Antenna assembly, antenna and base station

Abstract

The invention provides an antenna assembly, an antenna and a base station, the antenna assembly comprises a reflecting plate, and a radiation unit and a phase shift device which are respectively arranged on the front and back surfaces of the reflecting plate, the phase shift device is respectively provided with a phase shifter corresponding to each polarization of the radiation unit, and the phase shifter is internally provided with a plurality of phase shift circuits working at different frequency bands. A plurality of phase shift circuits are arranged on the reflecting plate, an adapter penetrating through the reflecting plate is arranged between the phase shifter and the radiation unit, a combining network is arranged on the adapter, the combining network is electrically connected with the plurality of phase shift circuits respectively to realize combining, and the combining network is further electrically connected with a polarized feed component corresponding to the radiation unit. According to the antenna assembly, a coaxial cable does not need to be arranged to achieve the signal transmission and combination functions, the electrical structure of the antenna assembly is effectively simplified, the problems of signal loss, electromagnetic interference and the like possibly caused by using the coaxial cable are reduced, and therefore the electrical performance of the antenna assembly is remarkably optimized.

Description

Technical Field

[0001] This invention belongs to the field of mobile communication technology, specifically relating to an antenna assembly, an antenna configured with the antenna assembly, and a base station configured with the antenna. Background Technology

[0002] As a crucial component ensuring the stable operation and widespread coverage of communication networks, the performance and quality of antenna equipment at base stations are of paramount importance. Currently, dual-band electrically tunable antennas have become the mainstream antenna type used in base station construction.

[0003] The core components of a dual-band electrically adjustable antenna are complex and critical, mainly including coaxial cables, phase shifters, combiners, radiating elements, and reflectors. Among these, the phase shifters and combiners are the core components enabling independent electrical downtilt adjustment of the dual-band antenna. Specifically, the coaxial cable plays a crucial role in connecting the phase shifters, which in turn connect to the combiners and radiating elements via the coaxial cable, thus constructing the entire antenna's electrical signal transmission network. This ensures accurate and efficient signal transmission between the components, enabling the antenna to function properly.

[0004] Currently, in practice, dual-band electrically tunable base station antennas typically use coaxial cables to connect their radiating elements, combiners, and phase shifters. This connection method has many drawbacks, significantly impacting the overall performance of the antenna system. Coaxial cable connections make the entire antenna system layout extremely complex. Due to the flexibility and length limitations of coaxial cables, careful planning of the wiring is necessary to avoid signal interference and unreasonable space occupation when connecting various components. However, in practice, achieving a perfect layout is difficult, resulting in messy internal wiring, which not only increases the antenna's size and weight but also negatively affects its heat dissipation performance. Moreover, the complex layout requires more time and effort during antenna installation and maintenance, increasing operation and maintenance costs.

[0005] Furthermore, the flexibility of coaxial cables results in poor antenna stability and consistency. In practical applications, antennas may be subjected to various external forces. Even slight shaking or compression of the coaxial cable during transportation and installation can cause changes in its internal structure, thereby affecting the transmission quality of electrical signals. This unstable connection method causes fluctuations in the antenna's radiation performance, making it impossible to maintain optimal performance and meet the ever-increasing performance requirements of base station antennas in mobile communication development. Summary of the Invention

[0006] The primary objective of this invention is to solve at least one of the above-mentioned problems by providing an antenna assembly, an antenna, and a base station.

[0007] To achieve the various objectives of this invention, the following technical solution is adopted: To achieve one of the objectives of this invention, an antenna assembly is provided, comprising a reflector and radiating elements and a phase shifting device disposed on opposite sides of the reflector. The phase shifting device is provided with phase shifters corresponding to each polarization of the radiating elements. Each phase shifter is provided with multiple phase shifting circuits operating in different frequency bands. An adapter is provided between the phase shifter and the radiating elements, passing through the reflector. A combining network is provided on the adapter. The combining network is electrically connected to the multiple phase shifting circuits to achieve combining. The combining network is also electrically connected to the feed component corresponding to the polarization of the radiating elements.

[0008] In one embodiment, the adapter includes a first adapter plate and a second adapter plate. The combining network includes a first combining circuit disposed on the first adapter plate and a second combining circuit disposed on the second adapter plate. The second adapter plate is disposed on the front side of the reflector, and the radiating unit is located on the second adapter plate. The first combining circuit is electrically connected to the plurality of phase shifting circuits, and the second combining circuit is electrically connected to the power supply component. The first adapter plate passes through the reflector and is inserted into the second adapter plate to make the first combining circuit and the second combining circuit electrically connected.

