A dual-band antenna structure

Abstract

The application relates to the technical field of antennas, and provides a dual-frequency antenna structure which comprises an antenna oscillator and a mounting base; the mounting base is provided with a mounting groove matched with the antenna oscillator, the antenna oscillator is inserted into the mounting groove, the antenna oscillator comprises a receiving base and at least four groups of tail wings and inserting structures, the receiving base is in the shape of a circular truncated cone, the center of the receiving base is a circle, at least four groups of the inserting structures are connected to the edges of the top surface of the receiving base in a divergent mode and extend out of the receiving base, the tail wings are connected to the inserting structures one by one and extend outwards of the receiving base, the inserting structures and the receiving base are provided with a radio frequency channel which is connected and is arranged in the receiving base, a radio frequency structure is connected in the radio frequency channel, and the radio frequency structure is connected to the tail wings. The application has the effect of expanding the bandwidth and stably connecting.

Description

Technical Field

[0001] This application relates to the field of antenna technology, and in particular to a dual-band antenna structure. Background Technology

[0002] Modern communication systems place increasingly higher demands on antenna performance. Traditional single-frequency antennas, which can only operate in a single frequency band, can no longer meet the equipment's requirements for simultaneous transmission and reception of signals in different frequency bands. Therefore, dual-frequency antennas have been selected. As an important type of multi-frequency antenna, dual-frequency antennas can operate efficiently in two specific frequency bands.

[0003] Some traditional dual-band antenna technologies have obvious limitations, such as insufficient bandwidth performance, difficulty in frequency band adjustment, and problems such as complex structure, high processing difficulty, inconvenient installation, and insufficient installation stability, which affect the user experience. Summary of the Invention

[0004] To address the aforementioned problems, this application provides a dual-band antenna structure.

[0005] The dual-frequency antenna structure provided in this application adopts the following technical solution:

[0006] A dual-band antenna structure includes an antenna element and a mounting base. The mounting base has mounting grooves that match the antenna element, and the antenna element is inserted into the mounting grooves. The antenna element includes a receiving base and at least four sets of tail fins and insertion structures. The receiving base is frustum-shaped, with its center at least four sets of insertion structures radially connected to the edge of the top surface of the receiving base and extending beyond it. The tail fins are connected to the insertion structures one-to-one and extend outward from the receiving base. A communicating radio frequency (RF) channel is formed within the insertion structures and the receiving base, and an RF structure is connected within the RF channel and to the tail fins. When the antenna element is inserted into the mounting groove, the mounting groove has positioning slots corresponding to the at least four sets of insertion structures and communicating ports corresponding to the RF structures. The insertion structures are inserted into the positioning slots, and the RF structures extend outward from the mounting base through the communicating ports.

[0007] By adopting the above technical solution, the antenna vibrator is connected to the radio frequency structure by the tail fin, so that the radio frequency signal is transmitted through the radio frequency structure and the antenna vibrator is excited to generate radiation. The design of at least four tail fins enhances the radiation efficiency of the antenna vibrator, expands the bandwidth, and improves the directivity and gain characteristics of the antenna. The insertion mechanism and the positioning slot ensure the stable installation of the antenna vibrator, avoids the performance degradation caused by vibration, and improves the shock resistance and ring adaptability of the overall structure. At the same time, the antenna vibrator can be rotated according to the frequency band before being inserted into the mounting base, so that the position of the dual frequency can be changed, improving the convenience of frequency band adjustment.

[0008] Optionally, the tail fin includes a vertical arm, a tuning oscillator arm, and a radial oscillator arm; the vertical arm is mounted vertically on the insertion structure; the tuning oscillator arm is mounted on the top of the vertical arm; the radial oscillator arm is mounted on the vertical arm and located between the tuning oscillator arm and the insertion structure, close to the tuning oscillator arm; the length of the tuning oscillator arm is shorter than that of the radial oscillator arm.

