CN103682648B - A kind of electromagnetic horn - Google Patents
A kind of electromagnetic horn Download PDFInfo
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- CN103682648B CN103682648B CN201210316846.7A CN201210316846A CN103682648B CN 103682648 B CN103682648 B CN 103682648B CN 201210316846 A CN201210316846 A CN 201210316846A CN 103682648 B CN103682648 B CN 103682648B
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Abstract
The present invention relates to a kind of electromagnetic horn, including ladder horn and at least one banding Meta Materials being arranged on ladder horn inwall, the banding Meta Materials include at least one metamaterial sheet, and the metamaterial sheet includes substrate and the multiple man-made microstructures being attached on the side surface of substrate one.According to the electromagnetic horn of the present invention, banding Meta Materials are set on ladder horn inwall, so as to improve the amplitude distribution of electromagnetic horn wavefront electric field, more uniform Electric Field Distribution are obtained, so as to obtain higher gain.
Description
Technical field
The present invention relates to the communications field, more specifically to a kind of electromagnetic horn.
Background technology
Electromagnetic horn, the i.e. horn-like antenna of waveguide terminal flare up, because electromagnetic horn is simple in construction and directional diagram is easy
In control, medium directivity antenna, such as standard horn, the most common feed for being used as reflecting surface are typically used as；Electromagnetic horn
Have the advantages that simple in construction, cost is low, high gain, be widely used in engineering, but in some special dimensions, due to work
Make the limitation of the conditions such as environment, carrying equipment, often requiring that further improves gain performance, and traditional way is to add phase calibration
Reflecting surface or lens, but these structures are all curved-surface structures, are processing, are installing many inconvenience.
The content of the invention
The technical problem to be solved in the present invention is, for the defects of existing electromagnetic horn difficulty of processing is big, cost is high, to carry
For a kind of electromagnetic horn simple in construction.
The technical solution adopted for the present invention to solve the technical problems is：A kind of electromagnetic horn, including ladder horn and set
At least one banding Meta Materials on ladder horn inwall are put, the banding Meta Materials include at least one metamaterial sheet,
The metamaterial sheet includes substrate and the multiple man-made microstructures being attached on the side surface of substrate one.
Further, every single order of the ladder horn has identical length in the axial direction.
Further, the thickness of the banding Meta Materials is less than or equal to the axial length of every single order of ladder horn.
Further, the opposite sides on the ladder horn inwall is each provided with a banding Meta Materials.
Further, the opposite sides on the ladder horn inwall has been arranged in pairs multiple banding Meta Materials.
Further, the banding Meta Materials are made up of a metamaterial sheet.
Further, the metamaterial sheet is rectangle, and each metamaterial sheet is only artificial with one on width
Micro-structural, multiple man-made microstructure geomeries in same metamaterial sheet are identical.
Further, the man-made microstructure is metal micro structure, and the metal micro structure is by one or more metal wire
Composition, the metal wire are copper cash, silver wire or aluminum steel, and multiple man-made microstructures on the substrate are by etching, electroplating, boring
Quarter, photoetching, the method that electronics is carved or ion is carved obtain.
Further, multiple man-made microstructures on the substrate are in plane flakes, and it, which has, is mutually perpendicular to what is divided equally
First metal wire and the second metal wire, first metal wire is identical with the length of the second metal wire, first metal wire two
End is connected with two the first metal branch of equal length, and the first metal wire both ends are connected to two the first metal branch
On midpoint, the second metal wire both ends are connected with two the second metal branch of equal length, the second metal wire both ends
It is connected on the midpoint of two the second metal branch, the equal length of first metal branch and the second metal branch.
Further, the metal micro structure in plane flakes also includes what multiple and the first metal wire intersected vertically
First gradual change branch and multiple the second gradual change branches to intersect vertically with the second metal wire, the multiple first gradual change branch and more
Individual second gradual change branch is divided equally by the first metal wire and the second metal wire respectively, and the multiple first gradual change branch is with the second metal
Line is symmetry axis symmetry arrangement, and the first gradual change branch length close to the first metal branch is maximum, to man-made microstructure center side
It is sequentially reduced to the length of multiple first gradual change branches, the multiple second gradual change branch is using the first metal wire as symmetrical axial symmetry
Arrangement, the second gradual change branch length close to the second metal branch is maximum, to multiple second gradual changes of man-made microstructure center position
The length of branch is sequentially reduced.
