CN114552184B - Small measurement and control conical column spiral antenna and installation method - Google Patents
Small measurement and control conical column spiral antenna and installation method Download PDFInfo
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- CN114552184B CN114552184B CN202210202987.XA CN202210202987A CN114552184B CN 114552184 B CN114552184 B CN 114552184B CN 202210202987 A CN202210202987 A CN 202210202987A CN 114552184 B CN114552184 B CN 114552184B
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/14—Supports; Mounting means for wire or other non-rigid radiating elements
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Abstract
The application provides a method for mounting a small measurement and control conical column spiral antenna. The small measurement and control conical column spiral antenna comprises a spiral groove for spiral line installation, wherein a first placing cavity is arranged in a framework, a first opening is formed in the first placing cavity and the top of the framework, and a second opening is formed in the first placing cavity and the bottom of the framework; the conductor comprises an inner conductor, a copper column and a bottom plate, wherein the copper column is arranged in the first placing cavity, a second placing cavity for axially placing the inner conductor is arranged in the copper column, a first connecting part is arranged at the bottom of the copper column, a second connecting part is arranged on the base, a first through hole communicated with the second placing cavity is formed in the bottom plate, the bottom plate is fixed with the framework through a fastener, the inner conductor is arranged in the second placing cavity, and the inner conductor is electrically connected with the outer conductor; the spiral line is arranged in the spiral groove, one end of the spiral line is arranged at the bottom of the framework, and the other end of the spiral line is wound with the outer conductor and then fixed at the top of the framework; a connection means defining an axial movement of the inner conductor is mounted on the base plate.
Description
Technical Field
The application relates to the field of antenna equipment, in particular to a small measurement and control conical column spiral antenna and an installation method.
Background
Microwave communication is a communication system using microwaves as carriers, and antennas are used for completing conversion from guided waves to radiated waves in the microwave system. The helical antenna has excellent circular polarization radiation performance and strong beam forming capability, and is widely applied to a satellite-borne microwave communication system.
The conical column spiral antenna is generally applied to an S frequency band, the frequency is low, the spiral antenna is relatively large, and assembly of parts is convenient. The conical column spiral antenna applied to the X frequency band has higher working frequency, the spiral antenna is relatively smaller, and particularly, the inner conductor and the outer conductor are smaller in size, so that the connection and assembly of all parts are difficult to finish. The traditional skeleton is generally formed by adopting glass fiber reinforced plastic materials, and has the advantages of larger weight, higher processing cost, long period and poor consistency of dielectric constants of finished products; at present, although the skeleton formed by 3D printing of glass fiber/nylon mixed powder has better dielectric constant consistency, the skeleton has low melting point and limited application environment; the outer conductor of the integrated design is made of brass, so that the weight is large, and the emission cost is high; the separate design of the inner conductor and the matching sleeve results in a longer antenna tuning time. Aiming at the current space navigation emission situation, a small-sized conical column spiral antenna which can be applied to an X frequency band occasion and has the advantages of light weight, rapid forming, convenient debugging and high reliability needs to be designed.
In order to solve the problems, the application provides a small measurement and control conical column spiral antenna and an installation method.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides a method for mounting a small measurement and control conical column spiral antenna.
The technical scheme of the application is as follows:
a small measurement and control cone column spiral antenna comprises a framework, a spiral line, a conductor and a connecting device;
the outer surface of the framework is provided with a spiral groove for installing the spiral line, a first placing cavity is arranged in the framework, a first opening is formed in the first placing cavity and the top of the framework, and a second opening is formed in the first placing cavity and the bottom of the framework;
the conductor comprises an outer conductor and an inner conductor, the outer conductor comprises a copper column and a bottom plate, the copper column is arranged in the first placing cavity, a second placing cavity for axially placing the inner conductor is arranged in the copper column, a first connecting part is arranged at the bottom of the copper column, a second connecting part matched with the first connecting part is arranged on the base, a first through hole communicated with the second placing cavity is formed in the bottom plate, the bottom plate is fixed with the framework through a fastener, the inner conductor is arranged in the second placing cavity, and the inner conductor is electrically connected with the outer conductor;
the spiral line is arranged in the spiral groove, one end of the spiral line is arranged at the bottom of the framework, and the other end of the spiral line is fixed at the top of the framework after being wound around the outer conductor;
the connecting device is mounted on the base plate for limiting axial movement of the inner conductor.
