CN112736428A

CN112736428A - Radiation unit and antenna

Info

Publication number: CN112736428A
Application number: CN202011552170.2A
Authority: CN
Inventors: 方铁勇; 段红彬; 李明超; 王钦源; 吴哲才
Original assignee: Comba Telecom Technology Guangzhou Ltd; Jingxin RF Technology Guangzhou Co ltd
Current assignee: Comba Telecom Technology Guangzhou Ltd; Jingxin RF Technology Guangzhou Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-04-30
Anticipated expiration: 2040-12-24
Also published as: CN112736428B

Abstract

The invention provides a radiation unit and an antenna, and the technical scheme is that the radiation unit comprises a radiation surface and a balun, wherein the radiation surface and the balun are integrally formed by injection molding, the balun comprises a first substrate and a second substrate which are vertically crossed and integrally connected in a cross manner, the first substrate and the second substrate are integrally connected with the radiation surface, a radiation line is plated on the radiation surface, a first feeder line and a second feeder line which are used for feeding the radiation line are correspondingly plated on the first substrate and the second substrate respectively, and the first feeder line and the second feeder line are vertically orthogonal at the top of the balun and are not in contact with each other. Adopt integrative injection moulding's technology shaping to go out overall structure, radiation circuit, first feeder and second feeder are gone out to the mode shaping of rethread plastic electroplating, compare in panel beating, die-casting fashioned radiation unit, holistic weight is lower, compares in the radiation unit of PCB form, has simplified the concatenation technology between radiation face and the balun, is more convenient for production and processing, easily batch production.

Description

Radiation unit and antenna

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a radiation unit and an antenna.

Background

With the rapid development of communication technology, particularly 5G communication, the number of antenna radiation units required is greatly increased, and from the fact that only a few radiation units are needed for an original set of 4G antenna, the 5G antenna is increased by 10 times to dozens of times nowadays, the difficulty of antenna assembly is increased due to the large increase of the number of radiation units, the consistency and stability of the radiation units are closely related to the simplicity of an assembly structure, the simplification of an assembly flow and the like, and the important effect is played on the performance of the final antenna. The existing radiation unit has a production and processing mode in the form of die casting, metal plates or a PCB (printed Circuit Board), the radiation unit in the form of die casting and metal plates has the problems of heavier weight and incapability of forming a complex structure, the radiation unit in the form of the PCB needs to assemble a radiation surface and a balun, the assembly efficiency is lower, and the production cost is higher.

Disclosure of Invention

A primary object of the present invention is to provide a radiation unit that is light in weight and can simplify an assembly process to improve assembly efficiency.

Another object of the present invention is to provide an antenna using the above-mentioned radiating element.

In order to achieve the purpose, the invention provides the following technical scheme:

a radiation unit comprises a radiation surface and a balun, wherein the radiation surface and the balun are integrally injection-molded, the balun comprises a first substrate and a second substrate which are crossed vertically and integrally connected, the first substrate and the second substrate are integrally connected with the radiation surface, a radiation line is plated on the radiation surface, a first feeder line and a second feeder line which are used for feeding the radiation line are correspondingly plated on the first substrate and the second substrate respectively, and the first feeder line and the second feeder line are perpendicular to the top of the balun and are not in contact with each other.

Further setting: and an avoidance opening for the first feeder line to pass through is formed in the position, close to the first substrate, of the top of the second substrate.

Further setting: the radiation surface is provided with a yielding hole for the second feeder line to penetrate out, and the second feeder line penetrates out of the yielding hole from one side of the first substrate and extends to the other side of the first substrate after being wound on the radiation surface.

Further setting: the avoiding port extends to the radiation surface and is communicated with the avoiding hole.

Further setting: the first substrate and the second substrate are respectively plated with a ground layer corresponding to one side far away from the first power feed line and the second power feed line.

Further setting: the radiating plane is provided with a plating hole, one side of the radiating plane, which is far away from the radiating line, is plated with a conducting area at the plating hole, the conducting area is connected with the grounding layer, and the first feeder line and the second feeder line are respectively used for coupling feeding of the radiating line.