[0009] By adopting the above technical solution, the vertical arm provides the installation conditions for the upright state, the radiating dipole arm provides high-frequency current which is converted into electromagnetic waves and radiated outwards, and by installing it close to the tuning dipole arm, the tuning dipole arm is used to suppress harmonic interference. At the same time, the length of the tuning dipole arm is shorter than that of the radiating dipole arm, so that the radiating dipole arm can extend beyond the tuning range of the tuning dipole arm, thereby allowing the radiation after suppressing harmonic interference to diverge beyond the tuning dipole arm and ensure the transmission of the main signal.

[0010] Optionally, the end of the radiating oscillator arm away from the vertical arm is provided with a T-shaped wing.

[0011] By adopting the above technical solution, the T-shaped wing expands to both sides, thereby expanding the radiation range and direction, and increasing the antenna's bandwidth characteristics and radiation capability.

[0012] Optionally, the insertion structure is divided into two types: a high insertion block and a low insertion block. The high insertion block has a low balance block at its bottom, and the radio frequency channel port is located near the low balance block. The low insertion block has a high balance block at its bottom, and the radio frequency channel port is located near the tail fin.

[0013] By adopting the above technical solution, the height of the overall tail fin can be adjusted by using different insertion blocks and balance blocks to improve adaptability.

[0014] Optionally, the height of the high insertion block and the low balance block is equal to the height of the low insertion block and the high balance block.

[0015] By adopting the above technical solution, the overall height of the high insertion block and the low insertion block are consistent, thereby enhancing the antenna bandwidth characteristics and radiation capability, and improving signal transmission efficiency and receiving sensitivity.

[0016] Optionally, the radio frequency channel port of the high insertion block is lower than the radio frequency channel port of the low insertion block, so that the radio frequency structures are staggered.

[0017] By adopting the above technical solution, the overall height of the high insertion block and the low insertion block are the same, and the radio frequency structure is staggered into the corresponding insertion block through the radio frequency channel ports of different heights to form a dual-band antenna. At the same time, the staggered radio frequency structures will not come into contact with each other, so that the frequency will not be affected or interfered with.

[0018] Optionally, the connection between the insertion structure and the positioning groove is an interference fit assembly.

[0019] By adopting the above technical solution, the interference fit assembly method can facilitate installation while providing a stable or secure installation. Furthermore, the insertion structure and positioning groove are provided in at least four sets, which improves the stability of the connection.

[0020] Optionally, the surface of the antenna element is covered with a coating.

[0021] By adopting the above technical solution, after the antenna vibrator is covered with a coating, the coating can be used to weld the tail fin to the insertion structure or the insertion structure to the receiving base, thereby improving the stability of the connection.

[0022] Optionally, the radio frequency channel is filled with a dielectric material.

[0023] By adopting the above technical solution, the role of the medium is to separate electromagnetic waves within the radio frequency structure, preventing electromagnetic waves from interfering with each other within the radio frequency structure.

[0024] Optionally, at least four sets of tail fins are spaced at a predetermined distance, and the center of the receiving base is an empty space.

[0025] By adopting the above technical solution, the RF structure can be installed in the vacant state without being affected by the adjacent tail fins, avoiding frequency interference. At the same time, the vacant space also provides gas circulation, which can accelerate heat dissipation.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The antenna element is connected to the radio frequency structure by the tail fins, allowing the radio frequency signal to be transmitted through the radio frequency structure and exciting the antenna element to generate radiation. The design of at least four sets of tail fins enhances the radiation efficiency of the antenna element, expands the bandwidth, and improves the directivity and gain characteristics of the antenna. The insertion mechanism and the positioning slot ensure the stable installation of the antenna element, avoids the performance degradation caused by vibration, and improves the shock resistance and ring adaptability of the overall structure. At the same time, the antenna element can be rotated according to the frequency band before being inserted into the mounting base, so that the position of the dual frequency can be changed, improving the convenience of frequency band adjustment.