[0009] In one embodiment, the first combining circuit includes a plurality of feed branches, each of which is electrically connected to a plurality of phase-shifting circuits, and the plurality of feed branches are electrically connected to form a combining branch, which is electrically connected to the second combining circuit.

[0010] In one embodiment, the first combining circuit includes multiple feeder branches, each of which is electrically connected to a plurality of phase-shifting circuits. All of the multiple feeder branches are electrically connected to the second combining circuit to achieve combining.

[0011] In one embodiment, the second combining circuit has a filter stub.

[0012] In one embodiment, the phase shifter includes a cavity, the cavity having multiple inner cavities, the multiple phase shifting circuits being respectively installed in the multiple inner cavities, the first adapter board having multiple pins, the multiple power supply branches being respectively arranged on the multiple pins, and the multiple pins passing through the cavity to respectively enter the multiple inner cavities.

[0013] In one embodiment, the phase shifter includes two phase shifting circuits operating in different frequency bands. The cavity includes a top plate and side plates disposed on both sides of the top plate. The top plate and the reflector are disposed opposite to each other. The two side plates are respectively provided with insertion holes. The two insertion pins of the first adapter plate are respectively inserted into the two insertion holes so that the two power supply branches are respectively electrically connected to the two phase shifting circuits.

[0014] In one embodiment, the phase shifting device is configured with multiple phase shifters corresponding to multiple polarizations of the radiation unit, and the second combining circuits corresponding to each of the multiple phase shifters are arranged on the same second adapter board.

[0015] In one embodiment, the radiation unit is a dual-polarized radiation unit, and the phase shifting device is configured with two phase shifters corresponding to the radiation unit, the two phase shifters being arranged side by side.

[0016] In one embodiment, the first combining circuit is disposed on the front side of the first adapter plate, and a first grounding layer is provided on the back side of the first adapter plate, the first grounding layer being electrically connected to the cavity of the phase shifter; the second combining circuit is disposed on the front side of the second adapter plate, and a second grounding layer is provided on the back side of the second adapter plate, the second grounding layer being face-to-face with the front side of the reflector.

[0017] In one embodiment, the antenna assembly includes multiple radiating elements that share the same reflector and the same phase shifter, and the multiple radiating elements may be arranged along the same axis or not along the same axis.

[0018] An antenna is provided to suit one of the purposes of the present invention, comprising a plurality of antenna components as described in any one of the preceding purposes, the plurality of antenna components being arranged side by side to form a radiating array.

[0019] In one embodiment, the plurality of antenna assemblies share the same reflector.

[0020] To suit one of the purposes of this invention, a base station is provided, comprising an antenna as described in any of the preceding purposes.

[0021] Compared with existing technologies, the present invention has many advantages, including but not limited to: The antenna assembly of the present invention realizes the combining operation of signals of different frequency bands through the combining network on the adapter through the reflector, integrates signals of multiple frequency bands together, avoids the complex layout and signal interference problems that may occur when traditional antenna assemblies process multi-frequency signals, and provides an efficient and stable solution for multi-frequency communication.

[0022] In traditional antenna assemblies, the use of coaxial cables not only increases the complexity and size of the assembly but also causes numerous inconveniences during installation and maintenance. The antenna assembly of this invention, however, achieves signal transmission and combining through a combining network on the adapter, eliminating redundant coaxial cables and making the overall electrical structure of the antenna assembly simpler and clearer. This simplification not only facilitates the design, production, and installation of the antenna assembly but also reduces production costs and maintenance difficulty, improving production efficiency and product maintainability. Attached Figure Description

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of an antenna assembly according to an embodiment of the present invention.

[0024] Figure 2 This is a partial structural diagram of an antenna assembly according to an embodiment of the present invention.

[0025] Figure 3 for Figure 2 An explosion diagram.

[0026] Figure 4 for Figure 3 An enlarged schematic diagram of part A.

[0027] Figure 5 This is a schematic diagram of the antenna assembly according to another embodiment of the present invention.

[0028] Figure 6 This is a partial structural schematic diagram of an antenna assembly according to another embodiment of the present invention.

[0029] Figure 7 for Figure 6 An explosion diagram.

[0030] Figure 8 for Figure 7 An enlarged schematic diagram of part B.

