Radiating element and antenna

Abstract

Provided in the present application are a radiating element (100) and an antenna (200). The radiating element (100) comprises two pairs of radiating arms (110) which are arranged orthogonally in terms of polarization, and two feed assemblies (120), wherein the two feed assemblies (120) correspondingly feed power to the two pairs of radiating arms (110), respectively; each feed assembly (120) comprises a feed post (130) and a feed core (140); each pair of radiating arms (110) comprises a first radiating arm (111) and a second radiating arm (112); and each feed post (130) feeds power to one first radiating arm (111), and each feed core (140) feeds power to one second radiating arm (112).

Description

Radiating unit and antenna

[0001] Cross-reference to Related Applications

[0002] The present disclosure claims priority to a Chinese patent application No. 202410480169.5, filed on April 19, 2024, entitled “Radiating unit and antenna”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application provides a radiating unit and an antenna configured with the radiating unit. BACKGROUND

[0004] With the rapid development of modern mobile communication technology, users have increasing demand for high-capacity and low-latency communication, and thus the fifth generation mobile communication network emerges as the times require. In the process of domestic 5G mobile communication network construction, multiple network systems need to be developed cooperatively, for example, 5G and 4G networks work simultaneously. However, different network systems need to use antennas of different frequency bands, which causes the number of antennas on each base station site to increase dramatically, greatly increasing the construction and maintenance costs of the antenna base station site, resulting in waste of antenna environmental resources, and too many antennas will also affect the cityscape. Therefore, the industry adopts the integration of multi-frequency and multi-system antennas to form a small size, common aperture and integrated multi-frequency antenna to meet the application requirements of mobile communication, in order to solve the current problems of insufficient antenna space, insufficient hanging height, poor coverage and performance, etc.

[0005] In the case of limited size, in order to integrate more frequency band antennas, it is necessary to reduce the distance between each frequency band antenna. When the distance is reduced, the mutual coupling interference between adjacent radiating units of different frequency bands will increase sharply, affecting the radiation performance of the radiating unit.

[0006] In order to realize the common aperture design of multi-frequency band antennas in a smaller cross-sectional size without sacrificing the performance indicators of each frequency band, the industry has tried to solve it. The balun of the radiating unit is also a main factor affecting the mutual coupling of adjacent two radiating units.

[0007] For example, the feed bar structure of the conventional radiation unit is composed of a feed wire and two ground bar conductors with a height of about 1 / 4 wavelength, the upper ends of the two ground bar conductors are respectively electrically connected to two radiation arms of the same polarization, the feed wire is electrically fed to the ground bar structure through coupling or direct connection, and the signal is radiated through the radiation arms. Further, the radiation unit is composed of two groups of feed bar structures and their corresponding two pairs of radiation arms, the dual-polarized bar includes four ground conductors with a height of about 1 / 4 wavelength and two dual-polarized feed wires, so that the metal volume of the bar is large, and there is no mutual coupling suppression structure, which easily causes the mutual coupling between adjacent radiation units to be strong in the miniaturized multi-frequency antenna environment, and inevitably affects the performance of the array antenna. SUMMARY

[0008] According to various embodiments of the present application, the present application provides a radiation unit and an antenna.

[0009] To achieve the various purposes of the present application, the present application adopts the following technical solutions:

[0010] To achieve one of the purposes of the present application, a radiation unit is provided, which includes two pairs of radiation arms arranged in polarization orthogonally and two feed assemblies, the two feed assemblies correspond to the two pairs of radiation arms for feeding respectively, the feed assembly includes a feed post and a feed core, each pair of radiation arms includes a first radiation arm and a second radiation arm, the feed post feeds the first radiation arm, and the feed core feeds the second radiation arm.

[0011] Further, the feed post is provided with a receiving groove, the receiving groove is arranged from the bottom to the top of the feed post, the feed core includes an extension segment, and the extension segment is arranged in the receiving groove.

[0012] Specifically, the top of the feed post is further provided with a first feeding part, and the first feeding part is directly connected or coupled to the first radiation arm.

