Dual-polarized omnidirectional ceiling antenna

Abstract

The utility model is applicable to the field of communication, and discloses a dual-polarization omnidirectional ceiling antenna, which comprises a chassis, an outer cover, a vertical polarization antenna assembly, a horizontal polarization antenna assembly and a cable assembly, the vertical polarization antenna assembly comprises an upper cone oscillator assembly, a lower cone oscillator, an insulating part, a first connecting piece and a second connecting piece, the lower cone oscillator is arranged on the chassis, and the horizontal polarization antenna assembly is arranged on the chassis. The first connecting piece is installed on the lower cone oscillator, the second connecting piece is connected with one end, extending out of the lower cone oscillator, of the first connecting piece, the insulating piece is connected with the second connecting piece, the upper cone oscillator assembly is installed on the insulating piece, the horizontal polarized antenna assembly comprises a horizontal oscillator and a horizontal supporting structure, the horizontal oscillator is nested outside the upper cone oscillator assembly, and the horizontal supporting structure is connected with the upper cone oscillator assembly. The upper cone oscillator assembly is arranged on the base plate and is supported on the lower cone oscillator through the horizontal supporting structure, the outer cover is arranged on the base plate, the cable assembly is respectively connected with the upper cone oscillator assembly and the horizontal oscillator, and the vertical polarization antenna assembly and the horizontal polarization antenna assembly form a nested structure, so that the overall size of the antenna is reduced.

Description

Technical Field

[0001] The utility model relates to the field of communications, in particular to a dual-polarization omnidirectional ceiling antenna. Background Art

[0002] Indoor distribution system is an important part of today's wireless communication system. The performance of indoor distributed antenna directly affects the overall performance of the system. With the rapid development of mobile communication system, the complexity of the system is getting higher and higher, which also puts forward new requirements and challenges for the performance of antenna. In addition, as users' awareness of antenna radiation protection increases, more stringent requirements are put forward for the size of indoor distribution system. Therefore, it is very important to design and adopt new miniaturized and high-performance indoor distributed antenna for indoor distribution system.

[0003] At present, there are single-polarized ceiling antennas and dual-polarized ceiling antennas for indoor use. The implementation forms of single-polarized ceiling antennas include single-cone structure, single-cone plus spherical crown structure, and dual-cone structure. However, single-polarized ceiling antennas have inherent blind spots and shadow areas in terms of indoor signal coverage, and are prone to network congestion and call drops under high-efficiency, high-quality, high-capacity, and high-speed data transmission. They cannot be used in systems such as Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) and Time Division Long Term Evolution (TD-LTE).

[0004] Dual-polarized ceiling antennas can improve the spectrum utilization of wireless communication systems without increasing spectrum resources, greatly improving the system's ability to transmit data. In situations where indoor multipath reflection is significant, dual-polarized ceiling antennas can achieve good signal coverage through polarization diversity, and are compatible with multiple mobile communication systems to achieve site sharing. However, the existing dual-polarized ceiling antenna structure is relatively complex. Under the premise of maintaining the high performance and reliability of dual-polarized ceiling antenna products, exploring and implementing a strategy of structural simplification to optimize its overall design and reduce complexity is an important challenge currently faced. Utility Model Content

[0005] The utility model aims to provide a dual-polarization omnidirectional ceiling antenna, which aims to solve the technical problem that the existing dual-polarization ceiling antenna has a relatively complex structure.

[0006] In order to achieve the above object, the solution provided by the utility model is:

[0007] A dual-polarized omnidirectional ceiling antenna comprises a chassis, an outer cover, a vertically polarized antenna assembly, a horizontally polarized antenna assembly and a cable assembly, wherein the vertically polarized antenna assembly comprises an upper cone dipole assembly, a lower cone dipole, an insulating member, a first connecting member and a second connecting member, wherein the lower cone dipole is mounted on the chassis, the first connecting member is mounted on the lower cone dipole, the second connecting member is connected to an end of the first connecting member extending out of the lower cone dipole, the insulating member is connected to the second connecting member, the upper cone dipole assembly is mounted on the insulating member, the horizontally polarized antenna assembly comprises a horizontal dipole and a horizontal supporting structure, the horizontal dipole is nested outside the upper cone dipole assembly and is supported on the lower cone dipole by the horizontal supporting structure, the outer cover is mounted on the chassis, and the inner wall of the outer cover abuts against the upper cone dipole assembly, and the cable assembly is respectively connected to the upper cone dipole assembly and the horizontal dipole.

