Antenna device and communication device

Abstract

The invention provides an antenna device and a communication device, and belongs to the technical field of communication, the antenna device comprises a plurality of antenna units, each antenna unit comprises a feed structure, and the feed structures are used for feeding electric signals into the antenna units; the decoupling layer comprises at least one slot pattern, and the orthographic projection of the feed structure on the decoupling layer is not overlapped with the slot pattern; wherein part or all of the gap pattern is located between the orthographic projections of the adjacent feed structures on the decoupling layer, and / or is located between the orthographic projections of the feed structures on the decoupling layer and the edge of the decoupling layer.

Description

Technical Field

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

[0002] Antennas are essential devices in communication technology. With the development of antenna technology, array antennas have emerged. Array antennas are generally composed of multiple antenna units, each of which is designed with a feeding structure for feeding electrical signals.

[0003] Among them, the array antenna composed of multiple antenna units needs to ensure the antenna bandwidth and efficiency to improve the signal quality. Summary of the invention

[0004] Based on the content of the background technology, the present disclosure proposes an antenna device and a communication device.

[0005] An antenna device includes:

[0006] A plurality of antenna units, each of the antenna units comprising a feeding structure, the feeding structure being used to feed an electrical signal into the antenna unit;

[0007] A decoupling layer, wherein the decoupling layer comprises at least one slot pattern, and the orthographic projection of the feeding structure on the decoupling layer has no overlap with the slot pattern;

[0008] Part or all of the slit pattern is located between the orthographic projections of adjacent feeding structures on the decoupling layer, and / or between the orthographic projection of the feeding structure on the decoupling layer and the edge of the decoupling layer.

[0009] Exemplarily, the antenna device further includes:

[0010] A liquid crystal box, wherein a liquid crystal is arranged in the liquid crystal box, and a plurality of the antenna units are formed on one side of the liquid crystal;

[0011] Wherein, the decoupling layer is formed on the same side of the liquid crystal box, or the decoupling layers are formed on different sides of the liquid crystal box.

[0012] Exemplarily, the liquid crystal box includes a first substrate and a second substrate, and the liquid crystal is located between the first substrate and the second substrate;

[0013] Wherein, the antenna unit comprises:

[0014] A feeding layer is arranged on one side of the second substrate, and the feeding structure is arranged in the feeding layer;

[0015] An antenna layer, arranged on a side of the feed layer away from the liquid crystal box;

[0016] Wherein, the decoupling layer comprises:

[0017] a first decoupling layer provided on the same layer as the feed layer; and / or,

[0018] a second decoupling layer provided at the same layer as the antenna layer; and / or,

[0019] A third decoupling layer is arranged at a different layer from the feed layer and the antenna layer.

[0020] Exemplarily, the antenna unit comprises a plurality of the feed layers, the plurality of the feed layers are stacked, and the orthographic projections of the feed structures in adjacent stacked feed layers on the decoupling layer overlap;

[0021] The slot pattern has no overlap with the orthographic projections of the multiple feeding structures of the antenna unit on the decoupling layer, and surrounds the orthographic projections of the multiple feeding structures on the decoupling layer.

[0022] Exemplarily, a size of the slit pattern in a normal direction of the decoupling layer is 10 μm to 50 μm.

[0023] Exemplarily, the slit width of the slit pattern is 0.05 mm to 0.5 mm.

[0024] Exemplarily, it comprises a plurality of the decoupling layers, and the plurality of the decoupling layers are arranged in different layers;

[0025] The slit patterns of the plurality of decoupling layers are different in pattern shape and / or slit size, and the slit size includes at least one of a slit width, a slit length, and a size of the slit in a normal direction of the decoupling layer.

[0026] Exemplarily, the decoupling layer includes a metal material layer, and the at least one slit pattern divides the metal material layer into a plurality of metal material regions;

[0027] The orthographic projection of the feeding structure on the decoupling layer is located within the metal material area; or the metal material area is located outside the orthographic projection of the feeding structure on the decoupling layer.

[0028] Exemplarily, the slit pattern comprises a bending slit, wherein the bending slit has at least one bending region;

[0029] The at least one bending zone includes a bending zone located between the gaps between the orthographic projections of two adjacent feeding structures on the decoupling layer, and / or a bending zone located between the orthographic projection of the feeding structure on the decoupling layer and an edge of the decoupling layer.

[0030] Exemplarily, the bending gap includes a straight gap and a bending area connecting the straight gap;

[0031] Wherein, the linear gap is located between the orthographic projections of the feeding structures adjacent in the first direction on the decoupling layer; the bending area is located between the orthographic projections of the feeding structures adjacent in the second direction on the decoupling layer;

[0032] The first direction and the second direction are the same or different.

[0033] Exemplarily, the first direction and the second direction are different, and there is at least a pair of first feeding structures and second feeding structures adjacent to each other in the second direction;

[0034] Wherein, the first feeding structure and the second feeding structure have a plurality of bending regions between their orthographic projections on the decoupling layer.

[0035] Exemplarily, the slit pattern further includes:

[0036] A first hollow gap is connected to two adjacent bending areas and is located between the orthographic projections of adjacent feeding structures in the first direction on the decoupling layer;

[0037] The first hollow gap is spaced apart from the straight gap and has no overlap with the orthographic projection of the feeding structure on the decoupling layer.

[0038] Exemplarily, the first direction is different from the second direction, and the bending area and the straight line gap are transitioned through a second hollow gap; wherein the angle between the second hollow gap and the straight line gap is greater than 90 degrees.

[0039] Exemplarily, the slit pattern further includes at least one third hollow slit, wherein the third hollow slit is located between orthographic projections of adjacent feeding structures in the third direction on the decoupling layer.

[0040] The third direction is different from the first direction.

[0041] Exemplarily, a plurality of the slit patterns are included, the plurality of the slit patterns include at least one pair of adjacent first slit patterns and second slit patterns, and the third hollow slit on the first slit pattern is connected to the third hollow slit on the second slit pattern.

[0042] Exemplarily, the decoupling layer includes a plurality of the slit patterns, and the plurality of the slit patterns include at least one pair of adjacent first slit patterns and second slit patterns;

[0043] Wherein, an orthographic projection of at least one of the feeding structures on the decoupling layer is located in a region defined by the first slit pattern and the second slit pattern.

[0044] Exemplarily, the first slit pattern and the second slit pattern are axisymmetric.

[0045] Exemplarily, the slot pattern includes a plurality of closed slots, and one of the closed slots encloses an orthographic projection of the feeding structure on the decoupling layer.

[0046] Exemplarily, the orthographic projection of the bending area on the target plane includes at least one of a cross shape, an arc shape, a triangle shape, and a wave shape.

[0047] A communication device is also provided, comprising the antenna device.

[0048] The antenna provided by the present disclosure includes a plurality of antenna units, wherein each antenna unit may include a feed structure, the feed structure being used to feed an electrical signal into the antenna unit; and further includes a decoupling layer, the decoupling layer including at least one slot pattern, the slot pattern having no overlap with the orthographic projection of the feed structure on the decoupling layer; and part or all of the slot pattern is located between the orthographic projections of adjacent feed structures on the decoupling layer. Since part or all of the slot pattern is located between the orthographic projections of adjacent feed structures on the decoupling layer, the electrical signals generated by the adjacent feed structures will be hindered by the slots, that is, the slot pattern can prevent the transmission of current at this position, thereby avoiding the crosstalk of the current signals generated by the adjacent feed structures, thereby avoiding the crosstalk and mutual coupling problems of each antenna unit, thereby ensuring the bandwidth and efficiency of the antenna.

[0049] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the proportions in the drawings are only for illustration and do not represent the actual proportions.

[0051] Figure 1a and Figure 1b A schematic top view of a first antenna device according to an embodiment of the present disclosure is shown;

[0052] Figure 2 Shows Figure 1b A cross-sectional schematic diagram of an antenna device;

[0053] Figure 3a-Figure 3b As shown, several top plan schematic diagrams of the second antenna device are shown;

[0054] Figure 4a A schematic top view of a third antenna device according to an embodiment of the present disclosure is shown;

[0055] Figure 4b A schematic top view of a fourth antenna device according to an embodiment of the present disclosure is shown;

[0056] Figure 4c A schematic top view of a fifth antenna device according to an embodiment of the present disclosure is shown;

[0057] Figure 4d A schematic top view of a sixth antenna device according to an embodiment of the present disclosure is shown;

[0058] Figure 5a A schematic top view of an antenna device with a third hollowed-out gap in an embodiment of the present disclosure is shown;

[0059] Figure 5b A schematic top view of another antenna device with a third hollow gap in an embodiment of the present disclosure is shown;

[0060] Figure 5c A schematic top view of another antenna device with a third hollow slot in an embodiment of the present disclosure is shown;

[0061] Figure 5d A schematic top view of another antenna device with a third hollow slot in an embodiment of the present disclosure is shown;

[0062] Figure 5e A schematic top view of a third hollowed-out slot antenna device according to an embodiment of the present disclosure is shown;

[0063] Figure 6a A schematic top view of a seventh antenna device according to an embodiment of the present disclosure is shown;

[0064] Figure 6b A schematic top view of an eighth antenna device according to an embodiment of the present disclosure is shown;

[0065] Figure 7a A schematic top plan view of an antenna device with a closed gap in an embodiment of the present disclosure is shown;

[0066] Figure 7bA schematic top view of another antenna device with a closed gap in an embodiment of the present disclosure is shown;

[0067] Figure 7c A schematic top view of a ninth antenna device according to an embodiment of the present disclosure is shown;

[0068] Figure 8 A schematic cross-sectional structure diagram of a tenth antenna device in an embodiment of the present disclosure is shown;

[0069] Figure 9a-9d Schematic cross-sections of four other antenna devices in the embodiment of the present disclosure are shown respectively;

[0070] Description of reference numerals:

[0071] 100, decoupling layer; 200, feeding structure; 300, gap pattern; 301, straight gap; 302, bending area; 303, first hollow gap; 304, second hollow gap; 305, third hollow gap; 31, first gap pattern; 32, second gap pattern; 201, feeding layer; 400, liquid crystal box; 401, second substrate; 402, first substrate; 403, lower metal layer; 404, liquid crystal; 500, antenna layer; 600, dielectric layer; 501, radiation structure; 101, first decoupling layer; 102, second decoupling layer; 103, third decoupling layer. DETAILED DESCRIPTION

[0072] In order to make the above-mentioned purposes, features and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0073] In the related art, the crosstalk and mutual coupling problem between antenna units of the array antenna affects the communication quality. Therefore, when designing the array antenna, it is necessary to avoid the crosstalk and mutual coupling between the feeding structures of the antenna units. Taking the liquid crystal antenna as an example, a plurality of liquid crystal antennas constitute a liquid crystal antenna array. For this type of antenna, if the crosstalk and mutual coupling between the liquid crystal antennas are to be avoided, the general method is to punch holes on the glass substrate of the liquid crystal antenna. However, the punching process of the glass substrate is not yet mature, so there is a lack of effective means to suppress the crosstalk and mutual coupling.

