CN217062520U - Antenna unit and communication device - Google Patents

Abstract

The utility model relates to an antenna unit and communication device, antenna unit are including moving looks ware, feed spare and first coupling piece. The phase shifter comprises a cavity and a feed network arranged in the cavity, wherein the cavity is provided with an insertion port, and the feed network is provided with a signal transceiving end. The bottom of feed piece links to each other with first coupling block, and first coupling block can pass the inserted hole and insert in the cavity, and first coupling block is located the top of signal receiving and dispatching end and is linked to each other with the coupling of signal receiving and dispatching end. On one hand, the feed element and the signal receiving and transmitting end do not need to be connected with each other in a welding mode, so that the pollution to the environment caused by electroplating welding in the traditional technology can be avoided, and the cost can be reduced; tin plating is not needed, so that the radiation efficiency is ensured; welding spots are reduced, so that the product performance of the antenna unit is ensured, and the intermodulation index is ensured to be reliable. On the other hand, the feeding piece and the first coupling block are directly inserted into the cavity through the insertion opening so as to be coupled and connected with the signal transceiving end, and are assembled together, namely, the assembly efficiency is high.

Description

Antenna unit and communication device

Technical Field

The utility model relates to an antenna technology field especially relates to an antenna unit and communication device.

Background

With the continuous development of mobile communication technology, the system puts higher requirements on the base station antenna such as high integration, high radiation efficiency, high index requirement, environmental protection and the like. The feed piece and the feed network of the antenna unit are directly connected, so that the integration level of the antenna can be greatly improved and the insertion loss can be reduced by avoiding the adoption of coaxial cable connection and other modes, and the improvement of the radiation efficiency becomes a design choice of more and more antenna manufacturers. However, in this technique, it is usually necessary to weld the feeding element and the feeding network for feeding, and at this time, the feeding element and the feeding network are connected by electroplating, which causes at least the following disadvantages: (1) the electroplating causes the increase of production cost and environmental pollution; (2) because the conductivity of tin is lower than that of metals such as aluminum, copper and the like, the insertion loss is increased due to tin plating, the radiation efficiency is reduced, and meanwhile, the assembly efficiency is lower; (3) and more welding spots are added for welding the feed element and the feed network, so that intermodulation indexes are influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to overcome the defects of the prior art and provide an antenna unit and a communication device, which can ensure the assembly efficiency without welding, and at the same time, the production cost is reduced and the antenna index is good.

The technical scheme is as follows: an antenna unit, comprising:

the phase shifter comprises a cavity and a feed network arranged in the cavity, the cavity is provided with an insertion port, and the feed network is provided with a signal transceiving end;

the bottom of feed spare with first coupling block links to each other, first coupling block can pass the inserted hole inserts in the cavity, first coupling block is located the top of signal receiving and dispatching end and with the coupling of signal receiving and dispatching end links to each other.

In the antenna unit, the bottom end of the feed element is connected with the first coupling block, so that the first coupling block directly passes through the insertion hole to be inserted into the cavity in the assembling process, and the first coupling block is arranged above the signal transceiving end and is coupled with the signal transceiving end. Therefore, on one hand, the feed piece and the signal receiving and transmitting end do not need to be connected with each other in a welding mode, so that the environment pollution caused by electroplating welding in the traditional technology can be avoided, and the cost can be reduced; tin plating is not needed, so that the radiation efficiency is ensured; the welding spots are reduced, so that the product performance of the antenna unit is ensured, and the intermodulation index is ensured to be reliable. On the other hand, the feeding piece and the first coupling block are directly inserted into the cavity through the insertion opening so as to be coupled and connected with the signal transceiving end, and are assembled together, namely, the assembly efficiency is high.

In one embodiment, the feed element is integrally formed with the first coupling block by casting, forging, stamping or die casting.

In one embodiment, the antenna unit further includes a second coupling block disposed between the signal transceiving terminal and the first coupling block, the signal transceiving terminal is coupled to the second coupling block, and the first coupling block is disposed above the second coupling block and coupled to the second coupling block.

In one embodiment, the surface of the first coupling block facing the second coupling block is one or more of a concave surface, a plane surface and a convex surface, and the surface of the second coupling block is adapted to the surface of the first coupling block.

