Radiating unit, antenna and base station

Abstract

The utility model relates to a radiation unit, an antenna and a base station, and relates to the technical field of communication. The radiation unit comprises two dipoles which are orthogonally arranged in a polarized mode, each dipole comprises two radiation single arms which are oppositely arranged, and the radiation single arms are symmetrically arranged in a surrounding mode; the radiation single arm comprises a first circuit and a second circuit, two ends of the first circuit are provided with two first capacitor sheets, two ends of the second circuit are provided with two second capacitor sheets, the first circuit is arranged on one side of the dielectric substrate, the second circuit is arranged on the other side of the dielectric substrate, and the first capacitor sheets are in coupling connection with the second capacitor sheets. When the radiation unit is applied to a low-frequency antenna, intermediate-frequency scattering generated on the low-frequency radiation unit can be remarkably reduced, so that distortion of an intermediate-frequency directional diagram of a multi-frequency common-aperture antenna is reduced.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a radiating element, antenna, and base station. Background Technology

[0002] With the advent of the 5G era, base station antenna frequencies are increasing, leading to greater space loss. To ensure signal coverage, the number of base stations will inevitably increase. Meanwhile, due to the unique requirements of 2G / 3G / 4G networks, base station antennas of different standards and frequency bands will coexist for a long time. To save costs, it is necessary to fully utilize existing base station site resources and integrate 5G base station antennas with existing 2G / 3G / 4G base station antennas to achieve a fusion design of multi-band, multi-standard base station antennas. Fusion design refers to 2G / 3G / 4G / 5G base station antennas sharing a single reflector and radome, achieving signal coverage for multiple network standards without increasing base station antenna equipment, space, or footprint. This greatly alleviates the shortage of base station site resources and reduces operators' operating costs. In traditional multi-frequency antennas, antennas of different frequency bands are placed within the same radome, resulting in severe inter-frequency coupling interference and significant distortion of the antenna radiation pattern. Utility Model Content

[0003] Therefore, it is necessary to provide a radiating element, antenna, and base station that can reduce antenna radiation pattern distortion in order to address the aforementioned technical problems.

[0004] In a first aspect, this application proposes a radiating unit, comprising: two dipoles arranged orthogonally with polarization, each dipole comprising two radiating arms arranged opposite each other, and each radiating arm being arranged symmetrically around the perimeter; each radiating arm comprising: a first line and a second line, wherein a first capacitor is disposed at each end of the first line, and a second capacitor is disposed at each end of the second line, wherein the first line is disposed on one side of a dielectric substrate, and the second line is disposed on the other side of the dielectric substrate, and the first capacitor and the second capacitor are coupled together.

[0005] In one embodiment, the first line includes two first conductor lines arranged symmetrically, one end of the two first conductor lines being connected, and the other end of the two first conductor lines being connected to the first capacitor sheet.

[0006] In one embodiment, the first conductor line includes: a first conductor segment, a second conductor segment, a third conductor segment, a first resonant circuit, and a second resonant circuit. The first resonant circuit is connected to the first conductor segment and the second conductor segment, the second resonant circuit is connected to the second conductor segment and the third conductor segment, and the third conductor segment is connected to the first capacitor sheet.

[0007] In one embodiment, the first conductor segment, the second conductor segment, and the third conductor segment are configured as a hollow structure, and the first resonant circuit and the second resonant circuit are configured as a reciprocating bending structure.

[0008] In one embodiment, the second line includes two second conductor lines arranged symmetrically, one end of the two second conductor lines being connected, and the other end of the two second conductor lines being connected to the second capacitor sheet.

[0009] In one embodiment, the second conductor circuit includes: a fourth conductor segment, a fifth conductor segment, a sixth conductor segment, a third resonant circuit, and a fourth resonant circuit. The third resonant circuit is connected to the fourth conductor segment and the fifth conductor segment, the fourth resonant circuit is connected to the fifth conductor segment and the sixth conductor segment, and the sixth conductor segment is connected to the second capacitor.

[0010] In one embodiment, the radiating unit further includes a third line disposed on one side of the dielectric substrate, wherein one end of each of the two second conductor lines is coupled together through the third line.

[0011] In one embodiment, the fourth conductor segment, the fifth conductor segment, and the sixth conductor segment are configured as hollow structures, and the third resonant circuit and the fourth resonant circuit are configured as reciprocating bending structures.