[0074] In view of this, the present disclosure proposes an antenna device, including multiple antenna units and a decoupling layer, and the purpose of suppressing crosstalk and mutual coupling between antenna units is achieved through a slot pattern in the decoupling layer.

[0075] Reference Figure 1a , Figure 1b and Figure 2 As shown, Figure 1a and Figure 1b shows a schematic top view of a first antenna device, Figure 2 A cross-sectional schematic diagram of a first antenna device is shown, wherein the antenna may specifically include the following structure:

[0076] A plurality of antenna units, each antenna unit comprising a feeding structure 200, the feeding structure 200 being used to feed an electrical signal into the antenna unit;

[0077] A decoupling layer 100, wherein the decoupling layer 100 comprises at least one slit pattern 300, and the slit pattern 300 has no overlap with an orthographic projection of the feeding structure 200 on the decoupling layer 100;

[0078] Part or all of the slit pattern 300 is located between the orthographic projections of adjacent feeding structures 200 on the decoupling layer 100 and / or between the orthographic projection of the feeding structure on the decoupling layer and the edge of the decoupling layer.

[0079] In this embodiment, the plurality of antenna units may be arranged in an array on a target plane, or may not be arranged in an array. The target plane may be a horizontal plane, or may be any plane in space.

[0080] The antenna unit may be a liquid crystal antenna unit, or other types of antenna units, such as a microstrip antenna.

[0081] Each antenna unit may include a feeding structure, which may be made of a metal material and used to feed an electrical signal, wherein the fed electrical signal is radiated through a radiation structure in the antenna unit to form an electromagnetic wave. Specifically, when the antenna unit is a liquid crystal antenna unit, the feeding structure may feed an electrical signal into the liquid crystal, and the signal is radiated outwardly through the radiation structure after the phase is modulated by the liquid crystal. When the antenna unit is a microstrip antenna, the feeding structure may feed an electrical signal into a microstrip line, and the signal is radiated outwardly through the microstrip line. Of course, the length, width and shape of the microstrip line may be determined according to the frequency of the electromagnetic wave to be radiated, and are not limited here.

[0082] After the multiple antenna units are arranged on the target plane, a radiation array can be formed, and the radiation array can be consistent with the target plane.

[0083] In this embodiment, the decoupling layer can be set on the whole surface. Specifically, the surface where the decoupling layer is located can be parallel to the target plane, and its orthographic projection on the target plane can cover the orthographic projections of multiple antenna units on the target plane on the whole surface. At least one slot pattern can be set in the decoupling layer. For each slot pattern, the slot pattern and the feed structure do not overlap on the decoupling layer, that is, the orthographic projection of the slot pattern on the target plane does not overlap with the orthographic projection of the feed structure on the target plane. Specifically, the orthographic projection of each slot pattern on the target plane does not overlap with the orthographic projection of any feed structure on the target plane.

[0084] Exemplarily, the slit pattern may have a gap between it and the orthographic projection of the feeding structure on the decoupling layer, and is located outside the orthographic projection of the feeding structure on the decoupling layer.

[0085] Among them, the gap pattern can be formed by hollow gaps on the decoupling layer. For example, the decoupling layer can include a dielectric material, and the gap pattern can be obtained by forming hollow gaps on the dielectric material. The dielectric material can be a metal material or other materials that can achieve a decoupling effect, such as a non-metallic material. The hollow gaps can block the transmission of current, thereby preventing crosstalk between currents.

[0086] In one example, a slot pattern can be a continuous and uninterrupted hollow slot, or a discontinuous hollow slot with intervals in the middle. When the slot pattern is a continuous and uninterrupted hollow slot, the current can be blocked on a complete line, effectively preventing the current from crosstalking in the corresponding direction. When the slot pattern is an intermittent and discontinuous hollow slot, the current in a specific direction can be blocked while allowing the necessary current signal to pass, such as allowing the transmission of the necessary current signal on the PCB board to ensure the antenna function. Of course, the specific setting can be based on actual needs and is not specifically limited in this embodiment.

[0087] In this embodiment, part or all of the slot pattern may be located between the orthographic projections of adjacent feeding structures on the decoupling layer. Specifically, a partial pattern of the slot pattern may be located between the orthographic projections of adjacent feeding structures on the decoupling layer. Thus, a hollow slot in the slot pattern exists in the region between the orthographic projections of adjacent feeding structures on the decoupling layer.

[0088] Specifically, Figure 1a As shown, a portion of the gap pattern is located between the orthographic projections of adjacent feeding structures on the decoupling layer, and another portion may not be located between the orthographic projections of adjacent feeding structures on the decoupling layer, but is located between the orthographic projection of one feeding structure on the decoupling layer and the edge of the decoupling layer.

[0089] Among them, all of the gap patterns can be located between the orthographic projections of adjacent feeding structures on the decoupling layer, such as Figure 1b As shown, a plurality of antenna units are arranged in an array on a target plane, and the slot pattern is a continuous pattern, all of which are located between the orthographic projections of two adjacent rows of feeding structures on the decoupling layer.

[0090] Among them, the slot pattern can be used to isolate the current crosstalk between at least one pair of adjacent antenna units among multiple antenna units. In the case of isolating a pair of adjacent antenna units, part or all of the slot pattern is set only between the positive projections of the two pairs of adjacent feeding structures on the decoupling layer, so as to directionally avoid crosstalk and mutual coupling between the two antenna units.

[0091] In the case of isolating multiple pairs of adjacent antenna units, part or all of the slot pattern may be located between the orthographic projections of multiple pairs of adjacent feeding structures on the decoupling layer, thereby directionally avoiding crosstalk and mutual coupling between the multiple antenna units.

[0092] Specifically, the slot pattern can also be used to isolate the current crosstalk between each adjacent pair of antenna units in the plurality of antenna units, that is, there is a hollow slot between the orthographic projections of each pair of adjacent feeding structures on the decoupling layer. Thus, the slot pattern may include multiple parts, and different parts are located between different pairs of orthographic projections of adjacent feeding structures on the decoupling layer. Figure 1b As shown, multiple antenna units are arranged in an array on a target plane, and the slot pattern is a continuous pattern, which includes multiple parts, such as part A1 and part B1, wherein part A1 is located between adjacent feeding structures in the row direction, and part B1 is located between two adjacent feeding structures in the column direction, so that the slot pattern can isolate the current crosstalk between each two adjacent antenna units.

[0093] Of course, the entirety of a slot pattern may also be located between the orthographic projection of the feed structure on the decoupling layer and the edge of the decoupling layer. In this case, the crosstalk of electrical signals from the feed structure located at the edge to other feed structures at the edge of the antenna device can be reduced, and crosstalk shielding between the feed structures can also be achieved.

[0094] In this embodiment, the orthographic projection of the feeding structure layer on the decoupling layer can be called a feeding area, wherein part or all of the slit pattern can be located between adjacent feeding areas, specifically, the slit pattern can be set in the gaps between multiple feeding areas.

[0095] When using the antenna device disclosed in the present invention, since part or all of the slot pattern is located between the positive projections of adjacent feeding structures on the decoupling layer, when the current generated by the adjacent feeding structure is transmitted to the film layer where the decoupling layer is located, it will be blocked by the slot pattern in the adjacent area of ​​the feeding area, thereby avoiding mutual crosstalk between the currents generated by the adjacent feeding structures.

[0096] In one example, the slot pattern may include a bending region, and the bending region may prevent current transmission between adjacent feeding structures, thereby more effectively avoiding current crosstalk. Figure 3a-3b As shown, several top-view schematic diagrams of the second antenna device are shown, such as Figure 3a-3b As shown, the slit pattern includes a straight slit, and the straight slit has at least one bending area;

[0097] The bending zone may include a bending zone located between the gaps between the orthographic projections of two adjacent feeding structures on the decoupling layer, and / or a bending zone located between the orthographic projection of the feeding structure on the decoupling layer and the edge of the decoupling layer.

[0098] In this example, the bending zone may be one or more. In the case of more than one, the bending zone may include a zone located between the gap between the orthographic projections of two adjacent feeding structures on the decoupling layer, and / or a zone located between the orthographic projection of the feeding structure on the decoupling layer and the edge of the decoupling layer. Of course, it is preferably located between the gap between the orthographic projections of two adjacent feeding structures on the decoupling layer to avoid signal crosstalk between the feeding structures; or, there is a bending zone between the gap between the orthographic projections of two adjacent feeding structures on the decoupling layer, and there is also a bending zone between the orthographic projection of the feeding structure on the decoupling layer and the edge of the decoupling layer. Among them, when there is a bending zone between the orthographic projection of the feeding structure on the decoupling layer and the edge of the decoupling layer, the suppression of crosstalk of the electrical signal of the feeding structure to other feeding structures at the edge position can be enhanced.