[0013] Further, the feed core further includes a cross-over segment and a feed sheet, the cross-over segment is connected to the extension segment and the feed sheet respectively, the cross-over segment extends from the first radiation arm to the second radiation arm, and the feed sheet is directly connected or coupled to the second radiation arm.

[0014] In one embodiment, one or more filter branches are arranged on the extension segment.

[0015] In another embodiment, the feed core further includes a grounding segment, one end of the grounding segment is connected to the feed sheet, and the other end is grounded to the bottom of the feed post.

[0016] Specifically, the bottoms of the feed posts of the two feed assemblies are connected to form a common ground base.

[0017] Further, the two feeding columns constitute an integral structure and are integrally formed.

[0018] In one embodiment, the feeding column comprises at least two bending sections connected to constitute the feeding column in a bending structure.

[0019] In one embodiment, a slot is arranged in the bottom of the accommodating groove in parallel with the extension section.

[0020] In another embodiment, an open circuit suppression branch is further arranged on the feeding column and is hung on the slot.

[0021] In yet another embodiment, at least one open circuit suppression branch is further arranged on the feeding column and is arranged on the outer surface of the feeding column.

[0022] In still another embodiment, the open circuit suppression branch comprises a connecting section and an open circuit section, one end of the connecting section is connected to the outer surface of the feeding column, and the other end of the connecting section is connected to the open circuit section.

[0023] In a further embodiment, the open circuit suppression branch further comprises a closing section, two ends of the closing section are respectively connected to the feeding column and the open circuit section.

[0024] An antenna is provided for one of the purposes of the present application, comprising at least one first array operating at a first frequency band, the first array comprising first radiating elements, the first radiating elements being the radiating elements according to any one of the preceding purposes.

[0025] In one embodiment, the antenna further comprises at least one second array operating at a second frequency band, the first frequency band being lower than the second frequency band, the second array comprising second radiating elements, the second radiating elements being the radiating elements according to any one of the preceding purposes.

[0026] In one embodiment, the antenna further comprises at least one third array operating at a third frequency band, the second frequency band being lower than the third frequency band.

[0027] In one embodiment, the first array comprises a first radiating column, the second array comprises a second radiating column, and the third array comprises a third radiating column, the first radiating column being arranged in a shared aperture with at least one column of second radiating columns and / or at least one column of third radiating columns.

[0028] The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the application will be apparent from the description and drawings, and from the claims. BRIEF DESCRIPTION OF DRAWINGS

[0029] 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 of which:

[0030] Fig. 1 is a schematic diagram of a structure of a radiation unit according to an embodiment of the present application.

[0031] Fig. 2 is a schematic diagram of an assembly of two feed columns and two feed cores of the radiation unit according to an embodiment of the present application.

[0032] Fig. 3 is a schematic diagram of a front view of the two feed columns of the radiation unit according to an embodiment of the present application.

[0033] Fig. 4 is a schematic diagram of a back view of the two feed columns of the radiation unit according to an embodiment of the present application.

[0034] Fig. 5 is a schematic diagram of a structure of the two feed columns of the radiation unit according to a first embodiment of the present application.

[0035] Fig. 6 is a schematic diagram of a structure of the radiation unit according to the first embodiment of the present application.

[0036] Fig. 7 is a schematic diagram of a structure of the feed core of the radiation unit according to an embodiment of the present application.

[0037] Fig. 8 is a schematic diagram of a structure of the two feed columns of the radiation unit according to a second embodiment of the present application.

[0038] Fig. 9 is a schematic diagram of a structure of the two feed columns of the radiation unit according to a third embodiment of the present application.

[0039] Fig. 10 is a schematic diagram of a structure of the two feed columns of the radiation unit according to a fourth embodiment of the present application.

[0040] Fig. 11 is a schematic diagram of a structure of the two feed columns of the radiation unit according to a fifth embodiment of the present application.

[0041] Fig. 12 is a schematic diagram of a structure of the two feed columns of the radiation unit according to a sixth embodiment of the present application.

