Radiating unit, antenna and base station

Abstract

The invention provides a radiation unit, an antenna and a base station, the radiation unit comprises two pairs of radiation arms which are arranged in a polarization orthogonality mode, each radiation arm comprises a radiation body and a feed body, a hollow groove is formed in each radiation body, each feed body is arranged in the corresponding hollow groove, and the radiation arms are arranged in the hollow grooves. A coupling gap is formed between the outer periphery of the feed body and the inner periphery of the hollow groove, and the feed body is used for receiving external current. The radiation unit has a common-mode scattering suppression effect, can effectively reduce coupling between high and medium frequency arrays, solves the problem of common-mode resonance, improves the intermodulation level of the antenna, reduces the size and weight of the antenna, and can reduce the cost of the antenna.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of mobile communication, and particularly relates to a radiation unit, an antenna provided with the radiation unit, and a base station provided with the antenna. BACKGROUND

[0002] With the rapid development of mobile communication technology, the performance requirements of communication equipment are continuously improved. As an indispensable important component in a communication system, the comprehensive performance of an antenna is directly related to the networking effect and communication quality of the communication system. In today's society, people's spiritual and cultural needs are growing, and large-scale sports events, cultural performances, exhibitions and conferences are frequently held in venues. These activities attract a large number of audience, staff and media personnel, making the personnel in the venue dense, and putting forward very high requirements on the communication quality.

[0003] The existing venue antenna has many shortcomings. First, uneven signal coverage is a prominent problem, especially in the high places of the stands, the edges of the venue and other areas, the signal strength is weak, resulting in poor communication effect. Second, the capacity of the existing venue antenna is limited, and communication jamming phenomenon is easy to occur when the personnel are dense, which seriously affects the user experience. Moreover, the traditional dipole design leads to low antenna gain, which is difficult to meet the diversified communication needs in complex venue environment. In addition, with the multi-frequency development of the venue antenna, its size and weight are increasing. In order to reduce the interference to the adjacent array, it is usually necessary to increase the distance between the arrays, which further makes the venue antenna larger and heavier.

[0004] Therefore, the existing venue antenna has many problems in signal coverage, capacity, gain, size, weight and cost, etc. These problems limit the performance improvement of the venue communication system, and it is difficult to meet the growing communication needs. Therefore, a new type of venue antenna design is urgently needed to overcome the shortcomings of the prior art and achieve better communication effect and higher performance. SUMMARY

[0005] The primary object of the present application is to solve at least one of the above problems and provide a radiation unit, an antenna and a base station.

[0006] To achieve the various objects of the present application, the present application adopts the following technical solutions:

[0007] To achieve one of the objects of the present application, a radiation unit is provided, which comprises two pairs of radiation arms arranged in polarization quadrature, the radiation arm comprises a radiator and a feed body, a hollow slot is formed in the radiator, the feed body is arranged in the hollow slot, a coupling gap is formed between the outer periphery of the feed body and the inner periphery of the hollow slot, and the feed body is used for receiving external current.

[0008] In one embodiment, the coupling gap is set to have the same width as the coupling gap.

[0009] In one embodiment, the inner profile of the hollowed groove has the same shape as the outer profile of the feed body.

[0010] In one embodiment, the outer profile of the radiating body has substantially the same shape as the outer profile of the feed body.

[0011] In one embodiment, the outer profile of the radiating body is any one of a circle, an ellipse, and a polygon.

[0012] In one embodiment, a wave structure is provided on the outer periphery of the feed body, and the wave structure extends along the outer periphery of the feed body.

[0013] In one embodiment, the two pairs of radiating arms are alternately arranged in a counterclockwise direction, and the radiating bodies of the two pairs of radiating arms are connected to form an integrated structure.

[0014] In one embodiment, a separation groove is provided at the joint of adjacent radiating bodies, and the separation groove is recessed from the outer periphery of the radiating body towards the polarization center of the radiating unit.

