CN117525914A - Antenna array, manufacturing method thereof and electronic equipment - Google Patents

Abstract

An antenna array, comprising: a plurality of antenna sub-arrays spliced. The antenna subarray includes: the first substrate and the second substrate are arranged oppositely, and the adjustable dielectric layer is arranged between the first substrate and the second substrate. The overlapping area of the first substrate, the second substrate and the tunable dielectric layer forms an antenna area. The first substrate has a first stepped region located on one side of the antenna region in a first direction, and the second substrate has a second stepped region located on one side of the antenna region in a second direction. The included angle between the first direction and the second direction is more than 0 degrees and less than or equal to 180 degrees. The polarization directions of at least two antenna sub-arrays are different, and the antenna areas of at least two antenna sub-arrays with a splicing relationship are adjacent.

Description

Antenna array, manufacturing method thereof and electronic equipment

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to an antenna array, a manufacturing method thereof, and an electronic device.

Background

With the development of communication technology, the variety of antennas is increasing, and the liquid crystal phased array antenna is one of the important research and development directions in the wireless communication field at present. The liquid crystal phased array antenna is an antenna which utilizes dielectric anisotropy of liquid crystal, provides deflection voltage to the upper side and the lower side of a liquid crystal layer through a transmission line, controls the deflection direction of the liquid crystal to change the phase shift of a phase shifter, and adjusts the alignment direction of the phased array antenna.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The embodiment of the disclosure provides an antenna array, a preparation method thereof and electronic equipment.

In one aspect, an embodiment of the present disclosure provides an antenna array, including: a plurality of antenna sub-arrays spliced. The antenna subarray includes: the first substrate and the second substrate are arranged oppositely, and the adjustable dielectric layer is arranged between the first substrate and the second substrate. The overlapping area of the first substrate, the second substrate and the tunable dielectric layer forms an antenna area. The first substrate has a first stepped region located on one side of the antenna region in a first direction, and the second substrate has a second stepped region located on one side of the antenna region in a second direction. The included angle between the first direction and the second direction is more than 0 degrees and less than or equal to 180 degrees. At least two antenna subarrays of the plurality of antenna subarrays have different polarization directions, and antenna areas of the at least two antenna subarrays with a splicing relationship are adjacent.

In some exemplary embodiments, the plurality of antenna sub-arrays includes at least: the antenna comprises two first antenna subarrays and two second antenna subarrays, wherein the two first antenna subarrays and the two second antenna subarrays are spliced in a 2 x 2 array mode, the two first antenna subarrays are diagonally arranged, the two second antenna subarrays are diagonally arranged, and the polarization direction of the first antenna subarrays is different from that of the second antenna subarrays.

In some exemplary embodiments, the polarization direction of the first antenna sub-array is 90 degrees different from the polarization direction of the second antenna sub-array.

In some exemplary embodiments, the first antenna sub-array and the second antenna sub-array are each rectangular.

In some exemplary embodiments, the first stepped region of the first antenna sub-array is located on one side of the antenna region along the first direction, and the second stepped region is located on one side of the antenna region along the second direction; the first step of the second antenna subarray is located at one side of the antenna area along the first direction, and the second step area is located at one side of the antenna area along the second direction, wherein the first direction is perpendicular to the second direction.

In some exemplary embodiments, the plurality of antenna sub-arrays further comprises: at least one third antenna sub-array; an antenna region of the third antenna sub-array is adjacent to the first or second stepped regions of the first and second antenna sub-arrays. The first step region of the third antenna sub-array is located on one side of the antenna area along the first direction, the second step region is located on one side of the antenna area along the second direction, and the first direction is parallel to the second direction.

In some exemplary embodiments, the plurality of antenna sub-arrays are sequentially spliced along a third direction, and antenna areas of adjacent antenna sub-arrays having a spliced relationship are adjacent; the third direction intersects the first direction; the first direction is parallel to the second direction.

In some exemplary embodiments, the antenna areas of the plurality of antenna sub-arrays are arranged continuously along the third direction, the first stepped regions of the plurality of antenna sub-arrays are located on the same side of the antenna area in the first direction, and the second stepped regions of the plurality of antenna sub-arrays are located on the same side of the antenna area in the second direction.

In some exemplary embodiments, the antenna sub-array includes a plurality of antenna elements. The spacing between adjacent antenna elements of two antenna sub-arrays having a stitching relationship at the stitching location is between 0.5 and 2 element periods.

In some exemplary embodiments, the thickness of the antenna array is the same as the thickness of the antenna sub-array.

In some exemplary embodiments, the antenna sub-array includes a plurality of antenna elements. There is overlap in the antenna areas of the two antenna sub-arrays having a tiled relationship, the antenna elements of the two antenna sub-arrays not overlapping.

In some exemplary embodiments, the first substrate includes at least: the device comprises a first substrate, a first driving electrode and a first driving wire which are positioned on one side of the first substrate close to the adjustable dielectric layer, and a first radiation electrode which is positioned on one side of the first substrate far away from the adjustable dielectric layer; the first drive trace is electrically connected to the first drive electrode and configured to provide a first drive signal to the first drive electrode. The second substrate includes at least: the second substrate, a second driving electrode and a second driving wire which are positioned on one side of the second substrate close to the adjustable dielectric layer, and a shielding electrode which is positioned on one side of the second substrate far away from the adjustable dielectric layer; the second driving wire is electrically connected with the second driving electrode and is configured to provide a second driving signal for the second driving electrode.

In some exemplary embodiments, the first substrate includes at least: the device comprises a first substrate, a first driving electrode and a first driving wire which are positioned on one side of the first substrate close to the adjustable dielectric layer, and a first radiation electrode which is positioned on one side of the first substrate far away from the adjustable dielectric layer; the first drive trace is electrically connected to the first drive electrode and configured to provide a first drive signal to the first drive electrode. The second substrate includes at least: the second substrate, the second driving electrode and the second driving wiring which are positioned on one side of the second substrate close to the adjustable dielectric layer, and the second radiation electrode which is positioned on one side of the second substrate far away from the adjustable dielectric layer; the second driving wire is electrically connected with the second driving electrode and is configured to provide a second driving signal for the second driving electrode.

In another aspect, embodiments of the present disclosure provide an electronic device comprising an antenna array as described above.

