CN111430923A - Double-ridge conical horn antenna structure and method for manufacturing and installing upper ridge and lower ridge of double-ridge conical horn antenna structure - Google Patents

Double-ridge conical horn antenna structure and method for manufacturing and installing upper ridge and lower ridge of double-ridge conical horn antenna structure Download PDF

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Publication number
CN111430923A
CN111430923A CN202010299876.6A CN202010299876A CN111430923A CN 111430923 A CN111430923 A CN 111430923A CN 202010299876 A CN202010299876 A CN 202010299876A CN 111430923 A CN111430923 A CN 111430923A
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ridge
horn
double
face
horn antenna
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CN111430923B (en
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张登材
张义萍
侯伶利
黄福清
刘颖
古智祥
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Southwest China Research Institute Electronic Equipment
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Southwest China Research Institute Electronic Equipment
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02Waveguide horns
    • H01Q13/04Biconical horns
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02Waveguide horns
    • H01Q13/0275Ridged horns
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02Waveguide horns
    • H01Q13/0283Apparatus or processes specially provided for manufacturing horns

Abstract

The invention discloses a double-ridge conical horn antenna structure and a method for manufacturing and installing upper and lower ridges thereof, relating to the technical field of antenna structures and processes, and comprising a horn body, a feed seat and ridges assembled in the horn body; the horn body is of an integrated structure and comprises a horn section, a waveguide section, a mounting flange and a rear cover plate; the ridge comprises an upper ridge and a lower ridge, the defects of the existing method are overcome by providing an integrated conical horn assembly structure and a combined manufacturing method of two key parts, namely the upper ridge and the lower ridge, and the double-ridge conical horn antenna with high precision, high consistency and high performance is obtained.

Description

Double-ridge conical horn antenna structure and method for manufacturing and installing upper ridge and lower ridge of double-ridge conical horn antenna structure
Technical Field
The invention relates to the technical field of antenna structures and processes, in particular to a double-ridge conical horn antenna structure and a method for manufacturing and installing upper and lower ridges of the double-ridge conical horn antenna structure.
Background
The double-ridged conical horn antenna has the advantages of wide working frequency band, large power capacity and good radiation characteristic, the conical shape saves space, the space between units is easy to control when a feed array of the reflector antenna is formed, and grating lobes are inhibited from being generated, so that the double-ridged conical horn antenna is more and more widely applied to the fields of communication, radar, electronic war and the like.
In the existing literature, many researches are made on the electromagnetic design of the double-ridged conical horn antenna, but the introduction of the structural composition is a simple schematic diagram, and the antenna lacks detailed structural decomposition and a processing and manufacturing method of main parts; the research literature on the detailed design of the double-ridged conical horn antenna structure is very rare. As is well known, the antenna is a typical mechatronic product, and each component is closely related to the electromagnetic performance of the antenna, and the selection of the overall structural form and the manufacturing method not only affects the electromagnetic performance and the mechanical strength of the antenna, but also directly affects the manufacturing period and the cost of the antenna. For the special antenna of the double-ridge conical horn, if the structural design and the component decomposition are not in place, the ridge arc surface of the antenna after the assembly is not well attached to the arc surface of the inner cavity of the horn, gaps appear, or the sizes of the upper ridge and the lower ridge are inconsistent and the difference is too large, the performance of the antenna is reduced, such as the standing wave is enlarged, the gain is reduced, the directional diagram is distorted, and the like.
The common structural forms of the double-ridge conical horn antenna comprise 4 types of block welding, carbon fiber composite material integral forming, integral casting and part assembling.
The block welding structure mode is that a horn body, a mounting flange, a waveguide section, an upper ridge, a lower ridge and a rear cover plate part are assembled and welded into a whole (see the literature: manufacturing process of the pyramid horn antenna, thank you and so on, electronic process technology 2007,28 (3): 169-170). The deformation caused by high-temperature welding can cause the size and the shape of the antenna to change, so that the electromagnetic performance of the antenna is reduced, and the use of the system is further influenced. In addition, the aluminum alloy material suitable for welding is generally a medium-low strength aluminum material, the mechanical strength of the antenna welded by the material is low, the application range of the antenna is limited, and the antenna is difficult to adapt to severe environments in the aerospace field and meet the high reliability requirements in the fields.