[0008] Preferably, the lower cone vibrator is provided with a mounting hole, the first connecting member is provided with a first limiting portion, the first connecting member is installed in the mounting hole, and the first limiting portion abuts against an inner wall of the lower cone vibrator.

[0009] Preferably, the first connecting member is provided with an external thread, the second connecting member is provided with an internal thread and an external thread, the insulating member is provided with an internal thread, the second connecting member is threadedly connected to the first connecting member, and the insulating member is threadedly connected to the second connecting member.

[0010] Preferably, the upper cone vibrator assembly includes an upper cone vibrator and an upper cone vibrator pad, the upper cone vibrator is installed on the insulating member, the upper cone vibrator pad is installed on the top of the upper cone vibrator, and the inner wall of the outer cover is provided with a second limiting portion, and the second limiting portion abuts against the upper cone vibrator pad.

[0011] Preferably, a conical mounting groove is provided on the top of the insulating member, and the lower part of the upper cone vibrator is mounted in the conical mounting groove.

[0012] Preferably, a through hole is provided at the bottom of the upper cone vibrator, a protective cover is installed in the through hole, and the cable assembly passes through the protective cover and extends to the interior of the upper cone vibrator.

[0013] Preferably, the horizontal oscillator includes a dielectric substrate, a radiation unit is arranged on the front side of the dielectric substrate, the radiation unit includes at least three groups of dipoles, the three or more groups of dipoles are arranged in an array with the center of the dielectric substrate as the center, and a feeding network is arranged on the back side of the dielectric substrate, and the feeding network is electrically connected to the three or more groups of dipoles.

[0014] Preferably, the dipoles are arranged in 5 groups.

[0015] Preferably, the horizontal supporting structure comprises an isolation column, a first fixing member and a second fixing member, the isolation column is fixed to the lower cone vibrator through the first fixing member, and the upper end of the isolation column passes through the horizontal vibrator and is connected to the second fixing member.

[0016] Preferably, the cable assembly includes a first cable and a second cable, the first cable is connected to the upper cone vibrator assembly after passing through the chassis and the first connector, and the second cable is connected to the horizontal vibrator after passing through the chassis and the lower cone vibrator.

[0017] The dual-polarization omnidirectional ceiling antenna provided by the utility model realizes omnidirectional coverage of the antenna in the horizontal and vertical directions by combining a vertically polarized antenna assembly and a horizontally polarized antenna assembly, and supports dual-polarized signal transmission at the same time, thereby improving the signal coverage range of the antenna and the efficiency of signal reception / transmission, and the horizontal vibrator is nested outside the upper cone vibrator assembly and supported on the lower cone vibrator by a horizontal supporting structure, so that the overall size of the antenna is reduced while ensuring the stability of the horizontal vibrator and avoiding mutual interference with the vertically polarized antenna assembly; in addition, the design of the first connecting member and the second connecting member, in conjunction with the use of an insulating member, ensures a firm connection between the upper cone vibrator assembly and the lower cone vibrator, thereby improving the stability and durability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a dual-polarized omnidirectional ceiling antenna provided by an embodiment of the utility model;

[0020] Figure 2 It is an exploded view of a dual-polarized omnidirectional ceiling antenna provided by an embodiment of the utility model;

[0021] Figure 3 is a cross-sectional view of a dual-polarized omnidirectional ceiling antenna provided by an embodiment of the utility model;

[0022] Figure 4 yes Figure 3 A magnified view of middle;

[0023] Figure 5 It is a partial diagram of a dual-polarized omnidirectional ceiling antenna provided by an embodiment of the utility model;

[0024] Figure 6 It is a bottom view of a horizontal vibrator provided by an embodiment of the utility model;

[0025] Figure 7 It is a top view of the horizontal vibrator provided in the embodiment of the utility model.

