High-isolation broadband 5G mobile phone antenna

Abstract

The invention relates to the technical field of mobile communication antennas, and discloses a high-isolation broadband 5G mobile phone antenna which comprises an antenna body, one end of the antenna body is rotationally connected with a connecting piece, a knob is arranged at the end, away from the antenna body, of the connecting piece, and an auxiliary fixing assembly is arranged at the end, away from the connecting piece, of the knob. The lower end of the side face of the auxiliary fixing assembly is fixedly connected with a clamp, the end, away from the rotary knob, of the auxiliary fixing assembly is fixedly connected with a mobile phone insertion port, an inner cavity of the antenna body is hollow, a built-in antenna is movably inserted into the inner cavity of the mobile phone insertion port, and an antenna circuit board is fixedly connected into an inner cavity of the mobile phone insertion port. According to the device, the signal receiving and transmitting efficiency is enhanced through the spiral built-in antenna and a movable insertion mode, interference is reduced through the isolation sleeve, high isolation and wide bandwidth performance are achieved, meanwhile, flexible installation and disassembly are facilitated through the detachable design, stable fixation is ensured through cooperative work of the rotary extrusion block and the fixing piece, and the communication stability and flexibility are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile communication antennas, and in particular to a high-isolation broadband 5G mobile phone antenna. Background Art

[0002] High-isolation broadband 5G mobile phone antenna refers to an antenna system designed for 5G smartphones. It combines the characteristics of high isolation and wide bandwidth to meet the complex needs of modern mobile communications. With the rapid development of mobile communication technology, especially the widespread application of 5G technology, smartphones have become an indispensable part of people's daily lives. In complex communication environments, traditional terrestrial communication networks often find it difficult to provide stable and high-speed communication services. In order to overcome this challenge, 5G satellite dual-mode mobile phones came into being. 5G satellite dual-mode mobile phones combine the dual advantages of 5G terrestrial communications and satellite communications to achieve ubiquitous, high-speed and reliable communication coverage.

[0003] However, when such mobile phones are manufactured, they still mostly use built-in antennas. The design of built-in antennas must take into account the aesthetics, portability and versatility of the mobile phone. However, this also sacrifices the high isolation and wide bandwidth performance of the antenna in a specific frequency band to a certain extent. In special places with remote geographical locations, complex terrain, dense traffic or extremely high communication needs, their performance is still limited by the performance of the built-in antenna of the mobile phone. To a certain extent, the high isolation and wide bandwidth performance of the antenna in a specific frequency band are sacrificed, and good communication performance cannot be guaranteed. For this reason, we propose a high-isolation broadband 5G mobile phone antenna. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a high-isolation broadband 5G mobile phone antenna to solve the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-isolation broadband 5G mobile phone antenna, comprising an antenna body, one end of the antenna body is rotatably connected to a connector, the end of the connector away from the antenna body is provided with a knob, the end of the knob away from the connector is provided with an auxiliary fixing component, the lower end of the side of the auxiliary fixing component is fixedly connected to a clip, the end of the auxiliary fixing component away from the knob is fixedly connected to a mobile phone plug interface, the inner cavity of the antenna body is hollow and a built-in antenna is movably plugged in, the inner cavity of the mobile phone plug interface is fixedly connected to an antenna circuit board, and also includes:

[0008] A connecting assembly, which is arranged between the connecting piece and the auxiliary fixing assembly and is used for connecting the connecting piece, the knob and the auxiliary fixing assembly;

[0009] The interface fixing structure is arranged in the inner cavity of the mobile phone plug-in interface and the auxiliary fixing component, and is used to fix the interface after the device is inserted.

[0010] Preferably, one end of the built-in antenna close to the connector is spiral-shaped, and one end of the built-in antenna away from the connector is fixedly sleeved with an antenna isolation sleeve.

[0011] Preferably, the connecting assembly includes an annular socket, a connecting sleeve and a rotating sleeve, the connecting piece is fixedly connected to the side of the connecting piece away from the antenna body, the inner cavity of the auxiliary fixing assembly is hollow to form an annular socket, the end of the connecting sleeve away from the antenna body is movably inserted in the annular socket and extends into the inner cavity of the mobile phone plug interface, the outer side surface of the end of the connecting sleeve away from the connecting piece is fixedly connected to the inner wall of the mobile phone plug interface, a threaded groove is provided on the outer side surface of the connecting sleeve, the knob is threadedly connected to the side of the connecting sleeve, and the knob is fixedly connected to the side of the connecting piece.