The structural form of the carbon fiber composite material integral forming is that high-modulus carbon fibers and modified epoxy resin are layered on a mould, a horn body, a waveguide section, an upper ridge, a lower ridge, a mounting flange plate and the like are pasted together, and finally a hot pressing tank is used for curing and forming (see the literature: carbon fiber horn antenna manufacturing process research, waves, electronic mechanical engineering, 2018,34 (4): 47-51). The antenna with the structure is low in size precision, poor in surface roughness, high in mold cost, long in period and high in carbon fiber price, and is suitable for the horn antenna in the aerospace field with simple inner cavity shape and low precision requirement.
The structural form of the integral casting is that parts such as a horn section, a mounting flange, a waveguide section, an upper ridge, a lower ridge, a rear cover plate and the like are cast and molded together by using special casting technologies such as gypsum pattern investment and the like or electroforming copper technologies (see the document: Beijing aerospace university. millimeter wave rectangular-circular transition integrated corrugated horn antenna and a processing method: 200910093482.9[ P ] 2010-03-03). The mould adopting the casting technology has high cost, low dimensional precision of the antenna and poor surface roughness of the inner cavity, and is suitable for mass production of the horn antenna with simple shape of the inner cavity and low precision requirement. In addition, since the horn antenna using the electroformed copper is made of copper, it is heavy and has a long production cycle.
The structural form of the assembly of the parts is that the horn section, the mounting flange, the waveguide section, the upper ridge, the lower ridge, the rear cover plate and other parts are separately processed and then fastened and assembled and molded by screws (see the document: Jiangsu Kenki science and technology Co., Ltd. the dual-frequency circular waveguide four-ridge horn antenna: 201810783981.X [ P ]. 2018-12-11). Each part of the antenna is formed by machining independently, and the antenna is high in size precision, good in surface roughness and good in electromagnetic performance of products. However, the structural form has the disadvantages of more decomposed parts, more assembly links, larger accumulated error, lower production efficiency and influence on the further improvement of the electromagnetic performance of the antenna. In addition, in the horn antenna with the structure, gaps are easily formed between the ridges and the waveguide cavity and between the ridges and the inner wall of the horn section, and the gain of the antenna is seriously reduced if the gaps are not controlled well.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the existing method are overcome, and a combined manufacturing method of an integrated conical horn assembly structure and two key parts, namely an upper ridge and a lower ridge, is provided, so that the double-ridge conical horn antenna with high precision, high consistency and high performance is obtained.
The invention provides a double-ridge conical horn antenna structure which comprises a horn body, a feed seat and a ridge assembled in the horn body;
the horn body is of an integrated structure and comprises a horn section, a waveguide section, a mounting flange and a rear cover plate;
the ridges include an upper ridge and a lower ridge.
Furthermore, follow the outer arc surface axial interval of spine is equipped with the screw hole, be equipped with the pilot hole that corresponds with this screw hole on the horn body, will through bolt, screw hole and pilot hole the spine assembly is inside the horn body, guarantees the outer arc surface size of upper and lower spine simultaneously, guarantees the size uniformity of upper spine and lower spine, improves the precision of antenna.
Furthermore, the end face of the lower ridge is provided with an end face threaded hole, the horn body is provided with an end face assembly hole corresponding to the end face threaded hole, the lower ridge is fixed on the horn body through the bolt, the end face threaded hole and the end face assembly hole, a gap between the end face of the lower ridge and the end face of the horn is eliminated, and the precision of the antenna is improved.
Furthermore, the upper ridge and the lower ridge are manufactured integrally, and specifically comprise,
step 1: according to the position of the antenna assembly, processing an outer arc surface of an upper ridge and an outer arc surface of a lower ridge on an original to form an intermediate piece;
step 2: symmetrically cutting the intermediate piece along the axial direction of the intermediate piece according to the thickness of the ridge to form the upper side surface and the lower side surface of the ridge;
and step 3: processing a threaded bottom hole along the axial direction of the outer arc surface of the ridge;
and 4, step 4: removing the connecting part of the upper and lower ridges to separate the upper and lower ridges;
and 5: the threaded bottom holes of the end surfaces of the upper ridge and the lower ridge are machined firstly, and then the threaded holes of the upper ridge and the lower ridge are tapped.
