Radiating element, antenna and base station

Abstract

The application provides a radiation unit, an antenna and a base station, the radiation unit comprises two pairs of radiation arms arranged in polarization quadrature, the radiation arm comprises a radiator and a feed body, a hollow slot is arranged 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. The radiation unit has the effect of common mode scattering suppression, can effectively reduce the coupling between high and medium frequency arrays, solve the common mode resonance problem, improve the intermodulation level of the antenna and the like, reduce the size and weight of the antenna, and reduce the cost of the antenna.

Description

Technical Field

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

[0002] With the rapid development of mobile communication technology, the performance requirements of communication equipment are constantly increasing. As an indispensable and crucial component of communication systems, the antenna's overall performance directly affects the network effectiveness and communication quality of the system. In today's society, people's spiritual and cultural needs are growing, and large-scale sporting events, cultural performances, exhibitions, and conferences are frequently held in venues. These events attract large numbers of spectators, staff, and media personnel, resulting in dense crowds within the venues and placing extremely high demands on communication quality.

[0003] Existing stadium antennas have several shortcomings. First, uneven signal coverage is a significant problem, especially in areas such as high stands and stadium edges where signal strength is weak, leading to poor communication. Second, existing stadium antennas have limited capacity, making them prone to communication interruptions in densely populated areas, severely impacting user experience. Furthermore, traditional vibrator designs result in low antenna gain, making it difficult to meet the diverse communication needs of complex stadium environments. Additionally, with the increasing multi-frequency development of stadium antennas, their size and weight are constantly increasing. To reduce interference with adjacent arrays, the distance between arrays is usually increased, further making stadium antennas larger and heavier.

[0004] Therefore, existing stadium antennas suffer from numerous problems in terms of signal coverage, capacity, gain, size, weight, and cost. These issues limit the performance improvement of stadium communication systems and make it difficult to meet the ever-increasing communication demands. Thus, a novel stadium antenna design is urgently needed to overcome the shortcomings of existing technologies and achieve better communication results and higher performance. Summary of the Invention

[0005] The primary objective of this invention is to solve at least one of the above-mentioned problems by providing a radiating element, antenna, and base station.

[0006] To achieve the various objectives of this invention, the following technical solution is adopted:

[0007] To meet one of the objectives of this invention, a radiating unit is provided, comprising two pairs of radiating arms arranged orthogonally with polarization. Each radiating arm includes a radiator and a feeder. A slot is formed in the radiator, and the feeder is disposed in the slot. A coupling gap is formed between the outer periphery of the feeder and the inner periphery of the slot. The feeder is used to receive external current.

[0008] In one embodiment, the coupling gap is set to a constant width.

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

[0010] In one embodiment, the shape of the outer contour of the radiator is approximately the same as the outer contour of the feeder.

[0011] In one embodiment, the outer contour of the radiator is any one of a circle, an ellipse, and a polygon.

[0012] In one embodiment, a waveform structure is provided on the outer periphery of the power supply, and the waveform structure extends along the outer periphery of the power supply.

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

[0014] In one embodiment, a partition groove is provided at the junction of two adjacent radiators, and the partition groove is recessed from the outer periphery of the radiator toward the polarization center of the radiating unit.

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

[0016] In one embodiment, the feed line includes a pair of parallel feed segments, and the grounding line includes a pair of parallel grounding segments, the pair of feed segments and the pair of grounding segments being coupled in parallel, with one end of each grounding segment electrically connected to a corresponding radiating arm.

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

[0018] To achieve one of the objectives of this invention, an antenna is provided, comprising a reflector and a radiating array disposed on the reflector, the radiating array comprising an intermediate frequency (IF) radiating column and a high frequency radiating column, the IF radiating column and the high frequency radiating column being arranged coaxially or parallel to each other, the IF radiating column comprising a plurality of IF radiating elements, the high frequency radiating column comprising a plurality of high frequency radiating elements, the high frequency radiating elements being the radiating elements described in any of the preceding objectives.

[0019] To suit one of the purposes of this invention, a base station is provided, comprising an antenna as described in the preceding purpose.

[0020] Compared with existing technologies, the present invention has many advantages, including but not limited to:

[0021] The radiating element of this invention features a hollowed-out slot within its radiator, into which a feed element is positioned. A coupling gap is formed between the outer periphery of the feed element and the inner periphery of the hollowed-out slot, cleverly altering the current distribution and transmission path. When external current flows through the feed element, the presence of the coupling gap makes the current coupling between the radiator and the feed element more orderly and controllable, reducing unnecessary scattering and reflection, thereby effectively reducing coupling between high and mid-frequency arrays. This reduction in coupling helps reduce mutual interference between antennas of different frequency bands, ensuring that antennas of each frequency band can operate independently and stably, solving the common-mode resonance problem, and improving the overall performance of the antenna system.