[0012] Preferably, the area of ​​the annular socket is larger than the inner cavity area of ​​the auxiliary fixing component, the clip is L-shaped and has a hollow structure at the bottom, a magnetic plate is fixedly connected in the inner cavity of the clip, and a rubber friction plate is fixedly connected to the upper surface of the lower part of the clip.

[0013] Preferably, the rotating sleeve is movably sleeved on the outer side surface of the connecting sleeve and extends to the junction of the auxiliary fixing component and the inner cavity of the mobile phone plug interface, and is fixedly connected with a rotating extrusion block.

[0014] Preferably, the interface fixing structure includes a movable groove, a rotating extrusion block and a fixed plate entry and exit groove, the inner cavity of the annular socket corresponding to the side of the auxiliary fixing component close to the knob is recessed inward to form a circular mounting groove, and six movable grooves distributed in a circular shape and equidistantly are provided on the inner wall of the circular mounting groove, six fixed plate entry and exit grooves corresponding to the movable grooves are provided on the side of the auxiliary fixing component close to the knob, and an extrusion groove is provided on the side of the rotating extrusion block close to the auxiliary fixing component, and the extrusion groove is a hexagonal annular groove.

[0015] Preferably, the rotating extrusion block is movably clamped in the circular mounting groove in the auxiliary fixing assembly, and a movable interlayer is formed between the rotating extrusion block and the inner wall of the circular mounting groove, and six fixing plates equidistantly distributed in a ring shape are movably clamped in the movable interlayer, and multiple fixing plates are fixedly connected to an extrusion block on one side close to the rotating extrusion block, and the six extrusion blocks are respectively movably clamped in the extrusion grooves.

[0016] Preferably, the six fixing plates are fixedly connected to a limiting rod on one side close to the auxiliary fixing component, and the multiple limiting rods are distributed and movably clamped in the movable groove. The ends of the six fixing plates away from the inner wall of the circular mounting groove are fixedly connected to an arc plate, and the multiple arc plates can form a closed circular ring. The ends of the fixing plates away from the inner wall of the circular mounting groove are affixed to the outer surface of the rotating sleeve.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a high-isolation broadband 5G mobile phone antenna, which has the following beneficial effects:

[0019] 1. This high-isolation broadband 5G mobile phone antenna has a unique design. The spiral design of the built-in antenna 7 and its active plug-in method in the antenna body help to enhance the signal reception and transmission efficiency. The antenna isolation sleeve can be used to effectively isolate the reflected waves generated by environmental factors, signal interference and other factors, and limit their impact on the circuit at the output end, thereby ensuring the normal operation of the antenna and enhancing the anti-interference ability of the system. The device not only has high isolation characteristics, but can also effectively reduce mutual interference between signals in different frequency bands and improve signal purity. At the same time, its wide bandwidth design covers a wide range of 5G frequency bands, ensuring good communication performance in different network environments.

[0020] 2. This high-isolation broadband 5G mobile phone antenna is designed to be detachable. Through the coordinated action of the rotating extrusion block, the fixing plate and the extrusion groove, when the antenna is inserted into the mobile phone's RF socket, the fixing plate can be driven to move outward by rotating the knob, thereby pressing against the inner wall of the mobile phone's RF buckle to achieve a tightening effect, ensuring that the antenna can be firmly fixed after being inserted into the mobile phone without loosening or falling off, thereby maintaining good signal transmission performance. It is not only convenient for users to flexibly install and disassemble according to actual needs, but also provides additional signal enhancement options for 5G satellite dual-mode mobile phones. In addition, in scenarios where communication conditions are poor or higher communication stability is required, users can quickly install this external antenna, which significantly improves the communication capabilities of the mobile phone and ensures that they can enjoy stable and high-speed communication services no matter where they are, greatly broadening the application scenarios and user experience of smart phones.

[0021] 3. This high-isolation broadband 5G mobile phone antenna is firmly fixed on the mobile phone through the auxiliary fixing component and the clamp inside it, through the combined action of the magnetic plate and the rubber friction plate, to ensure that the antenna will not shake or shift during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the antenna body of the present invention;

[0024] Figure 3 It is a schematic cross-sectional view of the inner cavity of the antenna body of the present invention;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the connection assembly of the present invention;

[0026] Figure 5 This is a schematic diagram of the split structure of the connection assembly of the present invention;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the card clip of the present invention;

[0028] Figure 7 This is a schematic diagram of the inner cavity structure of the mobile phone plug interface of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the rotary extrusion block of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of multiple fixing plates of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the fixing plate of the present invention.