[0099] Among them, the bending zone can refer to a bend on a straight gap, that is, the gap pattern is a bent gap, wherein the bent part is called the bending zone. When the bending zone is located between the gaps of the positive projections of two adjacent feeding structures on the decoupling layer, the current generated by the two adjacent feeding structures in the bending zone will encounter at least two obstructions of the hollow gaps, thereby effectively avoiding current crosstalk.

[0100] For example, Figure 3a As shown, multiple antenna units are arranged in an array on the target plane, and the positive projection of the feeding structure on the decoupling layer can be called a feeding area, wherein the bending area of ​​the slot pattern can be located between two adjacent feeding areas, such as Figure 3aAs shown, there may be a bending area between each two adjacent feeding areas, so that the current crosstalk between the two adjacent feeding areas will be blocked in sequence by at least two hollow gaps in the bending area, so that the current cannot be transmitted at this position, thereby avoiding crosstalk between the current signals generated by the two feeding structures.

[0101] Among them, for a feeding structure, the feeding structure can have adjacent feeding structures on the four sides of up, down, left and right, so current crosstalk will be generated with the adjacent feeding structures in the up, down, left and right directions; then for each slot pattern, its straight slot and bending area can block the current flowing in the same direction, or, the straight slot and bending area can block the current flowing in different directions.

[0102] Accordingly, the bending gap includes a straight gap 301 and a bending area 302 connected to the straight gap;

[0103] Wherein, the straight gap is located between the orthographic projections of two adjacent feeding structures in the first direction on the decoupling layer; the bending area is located between the orthographic projections of two adjacent feeding structures in the second direction on the decoupling layer;

[0104] The first direction and the second direction are the same or different.

[0105] In this embodiment, the straight gap and the bending area can block the current flowing in the same direction, such as blocking the current crosstalk between the upper and lower adjacent feeding structures, or blocking the current crosstalk between the left and right adjacent feeding structures. Therefore, the straight gap and the bending area can be located between the adjacent feeding areas in the same direction, so that the first direction and the second direction are the same. For example, Figure 3a As shown, the bending area 302 and the straight slot 301 of the slot pattern both block the current crosstalk between two adjacent feeding structures above and below, that is, between two adjacent feeding structures in the column direction, thereby enhancing the suppression of crosstalk mutual coupling in this direction.

[0106] Alternatively, the straight slots and the bends of the slot pattern can block current crosstalk in different directions, such as the straight slot blocks the current crosstalk between two adjacent feed structures, and the bend blocks the current crosstalk between two adjacent feed structures. Thus, the straight slot can be located between adjacent feed areas in a first direction, and the bend can be located between adjacent feed areas in a second direction. The first direction and the second direction can be different, such as the first direction and the second direction can be orthogonal. For example, Figure 3bAs shown, the bending area of ​​the slot pattern blocks the current crosstalk between two adjacent feeding structures on the left and right (i.e., two adjacent feeding structures in the row direction), and the straight slot of the slot pattern blocks the current crosstalk between two adjacent feeding structures on the top and bottom (i.e., two adjacent feeding structures in the column direction). Thus, the slot pattern can suppress the crosstalk coupling in two directions at the same time.

[0107] Exemplarily, when multiple antenna units are arranged in an array, if the straight gap and the bending area can block the current crosstalk in the same direction, the straight gap can extend in the column direction or the row direction, that is, the straight gap and the bending area can be located between two adjacent feeding areas in the column direction, or, the straight gap and the bending area can be located between two adjacent feeding areas in the row direction.

[0108] If the linear gap and the bending area can block current crosstalk in different directions, the linear gap can extend in the column direction, that is, the linear gap can be located between two adjacent feeding areas in the column direction, and the bending area can be located between two adjacent feeding areas in the row direction.

[0109] In one example, when the straight gap and the bending zone can block the current crosstalk in different directions, the vertical distance between the orthographic projections of two adjacent feeding structures in the second direction on the decoupling layer is smaller than the vertical distance between the orthographic projections of two adjacent feeding structures in the first direction on the decoupling layer. As a result, the bending zone can be located between two feeding zones with a closer spacing. Since the current crosstalk of the feeding zones with a closer spacing is stronger, the crosstalk suppression strength between the two feeding zones can be enhanced by setting a bending zone between the two feeding zones with a closer spacing.

[0110] In some examples, the bending zone can be an "X" shape or other bending shapes. Specifically, the bending zone can be at least one of an "X" shape, an arc shape, a triangle, and a wave shape. Accordingly, the orthographic projection of the bending zone on the target plane includes at least one of an "X" shape, an arc shape, a triangle, and a wave shape.

[0111] Specifically, a slit pattern may include multiple bending areas, and the bending areas at different positions may have different bending shapes, that is, a slit pattern may include bending areas of multiple different shapes. Of course, in another example, a slit pattern may include multiple bending areas of the same shape, that is, the shapes of the multiple bending areas on the straight slit are consistent.

[0112] Among them, if the straight gap and the bending area both block the current between two adjacent feeding structures in the same direction, the bending area can be in a wavy shape or an arc shape, thereby extending the blocking path of the current in this direction, thereby enhancing the suppression of current crosstalk in the same direction. For example, Figure 3a As shown, if it is wavy or arc-shaped, the current transmitted in the up and down directions will encounter a hollow gap with a longer length and a more tortuous path here to prevent it from being transmitted to the opposite side, so its suppression effect is enhanced.

[0113] If the straight gap and the bending area block the current between two adjacent feeding structures in different directions, the bending area can be in the shape of a figure-on-a-line or a triangle, thereby enhancing the blocking of the current transmitted in the other direction. Figure 3b As shown, if it is wavy or arc-shaped, the current transmitted in the up and down directions will encounter a hollow gap with a longer length and a more tortuous path here to prevent it from being transmitted to the opposite side, so its suppression effect is enhanced.

[0114] In some examples, multiple antenna units can be arranged in an array, for example, multiple antenna units can be arranged in multiple rows and columns. In one example, in order to enhance the current crosstalk between two adjacent feeding structures in the first direction, a first hollow gap 303 can be added between two adjacent feeding areas in the first direction, and connected to the bending area, so as to enhance the suppression of crosstalk mutual coupling in the first direction.

[0115] Specifically, the slot pattern also includes a first hollow slot 303, which is located between the orthographic projections of two adjacent feeding structures in the first direction on the decoupling layer and is connected to two adjacent bending areas; wherein the first hollow slot is spaced apart from the straight slot and has no overlap with the orthographic projection of the feeding structure on the decoupling layer.

[0116] In this example, refer to Figure 4a As shown, a top view schematic diagram of a third antenna device is shown, such as Figure 4a As shown, in the case where the straight line gap and the bending area can block the current between two adjacent feeding structures in the same direction, the straight line gap and the bending area are both located between two adjacent feeding areas in the first direction, then the first hollow gap can also be located between two adjacent feeding areas in the first direction, and form two levels of crosstalk suppression with the straight line gap, thereby further strengthening the suppression of crosstalk mutual coupling in the first direction.

[0117] In this example, refer to Figure 4b As shown, a schematic top view of a fourth antenna device is shown, such as Figure 4aAs shown, in the case where the straight gap and the bending area can block the current between two adjacent feeding structures in different directions, the straight gap can be located between two adjacent feeding areas in the first direction, the bending area can be located between two adjacent feeding areas in the second direction, and the first hollow gap can also be located between two adjacent feeding areas in the first direction and connected to the two adjacent bending areas. Thus, the crosstalk suppression in the second direction is achieved through the bending area, and the two-layer crosstalk suppression in the first direction is achieved through the straight gap and the first hollow gap. In the case of uniform arrangement of antenna units, the spacing between the feeding structures is not much different. Through this design, the decoupling layer can have stronger suppression of current crosstalk in the first direction and the second direction, thereby improving the overall suppression effect.

[0118] Furthermore, in one example, when multiple antenna units are arranged in an array, in the slot pattern of the decoupling layer, the straight slots and bending areas of the slot pattern can suppress current crosstalk in different directions. In this case, the first direction can be orthogonal to the second direction, such as the first direction is the row direction and the second direction is the column direction.

[0119] Accordingly, in addition to suppressing the current crosstalk in two orthogonal directions through the straight slots and the bending area, the slot pattern can also suppress the current crosstalk in the oblique direction, and the oblique direction can refer to: the remaining feeding areas of the feeding area except the four adjacent feeding areas in the upper, lower, left and right directions. Therefore, in order to suppress the current crosstalk in the oblique direction, a second hollow slot can be used as a transition between the bending area and the straight slot; wherein the angle between the second hollow slot 304 and the straight slot is greater than 90 degrees.

[0120] Reference Figure 4c As shown, a top view schematic diagram of a fifth antenna device is shown, such as Figure 4c As shown, multiple antenna units are arranged in an array, and the slot pattern includes a straight slot 301, a bending area 302, and a second hollow slot 304; wherein the straight slot is located in the first direction, such as between two adjacent feeding areas in the column direction; the bending area is located in the second direction, such as between two adjacent feeding areas in the row direction; the second hollow slot is located between the straight slot and the bending area, and as a transition from the straight slot to the bending area, it can be located in the oblique direction ( Figure 4c Between two adjacent feeding areas in the direction indicated by the arrow in the figure. It can suppress the current crosstalk in this direction.

[0121] Exemplarily, the angle between the second hollow gap and the straight gap may be 145 degrees, and of course may be other angles, which are not limited here.

[0122] This design can not only suppress the current crosstalk in the first direction and the second direction, but also suppress the strong coupling and crosstalk in a specific direction.

[0123] In another example, there may be multiple bending regions between two adjacent feeding regions. In this case, if the straight gap and the bending region suppress the current crosstalk in the same direction, there may be multiple bending regions, such as Figure 3a As shown, if the bending area is an arc shape, it blocks the transmission of current transmitted in the up and down directions. It can include multiple arcs, that is, multiple bends can be formed here to lengthen the blocking path and enhance the suppression effect of crosstalk current.