[0028] 2. The vertical arm provides the installation conditions for the upright state, and the radiating dipole arm provides high-frequency current which is converted into electromagnetic waves and radiated outward. By installing it close to the tuning dipole arm, the tuning dipole arm is used to suppress harmonic interference. At the same time, the length of the tuning dipole arm is shorter than that of the radiating dipole arm, so that the radiating dipole arm can extend beyond the tuning range of the tuning dipole arm. This allows the radiation after suppressing harmonic interference to spread beyond the tuning dipole arm and ensure the transmission of the main signal.

[0029] 3. The T-shaped wings expand to both sides, thereby increasing the radiation range and direction, and enhancing the antenna's bandwidth and radiation capability. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the dual-band antenna assembly state in one embodiment of this application;

[0031] Figure 2 This is a first three-dimensional structural diagram of the mounting base in some embodiments of this application;

[0032] Figure 3 This is a three-dimensional structural diagram of the dual-band antenna in a separated state in some embodiments of this application;

[0033] Figure 4 This is a three-dimensional structural schematic diagram of the antenna vibrator in some embodiments of this application;

[0034] Figure 5 This is a schematic diagram of the cross-sectional structure of the antenna vibrator in some embodiments of this application;

[0035] Figure 6 This is a top view schematic diagram of the dual-band antenna in some embodiments of this application;

[0036] Figure 7 This is a bottom-view structural diagram of the dual-band antenna in the separated state in some embodiments of this application;

[0037] Figure 8 This is a schematic cross-sectional view of the mounting base in some embodiments of this application;

[0038] Figure 9 This is a schematic diagram of a second three-dimensional structure of the mounting base in some embodiments of this application;

[0039] The labels in the attached diagram are as follows: 1. Antenna element; 11. Receiving base; 111. Insertion protrusion; 112. Adapter slot; 12. Tail fin; 121. Vertical arm; 122. Tuning oscillator arm; 123. Radiating oscillator arm; 1231. T-wing; 13. Insertion structure; 130. RF channel; 131. High insertion block; 132. Low insertion block; 133. High balance block; 134. Low balance block; 135. Dielectric; 14. RF structure; 15. Empty space; 2. Mounting base; 21. Mounting groove; 211. Concealed groove; 212. Radial clip; 213. Pressing spring; 22. Positioning groove; 221. Arc groove; 23. Connecting port; 24. Mounting bracket; 25. Mounting plate; 251. Snap-fit ​​protrusion; 252. Snap-fit ​​groove; 26. Pivot shaft; 27. Torsion spring. Detailed Implementation

[0040] The following specific examples illustrate the implementation methods of this application. Those skilled in the art can easily understand other advantages and effects of this application from the information disclosed herein. This application can also be implemented or applied through other different specific embodiments, and various details in this application can be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0041] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the application. This application may be embodied in many different forms and is not limited to the embodiments described herein.

[0042] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples represented in this application, as well as features of different embodiments or examples.

[0043] Furthermore, the terms "first" and "second" are used only to indicate an objective and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0044] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0045] The following is in conjunction with the appendix Figure 1 -Appendix Figure 9 This application will be described in further detail below.

[0046] This application discloses a dual-frequency antenna structure.

[0047] A dual-band antenna structure, reference Figure 1 and Figure 2 As shown, the device includes an antenna element 1 and a mounting base 2. The mounting base 2 has a mounting groove 21 that matches the antenna element 1. The antenna element 1 is inserted into the mounting groove 21. The mounting base 2 can be connected to an external mounting point as required. The connection method can be bolt fastening. The mounting base 2 can be set with different shapes and different numbers of mounting grooves 21 according to the requirements. For example, the mounting base 2 can be a rectangular base with several mounting grooves 21 on its top surface to form an antenna array. It can also be a cylindrical base with one mounting groove 21 on its top surface. The shape of the mounting base 2 and the number of mounting grooves 21 are determined according to different requirements. This embodiment and the illustration take a cylindrical base and one mounting groove 21 as an example.