In one embodiment, the surface of the first coupling block facing the second coupling block is an arc-shaped concave surface or an arc-shaped convex surface.

In one embodiment, the arc angle corresponding to the arc concave surface or the arc convex surface is defined as a, and a is greater than 180 °.

In one embodiment, the second coupling block is provided with a coupling cavity corresponding to the signal transceiving end, and the signal transceiving end is inserted into the coupling cavity.

In one embodiment, the antenna unit further comprises a first insulating spacer and a second insulating spacer; the first coupling block is connected with the second coupling block through the first insulating isolator, and the second coupling block is connected with the signal transceiving end through the second insulating isolator.

In one embodiment, the first insulating spacer is an insulating sleeve sleeved outside the first coupling block or the second coupling block, or an oxide layer disposed on an outer wall of the first coupling block or the second coupling block; the second insulating isolation piece is an insulating sleeve sleeved outside the signal receiving and transmitting end, or an oxide layer arranged on the outer wall of the signal receiving and transmitting end, or an oxide layer arranged on the inner wall of the coupling cavity of the second coupling block.

In one embodiment, the antenna unit further comprises a reflecting plate and a radiating unit; the cavity is connected with the reflecting plate; the radiation unit is arranged on the reflecting plate, a metal reflecting surface is arranged on the surface of the reflecting plate, and the radiation unit is electrically connected with the metal reflecting surface.

A communication device comprises the antenna unit.

In the communication device, the bottom end of the feed element is connected with the first coupling block, and the first coupling block directly penetrates through the insertion hole to be inserted into the cavity in the assembling process and is arranged above the signal transceiving end and is coupled and connected with the signal transceiving end. Therefore, on one hand, the feed piece and the signal receiving and transmitting end do not need to be connected with each other in a welding mode, so that the environment pollution caused by electroplating welding in the traditional technology can be avoided, and the cost can be reduced; tin plating is not needed to ensure the radiation efficiency; the welding spots are reduced, so that the product performance of the antenna unit is ensured, and the intermodulation index is ensured to be reliable. On the other hand, the feeding piece and the first coupling block are directly inserted into the cavity through the insertion opening so as to be coupled and connected with the signal transceiving end, and are assembled together, namely, the assembly efficiency is high.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of a perspective structure of an antenna unit according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the structure of FIG. 1 with the reflection plate and the phase shifter hidden;

FIG. 4 is an exploded view of the structure of FIG. 3 with the radiating elements hidden;

fig. 5 is an exploded view of the structure shown in fig. 3 with the radiation unit hidden.

10. A phase shifter; 11. a cavity; 111. an insertion opening; 12. a signal transceiving end; 20. a feeding member; 21. a first vertical section; 22. a transverse segment; 23. a second vertical section; 30. a first coupling block; 40. a second coupling block; 41. a coupling chamber; 50. a first insulating spacer; 60. a second insulating spacer; 70. a reflective plate; 80. a radiation unit; 81. a vibrator seat; 82. a radiating arm.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 to 3, fig. 1 shows a schematic view structure of an antenna unit according to an embodiment of the present invention, fig. 2 shows another schematic view structure of fig. 1, and fig. 3 shows one schematic view structure of fig. 1 with the reflection plate 70 and the phase shifter 10 hidden. An embodiment of the present invention provides an antenna unit, which includes a phase shifter 10, a feed element 20 and a first coupling block 30. The phase shifter 10 includes a cavity 11 and a feeding network (not shown) disposed inside the cavity 11, the cavity 11 has an insertion port 111, and the feeding network has a signal transceiving end 12. The bottom end of the feeding element 20 is connected to the first coupling block 30, the first coupling block 30 can be inserted into the cavity 11 through the insertion opening 111, and the first coupling block 30 is disposed above the transceiver end 12 and coupled to the transceiver end 12.