[0031] Figure 9 for Figure 7 An enlarged view of part C. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated 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.

[0033] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or components, nor does it exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0034] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0035] This invention provides an antenna assembly that can combine multiple phase-shifting circuits operating in different frequency bands without the need for coaxial cables, and transmit the combined signal to a corresponding polarized feed component in the radiating element, thereby improving the electrical performance of the antenna and avoiding electrical interference caused by coaxial cables.

[0036] In a typical embodiment of the present invention, combined with Figure 1 or Figure 5 The antenna assembly 10 includes a radiating element 100, a reflector 200, and a phase shifting device 600. The radiating element 100 and the phase shifting device 600 are respectively disposed on the front and back sides of the reflector 200.

[0037] The radiation unit 100 has multiple polarizations, each polarization consisting of one or more pairs of radiation arms 110. The phase shifting device 600 is provided with multiple phase shifters 300 corresponding to the multiple polarizations of the radiation unit 100, that is, one phase shifter 300 is configured for each polarization.

[0038] The phase shifter 300 internally includes multiple phase shifting circuits 310, each operating in a different frequency band. A connector is provided between the phase shifter 300 and the radiating unit 100, passing through the reflector 200. A combining network is provided on the connector, electrically connected to the multiple phase shifting circuits 310 in the phase shifter 300, enabling the combining network to combine the multiple phase shifting circuits 310. Simultaneously, the combining network is also electrically connected to the corresponding polarized feed component 120 of the radiating unit 100, allowing the combining network to transmit the combined signal to the corresponding polarized radiating arm 110 of the radiating unit 100, thereby exciting the radiating arm 110 to emit signals.

[0039] Specifically, combined Figure 3 and Figure 4 or Figures 7 to 9 The adapter includes a first adapter plate 410 and a second adapter plate 420. Correspondingly, the combining network includes a first combining circuit 510 and a second combining circuit 520, wherein the first combining circuit 510 is disposed on the first adapter plate 410 and the second combining circuit 520 is disposed on the second adapter plate 420.

[0040] The first combining circuit 510 is provided with multiple power supply branches 511. The first adapter plate 410 passes through the cavity 320 of the phase shifter 300, so that the multiple power supply branches 511 can be electrically connected to the multiple phase shifting circuits 310 of the phase shifter 300 respectively.

[0041] The second adapter plate 420 is disposed on the front side 210 of the reflector 200. The first adapter plate 410 passes through the reflector 200 and is plugged into the second adapter plate 420, so that the first combining circuit 510 and the second combining circuit 520 are electrically connected. In this embodiment, there are two ways to achieve combining: one is that the multiple power supply branches 511 are combined on the first adapter plate 410; the other is that the multiple power supply branches 511 extend to the second adapter plate 420 and are combined on the second adapter plate 420.

[0042] The radiating unit 100 is located on the second adapter plate 420, so that the second combining circuit 520 arranged on the second adapter plate 420 can be electrically connected to the power supply component 120 corresponding to the polarization of the radiating unit 100.

[0043] The multiple phase shifters 300 in the phase shifting device 600 feed signals to the multiple polarizations corresponding to the radiation unit 100 through their respective corresponding adapters, thereby enabling the radiation unit 100 to radiate signals to the outside.

[0044] Therefore, compared with conventional antenna assemblies, the antenna assembly 10 of the present invention can achieve the combining of multiple phase shifting circuits 310 of the phase shifter 300 without the need for a coaxial cable, and can be electrically connected to the polarized feed component 120 corresponding to the radiating element 100. Since no coaxial cable is required, signal loss and interference during transmission are reduced, optimizing the electrical performance of the antenna assembly 10. Simultaneously, the improved electrical performance further enhances the antenna's radiation performance, resulting in superior performance in terms of signal coverage and signal strength.

[0045] In a typical embodiment of the present invention, to clearly and accurately illustrate the antenna assembly 10 of the present invention, the following detailed description is based on the example of the radiating element 100 being a dual-polarized radiating element and the phase shifter 300 including two phase shifting circuits 310 operating in different frequency bands. However, it should be noted that this example is only for the purpose of understanding the present invention and should not be regarded as constituting any limitation on the scope of protection of the present invention.