[0124] Specifically, in this example, the straight gaps and the bending areas can suppress current crosstalk in different directions, that is, the first direction and the second direction may be inconsistent, for example, may be orthogonal, and thus, among the multiple feeding structures, there may be at least one pair of first feeding structures and second feeding structures adjacent in the second direction; wherein the first feeding structure and the second feeding structure have multiple bending areas between their orthographic projections on the decoupling layer.

[0125] In this example, multiple bending zones may be formed between a pair of adjacent feeding zones, or multiple bending zones may be formed between partially adjacent feeding zones in the second direction, or multiple bending zones may be formed between every two adjacent feeding zones in the second direction.

[0126] Among them, the multiple bending areas formed between each two adjacent feeding areas can be two or more, and the multiple bending areas can have the same bending shape or different bending shapes. When having different bending shapes, multiple different levels of blocking of current crosstalk in the second direction can be achieved, thereby improving the effect of suppressing current crosstalk.

[0127] Reference Figure 4d As shown, a schematic diagram of a top view of a sixth antenna device is shown, such as Figure 4d As shown, the bending zone may include multiple bending zones, and each pair of adjacent feeding zones in the second direction (the positive projections of the first feeding structure and the second feeding structure on the decoupling layer) may have multiple bending zones, thereby improving the crosstalk suppression of the current of the two adjacent feeding structures in the second direction. Since there are multiple bending zones between two adjacent feeding zones, multi-layer blocking of the current crosstalk in the second direction can be achieved through the multiple bending zones, thereby further reducing the probability of current crosstalk and improving the crosstalk suppression effect.

[0128] As described in the above examples, the straight slots and the bending areas of the slot pattern can suppress the current crosstalk in the same direction, or suppress the current crosstalk in different directions. In either case, the suppression of the current crosstalk in other directions can also be enhanced, and the other direction can be a third direction different from the first direction, that is, when the straight slot suppresses the current crosstalk in the first direction, the current crosstalk in the third direction different from the first direction can also be suppressed.

[0129] Specifically, the gap pattern may also include at least one third hollow gap 305, and the third hollow gap 305 is located between the positive projections of the feeding structures adjacent in the third direction on the decoupling layer, wherein the third direction is different from the first direction, and there is a gap between the bending zone and the third hollow gap, or the bending zone is partially connected to the third hollow gap.

[0130] In one example, when the straight slots and the bending area of ​​the slot pattern both suppress the current crosstalk in the same direction, the first direction is the same as the second direction, and the straight slots and the bending area are both located between adjacent feeding areas in the first direction to suppress the current crosstalk in the first direction, then the third hollow slot can be located between adjacent feeding areas in a third direction, and the third direction is orthogonal to the first direction. Figure 5a As shown, a schematic top view of an antenna device having a third hollow slot is shown, as shown in Figure 5a As shown, the straight gap and the bending area are located between adjacent feeding areas in the column direction, which can suppress the adjacent current crosstalk in the column direction. The third hollow gap can be located between adjacent feeding areas in the row direction, which can suppress the adjacent current crosstalk in the row direction.

[0131] In this example, there is no overlap between the straight slot and the third hollow slot, or the straight slot and the third hollow slot partially overlap. In the case of no overlap, there is a gap between the straight slot and the third hollow slot and they are not connected, thereby allowing current in a specific direction (current between the first direction and the third direction) to pass through, thereby ensuring antenna performance. In the case where the straight slot and the third hollow slot partially overlap, the straight slot and the third hollow slot are connected, thereby forming a continuous hollow slot in the first direction and the third direction, thereby avoiding current crosstalk between the first direction and the third direction.

[0132] In this example, when the straight slots and the bending areas of the slot pattern suppress the current crosstalk in different directions, the straight slots can be located between adjacent feeding areas in the first direction to suppress the current crosstalk in the first direction, and the bending areas can be located between adjacent feeding areas in the second direction to suppress the current crosstalk in the second direction. Then, the third hollow slot can be located between adjacent feeding areas in the second direction, and the third direction can be the same as the second direction. Figure 5b As shown, a schematic top view of an antenna device having a third hollow slot is shown, as shown in Figure 5b As shown, the straight slot is located between adjacent feeding areas in the column direction, and the third hollow slot and the bending area can be located between adjacent feeding areas in the row direction. In this example, since the bending area is also located between two feeding areas in the third direction, the bending area can have no overlap with the third hollow slot, or the bending area and the third hollow slot can partially overlap. In the case of no overlap, a multi-layer barrier to current can be formed between the bending area and the third hollow slot, thereby improving the suppression effect of crosstalk mutual coupling.

[0133] In this example, there may be at least one third hollow gap between every two adjacent feed areas in the third direction, or, for all feed areas in the third direction, there may be at least one third hollow gap between only some of the adjacent feed areas, and there may be no third hollow gap between the remaining adjacent feed areas.

[0134] In some other examples, the feeding structures adjacent in the third direction may also be feeding structures adjacent in the oblique direction. In this case, even if the first direction and the second direction are orthogonal, the third direction may be different from the first direction and the second direction. Then the third hollow gap may be an oblique gap in the gap pattern, referring to Figure 5c As shown, a schematic top view of an antenna device having a third hollow slot is shown, as shown in Figure 5c As shown, if the straight slot is located between adjacent feeding areas in the column direction, the bending area can be located between adjacent feeding areas in the row direction, and the third hollow slot is located between adjacent feeding areas in the oblique direction, wherein both ends of the third hollow slot can be connected to the straight slot. When this example is adopted, the crosstalk current in the first direction can be suppressed by the straight slot, the crosstalk current in the second direction can be suppressed by the bending area, and the crosstalk current in the third direction can be suppressed by the third hollow slot, so that the crosstalk current in the three directions can be suppressed, and the suppression effect is enhanced.

[0135] Of course, this design can be combined with the above-mentioned second hollow gap, so that each feeding area can suppress the crosstalk current from other feeding areas in multiple directions.

[0136] In one example, a plurality of slot patterns may be included, and the plurality of slot patterns may cooperate with each other so that their orthographic projections on the target plane may enclose the orthographic projection of the feed structure on the target plane. Specifically, the plurality of slot patterns include at least one pair of adjacent first slot patterns 31 and second slot patterns 32; wherein the orthographic projection of at least one feed structure on the decoupling layer is in the area defined by the first slot pattern 31 and the second slot pattern 32.

[0137] Furthermore, the third hollow slits 305 on the first slit pattern 31 and the third hollow slits 305 on the second slit pattern 32 may be connected to each other.

[0138] In this example, multiple feeding structures can be arranged in an array, and the first slot pattern and the second slot pattern can enclose a row of feeding areas or a column of feeding areas. In the case where the bending area and the straight slot can suppress the current crosstalk in the same direction, the first direction is the same as the second direction, and the straight slot and the bending area are both located between adjacent feeding areas in the first direction to suppress the current crosstalk in the first direction, then the third hollow slot can be located between adjacent feeding areas in a third direction, and the third direction is orthogonal to the first direction. Wherein, referring to Figure 5d As shown, a schematic top view of an antenna device having a third hollow slot is shown, as shown in Figure 5d As shown, the straight gap and the bending area are located between adjacent feeding areas in the column direction, which can suppress the adjacent current crosstalk in the column direction. The third hollow gap can be located between adjacent feeding areas in the row direction, which can suppress the adjacent current crosstalk in the row direction. The third hollow gap on the first gap pattern and the second gap pattern can be connected, so as to achieve comprehensive blocking of the current crosstalk in the row direction. That is to say, the current transmitted from one feeding area to another adjacent feeding area in the row direction is completely blocked by the third hollow gap, so that it cannot enter the other feeding area and generate crosstalk to the current of the other feeding area, thereby improving the effect of suppressing the crosstalk current.

[0139] Wherein, in the case where the bending area and the straight gap can suppress the current crosstalk in different directions, the first direction is orthogonal to the second direction, the straight gap can be located between the adjacent feeding areas in the first direction to suppress the current crosstalk in the first direction, the bending area can be located between the adjacent feeding areas in the second direction to suppress the current crosstalk in the second direction, then the third hollow gap can be located between the adjacent feeding areas in the second direction, and the third direction can be the same as the second direction. Wherein, with reference to Figure 5e As shown, a schematic top view of an antenna device having a third hollow slot is shown, as shown in Figure 5eAs shown, the straight gap is located between adjacent feeding areas in the column direction, the third hollow gap and the bending area can be located between adjacent feeding areas in the row direction, the first gap pattern and the third hollow gap on the second gap pattern can be connected, so as to achieve comprehensive blocking of current crosstalk in the row direction through the bending area and the third hollow gap. That is to say, the bending area can form a multi-level blocking of the current transmitted from one feeding area to another adjacent feeding area in the row direction, and the third hollow gap can block the crosstalk current that is not successfully blocked by the bending area and overflows, thereby further improving the effect of suppressing the crosstalk current.

[0140] In one example, a plurality of slit patterns may be included, and the plurality of slit patterns may cooperate with each other so that their orthographic projections on the target plane may enclose the orthographic projection of the feed structure on the target plane. Specifically, the plurality of slit patterns include at least one pair of adjacent first slit patterns and second slit patterns; wherein, in the first slit pattern and the second slit pattern, the orthographic projection of at least one of the feed structures on the decoupling layer is in the area defined by the first slit pattern and the second slit pattern.

[0141] Among them, the shapes of multiple slit patterns can be the same or different, and the first slit pattern and the second slit pattern partially or completely enclose the positive projection of at least one feeding structure on the decoupling layer, so that at least one feeding area is in the area defined by the first slit pattern and the second slit pattern.

