A communication antenna

Abstract

The application relates to the technical field of antennas, and discloses a communication antenna, which comprises an antenna base, an antenna body and a double-coaxial radio frequency transmission assembly; the antenna base is provided with a connecting base and comprises a signal separation assembly; the antenna body is provided with a connecting head; a lower antenna radiator and an upper antenna radiator are arranged in the antenna body along the extension direction of the antenna body; the lower antenna radiator is connected with a lower matching assembly; the upper antenna radiator is connected with an upper matching assembly; the double-coaxial radio frequency transmission assembly comprises an inner coaxial transmission assembly and an outer coaxial transmission assembly which are coaxially arranged from inside to outside; the outer coaxial transmission assembly is connected with the lower matching assembly; and the inner coaxial transmission assembly can pass through the lower matching assembly and the lower antenna radiator in sequence and is then connected with the upper matching assembly. The outer coaxial transmission assembly is coaxially sleeved outside the inner coaxial transmission assembly to realize signal separation, improve the isolation degree, reduce the influence of the inner coaxial transmission assembly on the lower antenna radiator, and further improve the antenna gain of the communication antenna.

Description

Technical Field

[0001] This invention relates to the field of antenna technology, and more particularly to a communication antenna. Background Technology

[0002] With the rapid development of mobile communication technology, driven by the pursuit of higher spectral efficiency and lower transmission latency, full-duplex technology has become a key candidate technology for wireless communication. This technology allows communication devices to transmit and receive signals simultaneously on the same frequency band, theoretically increasing spectral efficiency to twice that of traditional half-duplex systems.

[0003] In existing antenna technology, multiple radiators need to be placed inside the antenna, and the antenna output has multiple channels. However, the coaxial transmission line feeding the upper antenna radiator passes through the lower antenna radiator, which will cause the lower antenna gain to decrease and the efficiency to decrease, thus affecting the use of the antenna. Summary of the Invention

[0004] The purpose of this invention is to provide a communication antenna that solves the problem in the prior art where the feed coaxial transmission line in the upper antenna radiator passes through the lower antenna radiator, causing a decrease in the gain and efficiency of the lower antenna, which in turn affects the use of the antenna.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention provides a communication antenna, comprising:

[0007] Antenna mount, wherein the antenna mount is provided with a connecting seat;

[0008] The antenna body is provided with a connector, which is detachably connected to the connector base; a lower antenna radiator and an upper antenna radiator are provided inside the antenna body along the extending direction of the antenna body, the lower antenna radiator is connected to a lower matching component, and the upper antenna radiator is connected to an upper matching component; the lower antenna radiator is located on the side closer to the antenna base;

[0009] A dual-coaxial radio frequency transmission assembly is provided, comprising two segments, one of which is located on the antenna mount and the other on the antenna body. When the connector is detachably connected to the mount, the two segments of the dual-coaxial radio frequency transmission assembly are coaxially connected. The dual-coaxial radio frequency transmission assembly includes an inner coaxial transmission assembly and an outer coaxial transmission assembly arranged coaxially from the inside to the outside. The outer coaxial transmission assembly is connected to the lower matching assembly, and the inner coaxial transmission assembly can pass through the lower matching assembly and the lower antenna radiator in sequence before connecting to the upper matching assembly.

[0010] As an optional solution for the aforementioned communication antenna, the dual coaxial radio frequency transmission assembly includes an inner core, an inner dielectric, an inner shielding layer, an outer dielectric, an outer shielding layer, and an insulating sheath arranged coaxially from the inside to the outside. The inner core, the inner dielectric, and the inner shielding layer form the inner coaxial transmission assembly, and the inner shielding layer, the outer dielectric, and the insulating sheath form the outer coaxial transmission assembly. The inner shielding layer is connected to the lower antenna radiator.

[0011] As an alternative to the aforementioned communication antenna, the lower matching component includes a first copper tube and a first matching medium disposed within the first copper tube, the outer shielding layer of the outer coaxial transmission component is connected to the first copper tube, and the inner coaxial transmission component extends out through the first matching medium.

[0012] As an alternative to the aforementioned communication antenna, the upper matching component includes a second copper tube and a second matching medium disposed within the second copper tube, the inner shielding layer of the inner coaxial transmission component is connected to the second copper tube, and the inner core is penetrated by the second matching medium.