In another aspect, an embodiment of the present disclosure provides a method for manufacturing an antenna array, including: preparing a plurality of antenna sub-arrays; the plurality of antenna sub-arrays are tiled within a frame. The antenna sub-array includes: the first substrate and the second substrate are oppositely arranged, and the adjustable dielectric layer is positioned between the first substrate and the second substrate; the overlapping areas of the first substrate, the second substrate and the adjustable dielectric layer form an antenna area; the first substrate is provided with a first step area which is positioned at one side of the antenna area along a first direction, the second substrate is provided with a second step area which is positioned at one side of the antenna area along a second direction, and an included angle between the first direction and the second direction is larger than 0 degree and smaller than or equal to 180 degrees. The polarization directions of at least two antenna sub-arrays of the plurality of antenna sub-arrays are different. The antenna areas of at least two antenna sub-arrays having a stitching relationship are adjacent.

Other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain, without limitation, the embodiments of the disclosure. The shape and size of one or more of the components in the drawings do not reflect true proportions, and are intended to illustrate the disclosure only.

Fig. 1 is a schematic diagram of an antenna sub-array according to at least one embodiment of the present disclosure;

fig. 2 is a schematic diagram of another antenna sub-array in accordance with at least one embodiment of the present disclosure;

fig. 3 is a schematic cross-sectional view of an antenna sub-array according to at least one embodiment of the present disclosure;

fig. 4 is another cross-sectional schematic view of an antenna sub-array according to at least one embodiment of the present disclosure;

fig. 5 is a schematic diagram of an antenna array in accordance with at least one embodiment of the present disclosure;

fig. 6 is a schematic diagram of a stitching of antenna sub-arrays according to at least one embodiment of the present disclosure;

fig. 7 is another schematic diagram of an antenna array in accordance with at least one embodiment of the present disclosure;

fig. 8 is another schematic diagram of a stitching of an antenna sub-array in accordance with at least one embodiment of the present disclosure;

fig. 9 is another schematic diagram of an antenna array in accordance with at least one embodiment of the present disclosure;

fig. 10 is another schematic diagram of an antenna array in accordance with at least one embodiment of the present disclosure;

fig. 11 is another schematic diagram of an antenna array in accordance with at least one embodiment of the present disclosure;

fig. 12 is a schematic diagram of a tiled cross-section of an antenna sub-array in accordance with at least one embodiment of the present disclosure;

fig. 13 is a schematic diagram of a stitching of antenna sub-arrays according to at least one embodiment of the present disclosure;

FIG. 14 is a schematic diagram of an electronic device in accordance with at least one embodiment of the present disclosure;

FIG. 15 is a schematic plan view of an electronic device in accordance with at least one embodiment of the present disclosure;

fig. 16 is a schematic partial cross-sectional view taken along the direction P-P' in fig. 15.

Detailed Description

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Embodiments may be implemented in a number of different forms. One of ordinary skill in the art will readily recognize the fact that the patterns and matters may be changed into one or more forms without departing from the spirit and scope of the present disclosure. Accordingly, the present disclosure should not be construed as being limited to the following description of the embodiments. Embodiments of the present disclosure and features of embodiments may be combined with each other arbitrarily without conflict.

In the drawings, the size of one or more constituent elements, thicknesses of layers or regions may be exaggerated for clarity. Accordingly, one aspect of the present disclosure is not necessarily limited to this dimension, and the shapes and sizes of the various components in the drawings do not reflect actual proportions. Further, the drawings schematically show ideal examples, and one mode of the present disclosure is not limited to the shapes or numerical values shown in the drawings, and the like.

The ordinal terms such as "first," "second," "third," and the like in the present disclosure are provided to avoid intermixing of constituent elements, and are not intended to be limiting in number. The term "plurality" in this disclosure means two or more than two numbers.

In the present disclosure, for convenience, terms such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are used to describe positional relationships of the constituent elements with reference to the drawings, only for convenience in describing the present specification and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction in which the constituent elements are described. Therefore, the present invention is not limited to the words described in the specification, and may be appropriately replaced according to circumstances.

In this disclosure, the terms "mounted," "connected," and "connected" are to be construed broadly, unless otherwise specifically indicated and defined. For example, it may be a fixed connection, a removable connection, or an integral connection; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intermediate members, or may be in communication with the interior of two elements. The meaning of the above terms in the present disclosure can be understood by one of ordinary skill in the art as appropriate.

In this disclosure, "electrically connected" includes a case where constituent elements are connected together by an element having some electric action. The "element having a certain electric action" is not particularly limited as long as it can transmit and receive an electric signal between the constituent elements connected. Examples of the "element having some electric action" include not only an electrode and a wiring but also a switching element such as a transistor, a resistor, an inductor, a capacitor, other elements having one or more functions, and the like.

In the present disclosure, "parallel" refers to a state in which two straight lines form an angle of-10 ° or more and 10 ° or less, and thus, may include a state in which the angle is-5 ° or more and 5 ° or less. Further, "vertical" refers to a state in which an angle formed by two straight lines is 80 ° or more and 100 ° or less, and thus may include a state in which an angle is 85 ° or more and 95 ° or less.

The term "about" in this disclosure refers to values that are not strictly limited to the limits, but are allowed to fall within the limits of the process and measurement errors.

The antenna array can radiate electromagnetic waves to the surrounding space, the electromagnetic waves consist of an electric field and a magnetic field, and the direction of the intensity of the electric field is the polarization direction of the antenna. When the electric field strength direction is perpendicular to the ground, the electromagnetic wave is called a vertically polarized electromagnetic wave; when the electric field strength direction is parallel to the ground, this electromagnetic wave is called a horizontally polarized electromagnetic wave. The plane formed by the polarization direction of the polarized electromagnetic wave and the propagation direction of the electromagnetic wave is called a polarization plane. If the electric field strength of polarized electromagnetic waves always faces in a (transverse) plane perpendicular to the propagation direction, the end point of the electric field vector thereof moves along a closed trajectory, this polarized electromagnetic wave is called a plane polarized wave. The trajectory of the end of the electric field is called the polarization curve and the polarized wave is named according to the shape of the polarization curve. If the trajectory (polarization curve) is a straight line, it is called linear polarization, and if the trajectory (polarization curve) is a circle, it is called circular polarization; if the trajectory (polarization curve) is elliptical, it is called elliptical polarization.

