich structure.
Background technology
Frequency-selective surfaces are a kind of two-dimensionally periodic structures, for incident electromagnetic wave there is certain frequency to select special
Property.The application of frequency-selective surfaces is quite varied, especially as the development of artificial electromagnetic media technology, by frequency-selective surfaces with
Electromagnetic wave transparent material is combined, and can be more convenient to realize the transmission for CF wave band, the need for meeting difference.But with when
The development of generation technique, compound electromagnetic wave transparent material requires that wave transparent frequency band is as wide as possible in addition to needing to meet lightweight high-modulus, also, and
With interior high transmittance, Out-of-band rejection, therefore study a kind of compound with the frequency-selective surfaces passed through in broadband, special frequency channel
Structure is significant.
The content of the invention
It is an object of the invention to provide a kind of simple structure, it is easily achieved and frequency that insertion loss is low selects composite
Sandwich.
The purpose of the present invention is achieved through the following technical solutions：
A kind of frequency selection composite material sandwich structure, the frequency selection composite material sandwich structure includes the first skinning layer,
Be arranged at the foam sandwich laminate in first skinning layer, be arranged on the foam sandwich laminate frequency selection unit layer and
It is arranged at the second skinning layer on the frequency selection unit layer；The frequency selection unit layer includes carrier and the shape on carrier
Into periodic arrangement the double-T shaped Copper Foil of polylith, every block of double-T shaped Copper Foil includes horizontal edge and the two vertical edges composition being parallel to each other.
In such scheme, the thickness of Copper Foil is 6~20 μm.
In such scheme, the length of horizontal edge is 20mm, and the width of horizontal edge is 1mm, two copper of horizontal direction arranged adjacent
The distance between horizontal edge of paper tinsel is 1mm.
In such scheme, every length of vertical edge is 19mm, and the distance between two vertical edges are 6mm in each Copper Foil, often
The distance between the bottom of bar vertical edge and the horizontal edge of Copper Foil of vertical direction arranged adjacent are 1mm.
In such scheme, first skinning layer and the second skinning layer are that quartz glass fibre cloth enhancing cyanate ester resin is answered
Condensation material, 0.1~0.4mm of thickness.
In such scheme, the dielectric constant of the quartz glass fibre cloth enhancing cyanate ester resin composite material is less than 3.6,
Dielectric loss is less than 0.006.
In such scheme, the material of the foam sandwich laminate is polymethacrylimide foam, and thickness is 3~12mm,
Density is 40~100kg/m3。
In such scheme, polymethacrylimide foam material dielectric constant is less than 1.13, and loss angle tangent is less than
0.004。
In such scheme, the frequency selects composite material sandwich structure in 1.0~2.2GHZ, 7.5~18GHZ wave band models
Enclose it is interior realize band logical, wave transmission rate is more than 90%.
Beneficial effects of the present invention are：While high rigidity is ensured, covering and core are using Jie for sandwich of the present invention
The material of excellent electrical property, by frequency selection unit layer resonance structure size, the parameter designing of shape, realizing 1.0~
Band logical is realized in 2.2GHZ, 8~18GHZ wavelength bands, wave transmission rate is more than more than 90%.
Brief description of the drawings
Fig. 1 is the schematic diagram that frequency provided in an embodiment of the present invention selects composite material sandwich structure.
Fig. 2 is that the frequency selection unit layer in Fig. 1 is four structural representations of cycle " double-T shaped ".
Fig. 3 is material wave transparent performance map prepared by embodiment 1.
Fig. 4 is material wave transparent performance map prepared by embodiment 2.
Fig. 5 is material wave transparent performance map prepared by embodiment 3.
Specific embodiment
It is further below in conjunction with specific embodiment to make present disclosure, technical scheme and advantage become more apparent
The present invention is illustrated, these embodiments are merely to illustrate the present invention, and the present invention is not limited only to following examples.
Embodiment 1
As shown in figure 1, it is a kind of frequency selection composite material sandwich structure provided in an embodiment of the present invention, frequency selection is multiple
Condensation material sandwich includes the first skinning layer 1, the foam sandwich laminate 2 being arranged in the first skinning layer 1, is arranged at foam core
Frequency selection unit layer 3 and the second skinning layer 4 being arranged on frequency selection unit layer 3 on layer 2.
First skinning layer 1 and the second skinning layer 4 are that quartz glass fibre cloth strengthens cyanate ester resin composite material, thickness
0.1~0.4mm.In the present embodiment, the first skinning layer 1 and the thickness of the second skinning layer 4 are 0.2mm.First skinning layer 1 and second
The dielectric constant of skinning layer 4 is 3.5, and dielectric loss is 0.005.