Furthermore, the intermediate piece comprises a circular truncated cone and a first cylinder, wherein the smaller end face of the circular truncated cone extends outwards in the axial direction, the step 1 also comprises the step of reserving 5mm on the end face of the first cylinder, and reserving 20mm on the larger end face of the circular truncated cone;
and step 4, removing the reserved allowance of the first cylindrical end surface and the larger end surface of the circular truncated cone.
Furthermore, in order to unify the clamping positions and the reference of all subsequent processes, the step 1 further comprises the step of processing a rectangular clamping position on the larger end face of the circular truncated cone, the direction is identified by using the rectangular surface of the rectangular clamping position, all subsequent processes are fixed by using the clamping position, and the clamping position is the reference for mounting and aligning all the processes so as to reduce the clamping and aligning errors of all the processes to the limit.
Further, include
Step 1: according to the position of the antenna assembly, processing an outer arc surface of an upper ridge and an outer arc surface of a lower ridge on an original to form an intermediate piece;
step 2: symmetrically cutting the intermediate piece along the axial direction of the intermediate piece according to the thickness of the ridge to form the upper side surface and the lower side surface of the ridge;
and step 3: processing a threaded bottom hole along the axial direction of the outer arc surface of the ridge;
and 4, step 4: removing the connecting part of the upper and lower ridges to separate the upper and lower ridges;
and 5: the threaded bottom holes of the end surfaces of the upper ridge and the lower ridge are machined firstly, and then the threaded holes of the upper ridge and the lower ridge are tapped.
Furthermore, the intermediate piece comprises a circular truncated cone and a first cylinder, wherein the smaller end face of the circular truncated cone extends outwards in the axial direction, the step 1 also comprises the step of reserving 5mm on the end face of the first cylinder, and reserving 20mm on the larger end face of the circular truncated cone;
and step 4, removing the reserved allowance of the first cylindrical end surface and the larger end surface of the circular truncated cone.
Furthermore, the step 1 further comprises the step of processing a rectangular clamping position on the larger end face of the circular truncated cone, and identifying the direction by using the rectangular surface.
Further, include
Assembling the lower spine and then the upper spine;
finally, assembling the feed seat on the smaller end face of the horn body to complete main assembly work;
the assembling of the upper and lower ridges specifically includes,
assembling the lower ridge on the horn body by using screws, firstly screwing the screws on the smaller end surface of the horn body, removing the gap between the end surface of the lower ridge and the end surface of the horn body, and then sequentially screwing the screws on the outer arc surface of the lower ridge, and removing the gap between the arc surface of the upper ridge and the inner arc surface of the horn body;
the upper ridge is assembled on the horn body by screws, and then the screws on the outer arc surface of the upper ridge are sequentially screwed.
By adopting the technical scheme, the invention has the beneficial effects that: the integrated conical horn splicing structure and the integrated manufacturing method of the two key parts, namely the upper ridge and the lower ridge, are provided, and the double-ridge conical horn antenna with high precision, high consistency and high performance is obtained.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of a double-ridged conical horn antenna according to the present invention;
FIG. 2 is a flow chart of a process for integrally processing upper and lower ridges;
FIG. 3 is a schematic view of an intermediary;
FIG. 4 is a schematic view of a rectangular clamp being machined into an intermediate member;
FIG. 5 is a schematic view of a symmetrical cutting intermediate piece;
FIG. 6 is a schematic view of the axial machining of a threaded bottom hole along the outside arc of a ridge;
FIG. 7 is a schematic view of the upper and lower ridges separated;
FIG. 8 is an isometric view of a double-ridged conical horn antenna;
FIG. 9 is an exploded view of an isometric view of a double-ridged conical horn antenna;
FIG. 10 is a standing wave diagram of a double-ridged conical horn antenna;
fig. 11 is a pattern diagram of a double-ridged conical horn antenna;
the drawings are labeled as follows:
1-horn body, 2-upper ridge, 3-lower ridge, 4-connecting screw 1, 5-connecting screw 2, 6-feeding seat, 7-excess material, 8-ridge, 9-rectangular clamping position and 10-connecting screw 3.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Because in the structural form of the existing double-ridge conical horn antenna, the welding deformation of the blocks is large, the precision is poor, the strength is low, the roughness of the inner surface of the carbon fiber composite material integrally molded and integrally cast horn is poor, the dimensional precision is low, the cost is high, the number of parts for disassembling the structural form by assembling the parts is large, the accumulated error in the assembling link is large, gaps are easy to appear between ridges and waveguide cavities and the inner wall of the horn section, and the structural forms can not meet the requirements of certain high-precision double-ridge conical horn antennas. Therefore, in order to avoid the defects of the existing method, the invention provides a combined manufacturing method of an integrated conical horn assembly structure and two key parts, namely an upper ridge and a lower ridge, so as to obtain the double-ridge conical horn antenna with high precision, high consistency and high performance.