[0048] Before the mounting base 2 is inserted, the antenna element 1 is adjusted in terms of its installation angle and orientation, and then inserted into the mounting groove 21 for fixation and installation. The antenna element 1 is the core component of the antenna, which generates electromagnetic wave radiation through alternating current to realize the conversion between guided waves and space waves.

[0049] refer to Figure 3 As shown, the antenna vibrator 1 includes a receiving base 11 and at least four sets of tail fins 12 and insertion structures 13. The receiving base 11 has an integral frustum-shaped structure, while the tail fins 12 and insertion structures 13 are provided with at least four sets. Taking four sets as an example, with the center of the receiving base 11, the four sets of insertion structures 13 are connected in a divergent manner to the top edge of the receiving base 11 and extend out of the receiving base 11. The four sets of insertion structures 13 are arranged opposite each other to form a cross shape, but the four sets of insertion structures 13 are not connected near the center of the receiving base 11.

[0050] The four sets of tail fins 12 are connected one-to-one with the four sets of insertion structures 13. That is, each insertion structure 13 is equipped with a set of tail fins 12 on its top. After the tail fins 12 are installed, they extend outward from the receiving base 11 to provide electromagnetic wave transmission or reception.

[0051] The insertion structure 13 and the receiving base 11 are provided with a connected radio frequency channel 130. The radio frequency channel 130 is connected to the radio frequency structure 14, and the radio frequency structure 14 is connected to the tail fin 12. The radio frequency structure 14 can be made of coaxial cable or other radio frequency materials. The radio frequency channel 130 is used to confine the radio frequency structure 14 to prevent the radio frequency structure 14 from shifting or falling off.

[0052] When the antenna vibrator 1 is inserted into the mounting groove 21, the mounting groove 21 is provided with positioning grooves 22 corresponding to at least four sets of insertion structures 13 and connecting ports 23 corresponding to the radio frequency structures 14. Taking four sets as an example, the positioning grooves 22 on the inner wall of the mounting groove 21 are provided in four sets, corresponding one-to-one with the insertion structures 13, and the connecting ports 23 at the bottom are provided in four sets, corresponding to the radio frequency structures 14. The number of radio frequency structures 14 can be less than four sets, but not more than four sets, so as to avoid the excess radio frequency structures 14 being unable to pass through the mounting base 2 through the connecting ports 23.

[0053] The four sets of insertion structures 13 are aligned with the four sets of positioning slots 22 and inserted into the positioning slots 22. The radio frequency structure 14 extends outward from the mounting base 2 through the through-port 23. The positioning slots 22 restrict the insertion structure 13. At the same time, depending on the installation position of the tail fin 12, different insertion structures 13 can be inserted into different positioning slots 22 by rotating them, thereby changing the position of the tail fin 12. The position of the through-port 23 also corresponds to the positioning slot 22. No matter how the insertion structure is rotated, there is always a through-port 23 for the radio frequency structure 14 to pass through.

[0054] Specifically, the antenna element 1 is connected to the radio frequency structure 14 by the tail fin 12, so that the radio frequency signal is transmitted through the radio frequency structure 14 and the antenna element 1 is excited to generate radiation. The design of at least four sets of tail fins 12 enhances the radiation efficiency of the antenna element 1, expands the bandwidth, and improves the directivity and gain characteristics of the antenna. The insertion mechanism and the positioning slot 22 ensure that the antenna element 1 is installed stably, avoids the performance degradation caused by vibration, and improves the shock resistance and ring adaptability of the overall structure. At the same time, the antenna element 1 can be rotated according to the frequency band before being inserted into the mounting base 2, so that the position of the dual frequency changes and the frequency band adjustment is more convenient.

