CN108470983B - Horn antenna with inserting sheet - Google Patents
Horn antenna with inserting sheet Download PDFInfo
- Publication number
- CN108470983B CN108470983B CN201810267436.5A CN201810267436A CN108470983B CN 108470983 B CN108470983 B CN 108470983B CN 201810267436 A CN201810267436 A CN 201810267436A CN 108470983 B CN108470983 B CN 108470983B
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- CN
- China
- Prior art keywords
- horn
- horn antenna
- waveguide
- transmission section
- insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 230000005855 radiation Effects 0.000 claims abstract description 20
- 230000004323 axial length Effects 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000011218 segmentation Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention discloses a horn antenna with an insert, which comprises a base, wherein the base is connected with the rear end of a feed waveguide, the front end of the feed waveguide is connected with the rear end of a waveguide transmission section, and the front end of the waveguide transmission section is connected with the horn antenna; an insert is embedded in the horn antenna, part of the insert is embedded in the waveguide transmission section, and the rest part of the insert is positioned in the horn radiation cavity, so that the electromagnetic wave transmitted by the waveguide transmission section can be divided into two parts in the horn radiation cavity. Compared with the common horn antenna, the gain of the E-plane horn antenna is improved by introducing the insert, the directivity of the H plane is improved, the E-plane horn antenna has the characteristics of high gain, good directivity and the like, and the E-plane horn antenna is simple in structure and easy to process.
Description
Technical Field
The invention belongs to the technical field of microwave band antenna equipment, and particularly relates to a horn antenna with an insert.
Background
The horn antenna is a microwave antenna with wide application, and has the advantages of simple structure, wide frequency band, large power capacity, and convenient adjustment and use, and the pyramid horn is used as one of the horn antennas, has the characteristics of high gain, wide frequency band, low side lobe and the like, and has important application value in the fields of electronic countermeasure, radar and the like.
However, the existing horn antenna mainly has two problems, namely, the gain is low; second, the directivity is general, and the design of the horn in the prior art cannot solve the two problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the present invention provides a horn antenna with an insert, which can improve the gain and improve the directivity of the H-plane.
The invention is realized by the following technical scheme:
the horn antenna with the inserting sheet comprises a base, wherein the base is connected with the rear end of a feed waveguide, the front end of the feed waveguide is connected with the rear end of a waveguide transmission section, and the front end of the waveguide transmission section is connected with the horn antenna; an insert is embedded in the horn antenna, part of the insert is embedded in the waveguide transmission section, and the rest part of the insert is positioned in the horn radiation cavity, so that the electromagnetic wave transmitted by the waveguide transmission section can be divided into two parts in the horn radiation cavity. .
Preferably, the radiation cavity of the horn is internally provided with a slot for inserting the insert.
Preferably, the thickness of the insert sheet is 0.5 mm.
Preferably, the caliber size of the horn radiation cavity is different from that of the waveguide transmission section, the caliber size is increased in the direction of the E surface, and the direction of the H surface is kept consistent.
Preferably, the caliber size of the radiation cavity of the horn is 48.26mm × 42.44mm, and the caliber size of the transmission section of the waveguide is 48.26mm × 10.16 mm.
Preferably, the axial length of the whole horn antenna is 73mm, the axial length of the waveguide transmission section is 29.50mm, and the axial length of the insert is 43.50 mm.
Preferably, the insert is of a metal structure.
Preferably, the insert is made of copper.
Four corners of the base are respectively provided with a through hole, and the diameter of each through hole is 4.17 mm.
Compared with the prior art, the invention has the following beneficial technical effects:
the horn antenna with the insert disclosed by the invention utilizes the idea of mouth surface field division to introduce the insert to divide a wave into two waves, and a large mouth surface is changed into two parallel small mouth surfaces. And connecting the upper E horn by using an optimized one-to-two waveguide structure, and enlarging the opening surface to obtain the horn antenna with double outlets. Compared with the common horn antenna, the gain is improved, the directivity of the H surface is improved, the E surface horn antenna has the characteristics of high gain, good directivity and the like, and the E surface horn antenna is simple in structure and easy to process.