In the technical scheme, the first connecting part of the copper column is matched with the second connecting part of the bottom plate, so that the copper column and the bottom plate form a stable outer conductor structure, and the spiral antenna is convenient to install in the actual use process; the bottom plate is fixedly connected with the framework through the fastener to limit the movement of the outer conductor, so that the stability of the spiral antenna is maintained; the helix sets up in the helicla flute on the skeleton, and the one end of helix is fixed in on the skeleton, and the other end is fixed in on the copper post, and the electric connection of inner conductor and outer conductor for helical antenna can work, and connecting device and bottom plate fixed connection can inject the axial displacement of inner conductor, keeps helical antenna's accuracy and stability.
On the basis of the scheme and as a preferable scheme of the scheme, the top of the outer conductor is provided with a limiting part, the limiting part comprises a limiting block arranged at the top of the outer conductor, and the limiting block is provided with a perforation for the spiral line to pass through.
In this technical scheme, spacing portion can inject the copper post and penetrate first installation cavity, and spacing portion can block the further of copper post to stretch into for helical antenna's installation effectiveness.
On the basis of the above scheme and as the preferable scheme of the above scheme, the stopper is including symmetry set up in first stopper in outer conductor top and second stopper, the perforation includes first perforation and second perforation, first perforation is located on the first stopper, first fenestration's both ends opening is located respectively on two adjacent surface of first stopper, the second perforation is located on the second stopper, second fenestration's both ends opening is located respectively on two adjacent surface of second stopper.
In the technical scheme, the limiting block comprises a first limiting block and a second limiting block, so that the copper column is convenient to take, and the copper column is fixedly connected with the bottom plate; the first limiting block is provided with a first perforation and a second perforation on the second limiting block, so that the rotation angle in the copper column installation process is reduced, and the installation efficiency of the spiral antenna is improved.
On the basis of the scheme and as a preferable scheme of the scheme, the first limiting block/the second limiting block is provided with a plurality of guide posts, and each guide post is connected with the top of the inner conductor through a connecting sheet.
In the technical scheme, a plurality of guide posts are arranged on the first limiting block/the second limiting block, and each guide post is electrically connected with the copper post through the connecting piece.
On the basis of the scheme and as a preferable scheme of the scheme, a first positioning hole for fixing one end of the spiral line is formed in the framework where the bottom end of the bottom of the spiral groove is located, and a second positioning hole for fixing the copper column is formed in the top of the framework.
In this technical scheme, be equipped with first locating hole and second locating hole on the skeleton, first locating hole is used for the one end of fixed helix, and the second locating hole is used for fixed copper post, improves the stability of copper post and skeleton relative position.
On the basis of the scheme and as a preferable scheme of the scheme, an outer flange is arranged on the outer surface of the copper column, a positioning pin hole is arranged on the outer flange, and the positioning pin penetrates through the framework and stretches into the positioning pin hole to limit the relative position of the copper column and the framework support.
In this technical scheme, the surface of copper post is equipped with the outer flange, is equipped with the location pinhole on the outer flange for cooperate first locating hole/spacing hole of second, the location pinhole on the outer flange avoids the pin to pass in first locating hole/second locating hole stretches into the copper post, destroys copper post structure, influences helical antenna holistic stability.
On the basis of the above scheme and as a preferable scheme of the above scheme, a stay ring is arranged between the inner conductor and the outer conductor, and the inner conductor and the stay ring are of an integral structure.
In this technical scheme, inner conductor and prop circle integral structure, the inner conductor of being convenient for is installed in the second installation cavity of copper post, avoids helix performance debugging, improves helical antenna's installation effectiveness.
On the basis of the above scheme and as a preferable scheme of the above scheme, the connecting device comprises a socket, a contact pin and a medium ring, the socket is fixed on the bottom plate through a bolt, one end of the contact pin is provided with a limiting part fixedly connected with the inner conductor, the medium ring is installed in the socket, and the medium ring is provided with a limiting cavity limiting the axial movement of the limiting part.
In the technical scheme, in a specific structure of the connecting device, the limiting part of the contact pin is fixedly connected with the inner conductor, the limiting cavity of the dielectric ring is wrapped on the outer surface of the limiting part, the axial movement of the limiting part of the contact pin is limited, so that the axial movement of the inner conductor is limited, the socket is wrapped on the outer surface of the dielectric ring, the movement of the dielectric ring is limited, the axial movement of the inner conductor is limited on the socket fixed connection bottom plate, and the accuracy of measurement and control data of the spiral antenna is ensured.
