CN203859230U - Bandpass filter metamaterial, antenna housing and antenna system - Google Patents
Bandpass filter metamaterial, antenna housing and antenna system Download PDFInfo
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- CN203859230U CN203859230U CN201420123430.8U CN201420123430U CN203859230U CN 203859230 U CN203859230 U CN 203859230U CN 201420123430 U CN201420123430 U CN 201420123430U CN 203859230 U CN203859230 U CN 203859230U
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Abstract
The utility model discloses a bandpass filter metamaterial, an antenna housing and an antenna system. The bandpass filter metamaterial comprises multiple function layers which comprise a dielectric layer and a conductive geometry structure arranged on the dielectric layer. The conductive geometry structure on the dielectric layer in at least one layer of the function layer in the multiple function layers is a conductive piece, and the dielectric layer in another layer of the function layers is a grid-like conductive geometry structure. Through the dielectric layer and the conductive geometry structure of the bandpass filter metamaterial, the bandpass filter metamaterial has the dielectric constant and the magnetic permeability such that when electromagnetic wave passes through the bandpass filter ultra metamaterial, the electromagnetic wave of a preset working band passes through the bandpass filter metamaterial, and the electromagnetic wave of other bands is stopped. According to the bandpass filter metamaterial, the antenna housing and the antenna system, the wave-transmitting effect of the antenna housing is improved.
Description
Technical field
The utility model relates to filtering Material Field, in particular to the super material of a kind of bandpass filtering, radome and antenna system.
Background technology
Usually, antenna all can be provided with radome, is not subject to the environmental impact of wind and rain, ice and snow etc. for the protection of antenna.Existing radome is pure material radome substantially, only plays the effect of protection antenna, uses pure material radome in certain scope, can affect the performance of antenna.Wherein, be common physical material for the pure material of making radome, in the time making pure material radome, utilize half-wavelength or quarter-wave theory, when the thickness of radome is a half of antenna working frequency range electromagnetic wavelength, the electromagnetic wave penetrability of antenna is best.According to different antenna frequencies, change the thickness of pure material, in order to reduce electromagnetic wave transparent response.In designing and producing pure material radome, in the time that the wavelength of radiated wave of antenna is long, utilize half-wavelength or quarter-wave theory, it is thicker that pure material radome can seem, and then make the weight of whole radome excessive.In addition, the wave transparent characteristic of common pure material radome in broadband and wideangle is poor, affects antenna performance, and cut-off characteristics deviation outside passband, bad to the electromagnetic wave suppression characteristic outside antenna working frequency range.
For the bad problem of radome wave transparent effect in prior art, effective solution is not yet proposed at present.
Utility model content
Main purpose of the present utility model is to provide the super material of a kind of bandpass filtering, radome and antenna system, to solve the bad problem of radome wave transparent effect.
To achieve these goals, according to an aspect of the present utility model, provide a kind of bandpass filtering super material.Comprise according to the super material of bandpass filtering of the present utility model: multiple function layers, functional layer comprises dielectric layer and is arranged on the conduction geometry on dielectric layer, wherein, conduction geometry on dielectric layer in multiple function layers at least one one functional layer is conducting strip, is latticed conduction geometry on the dielectric layer in another one functional layer;
The dielectric layer of the super material of wherein said bandpass filtering and conduction geometry make this bandpass filtering material have such dielectric constant and magnetic permeability: electromagnetic wave is when by the super material of this bandpass filtering, the electromagnetic wave of default working frequency range penetrates the super material of this bandpass filtering, and the electromagnetic wave of other frequency ranges is cut off.
To achieve these goals, according to an aspect of the present utility model, provide a kind of radome to comprise the super material of above-mentioned bandpass filtering, radome is located on antenna.
To achieve these goals, according to an aspect of the present utility model, provide a kind of antenna system to comprise: antenna and above-mentioned radome, radome is located on antenna.