The material of foam sandwich laminate 2 is Polymethacrylimide（PMI）.The thickness of foam sandwich laminate 2 is 3~12mm.
The dielectric constant of foam sandwich laminate 2 is no more than 1.13, and loss angle tangent is no more than 0.004.In the present embodiment, steeped from PMI
Foam, its dielectric constant is 1.10, and dielectric loss is 0.0038, and thickness is 8mm.
Frequency selection unit layer 3 includes the double-T shaped Copper Foil of polylith of carrier and the periodic arrangement formed on carrier.Copper Foil
Thickness be 6~20 μm.In the present embodiment, thickness is 12 μm.As shown in Fig. 2 the present embodiment is four " double T in cycle
Type ".Every block of double-T shaped Copper Foil includes horizontal edge and the two vertical edges composition being parallel to each other.The length of horizontal edge is 20mm, the width of horizontal edge
It is 1mm to spend, and the distance between two horizontal edges of Copper Foil of horizontal direction arranged adjacent are 1mm.Every length of vertical edge is 19mm,
The distance between two vertical edges are 6mm in each Copper Foil, the horizontal stroke of every bottom of vertical edge and the Copper Foil of vertical direction arranged adjacent
The distance between side is 1mm.
The present embodiment also provides the preparation method that the frequency selects composite material sandwich structure, specially：First by first
The quartz glass fibre cloth enhancing cyanate ester resin prepreg and foam sandwich laminate 2 of skinning layer 1 bond together, then by frequency
Select unit layer 3 is bonded together by epoxy resin with foam sandwich laminate 2, finally by epoxy resin by the second skinning layer 4
Quartz glass fibre cloth enhancing cyanate ester resin prepreg and frequency selection unit layer 3 bond, obtain frequency selection composite wood
Feed collet Rotating fields.
The wave transparent performance of frequency selection composite material sandwich structure is shown in Fig. 3.The resonant frequency of this structural material is
2.76GHZ, 5.75GHZ, can effectively control the frequency bandwidth and wave transmission rate of incident electromagnetic wave, realize 1.0~
Band logical is realized in 2.17GHZ, 7.67~18GHZ wavelength bands, wave transmission rate is more than more than 90%.
Embodiment 2
The present embodiment is roughly the same with embodiment 1, and difference is that the first skinning layer 1 and the thickness of the second skinning layer 4 are about
0.1mm.Its wave transparent performance is shown in Fig. 4.The resonant frequency of this structural material be 2.88GHZ, 5.89GHZ, can effectively control into
The frequency bandwidth and wave transmission rate of radio magnetic wave, realization realize band logical in 1.0~2.26GHZ and 7.76~18GHZ wavelength bands,
Wave transmission rate reaches more than 90%.
Embodiment 3
The present embodiment is roughly the same with embodiment 1, and difference is that the thickness of foam sandwich laminate 2 is 4mm.Its wave transparent performance
See Fig. 5.The resonant frequency of this structural material is 2.8GHZ, 5.8GHZ, can effectively control the frequency bandwidth of incident electromagnetic wave
And wave transmission rate, to realize realizing band logical in 1.0~2.2GHZ and 7.8~18GHZ wavelength bands, wave transmission rate reaches more than 90%.
Claims (9)
1. a kind of frequency selects composite material sandwich structure, it is characterised in that the frequency selects composite material sandwich structure bag
The first skinning layer is included, the foam sandwich laminate in first skinning layer is arranged at, the frequency on the foam sandwich laminate is arranged at
Select unit layer and the second skinning layer being arranged on the frequency selection unit layer；The frequency selection unit layer includes carrying
The double-T shaped Copper Foil of polylith of body and the periodic arrangement formed on carrier, every block of double-T shaped Copper Foil includes horizontal edge and is parallel to each other
Two vertical edge compositions.
2. frequency as claimed in claim 1 selects composite material sandwich structure, it is characterised in that the thickness of Copper Foil is 6~20 μ
m。
3. frequency as claimed in claim 1 selects composite material sandwich structure, it is characterised in that the length of horizontal edge is 20mm,
The width of horizontal edge is 1mm, and the distance between two horizontal edges of Copper Foil of horizontal direction arranged adjacent are 1mm.