In some implementations, the liquid crystal antenna based on the liquid crystal display panel (LCD, liquid Crystal Display) process can take advantage of the high processing accuracy of the semiconductor process, and can be better applied to high-frequency antennas. The high-frequency dielectric characteristic of the liquid crystal material can be changed along with the change of the loading voltage, and the phase difference of the input and output ports can be adjusted for the microstrip lines with the same length. In the fabrication of large-sized antenna arrays, it is necessary to implement by sub-array tiling. There are certain limitations on the size of the sub-arrays in view of process compatibility and cost. In addition, in the process of manufacturing the antenna array with a large size, the performance of the antenna array is easily affected due to process limitations, resulting in deterioration of the performance of the antenna array.

An embodiment of the present disclosure provides an antenna array, including: a plurality of antenna sub-arrays spliced. The antenna subarray includes: the first substrate and the second substrate are arranged oppositely, and the adjustable dielectric layer is arranged between the first substrate and the second substrate. The overlapping area of the first substrate, the second substrate and the tunable dielectric layer forms an antenna area. The first substrate is provided with a first step area positioned on one side of the antenna area along a first direction, the second substrate is provided with a second step area positioned on one side of the antenna area along a second direction, and an included angle between the first direction and the second direction is more than 0 degree and less than or equal to 180 degrees. At least two antenna subarrays of the plurality of antenna subarrays have different polarization directions, and antenna areas of the at least two antenna subarrays with a splicing relationship are adjacent.

In this example, the antenna areas of the two antenna sub-arrays are adjacent, meaning that there are no other elements or devices between the antenna areas of the two antenna sub-arrays, and the edges of the antenna areas of the two antenna sub-arrays may be in direct contact or there may be a gap.

In this example, the polarization direction of the antenna sub-array refers to the polarization direction of the antenna sub-array before the antenna sub-array is spliced in the initial state, and the polarization direction of the antenna sub-array changes after the antenna sub-array is rotated in the splicing process.

In this example, the dielectric constant of the tunable dielectric layer between the first substrate and the second substrate is variable. For example, the tunable dielectric layer may be a liquid crystal material that deflects under an electric field formed by the drive electrodes of the first and second substrates such that the dielectric constant of the liquid crystal material changes.

The antenna array provided by the embodiment can be formed by splicing a plurality of antenna sub-arrays, and the antenna areas of the antenna sub-arrays with the splicing relationship are adjacent, so that the tight splicing of the antenna sub-arrays can be realized, the influence of process limitation on the overall performance of the antenna array can be reduced, and the overall gain of the antenna array obtained by splicing is improved. In addition, the polarization of the corresponding area of the antenna array can be ensured to meet the design requirement by being compatible with the polarization direction of the antenna sub-array. For example, a linearly polarized or circularly polarized antenna array may be implemented by antenna sub-array stitching.

In some exemplary embodiments, the first direction may be perpendicular to the second direction. That is, the angle between the first direction and the second direction may be 90 degrees. In this example, the first substrate and the second substrate of the at least one antenna sub-array may be vertically aligned such that directions in which the first step region and the second step region are located are perpendicular to each other. In other examples, the first direction may be parallel to the second direction. For example, the angle between the first direction and the second direction may be 180 degrees. In this example, the first substrate and the second substrate of the at least one antenna sub-array may be horizontally arranged such that directions in which the first step region and the second step region are located may be parallel to each other.

In some exemplary embodiments, the plurality of antenna sub-arrays may include: two first antenna sub-arrays and two second antenna sub-arrays. The two first antenna subarrays and the two second antenna subarrays are spliced in a 2 x 2 array mode, wherein the two first antenna subarrays are diagonally arranged, and the two second antenna subarrays are diagonally arranged; the antenna areas of adjacent antenna sub-arrays having a stitching relationship are adjacent. In some examples, the polarization direction of the first antenna sub-array may be different from the polarization direction of the second antenna sub-array. For example, the polarization direction of the first antenna sub-array may differ from the polarization direction of the second antenna sub-array by 90 degrees. The present example can implement a linearly polarized antenna array by four antenna sub-array tiling.

In some exemplary embodiments, the plurality of antenna sub-arrays may be sequentially spliced along the third direction, and the antenna areas of adjacent antenna sub-arrays having a spliced relationship are adjacent. The third direction intersects the first direction, and the first direction may be parallel to the second direction. For example, the third direction may be perpendicular to the first direction. The present example may implement a linearly polarized antenna array by multiple antenna sub-array tiling.

In some example embodiments, the antenna sub-array may include a plurality of antenna elements. The spacing between adjacent antenna elements of two antenna sub-arrays having a stitching relationship at the stitching location may be 0.5 to 2 element periods, for example may be 1 element period. That is, the spacing between the center point of one antenna element of one antenna sub-array having a stitching relationship that is closest to the stitching seam and the center point of one antenna element of the other antenna sub-array that is closest to the stitching seam may be 0.5 to 2 element periods. In the present disclosure, the distance between the center positions of adjacent two antenna elements of the antenna sub-array may be 1 element period. When the antenna subarrays of the embodiment are spliced, the first step area and the second step area face outwards, and the antenna areas are spliced adjacently, so that the splicing gap between the antenna subarrays is reduced, and the performance influence on the antenna arrays is reduced.

In some exemplary embodiments, there may be overlap of antenna areas of two antenna sub-arrays having a tiled relationship, and the antenna elements of the two antenna sub-arrays may not overlap. This example is advantageous for reducing the splice gap between the antenna sub-arrays by stacking the spliced antenna sub-arrays.

The scheme of the present embodiment is illustrated by some examples below.

Fig. 1 is a schematic diagram of an antenna sub-array according to at least one embodiment of the present disclosure. In some examples, as shown in fig. 1, the antenna sub-array may include: an antenna region 130, a first step region 110 located at one side of the antenna region 130 along a first direction D1, and a second step region 120 located at one side of the antenna region 130 along a second direction D2. For example, the first step region 110 and the second step region 120 may not overlap. In this example, the first direction D1 may be perpendicular to the second direction D2, i.e. the angle between the first direction D1 and the second direction D2 may be 90 degrees.

In some examples, as shown in fig. 1, the antenna sub-array may include: first substrate 11 and second substrate 12, and an tunable dielectric layer disposed between first substrate 11 and second substrate 12. For example, the tunable dielectric layer may be a liquid crystal or a photosensitive dielectric material. In the following examples, the tunable dielectric layer is described using a liquid crystal material as an example.