In the above antenna unit, since the bottom end of the feeding element 20 is connected to the first coupling block 30, during the assembly process, the first coupling block 30 is directly inserted into the cavity 11 through the insertion hole 111 (as shown by the arrow Z in fig. 3), and the first coupling block 30 is disposed above the signal transceiving terminal 12 and coupled to the signal transceiving terminal 12. Therefore, on one hand, the feeder 20 and the signal transceiving end 12 do not need to be connected with each other in a welding manner, so that the pollution to the environment caused by electroplating welding in the traditional technology can be avoided, and the cost can be reduced; tin plating is not needed to ensure the radiation efficiency; welding spots are reduced, so that the product performance of the antenna unit is ensured, and the intermodulation index is ensured to be reliable. On the other hand, the feeding element 20 and the first coupling block 30 are directly inserted into the cavity 11 through the insertion opening 111 to couple with the signal transceiving terminal 12, and are assembled together, i.e. the assembly efficiency is high.

It should be noted that, the coupled connection in this embodiment means that there is no electrical contact between the two objects, but energy is coupled and transferred between the two objects by arranging the two objects at a distance from each other. For example, the feeding element 20 is coupled to the transceiver end 12, that is, the feeding element 20 is not in electrical contact with the transceiver end 12, but energy is transmitted between the feeding element 20 and the transceiver end 12 in a coupled manner by setting the distance between the feeding element 20 and the transceiver end 12, so that the transceiver end 12 can transmit the network signal to the feeding element 20 in a coupled manner, and the feeding element 20 transmits the network signal to the radiating element 80, and of course, the radiating element 80 can also feed back the received antenna signal to the feeding element 20, and the feeding element 20 transmits the received antenna signal to the transceiver end 12 in a coupled manner.

Referring to fig. 3, in one embodiment, the feeding element 20 and the first coupling block 30 are integrally formed by casting, forging, stamping or die casting. Therefore, no welding point exists between the feed part 20 and the first coupling block 30, so that the product performance of the antenna unit is ensured, and the intermodulation index is ensured to be reliable.

Referring to fig. 4 or fig. 5, fig. 4 is an exploded view of the structure of fig. 3 with the radiation unit 80 hidden; fig. 5 is an exploded view of the structure of fig. 3 with the radiation unit 80 hidden. Fig. 5 differs from fig. 4 in the structure of the second coupling block 40. In one embodiment, the antenna unit further includes a second coupling block 40 disposed between the signal transceiving end 12 and the first coupling block 30. The signal transceiving terminal 12 is coupled to the second coupling block 40, and the first coupling block 30 is disposed above the second coupling block 40 and coupled to the second coupling block 40. Thus, when the second coupling block 40 is added between the transceiving terminal 12 and the first coupling block 30, on one hand, the first coupling block 30 is connected to the transceiving terminal 12 through the second coupling block 40, that is, indirectly connected to the transceiving terminal 12; on the other hand, the first coupling block 30 is disposed above the second coupling block 40, i.e. may be disposed directly above the transceiver end 12, or may be disposed indirectly above the transceiver end 12; in addition, because the signal transceiving end 12 is coupled with the second coupling block 40, and the second coupling block 40 is coupled with the first coupling block 30, the first coupling block 30 and the second coupling block 40 which are additionally arranged can ensure enough coupling quantity intensity, and meanwhile, the environment pollution caused by electroplating welding in the traditional technology can be avoided by adopting a coupling connection mode, and the cost can be reduced; tin plating is not needed, so that the radiation efficiency is ensured; the welding spots are reduced, so that the product performance of the antenna unit is ensured, and the intermodulation index is ensured to be reliable. In addition, compared with the mode that the second coupling block 40 and the signal transceiving end 12 are arranged into an integrated structure, the second coupling block 40 with relatively thick thickness is manufactured separately, so that the feeding network can be produced and processed conveniently, and meanwhile, the material consumption can be greatly reduced.

As an alternative, the signal transceiving terminal 12 and the second coupling block 40 are connected to form an integrated structure, that is, the signal transceiving terminal 12 and the second coupling block 40 are integrally formed, for example, by casting, forging, stamping or die casting.

Referring to fig. 3 to 5, in one embodiment, the surface of the first coupling block 30 facing the second coupling block 40 is one or more of a concave surface (as shown in fig. 4 and 5), a flat surface and a convex surface, and the surface of the second coupling block 40 is adapted to the surface of the first coupling block 30. Therefore, after the first coupling block 30 is inserted into the cavity 11 through the insertion opening 111, the first coupling block 30 and the second coupling block 40 can be coupled and connected, so that the assembly is convenient, and the coupling strength of the two coupling blocks is strong.