On the basis of the above scheme and as a preferable scheme of the above scheme, the pin comprises a connecting portion and a limiting portion, the outer peripheral diameter of the limiting portion is larger than that of the connecting portion, and a fixing groove for fixing the inner conductor is formed in the limiting portion.
In this technical scheme, the structure of spacing portion and connecting portion on the contact pin, the periphery diameter of spacing portion is greater than the periphery diameter of connecting portion.
In the above aspect, and as a preferable aspect of the above aspect, the first connecting portion is a connecting screw thread, and the second connecting portion is a screw hole corresponding to the connecting screw thread.
In this technical scheme, first connecting portion connecting thread, second connecting portion are the screw hole for realize the fixed connection of copper post and bottom plate, fixed knot constructs simply, and is fixed convenient, and the outer conductor of fixed formation can keep stable operating condition.
On the basis of the scheme and as a preferable scheme of the scheme, the framework is formed by processing polyimide materials.
In the technical scheme, the framework produced by the polyimide material has light weight, stable dielectric constant and high melting point, and can be suitable for severe space environment.
The method for installing the small measurement and control conical column spiral antenna comprises the following steps:
step S1: the copper column penetrates into the first placing cavity through the first opening at the top of the framework and penetrates out of the second opening at the bottom of the framework until the limiting block is contacted with the top of the framework, and then the first connecting part at the bottom of the copper column is matched with the second connecting part of the bottom plate, so that the copper column and the bottom plate are fixedly connected to form an outer conductor;
step S2: rotating the bottom plate to align the positioning pin holes on the copper columns with the second positioning holes on the framework, and fixedly connecting the bottom plate with the bottom of the framework;
step S3: the spiral line is fixed at the bottom of the framework, the other end of the spiral line is wound upwards along the spiral groove, enters into the through hole from the top end of the spiral groove to one end face of the limiting block, penetrates out of the bending hole from the other end of the limiting block and is fixed;
step S4: placing the inner conductor in a second placing cavity, wherein each guide post on the limiting block is fixed with the top of the inner conductor through a connecting sheet, and the bottom of the inner conductor extends out of the bottom plate;
step S5: the bottom of the inner conductor is inserted into the contact pin, and two parts of inner medium rings are combined and wrapped on the outer surface of the contact pin, so that the limiting part of the contact pin is positioned in the fixing groove of the inner medium ring;
step S6: the socket is sleeved on the outer surface of the inner medium ring, the movement of the inner medium ring is limited, and the socket is fixed on the bottom plate.
In the technical scheme, the installation method of the spiral antenna is simple in installation, high in installation efficiency, convenient to debug, high in stability of the spiral antenna and capable of acquiring accuracy of measurement and control data.
On the basis of the above scheme and as a preferable scheme of the above scheme, in the step S3, the fixing mode of the spiral line and the skeleton is soldering and fixing, and the fixing mode of the spiral line and the stopper is soldering and fixing.
In this technical scheme, helix and skeleton and helix and stopper pass through the soldering fixedly, can connect fixedly on the spiral antenna on the small volume.
On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme, in the step S4, the fixing manner of the connecting piece and the guide post is soldering, and the fixing manner of the connecting piece and the inner conductor is soldering.
In the technical scheme, the connecting piece is fixed with the guide post through soldering, the stability of connection is kept, meanwhile, the electric connection is kept, and the connecting piece is fixedly connected with the inner conductor through soldering, and meanwhile, the electric connection is kept.
Compared with the prior art, the technical scheme provided by the application has the following beneficial effects:
the small measurement and control spiral antenna provided by the application has the advantages that the outer conductor is divided into the copper column and the base, the copper column is processed by the brass rod, the bottom plate is processed by the aluminum alloy, the electrical property of the spiral line is ensured to be stable, the self weight of the spiral line is reduced, the processing cost is saved, and the processing period is shortened.