4. frequency as claimed in claim 1 selection composite material sandwich structure, it is characterised in that the length of every vertical edge is
19mm, the distance between two vertical edges are 6mm in each Copper Foil, the Copper Foil of every bottom of vertical edge and vertical direction arranged adjacent
The distance between horizontal edge be 1mm.
5. frequency as claimed in claim 1 selection composite material sandwich structure, it is characterised in that first skinning layer and the
Two skinning layer are that quartz glass fibre cloth strengthens cyanate ester resin composite material, 0.1~0.4mm of thickness.
6. frequency as claimed in claim 5 selects composite material sandwich structure, it is characterised in that the quartz glass fibre cloth
The dielectric constant for strengthening cyanate ester resin composite material is less than 3.6, and dielectric loss is less than 0.006.
7. frequency as claimed in claim 1 selects composite material sandwich structure, it is characterised in that the material of the foam sandwich laminate
Expect to be polymethacrylimide foam, thickness is 3~12mm, density is 40~100kg/m3。
8. frequency as claimed in claim 7 selects composite material sandwich structure, it is characterised in that Polymethacrylimide steeps
Foam material dielectric constant is less than 1.13, and loss angle tangent is less than 0.004.
9. frequency as claimed in claim 1 selects composite material sandwich structure, it is characterised in that the frequency selects composite wood
Feed collet Rotating fields realize band logical in 1.0~2.2GHZ, 8~18GHZ wavelength bands, and wave transmission rate is more than 90%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710025172.8A CN106848501B (en) | 2017-01-13 | 2017-01-13 | A kind of frequency selection composite material sandwich structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710025172.8A CN106848501B (en) | 2017-01-13 | 2017-01-13 | A kind of frequency selection composite material sandwich structure |
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| CN106848501A true CN106848501A (en) | 2017-06-13 |
| CN106848501B CN106848501B (en) | 2019-10-01 |
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| CN201710025172.8A Active CN106848501B (en) | 2017-01-13 | 2017-01-13 | A kind of frequency selection composite material sandwich structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216930A (en) * | 2017-07-03 | 2019-01-15 | 上海东峻信息科技有限公司 | The high wave transparent frequency-selective surfaces construction design method of ultra-wide passband, wide-angle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4121245A1 (en) * | 1991-06-27 | 1993-01-14 | Messerschmitt Boelkow Blohm | FREQUENCY SELECTIVE SURFACE STRUCTURE |
| CN103000995A (en) * | 2012-12-12 | 2013-03-27 | 洛阳双瑞橡塑科技有限公司 | Combined antenna housing |
| CN203589218U (en) * | 2013-11-26 | 2014-05-07 | 深圳光启创新技术有限公司 | Antenna |
| CN104763100A (en) * | 2015-03-06 | 2015-07-08 | 中国人民解放军国防科学技术大学 | A shelter large plate having a radar stealth function and a bulletproof function and a preparing method thereof |
| CN105789910A (en) * | 2016-04-19 | 2016-07-20 | 成都德杉科技有限公司 | Circular-polarized frequency selection surface structure |
| CN106275377A (en) * | 2016-08-30 | 2017-01-04 | 北京奇正数元科技股份有限公司 | The stressed-skin construction of a kind of small-sized unmanned plane and forming method thereof |
-
2017
- 2017-01-13 CN CN201710025172.8A patent/CN106848501B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4121245A1 (en) * | 1991-06-27 | 1993-01-14 | Messerschmitt Boelkow Blohm | FREQUENCY SELECTIVE SURFACE STRUCTURE |
| CN103000995A (en) * | 2012-12-12 | 2013-03-27 | 洛阳双瑞橡塑科技有限公司 | Combined antenna housing |
| CN203589218U (en) * | 2013-11-26 | 2014-05-07 | 深圳光启创新技术有限公司 | Antenna |
| CN104763100A (en) * | 2015-03-06 | 2015-07-08 | 中国人民解放军国防科学技术大学 | A shelter large plate having a radar stealth function and a bulletproof function and a preparing method thereof |
| CN105789910A (en) * | 2016-04-19 | 2016-07-20 | 成都德杉科技有限公司 | Circular-polarized frequency selection surface structure |
| CN106275377A (en) * | 2016-08-30 | 2017-01-04 | 北京奇正数元科技股份有限公司 | The stressed-skin construction of a kind of small-sized unmanned plane and forming method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216930A (en) * | 2017-07-03 | 2019-01-15 | 上海东峻信息科技有限公司 | The high wave transparent frequency-selective surfaces construction design method of ultra-wide passband, wide-angle |
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| CN106848501B (en) | 2019-10-01 |
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