WO2021212508A1

WO2021212508A1 - Antenna and manufacturing method therefor, and electronic device

Info

Publication number: WO2021212508A1
Application number: PCT/CN2020/086809
Authority: WO
Inventors: 高其珍; 杨华; 庄德浩; 答盼
Original assignee: 海能达通信股份有限公司
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2021-10-28

Abstract

The present application discloses an antenna and a manufacturing method therefor, and an electronic device. The antenna comprises: a support member, the support member comprising a main body portion and a fitting portion provided at one end of the main body portion; a metal pipe, one end of the metal pipe being fixedly connected to the fitting portion, and the other end extending to the end away from the support member; and a spiral member, the spiral member being sleeved on the support member and the metal pipe, the spiral member comprising a first spiral portion and a second spiral portion connected to each other, the first spiral portion being sleeved on the main body portion, the second spiral portion being sleeved on the metal pipe and not in contact with the metal pipe, and the end of the second spiral portion away from the first spiral portion being connected to a feed point, wherein the spiral member is used for receiving or sending a first frequency signal, and the second spiral portion is coupled to the metal pipe so as to receive or send a second frequency signal. By means of the described method, in the present application, space coupling is formed by providing a metal pipe and a second spiral portion, so as to produce a GPS frequency or a higher frequency without affecting the performance of a dominant frequency of an antenna, thereby achieving better antenna functions.

Description

Antenna and its manufacturing method and electronic equipment

【Technical Field】

This application relates to the field of antenna technology, in particular to an antenna, a manufacturing method thereof, and electronic equipment.

【Background technique】

At present, in the field of mobile communication products, dual-frequency antennas suitable for mobile communication products are UHF (Ultra High Frequency) + GPS (Global Positioning System) or VHF (Very High Frequency) + GPS corresponding antenna performance realization methods Most of them use double helix structure or double pitch helix plus top needle resonant structure.

However, both of the above two antenna structures have certain shortcomings. For example, when the antenna structure with dual pitch and pin coupling at the top is adopted, the difficulty of debugging the antenna will increase, and when the performance of receiving and transmitting GPS signals is checked When optimized, it will affect the reception and transmission of its main frequency signal, and increase the difficulty of processing the antenna, and increase the production failure rate. Among them, when the double spiral spring antenna structure is used, the appearance of the overall antenna will change. It is thick, and while improving the pitch of the outer spiral, it will also affect the bandwidth and performance of the main antenna.

[Summary of the invention]

The main technical problem to be solved by this application is to provide an antenna, a manufacturing method thereof, and an electronic device to optimize the performance of the antenna for receiving and sending GPS signals while avoiding adverse effects on the antenna's main frequency signal reception and transmission performance.

In order to solve the above technical problems, a technical solution adopted in this application is to provide an antenna, wherein the antenna includes: a support, the support includes a main body part and a matching part arranged at one end of the main body part; a metal tube, one end of the metal tube It is fixedly connected with the mating part, and the other end extends to the end away from the support; the screw is sleeved on the support and the metal pipe, and the screw includes a first spiral part and a second spiral part that are connected. The second spiral part is sheathed in the main body part, the second spiral part is sheathed in the metal tube and is not in contact with the metal tube. A frequency signal, the second spiral part is coupled with the metal tube for receiving or sending a second frequency signal.

Wherein, the main body part is provided with a spiral groove, and the first spiral part is arranged in the spiral groove.

Wherein, the spiral element is a spring structure with a uniform inner diameter in a spiral shape, and the pitch of the first spiral part is smaller than the pitch of the second spiral part.

Wherein, the first spiral portion and/or the second spiral portion include at least two spiral portions with different pitches.

Among them, the first frequency signal is a VHF or UHF signal, and the second frequency signal is a GPS signal or UHF signal.

Wherein, the area of the cross section of the metal tube is smaller than the area of the cross section of the second spiral part, the length of the metal tube is smaller than the length of the second spiral part, and is not connected to the feed point.