[0032] In the figure: 1. Antenna body; 2. Connector; 3. Knob; 4. Auxiliary fixing assembly; 5. Clip; 6. Mobile phone plug interface; 7. Built-in antenna; 8. Antenna circuit board; 9. Ring socket; 10. Interface fixing structure; 11. Antenna isolation sleeve; 12. Connecting sleeve; 13. Rotating sleeve; 14. Strip through hole; 15. Moving groove; 16. Rubber friction plate; 17. Rotating extrusion block; 18. Extrusion groove; 19. Fixed plate; 20. Limit rod; 21. Extrusion block; 22. Magnetic plate; 23. Fixed plate entry and exit groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-10A high-isolation broadband 5G mobile phone antenna comprises an antenna body 1, one end of the antenna body 1 is rotatably connected to a connector 2, the end of the connector 2 away from the antenna body 1 is provided with a knob 3, the end of the knob 3 away from the connector 2 is provided with an auxiliary fixing component 4, the lower end of the side of the auxiliary fixing component 4 is fixedly connected to a clip 5, the end of the auxiliary fixing component 4 away from the knob 3 is fixedly connected to a mobile phone plug interface 6, the inner cavity of the antenna body 1 is hollow and a built-in antenna 7 is movably plugged in, and an antenna circuit board 8 is fixedly connected in the inner cavity of the mobile phone plug interface 6, and also includes:

[0035] A connecting component, which is arranged between the connecting member 2 and the auxiliary fixing component 4, and is used for connecting the connecting member 2, the knob 3 and the auxiliary fixing component 4;

[0036] The interface fixing structure 10 is arranged in the inner cavity of the mobile phone plug-in interface 6 and the auxiliary fixing component 4, and is used to fix the interface after the device is inserted.

[0037] The end of the built-in antenna 7 close to the connector 2 is spiral-shaped, and the end of the built-in antenna 7 away from the connector 2 is fixedly sleeved with an antenna isolation sleeve 11. The antenna body 1 is the main structure of the entire antenna and carries all other components. It provides a stable framework so that other components can be assembled together in an orderly manner. The knob 3 is the main interface for user operation. By rotating the knob, the user can control the antenna body or other components. The interface fixing structure (10) is arranged in the inner cavity of the mobile phone plug interface and the auxiliary fixing component. When the antenna is inserted into the mobile phone radio frequency socket, the fixing plate is driven to move outward by rotating the knob, so as to resist the inner wall of the mobile phone radio frequency plug buckle to achieve a tightening effect. It ensures a stable connection between the antenna and the mobile phone and avoids the problem of loosening or falling off. The connecting component is responsible for the stable connection between the connecting component, the knob and the auxiliary fixing component. It ensures that the various components can work together during use and will not loosen or separate.

[0038] Furthermore, the connecting component includes an annular socket 9, a connecting sleeve 12 and a rotating sleeve 13. The connecting member 2 is fixedly connected to the connecting sleeve 12 on one side away from the antenna body 1. The inner cavity of the auxiliary fixing component 4 is hollow to form an annular socket 9. The end of the connecting sleeve 12 away from the antenna body 1 is movably inserted in the annular socket 9 and extends to the inner cavity of the mobile phone socket 6. The outer side surface of the connecting sleeve 12 away from the connecting member 2 is fixedly connected to the inner wall of the mobile phone socket 6. A threaded groove is provided on the outer side surface of the connecting sleeve 12. The knob 3 is threadedly connected to the side surface of the connecting sleeve 12. The side of the knob 3 away from the connecting member 2 is fixedly connected to the rotating sleeve 13. The connecting component realizes a stable connection between the antenna body, the connecting member, the knob and the auxiliary fixing component through the close cooperation of the annular socket 9, the connecting sleeve 12 and the rotating sleeve 13. The connecting sleeve 12 not only serves as a part of the structural connection, but also realizes a threaded connection with the knob 3 through the threaded groove provided on its outer side. This design allows the user to rotate the knob 3 to drive the rotating sleeve 13 to rotate, thereby realizing the locking function of the interface fixing structure. The connecting sleeve 12 extends into the inner cavity of the mobile phone plug interface 6 and is fixed on its inner wall, providing structural support for the stable insertion of the antenna in the mobile phone, ensuring that after the antenna is inserted into the mobile phone and the knob is tightened, the various components can be tightly combined together without loosening or separation.