[0046] Combination Figure 2 or Figure 6 The radiation unit 100 specifically includes two pairs of orthogonally polarized radiation arms 110 and two feeding components 120. The two feeding components 120 correspond to the two pairs of radiation arms 110 respectively, and are used to feed the two pairs of radiation arms 100; that is, one feeding component 120 provides an electrical signal to its corresponding pair of radiation arms 110. In this embodiment, to further illustrate the invention, a pair of baluns is used as an example of the feeding components 120, but this should not be construed as limiting the invention.

[0047] Combination Figure 3 and Figure 4 The phase shifting device 600 includes two phase shifters 300, each corresponding to one of the two polarizations of the radiating element 100. Each phase shifter 300 consists of a cavity 320 and two phase shifting circuits 310, which operate at different frequency bands to meet the phase shifting requirements of the antenna at different frequency bands.

[0048] A partition plate 321 is provided inside the cavity 320, dividing the cavity 320 into two independent inner cavities 322. Two phase-shifting circuits 310 are respectively disposed in the two inner cavities 322, meaning one phase-shifting circuit 310 is installed in each inner cavity 322. When an external device feeds a signal to the phase-shifting circuit 310, the signal undergoes phase-shifting processing at the phase-shifting circuit 310, thereby realizing the phase-shifting function. In this embodiment, to improve the integration and stability of the phase-shifting circuit 310, the phase-shifting circuit 310 is integrated on a dielectric substrate.

[0049] A connector is provided between the phase shifter 300 and a corresponding polarization of the radiating unit 100. This connector passes through the reflector 200, allowing the combining network arranged on the connector to connect to the two phase shifting circuits 310 of the phase shifter 300. Simultaneously, the combining network is also electrically connected to the feed component 120 corresponding to the polarization of the radiating unit 100, enabling the combining network to accurately feed the combined signal into the feed component 120, thereby providing a signal to the corresponding polarization of the radiating unit 100 and allowing the radiating unit 100 to radiate signals normally.

[0050] Specifically, combined Figure 3 and Figure 4 The adapter includes a first adapter board 410 and a second adapter board 420, and the combining network includes a first combining circuit 510 and a second combining circuit 520. The first combining circuit 510 is disposed on the first adapter board 410, and the second combining circuit 520 is disposed on the second adapter board 420. The first combining circuit 510 and the second combining circuit 520 cooperate to combine signals.

[0051] The first combining circuit 510 has two feed branches 511, which are referred to as the first feed branch 512 and the second feed branch 513 for ease of description and distinction. The first adapter plate 410 passes through the cavity 320 of the phase shifter 300, so that the first feed branch 512 can be electrically connected to one of the phase shifting circuits 311 in the phase shifter 300 (referred to as the first phase shifting circuit 311); at the same time, the second feed branch 513 can be electrically connected to the other phase shifting circuit 312 in the phase shifter 300 (referred to as the second phase shifting circuit 312); thereby ensuring stable signal transmission between the phase shifting circuit 310 and the feed branch 511, and meeting the signal processing and transmission requirements of the antenna assembly 10.

[0052] In one embodiment, the cavity 320 of the phase shifter 300 has two through holes (referred to as insertion holes 323). The first adapter plate 410 has two corresponding insertion pins 411, and the two power supply branches 511 are independently arranged on the two insertion pins 411. The two insertion pins 411 are accurately inserted into the two inner cavities 322 through the two insertion holes 323, so that the first power supply branch 512 is electrically connected to the first phase shifting circuit 311, and the second power supply branch 513 is electrically connected to the second phase shifting circuit 312, thereby ensuring stable signal transmission between the phase shifter 300 and the power supply branches 511.

[0053] In a further embodiment, the cavity 320 of the phase shifter 300 includes a top plate 324 and side plates 325 respectively disposed on both sides of the top plate 324. The orientation of the top plate 324 is opposite to the reverse side of the reflector 200. A partition plate 321 is provided inside the cavity 320, which is arranged parallel to the two side plates 325. Thus, each of the two inner cavities 322 disposed on both sides of the partition plate 321 corresponds to one side plate 325.

[0054] Since each side plate 325 has a plug hole 323, the two plug pins 411 span the top plate 324 and are accurately inserted into the two plug holes 323 respectively, and enter the corresponding inner cavity 322 respectively. This provides a convenient and reliable structural support for the two feed branches 511 to be electrically connected to the corresponding two phase shift circuits 310 respectively, which helps to improve the electrical stability of the antenna assembly 10.