In some examples, as shown in fig. 1, the first substrate 11 and the second substrate 12 may be disposed opposite to each other, and the opposite regions of the first substrate 11 and the second substrate 12 together form an antenna region 130. For example, the first substrate 11 may have a first body region 111 and a first step region 110 located at one side of the first body region 111 in the first direction D1, and the second substrate 12 may have a second body region 121 and a second step region 120 located at one side of the second body region 121 in the second direction D2. The first body region 111, the second body region 121, and the tunable dielectric layer may overlap to form an antenna region 130. The shape of the first body region 111 and the second body region 121 may be the same. The first step region 110 may be a portion of the first substrate 11 protruding from the antenna region 130, and the second step region 120 may be a portion of the second substrate 12 protruding from the antenna region 130. In some examples, the first substrate 11 and the second substrate 12 may each be rectangular, and the shape and size of the first substrate 11 and the second substrate 12 may be substantially the same.

In some examples, as shown in fig. 1, the antenna region 130 of the antenna sub-array may be provided with a plurality of antenna elements 13. The plurality of antenna elements 13 may be regularly arranged, for example, in an array, in the antenna region 130. The polarization directions of the plurality of antenna elements 13 may be uniform.

Fig. 2 is a schematic diagram of another antenna sub-array according to at least one embodiment of the present disclosure. In some examples, as shown in fig. 2, the first direction D1 and the second direction D2 may be opposite directions to each other. For example, the angle between the first direction D1 and the second direction D2 may be 180 degrees. In this example, the first substrate 11 and the second substrate 12 are horizontally aligned, and there may be a misalignment of the first substrate 11 and the second substrate 12 in the first direction D1. The rest of the antenna sub-array of the present embodiment can be referred to the description of the foregoing embodiments, so that the description thereof is omitted.

Fig. 3 is a schematic cross-sectional view of an antenna sub-array according to at least one embodiment of the present disclosure. In some examples, as shown in fig. 3, the antenna sub-array may include: a first substrate 11, a second substrate 12, and an adjustable dielectric layer 30 disposed between the first substrate 11 and the second substrate 12. The first substrate 11 may include: the tunable dielectric layer 30 comprises a first substrate 100, a plurality of first radiation electrodes 101 positioned on one side of the first substrate 100 away from the tunable dielectric layer 30, a plurality of first drive electrodes 102 positioned on one side of the first substrate 100 close to the tunable dielectric layer 30, and a first drive trace 103. The first driving trace 103 may be electrically connected with the first driving electrode 102. The first driving trace 103 may extend to the first step region so as to be electrically connected with the first driving circuit. The first driving trace 103 may be configured to transmit a first driving signal to the first driving electrode 102.

In some examples, as shown in fig. 3, the second substrate 12 may include: the device comprises a second substrate 200, a plurality of second driving electrodes 201 and second driving wires 202 which are positioned on one side of the second substrate 200 close to the tunable dielectric layer 30, and a shielding electrode 203 which is positioned on one side of the second substrate 200 far from the tunable dielectric layer 30. The second driving trace 202 may be electrically connected with the second driving electrode 201. The second driving trace 202 may extend to the second step region so as to be electrically connected to the second driving circuit. The second driving trace 202 may be configured to transmit a second driving signal to the second driving electrode 201. The shielding electrode 203 may cover a surface of the second substrate 200 on a side away from the tunable dielectric layer 30, and the shielding electrode 203 may be grounded.

In some examples, one antenna element may include at least: the first radiation electrode 101, the phase shift unit, and the shielding electrode are disposed on the side of the first substrate 100 away from the tunable dielectric layer 30, and on the side of the second substrate 200 away from the tunable dielectric layer 30. The mobile unit may include: the first driving electrode 102 is located on one side of the first substrate 100 close to the tunable dielectric layer 30, the second driving electrode 201 is located on one side of the second substrate 200 close to the tunable dielectric layer 30, and the tunable dielectric layer 30 is disposed between the first driving electrode 102 and the second driving electrode 201. There may be overlap of the front projections of the first driving electrode 102 and the second driving electrode 201 of the phase shift unit on the first substrate 100. Taking the adjustable dielectric layer 30 as a liquid crystal material for example, the liquid crystal material can deflect under the action of an electric field formed by the first driving electrode 102 and the second driving electrode 201, so that the dielectric constant of the liquid crystal material changes, and the radio frequency signal transmitted by the first radiation electrode 101 is phase-shifted.

In some examples, as shown in fig. 3, after the radio frequency signal is received by the first radiation electrode 101 of the antenna unit, the radio frequency signal may be phase-shifted by the phase-shifting unit, reflected by the shielding electrode 203, and then re-radiated by the first radiation electrode 101. The antenna sub-array shown in this example may be referred to as a reflective antenna sub-array. The shielding electrode of the reflective antenna sub-array has a shielding effect, so that the setting position of the driving circuit can be adjusted, and the design flexibility can be improved.

In some examples, as shown in fig. 3, the first substrate 100 and the second substrate 200 may be rigid plates, or may be flexible plates. For example, the first substrate 100 and the second substrate 200 may be glass substrates, polyimide (PI) substrates, or liquid crystal polymer (LCP, liquid Crystal Polymer) substrates. However, the present embodiment is not limited thereto.

In some examples, the first substrate 11 may further include: a first feed trace on a side of the first substrate 100 remote from the tunable dielectric layer 30. The first feed trace may be coupled to the first radiating electrode 101. The first feed trace may be electrically connected to a radio frequency signal terminal, which may be configured to provide a radio frequency signal for transmission by the antenna element, or may transmit a radio frequency signal received by the antenna element.

Fig. 4 is another cross-sectional schematic diagram of an antenna sub-array in accordance with at least one embodiment of the present disclosure. In some examples, as shown in fig. 4, the first substrate 11 may include: the tunable dielectric layer 30 comprises a first substrate 100, a plurality of first radiation electrodes 101 positioned on one side of the first substrate 100 away from the tunable dielectric layer 30, a plurality of first drive electrodes 102 positioned on one side of the first substrate 100 close to the tunable dielectric layer 30, and a first drive trace 103. The second substrate 12 may include: the tunable dielectric layer 30 comprises a second substrate 200, a plurality of second driving electrodes 201 and second driving wires 202 positioned on one side of the second substrate 200 close to the tunable dielectric layer 30, and a second radiation electrode 204 positioned on one side of the second substrate 200 far from the tunable dielectric layer 30.