[0013] As an optional solution for the above-mentioned communication antenna, the communication antenna further includes a first choke component, a second choke component, and a third choke component. The first choke component is disposed at the end of the lower antenna radiator near the connector, the second choke component is disposed at the end of the lower antenna radiator near the upper antenna radiator, and the third choke component is disposed at the end of the upper antenna radiator near the lower antenna radiator.

[0014] As an alternative to the aforementioned communication antenna, the antenna body includes a support tube, which is supported between the lower antenna radiator and the upper antenna radiator; the inner coaxial transmission assembly passes through the support tube.

[0015] As an alternative to the aforementioned communication antenna, an electromagnetic shielding component is also provided inside the support tube.

[0016] As an optional solution for the aforementioned communication antenna, the antenna mount includes a base, a first RF connector, a second RF connector, and a signal separation component. The base is connected to the connector, and the first RF connector, the second RF connector, and the signal separation component are all disposed within the base. The inner coaxial transmission component of the dual coaxial RF transmission assembly is connected to the first RF connector through the signal separation component, and the outer coaxial transmission component of the dual coaxial RF transmission assembly is connected to the second RF connector through the signal separation component.

[0017] As an alternative to the aforementioned communication antenna, the signal separation component includes a signal separation board and a filter disposed on the signal separation board. The filter includes a grounding inductor. The inner coaxial transmission component is connected to the first RF connector through the grounding inductor, and the outer coaxial transmission component is connected to the second RF connector through the signal separation board and the filter.

[0018] As an alternative to the aforementioned communication antenna, the antenna body further includes an antenna housing, which is fitted over the lower antenna radiator and the upper antenna radiator, and the connector is connected to the antenna housing.

[0019] The beneficial effects of this invention are as follows:

[0020] The communication antenna includes an antenna mount, an antenna body, and a dual coaxial radio frequency transmission assembly. The antenna mount has a connector, and the antenna body has a connector. The connector is detachably connected to the connector, allowing for detachable installation and removal of the antenna body from the antenna mount. This facilitates disassembly and maintenance, extending the antenna's lifespan. The dual coaxial radio frequency transmission assembly consists of two sections: one on the antenna mount and the other on the antenna body. When the connector is detachably connected to the connector, the two sections of the dual coaxial radio frequency transmission assembly are coaxially aligned. This allows for direct alignment of the two sections when the connector is installed on the connector, enabling rapid installation of the communication antenna. Furthermore, the high structural strength of the dual coaxial radio frequency transmission assembly reduces the difficulty of connection. Meanwhile, a lower antenna radiator and an upper antenna radiator are arranged along the extension direction of the antenna body. The lower antenna radiator is connected to a lower matching component, and the upper antenna radiator is connected to an upper matching component. The lower antenna radiator is located on the side closer to the antenna mount. The dual coaxial RF transmission component includes an inner coaxial transmission component and an outer coaxial transmission component arranged coaxially from the inside to the outside. The outer coaxial transmission component is connected to the lower matching component, and the inner coaxial transmission component can pass through the lower matching component and the lower antenna radiator in sequence and then connect to the upper matching component. Thus, through the coaxial nesting design of the outer coaxial transmission component outside the inner coaxial transmission component, signal separation is achieved and isolation is improved, thereby reducing the influence of the inner coaxial transmission component on the lower antenna radiator, thereby improving the antenna gain of the communication antenna and improving efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the communication antenna provided in an embodiment of the present invention;

[0022] Figure 2 This is a partial cross-sectional view of the antenna body provided in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the dual coaxial radio frequency transmission component provided in an embodiment of the present invention;

[0024] Figure 4 This is a cross-sectional view of the lower matching component provided in an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of the upper matching component provided in an embodiment of the present invention;

[0026] Figure 6 This is a partial cross-sectional view of the antenna mount provided in an embodiment of the present invention;

[0027] Figure 7 This is a cross-sectional view of the signal separation component provided in an embodiment of the present invention.

[0028] In the picture:

[0029] 1. Antenna mount; 11. Connector; 12. Base; 13. First RF connector; 14. Second RF connector; 15. Signal separation assembly; 151. Signal separation board; 152. Filter; 153. Grounding inductor; 2. Antenna body; 21. Connector; 22. Lower antenna radiator; 23. Upper antenna radiator; 24. Lower matching assembly; 241. First copper tube; 242. First matching medium; 25. Upper matching assembly; 251. Second copper tube; 252. Second matching medium; 26. Support tube; 261. Electromagnetic shielding assembly; 27. Antenna shell; 3. Dual coaxial RF transmission assembly; 31. Inner coaxial transmission assembly; 32. Outer coaxial transmission assembly; 33. Inner core; 34. Inner medium; 35. Inner shielding layer; 36. Outer medium; 37. Outer shielding layer; 38. Insulating sheath; 4. First choke assembly; 5. Second choke assembly; 6. Third choke assembly. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] like Figures 1 to 7 As shown, this embodiment provides a communication antenna for realizing wireless communication.