[0012] Secondly, this application also proposes an antenna comprising: two orthogonally placed baluns, a feed plate, and a radiating element as described in the first aspect embodiment, wherein the two baluns are respectively connected to the feed plate and the radiating element.

[0013] Thirdly, this application also proposes a base station, including: an antenna as described in the second aspect embodiment.

[0014] The aforementioned radiating element, antenna, and base station, by arranging two dipoles in the radiating element in a polarization orthogonal manner, with each dipole including two opposing radiating arms arranged in a symmetrical arrangement around the perimeter, and by placing a first capacitor plate at both ends of the first line in the radiating arm and a second capacitor plate at both ends of the second line, so that the first line and the second line are coupled together through the capacitor plates, when the radiating element is applied to a low-frequency antenna, can significantly reduce the intermediate frequency scattering generated on the low-frequency radiating element, thereby reducing the distortion of the intermediate frequency radiation pattern of the multi-frequency common aperture antenna. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a radiating element in one embodiment;

[0017] Figure 2 An exploded view of a radiating element in one embodiment;

[0018] Figure 3 This is a schematic diagram of the first circuit in one embodiment;

[0019] Figure 4 This is a schematic diagram of the hollow structure in one embodiment;

[0020] Figure 5 This is a schematic diagram of the hollow structure in another embodiment;

[0021] Figure 6 This is a schematic diagram of the hollow structure in yet another embodiment;

[0022] Figure 7 This is a schematic diagram of the hollow structure in another embodiment;

[0023] Figure 8 This is a schematic diagram of the second circuit in one embodiment;

[0024] Figure 9 An exploded view of the radiating element in another embodiment;

[0025] Figure 10 This is a schematic diagram of the third circuit in one embodiment;

[0026] Figure 11 This is a schematic diagram of the second circuit in another embodiment;

[0027] Figure 12 This is a radiation pattern of a conventional and a radiation element of this application in one embodiment;

[0028] Figure 13 This is a schematic diagram of an antenna in one embodiment.

[0029] Explanation of reference numerals in the attached figures:

[0030] First radiating arm 101, second radiating arm 102, third radiating arm 103, fourth radiating arm 104, first circuit 100, second circuit 200, first capacitor sheet 300, second capacitor sheet 400, dielectric substrate 500, hollow area 600, third circuit 700, balun 810, feed board 820, radiating unit 830, first conductor line 110, first conductor segment 111, second conductor segment 112, third conductor segment 113, first resonant circuit 114, second resonant circuit 115, second conductor line 210, fourth conductor segment 211, fifth conductor segment 212, sixth conductor segment 213, third resonant circuit 214, fourth resonant circuit 215. Detailed Implementation

[0031] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0033] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.

[0034] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. Furthermore, in the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if there is transmission of electrical signals or data between the connected objects.

[0035] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0036] In one embodiment, such as Figure 1 and Figure 2 As shown, a radiating unit is provided, including: two dipoles arranged orthogonally with polarization, each dipole including two radiating arms arranged opposite each other, and each radiating arm arranged symmetrically around the perimeter; each radiating arm includes: a first line 100 and a second line 200, a first capacitor 300 is respectively disposed at both ends of the first line 100, and a second capacitor 400 is respectively disposed at both ends of the second line 200, the first line 100 is disposed on one side of the dielectric substrate 500, the second line 200 is disposed on the other side of the dielectric substrate 500, and the first capacitor 300 and the second capacitor 400 are coupled together.

[0037] Specifically, the radiating unit in this embodiment is used to emit and receive electromagnetic waves, and can take the form of a patch, slot, etc. The radiating unit consists of two orthogonally polarized dipoles, meaning the radiation directions of the two dipoles are perpendicular to each other, and they can be arranged in a cross shape or L-shape, etc. Each dipole includes two opposing radiating arms, and the radiating arms are arranged symmetrically around each other. Specific examples are provided. Figure 1 The first radiating arm 101 and the second radiating arm 102 form a first dipole, and the third radiating arm 103 and the fourth radiating arm 104 form a second dipole. The radiation directions of the first dipole and the second dipole are perpendicular to each other. It can be understood that the structures of the radiating arms in the radiating unit are all the same; therefore, a detailed explanation will be given using the specific structure of one of the radiating arms as an example.