Pass through the utility model, adopt the super material multiple function layers of bandpass filtering, functional layer comprises dielectric layer and is arranged on the conduction geometry on dielectric layer, wherein, conduction geometry on dielectric layer in multiple function layers at least one one functional layer is conducting strip, it on dielectric layer in another one functional layer, is latticed conduction geometry, according to conduction geometries different in dielectric layer, dielectric constant and the magnetic permeability of the super material of accommodation zone pass filter, make the electromagnetic wave in passband there is high-permeability, solve the bad problem of radome wave transparent effect, and then improve radome to the wave transparent effect in passband.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is according to the cutaway view of the super material of bandpass filtering of the utility model embodiment;
Fig. 2 is according to the schematic diagram of the matrix pattern structure of the utility model embodiment;
Fig. 3 is according to the schematic diagram of the super material of bandpass filtering of the utility model the first embodiment;
Fig. 4 is the S21 parameters simulation curve synoptic diagram according to the super material of bandpass filtering of the utility model the first embodiment; And
Fig. 5 is the S21 parameters simulation curve synoptic diagram according to the super material of bandpass filtering of the utility model the second embodiment.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The utility model embodiment provides a kind of bandpass filtering super material.
Fig. 1 is according to the cutaway view of the super material of bandpass filtering of the utility model embodiment.As shown in Figure 1, the super material of this bandpass filtering comprises multiple function layers, functional layer comprises dielectric layer 20 and is arranged on the conduction geometry 10 on dielectric layer, wherein, conduction geometry on dielectric layer 20 in multiple function layers at least one one functional layer is conducting strip, is latticed conduction geometry on the dielectric layer in another one functional layer.The super material of bandpass filtering can comprise multiple function layers, wherein, multiple function layers can be the functional layer that comprises that the conduction geometry on one deck or multilayer dielectricity layer is conducting strip, and multiple function layers can be to comprise that the latticed conduction geometry on one deck or multilayer dielectricity layer can be one deck.
Dielectric layer 20 has certain mechanical strength, and dielectric layer 20 can adopt the physical materials such as polytetrafluoroethylene, also can adopt other for example pottery of nonmetal physics material etc.Conduction geometry can be for having matrix pattern structure or snowflake type structure or the square piece type structure of conductivity.Conduction geometry can adopt metal material, as gold, silver, copper etc., also can adopt nonmetallic materials, as graphite etc.
By the utility model embodiment, adopt the super material multiple function layers of bandpass filtering, functional layer comprises dielectric layer and is arranged on the conduction geometry on dielectric layer, wherein, conduction geometry on dielectric layer in multiple function layers at least one one functional layer is conducting strip, it on dielectric layer in another one functional layer, is latticed conduction geometry, according to conduction geometries different in dielectric layer, dielectric constant and the magnetic permeability of the super material of accommodation zone pass filter, make the electromagnetic wave in passband there is high-permeability, solve the bad problem of radome wave transparent effect, and then improve radome to the wave transparent effect in passband.
Preferably, in multiple function layers, between adjacent two functional layers, can be provided with interlayer, also can there is no interlayer, in the time can being provided with interlayer between adjacent two functional layers, in this interlayer, can be provided with the material of foam and/or honeycomb.The surface of functional layer is provided with protective layer.This protective layer can be arranged on functional layer one side, also can be arranged on the both sides of functional layer, can make the super material of bandpass filtering have certain mechanical strength not suffer damage with the super material of boundary belt pass filter by protective layer is set.
In multiple function layers, between adjacent two layers functional layer, can be oppositely arranged, the setting of can staggering, can be also that interval arranges, and set-up mode is flexible, can select as required.
Preferably, it can be latticed by what in triangle, quadrangle, pentagon, hexagon, circle or ellipse, at least one connected in functional layer, conducting electricity the latticed of geometry.Wherein, latticed grid can be sealing, can be also opening.Further, in latticed grid, can also be provided with the conduction geometry that straight line or curve form, this conduction geometry comprises cross structure, yi word pattern structure, snowflake type structure, I-shaped structure, resonant ring structure and cross distressed structure, and wherein cross distressed structure can be that Yale spreads cold cross structure.According to the difference of the conduction geometry in different grid and grid can the super material of accommodation zone pass filter to electromagnetic wave transparent or suppression characteristic.