[0022] A coupling gap is formed between the feed element and the radiator, and the feed element and radiator are coupled together, making the antenna's processing of signals of different frequencies more linear during operation. This reduces the generation of nonlinear distortion, thereby reducing the intensity of intermodulation products, improving the antenna's ability to receive and transmit signals cleanly, and ensuring the quality and reliability of communication signals.

[0023] The combination of radiator and feed element makes the antenna more efficient in terms of space utilization. At the same time, this reduces unnecessary material usage and lowers the antenna's weight. This is significant for applications with strict space and weight requirements, as it not only reduces installation and transportation costs but also improves the flexibility and adaptability of the equipment.

[0024] In densely populated venues such as large stadiums with high communication demands, antennas need to provide high-capacity, stable signal coverage. The superior performance of this radiating element allows the antenna to better meet this requirement. Due to its advantages such as common-mode scattering suppression, reduced inter-array coupling, and improved intermodulation levels, the antenna reduces signal interference and distortion during operation, ensuring stable signal transmission. Simultaneously, its reduced size and weight allow for more flexible placement 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. Attached Figure Description

[0025] 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:

[0026] Figure 1This is a schematic diagram of the structure of a radiation unit according to a typical embodiment of the present invention.

[0027] Figure 2 This is a top view schematic diagram of the radiation unit in a typical embodiment of the present invention.

[0028] Figure 3 This is a top view schematic diagram of a radiation unit according to another embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram of the balun of the radiating unit in a typical embodiment of the present invention from a frontal view.

[0030] Figure 5 This is a schematic diagram of the reverse view of one of the baluns of a radiation unit in a typical embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the reverse view of another balun of the radiating unit in a typical embodiment of the present invention.

[0032] Figure 7 This is a schematic diagram of the antenna structure according to a typical embodiment of the present invention. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] This invention provides a radiating element that has the function of common-mode scattering suppression. It can effectively reduce the coupling between high and mid 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. In addition, it can also achieve high-capacity and stable signal coverage in the venue, and improve communication efficiency and quality.

[0037] In a typical embodiment of the present invention, combined with Figure 1 and Figure 2 or Figure 3 The radiation unit 10 includes two pairs of radiation arms 110, which are arranged in a polarization orthogonal manner.

[0038] The radiating arm 110 includes a feed element 120 and a radiator 130. The radiator 130 has a hollowed-out area, referred to as a hollowed-out groove 131, and the feed element 120 is disposed within the hollowed-out groove 131. A gap is formed between the outer periphery of the feed element 120 and the inner periphery of the hollowed-out groove 131, referred to as a coupling gap 140. There is no direct physical contact between the feed element 120 and the radiator 130; they are electrically coupled through the coupling gap 140.

[0039] The feed element 120 receives external current and couples the received external current to the radiator 130 via the coupling gap 140. The radiator 130 radiates signals under the excitation of the external current, thus realizing the external signal radiation function of the radiating arm 110. In this embodiment, it is recommended that the width of the coupling gap 140 be set to 0.06 times the wavelength of the operating frequency of the radiating element 10, but this value should not be considered a limitation of the invention.

[0040] Furthermore, in this embodiment, the coupling gaps 140 are evenly spaced along their extension path. It is understood that the outer contour shape of the feed body 120 is the same as the inner contour shape of the slot 131, and the outer contour area of ​​the feed body 120 is smaller than the inner contour area of ​​the slot 131. Thus, when the feed body 120 is disposed within the slot 131, the outer periphery of the feed body 120 and the inner periphery of the slot 131 can be evenly spaced. Because the coupling gaps 140 are evenly spaced, uniform coupling and feeding can be achieved between the feed body 120 and the radiator 130, effectively avoiding uneven current distribution and thus ensuring the radiation performance of the radiation unit 10.

[0041] In this embodiment, both the feed element 120 and the radiator 130 extend along the polarization axis corresponding to their respective polarizations. Specifically, the radiator 130 is located in the outer region of the feed element 120 relative to the polarization axis.