In order to solve the above technical problems, another technical solution adopted by the present application is to provide a method for manufacturing an antenna, wherein the manufacturing method includes: forming a mating part at one end of the support to obtain a body part and a mating part. Support; connect one end of the metal pipe to the mating part and extend to the end away from the support; sleeve the spiral piece from the other end of the support to the support and the metal pipe in turn; wherein, the part that is sleeved in the main body It is the first spiral part, the part sleeved on the metal tube is the second spiral part, and the second spiral part is not in contact with the metal tube. The spiral element is used to receive or send the first frequency signal, and the second spiral part is coupled with the metal tube. , To receive or send the second frequency signal.

Wherein, the step of forming a mating part at one end of the support to obtain a support including a main body and a mating part includes: forming a mating part at one end of the support, and further outside the main body at the other end of the support. Spiral concave grooves are drawn on the surface to obtain a support including a main body part with a spiral concave groove and a mating part; the step of sequentially sheathing the screw on the support and the metal pipe from the other end of the support includes: The spiral member is wound and sleeved on the main body part along the spiral groove, and further extends in the direction of the metal tube to sleeve the metal tube.

Wherein, the step of sequentially sheathing the spiral member on the support member and the metal tube from the other end of the support member includes: spirally winding the spiral member on the support member from the other end of the support member, and increase the pitch of the spiral to further Extend spirally in the direction of the metal tube so as to be sleeved on the metal tube.

In order to solve the above technical problem, another technical solution adopted in this application is to provide an electronic device, wherein the electronic device includes the antenna as described in any one of the above.

The beneficial effect of the present application is: different from the prior art, an antenna, a manufacturing method thereof, and an electronic device in the present application, wherein the antenna includes a support member, the support member includes a main body part and one end of the main body part. The fitting part; a metal tube, one end of the metal tube is fixedly connected with the fitting part, and the other end extends away from the end of the support member; a spiral member, the spiral member is sleeved on the support member and the metal tube, the spiral member includes a first connected The spiral portion and the second spiral portion, the first spiral portion is sleeved on the main body, the second spiral portion is sleeved on the metal tube, and is not in contact with the metal tube, and the end of the second spiral portion away from the first spiral portion is connected to the feeding point , Wherein the spiral element is used for receiving or sending the first frequency signal, and the second spiral part is coupled with the metal tube for receiving or sending the second frequency signal. In the above manner, the present application forms a spatial coupling between the metal tube and the second spiral part to form a GPS frequency or a higher frequency without affecting the performance of the antenna to send and receive the main frequency signal, thereby achieving a better antenna function, and the antenna The overall structure is simpler and easier to mass produce.

【Explanation of the drawings】

FIG. 1 is a schematic structural diagram of an embodiment of the antenna of the present application;

FIG. 2 is a detailed structural diagram of the supporting member of the antenna in FIG. 1;

FIG. 3 is a schematic flowchart of the first embodiment of the manufacturing method of the antenna according to the present application;

4 is a schematic flowchart of a second embodiment of the method for manufacturing an antenna according to the present application;

FIG. 5 is a schematic flowchart of a third embodiment of the method for manufacturing an antenna according to the present application;

Fig. 6 is a schematic structural diagram of an embodiment of an electronic device of the present application.

【Detailed ways】

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Please refer to FIGS. 1 and 2. FIG. 1 is a schematic structural diagram of an embodiment of the antenna of the present application, and FIG. 2 is a detailed structural schematic diagram of the supporting member of the antenna in FIG. In this embodiment, the antenna 1 includes a supporting member 10, a metal tube 20 and a spiral member 30.

Wherein, the support 10 is an insulator, which further includes a main body 110 and a mating part 120, and the mating part 120 is provided at one end of the main part 110 and forms the support 10 with an integral structure with the main part 110.

Optionally, both the main body 110 and the mating part 120 may have a cylindrical structure, and the cross-sectional area of the mating part 120 is smaller than the cross-sectional area of the main body 110. In other embodiments, the mating part 120 may also be a rectangular parallelepiped. The structure is not limited in this application.