[0042] Fig. 13 is a schematic diagram of a structure of the two feed columns of the radiation unit according to a seventh embodiment of the present application.

[0043] Fig. 14 is a schematic diagram of a structure of the two feed columns of the radiation unit according to an eighth embodiment of the present application.

[0044] Fig. 15 is a schematic diagram of a structure of the feed core of the radiation unit according to an embodiment of the present application.

[0045] Fig. 16 is a schematic diagram of a structure of the feed core of the radiation unit according to another embodiment of the present application.

[0046] Fig. 17 is a schematic diagram of a structure of the radiation unit according to another embodiment of the present application.

[0047] FIG. 18 is a structural diagram of an antenna according to an embodiment of the present application.

[0048] FIG. 19 is a structural diagram of an antenna according to another embodiment of the present application. DETAILED DESCRIPTION

[0049] Embodiments of the present application are described in detail below with reference to the attached drawings, which are to be considered in the context of the disclosure and wherein like reference numerals refer to like elements throughout. The embodiments described below are examples of implementations and are not intended to be limiting.

[0050] It will be understood by those within the art that, in this application, terms such as "one," "another," "an," and "the" are not intended to refer exclusively to one individual item, but rather can refer to one or more individual items, unless otherwise indicated. It will be further understood that the use of the terms "includes," "including," "comprises" or "comprising," when referring to a list of elements, does not preclude the presence or addition of one or more other elements, unless otherwise indicated. It will be further understood that the use of the terms "connected" or "coupled" to describe an electrical connection between two elements implies that the elements are either directly connected or coupled together or that there are one or more intervening elements between the two elements. In addition, the use of the term "connected" or "coupled" can include the use of wireless connections or wireless couplings. The use of the term "and / or" includes all possible combinations of one or more of the associated listed items.

[0051] It will be understood by those within the art that, in this application, terms such as "one," "another," "an," and "the" are not intended to refer exclusively to one individual item, but rather can refer to one or more individual items, unless otherwise indicated. It will be further understood that the use of the terms "includes," "including," "comprises" or "comprising," when referring to a list of elements, does not preclude the presence or addition of one or more other elements, unless otherwise indicated. It will be further understood that the use of the terms "connected" or "coupled" to describe an electrical connection between two elements implies that the elements are either directly connected or coupled together or that there are one or more intervening elements between the two elements. In addition, the use of the term "connected" or "coupled" can include the use of wireless connections or wireless couplings. The use of the term "and / or" includes all possible combinations of one or more of the associated listed items.

[0052] The present application provides a radiation unit, which supports two pairs of radiation arms by two feeding assemblies, each of which includes a feeding post and a feeding core, so as to reduce the volume of the radiation unit, reduce the mutual coupling between adjacent radiation units, and facilitate the collocation of the radiation units.

[0053] In the typical embodiment of the present application, in combination with FIG. 1, the radiation unit 100 comprises two pairs of radiation arms 110 arranged in a polarization orthogonal manner and two feeding assemblies 120 corresponding to support the two pairs of radiation arms 110 respectively, and the feeding assembly 120 feeds the corresponding pair of radiation arms 110.

[0054] The feeding assembly 120 comprises a feeding column 130 and a feeding core 140, the two radiation arms 110 of the pair of radiation arms are a first radiation arm 111 and a second radiation arm 112, the feeding column 130 is connected with the first radiation arm 111, and the feeding column 130 feeds the first radiation arm 111, and the feeding core 140 feeds the second radiation arm 112. The feeding columns 130 of the two pairs of feeding assemblies 120 are respectively connected with one of the radiation arms 110 of different polarizations, so that the two pairs of feeding assemblies 120 support the two pairs of radiation arms 110, so that the radiation unit 100 maintains structural stability, and the radiation unit 100 is reduced in size.

