An antenna

Abstract

An embodiment of the present invention provides an antenna, which integrates a waveguide structure and a common feeding network to avoid a complex structure. The antenna can be used as a base station antenna or a wifi antenna. The antenna includes: a waveguide radiator, including a lower radiating plate and at least one waveguide structure arranged on the lower radiating plate; an upper radiator, including an upper radiating plate, and at least one opening is arranged on the upper radiating plate, and the opening corresponds to the waveguide structure one by one; a feeding network, connected to each of the waveguide structures; at least a part of the feeding network is arranged between the lower radiating plate and the upper radiating plate, and a gap is respectively arranged between the lower radiating plate and the upper radiating plate. Compared with the related art, the antenna of the embodiment of the present application combines the waveguide structure and the feeding network, so that the antenna structure is simple and easy to process.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an antenna. Background Art

[0002] An antenna is a converter that converts guided waves propagating on a transmission line into electromagnetic waves propagating in free space, or vice versa. It is a component used in radio equipment to transmit or receive electromagnetic waves.

[0003] However, antennas in related technologies, such as microstrip antennas, circuit board antennas, and symmetrical array antennas, have complex structures. After the working frequency of the antenna reaches a certain frequency, it is not easy to process due to its small working wavelength, and the consumables of the circuit board continue to increase. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide an antenna to solve the problem that the antenna structure is complex and inconvenient to process. The specific technical solution is as follows:

[0005] An embodiment of the present application proposes a novel antenna, comprising: a waveguide radiator, comprising a lower radiating plate and at least one waveguide structure arranged on the lower radiating plate; an upper radiator, comprising an upper radiating plate, wherein at least one opening is arranged on the upper radiating plate, and the opening corresponds one-to-one to the waveguide structure; a feeding network, connected to each of the waveguide structures; at least a part of the feeding network is arranged between the lower radiating plate and the upper radiating plate, and gaps are respectively arranged between the lower radiating plate and the upper radiating plate.

[0006] In some embodiments of the present application, each of the waveguide structures is disposed on the lower radiation plate; the upper end of each of the waveguide structures extends out of the lower radiation plate toward the upper radiation plate, and the feeding network is connected to the upper end of each of the waveguide structures.

[0007] In some embodiments of the present application, the waveguide structure has a hollow cavity, and a notch is provided at the upper end of each waveguide structure; the feeding network includes at least a first-level connecting line, and the first-level connecting line includes at least one first end, and the first end extends into the hollow cavity of the waveguide structure through the notch.

[0008] In some embodiments of the present application, the waveguide structure is a cylindrical structure arranged on the lower radiation plate, and the inner cavity of the cylindrical structure constitutes the hollow cavity of the waveguide structure; or, the waveguide radiator includes a waveguide radiation block, the upper surface of the waveguide radiation block constitutes the lower radiation plate, and the waveguide radiation block has a through hole in the thickness direction, and the through hole constitutes the hollow cavity of the waveguide structure.

[0009] In some embodiments of the present application, the feeding network includes a first network part and a second network part, and the first network part and the second network part are respectively located on both sides of the waveguide structure; the number of notches set at the upper end of each waveguide structure is two, one of the notches is used for the first end of the first network part to pass through, and the other notch is used for the first end of the second network part to pass through.

[0010] In some embodiments of the present application, the feed network further includes at least one ground terminal connected to the first-stage connection line. The position of the ground terminal is not limited, and the ground terminal may also be set at other positions of the feed network, or the ground terminal may not be set.

[0011] In some embodiments of the present application, the waveguide structure is a rectangular waveguide, a circular waveguide, or a ridge waveguide.

[0012] In some embodiments of the present application, the upper radiator further includes an auxiliary radiating structure, which is disposed on a side of the upper radiating plate away from the lower radiating plate and is mounted in close contact with the upper radiating plate.

