CN203644950U - Compact field antenna based on flat reflective array - Google Patents
Compact field antenna based on flat reflective array Download PDFInfo
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- CN203644950U CN203644950U CN201320674367.2U CN201320674367U CN203644950U CN 203644950 U CN203644950 U CN 203644950U CN 201320674367 U CN201320674367 U CN 201320674367U CN 203644950 U CN203644950 U CN 203644950U
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Abstract
The utility model is suitable for the communication field, and provides a compact field antenna based on a flat reflective array; the compact field antenna is arranged opposite to a feed source, and comprises a meta-material panel and a reflecting layer arranged on one side of the meta-material panel; the meta-material panel comprises at least one meta-material sheet layer; the meta-material sheet layer comprises a medium substrate and a plurality of conductive geometry structures arranged on the medium substrate. Various conductive geometry structures are arranged according to feed source parameters, feed source positions and wave beam transmit-receive directions; different quantification modulation can be generated to electromagnetic wave emitted by the feed source, so the compact field antenna can be set up with low cost.
Description
Technical field
The utility model belongs to antenna communication and can be used for the device design field of electromagnetism modulation, relates in particular to a kind of Compact Range antenna based on flat reflective array.
Background technology
Compact Range is the testing equipment that a kind of spherical wave by smooth reflecting surface, feed being sent within closely becomes plane wave.The plane wave environment that it produces, can fully meet the test request of antenna pattern, thereby reaches the object of within closely, antenna being tested.In Compact Range system, can be divided into Compact Range antenna part and microwave dark room part.Its antenna part adopts accurate reflecting surface, the spherical wave that point source is produced is at a covering device that closely inner conversion is plane wave, conventionally according to designing requirement, its position is installed in microwave dark room exactly, and regulate levelness, by the processing to Compact Range antenna reflective face edge and the cooperation of microwave dark room, create one " dead zone " at space test zone, in dead zone, can simulate the radiation characteristic of measured object in unreflected free space.
With outdoor far field and the comparison of indoor near field, Compact Range system mainly has following characteristics: the Compact Range system that 1, is arranged on microwave dark room has good confidentiality; 2, be arranged on indoor Compact Range climate environmental impact little, improved test condition, and then improved the measurement efficiency of RCS (Radar Cross-Section, RCS); 3, outdoor far field test problem can be converted to measurement of near distance problem in darkroom.
These features have determined that Compact Range is the important testing equipment of research electromagnetic scattering, are also the important infrastructures of the system performance testings such as the whole star test of advanced capabilities radar antenna measurement, satellite, the test of aircraft reflection characteristic.Meanwhile, Compact Range technology is more and more being brought into play irreplaceable effect in military field.No matter be satellite, aircraft, or Stealth Fighter test, the adjustment etc. of the Large-size Arms and Equipments such as guided missile, tank, artillery, all depend on the technical role of performance Compact Range.Can say, the technical merit of Compact Range how, not only restricting performance and the quality of military weapon equipment, is also related to a national national defense safety problem.Therefore, current Ge great military power is all using Compact Range system as one of defense strategy technology, in addition research and development of emphasis.
At present, be engaged in company and the scientific research institutions of electromagnetic product research and development and technical research both at home and abroad, generally all set up the Compact Range system of oneself, very easy to use and quick.Compact Range system, as the sophisticated equipment of modern antennas test, has undoubtedly more and more important technological progress meaning and uses extremely widely prospect.
But traditional design is still deposited following problem: such as price is high, it is high that Compact Range antenna surface is processed dependency degree.
Utility model content
The object of the utility model embodiment is to provide a kind of Compact Range antenna based on flat reflective array, high with workout cost, the problem that surface treatment dependency degree is high.
A kind of Compact Range antenna based on flat reflective array that the utility model provides, is oppositely arranged with feed, and described Compact Range antenna comprises super material panel and is arranged on the reflector of described super material panel one side;
Described super material panel comprises at least one super sheet of material, and described super sheet of material comprises medium substrate and is arranged on the multiple conduction geometries on described medium substrate.
Further, described super material panel comprises the super sheet of material of multiple stacked settings.
Further, it is relative that described feed and described super material panel are provided with edge or the middle part of a side of described conduction geometry.
Further, it is relative that described feed and described super material panel are provided with the middle part of a side of described conduction geometry.
Further, described reflector is attached on described super material panel.
Further, described reflector and described super material panel interval arrange.
Further, described multiple conduction geometry comprises one or more in snowflake type conduction geometry, nested snowflake type conduction geometry, cross frame conduction geometry, nested cross frame conduction geometry, square frame conduction geometry, rhombus grid conduction geometry, nested cross frame cutting conduction geometry.