Referring to fig. 3 to 5, in one embodiment, a surface of the first coupling block 30 facing the second coupling block 40 is an arc-shaped concave surface (as shown in fig. 4 and 5) or an arc-shaped convex surface. Thus, the surface of the second coupling block 40 facing the first coupling block 30 is provided with an arc convex surface or an arc concave surface, so that the two are mutually matched after being assembled, and the coupling strength of the two is high. In addition, the arc shape can obtain a larger coupling area under the same size, thereby improving the coupling degree between the first coupling block 30 and the second coupling block 40.

In one embodiment, the arc angle corresponding to the arc concave surface or the arc convex surface is defined as a, and a is larger than 180 degrees. So, first coupling block 30 and the two equipment backs of second coupling block 40, not only coupling strength is great, and can realize both joints together fixedly under self elastic force effect, and stability is better, just so need not to adopt other auxiliary fixtures to fix first coupling block 30 and second coupling block 40 together.

As an alternative, a ≦ 180 °, the first coupling block 30 and the second coupling block 40 are both fixed together by other auxiliary fixing means.

Referring to fig. 3 to 5, in one embodiment, the second coupling block 40 is provided with a coupling cavity 41 corresponding to the signal transceiving terminal 12, and the signal transceiving terminal 12 is inserted into the coupling cavity 41. In this way, the signal transceiving terminal 12 is coupled with the second coupling block 40 by being inserted into the coupling cavity 41, so that the coupling strength is high, and the assembly of the two is fast.

Specifically, the cross section of the transceiving end 12 in the extension direction thereof includes, but is not limited to, a square or a circle, and correspondingly, the cross section of the coupling cavity 41 in the insertion direction of the transceiving end 12 includes, but is not limited to, a square or a cylinder.

Referring to fig. 3 to 5, in one embodiment, the antenna unit further includes a first insulating spacer 50 and a second insulating spacer 60. The first coupling block 30 is connected to the second coupling block 40 through a first insulating spacer 50, and the second coupling block 40 is connected to the signal transceiving terminal 12 through a second insulating spacer 60. Thus, the first insulating spacer 50 can prevent the first coupling block 30 from electrically contacting the second coupling block 40. Therefore, the two coupling blocks can be tightly matched and assembled together without electrical contact, the assembling effect is stable, and stable and smooth signal transmission between the first coupling block 30 and the second coupling block 40 can be ensured. Similarly, the second coupling block 40 can be prevented from electrically contacting the signal transceiver terminal 12 by the second insulating spacer 60. Therefore, the two parts can be tightly fitted and assembled together without electrical contact, the assembly effect is stable, and stable and smooth signal transmission between the signal transceiving terminal 12 and the second coupling block 40 can be ensured.

In one embodiment, the first insulating spacer 50 is an insulating sleeve sleeved outside the first coupling block 30 or the second coupling block 40, or an oxide layer disposed on an outer wall of the first coupling block 30 or the second coupling block 40; the second insulating spacer 60 is an insulating sleeve sleeved outside the signal transceiving terminal 12, or an oxide layer disposed on an outer wall of the signal transceiving terminal 12, or an oxide layer disposed on an inner wall of the coupling cavity 41 of the second coupling block 40.

As an alternative, the first insulating spacer 50 and the second insulating spacer 60 each include, but are not limited to, an insulating film, an insulating elastic block. For example, when an insulating film is used, the insulating film is wrapped and sleeved outside the signal transceiving terminal 12 to prevent the signal transceiving terminal 12 from electrically contacting the inner wall of the coupling chamber 41 after being inserted into the coupling chamber 41, so that the operation is convenient, and the thickness of the insulating film is thinner, so that the distance between the signal transceiving terminal 12 and the inner wall of the coupling chamber 41 can be ensured to be shorter, the coupling strength is sufficient, and the product volume is smaller. When the insulating elastic block is adopted, the insulating elastic block is sleeved outside the signal receiving and transmitting end 12, the insulating elastic block can be stably sleeved by elastic force of the insulating elastic block, the insulating elastic block is not easy to loosen and release, and the assembly stability is good.