[0013] In some embodiments of the present application, the auxiliary radiation structure includes a bevel structure and / or a radiation ring; the bevel structure extends along the extension direction of the upper radiation plate, and the radiation ring corresponds to the opening position of the upper radiation plate and surrounds the opening.

[0014] In some embodiments of the present application, the number of openings of the upper radiation plate is the same as the number of the waveguide structures, the number of the radiation rings is the same as the number of the openings, the multiple radiation rings and the multiple opening positions correspond one-to-one, and the multiple radiation rings are connected.

[0015] In some embodiments of the present application, the auxiliary radiation structure includes a choke slot or a right-angled edge structure arranged on a side of the upper radiation plate away from the lower radiation plate, and the choke slot or the right-angled edge structure extends along the extension direction of the upper radiation plate.

[0016] In some embodiments of the present application, the waveguide radiator and the upper radiator are made of metal, or are plated with metal.

[0017] In some embodiments of the present application, the feeding network is made of metal material, and the thickness of the metal material is 0.1-2 mm, preferably 0.1 mm or 0.5 mm or 0.8 mm or 1 mm or 1.2 mm or 1.5 mm.

[0018] In some embodiments of the present application, the feeding network adopts a stripline, microstrip, coaxial line or coplanar waveguide structure.

[0019] In some embodiments of the present application, the feeding networks are located in the same plane; or, the feeding networks are at least partially bent, and the feeding networks are located on two planes having an angle.

[0020] In some embodiments of the present application, the feeding network is a series structure or a parallel structure or a hybrid structure including series and parallel structures.

[0021] In some embodiments of the present application, the antenna further comprises a plurality of insulating gaskets, which are respectively arranged between the feed network and the lower radiation plate, and between the feed network and the upper radiation plate. The shape and thickness of the insulating gasket can be based on design requirements, and the insulating gasket can be square, rectangular or clip type.

[0022] The antenna of the embodiment of the present application includes a waveguide radiator, an upper radiator and a feeding network. Among them, the upper radiator includes an upper radiating plate, the upper radiator can receive electromagnetic waves in free space or radiate electromagnetic waves into free space, and the upper radiator can also be used as a pattern control surface to control the angle of the antenna pattern. The waveguide radiator includes a lower radiating plate and a waveguide structure. The waveguide radiator can not only directional guide electromagnetic waves to reduce energy loss, but also can be used as a radiation unit to receive electromagnetic waves in free space or radiate electromagnetic waves into free space. At least a part of the feeding network is arranged between the upper radiating plate and the lower radiating plate, and a gap is respectively arranged between the upper radiating plate and the lower radiating plate, that is, the feeding network is suspended between the upper radiating plate and the lower radiating plate. The feeding network is connected to the waveguide structure, so that the feeding network can transmit electromagnetic waves between the waveguide radiator and the antenna interface. Compared with the related art, the antenna of the embodiment of the present application combines the waveguide structure and the feeding network, the waveguide radiator and the upper radiator have simple structures, and the arrangement of the feeding network is simple, so that the structure of the antenna is simple and convenient for processing.

[0023] Of course, it is not necessary to achieve all of the advantages described above at the same time to implement any product or method of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of an exploded view of the antenna of Embodiment 1 of the present application;

[0026] Figure 2 This is a schematic diagram of the structure of the antenna according to the second embodiment of the present application;

[0027] Figure 3a This is a schematic diagram of the structure of the antenna of Embodiment 3 of the present application;

[0028] Figure 3b for Figure 3a A schematic diagram of the split antenna shown;

[0029] Figure 4 This is a schematic diagram of the structure of the antenna according to the fourth embodiment of the present application;

[0030] Figure 5 The structure of the antenna of the fifth embodiment of the present application is shown in FIG. Figure 1 ;

[0031] Figure 6 The structure of the antenna of the fifth embodiment of the present application is shown in FIG. Figure 2 (Upper radiator is not shown);

[0032] Figure 7 This is a schematic diagram of the structure of the antenna according to the sixth embodiment of the present application;