Compared with the traditional glass fiber reinforced plastic skeleton, the spiral antenna provided by the application has good dielectric constant consistency and lighter weight; compared with a framework formed by 3D printing of glass fiber/nylon mixed powder, the framework has high melting point and can be applied to a more severe space environment; the skeleton dielectric constant uniformity is good, and the inner conductor and the support ring are formed by adopting an integrated design, so that the time required by antenna debugging is greatly reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a perspective view schematically showing the overall structure of a small measurement and control cone-column helical antenna according to the present application;
FIG. 2 is a perspective view of a cross-sectional view of a small measurement and control cone-column helical antenna of the present application;
FIG. 3 is a plan view schematic illustration of a cross-sectional view of a small measurement and control tapered-column helical antenna of the present application;
FIG. 4 is a perspective view of a copper pillar of a small measurement and control cone pillar helical antenna according to the present application;
FIG. 5 is an enlarged view of a copper pillar portion of a small measurement and control cone pillar helical antenna of the present application;
FIG. 6 is a perspective view of a small measurement and control cone-column helical antenna outer conductor according to the present application;
FIG. 7 is a perspective view of the inner conductor of a small measurement and control cone-column helical antenna according to the present application;
FIG. 8 is a perspective view of a small measurement and control cone-column helical antenna skeleton according to the present application;
FIG. 9 is a schematic diagram of a dielectric ring cross-sectional view of a small measurement and control cone-column helical antenna according to the present application.
In the figure: 1. a skeleton; 11. a first placement cavity; 12. a first positioning hole; 13. a spiral groove; 14. a second positioning hole; 2. a spiral line; 3. copper columns; 31. a first limiting block; 311. a first perforation; 32. a second limiting block; 321. a second perforation; 33. a second placement cavity; 34. a guide post; 35. an outer flange; 351. positioning pin holes; 36. a first connection portion; 4. a bottom plate; 5. an inner conductor; 51. a support ring; 61. a contact pin; 611. a limit part; 6111. a fixing groove; 612. a connection part; 62. a dielectric ring; 621. a spacing cavity; 63. a socket.
Detailed Description
The present application will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present application, but are not intended to limit the application in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present application.
For a better illustration of the present application, the following detailed description of the application is provided in connection with fig. 1-9.
Example 1
Referring to fig. 1 and 6, a small measurement and control cone-column spiral antenna is characterized by comprising a framework 1, a spiral line 2, a conductor and a connecting device; the outer surface of the framework 1 is provided with a spiral groove 13 for installing the spiral line 2, a first placing cavity 11 is arranged in the framework 1, a first opening is formed in the first placing cavity 11 and the top of the framework 1, and a second opening is formed in the first placing cavity 11 and the bottom of the framework 1; the conductor comprises an outer conductor and an inner conductor 5, the outer conductor comprises a copper column 3 and a bottom plate 4, the copper column 3 is arranged in a first placing cavity 11, a second placing cavity 33 in which the inner conductor 5 is axially placed is arranged in the copper column 3, a first connecting part 36 is arranged at the bottom of the copper column 3, a second connecting part 612 matched with the first connecting part 36 is arranged on a base, a first through hole communicated with the second placing cavity 33 is arranged on the bottom plate 4, the bottom plate 4 is fixed with the framework 1 through a fastener, the inner conductor 5 is arranged in the second placing cavity 33, and the inner conductor 5 is electrically connected with the outer conductor; the spiral line 2 is arranged in the spiral groove 13, one end of the spiral line 2 is arranged at the bottom of the framework 1, and the other end of the spiral line 2 is fixed at the top of the framework 1 after being wound with an outer conductor; the connection means are mounted on the base plate 4 for limiting the axial movement of the inner conductor 5. It should be noted that, in this embodiment, the skeleton has a tapered structure.
In the actual use process, the first connecting part 36 of the copper column 3 is matched with the second connecting part 612 of the bottom plate 4, so that the copper column 3 and the bottom plate 4 form a stable outer conductor structure, and the installation of the spiral antenna is convenient in the actual use process; the bottom plate 4 is fixedly connected with the framework 1 through a fastener to limit the movement of the outer conductor, so that the stability of the spiral antenna is maintained; the helix 2 sets up in the helicla flute 13 on skeleton 1, and the one end of helix 2 is fixed in on the skeleton 1, and the other end is fixed in on the copper post 3, and the electric connection of inner conductor 5 and outer conductor for helical antenna can work, and connecting device and bottom plate 4 fixed connection can inject the axial displacement of inner conductor 5, keeps helical antenna's accuracy and stability. The application is worth mentioning that, the small-sized measurement and control spiral antenna provided by the application has the advantages that the outer conductor is divided into the copper column and the base, the copper column is processed by the brass rod, the bottom plate is processed by the aluminum alloy, the electrical property of the spiral line is ensured to be stable, the self weight of the spiral line is reduced, the processing cost is saved, and the processing period is shortened.