It should be noted that the first insulating spacer 50 and the second insulating spacer 60 are not limited to using an insulating sleeve or an oxide layer to insulate and isolate the two from each other, and for example, other shapes of insulating spacers may be disposed between the two to insulate and isolate the two from each other.

Referring to fig. 1 to 3, in one embodiment, the antenna unit further includes a reflective plate 70 and a radiation unit 80. The cavity 11 is connected to the reflection plate 70. The radiation unit 80 is disposed on the reflective plate 70, a metal reflective surface is disposed on the surface of the reflective plate 70, and the radiation unit 80 is electrically connected to the metal reflective surface.

Referring to fig. 1 to fig. 3 again, in an embodiment, the phase shifter 10 is disposed on a plate surface of the reflection plate 70 opposite to the radiation unit 80, that is, the phase shifter 10 and the radiation unit 80 are respectively disposed on two opposite plate surfaces of the reflection plate 70. Of course, the phase shifter 10 and the radiation unit 80 may be both disposed on the same side of the reflection plate 70.

It should be noted that the "cavity 11" may be a part of the "reflection plate 70", that is, the "cavity 11" and the "other part of the reflection plate 70" are integrally formed; the "cavity 11" may be made separately and combined with the "other part of the reflection plate 70" into a whole, including but not limited to, being connected by bonding or fastening. Fasteners include, but are not limited to, screws, pins, bolts, rivets, snaps.

Referring to fig. 1 to 3, in one embodiment, a metal reflective surface (not shown) is disposed on a surface of the reflective plate 70 facing the radiation unit 80. The metal reflective surface is specifically, for example, a metal layer. The feeding network is disposed on a side of the reflection plate 70 facing away from the radiation unit 80, and on a side of the reflection plate 70 facing the radiation unit 80. Thus, the feeding network is located on the side of the reflection plate 70 opposite to the radiation unit 80, and thus is not directly electrically contacted and conducted with the metal layer of the reflection plate 70. But may be disposed on a side of the reflection plate 70 facing the radiation unit 80. Specifically, the feeding network may be provided on a surface of the reflector 70 facing away from the radiation unit 80, or may be provided on an insulating substrate provided on a side of the reflector 70 facing away from the radiation unit 80, for example. More specifically, when the antenna element is provided with the phase shifter 10 or the power divider, the insulating substrate is specifically provided inside the phase shifter 10 or the power divider.

Referring to fig. 1 to fig. 3, in an embodiment, the metal reflective surface of the reflective plate 70 and the feeding network are isolated from each other, that is, the metal reflective surface of the reflective plate 70 and the feeding network are not directly electrically connected but in a separated state, so that the defect of physical short circuit can be avoided.

In one embodiment, in order to avoid the bottom end of the feeding element 20 from being electrically connected to the reflection plate 70 during the process of penetrating through the reflection plate 70, an insulating layer is disposed on the wall of the insertion opening 111, or an insulating layer is disposed on the outer wall of the bottom end of the feeding element 20, or the aperture of the insertion opening 111 is made larger than the outer diameter of the bottom end of the feeding element 20, and the bottom end of the feeding element 20 and the wall of the insertion opening 111 are prevented from contacting each other.

In one embodiment, the phase shifter 10 is disposed on a surface of the reflection plate 70 facing away from the radiation unit 80. The cavity 11 and the reflecting plate 70 are of an integral structure, for example, made of an insulating dielectric material, and a metal reflecting surface is provided on the surface facing the radiation unit 80.

As an alternative, the reflective plate 70 may also be a metal plate.

In one embodiment, the radiating element 80 includes a vibrator mount 81 and a radiating arm 82 coupled to the vibrator mount 81. The vibrator seat 81 is provided with a through hole (not shown), the conductive member passes through the through hole to fix the vibrator seat 81 on the reflection plate 70, and the vibrator seat 81 is electrically connected with the reflection plate 70 through the conductive member. Specifically, the conductive member includes, but is not limited to, a metal screw, a metal bolt, a metal screw, a metal pin, a metal rivet, and a metal clip.