[0033] In the figure: antenna 10; waveguide radiator 100; waveguide radiation block 101; lower radiation plate 110; waveguide structure 120; upper end 121; notch 122; hollow cavity 123; extension plate 130; upper radiator 200; upper radiation plate 210; opening 211; auxiliary radiation structure 220; bevel structure 221; inclined surface 222; radiation ring 223; choke slot 224; feeding network 300; first end 301; second end 302; first network part 310; second network part 320; first-level connecting line 330; second-level connecting line 340; third-level connecting line 350; grounding terminal 360; insulating gasket 400; screw 500. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field based on this application belong to the scope of protection of the present invention.

[0035] As mentioned in the background art, antennas in related technologies, such as microstrip antennas, circuit board antennas, and symmetrical array antennas, have complex structures. After the working frequency of the antenna reaches a certain frequency, it is not easy to process due to its small working wavelength.

[0036] In view of this, if Figure 1As shown, the first embodiment of the present application proposes an antenna 10, including a waveguide radiator 100, an upper radiator 200 and a feeding network 300. The waveguide radiator 100 includes a lower radiating plate 110 and at least one waveguide structure 120 arranged on the lower radiating plate 110. The upper radiator 200 includes an upper radiating plate 210, and at least one opening 211 is arranged on the upper radiating plate 210, and the opening 211 corresponds to the waveguide structure 120 one by one. The feeding network 300 is arranged between the lower radiating plate 110 and the upper radiating plate 210, and gaps are respectively arranged between the lower radiating plate 110 and the upper radiating plate 210, and the feeding network 300 is connected to each waveguide structure 120.

[0037] The antenna 10 of the embodiment of the present application includes a waveguide radiator 100, an upper radiator 200 and a feeding network 300. The upper radiator 200 includes an upper radiating plate 210. The upper radiator 200 can receive electromagnetic waves in free space or radiate electromagnetic waves into free space. The upper radiator 200 can also be used as a pattern control surface to control the angle of the antenna 10 pattern. The waveguide radiator 100 includes a lower radiating plate 110 and a waveguide structure 120. The waveguide radiator 100 can not only directional guide electromagnetic waves to reduce energy loss, but also can be used as a radiation unit to receive electromagnetic waves in free space or radiate electromagnetic waves into free space. At least a part of the feeding network 300 is arranged between the upper radiating plate 210 and the lower radiating plate 110, and gaps are respectively arranged between the upper radiating plate 210 and the lower radiating plate 110, that is, the feeding network 300 is suspended between the upper radiating plate 210 and the lower radiating plate 110. The feed network 300 is connected to the waveguide structure 120, so that the feed network 300 can transmit electromagnetic waves between the waveguide radiator 100 and the interface of the antenna 10. Compared with the related art, the antenna 10 of the embodiment of the present application combines the waveguide structure 120 and the feed network 300, the waveguide radiator 100 and the upper radiator 200 have simple structures, and the arrangement of the feed network 300 is simple, so that the structure of the antenna 10 is simple and convenient to process.

[0038] The antenna 10 of the embodiment of the present application can be used as a transmitting antenna, a receiving antenna, or an antenna having both transmitting and receiving functions. Specifically, when the antenna 10 of the embodiment of the present application is used as a transmitting antenna, the electromagnetic wave is transmitted to the feeding network 300 via the antenna interface, and then transmitted to the waveguide structure 120 via the feeding network 300, and then directly radiated to the free space via the waveguide structure 120, or, it is transmitted to the upper radiator 200 through the waveguide structure 120, and radiated to the free space by the upper radiator 200 to complete the electromagnetic wave transmission. When the antenna 10 of the embodiment of the present application is used as a receiving antenna, the upper radiator 200 receives the electromagnetic wave in the free space and transmits it to the waveguide structure 120. The waveguide structure 120 can also directly receive the electromagnetic wave in the free space. The electromagnetic wave is transmitted to the feeding network 300 through the waveguide structure 120, and finally output through the antenna interface.