Further setting: and one ends of the first substrate and the second substrate, which are far away from the radiation surface, are protruded to form mounting pins which can be inserted into the mounting holes of the feed bottom plate.

Further setting: and an identification point which can be identified by a sensor so as to facilitate the installation of the radiation unit on the feed bottom plate is arranged on one side of the radiation surface, which is far away from the balun.

Further setting: and the radiation surface is provided with a fabrication hole which is convenient for the clamp to pass through to clamp the radiation unit.

The invention also provides an antenna which comprises a reflecting plate, a feeding bottom plate and the radiating unit, wherein one ends of the first substrate and the second substrate, which are far away from the radiating surface, are connected to the feeding bottom plate, and a feeding circuit connected with the first feeder line and the second feeder line is arranged on the feeding bottom plate.

Compared with the prior art, the scheme of the invention has the following advantages:

1. in the radiation unit, an integral structure is formed by adopting an integral injection molding process, and then the radiation circuit, the first feeder line and the second feeder line are formed by adopting a plastic electroplating mode.

2. According to the radiation unit, the abdication hole is formed in the radiation surface, the addication hole is formed in the top of the second substrate, the addication hole extends to the top of the radiation surface and is communicated with the abdication hole, the design can facilitate the first feeder line and the second feeder line to be arranged and wound on the top of the balun, and feed the radiation circuit on the radiation surface, the influence of the arrangement of the addication hole and the addication hole on the strength of the whole structure of the radiation unit is small, on the contrary, the electroplating difficulty of the first feeder line and the second feeder line is greatly improved, the process difficulty is reduced, in addition, the structural design also enables the radiation unit to be formed at one time during injection molding, a core-pulling structure is not required to be designed, or punching operation is not required after injection molding, the difficulty of mold design is reduced, and the production efficiency of products is improved.

3. In the radiation unit related by the invention, one of the two sides of the first substrate is provided with the first feeder line, the other side of the first substrate is provided with the ground layer, one of the two sides of the second substrate is provided with the second feeder line, and the other side of the second substrate is provided with the ground layer, so that the first substrate and the second substrate form a structure similar to a microstrip line, which is beneficial to the transmission of a circuit and improves the signal transmission performance.

4. In the radiation unit, the identification point is designed on the radiation surface, the radiation unit is manufactured by adopting an injection molding process, the whole weight is lighter, the assembly direction of the radiation unit can be automatically identified by the identification point when an SMT (surface mounting technology) process is adopted, the radiation unit is accurately assembled on the feed bottom plate, and compared with the existing mode of manually installing the radiation unit, the production efficiency is greatly improved.

5. In the antenna designed by the invention, by adopting the radiation unit, the overall weight of the antenna is greatly reduced, meanwhile, the production process is simplified, the production efficiency is improved, the production cost of the antenna is reduced, and the burden of manual operation is also reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a radiation unit according to an embodiment of the present invention;

FIG. 2 is a schematic view of another perspective of a radiating element according to an embodiment of the present invention;

FIG. 3 is a schematic view of another perspective of a radiating element according to an embodiment of the present invention;

fig. 4 is a schematic view of the assembly of the radiating element and the feed backplane in an embodiment of the present invention;

FIG. 5 is an exploded view of a radiating element and a feed backplane in accordance with an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an antenna according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

As shown in fig. 1 to 3, the present invention provides a radiation unit 1, including a radiation surface 11 and a balun 12, where the radiation surface 11 and the balun 12 are integrally injection-molded, and the balun 12 includes a first substrate 121 and a second substrate 122 that are integrally connected in a cross-shaped perpendicular and crossed manner, that is, a projection of the balun 12 on the radiation surface 11 is in a cross-shape. The first substrate 121 and the second substrate 122 are integrally connected to the radiation surface 11, the radiation surface 11 is plated with a radiation line 111, in this embodiment, the radiation line 111 is disposed on a side of the radiation surface 11 away from the balun 12, that is, on a front side of the radiation surface 11, and in other embodiments, the radiation line 111 may be designed on both front and back sides of the radiation surface 11. The first substrate 121 and the second substrate 122 are respectively and correspondingly plated with a first feed line 123 and a second feed line 124 for feeding the radiation line 111, and the first feed line 123 and the second feed line 124 are vertically orthogonal on the top of the balun 12 and do not contact with each other.