[0055] In one embodiment, the two feed branches 511 are arranged on the front side of the first adapter plate 410, and a grounding layer (referred to as the first grounding layer, not shown) is arranged on the back side of the first adapter plate 410. The first grounding layer is electrically connected to the cavity 320 of the phase shifter 300 to achieve grounding, which helps to reduce electromagnetic interference, improve the electrical performance stability and signal transmission quality of the antenna assembly 10, and ensure that the antenna assembly 10 can operate stably and reliably in complex working environments.

[0056] In a typical embodiment of the present invention, combined with Figure 3 The second adapter plate 420 is disposed on the front surface 210 of the reflector 200. The second combining circuit 520 is arranged on the front surface of the second adapter plate 420, and the front surface of the second adapter plate 420 faces the same direction as the front surface 210 of the reflector 200. At the same time, the back surface of the second adapter plate 420 is in contact with the front surface 210 of the reflector 200.

[0057] In this embodiment, a grounding layer (referred to as the second grounding layer, not shown) is provided on the reverse side of the second adapter plate 420. The second grounding layer is in close contact with the reflector plate 200 to achieve grounding, which helps to reduce electromagnetic interference and improve the electrical stability of the antenna assembly 10.

[0058] In addition, the reflector 200 has a through hole (referred to as the connecting hole 230), through which the first adapter plate 410 can pass and be plugged into and fixed with the second adapter plate 420, so that the first combining circuit 510 and the second combining circuit 520 can be connected to each other to form a complete combining network, so as to meet the signal combining processing requirements of the antenna assembly 10 and ensure that the signal can be transmitted and processed efficiently and stably.

[0059] In this embodiment, combined with Figure 4 On the first adapter board 410, the first feed branch 512 and the second feed branch 513 of the first combining circuit 510 are combined to form a first combining branch 514. The first combining branch 514 extends to the connection point between the first adapter board 410 and the second adapter board 420, facilitating the establishment of an electrical connection between the first feed branch 512, the second feed branch 513, and the second combining circuit 520 disposed on the second adapter board 420, thereby realizing signal transmission.

[0060] In another embodiment, combined with Figure 8 On the second adapter plate 420, the second combining circuit 520 is provided with two combining branches 521. For ease of subsequent description and distinction, the two combining branches 521 are referred to as the first combining branch 522 and the second combining branch 523, respectively. On the first adapter plate 410, both feed branches of the first combining circuit 510 extend to the connection point between the first adapter plate 410 and the second adapter plate 420, so that the two feed branches 511 can respectively achieve a one-to-one electrical connection with the two combining branches 521 on the second adapter plate 420. Specifically, combined Figure 8 and Figure 9 Specifically, the first feed branch 512 is electrically connected to the first combining branch 522, and the second feed branch 513 is electrically connected to the second combining branch 523. The first combining branch 522 and the second combining branch 523 are combined to form the second combining branch 525. This second combining branch 525 is electrically connected to the corresponding polarized feed component 120 in the radiation unit 100, thereby providing a signal to the corresponding polarized pair of radiation arms 110, enabling the radiation unit 100 to radiate signals externally.

[0061] In a further embodiment, a filter stub 524 is loaded onto the combining stub 521. By loading the filter stub 524 onto the combining stub 521, the signal output from the phase shifting circuit 310 to the combining network can be effectively filtered. Through filtering, clutter, interference, and other adverse factors in the signal can be removed, thereby optimizing signal quality, reducing signal loss and distortion during transmission, and ultimately improving the radiation performance of the radiating element 100, enabling the antenna assembly 10 to radiate signals more stably and efficiently during operation.

[0062] In a typical embodiment of the present invention, combined with Figure 3 or Figure 8 The radiating element 100 is located on the front side of the second adapter plate 420. The second combining circuit 520 establishes an electrical connection with the feed component 120 of the corresponding polarization in the radiating element 100, so that the second combining circuit 520 can output the combined signal to the feed component 120, thereby enabling the radiating element 100 to radiate a signal corresponding to that polarization, thus meeting the signal radiation requirements of the antenna assembly 10.

[0063] The second adapter plate 420 has a second grounding layer on its reverse side, and the second grounding layer is in contact with the reflector plate 200, so that the radiating unit 100 can be electrically connected to the reflector plate 200 through the second grounding layer, thereby achieving the purpose of grounding, which helps to improve the electrical performance stability and signal radiation effect of the antenna assembly 10.