[0026] Description of Figure Numbers:

[0027] 10. chassis; 20. outer cover; 21. second limit part; 22. reinforcing ribs; 30. vertically polarized antenna assembly; 31. upper cone dipole assembly; 311. upper cone dipole; 3111. perforation; 3112. protective cover; 312. upper cone dipole pad; 32. lower cone dipole; 321. mounting hole; 33. insulating member; 34. first connecting member; 341. first limit part; 35. second connecting member; 40. horizontally polarized antenna assembly; 41. horizontal dipole; 411. dielectric substrate; 412. dipole; 413. feeding network; 42. horizontal supporting structure; 421. isolation column; 422. first fastener; 423. second fastener; 50. cable assembly; 51. first cable; 52. second cable. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0031] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] like Figures 1 to 7 As shown, it is a dual-polarized omnidirectional ceiling antenna of an embodiment of the utility model.

[0033] See also Figure 1-Figure 5 As shown, a dual-polarized omnidirectional ceiling antenna according to an embodiment of the utility model includes a chassis 10, an outer cover 20, a vertically polarized antenna assembly 30, a horizontally polarized antenna assembly 40 and a cable assembly 50, wherein the vertically polarized antenna assembly 30 includes an upper cone vibrator assembly 31, a lower cone vibrator 32, an insulating member 33, a first connecting member 34 and a second connecting member 35, wherein the lower cone vibrator 32 is mounted on the chassis 10, the lower cone vibrator 32 is provided with a mounting hole 321, the first connecting member 34 is mounted on the lower cone vibrator 32, the second connecting member 35 is connected to an end of the first connecting member 34 extending out of the lower cone vibrator 32, and the insulating member 33 is connected to the second connecting member 35 The upper cone dipole assembly 31 is mounted on the insulating member 33, the horizontal polarization antenna assembly 40 includes a horizontal dipole 41 and a horizontal support structure 42, the horizontal dipole 41 is nested outside the upper cone dipole assembly 31, and is supported on the lower cone dipole 32 by the horizontal support structure 42, a second limiting portion 21 is provided on the inner wall of the outer cover 20, the outer cover 20 is mounted on the chassis 10, and the second limiting portion 21 is abutted against the upper cone dipole assembly 31, the cable assembly 50 is respectively connected to the upper cone dipole assembly 31 and the horizontal dipole 41, the vertical polarization antenna assembly 30 and the horizontal polarization antenna assembly 40 form a nested structure, so that the overall size of the antenna is reduced.

[0034] In this embodiment, the mounting hole 321 is disposed in the central area of ​​the lower cone vibrator 32 .

[0035] In this embodiment, the lower cone vibrator 32 is provided with the mounting hole 321, and the first connecting member 34 is provided with a first limiting portion 341. The first connecting member 34 is installed in the mounting hole 321, and the first limiting portion 341 abuts against the inner wall of the lower cone vibrator 32, so the connection is reliable and easy to disassemble.

[0036] The first connecting member 34 is provided with an external thread, the second connecting member 35 is provided with an internal thread and an external thread, the insulating member 33 is provided with an internal thread, the second connecting member 35 is threadedly connected to the first connecting member 34, and the insulating member 33 is threadedly connected to the second connecting member 35. The connection method is simple, reliable and easy to disassemble.

[0037] The first connecting member 34 can also be configured as a stepped columnar structure including an upper section and a lower section, wherein the outer diameter of the lower section is larger than the inner diameter of the mounting hole 321, the outer diameter of the upper section is slightly smaller than the inner diameter of the mounting hole, and the upper section is provided with an external thread, and the second connecting member 35 is threadedly connected to the upper section.