In some examples, as shown in fig. 4, one antenna element may include: the first radiation electrode 101 located on the side of the first substrate 100 away from the tunable dielectric layer 30, the phase shift unit, and the second radiation electrode 204 located on the side of the second substrate 200 away from the tunable dielectric layer 30. After the first radiation electrode 101 of the antenna unit receives the radio frequency signal, the radio frequency signal may be phase-shifted by the phase-shifting unit and then radiated to the lower side through the second radiation electrode 204. The antenna sub-array shown in this example may be referred to as a transmissive antenna sub-array.

In some examples, as shown in fig. 1-4, the first drive trace 103 may extend to the first stepped region 110 to be configured to electrically connect with a first drive circuit, and the second drive trace 202 may extend to the second stepped region 120 to be configured to electrically connect with a second drive circuit. The first and second stepped regions 110 and 120 may be configured to supply driving signals to the first driving electrode 102 of the first substrate 11 and the second driving electrode 201 of the second substrate 12, respectively. One antenna sub-array may include at least two stepped regions.

The antenna sub-array in the following embodiment may have a structure as shown in fig. 3 or fig. 4, and the present embodiment is not limited thereto.

Fig. 5 is a schematic diagram of an antenna array according to at least one embodiment of the present disclosure. In some examples, as shown in fig. 5, the antenna array of the present example may include: two first antenna sub-arrays 31 and two second antenna sub-arrays 32. The two first antenna sub-arrays 31 and the two second antenna sub-arrays 32 may be spliced in a 2 x 2 array manner. The two first antenna sub-arrays 31 may be disposed diagonally and the two second antenna sub-arrays 32 may be disposed diagonally. The antenna areas of adjacent antenna sub-arrays having a stitching relationship may be adjacent. There may be direct contact or gaps between adjacent antenna sub-arrays. The first antenna sub-array 31 and the second antenna sub-array 32 may each be rectangular, for example, may be square.

The four antenna sub-arrays of the present example may have a structure as shown in fig. 1, and the first substrate 11 and the second substrate 12 of each antenna sub-array may be vertically arranged. Each antenna subarray has a spliced relationship with the other two antenna subarrays. The center of the four antenna sub-arrays after being spliced may be the center of the antenna area of the antenna array, and the first step area 110 and the second step area 120 of the four antenna sub-arrays may surround the periphery of the antenna area of the antenna array. For example, the second step region 120 may be located at opposite sides of the antenna region in the first direction D1, and the first step region 110 may be located at opposite sides of the antenna region in the second direction D2.

In some examples, as shown in fig. 5, the first drive trace of one first antenna sub-array 31 may be routed from the upper side of the antenna area along the second direction D2, and the second drive trace may be routed from the left side of the antenna area along the first direction D1; the first driving trace of the further first antenna sub-array 31 may lead from the lower side of the antenna area in the second direction D2 and the second driving trace may lead from the right side of the antenna area in the first direction D1. The first driving trace of one second antenna sub-array 32 may be led out from the upper side of the antenna area along the second direction D2, and the second driving trace may be led out from the right side of the antenna area along the first direction D1; the first drive trace of the other second antenna subarray 32 may lead from the underside of the antenna area in the second direction D2 and the second drive trace may lead from the left side of the antenna area in the first direction D1. The four antenna sub-arrays may be independently controlled and may correspondingly receive respective first and second drive signals.

In some examples, as shown in fig. 5, the first antenna sub-array 31 may include a plurality of first antenna elements 31a, and the second antenna sub-array 32 may include a plurality of second antenna elements 31b. The polarization directions of the plurality of first antenna elements 31a may be identical, and the polarization directions of the plurality of second antenna elements 31b may be identical. The polarization direction of the first antenna element 31a and the polarization direction of the second antenna element 31b are different. For example, the polarization direction of the first antenna element 31a may differ from the polarization direction of the second antenna element 31b by 90 degrees. After the first antenna sub-array 31 and the second antenna sub-array 32 are rotationally spliced, a linearly polarized antenna array can be obtained. The first antenna sub-array 31 and the second antenna sub-array 32 may be spliced into an antenna array to obtain a linearly polarized antenna array.

In some examples, as shown in fig. 5, the spacing between adjacent antenna elements at the splice location of the first antenna sub-array 31 and the second antenna sub-array 32 in the first direction D1 (i.e., the spacing between the center point of one first antenna element 31a of the first antenna sub-array 31 closest to the splice seam and the center point of one second antenna element 31b of the second antenna sub-array 32 closest to the splice seam) may be L2. The spacing between adjacent antenna elements at the splice location of the first antenna sub-array 31 and the second antenna sub-array 32 in the second direction D2 (i.e., the spacing between the center point of one of the first antenna elements 31a of the first antenna sub-array 31 closest to the splice seam and the center point of one of the second antenna elements 31b of the second antenna sub-array 32 closest to the splice seam) may be L3. For example, L2 may be equal to L3. L2 and L3 may be 0.5 to 2 unit cycles, for example, may be 1 unit cycle.

In some examples, as shown in fig. 5, there is no overlap between adjacent antenna sub-arrays, and the thickness of the spliced antenna array is consistent with the thickness of the antenna sub-array, without introducing additional thickness increase.

The step area of this example does not arrange between four antenna subarrays, can realize less concatenation clearance, effectively reduces the interval between the adjacent antenna subarrays to reduce the influence to the wholeness ability, improve the antenna overall gain.

Fig. 6 is a schematic diagram illustrating the splicing of antenna sub-arrays according to at least one embodiment of the present disclosure. In some examples, as shown in fig. 6, after preparing a plurality of antenna sub-arrays, the plurality of antenna sub-arrays (including first antenna sub-array 31 and second antenna sub-array 32) may be spliced using frame 60. For example, the frame 60 may be a square solid frame. The plurality of antenna sub-arrays may be disposed in the frame 60 by plugging or adhesive fixing, etc., so as to be spliced to form an antenna array. The fixing manner of the antenna sub-array on the frame in this embodiment is not limited.

Fig. 7 is another schematic diagram of an antenna array in accordance with at least one embodiment of the present disclosure. In some examples, as shown in fig. 7, the antenna array of the present example may include a plurality of tiled antenna sub-arrays 10. The plurality of antenna sub-arrays 10 may be sequentially spliced along the third direction D3. Adjacent antenna sub-arrays 10 may be in direct contact or there may be some gaps. The present embodiment is not limited to the number of antenna sub-arrays arranged in the third direction D3. This example may be applicable to scenes where the demand for the array plane lateral units is large.

