CN201838689U - Circular polarizer with three layers of fold line grids - Google Patents
Circular polarizer with three layers of fold line grids Download PDFInfo
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- CN201838689U CN201838689U CN2010205197672U CN201020519767U CN201838689U CN 201838689 U CN201838689 U CN 201838689U CN 2010205197672 U CN2010205197672 U CN 2010205197672U CN 201020519767 U CN201020519767 U CN 201020519767U CN 201838689 U CN201838689 U CN 201838689U
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Abstract
The utility model discloses a circular polarizer with three layers of fold line grids, belonging to the field of broadband cover type circular polarizer. The circular polarizer with three layers of fold line grids comprises a first fold line grid layer, a second fold line grid layer, a third fold line grid layer, a first honeycomb-shaped supporting layer and a second honeycomb-shaped supporting layer, wherein the first honeycomb-shaped supporting layer is adhered between the first fold line grid layer and the second fold line grid layer, the second honeycomb-shaped supporting layer is adhered between the second fold line grid layer and the third fold line grid layer, and the structures of the first fold line grid layer and the third fold line grid layer are the same. The circular polarizer not only has broadband characteristics, but also has the advantages of being small in volume, low in production cost and simple in manufacture and machining.
Description
Technical field
The utility model relates to a kind of broadband bell-type circular polarizer, especially a kind of three layers of broken line grid circular polarizer.
Background technology
Circular polarizer is with a wide range of applications in the electronic countermeasures field, if be placed on the radiation actinal surface of linear polarized antenna, can convert line polarization wave to circularly polarised wave.Bell-type circular polarizer commonly used at present is in the majority with printed board formation more than four layers, because its printed board number of plies is more, correspondingly the cost that is spent in production in enormous quantities is also than higher.Therefore, hope can be designed a kind of circular polarizer and can also realize identical functions on the basis of the formation number of plies that reduces printed board.
The bell-type circular polarizer is from can be divided into three major types in form: folding wire grid type, screen type and grizzly bar grid type, and their employed frequency ranges are had nothing in common with each other, and the screen type relatively is suitable for millimere-wave band, and the grizzly bar grid type is more suitable in L-band.In existing circular polarizer, there have been three layers of grizzly bar grid type circular polarizer, but it is because higher to the technological requirement of grizzly bar grid type circular polarizer when high band ripple circular polarization, based on the consideration of production cost, be used for the circular polarization application of high band ripple at present than this kind of major general grizzly bar grid type circular polarizer.
The utility model content
Goal of the invention of the present utility model is: at the problem of above-mentioned existence, provide three layers of broken line grid circular polarizer that a kind of volume is little, manufacturing cost is lower.
The technical solution adopted in the utility model is as follows: these three layers of broken line grid circular polarizers comprise three layers of folding wire-grid layer and two-layer cellular supporting layer, wherein three layers of folding wire-grid layer are the first folding wire-grid layer, second folding wire-grid layer and the tri linear grid layer, two-layer cellular supporting layer is the first cellular supporting layer and the second cellular supporting layer, the first cellular supporting layer is bonded between the first folding wire-grid layer and the second folding wire-grid layer, and the second cellular supporting layer is bonded between the second folding wire-grid layer and the tri linear grid layer; Bonding can the realization between folding wire-grid layer and the cellular supporting layer by epoxy glue;
In addition, each surface in the folding wire-grid layer all is provided with at least four broken line grizzly bars that are parallel to each other, wherein the broken line grizzly bar of second folding on the wire-grid layer is crisscross arranged with the broken line grizzly bar on all the other two-layer folding wire-grid layer, and three layers of trend of rolling over broken line grizzly bar on the wire-grid layer all with the limit of described broken line grid angle at 45; And the thickness of folding wire-grid layer all equates, and rolls over broken line grizzly bar on the wire-grid layer and also all equate along the vertical cycle of broken line grid vertical direction.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
1, this kind broken line grid circular polarizer is made of three layers of printed board, and its general thickness is 6.762 mm, and the thickness of four layers of previous broken line grid circular polarizer is mostly about 10 mm, thus reduced volume, and lower production cost;
2, three layers of broken line grid of this kind circular polarizer middle polyline grizzly bar only needs to process the requirement that just can satisfy high band ripple circular polarization by the common chemical etching technique, than three layers of grizzly bar grid type rounder are applied to required manufacturing process in the high band ripple circular polarization, its manufacturing process is more simple.