[0015] In one embodiment, the radiating unit further comprises a dielectric substrate and a pair of baluns, the two pairs of radiating arms are arranged on the dielectric substrate, and the pair of baluns feed the two pairs of radiating arms, respectively. The balun comprises a dielectric plate and a feed line and a ground line arranged on opposite sides of the dielectric plate. One end of the ground line forms a ground terminal, and the other end feeds a corresponding pair of radiating arms. The feed line is used to receive external current.

[0016] In one embodiment, the feed line comprises a pair of parallel feed segments, and the ground line comprises a pair of parallel ground segments. The pair of feed segments and the pair of ground segments are coupled in parallel. One end of the ground segment is electrically connected to the corresponding radiating arm.

[0017] In one embodiment, a notch is formed in the feed segment or the ground segment, and the area of the notch is adjusted to control the coupling amount between the coupled feed segment and the ground segment.

[0018] An antenna is provided for one of the purposes of the present application, comprising a reflector and a radiating array arranged on the reflector. The radiating array comprises a medium-frequency radiating column and a high-frequency radiating column arranged coaxially or in parallel. The medium-frequency radiating column comprises a plurality of medium-frequency radiating units, and the high-frequency radiating column comprises a plurality of high-frequency radiating units. The high-frequency radiating unit is the radiating unit of any one of the preceding purposes.

[0019] A base station is provided for adapting to one of the objects of the present application and comprises an antenna as defined in the preceding object.

[0020] The present application has many advantages over the prior art, including but not limited to:

[0021] The hollow groove is provided in the radiator of the radiation unit of the present application, and the feed body is arranged therein, and a coupling gap is formed between the outer periphery of the feed body and the inner periphery of the hollow groove, which ingeniously changes the distribution and transmission path of the current. When external current passes through the feed body, the presence of the coupling gap makes the coupling between the radiator and the feed body more orderly and controllable, reducing unnecessary scattering and reflection, thereby effectively reducing the coupling between high and intermediate frequency arrays. This reduction in coupling helps to reduce the mutual interference between antennas of different frequency bands, ensuring that antennas of each frequency band can work independently and stably, solving the problem of common mode resonance and improving the overall performance of the antenna system.

[0022] The coupling gap is formed between the feed body and the radiator, and the feed body and the radiator are coupled, so that the antenna is more linear in processing different frequency signals during operation. This reduces the generation of non-linear distortion, thereby reducing the strength of intermodulation products, improving the pure reception and transmission capability of the antenna to signals, and ensuring the quality and reliability of communication signals.

[0023] The combination of the radiator and the feed body makes the antenna more efficient in space utilization. At the same time, this reduces the use of unnecessary materials and reduces the weight of the antenna. This is of great significance for some application scenarios that have strict requirements on space and weight, as it not only reduces installation and transportation costs, but also improves the flexibility and adaptability of the equipment.

[0024] In places such as large venues where there are many people and high communication needs, the antenna needs to be able to provide high-capacity, stable signal coverage. The excellent performance of the present radiation unit enables the antenna to better meet this demand. Due to the advantages of common mode scattering suppression, reduction of array coupling and improvement of intermodulation level, the antenna can reduce signal interference and distortion during operation, ensuring stable signal transmission. At the same time, the reduced size and weight enable the antenna to be more flexibly arranged within the venue, achieving more uniform signal coverage. High-capacity, stable signal coverage can meet the needs of a large number of users communicating simultaneously, reducing communication interruptions and weak signal situations, thereby improving communication efficiency and quality and providing users with a better communication experience. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, in which:

[0026] Figure 1A structure diagram of a radiation unit of a typical embodiment of the present application.

[0027] Figure 2 A top view diagram of a radiation unit of a typical embodiment of the present application.

[0028] Figure 3 A top view diagram of a radiation unit of another embodiment of the present application.

[0029] Figure 4 A front view diagram of a balun of a radiation unit of a typical embodiment of the present application.

[0030] Figure 5 A back view diagram of one of the baluns of a radiation unit of a typical embodiment of the present application.

[0031] Figure 6 A back view diagram of another balun of a radiation unit of a typical embodiment of the present application.