[0055] In combination with FIG. 1, FIG. 2 and FIG. 3, the feeding column 130 is in a columnar structure, the top of the feeding column 130 is connected with the bottom of the first radiation arm 111, so as to support the first radiation arm 111. Specifically, the top of the feeding column 130 is provided with a first feeding part 131, and the first radiation arm 111 is provided with a second feeding part 1111, and the first feeding part 131 is in feeding connection with the second feeding part 1111. The first feeding part 131 and the second feeding part 1111 are electrically connected, and the electrical connection includes but is not limited to direct connection and coupling connection.

[0056] In the embodiment, the first feeding part 131 is in a sheet structure, and the second feeding part 1111 is also in a sheet structure. The first feeding part 131 and the second feeding part 1111 are coupled.

[0057] In one embodiment, in combination with FIG. 5 and FIG. 6, the first feeding part 131 is in a needle structure, and the first feeding part 131 is inserted into the second feeding part 1111 of the first radiation arm 111, so that the feeding column 130 directly feeds the first radiation arm 111. Preferably, the feeding column 130 can also support the first radiation arm 111 through the first feeding part 131, so that the feeding column 130 can further stably support the first radiation arm 111.

[0058] In combination with FIG. 1 and FIG. 7, the feeding core 140 is configured to feed the second radiating arm 112, and a top of the feeding core 140 is provided with a feeding sheet 143, the second radiating arm 112 is provided with a third feeding part 1121, and the feeding sheet 143 is in feeding connection with the third feeding part 1121. Specifically, the feeding sheet 143 is in direct electrical connection or coupling connection with the third feeding part 1121. In this embodiment, the feeding sheet 143 is in coupling connection with the third feeding part 1121. Preferably, the third feeding part 1121 is in a sheet structure.

[0059] The feeding core 140 comprises an extension section 141, a bridging section 142, and the feeding sheet 143, which are sequentially arranged from bottom to top along the axial direction of the feeding column 130. The bottom end of the extension section 141 is configured to be connected with an external feeding network, and external current is sequentially fed into the second radiating arm 112 through the extension section 141, the bridging section 142, and the feeding sheet 143, so that the second radiating arm 112 is excited to radiate signals.

[0060] In order to facilitate the arrangement of the feeding core 140 and reduce the arrangement space of the radiating unit 100, in combination with FIG. 1, FIG. 2, and FIG. 3, the feeding column 130 is provided with a receiving groove 132, which is configured to accommodate the extension section 141 of the feeding core 140, so as to reduce the arrangement space of the feeding core 140 and facilitate the miniaturization of the radiating unit 100.

[0061] Specifically, in combination with FIG. 3, the receiving groove 132 is recessed from the outer surface of the feeding column 130 to the inside of the feeding column 130, and extends from the bottom of the feeding column 130 to the top of the feeding column 130 along the axial direction of the feeding column 130. In one embodiment, the shape of the cross section of the receiving groove 132 includes but is not limited to a circular arc structure, a rectangular structure, a polygonal structure, an L-shaped structure, a V-shaped structure, and the like.

[0062] In combination with FIG. 1, the extension section 141 of the feeding core 140 is arranged in the receiving groove 132, and the extension section 141 extends from the bottom of the feeding column 130 to the top of the feeding column 130, so that the receiving groove 132 can accommodate the extension section 141, thereby reducing the arrangement space of the extension section 141, facilitating the miniaturization of the radiating unit 100, and reducing the mutual coupling between radiating units 100 of different frequency bands. In this embodiment, the extension section 141 is arranged in insulation with the receiving groove 132.

[0063] The top of the feeding column 130 is connected with the first radiating arm 111, the extension section 141 is arranged in the accommodating groove 132 of the feeding column 130, so that the top end of the extension section 141 is arranged opposite to the first radiating arm 111. In order to make the feeding core 140 feed the second radiating arm 112, the top of the extension section 141 is connected with the bridging section 142, the feeding core 140 is led to the second radiating arm 112 through the bridging section 142, so as to feed the second radiating arm 112 by the feeding core 140.