According to the electromagnetic horn of the present invention, banding Meta Materials are set on ladder horn inwall, so as to improve electromagnetic horn
The amplitude distribution of wavefront electric field, more uniform Electric Field Distribution is obtained, so as to obtain higher gain.In addition need not be for example saturating
The curved surface elements such as mirror carry out adjustment phase place, simple in construction.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the structural representation of the electromagnetic horn of first embodiment of the invention；
Fig. 2 is the structural representation of electromagnetic horn its banding Meta Materials shown in Fig. 1；
Fig. 3 is the structural representation of the metal micro structure of the plane flakes of the present invention；
Fig. 4 is a kind of derived structure of the metal micro structure of the plane flakes shown in Fig. 3.
Embodiment
As shown in Figures 1 to 4, ladder horn 1 is included according to the electromagnetic horn of the present invention and is arranged on the inwall of ladder horn 1
On at least one banding Meta Materials 2, the banding Meta Materials 2 include at least one metamaterial sheet 20, the Meta Materials piece
Layer 20 includes substrate 21 and the multiple man-made microstructures 22 being attached on the side surface of substrate 21 1.The banding Meta Materials 2 can be with
Loudspeaker inwall is bonded in by glue.
In the present invention, every single order JT of the ladder horn 1 has identical length in the axial direction.
In the present invention, the thickness of the banding Meta Materials 2 is less than or equal to the axial length of every single order of ladder horn 1.
In the present invention, the opposite sides on the inwall of ladder horn 1 is each provided with a banding Meta Materials 2, Huo Zhesuo
State the opposite sides on the inwall of ladder horn 1 and be arranged in pairs multiple banding Meta Materials 2.
In the present invention, the banding Meta Materials are made up of a metamaterial sheet 20 or folded by multiple metamaterial sheets 20
Add to be formed.
In the present invention, the metamaterial sheet 20 is rectangle, and each metamaterial sheet 20 only has one on width
Man-made microstructure 22, the geomery of multiple man-made microstructures 22 in same metamaterial sheet 20 are identical.
In the present invention, the substrate 1 is by F4B composites, FR-4 composites, polytetrafluoroethylene (PTFE) or polystyrene system
Into.For example, the electrical insulating property of polytetrafluoroethylene (PTFE) is very good, therefore will not produce interference to the electric field of electromagnetic wave, and with excellent
Good chemical stability, corrosion resistance, service life length.
In the present invention, the thickness of the substrate is 0.1-2mm, and the thickness of the man-made microstructure is 0.01-0.5mm.Example
Such as, the thickness of substrate is 1mm, and the thickness of man-made microstructure is 0.018mm.
In the present invention, it is preferable that the man-made microstructure 22 is metal micro structure, and the metal micro structure is by one or more
Metal line forms, and the metal wire is copper cash, silver wire or aluminum steel, and multiple man-made microstructures on the substrate 1 pass through erosion
Quarter, plating, carve, photoetching, the method that electronics is carved or ion is carved obtain.
The banding Meta Materials of the present invention, such as can be made by the following method：
（1）In the outer surface copper membrane of substrate；
（2）Unwanted part copper film is removed by techniques such as etchings, that is, has obtained multiple man-made microstructures outside substrate
The planar arrangement of side surface, namely form a metamaterial sheet；
（3）As needed, banding Meta Materials are formed by a metamaterial sheet, or multiple metamaterial sheets is heated
Glue sticking obtains the banding Meta Materials of multilayer.The material of PUR is preferably consistent with the material of metamaterial sheet.
In the present invention, it is preferable that multiple man-made microstructures on the substrate 1 are in plane flakes shown in Fig. 3
Metal micro structure.