[0032] Figure 7 A structure diagram of an antenna of a typical embodiment of the present application. DETAILED DESCRIPTION

[0033] Embodiments of the present application are described in detail below with reference to several drawings. The embodiments of this application described below are examples of one specific embodiment of the present application and are intended to provide an overview or framework for understanding the nature and character of the application as it is claimed. However, the application is not limited to the embodiments disclosed herein but instead is limited only by the claims that follow. Examples of embodiments of the present application are illustrated in the accompanying drawings, throughout which like reference numerals denote like structures or functions, and in which:

[0034] Those skilled in the art will appreciate that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and / or "including," as used herein, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present. In addition, the word "coupling" or "coupled" as used herein includes the appending of wireless connections or wireless couplings. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0035] Those skilled in the art can understand that, unless otherwise defined, all terms (including 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. It should also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0036] The present application provides a radiation unit, which has the effect of common mode scattering suppression, can effectively reduce the coupling between high and intermediate frequency arrays, solve the problem of common mode resonance, improve the intermodulation level of the antenna, reduce the size and weight of the antenna, reduce the cost of the antenna, realize high-capacity and stable signal coverage in the venue, and improve the communication efficiency and quality.

[0037] In a typical embodiment of the present application, in combination Figure 1 And Figure 2 Or Figure 3 The radiation unit 10 comprises two pairs of radiation arms 110 arranged in a polarization orthogonal manner.

[0038] The radiation arm 110 comprises a feed body 120 and a radiation body 130. The radiation body 130 has a hollow area, which is referred to as a hollow slot 131, and the feed body 120 is arranged in the hollow slot 131. A gap, referred to as a coupling gap 140, is formed between the outer periphery of the feed body 120 and the inner periphery of the hollow slot 131. The feed body 120 and the radiation body 130 are not in direct physical contact, and are coupled and electrically connected through the coupling gap 140.

[0039] The feed body 120 is used to receive external current and couple the received external current to the radiation body 130 through the coupling gap 140. The radiation body 130 radiates signals externally under the excitation of external current, that is, realizes the function of signal radiation of the radiation arm 110. In this embodiment, the width of the coupling gap 140 is recommended to be 0.06 times the wavelength of the working frequency of the radiation unit 10, but this value should not be regarded as a limitation of the present application.

[0040] Further, in the embodiment, the coupling gaps 140 are arranged at equal intervals along the extending path. It can be understood that the outer contour shape of the feed body 120 is the same as the inner contour shape of the hollow groove 131, and the outer contour area of the feed body 120 is smaller than the inner contour area of the hollow groove 131. Thus, when the feed body 120 is arranged in the hollow groove 131, the outer periphery of the feed body 120 and the inner periphery of the hollow groove 131 can be arranged at equal intervals. Since the coupling gaps 140 are arranged at equal intervals, uniform coupling feeding between the feed body 120 and the radiator 130 can be achieved, and uneven current distribution is effectively avoided, thereby ensuring the radiation performance of the radiation unit 10.

[0041] In the embodiment, the feed body 120 and the radiator 130 are arranged along the polarization axis corresponding to the polarization direction. Specifically, the radiator 130 is arranged at the outer side of the feed body 120 relative to the polarization axis.

[0042] In an embodiment, the shape of the feed body 120 can be selected as any one of a circle, an ellipse, and a polygon, but this shape range should not be regarded as a limitation of the embodiment. Further, it is recommended that the feed body 120 adopt a polygonal shape, and the number of sides of the polygon should be greater than or equal to 3, but this recommendation should not be understood as a limitation of the present application.

[0043] For the convenience of describing the present application, in the embodiment, the feed body 120 is taken as an example of a rectangular shape, but this example should not be understood as a limitation of the present application. Accordingly, the shape of the hollow groove 131 is consistent with the shape of the feed body 120. It can be understood that when the feed body 120 is a rectangular shape, the hollow groove 131 is also a rectangular shape.