[0142] Exemplarily, multiple antenna units can be arranged in an array, and the feed areas corresponding to the multiple feed structures are also arranged in an array on the decoupling layer, and the first slot pattern and the second slot pattern are adjacent, and the area defined by the two can be a complete row of feed areas, or a portion of the feed areas in a row of feed areas; or, the area defined by the two can include a column of feed areas, or a portion of the feed areas in a column of feed areas. For example, the first slot pattern and the second slot pattern can be slot patterns that are adjacent in the column direction, and the first slot pattern and the second slot pattern are located on the upper and lower sides of a row of feed areas. For each feed area on the row, it can be enclosed by the first slot pattern and the second slot pattern, or a portion of the feed area is enclosed by the first slot pattern and the second slot pattern. Alternatively, the first slit pattern and the second slit pattern can be adjacent slit patterns in the row direction, and the first slit pattern and the second slit pattern are located on the left and right sides of a column of feeding areas. For each feeding area on the column, it can be enclosed by the first slit pattern and the second slit pattern, or part of the feeding area on the column is enclosed by the first slit pattern and the second slit pattern.

[0143] In which, the decoupling layer may include a pair of adjacent first slit patterns and a second slit pattern to suppress crosstalk of multiple feeding areas on a row or a column, or the decoupling layer may include multiple pairs of adjacent first slit patterns and second slit patterns, each pair of first slit patterns and second slit patterns encloses a row or a column of feeding areas to suppress crosstalk mutual coupling generated by feeding areas between rows or columns.

[0144] Among them, for multiple slit patterns, the shapes of the multiple slit patterns can be different, for example, different slit patterns have different shapes, or the shapes of the multiple slit patterns are the same. For the first slit pattern and the second slit pattern, the shapes of the first slit pattern and the second slit pattern can be the same or different, for example, there are the following exemplary ways:

[0145] One way is: the straight slots and the bending area in the first slot pattern both suppress the current crosstalk in the same direction, while the straight slots and the bending area in the second slot pattern suppress the current crosstalk in different directions. Figure 6a As shown, a schematic diagram of a top view of a seventh antenna device is shown, such as Figure 6a As shown, the straight slots and the bending areas of the second slot pattern 32 are both located between adjacent feeding areas in the column direction, the straight slots in the first slot pattern 31 are located between adjacent feeding areas in the column direction, and the bending areas are located between adjacent feeding areas in the row direction. When this method is adopted, different slot patterns can be used to enhance the suppression of current crosstalk in multiple directions.

[0146] Another way is that the straight slots and the bending areas in the multiple slot patterns all suppress the current crosstalk in the same direction, but different slot patterns have bending areas of different shapes, for example, the straight slots and the bending areas of the multiple slot patterns are all located between adjacent feeding areas in the column direction, the first slot pattern uses a wavy bending area, and the second slot pattern uses an arc-shaped bending area. This way can be adapted to suppress strong coupling and crosstalk in a specific direction.

[0147] Of course, the above is only an exemplary description. In practice, there are many ways of matching according to needs, which will not be elaborated here.

[0148] In another example, the first slit pattern and the second slit pattern may be the same, but are axially symmetrical to each other. In this example, the straight slits and the bending areas in the slit pattern both suppress current crosstalk in different directions. Figure 6b , shows a top plan view of an eighth antenna device, such as Figure 6bAs shown, the first slit pattern and the second slit pattern have the same shape, that is, the straight slit is located between adjacent feeding areas in the column direction, and the bending area is located between adjacent feeding areas in the row direction, and the first slit pattern and the second slit pattern are axially symmetrical, thereby allowing the first slit pattern and the second slit pattern to form an encirclement around each feeding area, thereby effectively suppressing the outward transmission of current in the feeding area, thereby enhancing the crosstalk suppression effect.

[0149] For example, Figure 6b As shown, the first slit pattern and the second slit pattern may enclose a plurality of feed areas in a row, or in some other examples, may also enclose a plurality of feed areas in a column.

[0150] Exemplarily, each pair of the first slit pattern and the second slit pattern may be axially symmetrical, or some of the slit pattern pairs in a plurality of adjacent pairs of the first slit pattern and the second slit pattern may be axially symmetrical, while other pairs of the slit patterns may not be axially symmetrical.

[0151] It should be noted that, in the above example, the bending area can be combined with at least one of the first hollow gap, the second hollow gap and the third hollow gap to form a gap pattern of different shapes. Wherein, when the bending area is combined with the first hollow gap, it can be connected with the first hollow gap; when the bending area is combined with the third hollow gap, it can be connected with the third hollow gap; that is, for a gap pattern, it can include both the bending area and the first hollow gap, or both the bending area and the second hollow gap; or both the bending area and the third hollow gap; or, a gap pattern can include both the bending area and the first hollow gap, and the second hollow gap; or, a gap pattern can include the bending area, the second hollow gap and the third hollow gap; or, a gap pattern can include the bending area, the first hollow gap and the third hollow gap; or, a gap pattern can include the bending area, the first hollow gap and the third hollow gap; or, a gap pattern can include the bending area, the first hollow gap, the second hollow gap and the third hollow gap.

[0152] Of course, the more hollow gaps are included, the higher the suppression strength of the crosstalk current between the feeding structures is, so that the performance of the antenna device can be better.

[0153] In one example, the slot pattern may include straight slots and bending regions, wherein the straight slots and the bending regions may be interconnected to form a plurality of closed slots, and a closed slot may enclose a positive projection of a feeding structure on the decoupling layer.

[0154] As described in the above embodiment, a plurality of slit patterns may be included, a pair of adjacent slit patterns may be axially symmetrical, and a closed slit may be formed by two axially symmetrical slit patterns being connected to each other.

[0155] Reference Figure 7a-Figure 7b As shown, two schematic top-view diagrams of two antenna devices with closed gaps are shown, such as Figure 7a As shown, a closed gap can be formed by connecting two axially symmetrical gap patterns to each other. The gap pattern can include a straight gap extending in a first direction, a first hollow gap extending in the first direction, a plurality of bending areas formed between two adjacent feeding areas in the second direction, and a third hollow gap formed between two adjacent feeding areas in the second direction. A closed hollow gap enclosing the feeding area is formed by connecting the third hollow gap and the bending area.

[0156] like Figure 7b As shown, the closed gap can be formed by connecting two axially symmetrical gap patterns to each other, and the gap pattern can include a straight gap extending in the first direction and a straight gap extending in the second direction, and a bending area is formed where the two straight gaps are connected; and there are two third hollow gaps between the straight gaps extending in the second direction, that is, a plurality of third hollow gaps are formed between each adjacent two feeding areas, and the third hollow gaps are connected with the bending area and the straight gaps respectively to form a closed hollow gap enclosing the feeding area.

[0157] Below, several slit patterns of the decoupling layer are exemplarily described.

[0158] Example A, an antenna unit array arrangement, which includes multiple slot patterns, and the multiple slot patterns are also arranged in an array, the slot patterns at different positions have the same shape, each slot pattern includes a straight slot and a bending area, and the bending area is a "J" shape bend; wherein the straight slot extends along the row direction and is located between adjacent feeding areas in the column direction, thereby isolating the crosstalk current between rows; the bending area is bent along the column direction and is located between adjacent feeding areas in the row direction, thereby isolating the crosstalk current between columns; wherein two adjacent slot patterns can be formed on the upper and lower sides of a row of feeding areas, and the two adjacent slot patterns are axially symmetrical, and the decoupling layer of Example A is used, and the slot patterns are connected on the entire decoupling layer, cutting off the crosstalk current between rows and columns, thereby avoiding the flow of crosstalk current on the entire layer of metal, thereby suppressing coupling and crosstalk between antenna units.

[0159] Example B, such as Figure 7aAs shown, the antenna units are arranged in an array, wherein a plurality of slot patterns are included, and the plurality of slot patterns are also arranged in an array, and the slot patterns at different positions have the same shape, and each slot pattern includes a straight slot and a bending area, and the bending area is a "J"-shaped bending; wherein the straight slot extends in the row direction and is located between adjacent feeding areas in the column direction, thereby spacing the crosstalk current between the rows; the bending area is bent in the column direction and is located between adjacent feeding areas in the row direction, and there are two bending areas between each two adjacent feeding areas in the row direction, thereby spacing the crosstalk current between the columns; two adjacent slot patterns can be formed on the upper and lower sides of a row of feeding areas, and the two adjacent slot patterns are axially symmetrical, and the two adjacent slot patterns are axially symmetrical;

[0160] Each slot pattern has at least one first hollow slot in the horizontal direction (extending in the row direction) near one side of the feeding area, so as to further suppress the current crosstalk of the feeding structure in the column direction. At the same time, a third hollow slot is provided between each two adjacent feeding areas in the row direction, which is conducive to cutting off the horizontal crosstalk current. The third hollow slot is connected in the middle of the two bending areas, and the third hollow slot and the straight slot form a closed slot.

[0161] Example C, antenna units are arranged in an array, wherein a plurality of slot patterns are included, and the plurality of slot patterns are also arranged in an array, wherein the slot pattern includes a plurality of closed slots, one closed slot encloses one feeding area, and the slot pattern includes a straight slot and a bending area, and the bending area is a right-angle bending area;

[0162] For each feeding area, the gap pattern around it is composed of a combination of connected vertical closed gaps and transverse closed gaps, and two transverse gaps are also connected between two adjacent feeding areas in the transverse direction, wherein the two transverse gaps and the vertical closed gap can form a bending area of ​​the gap pattern; thus, there are multiple gaps in the transverse and vertical directions between the two feeding areas to cut off possible crosstalk currents, thereby achieving the effect of suppressing the coupling crosstalk between the liquid crystal antenna units.