[0035] The communication antenna includes an antenna mount 1, an antenna body 2, and a dual coaxial radio frequency transmission assembly 3. The antenna mount 1 has a connector 11, and the antenna body 2 has a connector 21. The connector 21 is detachably connected to the connector 11, allowing for detachable installation of the antenna body 2 on the antenna mount 1. This facilitates disassembly and maintenance, extending the service life of the communication antenna. The dual coaxial radio frequency transmission assembly 3 consists of two sections, one on the antenna mount 1 and the other on the antenna body 2. When the connector 21 is detachably connected to the connector 11, the two sections of the dual coaxial radio frequency transmission assembly 3 are coaxially connected. This allows for direct alignment of the two sections when the connector 21 is installed on the connector 11, enabling rapid installation of the communication antenna. Furthermore, the dual coaxial radio frequency transmission assembly 3 has high structural strength, reducing the difficulty of alignment. Optionally, the connector 21 can be directly screwed onto the connector 11, whereas conventional antennas use dual-core connectors that require alignment before external screw thread connection, which is inconvenient for rapid installation.

[0036] Meanwhile, a lower antenna radiator 22 and an upper antenna radiator 23 are arranged inside the antenna body 2 along its extension direction. The lower antenna radiator 22 is connected to a lower matching component 24, and the upper antenna radiator 23 is connected to an upper matching component 25. The lower antenna radiator 22 is located on the side closer to the antenna mount 1. The dual coaxial RF transmission assembly 3 includes an inner coaxial transmission assembly 31 and an outer coaxial transmission assembly 32 arranged coaxially from the inside to the outside. The outer coaxial transmission assembly 32 is connected to the lower matching component 24, and the inner coaxial transmission assembly 31 can pass through the lower matching component 24 and the lower antenna radiator 22 in sequence before connecting to the upper matching component 25. Thus, through the coaxial sleeve design of the outer coaxial transmission assembly 32 outside the inner coaxial transmission assembly 31, signal separation is achieved and isolation is improved, thereby reducing the influence of the inner coaxial transmission assembly 31 on the lower antenna radiator 22 and improving the antenna gain of the communication antenna. Among them, the inner coaxial transmission assembly 31 is the feed coaxial transmission line.

[0037] like Figure 1 and Figure 2 As shown, the antenna body 2 also includes an antenna housing 27, which is fitted over the lower antenna radiator 22 and the upper antenna radiator 23. A connector 21 is connected to the antenna housing 27, thereby protecting the lower antenna radiator 22, the upper antenna radiator 23, and other internal structures. Optionally, both the lower antenna radiator 22 and the upper antenna radiator 23 are divided into at least two segments, and adjacent segments of the lower antenna radiator 22 and adjacent segments of the upper antenna radiator 23 are supported and connected by a support frame.

[0038] like Figure 2 and Figure 3As shown, the dual coaxial radio frequency transmission assembly 3 includes an inner core 33, an inner dielectric 34, an inner shielding layer 35, an outer dielectric 36, an outer shielding layer 37, and an insulating sheath 38 arranged coaxially from the inside to the outside. The inner core 33, the inner dielectric 34, and the inner shielding layer 35 form an inner coaxial transmission assembly 31, and the inner shielding layer 35, the outer dielectric 36, and the insulating sheath 38 form an outer coaxial transmission assembly 32. Thus, the inner coaxial transmission assembly 31 and the outer coaxial transmission assembly 32 share the inner shielding layer 35. The inner shielding layer 35 of the outer coaxial transmission assembly 32 can transmit the transmission signal entering the lower antenna radiator 22, and the inner core 33 of the inner coaxial transmission assembly 31 can transmit the transmission signal entering the upper antenna radiator 23. The inner shielding layer 35 is connected to the lower antenna radiator 22, thereby reducing the influence of the inner coaxial transmission assembly 31 on the lower antenna radiator 22 to zero.