Description of drawings
Fig. 1 is the structural representation of individual layer broken line grizzly bar;
Fig. 2 is according to an embodiment of the present utility model, the vertical view of the first folding wire-grid layer and the second folding wire-grid layer;
Fig. 3 is according to an embodiment of the present utility model, the vertical view of the second folding wire-grid layer;
Fig. 4 is according to an embodiment of the present utility model, the stereochemical structure perspective view of these three layers of broken line grid circular polarizers.
Mark among the figure: a is a horizontal cycle, and b is a vertical cycle, and w1 is a vertical fold line grizzly bar live width, and w2 is a horizontal fold line grizzly bar live width, and h is a height, and Ein is an incident wave, E
┴Be vertical component, E
║Be horizontal component, Ψ is an incidence angle, and 1 is the first folding wire-grid layer, and 2 is the second folding wire-grid layer, and 3 is tri linear grid layer.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
These three layers of broken line grid circular polarizers mainly are made of three layers of folding wire-grid layer and two-layer cellular supporting layer, wherein three layers of folding wire-grid layer are respectively the first folding wire-grid layer 1, second folding wire-grid layer 2 and the tri linear grid layer 3, and two-layer cellular supporting layer is respectively the first cellular supporting layer and the second cellular supporting layer.The first cellular supporting layer is bonded between the first and second folding wire-grid layer, and the second cellular supporting layer be bonded in second and tri linear grid layer between, as shown in Figure 4, can be between wherein cellular supporting layer and the folding wire-grid layer by bonding mutually such as the printed board adhesive of epoxy glue.In addition, the structure identical (just geometric parameter is identical) of first folding wire-grid layer and tri linear grid layer, and both are with second to roll over the structure of wire-grid layer different.Can be provided with at least four broken line grizzly bars that are parallel to each other at three layers of folding on the wire-grid layer, and first and tri linear grid layer on the broken line grizzly bar be crisscross arranged with the second broken line grizzly bar of rolling on the wire-grid layer.
Fig. 1 is the structural representation of individual layer broken line grizzly bar in the utility model.The as can be seen from Figure 1 polarization operation principle of broken line grid.When the linear polarization incident wave with the direction incident at broken line grid angle at 45 the time, incident wave Ein is broken down into the component E perpendicular to broken line grid axis
┴With the component E that is parallel to broken line grid axis
║Multilayer broken line grid can make two quadrature component E of linearisation incident wave in certain bandwidth
┴And E
║All produce 90 ° differ each other, thereby level or perpendicular polarization incident wave are converted to circularly polarised wave.During actual the placement, should make incident wave direction and broken line grid axis angle at 45.To E
┴Component, the equivalence of broken line grid is an electric capacity, to E
║Component, the equivalence of broken line grid is an inductance.Parameter shown in Fig. 1: a is the horizontal cycle of broken line grizzly bar along broken line grid horizontal direction, and b is the vertical cycle of broken line grizzly bar along broken line grid vertical direction, and w1 is a vertical fold line grizzly bar live width, and w2 is a horizontal fold line grizzly bar live width, and h is the height of broken line grizzly bar.In addition, l
εBe the thickness of folding wire-grid layer, and l
oBe the thickness of cellular supporting layer.Further, a1, a2, a3 are respectively first, second and the tri linear grid layer middle polyline grizzly bar horizontal cycles along broken line grid horizontal direction, and a1=a3; B is all the vertical cycle along broken line grid vertical direction of first, second and tri linear grid layer, that is to say that the vertical cycles of broken line grizzly bar on these the three layers folding wire-grid layer equate; W11, w12, w13 are respectively vertical fold line grizzly bar live widths on first, second and the tri linear grid layer; W21, w22, w23 are respectively horizontal fold line grizzly bar live widths on first, second and the tri linear grid layer; l
εBe all the thickness of first, second and tri linear grid layer, that is to say that the thickness of three layers of folding wire-grid layer equate; l
oBeing all is the thickness of the first and second cellular supporting layers, that is to say that the thickness of two-layer cellular supporting layer equates.