[0042] In one embodiment, the shape of the power supply 120 may be any one of a circle, an ellipse, and a polygon, but this range of shapes should not be considered as a limitation of this embodiment. Further, it is recommended that the power supply 120 be a polygon with a number of sides greater than or equal to 3; however, this recommendation should not be construed as a limitation of the invention.

[0043] To facilitate the explanation of the present invention, this embodiment uses a rectangular shape for the feed body 120 as an example, but this example should not be construed as a limitation of the present invention. Accordingly, the shape of the hollowed-out groove 131 is consistent with the shape of the feed body 120. It is understood that when the feed body 120 is rectangular, the hollowed-out groove 131 is also rectangular.

[0044] In one embodiment, combined Figure 2 The feed body 120 has a waveform structure on its outer periphery, referred to as the first waveform structure 121, which extends along the outer periphery of the feed body 120. To ensure that the coupling gap 140 between the outer periphery of the feed body 120 and the inner periphery of the slot 131 remains equidistant, the inner periphery of the slot 131 also has a waveform structure, referred to as the second waveform structure 132. Since both the first waveform structure 121 on the outer periphery of the feed body 120 and the second waveform structure 132 on the inner periphery of the slot 131 are repeatedly bent structures, this configuration increases the length of the coupling gap 140, thereby improving the coupling efficiency between the feed body 120 and the radiator 130, and ultimately enhancing the electrical performance of the radiating unit 10.

[0045] In this embodiment, it is recommended that both the first waveform structure 121 and the second waveform structure 132 adopt any one of a square wave structure, a sine wave structure, or a sawtooth wave structure. For ease of explanation, this embodiment uses the example of the first waveform structure 121 on the outer periphery of the feed body 120 and the second waveform structure 132 on the inner periphery of the hollow groove 131 both being square wave structures; however, this example should not be construed as a limitation of the present invention.

[0046] In one embodiment, the outer contour shape of the radiator 130 can be any one of a circle, an ellipse, and a polygon, but this range of shapes should not be considered a limitation of this embodiment. Further, it is recommended that the radiator 130 adopt a polygonal shape, and the number of sides of the polygon should be greater than or equal to 3; however, this recommendation should not be construed as a limitation of the present invention. Meanwhile, in this embodiment, it is recommended that the outer contour shape of the radiator 130 be the same as or substantially the same as the outer contour shape of the feeder 120, but this recommendation should not be construed as a limitation of the present invention.

[0047] To facilitate the explanation of the present invention, in this embodiment, the outer contour shape of the radiator 130 is rectangular and the outer contour shape of the feeder 120 is also rectangular, but this example should not be construed as a limitation of the present invention.

[0048] In a typical embodiment of the present invention, combined with Figure 2 or Figure 3 The two pairs of radiating arms 110 comprise four radiating arms 110 arranged sequentially in a counterclockwise direction. Specifically, in the counterclockwise direction, the radiating arms 110 belonging to one polarization are adjacent to and connected to the two radiating arms 110 belonging to the other polarization. In particular, in the counterclockwise direction, for two adjacent radiating arms 110, the radiator 130 of one radiating arm 110 is interconnected with the radiator 130 of the other radiating arm 110. The radiators 130 of each of the four radiating arms 110 are interconnected, thus forming a single integrated structure, creating a radiating sheet.

[0049] In this embodiment, a junction region 150 is formed at the contact point of two adjacent radiators 130. A partition groove 151 is formed on the junction region 150, and the partition groove 151 is recessed from the outer periphery of the junction region 150 towards the polarization center, and the partition groove 151 is a blind groove. It is understood that the partition groove 151 does not penetrate the junction region 150, thus ensuring that the two adjacent radiators 130 remain in contact at the junction region 150. In this embodiment, it is recommended that the width of the partition groove 151 be set to 0.15 times the wavelength of the operating frequency of the radiating element 10, but this value should not be considered a limitation of the present invention.

[0050] Given that the radiating sheet is composed of four interconnected radiators 130, and a partition groove 151 is provided between two adjacent radiating arms 110, it can be understood that the radiating sheet has a total of four partition grooves 151. By providing these four partition grooves 151, the electrical transmission path of the current on the radiating sheet can be effectively extended, thereby improving the electrical performance of the radiating sheet and optimizing the radiation performance of the radiating unit 10.

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

[0052] In a typical embodiment of the present invention, the radiating arm 110 further includes a feed section 111. The feed section 111 is disposed near the polarization center, and is electrically connected to the feed body 120. The main function of the feed section 111 is to receive external current, which is sequentially transmitted from the feed section 111 to the feed body 120 and the radiator 130. The feed sections 111 of each of the four radiating arms 110 are all disposed near the polarization center, which facilitates the feeding operation of each of the four feed sections 111 for its corresponding radiating arm 110.