Further, described reflector is metal coating or metallic film.
Further, described reflector is metal grill structure.
Further, described Compact Range antenna also comprises at least two-layer diaphragm, be separately positioned on described conduction geometry layer and described reflector above.
Further, the peripheral boundary of described Compact Range antenna is also extended the tip of multiple projections, is provided with the multiple conduction geometries for suppressing surface wave on each tip.
Further, the super material panel of polylith that described Compact Range antenna comprises mutual splicing, the same side of each super material panel is provided with reflector.
Above-mentioned Compact Range antenna on medium substrate according to various conduction geometries of arranging such as the transmit-receive positions of feed parameter, feed position, wave beam, the electromagnetic wave that can send feed produces the difference that quantizes modulation, realize the low cost that Compact Range antenna is set up, in addition, utilize the arrange processing of phase method to conduction geometry, make the wave beam phase place the radiating arrival of antenna unanimously can realize Compact Range systematic function, avoid traditional Compact Range antenna need rely on specially designed planform and could realize systematic function, reduced cost, improved efficiency.
Brief description of the drawings
The Compact Range antenna structure view that Fig. 1 provides for the utility model one embodiment;
The Compact Range antenna structure view that Fig. 2 provides for another embodiment of the utility model;
Fig. 3 (A), 3(B) schematic diagram of the individual layer providing for the utility model and the super sheet of material of multilayer;
Fig. 4 provides conduction geometry schematic diagram for the utility model the first embodiment;
Fig. 5 provides conduction geometry schematic diagram for the utility model the second embodiment;
Fig. 6 provides conduction geometry schematic diagram for the utility model the 3rd embodiment;
Fig. 7 provides conduction geometry schematic diagram for the utility model the 4th embodiment;
Fig. 8 provides conduction geometry schematic diagram for the utility model the 5th embodiment;
Fig. 9 provides conduction geometry schematic diagram for the utility model the 6th embodiment;
Figure 10 provides conduction geometry schematic diagram for the utility model the 7th embodiment;
Figure 11 is that the nested snowflake type conduction geometry of Fig. 4 is with the schematic diagram of the variation of growth parameter(s) L;
Figure 12 is that the nested cross frame conduction geometry of Fig. 6 is with the schematic diagram of the variation of growth parameter(s) L;
Figure 13 is that the phase-modulation ability of nested snowflake conduction geometry in Fig. 4 is with the variation resolution chart of frequency and growth parameter(s) L;
Figure 14 is that the phase-modulation ability of independent snowflake conduction geometry in Fig. 5 is with the variation resolution chart of frequency and growth parameter(s);
Figure 15 is that the phase-modulation ability of nested cross frame conduction geometry in Fig. 6 is with the variation resolution chart of frequency and length parameter;
Figure 16 be in Fig. 7 single cross frame conduction geometry phase-modulation ability with the variation resolution chart of frequency and length parameter;
Figure 17 be in Fig. 9 square frame conduction geometry position modulation capability with the variation resolution chart of frequency and length parameter;
Figure 18 is the utility model embodiment cremasteric reflex layer structural representation.
Embodiment
In order to make the technical problems to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that tool band embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
With reference to figure 1,2, the Compact Range antenna system that the utility model provides is covered with and is conducted electricity the super material panel of geometry and form by a feed and one.Compact Range antenna 10 is placed on apart from feed 20 height h places, it is uniform that this face receives that electromagnetic width that feed 20 launches distributes mutually, the width of every bit distributes mutually and is directly proportional to the distance of feed 20 to this point, for making antenna overall emission go out the plane wave that Compact Range needs, electromagnetic wave is after the modulation of this Compact Range antenna 10, need by unified value of phase place furnishing a little.The phase-modulation ability that following example is shown by the partial data using Ku frequency range as illustrated example.
As shown in Figure 1, a kind of Compact Range antenna 10 based on flat reflective array, is oppositely arranged with feed 20, and Compact Range antenna 10 comprises super material panel and is arranged on the reflector 200 of super material panel one side; Super material panel 100 comprises at least one super sheet of material, and super sheet of material comprises medium substrate 101 and is arranged on the multiple conduction geometries on medium substrate 101.And for convenience of description, the multiple conduction geometries on accompanying drawing 1,2 use the conduction geometry layer 102 of its formation to represent.
