CN103682648A - Horn antenna - Google Patents
Horn antenna Download PDFInfo
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- CN103682648A CN103682648A CN201210316846.7A CN201210316846A CN103682648A CN 103682648 A CN103682648 A CN 103682648A CN 201210316846 A CN201210316846 A CN 201210316846A CN 103682648 A CN103682648 A CN 103682648A
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Abstract
The invention relates to a horn antenna which comprises a ladder horn and at least one banded metamaterial, wherein the banded metamaterial is arranged on the inner wall of the ladder horn and comprises at least one metamaterial lamella, and the metamaterial lamella comprises a substrate and a plurality of artificial microstructures attached to the surface on one side of the substrate. According to the horn antenna, the banded metamaterial is arranged on the inner wall of the ladder horn, therefore the amplitude distribution of a wavefront electric field of the horn antenna is improved, more uniform electric field distribution is obtained, and higher gain is obtained.
Description
Technical field
The present invention relates to the communications field, more particularly, relate to a kind of horn antenna.
Background technology
Horn antenna, the trumpet-shaped antenna of waveguide terminal flare up, because horn antenna is simple in structure and directional diagram is easy to control, is typically used as medium directivity antenna, and as standard horn, modal is the feed that is used as reflecting surface; That horn antenna has is simple in structure, cost is low, gain advantages of higher, in engineering, be widely used, but at some special dimension, due to condition restriction such as operational environment, carrying equipments, often require further to improve gain performance, traditional way is reflecting surface or the lens that add phase calibration, but these structures are all curved-surface structures, is processing, installing a lot of inconvenience.
Summary of the invention
The technical problem to be solved in the present invention is that the defect large for existing horn antenna difficulty of processing, cost is high, provides a kind of horn antenna simple in structure.
The technical solution adopted for the present invention to solve the technical problems is: a kind of horn antenna, comprise ladder loudspeaker and be arranged at least one the banded super material on ladder loudspeaker inwall, the super material of described band shape comprises at least one super sheet of material, and described super sheet of material comprises substrate and is attached to a plurality of artificial micro-structural on substrate one side surface.
Further, every single order of described ladder loudspeaker has identical length in the axial direction.
Further, the thickness of the super material of described band shape is less than or equal to the axial length of every single order of ladder loudspeaker.
Further, the relative both sides on described ladder loudspeaker inwall are respectively provided with a super material of band shape.
Further, the relative both sides on described ladder loudspeaker inwall are provided with the super material of a plurality of band shapes in pairs.
Further, the super material of described band shape consists of a super sheet of material.
Further, described super sheet of material is rectangle, and each super sheet of material only has an artificial micro-structural on width, and a plurality of artificial micro-structural geomery in same super sheet of material is identical.
Further, described artificial micro-structural is metal micro structure, described metal micro structure is comprised of one or more metal wire, described metal wire is copper cash, silver-colored line or aluminum steel, and a plurality of artificial micro-structural on described substrate obtains by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
Further, a plurality of artificial micro-structural on described substrate is plane flakes, it has the first metal wire and the second metal wire of mutually vertically dividing equally, described the first metal wire is identical with the length of the second metal wire, described the first metal wire two ends are connected with two the first metal branches of equal length, described the first metal wire two ends are connected on the mid point of two the first metal branches, described the second metal wire two ends are connected with two the second metal branches of equal length, described the second metal wire two ends are connected on the mid point of two the second metal branches, described the first metal branch and the second metal branch equal in length.
Further, the described alabastrine metal micro structure of plane that is also comprises a plurality of the first gradual change branch and the second gradual change branches a plurality of and that the second metal wire intersects vertically that intersect vertically with the first metal wire, described a plurality of the first gradual change branch and a plurality of the second gradual change branch are divided equally by the first metal wire and the second metal wire respectively, the second metal wire be take as symmetry axis symmetry arrangement in described a plurality of the first gradual change branch, the first gradual change branch length near the first metal branch is maximum, length to a plurality of the first gradual change branches of artificial micro-structural center position reduces successively, the first metal wire be take as symmetry axis symmetry arrangement in described a plurality of the second gradual change branch, the second gradual change branch length near the second metal branch is maximum, length to a plurality of the second gradual change branches of artificial micro-structural center position reduces successively.
According to horn antenna of the present invention, banded super material is set on ladder loudspeaker inwall, thereby improves the amplitude distribution of horn antenna wavefront electric field, obtain Electric Field Distribution more uniformly, thereby obtain higher gain.Need to not adjust phase place such as curved surface elements such as lens in addition, simple in structure.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the horn antenna of first embodiment of the invention;
Fig. 2 is the structural representation of its banded super material of the horn antenna shown in Fig. 1;
Fig. 3 is the structural representation of the alabastrine metal micro structure of plane of the present invention;
Fig. 4 is a kind of derived structure of the alabastrine metal micro structure of plane shown in Fig. 3.