Adopt integrative injection moulding's technology shaping to go out overall structure, radiation line 111 is gone out in the mode shaping of rethread plastic electroplating, first feeder 123 and second feeder 124, compare in the panel beating, die-casting fashioned radiation unit 1, holistic weight is lower, and can form more complicated circuit, compare in the radiation unit 1 of PCB form, the concatenation technology between radiation face 11 and the balun 12 has been simplified, the production and processing of being more convenient for, easily batch production, in addition, radiation unit 1 whole weight is lighter, can adopt SMT paster production technology and feed bottom plate 2 to assemble, greatly promote production efficiency.

Further, an escape opening 1221 through which the first feeder line 123 passes is formed at the top of the second substrate 122 near the first substrate 121. The first feeding line 123 is plated on the surface of the first substrate 121, the first feeding line 123 extends from the bottom end of one side of the second substrate 122 to the top, passes through the avoiding opening 1221, extends to the other side of the second substrate 122, and extends to the bottom end direction, only one end of the first feeding line 123 is located at the bottom end of the first substrate 121, and the end is a feeding end and is used for being connected with the feeding circuit 22 of the feeding base plate 2.

Furthermore, the radiation surface 11 is provided with a yielding hole 112 for the second feeding line 124 to pass through, and the second feeding line 124 passes through the yielding hole 112 from one side of the first substrate 121 and extends to the other side of the first substrate 121 after being wound on the radiation surface 11. The second feeding line 124 is plated on the surface of the second substrate 122, the second feeding line 124 extends from the bottom end of one side of the first substrate 121 to the radiation surface 11 and passes through the abdication hole 112, extends to the other side of the first substrate 121 after winding on the surface of the radiation surface 11, and extends back to the surface of the second substrate 122 to the bottom, wherein only one end of the second feeding line 124 is located at the bottom end of the second substrate 122, and the end is a feeding end and is used for being connected with the feeding circuit 22 of the feeding backplane 2.

In this embodiment, the first feeder line 123 and the second feeder line 124 couple and feed the radiation line 111, the first feeder line 123 is wound around the balun 12, and the second feeder line 124 passes through the surface of the radiation surface 11 and is wound, so that the first feeder line 123 and the second feeder line 124 avoid each other, and at the same time, the two pairs of radiation arms with orthogonal polarization on the radiation surface 11 can be fed. In other embodiments, the radiation surface 11 may not have the avoiding hole 112, and instead, a hole similar to the avoiding opening 1221 is formed in the first substrate 121 for passing through the second feeding line 124. That is, the first feeder 123 and the second feeder 124 are both wound on the balun 12. In other embodiments, instead of opening the balun 12, only the radiation surface 11 may be opened, and both the first feeding line 123 and the second feeding line 124 may be wound on the radiation surface 11, that is, both the first feeding line 123 and the second feeding line 124 may be led out to the front surface of the radiation surface 11.

Further, the avoidance hole 1221 extends to the radiation surface 11 and communicates with the avoidance hole 112. In this embodiment, two yielding holes 112 are formed in the radiation surface 11, the two yielding holes 112 are respectively located at two sides of the first substrate 121, the second feeder line 124 penetrates out of one of the yielding holes 112 to the front surface of the radiation surface 11, and after the winding is performed on the front surface of the radiation surface 11, the second feeder line passes through the other yielding hole 112 and extends back to the balun 12. In other embodiments, the escape opening 1221 may not extend through to the top of the radiating surface 11.

Through running through to the radiation face 11 top and the hole 112 intercommunication of stepping down dodging mouthful 1221, in radiation unit 1 production process, only need through injection moulding technology can one shot forming, can the holistic structure of radiation unit 1 of shaping out through last bed die compound die, and need not to design the structure of loosing core, or after injection moulding drilling formation dodge mouthful 1221, the fashioned technology of radiation unit 1 has been simplified greatly, the production degree of difficulty is reduced, the production efficiency of radiation unit 1 has been promoted. If the escape opening 1221 does not penetrate to the top of the radiation surface 11, it is difficult to form the radiation unit 1 structure with the escape opening 1221 by one-time injection molding.