The structure of the double-ridge conical horn antenna is shown in figure 1, and comprises a horn body 1, a feed seat 6 and a ridge 8 assembled in the horn body 1, wherein the feed seat 6 is assembled with the horn body 1 through a connecting screw 3; through improving traditional spare part assembly structure, with loudspeaker section, waveguide section, mounting flange, the integrated part of back shroud, the horn body 1 in figure 1 has effectively reduced part number and assembly link, has improved the precision and the production efficiency of antenna.
As shown in fig. 1, the ridge 8 includes an upper ridge 2 and a lower ridge 3, threaded holes are axially arranged along the outer arc surface of the ridge 8 at intervals, assembly holes corresponding to the threaded holes are arranged on the horn body 1, and the ridge 8 is assembled inside the horn body 1 through the connecting screws 1, the threaded holes and the assembly holes. And a connecting screw 2 is arranged between the left end surface of the lower ridge 3 and the end surface of the horn, so that the gap between the end surface of the lower ridge and the end surface of the horn is eliminated, and the accuracy of the antenna is improved. In addition, the method has the advantages that key parts in the antenna are innovated, namely a manufacturing method of the upper ridge and the lower ridge which are combined, the sizes of the outer arc surfaces of the upper ridge and the lower ridge are ensured, the size consistency of the upper ridge 2 and the lower ridge 3 is ensured, the accuracy of the antenna is improved, and the method comprises the following specific steps. The main processing flow is shown in figure 2.
The first step is as follows: the upper ridge 2 and the lower ridge 3 are combined into a whole in the process according to the assembling position of the antenna, the outer arc surfaces of the upper ridge 2 and the lower ridge 3 are simultaneously machined by a numerical control lathe to form an intermediate piece, as shown in figure 3, the intermediate piece comprises a circular table and a first cylinder, the smaller end surface of the circular table extends outwards along the axial direction, machining allowance is reserved at two ends of the intermediate piece outwards along the axial direction, the small end is reserved for 5mm, and the large end is reserved for 20mm, so that subsequent machining is facilitated.
The second step is that: in order to unify the clamping positions and the reference of all subsequent procedures, a four-axis numerical control milling machine is used for clamping at one time, the large end face is finely milled, and a rectangular clamping position 9 is processed at the large end, as shown in figure 4. All subsequent processes are fixed by the clamping position, and the clamping position is also a reference for mounting and aligning all the processes, so that clamping and aligning errors of all the processes are reduced to the limit.
The third step: the rectangular clamp 9 is fixed, and the direction is identified by using the rectangular surface. The rectangular surface is aligned, excess remainder 7 in the ridge thickness direction is symmetrically cut and removed by adopting a linear cutting method, and the upper side surface and the lower side surface of the upper ridge 2 and the lower ridge 3 are processed at the same time, as shown in figure 5.
The fourth step: the rectangular clamp 9 is fixed, and the direction is identified by using the rectangular surface. The rectangular surface is aligned, and a mounting thread bottom hole on the arc top of the upper ridge and the lower ridge is machined by one-time clamping by using a five-axis numerical control milling machine, as shown in fig. 6.
The fifth step: the rectangular clamp 9 is fixed, and the direction is identified by using the rectangular surface. The rectangular surface is aligned, the integral parts of the upper ridge and the lower ridge are removed by linear cutting, the reserved allowance of the large end and the small end and the rectangular clamping position 9 of the large end are removed, the upper ridge and the lower ridge are separated, and the upper ridge and the lower ridge are obtained respectively, as shown in figure 7. Note that the upper and lower ridges are marked with matching marks respectively, and the upper and lower ridges are manufactured integrally;
and a sixth step: the threaded bottom holes on the end surfaces of the upper ridge 2 and the lower ridge 3 are processed firstly, and then the threaded holes of the upper ridge and the lower ridge are tapped respectively. By this, the main machining work of the upper and lower ridges is completed.