Embodiment
As shown in Figures 1 to 4, horn antenna according to the present invention comprises ladder loudspeaker 1 and is arranged at least one the banded super material 2 on ladder loudspeaker 1 inwall, the super material 2 of described band shape comprises at least one super sheet of material 20, and described super sheet of material 20 comprises substrate 21 and is attached to a plurality of artificial micro-structural 22 on substrate 21 1 side surfaces.The super material 2 of described band shape can be bonded in loudspeaker inwall by glue.
In the present invention, every single order JT of described ladder loudspeaker 1 has identical length in the axial direction.
In the present invention, the thickness of the super material 2 of described band shape is less than or equal to the axial length of every single order of ladder loudspeaker 1.
In the present invention, the relative both sides on described ladder loudspeaker 1 inwall are respectively provided with a super material 2 of band shape, or the relative both sides on described ladder loudspeaker 1 inwall are provided with the super material 2 of a plurality of band shapes in pairs.
In the present invention, the super material of described band shape consists of a super sheet of material 20 or is formed by a plurality of super sheet of material 20 stacks.
In the present invention, described super sheet of material 20 is rectangle, and each super sheet of material 20 only has an artificial micro-structural 22 on width, and a plurality of artificial micro-structural 22 geomeries in same super sheet of material 20 are identical.
In the present invention, described substrate 1 is made by F4B composite material, FR-4 composite material, polytetrafluoroethylene or polystyrene.For example, the electrical insulating property of polytetrafluoroethylene is very good, therefore can electromagnetic electric field not produced and be disturbed, and have good chemical stability, corrosion resistance, long service life.
In the present invention, the thickness of described substrate is 0.1-2mm, and the thickness of described artificial micro-structural is 0.01-0.5mm.For example, the thickness of substrate is 1mm, and the thickness of artificial micro-structural is 0.018mm.
In the present invention, preferably, described artificial micro-structural 22 is metal micro structure, described metal micro structure is comprised of one or more metal wire, described metal wire is copper cash, silver-colored line or aluminum steel, and a plurality of artificial micro-structural on described substrate 1 obtains by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
The super material of band shape of the present invention, for example, can make by the following method:
(1) at the outer surface copper membrane of substrate;
(2) by techniques such as etchings, remove unwanted part copper film, obtained a plurality of artificial micro-structurals and arranged in the plane of substrate outer surface, also formed a super sheet of material;
(3) as required, by a super sheet of material, form banded super material, or by the bonding super material of band shape that obtains multilayer of PUR for a plurality of super sheet of material.The material of PUR is preferably consistent with the material of super sheet of material.
In the present invention, preferably, a plurality of artificial micro-structural on described substrate 1 is to be the alabastrine metal micro structure of plane shown in Fig. 3.
As shown in Figure 3, the described alabastrine metal micro structure of plane that is has the first metal wire J1 and the second metal wire J2 mutually vertically dividing equally, described the first metal wire J1 is identical with the length of the second metal wire J2, described the first metal wire J1 two ends are connected with two the first F1 of metal branch of equal length, described the first metal wire J1 two ends are connected on the mid point of two the first F1 of metal branch, described the second metal wire J2 two ends are connected with two the second F2 of metal branch of equal length, described the second metal wire J2 two ends are connected on the mid point of two the second F2 of metal branch, described the first F1 of metal branch and the second F2's of metal branch is equal in length.
Fig. 4 is a kind of derived structure of the alabastrine metal micro structure of plane shown in Fig. 3.It also comprises a plurality of the first JZ1 of gradual change branch and the second JZ2 of gradual change branch a plurality of and that the second metal wire J2 intersects vertically that intersect vertically with the first metal wire J1, described a plurality of the first JZ1 of gradual change branch and a plurality of the second JZ2 of gradual change branch are divided equally by the first metal wire J1 and the second metal wire J2 respectively, described a plurality of the first JZ1 of gradual change branch be take the second metal wire J2 as symmetry axis symmetry arrangement, the first gradual change branch length near the first F1 of metal branch is maximum, length to a plurality of the first JZ1 of gradual change branch of artificial micro-structural center position reduces successively, described a plurality of the second JZ2 of gradual change branch be take the first metal wire J1 as symmetry axis symmetry arrangement, the second gradual change branch length near the second F2 of metal branch is maximum, length to a plurality of the second JZ2 of gradual change branch of artificial micro-structural center position reduces successively.
As shown in Figure 1 to Figure 2, be the horn antenna of first embodiment of the invention.In the present embodiment, every single order JT of described ladder loudspeaker 1 has identical length in the axial direction.
In the present embodiment, the thickness of the super material 2 of described band shape is less than the axial length of every single order of ladder loudspeaker 1.
In the present embodiment, the super material 2 of described band shape consists of a super sheet of material 20.
In the present embodiment, relative both sides on described ladder loudspeaker 1 inwall are provided with 6 super materials of band shape in pairs, all 6 super materials of band shape have same structure, because the thickness of the super material 2 of described band shape is less than the axial length of every single order of ladder loudspeaker 1, therefore the super material 2 of adjacent in the axial direction two band shapes is spaced.Preferably, axially go up the interval of two super materials 2 of band shape of arbitrary neighborhood identical.