[0064] Specifically, in combination with FIG. 1 and FIG. 4, the bridging section 142 extends along the polarization axis of the polarization from the area where the first radiating arm 111 is located to the area where the second radiating arm 112 is located, that is to say, the bridging section 142 spans the first radiating arm 111 and the second radiating arm 112. The end of the bridging section 142 which is not connected with the extension section 141 is connected with the feeding sheet 143, the feeding sheet 143 is in feeding connection with the third feeding part 1121 of the second radiating arm 112, so as to feed the second radiating arm 112 by the feeding core 140.

[0065] In combination with FIG. 2, FIG. 5 and FIG. 6, the accommodating groove 132 is also provided with a lead opening 137 corresponding to the bridging section 142, the bridging section 142 can enter the accommodating groove 132 through the lead opening 137, so as to connect the bridging section 142 with the extension section 141, and reasonably arrange the feeding core 140.

[0066] In an embodiment, in combination with FIG. 8, FIG. 9 and FIG. 10, the feeding column 130 is arranged in a bent structure, so as to optimize the structural layout of the radiating unit 100, reduce mutual coupling and improve the radiating performance. Specifically, the feeding column 130 comprises at least two bent sections 138 which are connected in sequence, wherein, the adjacent two bent sections 138 are connected at an angle with each other, so that the feeding column 138 forms a bent structure. The bent section 138 is in a straight line section shape or a curved section shape, in this embodiment, the bent section 138 is in a straight line section shape. The angle between the adjacent two bent sections 138 is between 0 and 360°, when the feeding column 130 is provided with a plurality of bent sections 138, the plurality of bent sections 138 can be combined with each other to form a feeding column 130 with different bent structures, based on the above-mentioned various embodiments of the present application, those skilled in the art can flexibly use it, which will not be described here.

[0067] Further, the structure of the extension section 141 of the feeding core 140 is also the same as that of the feeding column 130, so as to arrange the extension section 141 in the accommodating groove 132 of the feeding column 130.

[0068] In one embodiment, in combination with FIG. 11, the groove bottom of the accommodating groove 132 is further provided with a groove 133 extending from the groove bottom of the accommodating groove 132 to the outer surface of the feeding column 130, and the groove 133 is provided with an opening on the outer surface of the feeding column 130, that is, the groove 133 is a through groove. By providing the groove 133 in the accommodating groove 132, the volume of the feeding column 130 is reduced.

[0069] In further embodiments, by adjusting the groove width and / or length of the groove 133 provided in the accommodating groove 132, the mutual coupling between adjacent radiation units of different frequency bands can be reduced to improve the radiation performance of the antenna. Those skilled in the art can obtain the groove width and / or length of the groove 133 through simulation or experiment after understanding the technical solutions of the present application to obtain suitable groove width and / or length data of the groove 133.

[0070] In one embodiment, in combination with FIG. 12, the feeding column 130 is further provided with an open-circuit suppression branch 134, which is hung on the groove 133. By providing the open-circuit suppression branch 134, the coupled signals of adjacent radiation units of different frequency bands are suppressed to reduce the mutual coupling between adjacent radiation units of different frequency bands, thereby improving the radiation performance of the multi-frequency antenna.

[0071] Specifically, the groove 133 is provided along the axial direction of the feeding column 130, and the groove 133 includes a top end, which is arranged close to the top of the feeding column 130. One end of the open-circuit suppression branch 134 is connected to the top end of the groove 133, and the open-circuit suppression branch 134 is arranged in the groove 133 and / or the accommodating groove 132. In this embodiment, the open-circuit suppression branch 134 is a long strip structure.

[0072] In further embodiments, by adjusting the length and / or width of the open-circuit suppression branch 134, the coupled signals of adjacent radiation units of different frequency bands can be suppressed to reduce the mutual coupling between adjacent radiation units of different frequency bands, thereby improving the radiation performance of the multi-frequency antenna. Those skilled in the art can obtain the length and / or width of the open-circuit suppression branch 134 through simulation or experiment after understanding the technical solutions of the present application to obtain suitable length and / or width data of the open-circuit suppression branch 134.