In one embodiment, the feeding element 20 and the radiating element 80 can be coupled or directly electrically connected. It should be noted that, the coupling connection between the feeding element 20 and the radiating element 80 means that the feeding element 20 and the radiating element 80 are not in electrical contact, but are provided with a gap, so that energy is transferred between the feeding element 20 and the radiating element 80 by means of mutual coupling, thereby realizing signal transfer.

Further, the radiating arm 82 includes two dipoles orthogonally disposed. Each dipole comprises two radiating plates, i.e. one of the dipoles corresponds to one pair of diagonally arranged two radiating plates and the other dipole corresponds to the other pair of diagonally arranged two radiating plates. The oscillator base 81 includes a connecting portion and four baluns. The bottom ends of the four baluns are all connected with the connecting portion, and the top ends of the four baluns are respectively connected with the four radiation plates in a one-to-one correspondence mode. The feeding member 20 includes two feeding members 20 orthogonally disposed. The two feeding elements 20 are coupled to the two dipoles in a one-to-one correspondence. Thus, the radiation element 80 is a dual polarized radiation element 80. Correspondingly, there are two first coupling blocks 30 and two second coupling blocks 40, and the two feeding members 20, the two first coupling blocks 30, the two second coupling blocks 40 and the two feeding networks are all arranged in a one-to-one correspondence manner.

As an alternative, when the radiation unit 80 is a single-polarized radiation unit 80, the signal transceiving terminal 12, the first coupling block 30, the second coupling block 40, and the feeding element 20 are all one.

Specifically, the feeding member 20 is, for example, a feeding tab or a feeding rod.

Further, the power feeding member 20 includes a first vertical section 21, and the first vertical section 21 is disposed at the periphery of the oscillator base 81. The insertion portion is specifically provided at an end of the first vertical section 21 facing the reflection plate 70, for example.

In some embodiments, the feed 20 further includes a transverse segment 22. One end of the transverse section 22 is connected to the other end of the first vertical section 21. A recess (not shown) is provided on the top of each of the two baluns of one of the dipoles, a transverse section 22 fed in correspondence with the dipole is provided in the recess, and an insulating spacer (not shown) is provided between the transverse section 22 and the inner wall of the recess. Likewise, the top ends of the two baluns of the other dipole are likewise each provided with a recess corresponding to the transverse section 22 of the other feed 20. Thus, the transverse section 22 is disposed in the groove, and is spaced from the corresponding dipoles, so as to couple with the corresponding dipoles and be responsible for transmitting the corresponding polarization direction signals. Furthermore, the transverse section 22 is connected to the inner wall of the recess, for example by means of an insulating partition, enabling the feed 20 to be securely arranged on the oscillator base 81.

It should be noted that the insulating partition is made of an insulating material, such as a plastic, ceramic, rubber, etc., and mainly serves to prevent the first transverse section 22 of the feeding element 20 from being electrically connected to the top end of the balun, and also serves to fix the feeding element 20.

In some embodiments, the power feed 20 further comprises a second vertical section 23. The second vertical section 23 is connected to the other end of the first horizontal section 22, and the second vertical section 23 is disposed at the periphery of the oscillator seat 81, specifically, at an interval with the balun. Like this not arrange second vertical section 23 respectively in the inside trough of balun like in the conventional art to just need not to set up closed balun structure like in the conventional art, but can set up to open balun structure, and then can reduce the structure size of oscillator seat 81 to a certain extent, can make the miniaturization that realizes oscillator seat 81, can reduce the high frequency parasitic radiation of balun simultaneously, effectively promote the gain of high frequency radiation unit 80.

Of course, the feeding element 20 in this embodiment may also be disposed in an internal wiring slot of the balun, as long as the feeding element is in a coupling feeding relationship with the radiating element 80, and the specific arrangement form and the specific shape of the feeding element 20 are not limited, and are set according to actual requirements.

In some embodiments, the radiation plate is a frame, and the frame is specifically a closed frame, or a notch is provided at a position of the frame far away from the balun. The frame body is formed by arranging a hollow area in the middle area of the surface of the radiation plate.