[0039] The area of ​​the annular socket 9 is larger than the inner cavity area of ​​the auxiliary fixing component 4. The clip 5 is L-shaped and has a hollow structure at the bottom. A magnetic plate 22 is fixedly connected in the inner cavity of the clip 5. A rubber friction plate 16 is fixedly connected to the upper surface of the lower part of the clip 5. The area of ​​the annular socket 9 is larger than the inner cavity area of ​​the auxiliary fixing component 4. This design allows the connecting sleeve 12 to have sufficient insertion space and ensures that there will be no interference during connection. At the same time, this design also provides more operating space and flexibility for the interface fixing structure, so that the fixing plate, extrusion block and other components can be effectively moved and adjusted in the annular socket, thereby achieving a more secure fixing effect. The clip 5 is L-shaped, so that the clip can be more firmly clamped on the back of the mobile phone or other planes. The L-shaped structure increases the contact area between the clip and the mobile phone, improves the fixing effect, and the hollow structure helps to reduce the overall weight. The magnetic plate 22 can use magnetic force to adsorb the back of the mobile phone, further enhancing the fixing effect between the antenna and the mobile phone. Magnetic adsorption can ensure that the antenna will not loosen due to slight vibration or external force during use.

[0040] The rotating sleeve 13 is movably sleeved on the outer surface of the connecting sleeve 12 and extends to the junction of the inner cavity of the auxiliary fixing component 4 and the mobile phone plug interface 6, and is fixedly connected with a rotating extrusion block 17. The rotating extrusion block 17 is fixed at the end of the rotating sleeve 13 and extends to the junction of the inner cavity of the auxiliary fixing component 4 and the mobile phone plug interface 6. When the rotating sleeve 13 rotates, the rotating extrusion block 17 will move accordingly and act on the fixing plate, extrusion block and other components in the interface fixing structure, pushing them to move outward to resist the inner wall of the mobile phone RF buckle, thereby achieving the fastening effect of the antenna. The user only needs to simply rotate the knob to achieve the firm fixation of the antenna through the transmission action of the rotating sleeve 13 and the rotating extrusion block 17, which not only simplifies the operation steps, but also improves the user experience.

[0041] The interface fixing structure 10 includes a movable groove 15, a rotating extrusion block 17 and a fixed plate entry and exit groove 23. The inner cavity of the annular socket 9 corresponding to the side of the auxiliary fixing component 4 close to the knob 3 is recessed inward to form a circular mounting groove. Six movable grooves 15 distributed in a circular shape and at equal intervals are provided on the inner wall of the circular mounting groove. Six fixed plate entry and exit grooves 23 corresponding to the movable grooves 15 are provided on the side of the auxiliary fixing component 4 close to the knob 3. The rotating extrusion block 17 is provided with an extrusion groove 18 on the side close to the auxiliary fixing component 4, and the extrusion groove 18 is a hexagonal annular groove.

[0042] The rotating extrusion block 17 is movably connected in the circular mounting groove in the auxiliary fixing component 4, and a movable interlayer is formed between the rotating extrusion block 17 and the inner wall of the circular mounting groove. Six fixing plates 19 equidistantly distributed in a ring shape are movably connected in the movable interlayer. Multiple fixing plates 19 are fixedly connected with extrusion blocks 21 on one side close to the rotating extrusion block 17. The six extrusion blocks 21 are respectively movably connected in the extrusion grooves 18. The movable grass 15 has six movable grooves 15 equidistantly distributed in a ring shape on the inner wall of the circular mounting groove in the auxiliary fixing component 4. These grooves are used to guide the fixing plate to move horizontally under the action of the rotating extrusion block. An extrusion groove 18 is designed on the side of the rotating extrusion block 17 close to the auxiliary fixing component 4. The extrusion groove is a hexagonal ring groove that matches the extrusion block on the fixing plate. The rotating extrusion block 17 pushes the fixing plate to move outward through its specific shape and motion trajectory. The fixing plate entry and exit groove 23 has six fixing plate entry and exit grooves 23 corresponding to the moving groove 15 on the side of the auxiliary fixing component 4 close to the knob. These grooves allow the fixing plate to partially extend during the movement to resist the inner wall of the mobile phone RF buckle.