[0039] The antenna 10 of the embodiment of the present application can be used as a base station antenna and a wifi antenna. Specifically, the antenna 10 can be used as a wifi6 and wifi6e antenna, and the operating frequency of the antenna 10 can be greater than 5.5-7.2 GHz. The antenna 10 can also be applied to 4G and 5G mobile communications, that is, the fourth generation mobile communication technology and the fifth generation mobile communication technology.

[0040] like Figure 1 As shown, in the first embodiment, a plurality of waveguide structures 120 are provided, each waveguide structure 120 is arranged on the lower radiation plate 110 and arranged along the extension direction of the lower radiation plate 110, and each waveguide structure 120 can be considered as an antenna unit. The upper end 121 of each waveguide structure 120 extends out of the lower radiation plate 110 in the direction of the upper radiation plate 210. Figure 1 As shown, the feed network 300 is connected to the upper end 121 of each waveguide structure 120. Thus, the connection between the feed network 300 and the waveguide structure 120 is simple.

[0041] like Figure 1 As shown, each waveguide structure 120 has a hollow cavity 123. Specifically, in the first embodiment, the waveguide structure 120 may be a plurality of cylindrical structures arranged on the lower radiation plate 110, and the inner cavity of the cylindrical structure constitutes the hollow cavity 123 of the waveguide structure 120. The waveguide structure 120 may be a circular waveguide, which is a regular metal waveguide with a circular cross section and filled with air medium.

[0042] The upper end 121 of the waveguide structure 120 is provided with a notch 122. The feed network 300 is a parallel structure, and the feed network 300 is provided with multiple connecting lines, each of which may include multiple first ends 301 and one second end 302. Each connecting line may divide or merge electromagnetic waves, and the multiple connecting lines constitute a waveguide power divider. Figure 1As shown, multiple first ends 301 of the first-level connecting wires 330 extend into the hollow cavities 123 of multiple adjacent waveguide structures 120 through the gaps 122, and the first ends 301 of the remaining levels of connecting wires are respectively connected to the second ends 302 of the previous level of connecting wires, and the second end 302 of the last level of connecting wires is connected to the antenna interface.

[0043] It can be understood that the number of connecting lines is related to the number of waveguide structures 120 and the number of first ends 301 of each connecting line. Figure 1 As shown, in the first embodiment, eight waveguide structures 120 are provided, and the connecting wires are provided in three levels, and each level of connecting wires includes two first ends 301 and one second end 302, wherein the two first ends 301 of the first level connecting wire 330 extend into the hollow cavities 123 of two adjacent waveguide structures 120 through the notch 122 respectively, the second end 302 of the first level connecting wire 330 is connected to the first end 301 of the second level connecting wire 340, the second end 302 of the second level connecting wire 340 is connected to the first end 301 of the third level connecting wire 350, and the second end 302 of the third level connecting wire 350 is connected to the antenna interface. The antenna interface can be an N-type connector, an SMA connector, etc., and the type of connector does not affect the performance of the antenna 10.

[0044] In the embodiment of the present application, there is no restriction on the shape of the first end 301 of the first-level connecting line 330, as long as the thickness and length meet the requirements.

[0045] In other embodiments of the present application, the number of waveguide structures 120 may be more or less, and accordingly, the number of levels of connecting lines may also be more or less, which is not limited in the present application.

[0046] In other embodiments of the present application, the feeding network 300 may be a series structure or a hybrid structure including series and parallel connections, which is not limited in the present application.

[0047] like Figure 1 As shown, in the first embodiment, the feed network 300 includes a first network part 310 and a second network part 320, the first network part 310 and the second network part 320 are relatively independent, and the first network part 310 and the second network part 320 are respectively located on both sides of the waveguide structure 120. The number of notches 122 set at the upper end 121 of each waveguide structure 120 is two, one of which is used for the first end 301 of the first network part 310 to pass through, and the other is used for the first end 301 of the second network part 320 to pass through. In the embodiment of the present application, the first network part 310 and the second network part 320 correspond to two polarizations respectively, and the two polarizations share one waveguide structure 120, which is conducive to simplifying the structure of the antenna 10.