Wherein, one end of the metal tube 20 is sleeved on one end of the mating portion 120 to be fixedly connected to the mating portion 120, and the other end of the metal tube 20 extends to an end away from the supporting member 10.

Optionally, the metal tube 20 may be a hollow copper tube or steel tube, and its inner diameter is slightly larger than the outer diameter of the mating portion 120, and is matched with the mating portion 120 to achieve a fixed connection between the two, for example, mating The portion 120 may be a cylindrical structure including a threaded groove, and the inside of one end of the metal pipe 20 is formed with a threaded structure that cooperates with the threaded groove, so that one end of the metal pipe 20 can be threaded with the mating portion 120, and In other embodiments, the metal tube 20 can also be directly welded or sleeved on one end of the matching portion 120, which is not limited in this application.

Further, the spiral member 30 may be a spiral spring structure with a uniform inner diameter to be wound and sleeved on the main body portion 110 of the support member 10, and extends to an end close to the metal tube 20 so as to be completely sleeved on the metal tube 20. , But not in direct contact with the metal tube 20. The spiral member 30 further includes a first spiral portion 310 and a second spiral portion 320 connected to each other, wherein the first spiral portion 310 is a section of spiral structure sleeved outside the main body portion 110, and the second spiral portion 320 is a sleeve. A spiral structure is provided on the periphery of the metal tube 20, and the end of the second spiral portion 320 away from the first spiral portion 310 is further connected to the feed point 40 that can be electrically connected to the corresponding electronic device. Among them, the spiral member 30 is preferably an integral structure.

It can be understood that the spiral member 30 can be used to receive or transmit a first frequency signal, and the second spiral part 320 can be spatially coupled with the metal tube 20 for receiving or transmitting a second frequency signal. Among them, the first frequency signal may be a VHF or UHF signal, and the second frequency signal may be a GPS signal or an ultra-high frequency signal, that is, the antenna 1 can realize radio wave signals, broadcast and television station signals through the screw 30. As well as the reception and transmission of communication channel signals for aviation and navigation, and the spatial coupling of the second spiral part 320 with the metal tube 20 to present capacitance, the antenna 1 as a whole forms an LC circuit and generates two resonant frequencies. One is the main frequency of the antenna (UHF or VHF), and the other is the GPS frequency or higher, that is, the antenna 1 can realize the GPS signal or ultra-high frequency coupling through the spatial coupling of the second spiral part 320 and the metal tube 20. The reception and transmission of the frequency signal does not affect the performance of the antenna 1 to send and receive the main frequency signal, thereby achieving a better antenna function.

Optionally, the pitch of the first spiral portion 310 is smaller than the pitch of the second spiral portion 320, and the pitch of the second spiral portion 320 can be specifically 1.5-3 times that of the first spiral portion 310, so as to ensure that the second spiral portion The portion 320 is spatially coupled with the metal tube 20 to form a second frequency signal that does not interfere with the performance of the spiral member 30 to transmit and receive the first frequency signal. The pitch can be understood as the distance between every two arc-shaped structures in the spring-like structure. The spacing between.

Further, the first spiral portion 310 and the second spiral portion 320 may also include at least two spiral portions with different pitches, or one of the first spiral portion 310 and the second spiral portion 320 may include at least two segments. Spiral parts with different pitches can receive and send signals in a variety of frequency bands. The greater the pitch of the spiral part, the greater the frequency of the signal that can be transmitted and received, so the first can be set reasonably according to needs. The pitch of the helical part 310 and the second helical part 320 is to realize the transmission and reception of signals of different frequency bands, and the frequency band in which the antenna 1 can transmit and receive signals can be adjusted by adjusting the pitch of the first helical part 310 and the second helical part 320 Scope.