[0053] In this embodiment, the radiator 130 has a slot 131 with an opening corresponding to the position of the power supply part 111. Through this opening, the power supply part 120 disposed in the slot 131 can be connected to the power supply part 111, thereby facilitating the power supply part 111 to supply power to the power supply part 120.

[0054] Combination Figure 1 The radiating unit 10 further includes a dielectric substrate 160 and a pair of baluns 170. The two pairs of radiating arms 110 are disposed on the front or back side of the dielectric substrate 160. The pair of baluns 170 respectively feed the two pairs of radiating arms 110. Specifically, one balun 170 feeds the two radiating arms 110 of one corresponding polarization, and the other balun 170 feeds the two radiating arms 110 of the other corresponding polarization, that is, the two baluns 170 are respectively disposed for the two polarizations.

[0055] Combination Figure 4 and Figure 5 or Figure 6The balun 170 includes a dielectric substrate 171, a feed line 172, and a grounding wire 173. The feed line 172 is disposed on the front side of the dielectric substrate 171, and the grounding wire 173 is disposed on the back side of the dielectric substrate 171. The feed line 172 and the grounding wire 173 are connected by coupling. The feed line 172 is used to connect to an external power supply component, thereby facilitating power supply from the external power supply component to the feed line 172. The grounding wire 173 extends along the axial direction of the dielectric substrate 171, and its lower end forms a grounding terminal 1731, through which the grounding wire 173 can perform grounding functions.

[0056] Specifically, the feeder line 172 includes two feeder sections 1721, which are arranged in parallel and interconnected by a first connecting line. One of the two feeder sections 1721 is connected to an external power supply unit to receive externally supplied current.

[0057] The grounding wire 173 includes two grounding sections 1732, which are arranged in parallel and interconnected by a second connecting line 1733. The two power supply sections 1721 are respectively parallel coupled to the two grounding sections 1732; specifically, each power supply section 1721 is individually coupled to one grounding section 1732.

[0058] One end of the grounding segment 1732 forms part of the grounding terminal 1731 of the grounding wire 173, and the other end of the grounding segment 1732 forms a power receiving terminal 1734. It can be understood that since the grounding wire 173 includes two grounding segments 1732, two power receiving terminals 1734 are correspondingly formed. The two power receiving terminals 1734 are electrically connected to the respective feed sections 111 of the two radial arms 110 of the same polarization, so that the balun 170 feeds the two radial arms 110 of the same polarization. In this embodiment, the power receiving terminal 1734 and the corresponding feed section 111 can be connected by direct electrical connection or by coupled power feeding.

[0059] In the dielectric substrate 171 of the balun 170, two insertion portions 1711 are formed at the upper end of the dielectric substrate 171. These two insertion portions 1711 protrude from the upper end of the dielectric substrate 171, and their positions correspond to the two electrical terminals 1734 of the grounding wire 173. Specifically, the two electrical terminals 1734 extend to the two insertion portions 1711 respectively, so as to subsequently achieve electrical connection with the feed section 111 of the radiating arm 110.

[0060] Meanwhile, a plurality of first insertion holes are provided on the dielectric substrate 160, and the layout and size of these first insertion holes are adapted to the insertion portion 1711. In addition, a second insertion hole is also provided on the power supply portion 111 of the radiating arm 110, and the position and size of the second insertion hole are also matched with the insertion portion 1711.

[0061] During actual assembly, the plug-in part 1711 is simultaneously inserted into the corresponding first plug-in hole and the second plug-in hole. Through this plug-in method, the power terminal 1734 provided on the plug-in part 1711 can achieve a stable and reliable electrical connection with the corresponding power supply part 111.

[0062] In this embodiment, a notch 1735 is provided on the grounding section 1732. By setting parameters such as the shape and size of the notch 1735, the inductance between the grounding section 1732 and the corresponding feed section 1721 can be effectively controlled, thereby optimizing the electrical performance of the radiating unit 10.

[0063] The principle is that the inductance between the grounding section 1732 and the feed 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 feed section 1721 decreases accordingly. According to electromagnetic principles, a decrease in coupling area leads to an increase in the inductance between them. Conversely, when the area of ​​the notch 1735 decreases, the effective coupling area between the grounding section 1732 and the feed section 1721 increases, thereby reducing the inductance between them. By adjusting the area of ​​the notch 1735, precise control of the inductance can be achieved to meet the electrical performance requirements of the radiating unit 10 under different operating scenarios.