[0073] In another embodiment, as shown in FIG. 13, the open circuit suppression branch 134 is arranged on the outer surface of the feed post 130, and the open circuit suppression branch 134 comprises a connecting segment 1341 and an open circuit segment 1342. One end of the connecting segment 1341 is connected to the outer surface of the feed post 130, the other end of the connecting segment 1341 is connected to the open circuit segment 1342, and the connecting segment 1341 and the open circuit segment 1342 are arranged at an angle. In this embodiment, the open circuit segment 1342 is arranged parallel to the feed post 130, the open circuit segment 1342 extends towards the bottom of the feed post 130, and the connecting segment 1341 is arranged close to the top of the feed post 130. Preferably, the open circuit suppression branch 134 has an L-shaped structure.

[0074] Since the radiation unit 100 of the present application only has two feed posts 130, the conventional radiation unit has four balun arms or four feed posts, so that the radiation unit 100 of the present application has a larger installation space than the conventional radiation unit in the space where the feed posts 130 are located. Therefore, after the open circuit suppression branch 134 is loaded, the volume of the radiation unit 100 of the present application is still smaller than that of the conventional radiation unit, so as to reduce the mutual coupling between the adjacent radiation units of different frequency bands, improve the radiation performance, and facilitate the co-array arrangement of the radiation unit 100 with the radiation units of different frequency bands, thereby improving the radiation performance of the radiation unit 100.

[0075] In a further embodiment, as shown in FIG. 14, the open circuit suppression branch 134 further comprises a closing segment 1343. The other end of the open circuit segment 1342 is connected to one end of the closing segment 1343, and the other end of the closing segment 1343 is connected to the outer surface of the feed post 130, so that a hole structure is formed between the open circuit suppression branch 134 and the feed post 130.

[0076] In yet another embodiment, as shown in FIG. 15, the feed core 140 further comprises a filter branch 144 arranged on the extension segment 141 of the feed core 140. When the radiation unit 100 is arranged in a co-array with the radiation units of different frequency bands, the filter branch 144 can effectively suppress the mutual coupling between different frequency bands, so that the radiation unit 100 of the present application is facilitated to be arranged in a co-array with the radiation units of different frequency bands.

[0077] One or more filter branches 144 are arranged on the extension segment 141. The filter branch 144 has an L-shaped structure or a wave structure. In this embodiment, the filter branch 144 has an L-shaped structure, and two filter branches 144 are arranged on the extension segment.

[0078] In a further embodiment, the filter stub 144 can be used in combination with the open circuit rejection stub 134 of any of the above embodiments to improve the performance of the radiating element 100 in terms of rejection of mutual coupling, facilitating the co-arraying of the radiating element 100 with radiating elements of different frequency bands.

[0079] In a further embodiment, in combination with Fig. 16, the feed core 140 is further provided with a grounding section 145, one end of which is connected with the feed patch 143, and the other end of which is connected with the bottom of the feed post 130 of the same feed assembly 120, that is, the grounding section 145 is grounded with the bottom of the feed post 130, so that the feed core 140 is DC grounded, and the bottom of the feed post 130 is also grounded, facilitating the grounding of the radiating element 100 and improving the lightning protection performance of the radiating element 100.

[0080] In a typical embodiment of the present application, in combination with Fig. 4, the bottoms of the two feed posts 130 are connected, so that the two feed posts 130 are commonly grounded. Specifically, the two feed posts 130 are arranged in a spaced-apart manner, and the bottoms of the two feed posts 130 are connected through a linking section 135, so that the bottoms of the two feed posts 130 and the linking section 135 together form a common ground base.

[0081] In an embodiment, the two feed posts 130 and the linking section 135 are integrally formed by sheet metal or die casting, facilitating production and assembly of the two feed posts 130 in the radiating element 100, reducing assembly difficulty, saving assembly procedures, and reducing the production cost of the radiating element 100.

[0082] In a further embodiment, in combination with Fig. 17, the grounding section 145 of the feed core 140 is connected with the common ground base. In this embodiment, the grounding section 145 is connected with the linking section 135, facilitating the arrangement of the grounding section 145 and the DC grounding of the feed core 140. The grounding section 145 of each of the two feed cores 140 is grounded with the linking section 135.