[0048] In the embodiment of the present application, the first network unit 310 and the second network unit 320 have the same structure. In other embodiments of the present application, the structures of the first network unit 310 and the second network unit 320 may also be completely different. The present application does not limit this.

[0049] In the second embodiment, Figure 2 As shown, in Figure 1 On the basis of the first embodiment shown, the feed network 300 also includes a ground terminal 360, and the ground terminal 360 can be connected to the first-level connecting line 330. By setting the ground terminal 360, the danger of lightning can be avoided and the safety of the antenna 10 can be improved. In the embodiment of the present application, the position of the ground terminal 360 is not restricted, and the ground terminal 360 can also be set at other positions of the feed network 300, and the present application does not limit this. In addition, in other embodiments of the present application, according to the use environment of the antenna 10, the feed network 300 can be provided with multiple ground terminals 360, for example, a ground terminal 360 is set for each waveguide structure 120, or the ground terminal 360 may not be set.

[0050] like Figure 1 As shown, in the first embodiment, the feeding network 300 adopts a stripline structure. The stripline is a transmission line composed of two grounded metal strips and a rectangular cross-section conductor strip with a width ω and a thickness t in the middle, that is, a transmission line between two parallel ground planes or power planes. The stripline has the advantages of small size, light weight, wide bandwidth, simple process, low cost, etc.

[0051] In the embodiment of the present application, the feed network 300 is made of metal, and the thickness of the metal is 0.1-2 mm. Preferably, the thickness of the metal can be 0.1 mm, 0.5 mm, 0.8 mm, 1 mm, 1.2 mm, or 1.5 mm.

[0052] like Figure 1 As shown, in the first embodiment, the feed network 300 is located on the same plane parallel to the lower radiation plate 110. The antenna 10 further includes a plurality of insulating gaskets 400, which are respectively arranged between the feed network 300 and the lower radiation plate 110 and between the feed network 300 and the upper radiation plate 210. Thus, the feed network 300 can be suspended between the upper radiation plate 210 and the lower radiation plate 110.

[0053] Furthermore, the insulating gasket 400 may be a plastic gasket, that is, the material of the insulating gasket 400 is plastic.

[0054] In the embodiment of the present application, the shape and thickness of the insulating gasket 400 are based on design requirements, and the insulating gasket 400 can be square, rectangular or clip type.

[0055] like Figure 1 As shown, in the first embodiment, the number of openings 211 of the upper radiation plate 210 is the same as the number of waveguide structures 120, and corresponds to the positions of the waveguide structures 120. Since the waveguide structure 120 is a circular waveguide, the openings 211 of the upper radiation plate 210 are circular accordingly.

[0056] It should be noted that in the embodiments of the present application, Figure 1 As shown, the size of the upper radiation board 210 can be larger to cover the entire feeding network 300; in other embodiments of the present application, such as Figure 2 In the second embodiment shown, the size of the upper radiation plate 210 is relatively small, and the upper radiation plate 210 can only cover a portion of the feed network 300. This application does not impose any limitation on this, as long as the upper radiation plate 210 meets the size requirement of the opening 211.

[0057] In the embodiment of the present application, the waveguide radiator 100 and the upper radiator 200 are made of metal, such as aluminum, copper or iron. Alternatively, the waveguide radiator 100 and the upper radiator 200 are plated with metal, such as gold, silver or copper. In a specific embodiment, the waveguide radiator 100 and the upper radiator 200 are made of plastic, and the plastic surface is plated with copper. The present application does not make any specific restrictions on this, as long as the waveguide radiator 100 and the upper radiator 200 can have conductive properties.