Compared with the traditional structure form and the manufacturing method, the integrated structure of the double-ridge conical horn antenna and the integrated manufacturing method of the two key parts, namely the upper ridge and the lower ridge, have the following obvious advantages.
Not only the parts of the antenna are reduced and the accumulated errors of the assembly connection of a plurality of parts are eliminated, but also the machining precision of the integrated horn body is far higher than the assembly connection precision of the plurality of parts; the outer arc surfaces of the upper ridge and the lower ridge, which are manufactured and obtained through the combination of the upper ridge and the lower ridge, are highly attached to the inner circular surface of the externally-mounted circular horn body, gaps are reduced to the maximum extent, the upper ridge and the lower ridge are equal in thickness, the ridge distance precision of the upper ridge and the lower ridge is extremely high, and the step precision of the ends of the upper ridge and the lower ridge is also extremely high; thereby greatly improving the precision, consistency and electromagnetic performance of the double-ridge conical horn antenna.
In addition, the antenna has simple structure and good manufacturability of each part, thereby shortening the manufacturing period of the antenna and reducing the manufacturing cost of the antenna; and the main parts are made of high-strength aluminum alloy materials, so that the antenna has good rigidity and strength and wide application range.
Of course, the integrated horn structure and the integrated ridge manufacturing method provided by the invention are also suitable for the structure and manufacturing scene of other similar high-precision antennas, such as a high-precision four-ridge horn antenna, a double-ridge rectangular horn antenna and the like.
The structure of the double-ridged conical horn antenna proposed by the present invention is shown in fig. 8 and 9, wherein fig. 9 is an exploded view.
The double-ridged conical horn antenna according to the present invention is shown in fig. 8 and 9.
The external dimension of the antenna is phi 88mm × 236mm
And (4) assembling after finishing processing and manufacturing of each part, wherein the same antenna is assembled according to the matching marks of the upper ridge and the lower ridge during assembly, and cannot be mixed. Spine 3 under assembling earlier during the assembly, utilize connecting screw 1 and connecting screw 2 will be down spine 3 assemble the loudspeaker body 1 on, screw up connecting screw 2 earlier, cut off the clearance between spine terminal surface and the loudspeaker terminal surface down, screw up connecting screw 1 in proper order again, cut off the clearance between spine cambered surface and the loudspeaker intrados down, then utilize connecting screw 1 to assemble last spine 2 on the loudspeaker body 1, screw up connecting screw 1 in proper order, cut off the clearance between last spine cambered surface and the loudspeaker intrados, utilize connecting screw 3 to assemble on the loudspeaker body 1 with present electric seat 6 at last, accomplish main assembly work.
The comparison curves of the antenna standing wave and directional diagram real object test and simulation after the assembly are shown in fig. 10 and fig. 11, the test and simulation results are highly consistent, and the antenna qualification rate is 100%.
While the foregoing description shows and describes a preferred embodiment of the invention, it is to be understood, as noted above, that the invention is not limited to the form disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and may be modified within the scope of the inventive concept described herein by the above teachings or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a two spine circular cone horn antenna structure which characterized in that: comprises a horn body, a feed base and a ridge assembled inside the horn body;
the horn body is of an integrated structure and comprises a horn section, a waveguide section, a mounting flange and a rear cover plate;
the ridges include an upper ridge and a lower ridge.
2. The double-ridged-cone horn antenna structure of claim 1, wherein: the edge the outer arc surface axial interval of ridge is equipped with the screw hole, be equipped with the pilot hole that corresponds with this screw hole on the horn body, will through bolt, screw hole and pilot hole the ridge assembly is inside the horn body.
3. The double-ridged-cone horn antenna structure of claim 1, wherein: the end face of the lower ridge is provided with an end face threaded hole, the horn body is provided with an end face assembly hole corresponding to the end face threaded hole, and the lower ridge is fixed on the horn body through a bolt, the end face threaded hole and the end face assembly hole.