[0083] In an embodiment, the feed post 130 is in a cylindrical structure or a square column structure.

[0084] In an embodiment, the feed core 140 is integrally formed by sheet metal or die casting, facilitating production. The radiating arm 110 is also integrally formed by sheet metal or die casting, facilitating production.

[0085] In one embodiment, the radiation unit 100 is further provided with a dielectric support, and the two pairs of radiation arms 110 are arranged on the dielectric support, and the dielectric support is further arranged on the top of the feed assembly 120 to assist in supporting the two pairs of radiation arms 110 through the dielectric support to maintain the structural stability of the radiation unit 100. In this embodiment, it is recommended that the dielectric support be made of plastic material.

[0086] The present application also provides an antenna 200, which, in combination with FIG. 18, includes at least one first array and at least one second array arranged on a reflector plate 240.

[0087] The first array operates in a first frequency band, and the first array includes at least one first radiation column 210, and the first radiation column 210 includes a plurality of first radiation units 211 operating in the first frequency band. In this embodiment, the first radiation unit 211 is the radiation unit 100 described above.

[0088] The second array operates in a second frequency band, and the second frequency band is a non-intersecting set with the first frequency band. The second array includes at least one second radiation column 220, and the second radiation column 220 includes a plurality of second radiation units 221 operating in the second frequency band. In this embodiment, the second radiation unit 221 is the radiation unit 100 described above. The first frequency band is lower than the second frequency band.

[0089] In one embodiment, in combination with FIG. 18, the first radiation column 210 and the second radiation column 220 are arranged along a second axis in sequence, and the first radiation column 210 and the second radiation column 220 are arranged in an interval.

[0090] In a further embodiment, because the volume of the feed assembly of the first radiation unit 211 is small, and the first radiation unit 211 is provided with an open-circuit suppression branch and / or a slot, when the first radiation column 210 and the second radiation column 220 are arranged in an array, the first radiation unit 211 can reduce the mutual coupling between the first radiation unit 211 and the second radiation unit 221, and improve the radiation performance of the second radiation unit 221.

[0091] In another embodiment, the first radiation column 210 and the second radiation column 220 are arranged along a first axis in a common aperture. In a further embodiment, because the volume of the feed assembly of the first radiation unit 211 is small, and the first radiation unit 211 is provided with an open-circuit suppression branch and / or a slot, when the first radiation column 210 and the second radiation column 220 are arranged in an array, the first radiation unit 211 can reduce the mutual coupling between the first radiation unit 211 and the second radiation unit 221, and improve the radiation performance of the second radiation unit 221.

[0092] In yet another embodiment, the antenna 200 further comprises at least one third array, which is disposed on the reflector plate 240, and operates at a third frequency band, the first frequency band is lower than the second frequency band, and the second frequency band is lower than the third frequency band. The third array comprises at least one third radiation column 230, which comprises a plurality of third radiation units 231 operating at the third frequency band. The first radiation column 210, the second radiation column 220 and the third radiation column 230 are disposed along the second axis in sequence. The first radiation column 210 and the second radiation column 220 are co-axially disposed or spaced apart, or the first radiation column 210 and the third radiation column 230 are co-axially disposed or spaced apart.

[0093] In further embodiments, due to the small volume of the feed assembly of the first radiation unit 211, and the open-circuit suppression branch and / or the slot provided on the first radiation unit 211, when the first radiation column 210, the second radiation column 220 and the third radiation column 230 are co-arrayed, the first radiation unit 211 can reduce the mutual coupling between the second radiation unit 221 and the third radiation unit 231, and improve the radiation performance of the second radiation unit 221 and the third radiation unit 231.

[0094] In further embodiments, in combination with Fig. 19, the antenna 200 comprises two first radiation columns 210, which are disposed along the second axis in sequence, and form a mounting space between the two first radiation columns 210, and one or more third radiation columns 230 are disposed in the mounting space.