Further, the first substrate 121 and the second substrate 122 are respectively plated with a ground layer 125 corresponding to a side far away from the first power feed line 123 and the second power feed line 124, in this embodiment, a side of the first substrate 121 facing away from the first power feed line 123 and a side of the second substrate 122 facing away from the second power feed line 124 are both plated in a full coverage manner, and the sides of the first power feed line 123 and the second power feed line 124 are designed into power feed lines with required shapes according to power feed requirements.

By arranging the ground layer 125 on the back sides of the first and second

power feeding lines

123 and 124, a microstrip line structure is formed together with the balun 12 made of an insulating material, and the power feeding performance of the first and second

power feeding lines

123 and 124 is improved.

In this embodiment, the second substrate 122 does not have the avoiding opening 1221 on the side close to the ground layer 125, that is, the ground layers 125 on the first substrate 121 on both sides of the second substrate 122 are separated from each other, and similarly, the ground layers 125 on the second substrate 122 on both sides of the first substrate 121 are separated from each other. The difficulty of the structural design of the balun 12 can be reduced through the structural design, namely the difficulty of processing of the radiation unit 1 is reduced, and the processing efficiency of the radiation unit 1 is improved.

Furthermore, the radiation surface 11 is provided with a plated hole 113, a conductive area 114 is plated on the side of the radiation surface 11 away from the radiation line 111 at the plated hole 113, and the conductive area 114 is connected to the ground layer 125. In this embodiment, four plated holes 113 are formed in the radiation surface 11, each plated hole 113 is electrically connected to a corresponding group of radiation arms, the plated holes 113 are metal vias, and the conductive areas 114 and the ground layer 125 are electrically connected at the connecting corners of the radiation surface 11 and the first substrate 121 or the second substrate 122. In this embodiment, the plated hole 113 is a circular hole, and in other embodiments, the plated hole 113 may have other shapes, such as a square hole.

Through the design, the radiation line 111 on the radiation surface 11 can be connected with the ground layer 125 only through the electroplating hole 113, the first feeder line 123 and the second feeder line 124 feed the radiation line 111 in a coupling feeding mode, the radiation unit 1 does not need to be assembled with other parts, the whole structure can be quickly formed only through integral injection molding and selective electroplating, the processing technology of the radiation unit 1 is greatly simplified, the production efficiency is improved, and the antenna is suitable for the environment of the large-batch requirement of the existing 5G antenna on the radiation unit 1.

As shown in fig. 4 and 5, one ends of the first substrate 121 and the second substrate 122, which are far away from the radiating surface 11, protrude out of the mounting pins 1211 that can be inserted into the mounting holes 21 of the feeding backplane 2. In this embodiment, two mounting pins 1211 are correspondingly disposed at the bottom of the first substrate 121 and the second substrate 122, respectively, a feeding end of the first feeding line 123 extends to the mounting pins 1211, and a feeding end of the second feeding line 124 also extends to the mounting pins 1211.

Through the structural arrangement, the balun 12 can be quickly positioned by using the mounting foot 1211 when being mounted with the feeding bottom plate 2, the consistency of assembling the balun 12 with the feeding bottom plate 2 is improved, and the accuracy of welding the first feeder line 123 and the second feeder line 124 on the balun 12 with the feeding circuit 22 on the feeding bottom plate 2 is ensured.

Preferably, the cross section of the mounting pin 1211 is in a trapezoid structure, and when the mounting pin 1211 is inserted into the mounting hole 21 of the feeding base plate 2, the mounting pin 1211 can play a certain guiding role, so that the mounting pin 1211 is more easily inserted into the mounting hole 21, and the difficulty of assembly is reduced.

Further, the side of the radiating surface 11 away from the balun 12 is provided with an identification point 115 that can be identified by a sensor to facilitate mounting the radiating element 1 on the feeding substrate 2. In this embodiment, the identification point 115 is plated on the blank of the front surface of the radiation surface 11, i.e. the area not connected to the radiation line 111, by selective plating. In other embodiments, the identification point 115 may also be arranged on the back of the radiation surface 11.