In some examples, the structure of the multiple antenna sub-arrays 10 of the present example may be as shown in fig. 2. The first substrate 11 and the second substrate 12 of each antenna sub-array 10 may be horizontally arranged in the first direction D1 with misalignment, thereby forming a first step region 110 and a second step region 120. The third direction D3 may intersect the first direction D1, e.g. the third direction D3 may be perpendicular to the first direction D1. The antenna regions 130 of two adjacent antenna sub-arrays 10 in a tiled relationship may be adjacent. The first stepped regions 110 of the plurality of antenna sub-arrays 10 may be located at the same side of the antenna region 130 along the first direction D1, and the second stepped regions 120 of the plurality of antenna sub-arrays 10 may be located at the same side of the antenna region 130 along the second direction D2. In some examples, a first drive trace of the plurality of antenna sub-arrays 10 may be routed out of the first stepped region 110 in a first direction D1 and a second drive trace of the plurality of antenna sub-arrays 10 may be routed out of the second stepped region 120 in a second direction D2 to enable reception of the first and second drive signals, respectively.

In some examples, as shown in fig. 7, the antenna sub-array 10 may be rectangular. The shape and size of the plurality of antenna sub-arrays 10 may be substantially the same. The length of the single antenna sub-array 10 in the first direction D1 may be greater than the length in the third direction D3. As the length of the antenna sub-array 10 in the first direction D1 increases, the lengths of the first and second driving traces need to be increased.

In some examples, as shown in fig. 7, the number and arrangement of antenna elements 13 of the plurality of antenna sub-arrays 10 may be substantially the same. The polarization directions of the plurality of antenna elements 13 of one antenna sub-array may be identical, and the polarization directions of the plurality of antenna sub-arrays 10 may be at least partially identical. Since the positional relationship of the plurality of antenna sub-arrays 10 is that the plurality of antenna sub-arrays are horizontally translated along the third direction D3, the polarization direction of the plurality of antenna sub-arrays is not changed during the horizontal translation, and thus the polarization directions of the plurality of antenna sub-arrays after the splicing are consistent. For example, the antenna units of the multiple antenna sub-arrays are linearly polarized, and the linearly polarized antenna arrays can be spliced. For example, the antenna units of the plurality of antenna sub-arrays are all circularly polarized, and the circularly polarized antenna arrays can be obtained by splicing.

In some examples, as shown in fig. 7, a single antenna sub-array 10 may include a plurality of antenna elements 13 arranged in an n×m array. n and m may be greater than a positive integer. The spacing between adjacent antenna elements at the splice location of adjacent antenna sub-arrays 10 having a splice relationship may be L1. The spacing between adjacent antenna elements at the splice location of the two antenna sub-arrays 10, i.e. the spacing between the antenna elements of the closest splice seam within the two antenna sub-arrays 10. For example, L1 may be 0.5 to 2 unit cycles, such as 1 unit cycle.

In some examples, as shown in fig. 7, there is no overlap between adjacent antenna sub-arrays 10, and the thickness of the spliced antenna array is consistent with the thickness of the antenna sub-array, without introducing additional thickness increases.

In some examples, since there is no step space between the adjacent spliced antenna sub-arrays 10 along the third direction D3, the antenna sub-arrays may be closely spliced to achieve a smaller splice gap, so as to effectively reduce the space between the adjacent antenna sub-arrays, thereby reducing the influence on the overall performance and improving the overall gain of the antenna.

Fig. 8 is another schematic diagram of a sub-array of antennas according to at least one embodiment of the present disclosure. In some examples, as shown in fig. 8, after preparing a plurality of antenna sub-arrays 10, the plurality of antenna sub-arrays 10 may be spliced using a frame 60. For example, the frame 60 may be a rectangular solid frame. The plurality of antenna sub-arrays 10 may be disposed in the frame 60 by plugging or adhesive fixing, etc., so as to be spliced to form an antenna array. The fixing manner of the antenna sub-array on the frame in this embodiment is not limited.

Fig. 9 is another schematic diagram of an antenna array in accordance with at least one embodiment of the present disclosure. In some examples, as shown in fig. 9, the antenna array of the present example may include: four antenna sub-arrays 10 are spliced. The four antenna sub-arrays 10 may be square. The structure of the four antenna sub-arrays 10 may be identical. The polarization directions of the four antenna sub-arrays 10 may be the same. The four antenna sub-arrays 10 may be tiled in a 2 x 2 array. After the antenna sub-arrays 10 are rotated and spliced, the polarization directions of the antenna units 13 of two adjacent antenna sub-arrays 10 can be different by 90 degrees, and the circularly polarized antenna arrays can be realized by compensating different phase control voltages, so that the utilization rate can be improved, and the production cost can be reduced. The step area of this example does not arrange between four antenna subarrays, can realize less concatenation clearance, effectively reduces the interval between the adjacent antenna subarrays to reduce the influence to the wholeness ability, improve the antenna overall gain. Other aspects of the antenna array of the present embodiment may refer to the description of the foregoing embodiments, and thus are not repeated herein.

Fig. 10 is another schematic diagram of an antenna array in accordance with at least one embodiment of the present disclosure. In some examples, as shown in fig. 10, the antenna array of the present example may include: four antenna sub-arrays 41 and two third antenna sub-arrays 42 are spliced. The four antenna sub-arrays 41 may be square. The first substrate and the second substrate of the antenna sub-array 41 may be vertically arranged as shown in fig. 1. The four antenna sub-arrays 41 may be tiled in a 2 x 2 array. The manner of splicing the four antenna sub-arrays 41 can be shown in fig. 5 or fig. 9, and thus will not be described herein. The two third antenna sub-arrays 42 may be rectangular. The first and second substrates of the third antenna sub-array 42 may be horizontally arranged as shown in fig. 2. The antenna area of one of the third antenna sub-arrays 42 may be adjacent to the first stepped regions 110 of the two antenna sub-arrays 41, and the antenna area of the other third antenna sub-array 42 may be adjacent to the first stepped regions 110 of the two antenna sub-arrays 41. The size and number of antenna elements of the antenna sub-array 41 may be different from the size and number of antenna elements of the third antenna sub-array 42. However, the present embodiment is not limited thereto.

For example, as shown in fig. 5, four antenna sub-arrays 41 and two third antenna sub-arrays 42 may be assembled to form a linear polarized antenna array; the four antenna sub-arrays 41 and the two third antenna sub-arrays 42 may be assembled to form a circularly polarized antenna array as shown in fig. 9. The present embodiment is not limited thereto.