[0064] In this embodiment, combined with Figure 3 and Figure 4 or Figures 7 to 9 The phase shifting device 600 is provided with two phase shifters 300 corresponding to the two polarizations of the radiation unit 100. For ease of subsequent description and distinction, the two phase shifters 300 are referred to as the first phase shifter 330 and the second phase shifter 340, respectively. At the same time, the two polarizations of the radiation unit 100 are referred to as the first polarization and the second polarization, respectively.

[0065] In this configuration, the two phase-shifting circuits 310 of the first phase shifter 330 are combined via an adapter (referred to as the first adapter) and then electrically connected to the feed component corresponding to the first polarization in the radiation unit 100, thereby providing the first polarization with a signal that has undergone phase shifting and combining processing. Similarly, the two phase-shifting circuits 310 of the second phase shifter 340 are combined via an adapter (referred to as the second adapter) and then electrically connected to the feed component corresponding to the second polarization in the radiation unit 100, providing the second polarization with a corresponding signal.

[0066] In this embodiment, combined with Figure 3 and Figure 4 or Figures 6 to 8 The first adapter and the second adapter share the same second adapter board 420. Specifically, the second combining circuit 431 of the combining network on the first adapter and the second combining circuit 441 of the combining network on the second adapter are both arranged on the same second adapter board 420, so that the two polarizations of the radiating element 100 located on the second adapter board 420 can be electrically connected to the respective second combining circuits of the two adapters. This optimizes the circuit layout structure of the antenna assembly 10, helps to improve its electrical performance, and ensures the stability and efficiency of signal transmission.

[0067] Furthermore, the first adapter plate 410 of the first adapter and the first adapter plate 410 of the second adapter are both inserted into the same second adapter plate 420, which effectively reduces the overall volume of the antenna assembly 10 and optimizes its spatial layout, enabling the antenna assembly 10 to achieve a more compact and reasonable structural arrangement within a limited space.

[0068] Combination Figure 2 and Figure 6 To facilitate the arrangement of the two phase shifters 300 in the phase shifting device 600 and to save installation space, the two phase shifters 300 are arranged in a parallel configuration. This parallel arrangement not only makes full use of the internal space of the antenna assembly 10 and reduces unnecessary space occupation, but also facilitates the miniaturization of the antenna assembly 10, meeting the needs of modern communication equipment for miniaturization and integration of the antenna assembly 10.

[0069] In one embodiment, the first combining circuit 510 is printed on the first adapter board 410; the second combining circuit 520 is printed on the second adapter board 420. Preferably, both the first adapter board 410 and the second adapter board 420 are circuit boards.

[0070] In a typical embodiment of the present invention, combined with Figure 1 and Figure 5 The antenna assembly 10 includes a plurality of radiating elements 100, which share the same reflector 200 and the same phase shifter 600. Specifically, the plurality of radiating elements 100 are arranged sequentially along the length of the reflector 200 to form a radiating array. The plurality of radiating elements 100 are arranged sequentially and orderly along the same axis to form a regular radiating array structure.

[0071] In another embodiment, the arrangement of the plurality of radiating elements 100 differs from that of the typical embodiment described above, as they are not arranged along the same axis. For example, the plurality of radiating elements 100 are arranged alternately on the left and right sides of a preset axis. This non-coaxial arrangement can meet the diverse requirements for the radiation characteristics of the antenna assembly 10 in different application scenarios, further expanding the flexibility and applicability of the antenna assembly 10.

[0072] The present invention also provides an antenna comprising a plurality of antenna components described above. Specifically, the plurality of antenna components are installed in a parallel arrangement, so that the radiating elements equipped in each antenna component can cooperate and work together to form a radiating array, thereby realizing the antenna radiation function and meeting diverse communication needs.

[0073] In one embodiment, the multiple antenna components share the same reflector, which reduces the number of parts required for the overall antenna, simplifies the antenna structure, reduces production costs and assembly difficulty, and effectively reduces electrical interference that may occur between different components, ensuring stable transmission of signals inside the antenna, thereby optimizing the electrical performance of the antenna and improving its operational stability and reliability.

[0074] The present invention also provides a base station, the base station including the antenna described above.

[0075] In summary, in the antenna assembly of the present invention, the phase shifter is equipped with multiple phase shifting circuits operating in different frequency bands. These multiple phase shifting circuits achieve signal combining operation through a combining network provided on the adapter that passes through the reflector. Specifically, the combining network establishes an electrical connection with the corresponding polarized feed component in the radiating element. Based on this electrical connection, the combining network can accurately output the combined signal to the feed component, thereby driving the radiating element to radiate the signal.