[0038] like Figure 2 As shown, the radiating single arm includes a first line 100 and a second line 200. A first capacitor plate 300 is disposed at each end of the first line 100, and a second capacitor plate 400 is disposed at each end of the second line 200. The capacitor plates can be metal sheet structures and can be rectangular, circular, or other irregular shapes. The first line 100 is disposed on one side of the dielectric substrate 500, and the second line 200 is disposed on the other side of the dielectric substrate 500. The first capacitor plate 300 and the second capacitor plate 400 at corresponding positions are coupled and connected, thereby connecting the first line 100 and the second line 200.

[0039] When electromagnetic waves reach the radiating element, they induce currents on the first line 100 and the second line 200, respectively. Since the two lines are located on different sides of the dielectric substrate 500, a certain degree of electromagnetic coupling exists between them. The strength and characteristics of this coupling can be controlled by adjusting the shape and size of the two lines. Simultaneously, the capacitor plates at both ends of the lines can further adjust this coupling effect at different frequencies. The size and shape of the capacitor plates can be adjusted to achieve selective response to electromagnetic waves of different frequency bands. By rationally designing the size and shape of the capacitor plates, strong capacitive coupling can be formed in specific frequency bands, while weaker coupling occurs in other frequency bands. This frequency selectivity helps reduce interference between different frequency bands while maintaining good antenna performance in the target frequency band. Furthermore, by setting the first capacitor plate 300 and the second capacitor plate 400, when the radiating element is applied to a low-frequency antenna, the intermediate frequency scattering generated on the low-frequency radiating element can be significantly reduced, thereby reducing the distortion of the intermediate frequency radiation pattern of the multi-frequency common-aperture antenna.

[0040] In one embodiment, such as Figure 3 As shown, the first line 100 includes two first conductor lines 110 arranged symmetrically, one end of the two first conductor lines 110 being connected, and the other end of the two first conductor lines 110 being connected to a first capacitor sheet 300.

[0041] Specifically, the first line 100 includes two symmetrically arranged first conductor lines 110. One end of these two conductor lines is connected to form a closed loop, and the other end is connected to the first capacitor plate 300. The main axes of the two first conductor lines 110 can be arranged perpendicularly to each other. When connecting one end of the two first conductor lines 110, they can be directly electrically connected or coupled. When the other end of the two first conductor lines 110 is connected to the first capacitor plate 300, it can be directly electrically connected, connected via a microstrip line, or connected via a transition structure, etc. The two first conductor lines 110 are set to have the same length and width. For example, the length can be one-quarter of the operating wavelength, and the width can be adjusted according to the required impedance characteristics. The size and shape of the first capacitor plate 300 can also be optimized as needed to achieve the best coupling effect. The symmetrical structure of the first line 100 in this embodiment ensures the balance of radiation performance and reduces the distortion of the radiation pattern. At the same time, the two symmetrically arranged first conductor lines 110 increase the current path, which can improve radiation efficiency and help improve the overall performance of the antenna.

[0042] In one embodiment, such as Figure 3As shown, the first conductor line 110 includes: a first conductor segment 111, a second conductor segment 112, a third conductor segment 113, a first resonant line 114, and a second resonant line 115. The first resonant line 114 is connected to the first conductor segment 111 and the second conductor segment 112, and the second resonant line 115 is connected to the second conductor segment 112 and the third conductor segment 113, respectively. The third conductor segment 113 is connected to the first capacitor sheet 300.

[0043] Specifically, in this embodiment, the first conductor line 110 is constructed using a combination of multiple conductor segments and resonant circuits. The first conductor segment 111, the second conductor segment 112, and the third conductor segment 113 can be configured with different lengths and widths to adjust the current distribution. For example, the first conductor segment 111 can be designed to be longer to increase radiation efficiency; the second conductor segment 112 can be designed to be shorter to adjust impedance; and the third conductor segment 113 can be designed according to the connection requirements with the first capacitor sheet 300. The first resonant circuit 114 and the second resonant circuit 115 can also adopt a serpentine or spiral structure, which can achieve a longer electrical length within a limited space, thereby adjusting the resonant frequency. The first resonant circuit 114 and the second resonant circuit 115 can be equivalent to a parallel LC circuit. The connection method between the conductor segments and the resonant circuit can also be adjusted. For example, the first resonant circuit 114 can be vertically connected to the first conductor segment 111 and the second conductor segment 112, or the first resonant circuit 114 can be obliquely connected to the first conductor segment 111 and the second conductor segment 112. Different connection methods can affect the current flow path, thereby affecting the radiation characteristics. The multi-segment conductor design in this embodiment allows for more flexible control of current distribution, and the inclusion of a resonant circuit provides additional frequency adjustment capability. Furthermore, when the radiating element is applied to a low-frequency antenna, it significantly reduces intermediate-frequency scattering generated on the low-frequency radiating element, thereby reducing the distortion of the intermediate-frequency radiation pattern in the multi-frequency common-aperture antenna.