[0038] The working principle of the dual-polarized omnidirectional ceiling antenna of this embodiment is as follows:

[0039] The dual-polarized omnidirectional ceiling antenna of this embodiment can simultaneously receive and transmit vertically polarized and horizontally polarized electromagnetic wave signals. When the electromagnetic wave signal is transmitted to the upper cone vibrator assembly 31 through the first cable 51 in the cable assembly 50, the upper cone vibrator assembly 31 and the lower cone vibrator 32 jointly form a double-cone symmetrical vibrator structure, and the electromagnetic wave signal is transmitted and reflected between the upper cone vibrator assembly 31 and the lower cone vibrator 32 to form a vertically polarized radiation beam, thereby achieving vertically polarized omnidirectional coverage; when the signal is transmitted to the horizontal vibrator 41 through the second cable 52 in the cable assembly 50, the horizontal vibrator 41 starts to work as a radiation unit. Since the horizontal vibrator 41 is designed to be nested outside the upper cone vibrator assembly 31 and supported on the lower cone vibrator 32 through the horizontal support structure 42, it can independently radiate and receive horizontally polarized electromagnetic waves.

[0040] The dual-polarized omnidirectional ceiling antenna of this embodiment realizes omnidirectional coverage of the antenna in the horizontal and vertical directions by combining the vertically polarized antenna assembly 30 and the horizontally polarized antenna assembly 40, and supports dual-polarized signal transmission, thereby improving the signal coverage range and signal reception / transmission efficiency of the antenna, and the horizontal vibrator 41 is nested outside the upper cone vibrator assembly 31 and supported on the lower cone vibrator 32 by the horizontal support structure 42, so that the overall size of the antenna is reduced while ensuring the stability of the horizontal vibrator 41 and avoiding mutual interference with the vertically polarized antenna assembly 30; in addition, the design of the first connecting member 34 and the second connecting member 35, in conjunction with the use of the insulating member 33, ensures a firm connection between the upper cone vibrator assembly 31 and the lower cone vibrator 32, thereby improving the stability and durability of the overall structure.

[0041] See also Figure 3-Figure 5As shown, in certain embodiments, exemplarily, the upper cone vibrator assembly 31 includes an upper cone vibrator 311 and an upper cone vibrator pad 312, the upper cone vibrator 311 is installed on the insulating member 33, the upper cone vibrator pad 312 is installed on the top of the upper cone vibrator 311, the upper cone vibrator pad 312 is abutted against the inner wall of the outer cover 20, and the upper cone vibrator pad 312 serves as a buffer layer between the upper cone vibrator assembly 31 and the external environment, and can effectively support the upper cone vibrator assembly 31 to prevent it from being displaced or deformed due to vibration or external force during operation.

[0042] In this embodiment, a second limiting portion 21 is disposed on the inner wall of the outer cover 20 , and the second limiting portion 21 abuts against the upper cone vibrator pad 312 component.

[0043] Furthermore, the inner wall of the outer cover 20 is provided with reinforcing ribs 22 . By providing the reinforcing ribs 22 , the strength and rigidity of the outer cover 20 can be improved.

[0044] Furthermore, a through hole 3111 is provided at the bottom of the upper cone vibrator 311, and a protective cover 3112 is installed in the through hole 3111. The cable assembly 50 passes through the protective cover 3112 and extends to the interior of the upper cone vibrator 311. The protective cover 3112 fixes the cable assembly 50 in the through hole 3111, thereby preventing the cable from loosening or breaking due to vibration or movement, thereby improving the stability and reliability of the entire system.

[0045] In this embodiment, a conical mounting groove (not shown) is provided at the top of the insulating member 33, and the lower part of the upper cone vibrator 311 is installed in the conical mounting groove. The design of the conical mounting groove makes the installation process of the upper cone vibrator 311 simpler and faster. Due to the guiding effect of the conical structure, the upper cone vibrator 311 can be more easily inserted and fixed in the mounting groove, reducing the difficulty of alignment and fixing during the installation process. Moreover, the close fit between the conical mounting groove and the lower part of the upper cone vibrator 311 ensures a stable and reliable connection between the two, reducing the risk of performance degradation or failure caused by loose or offset connection. In addition, the design of the conical mounting groove also helps to reduce noise and unnecessary vibration during vibration transmission.