[0163] Example D, see Figure 7c As shown, a top view schematic diagram of a ninth antenna device is shown, such as Figure 7c As shown, the antenna units are arranged in an array, wherein a plurality of slot patterns are included, and the plurality of slot patterns are also arranged in an array, and the slot patterns at different positions have the same shape, and each slot pattern includes a straight slot and a bending area, and the bending area is a "J"-shaped bending; wherein the straight slot extends in the row direction and is located between adjacent feeding areas in the column direction, thereby isolating the crosstalk current between the rows; the bending area is bent in the column direction and is located between adjacent feeding areas in the row direction, thereby isolating the crosstalk current between the columns; wherein two adjacent slot patterns can be formed on the upper and lower sides of a row of feeding areas, and the two adjacent slot patterns are axially symmetrical;

[0164] Among them, the straight line gaps in each bending area are transitioned by an oblique second hollow gap, and the angle between the second hollow gap and the straight line gap can be 145 degrees. The existence of the second hollow gap is conducive to suppressing the oblique crosstalk current between the two feeding areas.

[0165] In one example, a size of the slit pattern in a normal direction of the decoupling layer is 10 μm to 50 μm; in another example, a slit width of the slit pattern is 0.05 mm to 0.5 mm.

[0166] In this example, the size of the slit pattern in the normal direction of the decoupling layer can be called the height of the slit pattern, where different slit patterns can have different or the same heights; for the same slit pattern, the heights of its straight slits and bending areas can be the same.

[0167] Among them, the gap width of the gap pattern may refer to the gap size of the gap. Different gap patterns may have different or the same gap widths. For the same gap pattern, the gaps in different areas may have different widths. For example, the widths of the bending area and the straight line gaps may be different. Specifically, wider gaps may be set in areas with larger crosstalk currents to enhance the suppression of crosstalk, and smaller gaps may be set in areas with smaller crosstalk currents to reduce space occupancy.

[0168] For another example, the widths of the bending area and the straight line gap may be the same, but the widths of the first hollow gap, the bending area, and the straight line gap may be different, such as Figure 4b and 4a As shown, the situation is shown where the width of the first hollow gap is different from that of the bending area and the straight gap. In this case, the gap width of the first hollow gap can be smaller. Thus, the first hollow gap can play a complementary role in suppressing the crosstalk current, enhance the suppression effect, and minimize the space occupied.

[0169] For another example, the width of the bending area and the straight line gap can be the same, but the width of the second hollow gap can be different from that of the bending area and the straight line gap. Figure 5b As shown, the width of the second hollow gap can be the same as that of the bending area and the straight gap. In this case, a uniform crosstalk current suppression effect can be achieved for currents in the first direction, the second direction and the oblique direction.

[0170] For another example, the widths of the bending area and the straight line gap may be the same, but the widths of the third hollow gap, the bending area and the straight line gap may be different, such as Figure 5bAs shown, the third hollow gap is different from the bending area and the straight gap in width. For example, the gap width of the third hollow gap can be smaller. Therefore, the third hollow gap can play a complementary role in suppressing the crosstalk current, enhance the suppression effect, and minimize the space occupied. Of course, in some examples, the width of the third hollow gap can be the same as that of the bending area and the straight gap, such as Figure 5a As shown, under the same circumstances, the suppression effect on the crosstalk current can be enhanced.

[0171] It should be noted that, with respect to the slot pattern, its straight slot can be located in the middle position of two adjacent feeding areas in the first direction, that is, the vertical distances from the straight slot to the two adjacent feeding areas can be the same, or the vertical distances from the straight slot to the two adjacent feeding areas can be different; wherein, when the distances are the same, the blocking effect on the current in the two adjacent feeding areas is not much different, thereby achieving balanced suppression of the crosstalk current, so that the crosstalk current of the entire antenna device is uniformly suppressed, thereby improving the performance of the antenna device.

[0172] For the slot pattern, the vertical distances between the straight slot and the bending area and the same feeding area can be the same or different. For example, Figure 3b As shown, the vertical distances from the straight gap and the bending area to the same feeding area are different. It can be seen from Figure 5 that for a feeding area, it has bending areas on both the left and right sides. In one case, the closest vertical distances from the bending areas on the left and right sides to the feeding area may be the same, or may be different. Of course, in order to uniformly suppress the crosstalk current of the entire antenna device, the closest vertical distances from the bending area to the feeding area may be the same.

[0173] The above description is only an example, and the distance from the slot pattern to the feeding area can be designed according to the requirements.

[0174] The following is an exemplary description of the position setting of the decoupling layer.

[0175] In an example, the antenna unit may be a liquid crystal antenna unit, and the antenna device may further include:

[0176] A liquid crystal box 400, in which liquid crystal is arranged, and a plurality of antenna units are formed on one side of the liquid crystal;

[0177] The decoupling layers are formed on the same side of the liquid crystal box, or the decoupling layers are formed on different sides of the liquid crystal box.

[0179] In this embodiment, whether there is one decoupling layer or multiple decoupling layers, they can be arranged on the same side of the liquid crystal box; or, in the case of including multiple decoupling layers, the multiple decoupling layers can be distributed on different sides of the liquid crystal box.

[0180] In this example, in the case of one decoupling layer, the decoupling layer and the antenna unit may be located on the same side of the liquid crystal box, or the decoupling layer and the antenna unit may be respectively arranged on different sides of the liquid crystal box.

[0181] In this example, in the case of multiple decoupling layers, the multiple decoupling layers can also be arranged on the same side of the liquid crystal box, for example, all are on the same side of the liquid crystal box as the antenna unit, or the antenna unit is located on the first side of the liquid crystal box, and the multiple decoupling layers are all arranged on the second side of the liquid crystal box relative to the first side.

[0182] In the case of having multiple decoupling layers, the multiple decoupling layers can be distributed on different sides of the liquid crystal box. For example, some decoupling layers are located on the first side of the liquid crystal box, that is, they are arranged on the same side as the antenna unit, and other part of the decoupling layers are located on the second side of the liquid crystal box, that is, they are arranged on a different side from the antenna unit.

[0183] For example, refer to Figure 8 As shown, Figure 8 A schematic cross-sectional structure diagram of a tenth antenna device is shown, wherein decoupling layers can be arranged on both sides of the liquid crystal box, wherein one decoupling layer and the antenna unit are located on the first side of the liquid crystal box, and the other decoupling layer is located on the second side of the liquid crystal box.

[0184] In one example, in the case of including multiple decoupling layers, the multiple decoupling layers can be arranged in different layers, wherein the gap patterns of the multiple decoupling layers can be different in pattern shape and / or gap size, and the gap size includes at least one of the gap width, gap length, and the size of the gap in the normal direction of the decoupling layer.

[0185] In this example, if there are multiple decoupling layers, the pattern shapes and gap sizes of the multiple decoupling layers may be consistent, or different decoupling layers may have different pattern shapes or different gap sizes, or different decoupling layers may have different pattern shapes and different gap sizes. Of course, in some examples, the pattern shapes and gap sizes of the multiple decoupling layers located on the first side of the liquid crystal box with the antenna unit may be the same, while the pattern shape and / or gap size of the decoupling layer located on the second side of the liquid crystal box may be different from the pattern shape and / or gap size of the decoupling layer located on the first side of the liquid crystal box. For example, the pattern shape of the decoupling layer on the second side of the liquid crystal box is different from the pattern shape of the decoupling layer on the first side of the liquid crystal box, or the gap size of the decoupling layer on the second side of the liquid crystal box is different from the gap size of the decoupling layer on the first side of the liquid crystal box, or the gap size of the decoupling layer on the second side of the liquid crystal box is different from the gap size of the decoupling layer on the first side of the liquid crystal box, or the gap size and pattern shape of the decoupling layer on the second side of the liquid crystal box are both different from the gap size and pattern shape of the decoupling layer on the first side of the liquid crystal box.

[0186] In particular, when the pattern shapes and gap sizes of multiple decoupling layers are consistent, the difficulty of manufacturing the decoupling layers can be reduced. For example, the same mask plate can be used, which can simplify the process and improve the manufacturing efficiency.

[0187] For example, the decoupling layer A located on the first side of the liquid crystal box is arranged on the same side as the antenna unit, and its pattern shape may be different from the pattern shape of the decoupling layer B located on the second side of the liquid crystal box. For example, the slit pattern of the decoupling layer A may include a plurality of closed slits, each of which surrounds a feeding area, for example, it may be Figure 7a and Figure 7b The slit patterns shown in FIG. 1 and FIG. 2 may not form closed slits. For example, the slit patterns of the decoupling layer B may not form closed slits. Figure 7c , Figure 6a and Figure 6b When this example is adopted, the decoupling layer arranged on the same side as the antenna unit has a slot pattern that can suppress the crosstalk current generated by the adjacent feeding structures in multiple directions, while the decoupling layer arranged on the different side from the antenna unit can suppress the crosstalk current generated by the adjacent feeding structures in a specific direction, so that the crosstalk current generated by the feeding structure in the thickness direction of the liquid crystal box can be suppressed simultaneously through the decoupling layers arranged on both sides, thereby improving the suppression effect of crosstalk mutual coupling.

[0188] Specifically, the different slit sizes of the slit pattern may refer to: at least one of the slit width, slit length and slit height. For example, the decoupling layer A located on the first side of the liquid crystal box is arranged on the same side as the antenna unit, and the pattern shapes of the two may be the same or different, and the slit sizes may also be different; for example, the slit width of the decoupling layer A may be greater than the slit width of the decoupling layer B, or the slit length of the decoupling layer A may be greater than the slit length of the decoupling layer B, or the slit height of the decoupling layer A may be greater than the slit height of the decoupling layer B. Alternatively, in at least two dimensions of the slit width, the slit length and the slit height, the size of the decoupling layer A is greater than the size of the decoupling layer B. When this example is adopted, the decoupling layer arranged on the same side as the antenna unit has a larger gap size, which can form a strong barrier to the crosstalk current generated by the adjacent feeding structures in multiple directions, thereby enhancing the suppression of the crosstalk current on the first side. The decoupling layer arranged on the different side of the antenna unit has a smaller gap size, which can avoid occupying space. In addition to suppressing the crosstalk current on the second side, it can also reduce the space of the hollow gap of the overall antenna device, thereby improving the hardware firmness of the antenna device.