In the present embodiment, described super sheet of material 20 is rectangle, and each super sheet of material 20 only has an artificial micro-structural 22 on width, and a plurality of artificial micro-structural 22 geomeries in same super sheet of material 20 are identical.
The artificial micro-structural of the present embodiment as shown in Figure 4.
By ladder loudspeaker are tested, find that the horn antenna far gain that has added super material can increase 0.2-1db in the situation that other condition is identical.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection of the present invention.
Claims (10)
1. a horn antenna, it is characterized in that, comprise ladder loudspeaker and be arranged at least one the banded super material on ladder loudspeaker inwall, the super material of described band shape comprises at least one super sheet of material, and described super sheet of material comprises substrate and is attached to a plurality of artificial micro-structural on substrate one side surface.
2. horn antenna according to claim 1, is characterized in that, every single order of described ladder loudspeaker has identical length in the axial direction.
3. horn antenna according to claim 2, is characterized in that, the thickness of the super material of described band shape is less than or equal to the axial length of every single order of ladder loudspeaker.
4. horn antenna according to claim 3, is characterized in that, the relative both sides on described ladder loudspeaker inwall are respectively provided with a super material of band shape.
5. horn antenna according to claim 3, is characterized in that, the relative both sides on described ladder loudspeaker inwall are provided with the super material of a plurality of band shapes in pairs.
6. according to the horn antenna described in claim 4 or 5, it is characterized in that, the super material of described band shape consists of a super sheet of material.
7. according to the horn antenna described in claim 4 or 5, it is characterized in that, described super sheet of material is rectangle, and each super sheet of material only has an artificial micro-structural on width, and a plurality of artificial micro-structural geomery in same super sheet of material is identical.
8. horn antenna according to claim 1, it is characterized in that, described artificial micro-structural is metal micro structure, described metal micro structure is comprised of one or more metal wire, described metal wire is copper cash, silver-colored line or aluminum steel, and a plurality of artificial micro-structural on described substrate obtains by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
9. horn antenna according to claim 8, it is characterized in that, a plurality of artificial micro-structural on described substrate is plane flakes, it has the first metal wire and the second metal wire of mutually vertically dividing equally, described the first metal wire is identical with the length of the second metal wire, described the first metal wire two ends are connected with two the first metal branches of equal length, described the first metal wire two ends are connected on the mid point of two the first metal branches, described the second metal wire two ends are connected with two the second metal branches of equal length, described the second metal wire two ends are connected on the mid point of two the second metal branches, described the first metal branch and the second metal branch equal in length.
10. horn antenna according to claim 9, it is characterized in that, the described alabastrine metal micro structure of plane that is also comprises a plurality of the first gradual change branch and the second gradual change branches a plurality of and that the second metal wire intersects vertically that intersect vertically with the first metal wire, described a plurality of the first gradual change branch and a plurality of the second gradual change branch are divided equally by the first metal wire and the second metal wire respectively, the second metal wire be take as symmetry axis symmetry arrangement in described a plurality of the first gradual change branch, the first gradual change branch length near the first metal branch is maximum, length to a plurality of the first gradual change branches of artificial micro-structural center position reduces successively, the first metal wire be take as symmetry axis symmetry arrangement in described a plurality of the second gradual change branch, the second gradual change branch length near the second metal branch is maximum, length to a plurality of the second gradual change branches of artificial micro-structural center position reduces successively.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103682648A true CN103682648A (en) | 2014-03-26 |
| CN103682648B 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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| CN (1) | CN103682648B (en) |
Cited By (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 |
| CN115173069A (en) * | 2022-08-10 | 2022-10-11 | 北京星英联微波科技有限责任公司 | High-gain filtering horn antenna |
Citations (5)
| 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 |
| 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 |
| US20090284429A1 (en) * | 2008-02-25 | 2009-11-19 | Lockheed Martin Corporation | Horn antenna, waveguide or apparatus including low index dielectric material |
| CN202150531U (en) * | 2011-07-29 | 2012-02-22 | 深圳光启高等理工研究院 | Resonant cavity |
| US20120176287A1 (en) * | 2011-01-12 | 2012-07-12 | Lockheed Martin Corporation | Printed circuit board based feed horn |
-
2012
- 2012-08-31 CN CN201210316846.7A patent/CN103682648B/en active Active
Patent Citations (5)
| 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 |
| 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 |
| US20090284429A1 (en) * | 2008-02-25 | 2009-11-19 | Lockheed Martin Corporation | Horn antenna, waveguide or apparatus including low index dielectric material |
| US20120176287A1 (en) * | 2011-01-12 | 2012-07-12 | Lockheed Martin Corporation | Printed circuit board based feed horn |
| 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 |
|---|
| CLINTON P. SCARBOROUGH等: "Broadband Metamaterial Soft-Surface Horn Antennas", 《ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI)，2010 IEEE》 * |
Cited By (3)
| 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 |
| CN115173069A (en) * | 2022-08-10 | 2022-10-11 | 北京星英联微波科技有限责任公司 | High-gain filtering horn antenna |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103682648B (en) | 2018-02-23 |
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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. |