Drawings
Fig. 1 is an overall structural view of an example of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a cross-sectional view at AA of fig. 2.
Fig. 4 is a comparison of the gain of this example with a common pyramid horn of the same size.
FIG. 5 shows simulation and test patterns for plane E and plane H of the present example.
In the figure, 1 is a base; 2 is a feed waveguide; 3 is a waveguide transmission section; 4 is a horn radiation cavity; 5 is a slot; 6 is the sectional shape of the outer part of the horn; and 7 is the sectional shape of the insert.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
As shown in fig. 1, the horn antenna with the patch disclosed by the present invention comprises: the feed waveguide 2, the waveguide transmission section 3, the horn radiation cavity 4, an insert and the base 1. The slot 5 (i.e. the gap in the figure) reserved in the horn radiation cavity 4 is a reserved position for the insert, and the insert can be added.
As shown in FIG. 2, the base is made of a flange plate, and is made of FBP100(GBT11449.2-1989), and can be integrally machined during machining or can be separately machined from the antenna horn body and welded. The flange plate is provided with 4 through holes, and the diameter of each through hole is 4.17 mm. The base 1 is connected with the rear end of the feed waveguide 2, and the rear end of the feed waveguide 2 is fixed at the rear end of the wave band transmission section 3.
In this embodiment, the transmission main mode is a TE10 mode, the rear end of the feed waveguide 2 is a national standard waveguide BJ100, and the aperture size is 22.86mm × 10.16 mm. The aperture size of the waveguide transmission section 3 is 48.26mm × 10.16 mm. In the waveguide section, a one-in-two waveguide structure is designed by using the idea of mouth-face segmentation, the solution is carried out by using a separation variable method according to a Helmholtz equation, and the optimized one-in-two waveguide structure is obtained after optimization.
The horn radiation cavity 4 is connected with the waveguide transmission section 3, and the horn antenna with double outlets can be obtained by enlarging the opening surface. The aperture size is different from that of the waveguide transmission section 3, the aperture size is increased in the E plane direction, the aperture size is kept consistent in the H plane direction, and the aperture size is 48.26mm multiplied by 42.44 mm. The inserted sheet is connected with loudspeaker radiation cavity 4 and waveguide transmission section 3, and the thickness of inserted sheet is 0.5 mm.
As shown in FIG. 3, 6 is the sectional shape of the horn exterior, and 7 is the sectional shape of the insert. The insert part is embedded into the waveguide section, the rest part is arranged in the horn radiation cavity, electromagnetic waves transmitted by the waveguide section are divided into two parts in the horn radiation cavity, the axial length of the waveguide section is 29.50mm, the axial length of the insert is 43.50mm, and the axial length of the whole horn is 73 mm.
The antenna horn is made of copper, and the surface roughness of the inner cavity is not more than 1.6 on the whole.
Smooth transition is carried out at each joint on the surface of the inner cavity; silver plating treatment, wherein the thickness of the silver plating is 1 mu m.
The advantages of the present invention can be further illustrated by the following simulations:
after modeling and simulation processing of the antenna by using HFSS, the simulation and test patterns of gain pairs such as plane E and plane H are shown in fig. 4 and fig. 5.
As shown in fig. 4, compared with the common pyramid horn with the same size, the gain of the present embodiment can reach 13.5dB, which is improved by nearly 1dB, and meanwhile, the main lobe becomes narrower, the energy is more concentrated, the radiation efficiency is higher, and the directivity is obviously improved.
As shown in fig. 5, the H-plane main lobe of the present embodiment is narrowed, and the H-plane directivity is improved. The test results are also closer to the simulation results, within expected allowable error.