[0044] In one embodiment, the first conductor segment 111, the second conductor segment 112, and the third conductor segment 113 are configured with a hollow structure. Specifically, configuring the first conductor segment 111, the second conductor segment 112, and the third conductor segment 113 with a hollow structure can reduce the use of metal materials, reduce the weight of the antenna, and at the same time, improve the electromagnetic performance of the antenna, such as reducing the Q value of the antenna and widening the operating bandwidth of the antenna. The hollow structure can be implemented in various ways, such as using a grid-like, honeycomb-like, or other regular or irregular opening structure. The hollow structure of different conductor segments can be the same or different, and the hollow structure can be selected according to specific application requirements and electromagnetic performance requirements. Specific examples include... Figure 4 As shown, the hollow structure is formed by a rectangular hollow area 600 in the conductor segment; as Figure 5 As shown, the hollow structure is formed by a T-shaped hollow area 600 in the conductor segment; Figure 6 As shown, the hollow structure is formed by two symmetrical L-shaped hollow areas 600 in the conductor segment; Figure 7 As shown, the hollow structure is formed by an I-shaped hollow area 600 in the conductor segment.

[0045] In one embodiment, the first resonant circuit 114 and the second resonant circuit 115 are configured as a reciprocating bending structure. Specifically, by configuring the first resonant circuit 114 and the second resonant circuit 115 as a reciprocating bending structure, the circuit length can be increased within a limited space, thereby achieving a lower resonant frequency. This structural design can adjust the inductance and capacitance of the antenna, thereby optimizing the impedance matching of the antenna. The reciprocating bending structure can take various forms, such as S-shaped, Z-shaped, or other tortuous shapes, to adapt to different space constraints and electrical performance requirements.

[0046] In one embodiment, such as Figure 8 As shown, the second line 200 includes two second conductor lines 210 arranged symmetrically, one end of the two second conductor lines 210 being connected, and the other end of the two second conductor lines 210 being connected to the second capacitor sheet 400.

[0047] Specifically, the second line 200 includes two symmetrically arranged second conductor lines 210. One end of these two conductor lines is connected to form a closed loop, and the other end is connected to the second capacitor plate 400. The main axes of the two second conductor lines 210 can be arranged perpendicularly to each other. When connecting one end of the two second conductor lines 210, they can be directly electrically connected or coupled. When connecting the other end of the two second conductor lines 210 to the second capacitor plate 400, they can be directly electrically connected, connected via a microstrip line, or connected via a transition structure, etc. The two second conductor lines 210 are set to have the same length and width; for example, the length can be one-quarter of the operating wavelength, and the width can be adjusted according to the required impedance characteristics. The size and shape of the second capacitor plate 400 can also be optimized as needed to achieve the best coupling effect. The symmetrical structure of the second line 200 in this embodiment ensures the balance of radiation performance and reduces the distortion of the radiation pattern. At the same time, the two symmetrically arranged second conductor lines 210 increase the current path, which can improve radiation efficiency and help improve the overall performance of the antenna.

[0048] In one embodiment, such as Figure 8 As shown, the second conductor line 210 includes: a fourth conductor segment 211, a fifth conductor segment 212, a sixth conductor segment 213, a third resonant line 214, and a fourth resonant line 215. The third resonant line 214 is connected to the fourth conductor segment 211 and the fifth conductor segment 212, and the fourth resonant line 215 is connected to the fifth conductor segment 212 and the sixth conductor segment 213. The sixth conductor segment 213 is connected to the second capacitor sheet 400.