[0039] Specifically, such as Figure 2 and Figure 4 As shown, the lower matching component 24 includes a first copper tube 241 and a first matching medium 242 disposed within the first copper tube 241. The outer shielding layer 37 of the outer coaxial transmission component 32 is connected to the first copper tube 241. The inner coaxial transmission component 31 extends through the first matching medium 242. Through the connection between the outer shielding layer 37 and the first copper tube 241, the outer coaxial transmission component 32 can be supported, and signal shielding can be achieved, reducing external electromagnetic interference. The first matching medium 242 can be used to adjust the impedance of the lower antenna radiator 22 and the outer coaxial transmission component 32, and frequency adaptation of the transmitted signal can be achieved. Figure 2 and Figure 5 As shown, the upper matching component 25 includes a second copper tube 251 and a second matching medium 252 disposed within the second copper tube 251. The inner shielding layer 35 of the inner coaxial transmission component 31 is connected to the second copper tube 251, and the inner core 33 extends through the second matching medium 252. Through the connection between the inner shielding layer 35 and the second copper tube 251, the inner coaxial transmission component 31 can be supported and signal shielded, reducing external electromagnetic interference. The second matching medium 252 enables impedance adjustment of the upper antenna radiator 23 and the inner coaxial transmission component 31, and frequency adaptation of the transmitted signal. Optionally, both the first matching medium 242 and the second matching medium 252 include at least two different matching filling media.

[0040] Meanwhile, the communication antenna also includes a first choke component 4, a second choke component 5, and a third choke component 6. The first choke component 4 is located at the end of the lower antenna radiator 22 near the connector 21, thereby preventing the current on the lower antenna radiator 22 from flowing to ground through the outer shielding layer 37 of the dual coaxial radio frequency transmission component 3. The second choke component 5 is located at the end of the lower antenna radiator 22 near the upper antenna radiator 23, thereby preventing the current on the lower antenna radiator 22 from flowing to the upper antenna radiator 23 through the inner shielding layer 35 of the dual coaxial radio frequency transmission component 3. The third choke component 6 is located at the end of the upper antenna radiator 23 near the lower antenna radiator 22, thereby preventing the current on the upper antenna radiator 23 from flowing to the lower antenna radiator 22 through the inner shielding layer 35 of the dual coaxial radio frequency transmission component 3.

[0041] Furthermore, the antenna body 2 includes a support tube 26, which is positioned between the lower antenna radiator 22 and the upper antenna radiator 23. An inner coaxial transmission assembly 31 passes through the support tube 26, thereby supporting both the lower and upper antenna radiators 22 and 23. Optionally, an electromagnetic shielding assembly 261 is also provided within the support tube 26 to improve the isolation between the upper and lower antenna radiators 22.

[0042] like Figure 1 , Figure 6 and Figure 7 As shown, the antenna mount 1 includes a base 12, a first RF connector 13, a second RF connector 14, and a signal separation component 15. The base 12 is connected to the connector 11. The first RF connector 13, the second RF connector 14, and the signal separation component 15 are all located within the base 12. The inner coaxial transmission component 31 of the dual coaxial RF transmission component 3 is connected to the first RF connector 13 through the signal separation component 15, and the outer coaxial transmission component 32 of the dual coaxial RF transmission component 3 is connected to the second RF connector 14 through the signal separation component 15. Thus, the dual coaxial RF transmission component 3 within the antenna body 2 can achieve signal separation through the signal separation component 15, so that the RF signal of the upper antenna radiator 23 is output to the first RF connector 13, and the RF signal of the lower antenna radiator 22 is output to the second RF connector 14.