[0076] Furthermore, the antenna assembly of the present invention does not require the use of coaxial cables to achieve signal transmission and combining functions, which effectively simplifies the electrical structure of the antenna assembly and reduces problems such as signal loss and electromagnetic interference that may be caused by the use of coaxial cables. This significantly optimizes the electrical performance of the antenna assembly and improves its stability and reliability.

[0077] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention is not limited to the specific combination of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions as those in the present invention.

[0078] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. An antenna assembly, characterized by The antenna includes a reflector, radiation units arranged on opposite sides of the reflector, and a phase shifter device. The phase shifter device is provided with a phase shifter corresponding to each polarization of the radiation units. The phase shifter is provided with a plurality of phase shift circuits operating at different frequency bands. The phase shifter is connected to the radiation units through an adapter penetrating the reflector. The adapter is provided with a combining network. The combining network is electrically connected to the phase shift circuits to combine signals, and is also electrically connected to feeding components corresponding to the polarizations of the radiation units.

2. The antenna assembly of claim 1, wherein, The adapter includes a first adapter plate and a second adapter plate. The combining network includes a first combining circuit arranged on the first adapter plate and a second combining circuit arranged on the second adapter plate. The second adapter plate is arranged on the front side of the reflector, and the radiation units are arranged on the second adapter plate. The first combining circuit is electrically connected to the phase shift circuits. The second combining circuit is electrically connected to the feeding components. The first adapter plate penetrates the reflector and is connected to the second adapter plate, so that the first combining circuit is electrically connected to the second combining circuit.

3. The antenna assembly of claim 2, wherein, The first combining circuit includes a plurality of feeding branches. The feeding branches are electrically connected to the phase shift circuits. The feeding branches are electrically connected to form a combining branch. The combining branch is electrically connected to the second combining circuit.

4. The antenna assembly of claim 2, wherein, The first combining circuit includes a plurality of feeding branches. The feeding branches are electrically connected to the phase shift circuits. The feeding branches are electrically connected to the second combining circuit to combine signals.

5. An antenna assembly as claimed in claim 3 or 4, characterised in that, The second combining circuit is provided with a filter branch.

6. The antenna assembly of claim 3 or 4, wherein, The phase shifter includes a cavity. The cavity is provided with a plurality of inner cavities. The phase shift circuits are arranged in the inner cavities. The first adapter plate is provided with a plurality of plug-in pins. The feeding branches are arranged on the plug-in pins. The plug-in pins penetrate the cavity and are arranged in the inner cavities.

7. The antenna assembly of claim 6, wherein, The phase shifter includes two phase shift circuits operating at different frequency bands. The cavity includes a top plate and side plates arranged on both sides of the top plate. The top plate is arranged opposite to the reflector. The side plates are provided with plug-in holes. The plug-in pins of the first adapter plate are arranged in the plug-in holes, so that the feeding branches are electrically connected to the phase shift circuits.

8. The antenna assembly of claim 2, wherein, The phase shifter device is provided with a plurality of phase shifters corresponding to the polarizations of the radiation units. The second combining circuits corresponding to the phase shifters are arranged on the same second adapter plate.

9. The antenna assembly of claim 8, wherein, The radiation units are dual-polarized radiation units. The phase shifter device is provided with two phase shifters corresponding to the radiation units. The two phase shifters are arranged side by side.

10. The antenna assembly of claim 2, wherein, The first combining circuit is arranged on the front surface of the first adapter plate, the back surface of the first adapter plate is provided with a first ground layer, and the first ground layer is electrically connected with the cavity of the phase shifter; the second combining circuit is arranged on the front surface of the second adapter plate, the back surface of the second adapter plate is provided with a second ground layer, and the second ground layer is in surface contact with the front surface of the reflector plate.

11. The antenna assembly of claim 2, wherein, The antenna assembly comprises a plurality of radiating units, the plurality of radiating units share the same reflector plate and the same phase shifter, and the plurality of radiating units are arranged along the same axis or are not arranged along the same axis.

12. An antenna, characterized by The plurality of antenna assemblies are arranged side by side to form a radiating array.

13. The antenna of claim 12, wherein, The plurality of antenna assemblies share the same reflector plate.

14. A base station, characterized by The antenna comprises the antenna assembly.

Images