[0055] Further reference Figure 3 and Figure 4 As shown, the tail fin 12 includes a vertical arm 121, a tuning oscillator arm 122, and a radiating oscillator arm 123; the vertical arm 121 is installed in the vertical direction on the insertion structure 13, and the connection between the vertical arm 121 and the insertion structure 13 can be welding, and it stands on the top surface of the insertion structure 13.

[0056] The tuning oscillator arm 122 is mounted on top of the vertical arm 121. The function of the tuning oscillator arm 122 is to suppress unwanted harmonics while allowing the main signal to be transmitted, ensuring that the antenna maintains good radiation performance in the operating frequency band and reducing harmonic interference.

[0057] The radiating dipole arm 123 is installed on the vertical arm 121 and located between the tuning dipole arm 122 and the insertion structure 13, close to the tuning dipole arm 122. The radiating dipole arm 123 provides high-frequency current, which is converted into electromagnetic waves and radiated outward. With at least four sets of tail fins 12, i.e., at least four sets of radiating dipole arms 123, the antenna bandwidth characteristics and radiation capability can be enhanced. When installed close to the tuning dipole arm 122, the tuning dipole arm 122 can be used to suppress harmonic interference. At the same time, the length of the tuning dipole arm 122 is shorter than that of the radiating dipole arm 123, so that the radiating dipole arm 123 can extend beyond the tuning range of the tuning dipole arm 122. This allows the radiation after suppressing harmonic interference to diverge beyond the tuning dipole arm 122, ensuring the transmission of the main signal.

[0058] Furthermore, refer to Figure 4 As shown, the radiating arm 123 has a T-shaped wing 1231 at the end away from the vertical arm 121. The T-shaped wing 1231 extends to both sides, thereby expanding the radiation range and direction, and increasing the bandwidth characteristics and radiation capability of the antenna.

[0059] In some embodiments, reference Figure 4 As shown, both the insertion structure 13 and the tail fin 12 are made of metal, preferably aluminum. The insertion structure 13 is divided into two types: a high insertion block 131 and a low insertion block 132. The two types of insertion blocks have different design heights. The end of each type of insertion block near the edge of the receiving base 11 is arc-shaped to fit the arc-shaped inner wall of the positioning groove 22. The bottom of the high insertion block 131 is provided with a low balance block 134, and the RF channel 130 port is located near the low balance block 134. The bottom of the low insertion block 132 is provided with a high balance block 133, and the RF channel 130 port is located near the tail fin 12. The high insertion block 131 is raised by the low balance block 134, and the low insertion block 132 is raised by the high insertion block 131, so that the heights of the two are the same, thereby enhancing the antenna bandwidth characteristics and radiation capability, and improving signal transmission efficiency and receiving sensitivity.

[0060] Further reference Figure 4As shown, the height of the high insertion block 131 and the low balancing block 134 is equal to the height of the low insertion block 132 and the high balancing block 133. That is, when the heights of the two are the same, the extended radio frequency structures 14 will interfere with each other or affect each other. Therefore, the channel opening of the radio frequency channel 130 of the high insertion block 131 is lower than the channel opening of the radio frequency channel 130 of the low insertion block 132, so that the radio frequency structures 14 are staggered to ensure that the radio frequency structure 14 can be inserted into another insertion block. Since this application is a dual-band antenna, there are two radio frequency structures 14. The radio frequency structure 14 extends from the radio frequency channel 130 of one insertion block and is inserted into the radio frequency channel 130 of the other insertion block, so that the tail fins 12 in the opposite positions provide radiation of the same frequency synchronously, forming a dual-band antenna. Therefore, the staggered extended radio frequency structures 14 will not contact each other, so that the frequency will not be affected or interfered with.

[0061] In some embodiments, the connection between the insertion structure 13 and the positioning groove 22 is an interference fit assembly, that is, the groove shape of the positioning groove 22 adopts a dovetail groove. By applying pressure to the insertion structure 13, the insertion structure 13 is inserted into the positioning groove 22 to form an interference fit assembly. This method can facilitate installation while providing stable or secure installation. Both the insertion structure 13 and the positioning groove 22 are provided with at least four sets, which improves the stability of the connection.