In the invention, as the radiation unit 1 is integrally formed by injection molding, the whole weight is lighter, compared with the existing mode of manually installing the radiation unit 1, the radiation unit 1 in the invention can adopt a more automatic assembly mode, and the SMT patch technology is adopted to sequentially assemble a plurality of radiation units 1 on the feed bottom plate 2, so that the assembly efficiency is higher. In this embodiment, by providing the identification point 115 on the radiation surface 11, the identification point 115 can be sensed by the sensor, so as to accurately determine the assembly direction of the radiation unit 1, ensure the accuracy of the assembled direction of the radiation unit 1 and the feed base plate 2, and reduce the occurrence of rework and decrease the production efficiency.

Furthermore, the radiation surface 11 is provided with process holes 116 that can facilitate a clamp to pass through to clamp the radiation unit 1, in this embodiment, the radiation surface 11 is provided with one process hole 116 in a direction from the center to four opposite corners of the radiation surface, and there are four process holes 116 in total, where three process holes 116 are the same distance from the center of the radiation surface 11, and the distance from the remaining one process hole 116 to the center of the radiation surface 11 is farther than the distance from the other three process holes 116 to the center of the radiation surface 11.

Through such structural design, make to form asymmetric structure on the radiating surface 11, before radiating element 1 electroplates, the orientation of placing of radiating element 1 is discerned to these four asymmetrically distributed fabrication holes 116 of accessible, ensures the accuracy nature of electroplating, and in addition, fabrication hole 116 also can be convenient for anchor clamps and carry out the centre gripping to radiating element 1, all can promote machining efficiency at electroplating and SMT paster in-process.

Furthermore, the first substrate 121 and the second substrate 122 are respectively mounted along two diagonal directions of the radiation surface 11, a rib 117 is disposed along the diagonal direction of the radiation surface 11 on one side of the radiation surface 11 close to the balun 12, and the rib 117 is connected with the first substrate 121 and the second substrate 122. By arranging the reinforcing ribs 117, the connection strength between the radiation surface 11 and the balun 12 is further improved, so that the structural reliability of the whole radiation unit 1 is ensured.

With reference to fig. 6, the present invention further provides an antenna, which includes a reflection plate 3, a feeding substrate 2, and the radiation unit 1, where one ends of the first substrate 121 and the second substrate 122, which are far away from the radiation surface 11, are connected to the feeding substrate 2, and a feeding circuit 22 connected to a first feeding line 123 and a second feeding line 124 is disposed on the feeding substrate 2. The feeding bottom plate 2 is provided with mounting holes 21 for the mounting pins 1211 on the first substrate 121 and the second substrate 122 to pass through. Each radiation unit 1 corresponds to four mounting holes 21, the four mounting holes 21 are distributed in a cross shape, a feeding circuit 22 is arranged at two mounting holes 21, and after the first substrate 121 and the second substrate 122 are connected with the feeding base plate 2, the feeding circuit 22 on the feeding base plate 2 is welded with the first feeding line 123 and the second feeding line 124, so as to feed the first feeding line 123 and the second feeding line 124.

In this embodiment, the antenna includes a plurality of radiation arrays, and every radiation array includes a plurality of radiating element 1, a plurality of radiation arrays are and predetermine the arrangement mode and arrange to be connected with same feed bottom plate 2, but the overall arrangement that misplaces, the overall arrangement that can also not misplace can be done and fixed inclination antenna also can be regarded as the electric tilt angle antenna.

In summary, the scheme of the invention has the following advantages:

1. in the radiation unit 1 related to the invention, an integral structure is formed by adopting an integral injection molding process, and then the radiation circuit 111, the first feeder line 123 and the second feeder line 124 are formed in a plastic electroplating mode, compared with the radiation unit 1 formed by sheet metal and die casting, the radiation unit 1 has lower integral weight, and can form a more complex circuit, compared with the radiation unit 1 in a PCB form, the splicing process between the radiation surface 11 and the balun 12 is simplified, the production and processing are more convenient, and the batch production is easy.