Optionally, the main body 110 of the support 10 is provided with a spiral groove, wherein the first spiral portion 310 can be wound in the spiral groove, and the main body 110 of the support 10 does not engrave the spiral groove. The convex portion is flush with the outer surface of the first spiral portion 310 or exceeds the outer surface of the first spiral portion 310.

Optionally, the cross-sectional area of the metal tube 20 is smaller than the cross-sectional area of the second spiral part 320, and the length of the metal tube 20 is less than the length of the second spiral part 320, so that the metal tube 20 is completely disposed in the second spiral part. In the space formed by 320, the metal pipe 20 is not connected to the feeding point 40. It can be understood that the shorter the length of the metal tube 20, the spatially coupled with the second spiral part 320, the higher the upper limit of the frequency range of the GPS signal or UHF signal formed, and the The length of the metal tube 20 is set to realize the superior performance of the antenna 1 for receiving and sending GPS signals without affecting the performance of the antenna 1 for sending and receiving the main frequency signal, and the implementation method is simple and the implementation cost is low.

Based on the general inventive concept, the present application also provides a manufacturing method of an antenna. Please refer to FIG. 3, which is a schematic flowchart of the first embodiment of the antenna manufacturing method of the present application. This embodiment includes the following steps:

S310: Fabricate a matching part at one end of the support to obtain a support including a main body and a matching part.

In this embodiment, first, a mating part is formed at one end of the support having a cylindrical structure to obtain a support including a main body part and a mating part, wherein the mating part can be a cylinder or a rectangular parallelepiped structure, and The area of the cross section is smaller than the area of the cross section of the main body of the support.

S320: Connect one end of the metal pipe to the mating part and extend to the end away from the support.

In this embodiment, after the supporting member including the main body portion and the mating portion is formed, a metal tube is further sleeved on the mating portion formed at one end of the supporting member, and the metal tube is directed toward the end of the supporting member away from the supporting member. Extension, wherein the inside of one end of the metal pipe can be formed with a structural style that matches with the outer surface of the mating part, so that the mating part can abut against the inside of one end of the metal pipe to be fixedly connected with the metal pipe.

Optionally, the mating portion may be a cylindrical structure including a threaded groove, and a threaded structure that cooperates with the threaded groove is formed inside one end of the metal pipe, so that one end of the metal pipe can be connected to the mating portion. Realize threaded connection. Wherein, the cross-sectional area of the metal tube is smaller than the cross-sectional area of the second spiral part, and the length of the metal tube is less than the length of the second spiral part, so that the metal tube is completely set in the space formed by the second spiral part, and the metal tube The tube is not connected to the feed point.

S330: The spiral piece is sequentially sleeved on the support piece and the metal tube from the other end of the support piece; wherein the part sleeved on the main body is the first spiral part, and the part sleeved on the metal pipe is the second spiral part, and The second spiral part is not in contact with the metal tube, the spiral member is used for receiving or sending the first frequency signal, and the second spiral part is coupled with the metal tube for receiving or sending the second frequency signal.

In this embodiment, after the metal pipe is sleeved on the mating part at one end of the support, a spiral is further wound and sleeved on the support and the metal pipe from the other end of the support in turn.

Wherein, the part of the spiral element sheathed on the main body of the support is a first spiral part, and the part of the structure sheathed on the periphery of the metal tube is a second spiral part, and the second spiral part does not directly contact the metal tube. It is understandable that the spiral member can be used to receive or send the first frequency signal, and the second spiral part can be spatially coupled with the metal tube for receiving or sending the second frequency signal. The first frequency signal may specifically be a VHF or UHF signal, and the second frequency signal may be a GPS signal or UHF signal.