[0043] The six fixing pieces 19 are fixedly connected to the limiting rods 20 on one side close to the auxiliary fixing assembly 4, and the plurality of limiting rods 20 are distributed and movably engaged in the moving groove 15. The ends of the six fixing pieces 19 away from the inner wall of the circular mounting groove are fixedly connected to arc plates, and the plurality of arc plates can form a closed loop. The ends of the fixing pieces 19 away from the inner wall of the circular mounting groove are all fitted on the outer surface of the rotating sleeve 13. The side of each fixing piece 19 close to the auxiliary fixing assembly 4 is fixedly connected to the limiting rods 20, and these limiting rods are movably engaged in the moving groove 15 to ensure When pushed by the rotating extrusion block 17, the fixed plate can move horizontally along a predetermined path (i.e., the moving groove 15) without deviating from the direction or twisting. The existence of the limit rod 20 not only limits the moving range of the fixed plate, but also ensures the smoothness and accuracy of the moving process. The ends of the six fixed plates 19 away from the inner wall of the circular mounting groove are fixedly connected with arc plates. When all the fixed plates move inward to the maximum position, these arc plates can be combined to form a closed circular ring, which improves the rigidity and stability of the overall structure and avoids excessive inward contraction.

[0044] Working principle: When the user is in a special place with remote geographical location, complex terrain, dense crowds or extremely high communication demand, and needs to enhance the communication performance of his mobile phone, first insert the mobile phone plug interface 6 into the mobile phone's radio frequency socket, so that the card clip 5 fits on the back of the mobile phone, and the back of the mobile phone is adsorbed by the magnetic plate 22 in the inner cavity of the card clip 5, and the friction between the surface rubber friction plate 16 and the mobile phone is increased to preliminarily fix the device, so that the antenna will not shake or shift during use, further ensuring the stability and reliability of communication. The L-shaped design of the card clip 5 enables it to be firmly clamped on the edge of the mobile phone or other planes, and no matter what state the mobile phone is in, it can ensure that the antenna always maintains a stable position and angle.

[0045] Then, by rotating the knob 3, the knob 3 drives the rotating sleeve 13 to move on the connecting sleeve 12. The rotation of the rotating sleeve 13 drives the rotating extrusion block 17 at the other end to rotate. The rotating extrusion block 17 rotates to squeeze the extrusion block 21 on one side of the fixed plate 19 through the extrusion groove 18 opened on its surface, so that the six extrusion blocks 21 move in the hexagonal extrusion groove 18. Since the limit rod 20 on the other side of the fixed plate 19 is movably inserted in the movable groove 15, the inner wall of the extrusion groove 18 pushes the extrusion block 21 to drive the fixed plate 19 to move outward, so that the six fixed plates 19 move outward through the fixed plate entry and exit grooves 23 and press against the inner wall of the radio frequency buckle of the mobile phone to achieve a tightening effect, which can ensure that the antenna can be firmly fixed after being inserted into the mobile phone without loosening or falling off, so that the antenna can maintain good signal transmission performance and ensure the stability and clarity of communication.

[0046] After the insertion is completed, when the mobile phone needs to send a signal, the digital signal generated by the internal circuit will first be converted into an analog circuit signal by the antenna circuit board 8, and modulated and amplified by the circuit thereon. The amplified circuit signal drives the antenna to generate electromagnetic waves, which are then radiated into space and received by the base station or other communication equipment; when receiving the signal, the antenna isolation sleeve 11 mounted on the built-in antenna 7 can effectively isolate the reflected waves generated by factors such as the environment and signal interference, and limit its impact on the circuit at the output end, thereby ensuring the normal operation of the antenna, enhancing the system's anti-interference ability, and improving the reliability and stability of data transmission.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-isolation broadband 5G mobile phone antenna, comprising an antenna body (1), characterized in that: One end of the antenna body (1) is rotatably connected to a connecting piece (2); one end of the connecting piece (2) away from the antenna body (1) is provided with a knob (3); one end of the knob (3) away from the connecting piece (2) is provided with an auxiliary fixing component (4); a clamp (5) is fixedly connected to the lower end of the side of the auxiliary fixing component (4); one end of the auxiliary fixing component (4) away from the knob (3) is fixedly connected to a mobile phone plug interface (6); the inner cavity of the antenna body (1) is hollow and a built-in antenna (7) is movably plugged in; an antenna circuit board (8) is fixedly connected in the inner cavity of the mobile phone plug interface (6); and further comprises: A connecting component, which is arranged between the connecting member (2) and the auxiliary fixing component (4) and is used for connecting the connecting member (2), the knob (3) and the auxiliary fixing component (4); The interface fixing structure (10) is arranged in the inner cavity of the mobile phone plug interface (6) and the auxiliary fixing component (4) and is used to fix the interface after the device is inserted.