[0095] In summary, the radiation unit of the present application is provided with two feed assemblies, which support two pairs of radiation arms, and due to the reduction in the number of feed columns of the radiation unit, the size of the feed assembly is greatly reduced, the miniaturization of the radiation unit is achieved, and the mutual coupling between adjacent radiation units is reduced, and the radiation performance of other radiation units co-arrayed with the radiation unit of the present application is improved.

[0096] The above description is only the preferred embodiments of the present application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the application scope involved in the present application is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above application concept. For example, the above features are replaced with the technical features with similar functions applied in the present application (but not limited to) to form technical solutions.

[0097] 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 matter 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 disclosed as example forms of implementing the claims.

Claims

1. A radiation unit comprising two pairs of radiation arms arranged in polarization quadrature and two feed assemblies corresponding to the two pairs of radiation arms respectively, the feed assemblies comprising a feed post and a feed core, each pair of radiation arms comprising a first radiation arm and a second radiation arm, the feed post feeding the first radiation arm, and the feed core feeding the second radiation arm.

2. The radiation unit of claim 1, wherein, The feed post is provided with a receiving groove extending from the bottom to the top of the feed post, and the feed core comprises an extension section arranged in the receiving groove.

3. The radiating element of claim 2, wherein, The top of the feed post is further provided with a first feeding portion directly connected or coupled to the first radiation arm.

4. The radiation unit of claim 2 or 3, wherein, The feed core further comprises a bridging section and a feed patch, the bridging section connecting the extension section and the feed patch respectively, the bridging section extending from the first radiation arm to the second radiation arm, and the feed patch being directly connected or coupled to the second radiation arm.

5. The radiation unit of any of claims 2 to 4, wherein, One or more filter stubs are arranged on the extension section.

6. The radiating element of claim 4, wherein, The feed core further comprises a grounding section, one end of which is connected to the feed patch, and the other end is grounded to the bottom of the feed post.

7. The radiation unit of any of claims 2 to 6, wherein, The bottoms of the feed posts of the two feed assemblies are connected to form a common ground base.

8. The radiating element of claim 7, wherein, The two feed posts form an integrated structure and are integrally formed.

9. The radiation unit of any of claims 1 to 8, wherein, The feed post comprises at least two bending sections connected to form a bending structure.

10. The radiation unit of any of claims 2 to 8, wherein, A slot is arranged in the bottom of the receiving groove, and the slot is arranged in parallel with the extension section.

11. The radiating element of claim 10, wherein, An open circuit suppression stub is further arranged on the feed post, and the open circuit suppression stub is hung on the slot.

12. Radiating element according to any one of claims 2 to 10, wherein At least one open circuit suppression stub is further arranged on the feed post, and the open circuit suppression stub is arranged on the outer surface of the feed post.

13. The radiating element of claim 12, wherein, The open circuit suppression stub comprises a connecting section and an open circuit section, one end of the connecting section is connected to the outer surface of the feed post, and the other end of the connecting section is connected to the open circuit section.

14. The radiating element of claim 13, wherein, The open circuit suppression stub further comprises a closing section, and the two ends of the closing section are connected to the feed post and the open circuit section respectively. 15.An antenna comprising at least one first array operating in a first frequency band, the first array comprising a first radiation unit, the first radiation unit being the radiation unit according to any one of claims 1 to 14.

16. The antenna of claim 15, wherein, The antenna further comprises at least one second array operating in a second frequency band, the first frequency band being lower than the second frequency band, and the second array comprising a second radiation unit, the second radiation unit being the radiation unit according to any one of claims 1 to 14.

17. The antenna of claim 16, wherein, The antenna further comprises at least one third array operating in a third frequency band, the second frequency band being lower than the third frequency band.

18. The antenna of claim 17, wherein, The first array comprises a first radiation column, the second array comprises a second radiation column, and the third array comprises a third radiation column, and the first radiation column is arranged in a common aperture with at least one column of second radiation columns and / or at least one column of third radiation columns.

Images