[0062] In some embodiments, the surface of the antenna element 1 is covered with a coating. The main function of the coating is to provide mounting for the antenna element 1. When the tail fin 12 is welded to the insertion structure 13 or the insertion structure 13 is welded to the receiving base 11, some metal materials are not easy to weld. For example, when using a lighter aluminum material, it is convenient but cannot provide direct welding. Therefore, after covering with the coating, the tail fin 12 can be welded to the insertion structure 13 or the insertion structure 13 is welded to the receiving base 11, thereby improving the stability of the connection. Secondly, the coating can increase the conductivity of radiation or frequency, making the signal transmission efficiency more stable.

[0063] In some embodiments, reference Figure 5 As shown, the radio frequency channel 130 is filled with a dielectric 135. The dielectric 135 can be made of plastic, preferably polystyrene, engineering plastics, etc. The selection needs to take into account conductivity, mechanical strength and environmental adaptability. After the radio frequency channel 130 is filled with dielectric 135, only the protrusion of the radio frequency structure 14 is left open, while the channel opening of the radio frequency channel 130 is blocked. The function of the dielectric 135 is to separate electromagnetic waves in the radio frequency structure 14 and prevent electromagnetic waves from interfering with each other inside the radio frequency structure 14.

[0064] In some embodiments, reference Figure 6As shown, there is a preset distance between at least four sets of tail fins 12, so that the center of the receiving base 11 is an empty space 15. This empty state allows the radio frequency structure 14 to be installed without being affected by adjacent tail fins 12, avoiding frequency interference. At the same time, the empty space also provides gas circulation, which can provide an accelerated heat dissipation effect.

[0065] In some embodiments, reference Figure 7 and Figure 8 As shown, a mounting bracket 24 and a mounting plate 25 are provided in the mounting groove 21. A pivot shaft 26 bearing is provided on the mounting bracket 24, and a pivot shaft 26 is pivotally connected in the pivot shaft 26 bearing. The mounting plate 25 is connected to the pivot shaft 26, so that the mounting plate 25 can rotate along the pivot shaft 26 bearing through the pivot shaft 26. A communication port 23 is opened on the mounting plate 25. The position of the communication port 23 can be adjusted by rotating the mounting plate 25. The top surface of the mounting plate 25 is provided with at least two snap-fit ​​protrusions 251 and at least two snap-fit ​​grooves 252. A torsion spring 27 is provided on the pivot shaft 26. The two ends of the torsion spring 27 are respectively connected to the mounting plate 25 and the mounting bracket 24, so that the torsional elastic force generated by the torsion spring 27 is applied to the mounting plate 25, so that the mounting plate 25 is rotated through the pivot shaft 26 under the elastic force.

[0066] refer to Figure 8 and Figure 9 As shown, the inner wall of the mounting groove 21 has a concealed groove 211. The concealed groove 211 contains a radial clip 212 and a pressing spring 213. A telescopic rod is connected to the radial clip 212. The pressing spring 213 is sleeved on the telescopic rod and connected to the groove wall of the concealed groove 211. It applies a spring force to the radial clip 212 out of the concealed groove 211. After the radial clip 212 is pushed out of the concealed groove 211, it abuts against the locking protrusion 251, thereby limiting the locking protrusion 251 and preventing the mounting plate 25 from rotating. The side of the radial clip 212 away from the mounting plate 25 is an arc-shaped or wedge-shaped surface to facilitate pressing.