According to the antenna array, the antenna sub-arrays with different shapes are spliced, the requirement of a larger array scale can be met, and the splicing gaps between the antenna sub-arrays can be reduced as much as possible by arranging the step areas on the non-splicing sides.

Fig. 11 is another schematic diagram of an antenna array according to at least one embodiment of the present disclosure. In some examples, as shown in fig. 11, the antenna array of the present example may include: four antenna sub-arrays 41, two third antenna sub-arrays 42 and two fourth antenna sub-arrays 43 are spliced. The size and number of antenna elements of the antenna sub-array 41, the third antenna sub-array 42 and the fourth antenna sub-array 43 may all be different. The manner of splicing the four antenna sub-arrays 41 and the two third antenna sub-arrays 42 can be shown in fig. 10, and thus will not be described in detail herein. The fourth antenna sub-array 43 may be rectangular, and the first substrate and the second substrate of the fourth antenna sub-array 43 may be horizontally arranged as shown in fig. 2. As shown in fig. 11, the antenna region of one fourth antenna sub-array 43 may be adjacent to the second stepped regions 120 of two antenna sub-arrays 41, and may also be adjacent to the first stepped regions 110 of two third antenna sub-arrays 42. The antenna region of the other fourth antenna sub-array 43 may be adjacent to the second stepped regions 120 of the two antenna sub-arrays 41, and may also be adjacent to the second stepped regions 120 of the two third antenna sub-arrays 42. For example, the antenna array assembled in this example may be a linear polarization or a circular polarization antenna array. The present embodiment is not limited thereto.

According to the antenna array, the antenna sub-arrays with different shapes are spliced, the requirement of a larger array scale can be met, and the splicing gaps between the antenna sub-arrays can be reduced as much as possible by arranging the step areas on the non-splicing sides.

Fig. 12 is a schematic diagram of a tiled cross-section of an antenna sub-array in accordance with at least one embodiment of the present disclosure. Fig. 13 is a schematic diagram illustrating the splicing of antenna sub-arrays according to at least one embodiment of the present disclosure. In some examples, as shown in fig. 12 and 13, the antenna array may include: a plurality of antenna sub-arrays 51a and 51b are spliced. The antenna sub-array 51a includes a first substrate 11a and a second substrate 12a, and the antenna sub-array 51b includes a first substrate 11b and a second substrate 12b. The first and second substrates of the antenna sub-arrays 51a and 51b may be horizontally arranged as shown in fig. 2. There may be overlap in the orthographic projections of the antenna sub-arrays 51a and 51b in the plane of the antenna array. For example, there may be overlap of the second step region of the second substrate 12a of the antenna sub-array 51a with the first step region of the first substrate 11b of the antenna sub-array 51b, and there may be overlap of the antenna region of the antenna sub-array 51a with the antenna region of the antenna sub-array 51b. As shown in fig. 13, the antenna element 13a of the antenna area of the antenna sub-array 51a and the antenna element 13b of the antenna area of the antenna sub-array 51b may not overlap. The spacing L4 between adjacent antenna elements (i.e., adjacent antenna elements 13a and 13 b) at the splice location of the antenna sub-arrays 51a and 51b may be 0.5 to 2 element periods, for example, may be 1 element period.

When the antenna subarrays of the example are spliced, the dislocation of the antenna subarrays in the direction perpendicular to the plane of the antenna subarrays can be used for reducing the splicing gap between the antenna subarrays. Moreover, the antenna units of the adjacent antenna sub-arrays are not lost, and the intervals of the adjacent antenna units can be kept consistent, so that the performance of the spliced antenna array is ensured.

In this example, since there may be overlap of the edges of the antenna sub-arrays in a direction perpendicular to the plane in which the antenna array lies, the effects of shadowing need to be considered in simulation and antenna sub-array design. In the process of splicing the antenna sub-arrays, the frame can be utilized to ensure that the plurality of antenna sub-arrays are dislocated in the direction perpendicular to the plane of the antenna arrays.

The antenna array provided in this embodiment can be applied to various communication systems, for example, a satellite communication system, a conventional mobile communication system, and a non-terrestrial network (NTN) communication system. The communication system may be, for example, a wireless local area network (WLAN, wireless Local Area Network) communication system, a long term evolution (LTE, long Term Evolution) system, an LTE frequency division duplex (FDD, frequency Division Duplex) system, an LTE time division duplex (TDD, time Division Duplex) system, a universal mobile telecommunications system (UMTS, universal Mobile Telecommunication System), a worldwide interoperability for microwave access (WiMAX, worldwide Interoperability for Microware Access) communication system, a fifth generation (5G) system or a New wireless (NR, new Radio), a sixth generation (6G) system, a future communication system, and the like.

The embodiment of the disclosure also provides a method for preparing the antenna array, which comprises the following steps: preparing a plurality of antenna sub-arrays; the plurality of antenna sub-arrays are tiled within a frame. The antenna sub-array includes: the first substrate and the second substrate are oppositely arranged, and the adjustable dielectric layer is positioned between the first substrate and the second substrate; the overlapping areas of the first substrate, the second substrate and the adjustable dielectric layer form an antenna area; the first substrate is provided with a first step area which is positioned at one side of the antenna area along a first direction, the second substrate is provided with a second step area which is positioned at one side of the antenna area along a second direction, and an included angle between the first direction and the second direction is larger than 0 degree and smaller than or equal to 180 degrees. The polarization directions of at least two antenna sub-arrays of the plurality of antenna sub-arrays are different. The antenna areas of at least two antenna sub-arrays having a stitching relationship are adjacent.

In some examples, the manufacturing process of the antenna sub-array may refer to the manufacturing process of the LCD panel, so that the description thereof is omitted. The plurality of antenna sub-arrays may be spliced within the frame using a fixed manner such as plugging or bonding. The present embodiment is not limited thereto.

Fig. 14 is a schematic diagram of an electronic device in accordance with at least one embodiment of the present disclosure. As shown in fig. 14, the present embodiment provides an electronic apparatus 91 including: an antenna array 922. The electronic device 91 may be: smart phones, navigation devices, gaming machines, televisions (TVs), car stereos, tablet computers, personal Multimedia Players (PMPs), personal Digital Assistants (PDAs), and any product or component having communication functions. However, the present embodiment is not limited thereto.