2. In the radiation unit 1 according to the present invention, by providing the relief hole 112 in the radiation surface 11, an avoiding opening 1221 is formed at the top of the second base plate 122, and the avoiding opening 1221 extends to the top of the radiation surface 11 and is communicated with the avoiding hole 112, such a design may facilitate routing and routing of the first feed line 123 and the second feed line 124 on top of the balun 12, the radiation line 111 on the radiation surface 11 is fed, the opening of the avoiding opening 1221 and the avoiding hole 112 has less influence on the strength of the whole structure of the radiation unit 1, but greatly improves the electroplating difficulty of the first feeder line 123 and the second feeder line 124, reduces the process difficulty, in addition, the radiation unit 1 can be molded at one time by the structural design without designing a core-pulling structure or punching operation after injection molding, so that the difficulty of mold design is reduced, and the production efficiency of products is improved.

3. In the radiation unit 1 according to the present invention, the first feeding line 123 is designed on one of the two sides of the first substrate 121, the ground layer 125 is designed on the other side, the second feeding line 124 is designed on one of the two sides of the second substrate 122, and the ground layer 125 is designed on the other side, so that microstrip-like structures are formed on the first substrate 121 and the second substrate 122, which is beneficial to circuit transmission and improves signal transmission performance.

4. In the radiation unit 1, the identification point 115 is designed on the radiation surface 11, the radiation unit 1 is manufactured by adopting an injection molding process, the whole weight is light, the assembly direction of the radiation unit 1 can be automatically identified by the identification point 115 when an SMT (surface mount technology) process is adopted, the radiation unit 1 is accurately assembled on the feed baseplate 2, and compared with the existing mode of manually installing the radiation unit 1, the production efficiency is greatly improved.

5. In the antenna designed by the invention, by adopting the radiation unit 1, the overall weight of the antenna is greatly reduced, meanwhile, the production process is simplified, the production efficiency is improved, the production cost of the antenna is reduced, and the burden of manual operation is also reduced.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A radiation unit comprises a radiation surface and a balun, and is characterized in that: the radiation surface and the integrated injection moulding of balun, the balun includes first base plate and the second base plate that is cross perpendicular alternately integrative connection, first base plate and second base plate all are connected with the radiation surface is integrative, it has the radiation circuit to plate on the radiation surface, it is first feeder and the second feeder to correspond to electroplate for the radiation circuit feed on first base plate and the second base plate respectively, first feeder and second feeder are in the perpendicular quadrature of balun top and do not contact each other.

2. The radiating element of claim 1, wherein: and an avoidance opening for the first feeder line to pass through is formed in the position, close to the first substrate, of the top of the second substrate.

3. The radiating element of claim 2, wherein: the radiation surface is provided with a yielding hole for the second feeder line to penetrate out, and the second feeder line penetrates out of the yielding hole from one side of the first substrate and extends to the other side of the first substrate after being wound on the radiation surface.

4. The radiating element of claim 3, wherein: the avoiding port extends to the radiation surface and is communicated with the avoiding hole.

5. The radiating element of claim 1, wherein: the first substrate and the second substrate are respectively plated with a ground layer corresponding to one side far away from the first power feed line and the second power feed line.

6. The radiating element of claim 5, wherein: the radiating plane is provided with a plating hole, one side of the radiating plane, which is far away from the radiating line, is plated with a conducting area at the plating hole, the conducting area is connected with the grounding layer, and the first feeder line and the second feeder line are respectively used for coupling feeding of the radiating line.

7. The radiating element of claim 1, wherein: and one ends of the first substrate and the second substrate, which are far away from the radiation surface, are protruded to form mounting pins which can be inserted into the mounting holes of the feed bottom plate.

8. The radiating element of claim 7, wherein: and an identification point which can be identified by a sensor so as to facilitate the installation of the radiation unit on the feed bottom plate is arranged on one side of the radiation surface, which is far away from the balun.

9. The radiating element of claim 8, wherein: and the radiation surface is provided with a fabrication hole which is convenient for the clamp to pass through to clamp the radiation unit.

10. An antenna, comprising a reflector plate, characterized in that: the radiating element of any one of claims 1 to 9, further comprising a feeding backplane to which the ends of the first and second substrates remote from the radiating surface are connected, and a feeding circuit connected to the first and second feeding lines being provided on the feeding backplane.