[0058] like Figure 3a and Figure 3b As shown, in the third embodiment of the present application, different from the first embodiment, the waveguide radiator 100 includes a waveguide radiation block 101, the upper surface of the waveguide radiation block 101 constitutes a lower radiation plate 110, the waveguide radiation block 101 has a through hole in the thickness direction, and the through hole constitutes a hollow cavity 123 of the waveguide structure 120. The waveguide radiation block 101 can be considered as a block structure composed of a waveguide radiation material.

[0059] In addition, in the third embodiment, the upper radiator 200 further includes an auxiliary radiating structure 220 . The auxiliary radiating structure 220 is disposed on a side of the upper radiating plate 210 away from the lower radiating plate 110 , and is mounted in close contact with the upper radiating plate 210 .

[0060] Specifically, the auxiliary radiation structure 220 includes a bevel structure 221. Two bevel structures 221 are provided, and the two bevel structures 221 are respectively located at the two side edges of the upper radiation board 210 and extend along the extension direction of the upper radiation board 210. The facing surfaces of the two bevel structures 221 are inclined surfaces 222. By adjusting the height of the bevel structure 221 and the inclination angle of the inclined surface 222, the 3dB lobe width or 6dB lobe width of the antenna pattern can be changed.

[0061] like Figure 3a and Figure 3b As shown, the auxiliary radiation structure 220 also includes radiation rings 223, the number of which is the same as the number of openings 211, and the multiple radiation rings 223 correspond to the multiple openings 211 of the upper radiation plate 210 one by one and surround each opening 211 respectively, and the multiple radiation rings 223 are connected to each other, and the connection can be fixed to the upper radiation plate 210 by screws 500. The waveguide structures 120 are also connected to each other, and screw holes are provided at the connection, so that the upper radiation plate 210 can be connected to the waveguide radiation block 101 by screws 500. The edge of the lower radiation plate 110 is connected to the extension plate 130, and the upper radiation plate 210 and the extension plate 130 are connected by screws 500.

[0062] In the third embodiment, the plurality of radiation rings 223 are an integrated structure.

[0063] In other embodiments of the present application, the multiple radiation rings 223 may also be split structures, and the multiple radiation rings 223 are connected by connecting pieces.

[0064] In other embodiments of the present application, the auxiliary radiation structure 220 may include only the hypotenuse structure 221 or only the radiation ring 223 .

[0065] It should be noted that Figure 3a and Figure 3b The antenna shown can be used as a wide-band dual-polarization base station antenna.

[0066] like Figure 4 As shown, in the fourth embodiment of the present application, unlike the third embodiment, the auxiliary radiation structure 220 does not include the bevel structure 221, and the auxiliary radiation structure 220 includes a choke slot 224 arranged on the side of the upper radiation board 210 away from the lower radiation board 110, and a plurality of choke slots 224 are arranged in parallel and symmetrically about the waveguide structure 120, and the choke slots 224 extend along the extension direction of the upper radiation board 210. The more the number of choke slots 224, the better the front-to-back ratio of the radiation pattern of the antenna 10.

[0067] In other embodiments of the present application, the auxiliary radiation structure 220 may include a right-angled side structure, which is disposed on a side of the upper radiation board 210 away from the lower radiation board 110, and the right-angled side structure is located at the edge of the upper radiation board 210 and extends along the extension direction of the upper radiation board 210. Alternatively, the auxiliary radiation structure 220 may also include other structures, which are not limited in the present application.

[0068] like Figure 5 and Figure 6As shown, in the fifth embodiment of the present application, unlike the first embodiment, the waveguide structure 120 is not a circular waveguide but a rectangular waveguide, which is a regular metal waveguide with a rectangular cross section and filled with air medium. The general properties of the rectangular waveguide are similar to those of the circular waveguide.

[0069] In the fifth embodiment, the opening 211 of the upper radiation plate 210 is also rectangular, and the upper end 121 of the waveguide structure 120 passes through the opening 211 of the upper radiation plate 210 upwards.