Referring to fig. 2-4, in a specific example of this embodiment, a limiting portion 611 is disposed on the top of the outer conductor, and the limiting portion 611 includes a limiting block disposed on the top of the outer conductor, and a through hole for the spiral line 2 to pass through is disposed on the limiting block. In actual use, the limiting part 611 can limit the copper column 3 to penetrate into the first mounting cavity, and the limiting part 611 can prevent the copper column 3 from further extending into the first mounting cavity, so that the mounting efficiency of the spiral antenna is improved. Referring to fig. 3, in this embodiment, the limiting blocks include a first limiting block 31 and a second limiting block 32 symmetrically disposed on the top of the outer conductor, the through holes include a first through hole 311 and a second through hole 321, the first through hole 311 is located on the first limiting block 31, two end openings of the first through hole 311 are located on two adjacent outer surfaces of the first limiting block 31, the second through hole 321 is located on the second limiting block 32, and two end openings of the second through hole 321 are located on two adjacent outer surfaces of the second limiting block 32. The limiting blocks comprise a first limiting block 31 and a second limiting block 32, so that the copper column 3 is convenient to take, and the copper column 3 is fixedly connected with the bottom plate 4; the first perforation 311 arranged on the first limiting block 31 and the second perforation 321 arranged on the second limiting block 32 reduce the rotation angle of the copper column 3 in the installation process and quicken the installation efficiency of the spiral antenna.
Referring to fig. 1-4, a plurality of guide posts are arranged on the first limiting block 31/the second limiting block 32, and each guide post is connected with the top of the inner conductor 5 through a connecting sheet. In the actual use process, the first limiting block 31 and the second limiting block 32 are provided with a plurality of guide posts, and each guide post is electrically connected with the copper post 3 through a connecting sheet. Referring to fig. 4-5, the number of guide posts in the present embodiment is three, and the number of connecting pieces matched with the guide posts is three. In other embodiments the location of the distribution of the guide posts is not limited.
Referring to fig. 8, in a specific example of this embodiment, a first positioning hole 12 for fixing one end of the spiral line 2 is provided on the skeleton 1 where the bottom end of the spiral groove 13 is located, and a second positioning hole 14 for fixing the copper pillar 3 is provided on the top of the skeleton 1. In the actual use process, be equipped with first locating hole 12 and second locating hole 14 on the skeleton 1, first locating hole 12 is used for fixed helix 2's one end, and second locating hole 14 is used for fixed copper post 3, improves the stability of copper post 3 and skeleton 1 relative position. Referring to fig. 4-5, in a specific example of this embodiment, an outer flange 35 is provided on the outer surface of the copper pillar 3, and a positioning pin hole is provided on the outer flange 35, and the positioning pin penetrates through the framework 1 and extends into the positioning pin hole to define the relative position of the copper pillar 3 and the framework 1. In the in-service use process, the surface of copper post 3 is equipped with outer flange 35, is equipped with the location pinhole on the outer flange 35 for cooperate first locating hole 12/spacing hole of second, the location pinhole on the outer flange 35 avoids the pin to pass first locating hole 12/second locating hole 14 and stretches into in the copper post 3, destroys copper post 3 structure, influences the holistic stability of spiral helix.
Referring to fig. 7, in the specific example of the present embodiment, a stay ring 51 is disposed between the inner conductor 5 and the outer conductor, and the inner conductor 5 and the stay ring 51 are integrally formed. The inner conductor 5 and the supporting ring 51 are of an integrated structure, so that the inner conductor 5 is conveniently installed in the second installation cavity of the copper column 3, the performance debugging of the spiral line 2 is avoided, and the installation efficiency of the spiral antenna is improved.
Referring to fig. 2 and 3, the connection device includes a socket 63, a pin 61, and a dielectric ring 62, the socket 63 is fixed on the base plate 4 by a bolt, one end of the pin 61 is provided with a limiting portion 611 fixedly connected with the inner conductor 5, the dielectric ring 62 is installed in the socket 63, and the dielectric ring 62 is provided with a limiting cavity defining the axial movement of the limiting portion 611. In the actual use process, the limiting part 611 of the contact pin 61 is fixedly connected with the inner conductor 5, the limiting cavity of the dielectric ring 62 is wrapped on the outer surface of the limiting part 611, and the axial movement of the limiting part 611 of the contact pin 61 is limited, so that the axial movement of the inner conductor 5 is limited, the socket 63 is wrapped on the outer surface of the dielectric ring 62, the movement of the dielectric ring 62 is limited, the socket 63 is fixedly connected with the bottom plate 4, the axial movement of the inner conductor 5 is limited, and the accuracy of measurement and control data of the spiral antenna is ensured.