Preferably, conducting strip is the conducting strip of at least one shape in triangle, quadrangle, pentagon, hexagon, circle and ellipse.Also go up hollow out at conducting strip and be provided with conduction geometry, that this conduction geometry can comprise that straight line or curve form is cross, the electric wire of yi word pattern, snowflake type, I-shaped structure, resonant ring structure and cross distressed structure, and wherein cross distressed structure can be that Yale spreads cold cross structure.Conducting strip and electric wire contain following any or several combination metal material: solid metal material, liquid metals material, flow-like metal material and powder metal material.Metal material is not limited to the metal such as gold, silver, copper, can also use other metal or alloy.Metal material can be solid metal material, liquid metals material, flow-like metal material and powder metal material, can be being also used in combination of metal material under various states.Thereby by adopting different conducting strips to affect the wave transparent characteristic with the super material of passband ripple.
Shape, size and the spacing of the different conducting strip in same functional layer are identical or different.Shape, size and the spacing of the conducting strip of different functional layers are identical or different.Shape, size, live width and the spacing of the conduction geometry between different functional layers are identical or different.Shape, size, live width and the spacing of the difference conduction geometry of same functional layer are identical or different.
Preferably, that electric wire comprises that straight line or curve form is cross, yi word pattern, snowflake type and cross distressed structure, can also comprise at least one in matrix pattern structure, snowflake type structure or the square piece type structure that straight line or curve form.Wherein, matrix pattern structure is the matrix pattern structure of four jiaos of openings; Snowflake type structure is placed in the conduction geometry with center hollow out circle, and snowflake type structure is positioned at the center of center hollow out circle; Square piece type structure comprises the square piece structure of disconnected square piece structure and connection, and the square piece structure of connection is hollow out square piece grid.
Fig. 2 is according to the schematic diagram of the matrix pattern structure of the utility model embodiment.As shown in Figure 2, matrix pattern structure is the matrix pattern structure of four jiaos of openings.Four jiaos of opening sizes of matrix pattern structure are identical.A shown in Fig. 2 is the length of matrix pattern structure, and b is the width of matrix pattern structure, and d represents the live width of matrix pattern structure.In the time that the super material of bandpass filtering comprises multiple function layers, the live width d of the matrix pattern structure in any two difference in functionality layers can equate, also can be unequal, and matrix pattern structural thickness is identical.Live width d represents the width of lines in electric wire.
The snowflake type structure of the utility model embodiment can be placed in the conduction geometry unit with center hollow out circle, and snowflake type structure is positioned at the center of center hollow out circle.Conduction geometry is square shaped cells, and the center of circle of center hollow out circle and foursquare center are at same position.Cross structure in the middle of snowflake type structure comprises and the yi word pattern structure at cross structural endpoint place, the wherein length of cross structure and wide equating, and cross length represents the length on the long limit of snowflake type structure, the identical length of yi word pattern structure etc., and the length of the minor face of expression snowflake type structure.
Preferably, conduction geometry adopts following any or several combination metal material: solid metal material, liquid metals material, flow-like metal material and powder metal material.Metal material is not limited to the metal such as gold, silver, copper, can also use other metal or alloy.Metal material can be solid metal material, liquid metals material, flow-like metal material and powder metal material, can be also many in being used in combination of metal material under states.By the present embodiment, adopt metal material, can make electromagnetic wave more easily penetrate the super material of bandpass filtering.
Preferably, the conduction geometry in the present embodiment adopts liquid ag material, can make electromagnetic wave more easily penetrate the super material of bandpass filtering.
Preferably, dielectric layer 20 is composite substrate or ceramic substrate, for increasing the mechanical strength of functional layer.Wherein, composite material can adopt thermosets, also can adopt thermoplastic.For example, composite material can be one deck structural material or the sandwich that comprises fiber, foam and/or honeycomb.
Further preferably, this composite material also contains reinforcing material, and this reinforcing material is at least one in fiber, fabric or particle, by increasing enhancement mode material, in order to strengthen the mechanical strength of functional layer.In general, the DIELECTRIC CONSTANT ε of dielectric layer should meet: 1≤ε≤5.
Concrete condition during according to enforcement, the thickness of conduction geometry can be 1 to 50 micron.Preferably, the thickness of conduction geometry is 10 to 30 microns.More preferably, the thickness of conduction geometry can be 16 to 20 microns.The thickness of conduction geometry is 16 to 20 microns.The width of described conduction geometry is 2 to 6 millimeters.Conduction geometry live width difference between different described functional layers, if the live width of conduction geometry is 20 to 1000 microns.Preferably, the live width of conduction geometry is 50 to 500 microns.More preferably, the live width of conduction geometry is 100 to 200 microns.