[0070] In other embodiments of the present application, the upper ends 121 of the waveguide structures 120 may be connected via a connecting plate, thereby improving the installation stability of the waveguide structure 120 .

[0071] In other embodiments of the present application, the waveguide structure 120 may be other heterogeneous structures, for example, the waveguide structure 120 may be a ridge waveguide. The ridge waveguide can be regarded as a rectangular waveguide with a wide wall bent, and its bandwidth is wider than that of a rectangular waveguide.

[0072] In addition, if Figure 6 As shown, the feed network 300 is not a stripline structure but a microstrip structure. A microstrip structure is also called a microstrip line. A microstrip line is a microwave transmission line composed of a single conductor strip supported on a dielectric substrate. It has the advantages of small size, light weight, wide frequency band, high reliability and low manufacturing cost.

[0073] In other embodiments of the present application, the feed network 300 may be a coaxial line structure, which is a guide system composed of two coaxial cylindrical conductors, and a wide-band microwave transmission line with air or high-frequency dielectric filled between the inner and outer conductors. Alternatively, the feed network 300 may be a coplanar waveguide structure, specifically, a central conductor strip is made on one surface of a dielectric substrate, and conductor planes are made on both sides of the central conductor strip, thus forming a coplanar waveguide, also called a coplanar microstrip transmission line. The present application does not limit this.

[0074] like Figure 7 As shown, in the sixth embodiment of the present application, different from the first embodiment, the feeding network 300 only includes the first network part 310, but does not include the second network part 320. In addition, the first network part 310 is not located on the same plane, but on two planes with an angle.

[0075] Specifically, an edge of one side of the lower radiation plate 110 where the first network portion 310 is disposed may be bent in a direction away from the upper radiation plate 210 , and a portion of the first network portion 310 is also bent in a direction away from the upper radiation plate 210 .

[0076] In other embodiments of the present application, the bending direction of the feeding network 300 may be different, and the setting position of the feeding network 300 may also be different. The present application does not limit the structure and the upper and lower positions of the feeding network 300, as long as the feeding network 300 can be connected to the waveguide structure 120.

[0077] It should be noted that the antenna 10 of the sixth embodiment of the present application can be used as a single-polarized antenna. Of course, the antenna 10 can also be made into a dual-polarized antenna by setting the second network portion 320 on the other side of the waveguide structure 120. The structure of the second network portion 320 can be exactly the same as that of the first network portion 310 and can be symmetrically arranged. Accordingly, the edge of one side of the lower radiation plate 110 provided with the second network portion 320 can be bent in a direction away from the upper radiation plate 210, and a part of the second network portion 320 can also be bent in a direction away from the upper radiation plate 210, and the present application does not limit this.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.

[0079] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0080] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. An antenna, characterized in that: include: A waveguide radiator (100) comprises a lower radiation plate (110) and at least one waveguide structure (120) arranged on the lower radiation plate (110); An upper radiator (200) comprises an upper radiating plate (210), wherein the upper radiating plate (210) is provided with at least one opening (211), and the opening (211) corresponds one-to-one to the waveguide structure (120); A feeding network (300) connected to each of the waveguide structures (120); at least a portion of the feeding network (300) is disposed between the lower radiation plate (110) and the upper radiation plate (210), and gaps are provided between the lower radiation plate (110) and the upper radiation plate (210); Each of the waveguide structures (120) is disposed on the lower radiation plate (110); an upper end (121) of each of the waveguide structures (120) extends out of the lower radiation plate (110) in the direction of the upper radiation plate (210), and the feeding network (300) is connected to the upper end (121) of each of the waveguide structures (120).

2. The antenna according to claim 1, characterized in that The waveguide structure (120) has a hollow cavity (123), and the upper end (121) of each waveguide structure (120) is provided with a notch (122); the feeding network (300) comprises at least a first-level connecting line (330), and the first-level connecting line (330) comprises at least one first end (301), and the first end (301) extends into the hollow cavity (123) of the waveguide structure (120) through the notch (122).