[0189] Further, refer to Figure 9a and Figure 9b As shown, two other cross-sectional schematic diagrams of antenna devices are shown, such as Figure 9aAs shown, the liquid crystal box may include a first substrate 402 and a second substrate 401, and the liquid crystal 404 is located between the first substrate 402 and the second substrate 401; wherein the antenna unit includes:

[0190] A feeding layer 201 is arranged on one side of the second substrate 401, and a feeding structure 200 is arranged in the feeding layer 201;

[0191] The antenna layer 500 is arranged on a side of the feed layer 201 away from the liquid crystal 404;

[0192] Wherein, the decoupling layer 100 includes:

[0193] A first decoupling layer 101 provided on the same layer as the feed layer; and / or,

[0194] A second decoupling layer 102 disposed on the same layer as the antenna layer; and / or,

[0195] The third decoupling layer 103 is arranged at a different layer from the feed layer and the antenna layer.

[0196] In this embodiment, the feeding structure is used to feed the current signal, which forms a signal to be radiated in the antenna unit. Due to the deflection of the liquid crystal, the phase of the signal to be radiated is modulated, and the modulated electrical signal is radiated outward through the radiation structure of the antenna layer to form an electromagnetic wave.

[0197] Among them, the antenna layer and the feed layer can be called the functional layers of the antenna device, and the decoupling layer can be arranged at the same layer as at least one of the two functional layers. That is to say, among them, the multiple decoupling layers can include a decoupling layer arranged at the same layer as the functional layer (antenna layer and feed layer), and can also include a decoupling layer arranged at a different layer from the functional layer. For example, the decoupling layer can include a first decoupling layer, or a second decoupling layer, or a third decoupling layer; or, all three are included, or only any two of the three are included.

[0198] In which, when a third decoupling layer is included, the third decoupling layer can be arranged between the feeding layer and the antenna layer to suppress the crosstalk current on the path of the signal from the feeding layer to the antenna layer, thereby improving the quality of the electrical signal fed to the antenna layer and making the signal radiation purer; or, the third decoupling layer can be arranged on one side of the first substrate to suppress the crosstalk current on the back side of the antenna to avoid its influence on the deflection of the liquid crystal, thereby improving the phase accuracy of the radiated wave.

[0199] Among them, when the decoupling layer and the feeding layer are arranged on the same layer, the crosstalk current can be suppressed at the source layer of the crosstalk current, and the suppression force is relatively strong, which can prevent the crosstalk current from spreading to other layers; when the decoupling layer and the antenna layer are arranged on the same layer, the crosstalk current can be suppressed in the output direction of the signal, thereby preventing the crosstalk current flowing to the antenna layer from causing crosstalk to the signal radiation; when both the first decoupling layer and the second decoupling layer are provided, the crosstalk current can be suppressed at the source layer of the crosstalk current, and the crosstalk current flowing to the antenna layer can also be suppressed from causing crosstalk to the signal radiation, and the crosstalk mutual coupling suppression effect is stronger.

[0200] like Figure 9a As shown, the decoupling layer and the feed layer are arranged in the same layer. The first decoupling layer arranged in the same layer as the feed layer can be made in the same layer as the feed layer, that is, in the same layer, there are both a feed structure and a decoupling layer, wherein the decoupling layer can be made of a metal material, a slit pattern is made in the metal material, and the feed structure is also made of a metal material. In one case, the metal material used for the decoupling layer can be the same as or different from the metal material used for the feed structure. The metal material used for the decoupling layer can be made of a metal with good conductivity such as copper, gold, and silver.

[0201] like Figure 9b As shown, the situation where the decoupling layer is arranged in the same layer as the antenna layer is shown. The second decoupling layer arranged in the same layer as the antenna layer can be made in the same layer as the antenna layer, that is, in the same layer, there are both a radiation structure and a decoupling layer, wherein there is a gap between the slit pattern in the decoupling layer and the radiation structure, the decoupling layer can be made of a metal material, a slit pattern is made in the metal material, the radiation structure is also made of a metal material, and there is a gap between the radiation structure and the metal material in the decoupling layer to isolate signal interference. In one case, the metal material used for the decoupling layer can be the same as or different from the metal material used for the radiation structure. Among them, the metal material used for the decoupling layer can be made of metals with good conductivity such as copper, gold, and silver.

[0202] In another example, the antenna unit may include multiple feed layers, which are stacked, and the feed structures in adjacent stacked feed layers have overlapping orthographic projections on the target plane; wherein the slot pattern has no overlap with the orthographic projections of the multiple feed structures of the antenna unit on the decoupling layer, and surrounds the orthographic projections of the multiple feed structures on the decoupling layer.

[0203] In this embodiment, an antenna unit can be composed of multiple feeding layers, and the multiple feeding layers are stacked, and a dielectric material can be placed between each two adjacent feeding layers, wherein the orthographic projections of each two adjacent feeding layers on the decoupling layer overlap, so that the electrical signals fed into the feeding layers can be coupled between the feeding layers. In this case, the slit pattern in the decoupling layer and the orthographic projection of each feeding layer on the decoupling layer do not overlap. For an antenna unit, the orthographic projections of its multiple feeding layers on the decoupling layer can form multiple feeding areas, and the slit pattern in the decoupling layer can surround the multiple feeding areas of an antenna unit. That is, the multiple feeding areas of each antenna unit are surrounded by the slit pattern. In this way, the crosstalk current generated by all feeding structures in each antenna unit can be suppressed by the slit pattern.

[0204] In this example, when the decoupling layer is set at the same layer as the feed layer, it can be set at the same layer as any feed layer among the multiple feed layers; it should be noted that the number of feed layers of each antenna unit can be the same or different.

[0205] As described above, the decoupling layer includes a metal material layer, and at least one gap pattern divides the metal material layer into a plurality of metal material areas; wherein the orthographic projection of the feeding structure on the decoupling layer is located within the metal material area; or, the metal material area is located outside the orthographic projection of the feeding structure on the decoupling layer.

[0206] The metal material of the decoupling layer can be made of metals with good conductivity, such as copper, gold, and silver.

[0207] Among them, when the decoupling layer and the functional layer (antenna layer and feeding layer) are arranged in the same layer, the metal material area of ​​the decoupling layer can be spaced apart from the metal material of the functional layer. For example, when the decoupling layer and the antenna layer are arranged in the same layer, the radiating structure in the antenna layer and the metal material area of ​​the decoupling layer are spaced apart to avoid signal interference. In this case, the orthographic projection of the feeding structure on the decoupling layer overlaps with the radiating structure, and the metal material area can be located outside the orthographic projection of the feeding structure on the decoupling layer. That is to say, the metal material area can enclose the orthographic projection of the feeding structure on the decoupling layer and be spaced apart from the radiating structure.

[0208] For another example, when the decoupling layer and the feeding layer are arranged on the same layer, the feeding structure is spaced apart from the metal material area on the coupling layer, and the feeding structure can be surrounded by the metal material area, that is, the metal material area is located outside the orthographic projection of the feeding structure on the decoupling layer; for example, Figure 7a and Figure 7b As shown, the outer side of the feeding structure may be a metal material area and a gap pattern in sequence.

[0209] For another example, when the decoupling layer and the functional layer are arranged in different layers, the decoupling layer is a separate layer. In this case, the orthographic projection of the feeding structure on the decoupling layer can be located in the metal material area, that is, it can be covered by the metal material area, and the gap pattern is located between the orthographic projections of the feeding structure on the decoupling layer, and has no overlap with the orthographic projection of the feeding structure on the decoupling layer.

[0210] Next, a specific example of the antenna device is given.

[0211] Example E: Figure 9a As shown, the antenna device includes a liquid crystal box, which may include a first substrate 402, an upper metal layer, a liquid crystal layer 404, a lower metal layer 403, and a second substrate 401. The first substrate 402 and the second substrate 401 may both be glass substrates, the upper metal layer is located on a side of the first substrate close to the liquid crystal layer (not shown in the figure), and is used to provide an electric field for the liquid crystal box together with the lower metal layer 403 to drive the liquid crystal to deflect and thus modulate the phase of the electromagnetic wave, and a feeding layer 201 is provided on the side of the second substrate away from the upper metal layer, in which a plurality of feeding structures are arranged in an array, and one feeding structure corresponds to one antenna unit; the lower metal layer may be grounded or provide other electrical properties;

[0212] The invention comprises a decoupling layer, wherein the decoupling layer is arranged at the same layer as the feeding layer, the feeding structure is spaced from the metal material area on the coupling layer, and the feeding structure can be surrounded by the metal material area, that is, the metal material area is located outside the positive projection of the feeding structure on the decoupling layer; wherein the outside of the feeding structure can be the metal material area and the gap pattern in sequence; the gap pattern can be Figure 7a and Figure 7b The slot pattern shown is used to enhance the suppression of crosstalk current generated by the feeding structure arranged on the same layer.

[0213] Example F: Reference Fig.9c As shown, a cross-sectional structural diagram of another antenna device is shown, such as Fig.9c As shown, the antenna device includes a liquid crystal box, and the liquid crystal box may include a first substrate, an upper metal layer, a liquid crystal layer, a lower metal layer, and a second substrate. The first substrate and the second substrate may both be glass substrates, the upper metal layer is located on the side of the first substrate close to the liquid crystal layer (not shown in the figure), and a feeding layer 201 is provided on the side of the second substrate 401 away from the liquid crystal box, and a plurality of feeding structures 200 are arranged in an array in the feeding layer 201, and one feeding structure 200 corresponds to one antenna unit; the lower metal layer may be grounded or provide other electrical properties; a dielectric layer is provided on the side of the feeding layer 201 away from the liquid crystal box, and the dielectric layer 600 may be a flexible circuit board layer, which is used to couple the electromagnetic wave after the phase of the liquid crystal box is modulated to the antenna layer 500, and the antenna layer 500 is provided on the side of the dielectric layer 600 away from the liquid crystal box.