Referring to fig. 2, 3 and 9, in a specific example of the present embodiment, the contact pin 61 includes a connection portion 612 and a limit portion 611, the limit portion 611 has an outer peripheral diameter larger than that of the connection portion 612, and the limit portion 611 is provided with a fixing groove 6111 for fixing with the inner conductor 5. The pin 61 has a structure of a limiting portion 611 and a connecting portion 612, and the outer circumferential diameter of the limiting portion 611 is larger than the outer circumferential diameter of the connecting portion 612. It should be noted that, in other embodiments, the outer diameter of the limiting portion 611 is smaller than the outer diameter of the connecting portion 612, and the limiting cavity in the medium ring 62 is wrapped around the outer surface of the limiting portion 611, so as to limit the axial movement of the limiting portion 611; such a configuration of the media ring 62 that can define the axial movement of the pins 61 is within the scope of the present application. It should be noted that, in other embodiments, a limiting protrusion is disposed on an outer surface of the bottom of the inner conductor 5, a limiting groove matched with the limiting protrusion is disposed in the fixing groove 6111, and the inner conductor 5 extends into the fixing groove 6111, and then the limiting protrusion enters the limiting groove, so as to improve the stability of the fixed connection between the inner conductor 5 and the pin 61. Such a related structure for fixedly connecting the inner conductor 5 with the pin 61 is within the scope of the present application.
In a specific example of this embodiment, the first connecting portion 36 is a connecting screw thread, and the second connecting portion 612 is a screw hole corresponding to the connecting screw thread. The first connecting portion 36 is connected with threads, the second connecting portion 612 is a threaded hole and is used for realizing fixed connection between the copper column 3 and the bottom plate 4, the fixing structure is simple, the fixing is convenient, and the outer conductor formed by fixing can keep a stable working state. It should be noted that, in other embodiments, the first connecting portion 36 and the second connecting portion 612 cooperate with each other to achieve the fixed connection between the copper pillar 3 and the bottom plate 4, which is within the scope of the present application.
The skeleton 1 in this embodiment is formed by processing a polyimide material. The skeleton 1 produced by the polyimide material has light weight, stable dielectric constant and high melting point, and can be suitable for severe space environment.
Example two
The installation method of the cone-controlled column spiral antenna comprises the following steps:
step S1: the copper column penetrates into the first placing cavity 11 through the first opening at the top of the framework and penetrates out from the second opening at the bottom of the framework 1 until the limiting block is contacted with the top of the framework 1, and then the first connecting part 36 at the bottom of the copper column 3 is matched with the second connecting part 612 of the bottom plate 4, so that the copper column 3 and the bottom plate 4 are fixedly connected to form an outer conductor.
Step S2: rotating the bottom plate to align the positioning pin holes on the copper columns with the second positioning holes on the framework, and fixedly connecting the bottom plate 4 with the bottom of the framework 1; referring to fig. 1, specifically, a second positioning hole on a framework is aligned with a positioning pin hole on an outer flange of a copper column in the spiral antenna of the application, a spiral groove at the top end of the framework is aligned with a through hole on a limit block on the copper column, a screw hole is matched on the flange at the bottom of the framework, a screw penetrates through a bottom plate to enter the screw hole on the flange, and the bottom plate and the framework are fixed together, so that the end part of the spiral line is smoothly inserted into the through hole of the limit block of the copper column. It should be noted that, the fixing manner of the base plate and the skeleton in the present application is not limited to the fixing manner proposed in the present embodiment.
Step S3: the spiral line 2 is fixed at the bottom of the framework 1, the other end of the spiral line 2 is wound upwards along the spiral groove 13, enters into the perforation from the top end of the spiral groove 13 to one end face of the limiting block, and penetrates out of the other end of the limiting block to be bent and fixed; in the step S3, the fixing mode of the spiral line 2 and the framework 1 is soldering and fixing, and the fixing mode of the spiral line 2 and the limiting block is soldering and fixing. The spiral line 2 and the framework 1 and the spiral line 2 and the limiting block are fixed through soldering, and can be connected and fixed on a spiral antenna with a small volume.