In a further embodiment, with reference to figure 3(A) and 3(B), shown in Fig. 3 A is the embodiment that super material panel 100 comprises a super sheet of material; And Fig. 3 (B), according to scene needs, super material panel 100 comprises the super sheet of material of multiple stacked settings, each super sheet of material is cascading with medium substrate 101, conduction geometry layer 102, to strengthen the performance of Compact Range antenna.
In a further embodiment, with reference to figure 1, the edge of a side that feed 20 and super material panel 100 are provided with conduction geometry is relative; With reference to figure 2, or feed 20 and super material panel 100 to be provided with the middle part of a side of conduction geometry relative.Two kinds of different feed placement locations are mainly the needs according to application scenarios, consider the directionality problem that the electromagnetic beam that reflected by Compact Range antenna 10 is blocked and select different setting.Be understandable that, Compact Range antenna 10 can regulate according to actual conditions with the position in opposite directions of feed 20.
In a further embodiment, reflector 200 is attached on super material panel 100, actual be attached to medium substrate 101 do not arrange conduction geometry a side.Further, the reflector 200 of Compact Range antenna 10 can also arrange with super material panel 100 intervals, fixes connection by supporting construction.Certainly for the stable and antenna of antenna service behaviour firmly for the purpose of, can also between reflector 200 and super material panel 100, wall 300 be set, be to be separated by with wall 300 between reflector 100 and super material panel 100, wall 300 can be that foam compacting forms.
Preferably, multiple conduction geometries comprise that nested snowflake type conduction geometry A(is with reference to figure 4), snowflake type conduction geometry A`(is with reference to figure 5), nested cross frame conduction geometry B(is with reference to figure 6), cross frame conduction geometry B`(is with reference to figure 7), nested cross frame cutting conduction geometry B``(is with reference to figure 8), square frame conduction geometry C(is with reference to figure 9), rhombus grid conduction geometry D(is with reference to Figure 10) in one or more.
Above-mentioned conduction geometry is the micro-structural for being made up of metal or nonmetallic electric conducting material all, and micro-structural is to be attached on medium substrate 101 by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.The metal of making micro-structural can be gold, silver, copper, billon, silver alloy, copper alloy, kirsite or aluminium alloy; The non-metallic conducting material of making micro-structural can be electrically conductive graphite, indium tin oxide or Al-Doped ZnO.Fill area in Fig. 4～12 is made up of metal or nonmetallic electric conducting material, and the fill area in Figure 18 is made up of metal." micro-structural " word hereinafter occurring is considered as being equal to " conduction geometry ".
According to radio relative theory, the growth parameter(s) L of adjusting micro-structural, live width, spacing are to change in designated frequency range electromagnetic phase-modulation.With reference to figures 13 to Figure 17.
In conjunction with Fig. 4,5,11 and 13, design snowflake type micro-structural forms Compact Range antenna surface, is made up of independent snowflake type micro-structural A` or nested snowflake type micro-structural A.The parameters such as adjustment structure growth parameter(s) (being defined as L), live width, spacing can make single micro-structural change in designated frequency range to electromagnetic phase-modulation ability.To change micro-structural length L as example, microstructure size is 4mm, much smaller than the half-wavelength size of about 10-15mm within the scope of respective frequencies.
In emulation, Figure 13 is known, microstructured layers 102 functional units that this nested snowflake type micro-structural A forms change to from minimum (correspondingly-sized minimum) at growth parameter(s) L in the process of maximum (correspondingly-sized maximum) (as Figure 11 from left to right as shown in), it is obvious in 10 to 20GHz the electromagnetic phase-modulation capacity variation of perpendicular polarization to frequency range, in subregion, its phase modulation ability coverage is greater than 360 degree, as shown in figure 13, the corresponding different growth parameter(s) L numerical value of each curve wherein.
In conjunction with Fig. 5 and Figure 14, Figure 14 has shown the situation of change of independent its phase-modulation ability of snowflake type micro-structural A` with frequency and growth parameter(s), and wherein every curve has represented a different growth parameter(s) numerical value, and overall microstructure size is 4mm.Can find out that its phase-modulation coverage can reach approximately 300 degree.
In conjunction with Fig. 6,12,15, the nested cross frame micro-structural B that this embodiment microstructure size is 7mm, is less than half-wavelength corresponding to observed example frequency ranges, as shown in Figure 6.In this embodiment, will show as an example with the situation of change of the growth parameter(s) L of micro-structural the effect that nested cross frame micro-structural B is brought with its phase-modulation ability.With the variation pattern of growth parameter(s) L as shown in figure 12, wherein growth parameter(s) L becomes large to this structure from left to right.Figure 15 has shown the variation of its phase-modulation ability within the scope of 9 to 16GHz with growth parameter(s) L, the wherein corresponding different growth parameter(s) L numerical value of each curve, specifically as shown in Table 1.