The span of dielectric layer 20 relative dielectric constants of the utility model embodiment can be 2.8～3.1.The thickness of dielectric layer 20 can be 0.2～4mm.The thickness of conduction geometry is 0.018mm.Radome adopts the super material of bandpass filtering of the utility model embodiment, and the electromagnetic wave that working frequency range is produced at the antenna of 6.5～16GHz has good transmissison characteristic, and wave transparent rate is higher.
Example 1:
Fig. 3 is according to the schematic diagram of the super material of bandpass filtering of the utility model the first embodiment.As shown in Figure 3, the super material of bandpass filtering comprises first medium layer 201, second medium layer 202 and the 3rd dielectric layer 203, and the relative dielectric constant of first medium layer 201, second medium layer 202 and the 3rd dielectric layer 203 equates.And the relative dielectric constant of first medium layer 201, second medium layer 202 and the 3rd dielectric layer 203 is 3.
First medium layer 201, second medium layer 202 are identical with the thickness of the 3rd dielectric layer 203, are 4mm.
The super material of bandpass filtering comprises the first conduction geometry 101, the second conduction geometry 102, the 3rd conduction geometry 103 and the 4th conduction geometry 104, the first conduction geometry 101 is placed in the surface of first medium layer 201, the second conduction geometry 102 is placed between first medium layer 201 and second medium layer 202, the 3rd conduction geometry 103 is placed between second medium layer 202 and the 3rd dielectric layer 203, and the 4th conduction geometry 104 is placed in the surface of the 3rd dielectric layer 203.Wherein, the thickness of the conduction geometry in the first conduction geometry 101, the second conduction geometry 102, the 3rd conduction geometry 103 and the 4th conduction geometry 104 is identical.The thickness of the conduction geometry of each conduction geometry is 0.018 millimeter.
The electric wire of the conduction geometry in the first conduction geometry 101, the second conduction geometry 102, the 3rd conduction geometry 103 and the 4th conduction geometry 104 is matrix pattern structure.And the length a of the matrix pattern structure between each layer is equal, width b also equates.
The length a of matrix pattern structure is 9mm, and width is 3mm.The live width d of the conduction geometry in the first conduction geometry 101 is 0.5 millimeter, the live width d of the conduction geometry in the second conduction geometry 102 is 0.7 millimeter, the live width d of the conduction geometry in the 3rd conduction geometry 103 is 0.7 millimeter, and the live width d of the conduction geometry in the 4th conduction geometry 104 is 0.5 millimeter.
It should be noted that, Fig. 3 medium layer is all placed between two conduction geometries, and the dielectric layer of entity not shown in FIG. is in order to describe better connecting each other between each conduction geometry, the utility model not to be had to improper restriction.
Fig. 4 is the S21 parameters simulation curve synoptic diagram according to the super material of bandpass filtering of the utility model the first embodiment.As shown in Figure 4, the operating frequency that transverse axis is antenna, the longitudinal axis is S21 parameter.Wherein the unit of the operating frequency of antenna is GHz, and the unit of S21 parameter is dB.As can be seen from the figure, when the electromagnetic wave of antenna, comprise TE mould (English name TE mode, be illustrated in waveguide, the longitudinal component of electric field is zero, and the non-vanishing communication mode of the longitudinal component in magnetic field) and TD mould (English name TM mode, is illustrated in waveguide, the longitudinal component in magnetic field is zero, and the non-vanishing communication mode of the longitudinal component of electric field) S21 parameters simulation result while being radiated the super material of bandpass filtering in above-described embodiment.The electromagnetic wave of frequency between 13～16GHz has good wave transparent characteristic, and the electromagnetic wave of frequency outside 13～16GHz obtained obvious inhibitory action.Frequency is less than the electromagnetic wave in 13GHz interval, and along with reducing of frequency, the super material of bandpass filtering is better to electromagnetic suppression characteristic; Frequency is greater than the electromagnetic wave in 16GHz interval, and along with the increase of frequency, the super material of bandpass filtering is also better to electromagnetic suppression characteristic.