4. The double-ridged-cone horn antenna structure of claim 1, wherein: the upper ridge and the lower ridge are manufactured integrally, and specifically comprise,
step 1: according to the position of the antenna assembly, processing an outer arc surface of an upper ridge and an outer arc surface of a lower ridge on an original to form an intermediate piece;
step 2: symmetrically cutting the intermediate piece along the axial direction of the intermediate piece according to the thickness of the ridge to form the upper side surface and the lower side surface of the ridge;
and step 3: processing a threaded bottom hole along the axial direction of the outer arc surface of the ridge;
and 4, step 4: removing the connecting part of the upper and lower ridges to separate the upper and lower ridges;
and 5: the threaded bottom holes of the end surfaces of the upper ridge and the lower ridge are machined firstly, and then the threaded holes of the upper ridge and the lower ridge are tapped.
5. The double-ridged-cone horn antenna structure of claim 4, wherein: the method comprises the following steps that (1) the middle piece comprises a circular truncated cone and a first cylinder, wherein the smaller end face of the circular truncated cone extends outwards in the axial direction, 5mm is reserved on the end face of the first cylinder, and 20mm is reserved on the larger end face of the circular truncated cone;
and step 4, removing the reserved allowance of the first cylindrical end surface and the larger end surface of the circular truncated cone.
6. The double-ridged-cone horn antenna structure of claim 5, wherein: the step 1 further comprises the step of processing a rectangular clamping position on the larger end face of the circular truncated cone, and identifying the direction by using the rectangular surface of the rectangular clamping position.
7. A method of manufacturing upper and lower ridges of a double-ridged-cone horn antenna, characterized by: comprises that
Step 1: according to the position of the antenna assembly, processing an outer arc surface of an upper ridge and an outer arc surface of a lower ridge on an original to form an intermediate piece;
step 2: symmetrically cutting the intermediate piece along the axial direction of the intermediate piece according to the thickness of the ridge to form the upper side surface and the lower side surface of the ridge;
and step 3: processing a threaded bottom hole along the axial direction of the outer arc surface of the ridge;
and 4, step 4: removing the connecting part of the upper and lower ridges to separate the upper and lower ridges;
and 5: the threaded bottom holes of the end surfaces of the upper ridge and the lower ridge are machined firstly, and then the threaded holes of the upper ridge and the lower ridge are tapped.
8. The method of manufacturing the upper and lower ridges of the double-ridged-conical-horn antenna according to claim 7, wherein: the method comprises the following steps that (1) the middle piece comprises a circular truncated cone and a first cylinder, wherein the smaller end face of the circular truncated cone extends outwards in the axial direction, 5mm is reserved on the end face of the first cylinder, and 20mm is reserved on the larger end face of the circular truncated cone;
and step 4, removing the reserved allowance of the first cylindrical end surface and the larger end surface of the circular truncated cone.
9. The method of manufacturing the upper and lower ridges of the double-ridged-conical-horn antenna according to claim 7, wherein: the step 1 further comprises the step of processing a rectangular clamping position on the larger end face of the circular truncated cone, and identifying the direction by using a rectangular surface.
10. A method of mounting upper and lower ridges of a double-ridged-cone horn antenna, characterized by: comprises that
Assembling the lower spine and then the upper spine;
finally, assembling the feed seat on the smaller end face of the horn body;
the assembling of the upper and lower ridges specifically includes,
assembling the lower ridge on the horn body by using screws, firstly screwing the screws on the smaller end surface of the horn body, and then sequentially screwing the screws on the outer arc surface of the lower ridge;
the upper ridge is assembled on the horn body by screws, and then the screws on the outer arc surface of the upper ridge are sequentially screwed.
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CN112271458A (en) * 2020-10-28 2021-01-26 中国电子科技集团公司第十四研究所 High-precision machining method for waveguide horn
CN113504419A (en) * 2021-09-13 2021-10-15 中国电子科技集团公司第二十九研究所 Phase test fixture of integrated metal slot array antenna
RU212979U1 (en) * 2021-12-28 2022-08-17 Григорий Романович Беляев C-band horn antenna made of carbon composite material with a polarizer
CN115971929A (en) * 2023-03-17 2023-04-18 西安瑞霖电子科技股份有限公司 Tool clamp for manufacturing feed horn, feed horn and manufacturing method of feed horn

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