Claims (6)
1. The horn antenna with the inserting sheet is characterized by comprising a base (1), wherein the base (1) is connected with the rear end of a feed waveguide (2), the front end of the feed waveguide (2) is connected with the rear end of a waveguide transmission section (3), and the front end of the waveguide transmission section (3) is connected with the horn antenna; an insert is embedded in the horn antenna, part of the insert is embedded in the waveguide transmission section (3), the rest part of the insert is positioned in the horn radiation cavity (4), and electromagnetic waves transmitted by the waveguide transmission section (3) can be divided into two parts in the horn radiation cavity (4); designing a waveguide structure divided into two parts by using the idea of mouth-face segmentation at the waveguide section; the caliber size of the horn radiation cavity (4) is different from that of the waveguide transmission section (3), the diameter is increased in the direction of the E surface, and the direction of the H surface is kept consistent; the caliber size of the horn radiation cavity (4) is 48.26mm multiplied by 42.44mm, and the caliber size of the waveguide transmission section (3) is 48.26mm multiplied by 10.16 mm; the whole axial length of the horn antenna is 73mm, the axial length of the waveguide transmission section (3) is 29.50mm, and the axial length of the inserting piece is 43.50 mm.
2. The horn antenna with the patch according to claim 1, wherein the horn radiation cavity (4) is provided with a slot (5) for inserting the patch.
3. The horn antenna with patch according to claim 1 or 2, wherein the thickness of the patch is 0.5 mm.
4. The horn antenna with blades of claim 1, wherein the blades are of metal construction.
5. The horn antenna with blades of claim 4, wherein the blades are made of copper.
6. The horn antenna with the insert according to claim 1, wherein the four corners of the base (1) are respectively provided with a through hole, and the diameter of the through hole is 4.17 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267436.5A CN108470983B (en) | 2018-03-28 | 2018-03-28 | Horn antenna with inserting sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267436.5A CN108470983B (en) | 2018-03-28 | 2018-03-28 | Horn antenna with inserting sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108470983A CN108470983A (en) | 2018-08-31 |
| CN108470983B true CN108470983B (en) | 2020-10-27 |
Family
ID=63262154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810267436.5A Expired - Fee Related CN108470983B (en) | 2018-03-28 | 2018-03-28 | Horn antenna with inserting sheet |
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| Country | Link |
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| CN (1) | CN108470983B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006324916A (en) * | 2005-05-18 | 2006-11-30 | Japan Radio Co Ltd | Antenna assembly and its dielectric member |
| CN101183747A (en) * | 2007-11-13 | 2008-05-21 | 华南理工大学 | Power dividing horn antenna for space power synthesis and array thereof |
| CN102694264A (en) * | 2012-05-31 | 2012-09-26 | 南京冠君科技有限公司 | Feed source linear polarization loudspeaker with broad band ranging from 1GHz to 4GHz |
| CN105337043A (en) * | 2015-10-13 | 2016-02-17 | 中国电子科技集团公司第五十四研究所 | Thin-wall abnormal copper horn antenna and processing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052709A (en) * | 2016-12-02 | 2017-08-18 | 西安电子工程研究所 | A kind of method of overall waveguide die cavity subdivision processing |
-
2018
- 2018-03-28 CN CN201810267436.5A patent/CN108470983B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006324916A (en) * | 2005-05-18 | 2006-11-30 | Japan Radio Co Ltd | Antenna assembly and its dielectric member |
| CN101183747A (en) * | 2007-11-13 | 2008-05-21 | 华南理工大学 | Power dividing horn antenna for space power synthesis and array thereof |
| CN102694264A (en) * | 2012-05-31 | 2012-09-26 | 南京冠君科技有限公司 | Feed source linear polarization loudspeaker with broad band ranging from 1GHz to 4GHz |
| CN105337043A (en) * | 2015-10-13 | 2016-02-17 | 中国电子科技集团公司第五十四研究所 | Thin-wall abnormal copper horn antenna and processing method thereof |
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| Publication number | Publication date |
|---|---|
| CN108470983A (en) | 2018-08-31 |
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Granted publication date: 20201027 |