[0044] In an embodiment, in combination with Figure 2 , the outer periphery of the feed body 120 is provided with a wave structure, which is referred to as a first wave structure 121, and the first wave structure 121 is arranged along the outer periphery of the feed body 120. It can be understood that, in order to ensure that the coupling gaps 140 between the outer periphery of the feed body 120 and the inner periphery of the hollow groove 131 are arranged at equal intervals, the inner periphery of the hollow groove 131 is also provided with a wave structure, which is referred to as a second wave structure 132. Since the first wave structure 121 on the outer periphery of the feed body 120 and the second wave structure 132 on the inner periphery of the hollow groove 131 are both repeated bending structures, such a structure arrangement can increase the length of the coupling gaps 140, thereby improving the coupling efficiency between the feed body 120 and the radiator 130, and ultimately improving the electrical performance of the radiation unit 10.

[0045] In the embodiment, the first wave structure 121 and the second wave structure 132 are recommended to adopt any one of square wave structure, sine wave structure or sawtooth wave structure. For the purpose of illustrating the present application, the first wave structure 121 on the outer periphery of the feeding body 120 and the second wave structure 132 on the inner periphery of the hollow groove 131 are taken as examples to be square wave structures in the embodiment, but the examples should not be understood as limiting the present application.

[0046] In an embodiment, the outer contour shape of the radiator 130 can be selected from any one of circle, ellipse and polygon, but the shape range should not be regarded as limiting the embodiment. Further, the radiator 130 is recommended to adopt polygonal shape, and the number of sides of the polygon should be greater than or equal to 3, but the recommendation should not be understood as limiting the present application. Meanwhile, in the embodiment, the outer contour shape of the radiator 130 is recommended to be the same or substantially the same as the outer contour shape of the feeding body 120, but the recommendation should not be understood as limiting the present application.

[0047] For the purpose of illustrating the present application, the outer contour shape of the radiator 130 is taken as rectangular shape, and the outer contour shape of the feeding body 120 is also taken as rectangular shape in the embodiment, but the examples should not be understood as limiting the present application.

[0048] In a typical embodiment of the present application, in combination with Figure 2 or Figure 3 , the four radiating arms 110 included in the two pairs of radiating arms 110 are arranged in sequence in counterclockwise direction. In the counterclockwise direction, the radiating arm 110 belonging to one polarization is adjacent to and connected with the two radiating arms 110 of another polarization. Specifically, in the counterclockwise direction, for the two adjacent radiating arms 110, the radiator 130 of one radiating arm 110 is connected with the radiator 130 of the other radiating arm 110. The radiators 130 of the four radiating arms 110 are connected with each other, thereby forming an integrated structure, i.e., a radiating sheet.

[0049] In the embodiment, the joint position of the two adjacent radiators 130 forms a joint area 150. The joint area 150 is provided with a separation groove 151, which is recessed from the outer periphery of the joint area 150 towards the direction of the polarization center, and the separation groove 151 is a blind groove. It can be understood that the separation groove 151 does not penetrate through the joint area 150, so as to ensure that the two adjacent radiators 130 still remain connected at the joint area 150. In the embodiment, the width of the separation groove 151 is recommended to be 0.15 times the wavelength of the working frequency of the radiating unit 10, but the value should not be regarded as limiting the present application.

[0050] In view of the fact that the radiating sheet is formed by four radiating bodies 130 connected with each other, and the partition groove 151 is arranged between the two adjacent radiating arms 110, it can be understood that the radiating sheet is provided with four partition grooves 151. By arranging the four partition grooves 151, the current transmission path on the radiating sheet can be effectively prolonged, and the electrical performance of the radiating sheet is improved, and the radiation performance of the radiating unit 10 is optimized.

[0051] In the embodiment, the coupling gap 140 and the partition groove 151 together form an LC resonant circuit (referred to as a first LC resonant circuit). The first LC resonant circuit can work at a predetermined resonant frequency, so that the radiating unit 10 can adapt to different frequency bands, optimize the impedance matching effect, and improve the communication performance of the radiating unit 10.