[0043] Specifically, the signal separation component 15 includes a signal separation board 151 and a filter 152 disposed on the signal separation board 151. The filter 152 includes a grounding inductor 153. The inner coaxial transmission component 31 is connected to the first RF connector 13 through the grounding inductor 153, and the outer coaxial transmission component 32 is connected to the second RF connector 14 through the signal separation board 151 and the filter 152. Thus, the transmission path of the RF signal of the upper antenna radiator 23 is, in sequence, the upper antenna radiator 23, the inner coaxial transmission component 31, the grounding inductor 153, and the first RF connector 13. The transmission path of the RF signal of the lower antenna radiator 22 is, in sequence, the lower antenna radiator 22, the outer coaxial transmission component 32, the signal separation board 151, the filter 152, and the second RF connector 14. Optionally, the grounding inductor 153 is wound from the inner coaxial transmission component 31, and to prevent short circuits in the grounding inductor 153, a thermoplastic sleeve is fitted over the grounding inductor 153 for insulation.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A communication antenna, characterized in that, include: Antenna mount (1), wherein the antenna mount (1) is provided with a connecting seat (11); Antenna body (2), the antenna body (2) is provided with a connector (21), the connector (21) is detachably connected to the connector (11); a lower antenna radiator (22) and an upper antenna radiator (23) are provided inside the antenna body (2) along the extension direction of the antenna body (2), the lower antenna radiator (22) is connected to a lower matching component (24), and the upper antenna radiator (23) is connected to an upper matching component (25); the lower antenna radiator (22) is located on the side close to the antenna base (1); A dual coaxial radio frequency transmission assembly (3) is divided into two sections, one of which is located on the antenna base (1) and the other is located on the antenna body (2). When the connector (21) is detachably connected to the connector (11), the two sections of the dual coaxial radio frequency transmission assembly (3) are coaxially connected. The dual coaxial radio frequency transmission assembly (3) includes an inner coaxial transmission assembly (31) and an outer coaxial transmission assembly (32) arranged coaxially from the inside to the outside. The outer coaxial transmission assembly (32) is connected to the lower matching assembly (24), and the inner coaxial transmission assembly (31) can pass through the lower matching assembly (24) and the lower antenna radiator (22) in sequence and then be connected to the upper matching assembly (25). The dual coaxial radio frequency transmission assembly (3) includes an inner core (33), an inner medium (34), an inner shielding layer (35), an outer medium (36), an outer shielding layer (37), and an insulating sheath (38) arranged coaxially from the inside to the outside. The inner core (33), the inner medium (34), and the inner shielding layer (35) form the inner coaxial transmission assembly (31), and the inner shielding layer (35), the outer medium (36), and the insulating sheath (38) form the outer coaxial transmission assembly (32). The inner shielding layer (35) is connected to the lower antenna radiator (22). The communication antenna further includes a first choke component (4), a second choke component (5), and a third choke component (6). The first choke component (4) is located at one end of the lower antenna radiator (22) near the connector (21). The second choke component (5) is located at one end of the lower antenna radiator (22) near the upper antenna radiator (23). The third choke component (6) is located at one end of the upper antenna radiator (23) near the lower antenna radiator (22).

2. The communication antenna according to claim 1, characterized in that, The lower matching component (24) includes a first copper tube (241) and a first matching medium (242) disposed inside the first copper tube (241). The outer shielding layer (37) of the outer coaxial transmission component (32) is connected to the first copper tube (241), and the inner coaxial transmission component (31) extends out through the first matching medium (242).

3. The communication antenna according to claim 1, characterized in that, The upper matching component (25) includes a second copper tube (251) and a second matching medium (252) disposed within the second copper tube (251). The inner shielding layer (35) of the inner coaxial transmission component (31) is connected to the second copper tube (251), and the inner core (33) extends out through the second matching medium (252).

4. The communication antenna according to claim 1, characterized in that, The antenna body (2) includes a support tube (26), which is supported between the lower antenna radiator (22) and the upper antenna radiator (23); the inner coaxial transmission assembly (31) passes through the support tube (26).

5. The communication antenna according to claim 4, characterized in that, An electromagnetic shielding assembly (261) is also provided inside the support tube (26).

6. The communication antenna according to claim 1, characterized in that, The antenna mount (1) includes a base (12), a first radio frequency connector (13), a second radio frequency connector (14), and a signal separation component (15). The base (12) is connected to the connector (11). The first radio frequency connector (13), the second radio frequency connector (14), and the signal separation component (15) are all located inside the base (12). The inner coaxial transmission component (31) of the dual coaxial radio frequency transmission component (3) is connected to the first radio frequency connector (13) through the signal separation component (15). The outer coaxial transmission component (32) of the dual coaxial radio frequency transmission component (3) is connected to the second radio frequency connector (14) through the signal separation component (15).

7. The communication antenna according to claim 6, characterized in that, The signal separation component (15) includes a signal separation board (151) and a filter (152) disposed on the signal separation board (151). The filter (152) includes a grounding inductor (153). The inner coaxial transmission component (31) is connected to the first RF connector (13) through the grounding inductor (153). The outer coaxial transmission component (32) is connected to the second RF connector (14) through the signal separation board (151) and the filter (152).

8. The communication antenna according to any one of claims 1 to 7, characterized in that, The antenna body (2) also includes an antenna housing (27), which is fitted over the lower antenna radiator (22) and the upper antenna radiator (23), and the connector (21) is connected to the antenna housing (27).

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