[0214] Wherein, two decoupling layers may be included, which are respectively arranged at the same layer as the antenna layer 500 and the feeding layer 201; the radiating structure in the antenna layer is spaced apart from the metal material area of ​​the second decoupling layer 102 to avoid signal interference; the orthographic projection of the feeding structure 200 on the second decoupling layer 102 overlaps with the radiating structure 501; the metal material area is located outside the orthographic projection of the feeding structure on the second decoupling layer; the metal material area may enclose the orthographic projection of the feeding structure on the second decoupling layer and be spaced apart from the radiating structure. Wherein, the slit pattern of the first decoupling layer may be adopted Figure 7a and Figure 7b The slit pattern shown in the figure, the slit pattern of the second decoupling layer can be Figure 7c The slot pattern shown can enhance the suppression of crosstalk current in the oblique direction of the antenna layer.

[0215] Example G: Reference Figure 9d As shown, a cross-sectional structural diagram of another antenna device is shown, such as Figure 9d As shown, the antenna device includes a liquid crystal box, and the liquid crystal box 400 may include a first substrate 402, an upper metal layer (not shown in the figure), a liquid crystal layer 404, a lower metal layer 403, and a second substrate 401. The first substrate and the second substrate may both be glass substrates, the upper metal layer is located on a side of the second substrate 401 close to the liquid crystal layer, the feed layer is located on a side of the second substrate 401 away from the liquid crystal box, a plurality of feed structures are arrayed in the feed layer, and one feed structure corresponds to one antenna unit; the lower metal layer may be grounded or provide other electrical properties;

[0216] The first decoupling layer and the third decoupling layer are included, and the third decoupling layer is located on the side of the first substrate 402 away from the metal layer 403 under the liquid crystal cell, that is, located on the second side of the liquid crystal cell;

[0217] Among them, the setting of the first decoupling layer can refer to the above examples F and E. The first decoupling layer and the third decoupling layer have different pattern shapes and gap sizes. In this way, the orthographic projection of the first decoupling layer on the target plane can overlap with the orthographic projection of the third decoupling layer on the target plane, or the orthographic projection of the first decoupling layer on the target plane can overlap with the orthographic projection of the third decoupling layer on the target plane.

[0218] The slit pattern of the first decoupling layer may be the pattern of Example F above, and the slit pattern of the third decoupling layer may be the pattern of Example Figure 5e of course, in order to achieve better results, the slit pattern of the third decoupling layer may also be the pattern of example F above.

[0219] Among them, the gap pattern of the first decoupling layer can be different from the gap size of the third decoupling layer. Specifically, the height of the gap pattern of the first decoupling layer (i.e., the thickness of the decoupling layer) can be greater than the height of the gap pattern of the third decoupling layer (i.e., the thickness of the decoupling layer); at the same time, the gap width of the gap pattern of the first decoupling layer can be greater than the gap width of the gap pattern of the third decoupling layer. Thus, the gap height and gap width can be increased on the source layer of the crosstalk current, thereby improving the effect of suppressing the crosstalk current on the source layer.

[0220] Based on the same inventive concept, an embodiment of the present disclosure further provides a communication device, which may include the antenna device described in any of the above embodiments.

[0221] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0222] Finally, 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 a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. 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, commodity or device including the elements.

[0223] The above is a detailed introduction to an antenna device and a communication device provided by the present disclosure. Specific examples are used in this article to illustrate the principles and implementation methods of the present disclosure. The description of the above embodiments is only used to help understand the method of the present disclosure and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present disclosure, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present disclosure.

[0224] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0225] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

[0226] References herein to "one embodiment," "embodiment," or "one or more embodiments" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present disclosure. In addition, please note that examples of the term "in one embodiment" do not necessarily all refer to the same embodiment.

[0227] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present disclosure can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0228] In the claims, any reference signs placed between brackets shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present disclosure may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0229] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. An antenna device, characterized in that: include: A plurality of antenna units, each of the antenna units comprising a feeding structure, the feeding structure being used to feed an electrical signal into the antenna unit; A decoupling layer, wherein the decoupling layer comprises at least one slot pattern, and the orthographic projection of the feeding structure on the decoupling layer has no overlap with the slot pattern; Part or all of the slit pattern is located between the orthographic projections of adjacent feeding structures on the decoupling layer, and / or between the orthographic projection of the feeding structure on the decoupling layer and the edge of the decoupling layer.

2. The antenna device according to claim 1, characterized in that The antenna device further comprises: A liquid crystal box, wherein a liquid crystal is arranged in the liquid crystal box, and a plurality of the antenna units are formed on one side of the liquid crystal; Wherein, the decoupling layer is formed on the same side of the liquid crystal box, or the decoupling layers are formed on different sides of the liquid crystal box.

3. The antenna device according to claim 2, characterized in that The liquid crystal box comprises a first substrate and a second substrate, and the liquid crystal is located between the first substrate and the second substrate; Wherein, the antenna unit comprises: A feeding layer is arranged on one side of the second substrate, and the feeding structure is arranged in the feeding layer; An antenna layer, arranged on a side of the feed layer away from the liquid crystal box; Wherein, the decoupling layer comprises: a first decoupling layer provided on the same layer as the feed layer; and / or, a second decoupling layer provided at the same layer as the antenna layer; and / or, A third decoupling layer is arranged at a different layer from the feed layer and the antenna layer.

4. The antenna device according to claim 3, characterized in that: The antenna unit comprises a plurality of the feed layers, the plurality of the feed layers are stacked, and the orthographic projections of the feed structures in adjacent stacked feed layers on the decoupling layer overlap; The slot pattern has no overlap with the orthographic projections of the multiple feeding structures of the antenna unit on the decoupling layer, and surrounds the orthographic projections of the multiple feeding structures on the decoupling layer.

5. The antenna device according to claim 1, characterized in that: The size of the slit pattern in the normal direction of the decoupling layer is 10 μm to 50 μm.

6. The antenna device according to claim 1, characterized in that: The slit width of the slit pattern is 0.05 mm to 0.5 mm.

7. The antenna device according to claim 1, characterized in that: comprising a plurality of the decoupling layers, wherein the plurality of the decoupling layers are arranged in different layers; The slit patterns of the plurality of decoupling layers are different in pattern shape and / or slit size, and the slit size includes at least one of a slit width, a slit length, and a size of the slit in a normal direction of the decoupling layer.

8. The antenna device according to claim 1, characterized in that The decoupling layer includes a metal material layer, and the at least one slit pattern divides the metal material layer into a plurality of metal material areas; The orthographic projection of the feeding structure on the decoupling layer is located within the metal material area; or the metal material area is located outside the orthographic projection of the feeding structure on the decoupling layer.

9. The antenna device according to claim 1, characterized in that: The slit pattern includes a bending slit, and the bending slit has at least one bending area; The at least one bending zone includes a bending zone located between the gaps between the orthographic projections of two adjacent feeding structures on the decoupling layer, and / or a bending zone located between the orthographic projection of the feeding structure on the decoupling layer and an edge of the decoupling layer.

10. The antenna device according to claim 9, characterized in that: The bending gap includes a straight gap and a bending area connecting the straight gap; Wherein, the linear gap is located between the orthographic projections of the feeding structures adjacent in the first direction on the decoupling layer; the bending area is located between the orthographic projections of the feeding structures adjacent in the second direction on the decoupling layer; The first direction and the second direction are the same or different.

11. The antenna device according to claim 10, characterized in that: The first direction and the second direction are different, and there is at least a pair of first feeding structures and second feeding structures adjacent to each other in the second direction; There are a plurality of bending regions between the orthographic projections of the first feeding structure and the second feeding structure on the decoupling layer.

12. The antenna device according to claim 10, characterized in that: The slit pattern further includes: A first hollow gap is connected to two adjacent bending areas and is located between the orthographic projections of adjacent feeding structures in the first direction on the decoupling layer; The first hollow gap is spaced apart from the straight gap and has no overlap with the orthographic projection of the feeding structure on the decoupling layer.

13. The antenna device according to claim 10, characterized in that: The first direction is different from the second direction, and the bending area and the straight line gap are transitioned through a second hollow gap; wherein the angle between the second hollow gap and the straight line gap is greater than 90 degrees.

14. The antenna device according to claim 10, characterized in that: The slot pattern further includes at least one third hollow slot, wherein the third hollow slot is located between orthographic projections of adjacent feeding structures in the third direction on the decoupling layer. The third direction is different from the first direction.

15. The antenna device according to claim 14, characterized in that: It comprises a plurality of the slit patterns, wherein the plurality of the slit patterns comprise at least one pair of adjacent first slit patterns and second slit patterns, and the third hollow slit on the first slit pattern is connected to the third hollow slit on the second slit pattern.

16. The antenna device according to any one of claims 9 to 15, characterized in that: The decoupling layer includes a plurality of the slit patterns, and the plurality of the slit patterns include at least one pair of adjacent first slit patterns and second slit patterns; Wherein, an orthographic projection of at least one of the feeding structures on the decoupling layer is located in a region defined by the first slit pattern and the second slit pattern.

17. The antenna device according to claim 16, characterized in that: The first slit pattern and the second slit pattern are axisymmetric.

18. The antenna device according to any one of claims 9 to 15, characterized in that: The slot pattern includes a plurality of closed slots, and one of the closed slots encloses an orthographic projection of the feeding structure on the decoupling layer.

19. The antenna device according to any one of claims 9 to 13, characterized in that: The orthographic projection of the bending area on the target plane includes at least one of a cross shape, an arc shape, a triangle shape, and a wave shape.

20. A communication device, characterized in that: Comprising the antenna device described in any one of claims 1-19.

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