[0052] In the typical embodiment of the application, the radiating arm 110 further comprises a feeding portion 111. The feeding portion 111 is arranged near the polarization center, and the feeding portion 111 is electrically connected with the feeding body 120. The main function of the feeding portion 111 is to receive external current, which is transmitted from the feeding portion 111 to the feeding body 120 and the radiating body 130 in turn. The feeding portion 111 of each of the four radiating arms 110 is arranged near the polarization center, and such a layout facilitates the four feeding portions 111 to feed the corresponding radiating arms 110.

[0053] In the embodiment, the hollow groove 131 formed in the radiating body 130 is provided with an opening corresponding to the position of the feeding portion 111. Through the opening, the feeding body 120 arranged in the hollow groove 131 can be connected with the feeding portion 111, and then the feeding portion 111 can feed the feeding body 120.

[0054] In combination with Figure 1 , the radiating unit 10 further comprises a dielectric substrate 160 and a pair of baluns 170. The two pairs of radiating arms 110 are arranged on the front or back surface of the dielectric substrate 160. The pair of baluns 170 feeds the two pairs of radiating arms 110 respectively. Specifically, one of the baluns 170 provides feeding for the two radiating arms 110 of one polarization corresponding thereto, and the other balun 170 provides feeding for the two radiating arms 110 of the other polarization corresponding thereto, that is, the two baluns 170 are arranged corresponding to two polarizations respectively.

[0055] In combination with Figure 4 and Figure 5 or Figure 6The balun 170 comprises a dielectric plate 171, a feeding line 172 and a grounding line 173. The feeding line 172 is arranged on the front surface of the dielectric plate 171, the grounding line 173 is arranged on the back surface of the dielectric plate 171, and the feeding line 172 and the grounding line 173 are connected by coupling. The feeding line 172 is used to connect with an external feeding element, so as to facilitate the external feeding element to feed the feeding line 172. The grounding line 173 extends along the axial direction of the dielectric plate 171, and the lower end of the grounding line 173 constitutes a grounding end 1731, through which the grounding line 173 can realize the grounding function.

[0056] Specifically, the feeding line 172 comprises two feeding sections 1721 arranged in parallel and connected with each other by a first connecting line. One of the two feeding sections 1721 is connected with an external feeding element to receive the external feeding current.

[0057] The grounding line 173 comprises two grounding sections 1732 arranged in parallel and connected with each other by a second connecting line 1733. The two feeding sections 1721 and the two grounding sections 1732 form a parallel coupling relationship, specifically, each feeding section 1721 is separately coupled with one grounding section 1732 in parallel.

[0058] One end of the grounding section 1732 constitutes part of the grounding end 1731 of the grounding line 173, and the other end of the grounding section 1732 forms an electrical connection end 1734. It can be understood that, since the grounding line 173 comprises two grounding sections 1732, two electrical connection ends 1734 are correspondingly formed. The two electrical connection ends 1734 are respectively electrically connected with the feeding portions 111 of the two radiation arms 110 of the same polarization, so that the balun 170 feeds the two radiation arms 110 of the same polarization. In this embodiment, the electrical connection end 1734 and the corresponding feeding portion 111 can be directly electrically connected, or can be connected by coupling feeding.

[0059] In the dielectric plate 171 of the balun 170, two plug-in portions 1711 are formed at the upper end of the dielectric plate 171. The two plug-in portions 1711 are protruding relative to the upper end of the dielectric plate 171, and the positions of the two plug-in portions 1711 correspond to the two electrical connection ends 1734 of the grounding line 173. Specifically, the two electrical connection ends 1734 respectively extend to the two plug-in portions 1711, so as to be electrically connected with the feeding portions 111 of the radiation arms 110 in the subsequent process.

[0060] Meanwhile, a plurality of first plug-in holes are arranged on the medium substrate 160, and the layout and size of the first plug-in holes are matched with the plug-in part 1711. In addition, a second plug-in hole is arranged on the feeding part 111 of the radiation arm 110, and the position and size of the second plug-in hole are also matched with the plug-in part 1711.