When using known algebraic method to analyze three layers of broken line grid of this kind circular polarizer, the plane wave Ein of incident can be decomposed into the form of E pattern and H pattern ripple.Application equivalent transmission line theory, analyze the perpendicular polarization component of incident wave and equivalent admittance and the input port voltage that the horizontal polarization component produces respectively on the broken line grid, obtain their reflection coefficient and transmission coefficients according to equivalent network then, take all factors into consideration these two components at last and obtain exporting electromagnetic axial ratio performance at three layers of broken line grid input.In the parametric procedure of calculating broken line grid circular polarizer, can be by importing relevant characters (comprising that working frequency range, axial axis compare etc.) on the equipment of optimizer being equipped with, just can calculate broken line grid circular polarizer and the corresponding dimensional parameters of this performance index, wherein this optimizer is used to calculate the dimensional parameters of broken line grid circular polarizer.According to an embodiment of the present utility model, working frequency range 11 GHz～15 GHz and axial axis are equipped with on the equipment of optimizer than≤3 dB input, equipment is exported following dimensional parameters automatically:
First and the dimensional parameters of tri linear grid layer be: a1=a3=4.9994 mm, b=11.1808 mm, h1=h3=4.9988 mm, w11=w13=1.0335 mm, w21=w23=1.5156 mm, l
ε=0.2540 mm;
The dimensional parameters of the second folding wire-grid layer is: a2=4.2988 mm, b=11.1808 mm, h2=3.3601 mm, w12=1.8261 mm, w22=0.1597 mm, l
ε=0.2540 mm;
The thickness of the first and second cellular supporting layers is: l
o=3 mm.
It should be noted that above-mentioned parameter all is optimum separating, in the manufacture process of these three layers of broken line grid circular polarizers, according to actual conditions, dimensional parameters allows to exist error.
Comprehensive above-mentioned parameter, the general thickness of these three layers of broken line grid circular polarizers is l=3*l
ε+ 2*l
o=6.762 mm are that circular polarizer volume about 10 mm reduces than previous thickness.
First and the vertical view of tri linear grid layer as shown in Figure 2, the vertical view of the second folding wire-grid layer is as shown in Figure 3.All move towards angle at 45 in the trend of these three layers folding wire-grid layer middle polyline grizzly bar with horizontal.Satisfying under the situation of identical performance index, this kind circular polarizer middle polyline grizzly bar is by the surperficial Copper Foil process chemical etch technique machine-shaping of polytetrafluoroethylene copper coated foil plate, than having higher technological requirement in three layers of grizzly bar grid type circular polarizers manufacturing now, its processing is simpler.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1. one kind three layers broken line grid circular polarizer, it is characterized in that, comprise three layers of folding wire-grid layer and two-layer cellular supporting layer, wherein said three layers of folding wire-grid layer are the first folding wire-grid layer, second folding wire-grid layer and the tri linear grid layer, described two-layer cellular supporting layer is the first cellular supporting layer and the second cellular supporting layer, the described first cellular supporting layer is bonded between described first folding wire-grid layer and the described second folding wire-grid layer, the described second cellular supporting layer is bonded between described second folding wire-grid layer and the described tri linear grid layer, and the described first folding wire-grid layer is identical with the structure of the described second folding wire-grid layer.
2. three layers of broken line grid circular polarizer as claimed in claim 1 is characterized in that, also comprise epoxy glue, and are bonding by described epoxy glue between wherein said folding wire-grid layer and the described cellular supporting layer.
3. three layers of broken line grid circular polarizer as claimed in claim 1, it is characterized in that, each surface of described folding wire-grid layer all is respectively arranged with at least four broken line grizzly bars that are parallel to each other, the described broken line grizzly bar of wherein said second folding on the wire-grid layer is crisscross arranged with the described broken line grizzly bar on all the other two-layer folding wire-grid layer, and described three layers of trend of rolling over the above broken line grizzly bar of wire-grid layer all with the limit of described folding wire-grid layer angle at 45.