Table one:
| Growth parameter(s) L | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | L9 | L10 |
| Size (mm) | 2 | 2.225 | 2.45 | 2.675 | 2.9 | 3.125 | 3.35 | 3.575 | 3.8 | 4.025 |
| Growth parameter(s) L | L11 | L12 | L13 | L14 | L15 | L16 | L17 | L18 | L19 | L20 |
| Size (mm) | 4.25 | 4.475 | 4.7 | 4.925 | 5.15 | 5.375 | 5.6 | 5.825 | 6.025 | 6.25 |
In conjunction with Fig. 7 and 16, show single cross frame micro-structural B` figure signal.Figure 16 has shown the situation of change of single its phase-modulation ability of cross frame micro-structural B` with frequency and growth parameter(s) L, and wherein every curve has represented a different length parameter numerical value, specifically as shown in Table 1.Its phase-modulation coverage can reach approximately 300 degree.
In conjunction with Fig. 9 and Figure 17, Fig. 9 shows the pattern of square frame micro-structural C, and Figure 17 phase-modulation ability is with the variation of growth parameter(s) L, the nested micro-structural C of square frame that microstructure size is 12mm.
In a further embodiment, the width of micro-structural mutually distribution be directly proportional to the distance of micro-structural and feed 20.
In a further embodiment, reflector 200 is metal coating or metallic film.With reference to Figure 18, and reflector 200 can be also metal grill structure.
In a further embodiment, with reference to Fig. 1 and 2, Compact Range antenna 10 also comprises at least two-layer diaphragm 400, be separately positioned on microstructured layers 102 and reflector 200 above.Specifically acting as of diaphragm 400 is set and protects microstructured layers 102 and reflector 200.
The various micro-structurals that more than relate to have determined that the micro-structural of different parameters can produce the difference that quantizes modulation to electromagnetic wave, as phase place etc.Design Compact Range antenna, micro-structural on super material panel 100 arrange according to being feed parameter, feed position, wave beam transmit-receive position etc., these parameters have determined the performance parameter that on super material panel 100, each micro-structural should possess, and could insert corresponding micro-structural in conjunction with simulation result according to this performance parameter.In the time that the micro-structural system of selecting changes, plate-making method and rule are constant, are only that each micro-structural changes.
In the time of practical application, the Compact Range antenna area that some application scenarios need is larger, so just need to mutually be spliced to form larger Compact Range antenna by the super material panel of polylith, and the same side of each super material panel is provided with reflector, with practical requirement.
In order to make the performance of Compact Range more superior, can also extend in the peripheral boundary of Compact Range antenna the tip (for example, being similar to the dentalation on gear) of multiple projections, on each tip, be provided with the multiple micro-structurals for suppressing surface wave.The micro-structural concrete shape here can design as required, and the utility model does not limit this.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (12)
1. the Compact Range antenna based on flat reflective array, is oppositely arranged with feed, it is characterized in that, described Compact Range antenna comprises super material panel and is arranged on the reflector of described super material panel one side;
Described super material panel comprises at least one super sheet of material, and described super sheet of material comprises medium substrate and is arranged on the multiple conduction geometries on described medium substrate.
2. the Compact Range antenna based on flat reflective array as claimed in claim 1, is characterized in that, described super material panel comprises the super sheet of material of multiple stacked settings.
3. the Compact Range antenna based on flat reflective array as claimed in claim 1, is characterized in that, the edge of a side that described feed and described super material panel are provided with described conduction geometry is relative.
4. the Compact Range antenna based on flat reflective array as claimed in claim 1, is characterized in that, it is relative that described feed and described super material panel are provided with the middle part of a side of described conduction geometry.
5. the Compact Range antenna based on flat reflective array as claimed in claim 1, is characterized in that, described reflector is attached on described super material panel.
6. the Compact Range antenna based on flat reflective array as claimed in claim 1, is characterized in that, described reflector and described super material panel interval arrange.
7. the Compact Range antenna based on flat reflective array as described in claim 1 to 6 any one, it is characterized in that, described multiple conduction geometries comprise one or more in snowflake type conduction geometry, cross frame conduction geometry, square frame conduction geometry.
8. the Compact Range antenna based on flat reflective array as claimed in claim 1, is characterized in that, described reflector is metal coating or metallic film.
9. the Compact Range antenna based on flat reflective array as claimed in claim 1, is characterized in that, described reflector is metal grill structure.