It should be noted that the "radiation arm 82" may be a part of the "oscillator base 81", that is, the "radiation arm 82" and the "other part of the" oscillator base 81 "are integrally formed; the "radiating arm 82" may be manufactured separately from the "other part of the vibrator seat 81" and then be combined with the "other part of the vibrator seat 81" to form a single unit. In one embodiment, the "radiating arm 82" is a part of the "vibrator seat 81" that is integrally formed.

Referring to fig. 1 to fig. 3, in an embodiment, a communication device includes the antenna unit according to any of the embodiments.

In the above communication device, since the bottom end of the feeding element 20 is connected to the first coupling block 30, during the assembling process, the first coupling block 30 is directly inserted into the cavity 11 through the insertion hole 111, and the first coupling block 30 is disposed above the transceiving terminal 12 and coupled to the transceiving terminal 12. Therefore, on one hand, the feeding piece 20 and the signal transceiving terminal 12 do not need to be connected with each other in a welding mode, so that the pollution to the environment caused by electroplating welding in the traditional technology can be avoided, and the cost can be reduced; tin plating is not needed, so that the radiation efficiency is ensured; welding spots are reduced, so that the product performance of the antenna unit is ensured, and the intermodulation index is ensured to be reliable. On the other hand, the power supply element 20 and the first coupling block 30 are directly inserted into the cavity 11 through the insertion opening 111 to couple with the signal transceiving terminal 12, and are assembled together, i.e. the assembly efficiency is high.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Claims (11)

1. An antenna unit, characterized in that the antenna unit comprises:

the phase shifter comprises a cavity and a feed network arranged in the cavity, the cavity is provided with an insertion port, and the feed network is provided with a signal transceiving end;

the feed piece and first coupling block, the bottom of feed piece with first coupling block links to each other, first coupling block can pass the inserted hole inserts in the cavity, first coupling block is located the top of signal receiving and dispatching end and with the coupling of signal receiving and dispatching end links to each other.

2. An antenna element according to claim 1, wherein said feed is integrally formed with said first coupling block by casting, forging, stamping or die casting.

3. The antenna unit of claim 1, further comprising a second coupling block disposed between the transceiving end and the first coupling block, wherein the transceiving end is coupled to the second coupling block, and the first coupling block is disposed above the second coupling block and coupled to the second coupling block.

4. The antenna unit of claim 3, wherein the surface of the first coupling block facing the second coupling block is one or more of a combination of a concave surface, a plane surface, and a convex surface, and the surface of the second coupling block is adapted to the surface of the first coupling block.

5. The antenna unit of claim 4, wherein a surface of the first coupling block facing the second coupling block is an arc-shaped concave surface or an arc-shaped convex surface.

6. The antenna element of claim 5, wherein an arc angle corresponding to said arc-shaped concave surface or said arc-shaped convex surface is defined as a, and a is greater than 180 °.

7. The antenna unit according to claim 3, wherein the second coupling block is provided with a coupling cavity corresponding to the signal transceiving end, and the signal transceiving end is inserted into the coupling cavity.

8. The antenna unit of claim 3, further comprising a first insulative spacer and a second insulative spacer; the first coupling block is connected with the second coupling block through the first insulating isolator, and the second coupling block is connected with the signal transceiving end through the second insulating isolator.

9. The antenna unit of claim 8, wherein the first insulating spacer is an insulating sleeve covering the first coupling block or the second coupling block, or an oxide layer disposed on an outer wall of the first coupling block or the second coupling block; the second insulating isolation piece is an insulating sleeve sleeved outside the signal receiving and transmitting end, or an oxide layer arranged on the outer wall of the signal receiving and transmitting end, or an oxide layer arranged on the inner wall of the coupling cavity of the second coupling block.

10. The antenna unit of claim 1, further comprising a reflector plate and a radiating element; the cavity is connected with the reflecting plate; the radiation unit is arranged on the reflecting plate, a metal reflecting surface is arranged on the surface of the reflecting plate, and the radiation unit is electrically connected with the metal reflecting surface.

11. A communication device, characterized in that it comprises an antenna unit according to any one of claims 1 to 10.

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