Example 2:
The super material of bandpass filtering comprise functional layer once, the relative dielectric constant of dielectric layer 20 is 2.8, thickness is 0.9mm.Conduction geometry comprises multiple snowflake type structures, and snowflake type structure is placed in the conduction geometry unit with center hollow out circle, and snowflake type structure is positioned at the center of center hollow out circle.The unit of conduction geometry is square shaped cells, and the length of side of square shaped cells is 10mm.The center of circle of center hollow out circle and the center of square shaped cells are at same position, and center hollow out radius of a circle is 4.3mm.Cross structure in the middle of snowflake type structure comprises and the yi word pattern structure at cross end points place, the wherein length of cross structure and wide equal, and cross length represents the length on the long limit of snowflake type structure, the length on its long limit is 5mm.The identical length of yi word pattern structure etc., and the length of the minor face of expression snowflake type structure, the length of its minor face is 4.3mm.Snowflake type structure adopts liquid ag material, and its thickness is 0.018mm.The live width of snowflake type structure is 0.4mm.
Fig. 5 is the S21 parameters simulation curve synoptic diagram according to the super material of bandpass filtering of the utility model the second embodiment.As shown in Figure 5, the operating frequency that transverse axis is antenna, the longitudinal axis is S21 parameter.Wherein the unit of the operating frequency of antenna is GHz, and the unit of S21 parameter is dB.As can be seen from the figure, when the electromagnetic wave of antenna, comprise TE mould (English name TE mode, be illustrated in waveguide, the longitudinal component of electric field is zero, and the non-vanishing communication mode of the longitudinal component in magnetic field) and TD mould (English name TM mode, is illustrated in waveguide, the longitudinal component in magnetic field is zero, and the non-vanishing communication mode of the longitudinal component of electric field) S21 parameters simulation result while being radiated the super material of bandpass filtering in above-described embodiment.
The electromagnetic loss S21 wave transparent rate value of frequency range in 12～14.5GHz is all less than 1, represents that the electromagnetic wave wave transparent rate in this band frequency is very high, realized the performance requirement of the electromagnetic wave high-transmission rate to working frequency range.The electromagnetic wave of frequency between 12～14.5GHz has good wave transparent characteristic, and the electromagnetic wave of frequency outside 12～14.5GHz obtained obvious inhibitory action.Frequency is less than the electromagnetic wave in 12GHz interval, and along with reducing of frequency, the super material of bandpass filtering is better to electromagnetic suppression characteristic; Frequency is greater than the electromagnetic wave in 14.5GHz interval, and along with the increase of frequency, the super material of bandpass filtering is also better to electromagnetic suppression characteristic.
Also provide a kind of antenna system according to the utility model embodiment, this antenna system comprises the radome that antenna and the utility model embodiment provide, and this radome is located on antenna.
By the utility model embodiment; adopt antenna system to comprise the radome that antenna and the utility model embodiment provide; wherein; radome is located on antenna; both ensured that frequency was in the electromagnetic high wave transparent of 6.5～16GHz internal antenna; and the signal outside working frequency range is played to the effect of filtering, for the normal work of antenna provides more excellent protection of the environment.
These are only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (25)
1. the super material of bandpass filtering, it is characterized in that, comprise: multiple function layers, described functional layer comprises dielectric layer and is arranged on the conduction geometry on described dielectric layer, wherein, in described multiple function layers, at least the conduction geometry on the dielectric layer in functional layer is conducting strip described in one deck, is latticed conduction geometry on the dielectric layer in another layer of described functional layer;
The dielectric layer of the super material of wherein said bandpass filtering and conduction geometry make this bandpass filtering material have such dielectric constant and magnetic permeability: electromagnetic wave is when by the super material of this bandpass filtering, the electromagnetic wave of default working frequency range penetrates the super material of this bandpass filtering, and the electromagnetic wave of other frequency ranges is cut off.
2. the super material of bandpass filtering according to claim 1, is characterized in that, is provided with interlayer described in multilayer in functional layer described in adjacent two between functional layer.
3. the super material of bandpass filtering according to claim 1, is characterized in that, the surface of described functional layer is provided with protective layer.
4. the super material of bandpass filtering according to claim 1, is characterized in that, described latticed latticed for what in triangle, quadrangle, pentagon, hexagon, circle and ellipse, at least one connected into.
5. the super material of bandpass filtering according to claim 1, is characterized in that, described grid in latticed be sealing or opening.