[0061] In the actual assembly process, the plug-in part 1711 is inserted into the corresponding first plug-in hole and second plug-in hole at the same time. Through this plug-in mode, the power connection end 1734 arranged on the plug-in part 1711 can realize stable and reliable electrical connection with the corresponding feeding part 111.

[0062] In the embodiment, the grounding section 1732 is provided with a notch 1735. By setting the shape, size and other parameters of the notch 1735, the inductance between the grounding section 1732 and the corresponding feeding section 1721 can be effectively controlled, and the electrical performance of the radiation unit 10 is optimized.

[0063] The principle is that the inductance between the grounding section 1732 and the feeding section 1721 is closely related to the coupling area between them. When the area of the notch 1735 increases, the effective coupling area between the grounding section 1732 and the feeding section 1721 decreases. According to the principle of electromagnetism, the decrease of the coupling area will lead to the increase of the inductance between them. Conversely, when the area of the notch 1735 decreases, the effective coupling area between the grounding section 1732 and the feeding section 1721 increases, so that the inductance between them decreases. By adjusting the area of the notch 1735, the inductance can be accurately controlled to meet the electrical performance requirements of the radiation unit 10 in different working scenarios.

[0064] In addition, in the embodiment, there is a height difference between the notch 1735 and the radiation unit 10, and the height difference and the notch 1735 together form an LC resonance circuit (referred to as a second LC resonance circuit). The second LC resonance circuit can work at a predetermined resonance frequency, so that the radiation unit 10 can adapt to different frequency bands. Through the resonance effect of the second LC resonance circuit, the impedance matching of the radiation unit 10 can be optimized, the signal reflection and loss can be reduced, and the communication performance of the radiation unit 10 can be improved, and the quality and stability of signal transmission can be improved.

[0065] In a further embodiment, the second LC resonant circuit cooperates with the first LC resonant circuit formed by the coupling gap 140 and the separation slot 151 described above. Through the cooperation of the two, the common mode resonance frequency point can be adjusted out of the intermediate frequency operating frequency band. This frequency adjustment mechanism can effectively suppress the intermediate frequency band common mode scattering, reduce the influence of the intermediate frequency band common mode signal on the normal operation of the radiating unit 10, and further improve the performance stability and reliability of the radiating unit 10 in the intermediate frequency band, and ensure its normal and efficient operation in the relevant communication scenarios.

[0066] Specifically, moving the common mode resonance frequency point out of the intermediate frequency operating frequency band has significant positive effects. During the intermediate frequency band communication process, the common mode scattering signal often interferes with normal signal transmission, causing signal distortion, increased error rate, and other problems, which seriously affect the performance and communication quality of the radiating unit 10. Through the cooperation of the two LC resonant circuits in this embodiment, the intermediate frequency band common mode scattering is effectively suppressed. This suppression not only reduces the interference of the common mode signal on the normal signal, but also reduces the energy loss of the signal during transmission, thereby significantly improving the performance stability and reliability of the radiating unit 10 in the intermediate frequency band.

[0067] In another embodiment, the notch 1735 can also be provided on the feeding section 1721 of the feeding line 172.

[0068] In one embodiment, in combination with Figure 1 , Figure 5 and Figure 6 , the two baluns 170 are assembled in a plug-in manner, thereby forming a cross-shaped structure. Under the premise of ensuring that the two baluns 170 do not adversely affect the radiation performance of the radiating unit 10 in the intermediate frequency and high frequency bands, the size of the radiating unit 10 is effectively reduced, the weight is significantly reduced, and the cost is reduced. This cross-shaped structure not only optimizes the spatial layout of the radiating unit 10, but also improves its overall performance and economy, providing a more convenient and efficient solution for practical applications.