[0067] The bottom surface of the receiving base 11 is provided with an insertion protrusion 111 and an adapter groove 112. When the receiving base 11 is inserted into the mounting groove 21, the receiving base 11 abuts against the radial clip 212. As the receiving base 11 is inserted, the radial clip 212 is pressed back into the concealed groove 211. At the same time, the insertion protrusion 111 can be inserted into the snap-fit ​​groove 252, and the adapter groove 112 is inserted into the snap-fit ​​protrusion 251. This allows the elastic force of the torsion spring 27 to synchronously affect the receiving base 11, making the contact between the receiving base 11 and the mounting plate 25 more stable.

[0068] Specifically, when the antenna vibrator 1 needs to be assembled on the mounting base 2, the insertion structure 13 is aligned with the positioning groove 22. The mounting plate 25 cannot rotate due to the action of the radial clip 212 and the snap-fit ​​protrusion 251, so its position is fixed. The radio frequency structure 14 can be accurately inserted into the communication port 23. Subsequently, as the receiving base 11 is continuously inserted, the radial clip 212 is pressed into the concealed groove 211, and the snap-fit ​​protrusion 251 that abuts against the radial clip 212 is inserted into the adapter groove 112. The insertion protrusion 111 of the receiving base 11 is also inserted into the snap-fit ​​groove 252 at the same time, so that the receiving base 11 is stably connected with the mounting plate 25. At this time, after the mounting plate 25 loses the fixation of the radial clip 212, the elastic force of the torsion spring 27 is applied to the receiving base 11. Through the fixing effect of the insertion structure 13 and the positioning groove 22, the elastic force cannot affect the receiving base 11. At the same time, the elastic force makes the connection between the receiving base 11 and the mounting groove 21 more secure.

[0069] When it is necessary to replace or maintain the antenna vibrator 1, the antenna vibrator 1 needs to be removed from the mounting groove 21. The worker overcomes the elastic force of the torsion spring 27 and pulls the antenna vibrator 1 out of the mounting groove 21. The insertion protrusion 111 of the receiving base 11 separates from the snap-fit ​​groove 252, and the snap-fit ​​protrusion 251 separates from the adapter groove 112. During the pulling process, the radial snap 212 is gradually extended out of the concealed groove 211 by the elastic force of the pressing spring 213 and abuts against the snap-fit ​​protrusion 251 again, restricting the rotation of the mounting plate 25.

[0070] The number of insertion protrusions 111 and the number of snap-fit ​​slots 252 are the same, and they are inserted into each other in a one-to-one correspondence. The number of snap-fit ​​protrusions 251 and the number of adapter slots 112 are the same, and they are inserted into each other in a one-to-one correspondence.

[0071] Further reference Figure 9 As shown, an arc-shaped groove 221 can be opened in the positioning groove 22. The positioning groove 22 and the arc-shaped groove 221 are connected and can be L-shaped. When the insertion structure 13 is inserted into the positioning groove 22, it can rotate along the arc-shaped groove 221, so that the receiving base 11 and the mounting plate 25 also rotate synchronously. After the insertion structure 13 is inserted into the arc-shaped groove 221, the insertion structure 13 is fixed by the groove wall of the arc-shaped groove 221, so that the receiving base 11 cannot be pulled out in the vertical direction. At the same time, it is also subjected to the elastic force of the torsion spring 27 to make the insertion structure 13 press against the inner wall of the arc-shaped groove 221, so that the antenna vibrator 1 can be easily disassembled and assembled while ensuring the overall installation stability of the antenna vibrator 1.

[0072] When it is necessary to remove the antenna vibrator 1, the worker overcomes the elastic force of the torsion spring 27 and rotates the antenna vibrator 1 toward the positioning groove 22, so that the insertion structure 13 rotates from the arc groove 221 to the positioning groove 22, and can then be pulled out. The pulling process is the same as the above operation. The insertion protrusion 111 of the receiving base 11 separates from the snap-fit ​​groove 252, and the snap-fit ​​protrusion 251 separates from the adapter groove 112. During the pulling process, the radial clip 212 is gradually extended out of the concealed groove 211 by the elastic force of the pressing spring 213 and abuts against the snap-fit ​​protrusion 251 again, restricting the rotation of the mounting plate 25, thereby ensuring the continuity and stability of the overall structure.