4. three layers of broken line grid circular polarizer as claimed in claim 2 is characterized in that, the thickness of described folding wire-grid layer all equates, and the above broken line grizzly bar of described folding wire-grid layer is equal along the vertical cycle of broken line grid vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205197672U CN201838689U (en) | 2010-09-07 | 2010-09-07 | Circular polarizer with three layers of fold line grids |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205197672U CN201838689U (en) | 2010-09-07 | 2010-09-07 | Circular polarizer with three layers of fold line grids |
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| CN201838689U true CN201838689U (en) | 2011-05-18 |
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| CN2010205197672U Expired - Fee Related CN201838689U (en) | 2010-09-07 | 2010-09-07 | Circular polarizer with three layers of fold line grids |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629702A (en) * | 2012-04-12 | 2012-08-08 | 中国科学院光电技术研究所 | Multi-frequency circular polarizer based on artificial structure |
| CN106935943A (en) * | 2017-01-12 | 2017-07-07 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The meander line circular polarisation grid of any incident angle degree |
| CN107768839A (en) * | 2017-09-01 | 2018-03-06 | 电子科技大学 | A kind of Terahertz Meta Materials polarization isolation device |
| CN107994347A (en) * | 2017-12-06 | 2018-05-04 | 北京华镁钛科技有限公司 | A kind of reactance loaded antenna meander line circular polarisation grid applied to the incidence of big angle of inclination |
| CN108321505A (en) * | 2017-12-25 | 2018-07-24 | 北京遥测技术研究所 | A kind of flat plate array antenna for X frequency ranges |
| CN108539428A (en) * | 2018-03-27 | 2018-09-14 | 电子科技大学 | A kind of Broadband circularly polarized antenna of omnidirectional radiation |
| CN109524794A (en) * | 2018-11-28 | 2019-03-26 | 四川九洲电器集团有限责任公司 | A kind of shaped form circular polarizer |
| CN109687161A (en) * | 2018-12-29 | 2019-04-26 | 电子科技大学 | A kind of rotary-type broadband ultra wide band transmissive arrays antenna of low RCS polarization |
| CN113851835A (en) * | 2021-12-01 | 2021-12-28 | 陕西海积信息科技有限公司 | Horizontal omnidirectional circularly polarized antenna |
-
2010
- 2010-09-07 CN CN2010205197672U patent/CN201838689U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629702A (en) * | 2012-04-12 | 2012-08-08 | 中国科学院光电技术研究所 | Multi-frequency circular polarizer based on artificial structure |
| CN102629702B (en) * | 2012-04-12 | 2014-10-08 | 中国科学院光电技术研究所 | Multi-frequency circular polarizer based on artificial structure |
| CN106935943A (en) * | 2017-01-12 | 2017-07-07 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The meander line circular polarisation grid of any incident angle degree |
| CN107768839B (en) * | 2017-09-01 | 2020-07-31 | 电子科技大学 | Terahertz metamaterial polarization isolator |
| CN107768839A (en) * | 2017-09-01 | 2018-03-06 | 电子科技大学 | A kind of Terahertz Meta Materials polarization isolation device |
| CN107994347A (en) * | 2017-12-06 | 2018-05-04 | 北京华镁钛科技有限公司 | A kind of reactance loaded antenna meander line circular polarisation grid applied to the incidence of big angle of inclination |
| CN107994347B (en) * | 2017-12-06 | 2023-10-24 | 北京华镁钛科技有限公司 | Reactance loading meanderline circular polarization grid applied to incidence with large inclination angle |
| CN108321505A (en) * | 2017-12-25 | 2018-07-24 | 北京遥测技术研究所 | A kind of flat plate array antenna for X frequency ranges |
| CN108539428A (en) * | 2018-03-27 | 2018-09-14 | 电子科技大学 | A kind of Broadband circularly polarized antenna of omnidirectional radiation |
| CN109524794A (en) * | 2018-11-28 | 2019-03-26 | 四川九洲电器集团有限责任公司 | A kind of shaped form circular polarizer |
| CN109687161A (en) * | 2018-12-29 | 2019-04-26 | 电子科技大学 | A kind of rotary-type broadband ultra wide band transmissive arrays antenna of low RCS polarization |
| CN113851835A (en) * | 2021-12-01 | 2021-12-28 | 陕西海积信息科技有限公司 | Horizontal omnidirectional circularly polarized antenna |
| CN113851835B (en) * | 2021-12-01 | 2022-03-11 | 陕西海积信息科技有限公司 | Horizontal omnidirectional circularly polarized antenna |
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| 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: 20110518 Termination date: 20160907 |