[0049] Specifically, in this embodiment, the second conductor line 210 is constructed using a combination of multiple conductor segments and resonant circuits. The fourth conductor segment 211, the fifth conductor segment 212, and the sixth conductor segment 213 can be configured with different lengths and widths to adjust the current distribution. For example, the fourth conductor segment 211 can be designed to be longer to increase radiation efficiency; the fifth conductor segment 212 can be designed to be shorter to adjust impedance; and the sixth conductor segment 213 can be designed according to the connection requirements with the second capacitor sheet 400. The third resonant circuit 214 and the fourth resonant circuit 215 can also adopt a serpentine or spiral structure, which can achieve a longer electrical length within a limited space, thereby adjusting the resonant frequency. The third resonant circuit 214 and the fourth resonant circuit 215 can be equivalent to a parallel LC circuit. The connection method between the conductor segments and the resonant circuit can also be adjusted. For example, the third resonant circuit 214 can be vertically connected to the fourth conductor segment 211 and the fifth conductor segment 212, or the third resonant circuit 214 can be obliquely connected to the fourth conductor segment 211 and the fifth conductor segment 212. Different connection methods can affect the current flow path, and thus affect the radiation characteristics. The multi-segment conductor design of this embodiment can more flexibly control the current distribution, and additional frequency adjustment capability can be provided by setting the resonant circuit. At the same time, when the radiating element is applied to a low-frequency antenna, the intermediate frequency scattering generated on the low-frequency radiating element can be significantly reduced, thereby reducing the distortion of the intermediate frequency radiation pattern of the multi-frequency common-aperture antenna.

[0050] In one embodiment, such as Figure 9 As shown, the radiating unit also includes a third line 700, which is disposed on one side of the dielectric substrate 500, and one end of the two second conductor lines 210 is coupled to each other through the third line 700.

[0051] Specifically, in this embodiment, one end of each of the two second conductor lines 210 is coupled together via a third line 700. Under this configuration, as... Figure 10 As shown, both the first line 100 and the third line 700 are disposed on one side of the dielectric substrate 500. Figure 11As shown, the two second conductor lines 210 in the second line 200 disposed on the other side of the dielectric substrate 500 are interrupted and coupled together by a third line 700. The shape and structure of the third line 700 can be configured according to the shape and structure of the interrupted region between the two second conductor lines 210. In some embodiments, the third line 700 is configured as an isosceles right triangle. In this embodiment, by setting the third line 700, the two second conductor lines 210 can be flexibly connected. By adjusting the position, shape, and connection method of the third line 700, the electromagnetic relationship between the two second conductor lines 210 can be controlled more flexibly, thereby optimizing the performance of the radiating unit. At the same time, the coupling connection method can improve the electrical characteristics of the radiating unit, such as bandwidth, efficiency, and directivity.

[0052] In one embodiment, the fourth conductor segment 211, the fifth conductor segment 212, and the sixth conductor segment 213 are configured with a hollow structure, and the third resonant circuit 214 and the fourth resonant circuit 215 are configured with a reciprocating bending structure. Specifically, configuring the fourth conductor segment 211, the fifth conductor segment 212, and the sixth conductor segment 213 with a hollow structure can reduce the use of metal materials, reduce the weight of the antenna, and at the same time, improve the electromagnetic performance of the antenna, such as reducing the Q value of the antenna and widening the operating bandwidth of the antenna. The hollow structure can be implemented in various ways, such as using a grid-like, honeycomb-like, or other regular or irregular opening structure. The hollow structure of different conductor segments can be the same or different, and the hollow structure can be selected according to specific application requirements and electromagnetic performance requirements.

[0053] In one embodiment, the third resonant circuit 214 and the fourth resonant circuit 215 are configured with a reciprocating bending structure. Specifically, by configuring the third resonant circuit 214 and the fourth resonant circuit 215 with a reciprocating bending structure, the circuit length can be increased within a limited space, thereby achieving a lower resonant frequency. This structural design can adjust the inductance and capacitance of the antenna, thereby optimizing the impedance matching of the antenna. The reciprocating bending structure can take various forms, such as S-shaped, Z-shaped, or other tortuous shapes, to adapt to different space constraints and electrical performance requirements.

[0054] The advantages of the radiating unit of this application are described in detail below with a specific embodiment. Figure 9 Taking the radiating unit shown as an example, the radiating unit is equipped with a first line 100, a second line 200, and a third line 700. Figure 12 As shown, Figure 9 When the radiating element shown is applied in a low-frequency radiating arm, the mid-frequency scattering pattern generated by it is significantly suppressed compared with that of conventional radiating elements. It has stronger directionality and reduces the impact on other (high-frequency) radiating elements.