Step S4: placing the inner conductor 5 in the second placing cavity 33, and fixing each guide post 34 on the limiting block with the top of the inner conductor 5 through a connecting sheet, wherein the bottom of the inner conductor 5 extends out of the bottom plate 4; in step S4, the fixing manner of the connecting piece and the guide post 34 is soldering, and the fixing manner of the connecting piece and the inner conductor 5 is soldering. The connecting piece is fixed with the guide post 34 through soldering, the stability of connection is kept, meanwhile, the electric connection is kept, the connecting piece is fixedly connected with the inner conductor 5 through soldering, and the stability of connection is kept, and meanwhile, the electric connection is kept. The installation method of the spiral antenna is simple in installation, high in installation efficiency, convenient to debug, high in stability of the spiral antenna and capable of obtaining accuracy of measurement and control data.
Step S5: the bottom of the inner conductor 5 is inserted into the pin 61, and two parts of inner medium rings 62 are combined and wrapped on the outer surface of the pin 61, so that the limiting part 611 of the pin 61 is positioned in the fixed groove 6111 of the inner medium ring 62;
step S6: the socket 63 is fitted over the outer surface of the inner medium ring 62, the movement of the inner medium ring 62 is restricted, and the socket 63 is fixed to the base plate 4. Specifically, in the step, the inner medium ring is divided into a left part and a right part, and the left part and the right part are combined and wrapped on the outer surface of the contact pin in the process of being connected with the contact pin, and the limiting part is positioned in the limiting cavity.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the specific embodiments described above, and that various changes or modifications or combinations of one or more of the above-described embodiments may be made by those skilled in the art without affecting the spirit of the application, within the scope of the claims. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (14)
1. The small measurement and control cone column spiral antenna is characterized by comprising a framework, a spiral line, a conductor and a connecting device;
the outer surface of the framework is provided with a spiral groove for installing the spiral line, a first placing cavity is arranged in the framework, a first opening is formed in the first placing cavity and the top of the framework, and a second opening is formed in the first placing cavity and the bottom of the framework;
the conductor comprises an outer conductor and an inner conductor, the outer conductor comprises a copper column and a bottom plate, the copper column is arranged in the first placing cavity, a second placing cavity for axially placing the inner conductor is arranged in the copper column, a first connecting part is arranged at the bottom of the copper column, a second connecting part matched with the first connecting part is arranged on the bottom plate, a first through hole communicated with the second placing cavity is formed in the bottom plate, the bottom plate is fixed with the framework through a fastener, the inner conductor is arranged in the second placing cavity, and the inner conductor is electrically connected with the outer conductor;
the spiral line is arranged in the spiral groove, one end of the spiral line is arranged at the bottom of the framework, and the other end of the spiral line is fixed at the top of the framework after being wound around the outer conductor;
the connecting device is arranged on the bottom plate and used for limiting the axial movement of the inner conductor;
the copper column penetrates into the first placing cavity through the first opening at the top of the framework and penetrates out of the second opening at the bottom of the framework until the limiting block is contacted with the top of the framework, and then the first connecting part at the bottom of the copper column is matched with the second connecting part of the bottom plate, so that the copper column and the bottom plate are fixedly connected to form an outer conductor;
the bottom plate is rotated to align the positioning pin holes on the copper columns with the second positioning holes on the framework, and then the bottom plate is fixedly connected with the bottom of the framework;
one end of the spiral line is fixed at the bottom of the framework, the other end of the spiral line is wound upwards along the spiral groove, enters into the through hole from the top end of the spiral groove to one end face of the limiting block, and penetrates out of the other end of the limiting block to be bent and fixed;
the inner conductor is placed in the second placing cavity, each guide post on the limiting block is fixed with the top of the inner conductor through a connecting sheet, and the bottom of the inner conductor extends out of the bottom plate;
the bottom of the inner conductor is inserted into the contact pin, and two parts of inner medium rings are combined and wrapped on the outer surface of the contact pin, so that the limiting part of the contact pin is positioned in the fixing groove of the inner medium ring;
the socket is sleeved on the outer surface of the inner medium ring, limits the movement of the inner medium ring and fixes the socket on the bottom plate.
2. The small measurement and control cone-column spiral antenna according to claim 1, wherein the top of the outer conductor is provided with a limiting part, the limiting part comprises a limiting block arranged on the top of the outer conductor, and the limiting block is provided with a through hole for the spiral line to pass through.