[0046] See also Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, in some embodiments, exemplarily, the horizontal oscillator 41 includes a dielectric substrate 411, a radiation unit is arranged on the front side of the dielectric substrate 411, the radiation unit includes at least three groups of dipoles 412, the three or more groups of dipoles 412 are arranged in an array with the center of the dielectric substrate 411 as the center of the circle, a feeding network 413 is arranged on the back side of the dielectric substrate 411, the feeding network 413 is electrically connected to the three or more groups of dipoles 412, the feeding network 413 distributes the input signal to each dipole 412, and controls the phase and amplitude of each dipole 412 to achieve the desired radiation characteristics, the three or more groups of dipoles 412 are arranged in an array with the center of the dielectric substrate 411 as the center of the circle, this arrangement can utilize the array effect to make the radiation wave propagate evenly in all directions, significantly improve the radiation efficiency and gain of the antenna, and each dipole 412 in the array will contribute its radiation energy, thereby enhancing the overall radiation capability of the horizontal oscillator 41.

[0047] In this embodiment, the number of groups of dipoles 412 is set according to actual needs. In this embodiment, 5 groups of dipoles 412 are provided. With the same size specification, the number of dipoles 412 is set to 5 groups, and the radiation efficiency and gain of the horizontal oscillator 41 are the highest.

[0048] The operating parameters of the dual-polarized omnidirectional ceiling antenna of this embodiment are as follows:

[0049]

[0050] See also Figure 2 and Figure 5 As shown, in some embodiments, exemplarily, the horizontal support structure 42 includes an isolation column 421, a first fixing member 422 and a second fixing member 423. The isolation column 421 is fixed on the lower cone vibrator 32 through the first fixing member 422, and the upper end of the isolation column 421 passes through the horizontal vibrator 41 and is connected to the second fixing member 423. Through the close cooperation of the isolation column 421, the first fixing member 422 and the second fixing member 423, the horizontal support structure 42 can effectively improve the stability of the entire system and reduce the displacement and deformation during the vibration process. As the main load-bearing and force-transmitting component of the support structure, the isolation column 421 is fixed on the lower cone vibrator 32 through the first fixing member 422, ensuring the stability of the lower connection. The first fixing member 422 is responsible for closely connecting the isolation column 421 with the lower cone vibrator 32 to ensure the stability and reliability during the vibration transmission process. The second fixing member 423 is located above the horizontal vibrator 41 and is connected to one end of the isolation column 421 passing through the horizontal vibrator 41, further enhancing the integrity and rigidity of the support structure.

[0051] In this embodiment, three groups of support structures are provided, and the three groups of support structures are distributed at intervals along the circumference of the horizontal vibrator 41. The three groups of support structures are distributed in the circumference of the horizontal vibrator 41, which can effectively disperse and bear the forces and vibrations from different directions, and avoid structural damage caused by excessive force on a single point.

[0052] In this embodiment, the first fastener 422 is a fastener such as a cross recessed pan head screw, a slotted pan head screw, a flat head screw, etc. The second fastener 423 is a fastener such as a plastic hexagonal nut, a nylon hexagonal nut, a round nut, etc. The spacer 421 is a hexagonal spacer 421.

[0053] See also Figure 2 and Figure 5 As shown, in this embodiment, the cable assembly 50 includes a first cable 51 and a second cable 52. The first cable 51 passes through the chassis 10 and the first connector 34 and is connected to the upper cone vibrator assembly 31. The second cable 52 passes through the chassis 10 and the lower cone vibrator 32 and is connected to the horizontal vibrator 41. The first cable 51 and the second cable 52 are respectively connected to different vibrator assemblies (upper cone vibrator 311 and horizontal vibrator 41). This design allows the system to achieve signal transmission or energy transfer in different directions, increasing the flexibility of system design. In addition, the design of the cable passing through the chassis 10 makes the entire assembly more compact in structure, and is also convenient for installation and maintenance.