[0055] In one embodiment, such as Figure 13 As shown, this application also provides an antenna, including: two orthogonally placed baluns 810, a feed board 820, and a radiating element 830 as described in the above embodiment. The two baluns 810 are respectively connected to the feed board 820 and the radiating element 830. Specifically, in the antenna proposed in this application, the two orthogonally placed baluns 810 can be implemented in various ways. For example, microstrip baluns, slotted baluns, or coaxial baluns can be used, and the orthogonal placement can be vertically crossed or parallel misaligned. The feed board 820 can be fabricated using a printed circuit board, on which an appropriate feeding network can be designed to achieve signal distribution and phase adjustment. In this embodiment, the antenna has two dipoles arranged in a polarization orthogonal manner in the radiating element 830, and each dipole includes two radiating arms arranged opposite each other. The radiating arms are arranged in a symmetrical manner around each other. A first capacitor plate 300 is provided at both ends of the first line 100 in the radiating arm, and a second capacitor plate 400 is provided at both ends of the second line 200, so that the first line 100 and the second line 200 are coupled together through the capacitor plates. When the radiating element 830 is applied to a low-frequency antenna, the intermediate frequency scattering generated on the low-frequency radiating element 830 can be significantly reduced, thereby reducing the distortion of the intermediate frequency radiation pattern of the multi-frequency common aperture antenna.

[0056] In one embodiment, this application also provides a base station, including the antenna described in the above embodiments.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A radiating unit, characterized in that, include: Two dipoles are orthogonally polarized, each dipole comprising two opposing radiating arms, the radiating arms being arranged in a circumferential symmetrical manner; The radiating single arm includes: a first line and a second line, wherein a first capacitor is disposed at each end of the first line and a second capacitor is disposed at each end of the second line, the first line is disposed on one side of the dielectric substrate and the second line is disposed on the other side of the dielectric substrate, and the first capacitor and the second capacitor are coupled together.

2. The radiating unit according to claim 1, characterized in that, The first circuit includes two first conductor lines arranged symmetrically, one end of the two first conductor lines being connected, and the other end of the two first conductor lines being connected to the first capacitor sheet.

3. The radiating unit according to claim 2, characterized in that, The first conductor circuit includes: a first conductor segment, a second conductor segment, a third conductor segment, a first resonant circuit, and a second resonant circuit. The first resonant circuit is connected to the first conductor segment and the second conductor segment, the second resonant circuit is connected to the second conductor segment and the third conductor segment, and the third conductor segment is connected to the first capacitor.

4. The radiating unit according to claim 3, characterized in that, The first conductor segment, the second conductor segment, and the third conductor segment are configured as hollow structures, and the first resonant circuit and the second resonant circuit are configured as reciprocating bending structures.

5. The radiating element according to claim 1, characterized in that, The second circuit includes two second conductor lines arranged symmetrically, one end of the two second conductor lines being connected, and the other end of the two second conductor lines being connected to the second capacitor sheet.

6. The radiating element according to claim 5, characterized in that, The second conductor circuit includes: a fourth conductor segment, a fifth conductor segment, a sixth conductor segment, a third resonant circuit, and a fourth resonant circuit. The third resonant circuit connects the fourth conductor segment and the fifth conductor segment, the fourth resonant circuit connects the fifth conductor segment and the sixth conductor segment, and the sixth conductor segment connects to the second capacitor.

7. The radiating element according to claim 5, characterized in that, Also includes: The third line is disposed on one side of the dielectric substrate, and one end of each of the two second conductor lines is coupled to each other through the third line.

8. The radiating element according to claim 6, characterized in that, The fourth conductor segment, the fifth conductor segment, and the sixth conductor segment are configured with a hollow structure, and the third resonant circuit and the fourth resonant circuit are configured with a reciprocating bending structure.

9. An antenna, characterized in that, include: Two orthogonally placed baluns, a feed plate, and a radiating unit as described in any one of claims 1 to 8, wherein the two baluns are respectively connected to the feed plate and the radiating unit.

10. A base station, characterized in that, Including the antenna as described in claim 9.

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