6. the super material of bandpass filtering according to claim 1, it is characterized in that, in described latticed grid, be further provided with the conduction geometry that straight line or curve form, this conduction geometry comprises cross structure, yi word pattern structure, snowflake type structure, I-shaped structure, resonant ring structure and cross distressed structure.
7. the super material of bandpass filtering according to claim 1, is characterized in that, described conducting strip be shaped as at least one in triangle, quadrangle, pentagon, hexagon, circle and ellipse.
8. the super material of bandpass filtering according to claim 1, is characterized in that, on described conducting strip, hollow out is provided with how much mechanisms of conduction.
9. the super material of bandpass filtering according to claim 8, it is characterized in that, that described conduction geometry comprises that straight line or curve form is cross, the electric wire of yi word pattern, snowflake type, I-shaped structure, resonant ring structure and cross distressed structure.
10. the super material of bandpass filtering according to claim 1, is characterized in that, is oppositely arranged, staggers to arrange or interval setting in described multiple function layers described in adjacent two layers between functional layer.
The super material of 11. bandpass filtering according to claim 1, is characterized in that, described dielectric layer is the dielectric layer that composite material or ceramic material are made.
The super material of 12. bandpass filtering according to claim 11, is characterized in that, described composite material is thermosets or thermoplastic.
The super material of 13. bandpass filtering according to claim 1, is characterized in that, the thickness of described conduction geometry is 1 to 50 micron.
The super material of 14. bandpass filtering according to claim 13, is characterized in that, the thickness of described conduction geometry is 10 to 30 microns.
The super material of 15. bandpass filtering according to claim 14, is characterized in that, the thickness of described conduction geometry is 16 to 20 microns.
The super material of 16. bandpass filtering according to claim 1, is characterized in that, the width of described conduction geometry is 2 to 6 millimeters.
The super material of 17. bandpass filtering according to claim 1, is characterized in that, the live width of described conduction geometry is 20 to 1000 microns.
The super material of 18. bandpass filtering according to claim 17, is characterized in that, the live width of described conduction geometry is 50 to 500 microns.
The super material of 19. bandpass filtering according to claim 18, is characterized in that, the live width of described conduction geometry is 100 to 200 microns.
The super material of 20. bandpass filtering according to claim 1, is characterized in that, the conduction geometry live width difference between different described functional layers.
The super material of 21. bandpass filtering according to claim 20, is characterized in that, the live width ratio range between the conduction geometry between different described functional layers is: 0 to 0.2.
The super material of 22. bandpass filtering according to claim 21, is characterized in that, the live width ratio range between the conduction geometry between different described functional layers is: 0.05 to 0.1.
The super material of 23. bandpass filtering according to claim 1, is characterized in that, the DIELECTRIC CONSTANT ε of described dielectric layer meets: 1≤ε≤5.
24. 1 kinds of radomes, is characterized in that, comprising: the super material of bandpass filtering in claim 1 to 23 described in any one, described radome is located on antenna.
25. 1 kinds of antenna systems, is characterized in that, comprising: the radome described in antenna and claim 24, described radome is located on antenna.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420123430.8U CN203859230U (en) | 2014-03-18 | 2014-03-18 | Bandpass filter metamaterial, antenna housing and antenna system |
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| CN201420123430.8U CN203859230U (en) | 2014-03-18 | 2014-03-18 | Bandpass filter metamaterial, antenna housing and antenna system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934705A (en) * | 2014-03-18 | 2015-09-23 | 深圳光启创新技术有限公司 | Bandpass filter metamaterial, antenna cover and antenna system |
| CN105305060A (en) * | 2015-11-30 | 2016-02-03 | 中国计量学院 | Front circular ring with internal cross center feed antenna |
-
2014
- 2014-03-18 CN CN201420123430.8U patent/CN203859230U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934705A (en) * | 2014-03-18 | 2015-09-23 | 深圳光启创新技术有限公司 | Bandpass filter metamaterial, antenna cover and antenna system |
| CN104934705B (en) * | 2014-03-18 | 2024-02-02 | 深圳光启高等理工研究院 | Bandpass filtering metamaterial, radome and antenna system |
| CN105305060A (en) * | 2015-11-30 | 2016-02-03 | 中国计量学院 | Front circular ring with internal cross center feed antenna |
| CN105305060B (en) * | 2015-11-30 | 2019-11-01 | 中国计量大学 | A kind of center driven antenna |
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