As shown in figure 3, the metal micro structure in plane flakes has the first metal wire J1 for being mutually perpendicular to divide equally
And second metal wire J2, the first metal wire J1 it is identical with the second metal wire J2 length, the first metal wire J1 both ends
Two the first metal branch F1 of equal length are connected with, the first metal wire J1 both ends are connected to two the first metal branch
On F1 midpoint, the second metal wire J2 both ends are connected with two the second metal branch F2 of equal length, second gold medal
Category line J2 both ends are connected on two the second metal branch F2 midpoint, the first metal branch F1 and the second metal branch F2
Equal length.
Fig. 4 is a kind of derived structure of the metal micro structure of the plane flakes shown in Fig. 3.It also includes multiple with first
The the first gradual change branch JZ1 and multiple the second gradual change branches to be intersected vertically with the second metal wire J2 that metal wire J1 intersects vertically
JZ2, the multiple first gradual change branch JZ1 and multiple second gradual change branch JZ2 are respectively by the first metal wire J1 and the second metal
Line J2 divides equally, and the multiple first gradual change branch JZ1 is using the second metal wire J2 as symmetry axis symmetry arrangement, close to the first metal point
Branch F1 the first gradual change branch length is maximum, to the multiple first gradual change branch JZ1 of man-made microstructure center position length successively
Reduce, the multiple second gradual change branch JZ2 is using the first metal wire J1 as symmetry axis symmetry arrangement, close to the second metal branch F2
The second gradual change branch length it is maximum, be sequentially reduced to the multiple second gradual change branch JZ2 of man-made microstructure center position length.
As shown in Figure 1 to Figure 2, it is the electromagnetic horn of first embodiment of the invention.In the present embodiment, the ladder horn 1
Every single order JT there is identical length in the axial direction.
In the present embodiment, the thickness of the banding Meta Materials 2 is less than the axial length of every single order of ladder horn 1.
In the present embodiment, the banding Meta Materials 2 are made up of a metamaterial sheet 20.
In the present embodiment, the opposite sides on the inwall of ladder horn 1 has been arranged in pairs 6 banding Meta Materials, and all 6
Individual banding Meta Materials have same structure, because the thickness of the banding Meta Materials 2 is less than the axle of every single order of ladder horn 1
To length, therefore banding Meta Materials 2 two neighboring in the axial direction are spaced.Preferably, on axial direction arbitrary neighborhood two
The interval of individual banding Meta Materials 2 is identical.
In the present embodiment, the metamaterial sheet 20 is rectangle, and each metamaterial sheet 20 only has one on width
Individual man-made microstructure 22, the geomery of multiple man-made microstructures 22 in same metamaterial sheet 20 are identical.
The man-made microstructure of the present embodiment is as shown in Figure 4.
By testing ladder horn, find in the case of other condition identicals, added the loudspeaker day of Meta Materials
Line far gain can increase 0.2-1db.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (7)
1. a kind of electromagnetic horn, it is characterised in that surpass including ladder horn and the multiple bandings being arranged on ladder horn inwall
Material, the inwall of the ladder horn form multistage ladder, and the opposite sides on the ladder horn inwall has been arranged in pairs
Multiple banding Meta Materials, the banding Meta Materials include multiple metamaterial sheets, and the metamaterial sheet includes substrate and attachment
Multiple man-made microstructures on the side surface of substrate one, the metamaterial sheet are rectangle, and each metamaterial sheet is in width
Going up only has a man-made microstructure, and multiple man-made microstructure geomeries in same metamaterial sheet are identical.
2. electromagnetic horn according to claim 1, it is characterised in that every single order of the ladder horn has in the axial direction
Identical length.
3. electromagnetic horn according to claim 2, it is characterised in that the thickness of the banding Meta Materials is less than or equal to ladder
The axial length of every single order of loudspeaker.
4. electromagnetic horn according to claim 1, it is characterised in that the banding Meta Materials are by a metamaterial sheet structure
Into.
5. electromagnetic horn according to claim 1, it is characterised in that the man-made microstructure is metal micro structure, described
Metal micro structure is made up of one or more metal wire, and the metal wire is copper cash, silver wire or aluminum steel, more on the substrate
Individual man-made microstructure is by etching, electroplating, carve, photoetching, the method that electronics is carved or ion is carved obtain.