[0069] Specifically, in order to facilitate the smooth insertion of the dielectric plates 171 of the two baluns 170, the second connecting lines 1733 of the ground lines 173 of the two baluns 170 are arranged differently, wherein the second connecting line 1733 of the ground line 173 of one balun 170 is arranged at the upper end region of the opposite dielectric plate 171, and the second connecting line 1733 of the ground line 173 of the other balun 170 is arranged at the lower end region of the opposite dielectric plate 171. Through this staggered arrangement, the mutual interference of the two second connecting lines 1733 during insertion is effectively avoided, ensuring that the dielectric plates 171 of the two baluns 170 can be smoothly and stably inserted into each other, thereby guaranteeing the reliability and stability of the entire radiating unit 10 structure.

[0070] The application also provides an antenna 200, which comprises Figure 7 The antenna 200 mainly comprises a reflector 210 and a radiating array arranged on the reflector 210 to realize the radiation function of the antenna 200.

[0071] The radiating array specifically comprises a medium-frequency radiating column 220 and a high-frequency radiating column 230. The medium-frequency radiating column 220 is arranged by a plurality of medium-frequency radiating units 221 along a first axis, and the medium-frequency radiating units 221 maintain a certain spacing and relative position relationship to realize effective radiation of medium-frequency signals. The high-frequency radiating column 230 is arranged by a plurality of high-frequency radiating units 10 along a second axis. In this embodiment, the high-frequency radiating unit 10 is the radiating unit 10 described above, which has excellent electrical performance and structural advantages, and is helpful to improve the radiation effect of high-frequency signals.

[0072] In one embodiment, the medium-frequency radiating column 220 and the high-frequency radiating column 230 are arranged in parallel. For example, two high-frequency radiating columns 230 can be arranged on both sides of the medium-frequency radiating column 220, which is beneficial to optimize the radiation pattern of the antenna 200 and improve the gain and coverage range of the antenna 200.

[0073] In another embodiment, the first axis of the medium-frequency radiating column 220 coincides with the second axis of the high-frequency radiating column 230, that is, the medium-frequency radiating column 220 and the high-frequency radiating column 230 are arranged in a common aperture. The common aperture arrangement can make full use of the space resources of the antenna 200, reduce the overall size of the antenna 200, and realize the cooperative radiation of medium-frequency and high-frequency signals, improve the integration and performance of the antenna 200. This structure has important application value in multi-band communication systems and can meet the transmission requirements of different frequency band signals.

[0074] In one embodiment, the antenna 200 is a venue antenna 200 suitable for use in a venue environment. Given the common mode scattering suppression of the high frequency radiating element 10, the venue antenna 200 has significant advantages in performance.

[0075] Specifically, the high frequency radiating element 10 can effectively reduce the coupling between high and high frequency arrays. In traditional antenna structures, the coupling between high and high frequency arrays often leads to signal interference, energy loss, and other problems, affecting the overall performance of the antenna. The venue antenna 200 of the present application effectively solves this problem through the common mode scattering suppression of the high frequency radiating element 10, reducing the mutual interference between different frequency arrays and ensuring the independent and stable transmission of signals of each frequency band.

[0076] Meanwhile, the common mode scattering suppression of the high frequency radiating element 10 also helps to solve the common mode resonance problem. Common mode resonance can cause unstable performance of the antenna 200 and affect signal quality. Through the special design of the high frequency radiating element 10, the occurrence of common mode resonance can be effectively suppressed, and the intermodulation level of the antenna 200 can be improved. The improvement of the intermodulation level means that the antenna 200 can better maintain the purity and stability of the signal when processing multi-band signals, reducing signal distortion and interference.

[0077] In addition, thanks to the structural advantages of the high frequency radiating element 10, the venue antenna 200 has realized optimization in size and weight. Compared with traditional antennas 200, it is smaller in size, lighter in weight, easier to install and deploy, and especially suitable for venues and other scenarios with strict requirements for space and load bearing. Moreover, this structural optimization also brings cost reduction, reduces material usage and manufacturing process complexity, and improves the cost performance of the antenna 200.