3. The small measurement and control cone-pole spiral antenna according to claim 2, wherein the limiting blocks comprise a first limiting block and a second limiting block which are symmetrically arranged at the top of the outer conductor, the penetrating holes comprise a first penetrating hole and a second penetrating hole, the first penetrating hole is formed in the first limiting block, two end openings of the first penetrating hole are respectively formed in two adjacent outer surfaces of the first limiting block, the second penetrating hole is formed in the second limiting block, and two end openings of the second penetrating hole are respectively formed in two adjacent outer surfaces of the second limiting block.
4. A small measurement and control cone-column spiral antenna according to claim 3, wherein a plurality of guide columns are arranged on the first limiting block/the second limiting block, and each guide column is connected with the top of the inner conductor through a connecting sheet.
5. The small measurement and control cone column spiral antenna according to claim 1, wherein a first positioning hole for fixing one end of a spiral line is formed in the framework where the bottom end of the bottom of the spiral groove is located, and a second positioning hole for fixing a copper column is formed in the top of the framework.
6. The small measurement and control cone-column spiral antenna according to claim 5, wherein an outer flange is arranged on the outer surface of the copper column, a positioning pin hole is arranged on the outer flange, and a positioning pin penetrates through the framework and stretches into the positioning pin hole to limit the relative position of the copper column and the framework support.
7. The small measurement and control cone-column spiral antenna according to claim 1, wherein a stay ring is arranged between the inner conductor and the outer conductor, and the inner conductor and the stay ring are of an integral structure.
8. The small measurement and control cone-column spiral antenna according to claim 1, wherein the connecting device comprises a socket, a contact pin and a medium ring, the socket is fixed on the bottom plate through a bolt, one end of the contact pin is provided with a limiting part fixedly connected with an inner conductor, the medium ring is installed in the socket, and the medium ring is provided with a limiting cavity for limiting the axial movement of the limiting part.
9. The small measurement and control cone-column spiral antenna according to claim 8, wherein the pin comprises a connecting portion and a limiting portion, the outer peripheral diameter of the limiting portion is larger than that of the connecting portion, and a fixing groove for fixing the inner conductor is formed in the limiting portion.
10. The small measurement and control cone-column helical antenna according to claim 1, wherein the first connecting portion is a connecting thread, and the second connecting portion is a threaded hole corresponding to the connecting thread.
11. The small measurement and control tapered helical antenna of claim 1, wherein said skeleton is formed from polyimide material.
12. The method for installing the small measurement and control conical column spiral antenna is characterized by comprising the following steps of:
step S1: the copper column penetrates into the first placing cavity through the first opening at the top of the framework and penetrates out of the second opening at the bottom of the framework until the limiting block is contacted with the top of the framework, and then the first connecting part at the bottom of the copper column is matched with the second connecting part of the bottom plate, so that the copper column and the bottom plate are fixedly connected to form an outer conductor;
step S2: rotating the bottom plate to align the positioning pin holes on the copper columns with the second positioning holes on the framework, and fixedly connecting the bottom plate with the bottom of the framework;
step S3: one end of the spiral line is fixed at the bottom of the framework, the other end of the spiral line is wound upwards along the spiral groove, enters into the through hole from the top end of the spiral groove to one end face of the limiting block, penetrates out of the bending hole from the other end of the limiting block and is fixed;
step S4: placing the inner conductor in a second placing cavity, wherein each guide post on the limiting block is fixed with the top of the inner conductor through a connecting sheet, and the bottom of the inner conductor extends out of the bottom plate;
step S5: the bottom of the inner conductor is inserted into the contact pin, and two parts of inner medium rings are combined and wrapped on the outer surface of the contact pin, so that the limiting part of the contact pin is positioned in the fixing groove of the inner medium ring;
step S6: the socket is sleeved on the outer surface of the inner medium ring, the movement of the inner medium ring is limited, and the socket is fixed on the bottom plate.
13. The method for installing a small measurement and control cone-column spiral antenna according to claim 12, wherein in the step S3, the spiral line and the framework are fixed in a soldering manner, and the spiral line and the limiting block are fixed in a soldering manner.
14. The method for installing a small measurement and control tapered-column helical antenna according to claim 12, wherein in the step S4, the fixing manner of the connecting piece and the guide post is soldering, and the fixing manner of the connecting piece and the inner conductor is soldering.
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