[0064] Furthermore, in this embodiment, a height difference exists between the notch 1735 and the radiating element 10. This height difference, together with the notch 1735, constitutes an LC resonant circuit (referred to as the second LC resonant circuit). The second LC resonant circuit can operate at a predetermined resonant frequency, enabling the radiating element 10 to adapt to different frequency bands. Through the resonant effect of this second LC resonant circuit, the impedance matching of the radiating element 10 can be optimized, signal reflection and loss can be reduced, thereby improving the communication performance of the radiating element 10 and enhancing the quality and stability of signal transmission.

[0065] In a further embodiment, the second LC resonant circuit and the first LC resonant circuit formed by the coupling gap 140 and the partition slot 151 described above cooperate with each other. Through their synergistic effect, the common-mode resonant frequency can be adjusted to outside the intermediate frequency operating band. This frequency adjustment mechanism can effectively suppress common-mode scattering in the intermediate frequency band, reduce the impact of the intermediate-frequency common-mode signal on the normal operation of the radiating unit 10, and thus improve the performance stability and reliability of the radiating unit 10 in the intermediate frequency band, ensuring its normal and efficient operation in relevant communication scenarios.

[0066] Specifically, shifting the common-mode resonant frequency out of the intermediate frequency (IF) band has significant positive effects. During IF band communication, common-mode scattering signals often interfere with normal signal transmission, leading to signal distortion, increased bit error rate, and other problems, severely impacting the performance and communication quality of the radiating element 10. However, through the synergistic effect of the two LC resonant circuits in this embodiment, common-mode scattering in the IF band is effectively suppressed. This suppression not only reduces the interference of common-mode signals with normal signals but also reduces energy loss during signal transmission, thereby significantly improving the performance stability and reliability of the radiating element 10 in the IF band.

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

[0068] In one embodiment, combined Figure 1 , Figure 5 and Figure 6 The dielectric substrates 171 of the two baluns 170 are assembled by interlocking to form a cross-shaped structure. While ensuring that the two baluns 170 do not adversely affect the radiation performance of the radiating unit 10 in the mid-frequency and high-frequency bands, this achieves an effective reduction in the size, weight, and cost of the radiating unit 10. 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, to facilitate the smooth interlocking of the dielectric substrates 171 of the two baluns 170, the present invention employs different configurations for the second connecting lines 1733 of the grounding wires 173 of the two baluns 170. The second connecting line 1733 of one balun 170 is located in the upper region of the reverse side of its corresponding dielectric substrate 171, while the second connecting line 1733 of the other balun 170 is located in the lower region of the reverse side of its corresponding dielectric substrate 171. This staggered arrangement effectively avoids interference between the two second connecting lines 1733 during interlocking, ensuring smooth and stable interlocking of the dielectric substrates 171 of the two baluns 170, thereby guaranteeing the reliability and stability of the entire radiating unit 10 structure.

[0070] The present invention also provides an antenna 200, combined with Figure 7 The antenna 200 is mainly composed of a reflector 210 and a radiating array. The radiating array is disposed on the reflector 210 to realize the radiating function of the antenna 200.

[0071] The radiation array specifically includes an intermediate frequency (IF) radiation column 220 and a high-frequency radiation column 230. The IF radiation column 220 is composed of multiple IF radiation units 221 arranged sequentially along a first axis, with each IF radiation unit 221 maintaining a certain spacing and relative positional relationship to achieve effective IF signal radiation. The high-frequency radiation column 230 is composed of multiple high-frequency radiation units 10 arranged sequentially along a second axis. In this embodiment, the high-frequency radiation unit 10 is the aforementioned radiation unit 10, which has excellent electrical performance and structural advantages, contributing to improved high-frequency signal radiation.

[0072] In one embodiment, the intermediate frequency radiation column 220 and the high frequency radiation column 230 are arranged in parallel. For example, the two high frequency radiation columns 230 can be respectively arranged on both sides of the intermediate frequency radiation column 220. This layout helps to optimize the radiation pattern of the antenna 200 and improve the gain and coverage of the antenna 200.

[0073] In another embodiment, the first axis of the intermediate frequency (IF) radiating column 220 coincides with the second axis of the high-frequency (HF) radiating column 230, meaning the IF radiating column 220 and the HF radiating column 230 are configured with a common aperture. This common aperture configuration fully utilizes the space resources of the antenna 200, reduces its overall size, and simultaneously achieves coordinated radiation of IF and HF signals, improving the integration and performance of the antenna 200. This structure has significant application value in multi-band communication systems, meeting the transmission requirements of signals in different frequency bands.