[0078] In practical applications, the venue antenna 200 can achieve high-capacity and stable signal coverage in the venue. Through reasonable layout of the radiating array and optimization of the antenna 200 parameters, uniform distribution of signals in the venue can be ensured, meeting the demand of a large number of users for simultaneous communication. This not only improves communication efficiency, but also guarantees communication quality, providing users with a smoother and more reliable communication experience.

[0079] The present application also provides a base station comprising the antenna 200 described above.

[0080] In summary, the radiating element of the present application has the effect of common mode scattering suppression, which can effectively reduce the coupling between high and high frequency arrays, solve the common mode resonance problem, improve the intermodulation level of the antenna, reduce the size and weight of the antenna, and reduce the cost of the antenna.

[0081] The above description merely illustrates the preferred embodiment of this application and a sketch of the principles of the application. It will be apparent to those skilled in the art that the scope of the present application is not limited to the specific technical features described above, but also covers other technical solutions formed by any combination of the above technical features or equivalent features thereof without departing from the inventive concept. For example, the above technical features can be replaced with technical features of the same function in the present application (but not limited to) to form technical solutions.

[0082] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are merely illustrative of the example forms of implementing the claims.

Claims

1. A radiation unit, characterized in that: The invention comprises two pairs of radiating arms arranged with orthogonal polarizations, wherein the radiating arms include a radiator and a feeder, wherein a hollow slot is provided in the radiator, and the feeder is arranged in the hollow slot, and a coupling gap is formed between the outer periphery of the feeder and the inner periphery of the hollow slot, and the feeder is used to receive external current.

2. The radiation unit according to claim 1, wherein The coupling gaps are arranged with equal widths.

3. The radiation unit according to claim 2, wherein: The shape of the inner contour of the hollow groove is the same as the shape of the outer contour of the feeder.

4. The radiation unit according to claim 1, wherein The outer contour of the radiator is substantially the same as the outer contour of the feeder.

5. The radiation unit according to any one of claims 1 to 4, characterized in that: The outer contour of the radiator is any one of a circle, an ellipse and a polygon.

6. The radiation unit according to any one of claims 1 to 4, characterized in that: A corrugated structure is provided on the outer periphery of the feeder, and the corrugated structure is extended along the outer periphery of the feeder.

7. The radiation unit according to claim 1, wherein: The two pairs of radiating arms are alternately arranged in a counterclockwise direction, and the radiators of the two pairs of radiators are connected to form an integrated structure.

8. The radiation unit according to claim 7, wherein: A separation groove is provided at the junction of two adjacent radiators, and the separation groove is recessed from the outer periphery of the radiator toward the polarization center of the radiating unit.

9. The radiation unit according to claim 1, wherein: The radiation unit also includes a dielectric substrate and a pair of baluns. The two pairs of radiation arms are arranged on the dielectric substrate. The pair of baluns feed the two pairs of radiation arms respectively. The balun includes a dielectric plate and a feeding line and a grounding line respectively arranged on the front and back sides of the dielectric plate. One end of the grounding line forms a grounding end, and the other end feeds the corresponding pair of radiation arms. The feeding line is used to receive external current.

10. The radiation unit according to claim 9, characterized in that The feeding line includes a pair of parallel feeding segments, and the grounding line includes a pair of parallel grounding segments. The pair of feeding segments and the pair of grounding segments are coupled in parallel, and one end of the grounding segment is electrically connected to the corresponding radiating arm.

11. The radiation unit according to claim 10, wherein: A notch is formed in the feeding section or the grounding section, and the area of ​​the notch is adjusted to control the coupling amount between the coupled feeding section and the grounding section.

12. An antenna, characterized in that: It includes a reflective plate and a radiation array arranged on the reflective plate, the radiation array includes a medium frequency radiation column and a high frequency radiation column, the medium frequency radiation column and the high frequency radiation column are coaxial or parallel, the medium frequency radiation column includes a plurality of medium frequency radiation units, the high frequency radiation column includes a plurality of high frequency radiation units, and the high frequency radiation unit is a radiation unit according to any one of claims 1 to 11.

13. A base station, characterized in that: Comprising the antenna as claimed in claim 12.

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