[0054] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dual-polarized omnidirectional ceiling antenna, characterized in that: It includes a chassis, an outer cover, a vertically polarized antenna assembly, a horizontally polarized antenna assembly and a cable assembly, wherein the vertically polarized antenna assembly includes an upper cone dipole assembly, a lower cone dipole, an insulating member, a first connecting member and a second connecting member, the lower cone dipole is mounted on the chassis, the first connecting member is mounted on the lower cone dipole, the second connecting member is connected to an end of the first connecting member extending out of the lower cone dipole, the insulating member is connected to the second connecting member, the upper cone dipole assembly is mounted on the insulating member, the horizontally polarized antenna assembly includes a horizontal dipole and a horizontal supporting structure, the horizontal dipole is nested outside the upper cone dipole assembly and is supported on the lower cone dipole by the horizontal supporting structure, the outer cover is mounted on the chassis, and the inner wall of the outer cover abuts against the upper cone dipole assembly, and the cable assembly is respectively connected to the upper cone dipole assembly and the horizontal dipole.

2. The dual-polarized omnidirectional ceiling antenna according to claim 1, characterized in that: The lower cone vibrator is provided with a mounting hole, the first connecting member is provided with a first limiting portion, the first connecting member is installed in the mounting hole, and the first limiting portion abuts against an inner wall of the lower cone vibrator.

3. The dual-polarized omnidirectional ceiling antenna according to claim 2, characterized in that: The first connecting member is provided with an external thread, the second connecting member is provided with an internal thread and an external thread, the insulating member is provided with an internal thread, the second connecting member is threadedly connected to the first connecting member, and the insulating member is threadedly connected to the second connecting member.

4. The dual-polarized omnidirectional ceiling antenna according to claim 1, characterized in that: The upper cone vibrator assembly includes an upper cone vibrator and an upper cone vibrator pad, the upper cone vibrator is installed on the insulating member, the upper cone vibrator pad is installed on the top of the upper cone vibrator, and the inner wall of the outer cover is provided with a second limiting portion, which abuts against the upper cone vibrator pad.

5. The dual-polarized omnidirectional ceiling antenna according to claim 4, characterized in that: A conical mounting groove is arranged on the top of the insulating member, and the lower part of the upper cone vibrator is mounted in the conical mounting groove.

6. The dual-polarized omnidirectional ceiling antenna according to claim 5, characterized in that: A through hole is provided at the bottom of the upper cone vibrator, a protective cover is installed in the through hole, and the cable assembly passes through the protective cover and extends to the interior of the upper cone vibrator.

7. The dual-polarized omnidirectional ceiling antenna according to claim 1, characterized in that: The horizontal oscillator includes a dielectric substrate, a radiation unit is arranged on the front side of the dielectric substrate, the radiation unit includes at least three groups of dipoles, the three or more groups of dipoles are arranged in an array with the center of the dielectric substrate as the center of a circle, and a feeding network is arranged on the back side of the dielectric substrate, and the feeding network is electrically connected to the three or more groups of dipoles.

8. The dual-polarized omnidirectional ceiling antenna according to claim 7, characterized in that: The dipoles are arranged in five groups.

9. The dual-polarized omnidirectional ceiling antenna according to claim 1, characterized in that: The horizontal support structure includes an isolation column, a first fixing member and a second fixing member. The isolation column is fixed on the lower cone vibrator through the first fixing member, and the upper end of the isolation column passes through the horizontal vibrator and is connected to the second fixing member.

10. The dual-polarized omnidirectional ceiling antenna according to claim 1, characterized in that: The cable assembly includes a first cable and a second cable. The first cable passes through the chassis and the first connector and is connected to the upper cone vibrator assembly. The second cable passes through the chassis and the lower cone vibrator and is connected to the horizontal vibrator.

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