2. A high-isolation broadband 5G mobile phone antenna according to claim 1, characterized in that: The end of the built-in antenna (7) close to the connecting piece (2) is spiral-shaped, and the end of the built-in antenna (7) away from the connecting piece (2) is fixedly sleeved with an antenna isolation sleeve (11).

3. The high-isolation broadband 5G mobile phone antenna according to claim 1, characterized in that: The connecting assembly comprises an annular socket (9), a connecting sleeve (12) and a rotating sleeve (13); the connecting member (2) is fixedly connected to a side of the connecting member (2) away from the antenna body (1); the inner cavity of the auxiliary fixing assembly (4) is hollow to form an annular socket (9); the end of the connecting sleeve (12) away from the antenna body (1) is movably inserted into the annular socket (9) and extends into the inner cavity of the mobile phone plug interface (6); the outer side surface of the end of the connecting sleeve (12) away from the connecting member (2) is fixedly connected to the inner wall of the mobile phone plug interface (6); a threaded groove is provided on the outer side surface of the connecting sleeve (12); the knob (3) is threadedly connected to the side surface of the connecting sleeve (12); and the side of the knob (3) away from the connecting member (2) is fixedly connected to the rotating sleeve (13).

4. A high-isolation broadband 5G mobile phone antenna according to claim 3, characterized in that: The area of ​​the annular socket (9) is larger than the inner cavity area of ​​the auxiliary fixing component (4); the clip (5) is L-shaped and has a hollow structure at the bottom; a magnetic plate (22) is fixedly connected in the inner cavity of the clip (5); and a rubber friction plate (16) is fixedly connected to the upper surface of the lower part of the clip (5).

5. The high-isolation broadband 5G mobile phone antenna according to claim 3, characterized in that: The rotating sleeve (13) is movably sleeved on the outer surface of the connecting sleeve (12) and extends to the junction of the inner cavity of the auxiliary fixing component (4) and the mobile phone plug interface (6), and is fixedly connected to a rotating extrusion block (17).

6. The high-isolation broadband 5G mobile phone antenna according to claim 1, characterized in that: The interface fixing structure (10) comprises a movable groove (15), a rotating extrusion block (17) and a fixed sheet entry and exit groove (23); a circular installation groove is formed by an inward depression in the inner cavity of the annular socket (9) corresponding to the side of the auxiliary fixing component (4) close to the knob (3); six movable grooves (15) are arranged in an annular shape and are equidistantly distributed on the inner wall of the circular installation groove; six fixed sheet entry and exit grooves (23) corresponding to the movable grooves (15) are arranged on the side of the auxiliary fixing component (4) close to the knob (3); and an extrusion groove (18) is arranged on the side of the rotating extrusion block (17) close to the auxiliary fixing component (4); the extrusion groove (18) is a hexagonal annular groove.

7. A high-isolation broadband 5G mobile phone antenna according to claim 6, characterized in that: The rotating extrusion block (17) is movably engaged in a circular mounting groove in the auxiliary fixing assembly (4); a movable interlayer is formed between the rotating extrusion block (17) and the inner wall of the circular mounting groove; six fixing plates (19) equidistantly distributed in an annular shape are movably engaged in the movable interlayer; a plurality of fixing plates (19) are fixedly connected to an extrusion block (21) on one side close to the rotating extrusion block (17); and the six extrusion blocks (21) are movably engaged in the extrusion grooves (18), respectively.

8. The high-isolation broadband 5G mobile phone antenna according to claim 7, characterized in that: The six fixing plates (19) are fixedly connected to a limiting rod (20) on one side close to the auxiliary fixing assembly (4), and the plurality of limiting rods (20) are distributed and movably engaged in the movable groove (15). The ends of the six fixing plates (19) away from the inner wall of the circular installation groove are fixedly connected to an arc plate, and the plurality of arc plates can form a closed circular ring. The ends of the fixing plates (19) away from the inner wall of the circular installation groove are all attached to the outer surface of the rotating sleeve (13).

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