3. The antenna according to claim 2, characterized in that: The waveguide structure (120) is a cylindrical structure arranged on the lower radiation plate (110), and the inner cavity of the cylindrical structure constitutes a hollow cavity (123) of the waveguide structure (120); Alternatively, the waveguide radiator (100) comprises a waveguide radiation block (101), the upper surface of the waveguide radiation block (101) constitutes the lower radiation plate (110), and the waveguide radiation block (101) has a through hole in the thickness direction, and the through hole constitutes the hollow cavity (123) of the waveguide structure (120).

4. The antenna according to claim 2, characterized in that: The feeding network (300) comprises a first network portion (310) and a second network portion (320), wherein the first network portion (310) and the second network portion (320) are respectively located on two sides of the waveguide structure (120); two notches (122) are arranged at the upper end (121) of each waveguide structure (120), wherein one of the notches (122) is used for allowing the first end (301) of the first network portion (310) to pass through, and the other notch (122) is used for allowing the first end (301) of the second network portion (320) to pass through.

5. The antenna according to claim 2, characterized in that: The feed network (300) also includes at least one ground terminal (360) connected to the first-stage connection line (330).

6. The antenna according to any one of claims 1 to 3, characterized in that: The waveguide structure (120) is a rectangular waveguide, a circular waveguide or a ridge waveguide.

7. The antenna according to claim 1, characterized in that: The upper radiator (200) further comprises an auxiliary radiating structure (220), wherein the auxiliary radiating structure (220) is arranged on a side of the upper radiating plate (210) away from the lower radiating plate (110) and is mounted in close contact with the upper radiating plate (210).

8. The antenna according to claim 7, characterized in that: The auxiliary radiation structure (220) comprises a bevel structure (221) and / or a radiation ring (223); the bevel structure (221) extends along the extension direction of the upper radiation plate (210), and the radiation ring (223) corresponds to the position of the opening (211) of the upper radiation plate (210) and surrounds the opening (211).

9. The antenna according to claim 8, characterized in that The number of openings (211) of the upper radiation plate (210) is the same as the number of the waveguide structure (120), the number of the radiation rings (223) is the same as the number of the openings (211), the positions of the multiple radiation rings (223) and the multiple openings (211) correspond one to one, and the multiple radiation rings (223) are connected.

10. The antenna according to claim 7, characterized in that: The auxiliary radiation structure (220) comprises a choke slot (224) or a right-angled edge structure arranged on a side of the upper radiation plate (210) away from the lower radiation plate (110), and the choke slot (224) or the right-angled edge structure extends along the extension direction of the upper radiation plate (210).

11. The antenna according to claim 1, characterized in that: The waveguide radiator (100) and the upper radiator (200) are made of metal, or have surfaces plated with metal.

12. The antenna according to claim 1, characterized in that The feeding network (300) is made of metal material, and the thickness of the metal material is 0.1-2 mm.

13. The antenna according to claim 1, characterized in that The feeding network (300) is made of metal material, and the thickness of the metal material is 0.1 mm, 0.5 mm, 0.8 mm, 1 mm, 1.2 mm or 1.5 mm.

14. The antenna according to claim 1, characterized in that The feeding network (300) adopts a stripline, microstrip, coaxial line or coplanar waveguide structure.

15. The antenna according to claim 1, characterized in that The feeding network (300) is located on the same plane; or, the feeding network (300) is at least partially bent, and the feeding network (300) is located on two planes having an angle.

16. The antenna according to claim 1, characterized in that The feeding network (300) is a series structure or a parallel structure or a mixed structure including series and parallel structures.

17. The antenna according to claim 1, characterized in that It also includes a plurality of insulating gaskets, which are respectively arranged between the feed network (300) and the lower radiation plate (110), and between the feed network (300) and the upper radiation plate (210).

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