6. electromagnetic horn according to claim 5, it is characterised in that multiple man-made microstructures on the substrate are in plane
Flakes, it has the first metal wire and the second metal wire for being mutually perpendicular to divide equally, first metal wire and the second metal wire
Length it is identical, the first metal wire both ends are connected with two the first metal branch of equal length, first metal wire
Both ends are connected on the midpoint of two the first metal branch, and the second metal wire both ends are connected with two second of equal length
Metal branch, the second metal wire both ends are connected on the midpoint of two the second metal branch, first metal branch with
The equal length of second metal branch.
7. electromagnetic horn according to claim 6, it is characterised in that the metal micro structure in plane flakes also wraps
Include multiple the first gradual change branches to be intersected vertically with the first metal wire and multiple the second gradual changes to be intersected vertically with the second metal wire
Branch, the multiple first gradual change branch and multiple second gradual change branches are divided equally by the first metal wire and the second metal wire respectively,
The multiple first gradual change branch is using the second metal wire as symmetry axis symmetry arrangement, close to the first gradual change point of the first metal branch
Zhi Changdu is maximum, is sequentially reduced to the length of the multiple first gradual change branches of man-made microstructure center position, the multiple second gradually
Becoming branch using the first metal wire as symmetry axis symmetry arrangement, the second gradual change branch length close to the second metal branch is maximum, to
The length of the multiple second gradual change branches of man-made microstructure center position is sequentially reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210316846.7A CN103682648B (en) | 2012-08-31 | 2012-08-31 | A kind of electromagnetic horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210316846.7A CN103682648B (en) | 2012-08-31 | 2012-08-31 | A kind of electromagnetic horn |
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| Publication Number | Publication Date |
|---|---|
| CN103682648A CN103682648A (en) | 2014-03-26 |
| CN103682648B true CN103682648B (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210316846.7A Active CN103682648B (en) | 2012-08-31 | 2012-08-31 | A kind of electromagnetic horn |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212307A (en) * | 2019-05-14 | 2019-09-06 | 南京航空航天大学 | A kind of snowflake shape FSS wave absorbing device that wide-angle is unrelated with polarizing |
| CN115173069B (en) * | 2022-08-10 | 2024-05-07 | 北京星英联微波科技有限责任公司 | High gain filtering horn antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202379A (en) * | 2007-12-17 | 2008-06-18 | 中国科学院光电技术研究所 | Horn antenna with electromagnetic band gap structure |
| CN202150531U (en) * | 2011-07-29 | 2012-02-22 | 深圳光启高等理工研究院 | Resonant cavity |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6879298B1 (en) * | 2003-10-15 | 2005-04-12 | Harris Corporation | Multi-band horn antenna using corrugations having frequency selective surfaces |
| US8072386B2 (en) * | 2008-02-25 | 2011-12-06 | Lockheed Martin Corporation | Horn antenna, waveguide or apparatus including low index dielectric material |
| WO2012097169A1 (en) * | 2011-01-12 | 2012-07-19 | Lockheed Martin Corporation | Printed circuit board based feed horn |
-
2012
- 2012-08-31 CN CN201210316846.7A patent/CN103682648B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202379A (en) * | 2007-12-17 | 2008-06-18 | 中国科学院光电技术研究所 | Horn antenna with electromagnetic band gap structure |
| CN202150531U (en) * | 2011-07-29 | 2012-02-22 | 深圳光启高等理工研究院 | Resonant cavity |
Non-Patent Citations (1)
| Title |
|---|
| Broadband Metamaterial Soft-Surface Horn Antennas;Clinton P. Scarborough等;《Antennas and Propagation Society International Symposium (APSURSI)，2010 IEEE》;20100902;第1-4页，图1-5 * |
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| CN103682648A (en) | 2014-03-26 |
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Effective date of registration: 20210407 Address after: 2 / F, software building, No.9, Gaoxin Zhongyi Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 18B, building a, CIC international business center, 1061 Xiangmei Road, Futian District, Shenzhen, Guangdong 518034 Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |
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