[0073] When using the structure of this embodiment, it is necessary to distinguish it from the interference fit method in the above embodiments, as the two are two different implementation methods and are not compatible.

[0074] The actual rotation angle of the mounting plate 25 and the pivot shaft 26 will not exceed the rotation angle of the adjacent connecting port 23. The torsion spring 27 is used to provide elastic force to fasten the overall antenna vibrator 1. Therefore, the mounting bracket 24 will not interfere with the extension of the radio frequency structure 14 from the connecting port 23.

[0075] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A dual-frequency antenna structure, characterized in that, The system includes an antenna element (1) and a mounting base (2); the mounting base (2) has a mounting groove (21) that matches the antenna element (1), and the antenna element (1) is inserted into the mounting groove (21); the antenna element (1) includes a receiving base (11) and at least four sets of tail fins (12) and insertion structures (13); the receiving base (11) is frustum-shaped, with the center of the receiving base (11); at least four sets of insertion structures (13) are radially connected to the antenna element (11). The edge of the top surface of the receiving base (11) extends out of the receiving base (11); the tail fin (12) is connected to the insertion structure (13) in a one-to-one correspondence and extends outward from the receiving base (11); the insertion structure (13) and the receiving base (11) are provided with a communicating radio frequency channel (130), the radio frequency channel (130) is connected to a radio frequency structure (14), and the radio frequency structure (14) is connected to the tail fin (12); the antenna vibrator (1) is connected to the mounting recess. When the slot (21) is inserted, the mounting groove (21) is provided with positioning slots (22) corresponding to at least four sets of the insertion structures (13) and a communication port (23) corresponding to the radio frequency structure (14). The insertion structure (13) is inserted into the positioning slot (22), and the radio frequency structure (14) extends outward from the mounting base (2) through the communication port (23). The insertion structure (13) is divided into two types, namely a high insertion block (131) and a low insertion block (132). The insertion block (131) has a low balance block (134) at its bottom, and the RF channel (130) port is located near the low balance block (134); the low insertion block (132) has a high balance block (133) at its bottom, and the RF channel (130) port is located near the tail fin (12); the RF channel (130) port of the high insertion block (131) is lower than the RF channel (130) port of the low insertion block (132), so that the RF structures (14) are staggered.

2. The dual-frequency antenna structure according to claim 1, characterized in that, The tail fin (12) includes a vertical arm (121), a tuning oscillator arm (122), and a radial oscillator arm (123); the vertical arm (121) is mounted vertically on the insertion structure (13); the tuning oscillator arm (122) is mounted on the top of the vertical arm (121); the radial oscillator arm (123) is mounted on the vertical arm (121) and is located between the tuning oscillator arm (122) and the insertion structure (13), close to the tuning oscillator arm (122); the length of the tuning oscillator arm (122) is shorter than that of the radial oscillator arm (123).

3. The dual-frequency antenna structure according to claim 2, characterized in that, The radial oscillator arm (123) has a T-shaped wing (1231) at the end away from the vertical arm (121).

4. The dual-frequency antenna structure according to claim 1, characterized in that, The height of the high insertion block (131) and the low balance block (134) is equal to the height of the low insertion block (132) and the high balance block (133).

5. A dual-frequency antenna structure according to claim 1, characterized in that, The connection between the insertion structure (13) and the positioning groove (22) is an interference fit assembly.

6. The dual-frequency antenna structure according to claim 1, characterized in that, The surface of the antenna vibrator (1) is covered with a coating.

7. A dual-frequency antenna structure according to claim 1, characterized in that, The radio frequency channel (130) is filled with a medium (135).

8. A dual-frequency antenna structure according to claim 1, characterized in that, There is a preset distance between at least four sets of tail fins (12), and the center of the receiving base (11) is an empty space (15).

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