[0074] In one embodiment, the antenna 200 is a venue antenna 200 suitable for a stadium environment. Given that the high-frequency radiating element 10 described above possesses common-mode scattering suppression capabilities, this venue antenna 200 exhibits significant performance advantages.

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

[0076] Meanwhile, the common-mode scattering suppression effect of the high-frequency radiating element 10 also helps to solve the common-mode resonance problem. Common-mode resonance can cause instability in the 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, improving the intermodulation level of the antenna 200. The improved intermodulation level means that the antenna 200 can better maintain the purity and stability of signals when processing multi-band signals, reducing signal distortion and interference.

[0077] Furthermore, thanks to the structural advantages of the high-frequency radiating element 10, the venue antenna 200 has achieved optimization in terms of size and weight. Compared to traditional antennas 200, it is smaller and lighter, making it easier to install and deploy, especially suitable for venues and other scenarios with strict requirements for space and load-bearing capacity. Moreover, this structural optimization also leads to cost reduction, reducing the complexity of material usage and manufacturing processes, and improving the cost-effectiveness of the antenna 200.

[0078] In practical applications, the venue antenna 200 can achieve high-capacity and stable signal coverage within the venue. By rationally arranging the radiating array and optimizing the antenna 200 parameters, it ensures uniform signal distribution within the venue, meeting the needs of a large number of users communicating simultaneously. This not only improves communication efficiency but also guarantees communication quality, providing users with a smoother and more reliable communication experience.

[0079] The present invention also provides a base station, the base station including the antenna 200 described above.

[0080] In summary, the radiating element of the present invention has the function of common-mode scattering suppression, which can effectively reduce the coupling between high and mid 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 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.

[0082] 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. A radiating unit, characterized in that, It includes two pairs of orthogonally polarized radiating arms. Each radiating arm includes a radiator and a feeder. The radiator has a slot, and the feeder is disposed in the slot. A coupling gap is formed between the outer periphery of the feeder and the inner periphery of the slot. The feeder is used to receive external current. The radiating unit also includes a dielectric substrate and a pair of baluns. The two pairs of radiating arms are disposed on the dielectric substrate. The pair of baluns respectively feed the two pairs of radiating arms. The balun includes a dielectric plate and a feed line and a ground line disposed on the front and back sides of the dielectric plate. One end of the ground line forms a ground terminal, and the other end feeds the corresponding pair of radiating arms. The feed line is used to receive external current. The feeder line includes a pair of parallel feeder segments, and the grounding line includes a pair of parallel grounding segments. The pair of feeder 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.

2. The radiating unit as described in claim 1, characterized in that, The coupling gap is set to a constant width.

3. The radiating unit as described in claim 2, characterized in that, The inner contour of the hollowed-out groove has the same shape as the outer contour of the feed body.

4. The radiating unit as described in claim 1, characterized in that, The outer contour of the radiator is roughly the same as the outer contour of the feeder.

5. The radiating element as described in any one of claims 1 to 4, characterized in that, The outer contour of the radiator can be any one of a circle, an ellipse, or a polygon.

6. The radiating element as described in any one of claims 1 to 4, characterized in that, The feed body has a waveform structure on its outer periphery, and the waveform structure extends along the outer periphery of the feed body.

7. The radiating unit as described in claim 1, characterized in that, The two pairs of radiating arms are arranged alternately in a counterclockwise direction, and the radiators of the two pairs of radiators are connected to form an integral structure.

8. The radiating unit as described in claim 7, characterized in that, A partition groove is provided at the junction of two adjacent radiators, and the partition groove is recessed from the outer periphery of the radiator toward the polarization center of the radiating unit.

9. The radiating unit as claimed in claim 1, characterized in that, A gap is formed in the feed section or the grounding section, and the area of ​​the gap is adjusted to control the coupling amount between the coupled feed section and the grounding section.

10. An antenna, characterized in that, The device includes a reflector and a radiation array disposed on the reflector. The radiation array includes a mid-frequency radiation column and a high-frequency radiation column, which are arranged coaxially or parallel to each other. The mid-frequency radiation column includes multiple mid-frequency radiation units, and the high-frequency radiation column includes multiple high-frequency radiation units. The high-frequency radiation units are the radiation units described in any one of claims 1 to 9.

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

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