Different from the prior art, the method for manufacturing an antenna in this application includes: forming a matching part at one end of the support to obtain the main body and the matching part of the support; connecting one end of a metal tube to the matching part, And extend to one end away from the support; the spiral is sequentially sleeved on the support and the metal tube from the other end of the support; wherein the part sleeved on the main body is the first spiral part, which is sleeved on the metal pipe It is the second spiral part, and the second spiral part is not in contact with the metal tube. The spiral member is used for receiving or sending the first frequency signal, and the second spiral part is coupled with the metal tube for receiving or sending the second frequency signal. Through the above method, the overall structure of the antenna fabricated in the present application is simpler, thereby reducing the difficulty of antenna production, improving the straight-through rate of antenna production, and making it easier to mass-produce, and the antenna spiral is fixed by a supporting member. It can effectively prevent the spiral part of the antenna from being stamped and deformed during production, resulting in a decrease in antenna performance and an increase in defective products, resulting in an increase in the cost of the antenna, so as to better ensure the consistency of the antenna performance, improve the production efficiency of the antenna, and Reduce the defective rate of antenna production.

Please refer to FIG. 4, which is a schematic flowchart of a second embodiment of the antenna manufacturing method according to the present application. It is understandable that the manufacturing method of the antenna in this embodiment is a schematic flow diagram of a detailed implementation of the manufacturing method of the antenna in FIG. 3, and includes the following steps:

S410: A mating part is formed at one end of the support, and a spiral recess is carved on the outer surface of the main body to obtain the main part and the mating part of the support with a spiral recess.

In this embodiment, a mating part is first made at one end of the support, and then a spiral recess is depicted on the outer surface of the main body at the other end of the support, so as to obtain a spiral recess. The supporting part of the main body and the mating part, wherein the mating part may be a cylinder or a rectangular parallelepiped structure, and the cross-sectional area of the supporting part is smaller than the cross-sectional area of the main body of the supporting part.

S420: Connect one end of the metal pipe to the mating part and extend to the end away from the support.

Among them, this step is the same as S320 in FIG. 3. For details, please refer to S320 and related text descriptions, which will not be repeated here.

S430: Wrap the spiral member along the spiral groove and sleeve it on the main body, and further extend in the direction of the metal tube to be sleeved on the metal tube; wherein the part sleeved on the main body is the first spiral part, and the sleeve is sleeved. The part of the metal tube is the second spiral part, and the second spiral part is not in contact with the metal tube. The spiral member is used for receiving or sending the first frequency signal, and the second spiral part is coupled with the metal tube for receiving or sending the first frequency signal. Two frequency signals.

In this embodiment, after manufacturing a supporting member including a main body portion with a spiral groove and a mating portion, and connecting one end of the metal pipe to the mating portion of the supporting member, a spiral member is further supported along The spiral groove of the main body of the member extends and winds in the direction of the metal tube, so as to be sheathed and wound in the spiral groove of the main body of the support member, and is further sleeved on the metal tube.

Wherein, the part of the spiral element sheathed on the main body is the first spiral part, and the part sheathed on the periphery of the metal tube is the second spiral part, and the second spiral part is not in direct contact with the metal tube. It is understandable that the spiral member can be used to receive or transmit the first frequency signal, and the second spiral part can be spatially coupled with the metal tube for receiving or transmitting the second frequency signal. And the first frequency signal may be a VHF or UHF signal, and the second frequency signal may be a GPS signal or UHF signal.

Please refer to FIG. 5, which is a schematic flowchart of the third embodiment of the antenna manufacturing method according to the present application. It is understandable that the manufacturing method of the antenna in this embodiment is a schematic flow diagram of another detailed embodiment of the manufacturing method of the antenna in FIG. 3, and includes the following steps:

Among them, S510 and S520 in FIG. 5 are the same as S310 and S320 in FIG. 3 respectively. For details, please refer to FIG. 3 and related text descriptions, which will not be repeated here. After S520, the following steps are further included:

S530: Wrap the spiral member from the other end of the support member on the support member, increase the pitch of the spiral, and further extend spirally in the direction of the metal tube to be sheathed in the metal tube; The part is the first spiral part, and the part sheathed in the metal tube is the second spiral part, and the second spiral part is not in contact with the metal tube. The spiral member is used to receive or send the first frequency signal. The second spiral part is connected to the metal tube. Coupled for receiving or sending a second frequency signal.