10. the Compact Range antenna based on flat reflective array as claimed in claim 1, is characterized in that, described Compact Range antenna also comprises at least two-layer diaphragm, be separately positioned on described conduction geometry layer and described reflector above.
The 11. Compact Range antennas based on flat reflective array as claimed in claim 1, is characterized in that, the peripheral boundary of described Compact Range antenna is also extended the tip of multiple projections, are provided with the multiple conduction geometries for suppressing surface wave on each tip.
12. Compact Range antennas based on flat reflective array as described in claim 1 or 11, is characterized in that, the super material panel of polylith that described Compact Range antenna comprises mutual splicing, and the same side of each super material panel is provided with reflector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320674367.2U CN203644950U (en) | 2013-10-29 | 2013-10-29 | Compact field antenna based on flat reflective array |
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| CN201320674367.2U CN203644950U (en) | 2013-10-29 | 2013-10-29 | Compact field antenna based on flat reflective array |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470661A (en) * | 2015-11-30 | 2016-04-06 | 成都亿豪智科技有限公司 | Millimeter-wave dual-layer dual-frequency dual-polarization planar reflection array antenna |
| CN105490022A (en) * | 2016-01-15 | 2016-04-13 | 北京航空航天大学 | Multi-channel compact antenna test range feed source |
| CN106299720A (en) * | 2015-05-26 | 2017-01-04 | 深圳光启高等理工研究院 | Meta Materials, eyelid covering and aircraft |
| CN107611623A (en) * | 2017-07-21 | 2018-01-19 | 西安普腾电子科技有限公司 | A kind of high efficiency tightens radiation field of aerial and target scattering test system |
| CN107706540A (en) * | 2017-08-30 | 2018-02-16 | 西安普腾电子科技有限公司 | A kind of rectangle high efficiency tightens radiation field of aerial and target scattering test system |
| CN108539436A (en) * | 2018-04-18 | 2018-09-14 | 北京航空航天大学 | A kind of broadband reflection battle array deflation field device of the off-axis low-angle offset-fed of wide-angle |
| CN108732427A (en) * | 2018-04-02 | 2018-11-02 | 北京环境特性研究所 | A kind of phase compensation Reflector Panel for the test of Compact Range darkroom |
| CN110221131A (en) * | 2019-07-04 | 2019-09-10 | 苏州特拉芯光电技术有限公司 | A kind of Terahertz Compact Range test macro based on E-scan antenna |
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2013
- 2013-10-29 CN CN201320674367.2U patent/CN203644950U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299720A (en) * | 2015-05-26 | 2017-01-04 | 深圳光启高等理工研究院 | Meta Materials, eyelid covering and aircraft |
| CN105470661A (en) * | 2015-11-30 | 2016-04-06 | 成都亿豪智科技有限公司 | Millimeter-wave dual-layer dual-frequency dual-polarization planar reflection array antenna |
| CN105470661B (en) * | 2015-11-30 | 2020-03-17 | 机比特电子设备南京有限公司 | Millimeter wave double-layer double-frequency dual-polarized planar reflective array antenna |
| CN105490022A (en) * | 2016-01-15 | 2016-04-13 | 北京航空航天大学 | Multi-channel compact antenna test range feed source |
| CN105490022B (en) * | 2016-01-15 | 2018-06-19 | 北京航空航天大学 | Multichannel compact feed |
| CN107611623A (en) * | 2017-07-21 | 2018-01-19 | 西安普腾电子科技有限公司 | A kind of high efficiency tightens radiation field of aerial and target scattering test system |
| CN107706540A (en) * | 2017-08-30 | 2018-02-16 | 西安普腾电子科技有限公司 | A kind of rectangle high efficiency tightens radiation field of aerial and target scattering test system |
| CN108732427A (en) * | 2018-04-02 | 2018-11-02 | 北京环境特性研究所 | A kind of phase compensation Reflector Panel for the test of Compact Range darkroom |
| CN108539436A (en) * | 2018-04-18 | 2018-09-14 | 北京航空航天大学 | A kind of broadband reflection battle array deflation field device of the off-axis low-angle offset-fed of wide-angle |
| CN108539436B (en) * | 2018-04-18 | 2020-10-02 | 北京航空航天大学 | Wide-angle off-axis small-angle offset-fed broadband reflection array compact field device |
| CN110221131A (en) * | 2019-07-04 | 2019-09-10 | 苏州特拉芯光电技术有限公司 | A kind of Terahertz Compact Range test macro based on E-scan antenna |
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