In this embodiment, after manufacturing a supporting member including a main body portion with a spiral groove and a mating portion, and connecting one end of the metal pipe to the mating portion of the supporting member, a spiral member is further supported along The spiral groove of the main body of the piece extends and winds in the direction of the metal tube to be sleeved on the main body of the support element, and the spiral pitch of the spiral element is increased to further sleeve the metal pipe.

Wherein, the part of the spiral element sheathed on the main body is the first spiral part, and the part sheathed on the metal tube is the second spiral part, and the second spiral part does not directly contact the metal tube. It is understandable that the pitch of the first spiral part that is finally formed is smaller than the pitch of the second spiral part. The spiral element can be used to receive or send the first frequency signal, and the second spiral part can be realized with a metal tube. Spatial coupling for receiving or transmitting the second frequency signal. And the first frequency signal may be a VHF or UHF signal, and the second frequency signal may be a GPS signal or UHF signal.

In another embodiment, after fabricating a support including a main body portion with a spiral groove and a matching portion, and connecting one end of the metal pipe to the matching portion of the support, a spiral member The spiral groove of the main body of the support is extended and wound in the direction of the metal tube, so as to be sleeved on the main body of the support. After the spiral pitch of the spiral is increased by 1.5-3 times, it is further sleeved on the metal On the tube, that is, the pitch of the second spiral part finally obtained is 1.5-3 times the pitch of the first spiral part.

Based on the general inventive concept, this application also provides an electronic device. Please refer to FIG. 6, which is a schematic structural diagram of an embodiment of the electronic device of this application. Wherein, the electronic device 60 is provided with the antenna 610 as described above.

Different from the state of the art, an antenna, a manufacturing method thereof, and an electronic device in the present application, wherein the antenna includes a support member, the support member includes a main body part and a matching part provided at one end of the main body part; a metal tube One end of the metal pipe is fixedly connected with the mating part, and the other end extends to the end away from the support; the spiral piece is sleeved on the support and the metal pipe, and the spiral piece includes a first spiral portion and a second spiral connected to each other. Part, the first spiral part is sleeved on the main body part, the second spiral part is sleeved on the metal tube and is not in contact with the metal tube, and the end of the second spiral part away from the first spiral part is connected to the feeding point, wherein the spiral part is used for For receiving or sending the first frequency signal, the second spiral part is coupled with the metal tube for receiving or sending the second frequency signal. In the above manner, the present application forms a spatial coupling between the metal tube and the second spiral part to form a GPS frequency or a higher frequency without affecting the performance of the antenna to send and receive the main frequency signal, thereby achieving a better antenna function, and the antenna The overall structure is simpler and easier to mass produce.

The above are only implementations of this application, and do not limit the scope of this application. Any equivalent structure or equivalent principle transformation made using the content of the description and drawings of this application, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of this application.

Claims

An antenna, characterized in that the antenna comprises:

A support, the support includes a main body part and a matching part provided at one end of the main body part;

A metal tube, one end of the metal tube is fixedly connected to the matching portion, and the other end extends to an end away from the support;

A spiral element, the spiral element is sleeved on the support and the metal tube, the spiral element includes a first spiral portion and a second spiral portion that are connected, and the first spiral portion is sleeved on the The main body part, the second spiral part is sleeved on the metal tube and is not in contact with the metal tube, and the end of the second spiral part away from the first spiral part is connected to the feeding point, wherein the The spiral member is used for receiving or sending a first frequency signal, and the second spiral part is coupled with the metal tube for receiving or sending a second frequency signal.
The antenna according to claim 1, wherein:

The main body portion is provided with a spiral groove, and the first spiral portion is provided in the spiral groove.
The antenna according to claim 2, wherein:

The protruding part of the main body without a spiral groove is flush with the outer surface of the first spiral portion or exceeds the outer surface of the first spiral portion.
The antenna according to claim 1, wherein:

The spiral element is a spring structure with a uniform inner diameter in a spiral shape, and the pitch of the first spiral portion is smaller than the pitch of the second spiral portion.
The antenna according to claim 4, wherein:

The pitch of the second spiral part is 1.5-3 times the pitch of the first spiral part.
The antenna according to claim 1, wherein:

The first spiral portion and/or the second spiral portion include at least two spiral portions with different pitches.
The antenna according to claim 1, wherein:

The first frequency signal is a VHF or UHF signal, and the second frequency signal is a GPS signal or UHF signal.
The antenna according to claim 1, wherein:

The cross-sectional area of the metal tube is smaller than the cross-sectional area of the second spiral part, and the length of the metal tube is smaller than the length of the second spiral part, and is not connected to the feeding point.
The antenna according to claim 8, wherein:

The metal pipe is a hollow copper pipe or steel pipe, and the inner diameter of the metal pipe is larger than the outer diameter of the mating part.
The antenna according to claim 1, wherein:

The supporting member is an insulator.
The antenna according to claim 1, wherein:

The main body part and the mating part are both cylindrical structures, and the cross-sectional area of the mating part is smaller than the cross-sectional area of the main body part.
The antenna according to claim 11, wherein:

The matching portion is a cylindrical structure including a threaded groove, and a threaded structure that cooperates with the threaded groove is formed inside one end of the metal pipe.
An antenna manufacturing method, characterized in that the manufacturing method includes:

A mating part is made at one end of the support to obtain the support including a main body and the mating part;

Connecting one end of the metal pipe to the matching portion and extending to the end away from the support;

The spiral piece is sleeved on the supporting piece and the metal tube from the other end of the supporting piece in turn; wherein the part sleeved on the main body is the first spiral portion, which is sleeved on the metal pipe Part is a second spiral part, and the second spiral part is not in contact with the metal tube, the spiral member is used to receive or send a first frequency signal, and the second spiral part is coupled with the metal tube to Used to receive or send the second frequency signal.
The manufacturing method according to claim 13, wherein the step of forming a mating part at one end of a support to obtain the support including a main body part and the mating part comprises:

The mating portion is made at one end of the support, and a spiral groove is further carved out on the outer surface of the main body portion at the other end of the support, so as to obtain a groove with the spiral groove The supporting member of the main body part and the mating part;

The step of sequentially sheathing the spiral member on the support member and the metal tube from the other end of the support member includes:

The spiral member is wound and sleeved on the main body portion along the spiral groove, and further extends in the direction of the metal tube to sleeve the metal tube.
The manufacturing method according to claim 13, characterized in that, the step of sequentially sheathing the spiral member on the support member and the metal tube from the other end of the support member comprises:

The spiral member is spirally wound on the support member from the other end of the support member, and the pitch of the spiral member is increased to further extend spirally in the direction of the metal tube, so as to be sleeved on the metal tube. Metal tube.
The manufacturing method according to claim 15, wherein the spiral member is spirally wound on the support member from the other end of the support member, and the pitch of the spiral is increased to further The step of spirally extending in the direction of the metal tube so as to be sleeved on the metal tube includes:

The spiral member is spirally wound on the support member from the other end of the support member, and the pitch of the spiral is increased by 1.5-3 times to further extend spirally in the direction of the metal pipe to It is sleeved on the metal tube.
The manufacturing method according to claim 13, wherein:

The first frequency signal is a VHF or UHF signal, and the second frequency signal is a GPS signal or UHF signal.
The manufacturing method according to claim 13, wherein:

The cross-sectional area of the metal tube is smaller than the cross-sectional area of the second spiral part, and the length of the metal tube is smaller than the length of the second spiral part, and is not connected to the feeding point.
The manufacturing method according to claim 13, wherein:

The main body part and the mating part are both cylindrical structures, and the cross-sectional area of the mating part is smaller than the cross-sectional area of the main body part.
An electronic device, characterized in that it comprises the antenna according to any one of claims 1-12.