Fig. 15 is a schematic plan view of an electronic device according to at least one embodiment of the present disclosure. Fig. 16 is a schematic partial cross-sectional view taken along the direction P-P' in fig. 15. In some exemplary embodiments, electronic device 91 is taken as an example of a display device. As shown in fig. 15, in a plane parallel to the electronic device, the electronic device 91 includes: a battery region 910, a first region 911 and a second region 912 located at both sides of the battery region 910. In some examples, a battery is disposed within battery region 910. The antenna array 922 may be disposed in at least one of the first region 911 and the second region 912. However, the present embodiment is not limited thereto. In some examples, the antenna array may be disposed in an area between the first area 911 and the bezel of the electronic device 91, or an area between the second area 912 and the bezel of the electronic device 91.

In some exemplary embodiments, an antenna array 922 is provided in the first region 911 as an example. As shown in fig. 16, in a plane perpendicular to the electronic device, the electronic device 91 includes: rear cover 921, antenna array 922, housing 923, printed circuit board 924, display screen 925, and glass cover 926. The glass cover plate 926 is closely attached to the display screen 925, so that dust prevention effect can be achieved on the display screen 925. The housing 923 mainly plays a role in supporting the whole machine. The antenna array 922 may be disposed on the rear cover 921 and connected to the printed circuit board 924 through an opening in the housing 923. However, the present embodiment is not limited thereto.

The drawings in the present disclosure relate only to the structures to which the present disclosure relates, and other structures may be referred to in general. The embodiments of the present disclosure and features in the embodiments may be combined with each other to arrive at a new embodiment without conflict. It will be understood by those skilled in the art that various modifications and equivalent substitutions may be made to the disclosed embodiments without departing from the spirit and scope of the disclosed embodiments, which are intended to be encompassed within the scope of the appended claims.

Claims (15)

1. An antenna array, comprising:

a plurality of antenna sub-arrays spliced, the antenna sub-arrays comprising: the first substrate and the second substrate are oppositely arranged, and the adjustable dielectric layer is positioned between the first substrate and the second substrate; the overlapping areas of the first substrate, the second substrate and the adjustable dielectric layer form an antenna area; the first substrate is provided with a first step area which is positioned at one side of the antenna area along a first direction, the second substrate is provided with a second step area which is positioned at one side of the antenna area along a second direction, and an included angle between the first direction and the second direction is more than 0 degree and less than or equal to 180 degrees;

And the polarization directions of at least two antenna subarrays in the plurality of antenna subarrays are different, and the antenna areas of the at least two antenna subarrays with the splicing relationship are adjacent.

2. The antenna array of claim 1, wherein the plurality of antenna sub-arrays comprises at least: the antenna comprises two first antenna subarrays and two second antenna subarrays, wherein the two first antenna subarrays and the two second antenna subarrays are spliced in a 2 x 2 array mode, the two first antenna subarrays are diagonally arranged, the two second antenna subarrays are diagonally arranged, and the polarization direction of the first antenna subarrays is different from that of the second antenna subarrays.

3. The antenna array of claim 2, wherein the polarization direction of the first antenna sub-array is 90 degrees different from the polarization direction of the second antenna sub-array.

4. The antenna array of claim 2, wherein the first antenna sub-array and the second antenna sub-array are each rectangular.

5. The antenna array of claim 2, wherein a first stepped region of the first antenna sub-array is located on one side of the antenna region along the first direction and a second stepped region is located on one side of the antenna region along the second direction; the first step of the second antenna subarray is located at one side of the antenna area along the first direction, and the second step area is located at one side of the antenna area along the second direction, wherein the first direction is perpendicular to the second direction.

6. The antenna array of claim 2, wherein the plurality of antenna sub-arrays further comprises: at least one third antenna sub-array; an antenna region of the third antenna sub-array is adjacent to the first or second stepped regions of the first and second antenna sub-arrays;

the first step region of the third antenna sub-array is located on one side of the antenna area along the first direction, the second step region is located on one side of the antenna area along the second direction, and the first direction is parallel to the second direction.

7. The antenna array of claim 1, wherein the plurality of antenna sub-arrays are sequentially spliced along a third direction, and antenna areas of adjacent antenna sub-arrays having a spliced relationship are adjacent; the third direction intersects the first direction; the first direction is parallel to the second direction.

8. The antenna array of claim 7, wherein the antenna areas of the plurality of antenna sub-arrays are arranged consecutively in the third direction, wherein a first step area of the plurality of antenna sub-arrays is located on the same side of the antenna area in the first direction, and wherein a second step area of the plurality of antenna sub-arrays is located on the same side of the antenna area in the second direction.

9. The antenna array of any one of claims 1 to 8, wherein the antenna sub-array comprises a plurality of antenna elements;

the spacing between adjacent antenna elements of two antenna sub-arrays having a stitching relationship at the stitching location is between 0.5 and 2 element periods.

10. The antenna array according to any one of claims 1 to 8, wherein the thickness of the antenna array is the same as the thickness of the antenna sub-array.

11. The antenna array of any one of claims 1 to 8, wherein the antenna sub-array comprises a plurality of antenna elements;

there is overlap in the antenna areas of the two antenna sub-arrays having a tiled relationship, the antenna elements of the two antenna sub-arrays not overlapping.

12. The antenna array according to any one of claims 1 to 8, wherein the first substrate comprises at least: the device comprises a first substrate, a first driving electrode and a first driving wire which are positioned on one side of the first substrate close to the adjustable dielectric layer, and a first radiation electrode which is positioned on one side of the first substrate far away from the adjustable dielectric layer; the first driving wire is electrically connected with the first driving electrode and is configured to provide a first driving signal for the first driving electrode;

The second substrate includes at least: the second substrate, a second driving electrode and a second driving wire which are positioned on one side of the second substrate close to the adjustable dielectric layer, and a shielding electrode which is positioned on one side of the second substrate far away from the adjustable dielectric layer; the second driving wire is electrically connected with the second driving electrode and is configured to provide a second driving signal for the second driving electrode.

13. The antenna array according to any one of claims 1 to 8, wherein the first substrate comprises at least: the device comprises a first substrate, a first driving electrode and a first driving wire which are positioned on one side of the first substrate close to the adjustable dielectric layer, and a first radiation electrode which is positioned on one side of the first substrate far away from the adjustable dielectric layer; the first driving wire is electrically connected with the first driving electrode and is configured to provide a first driving signal for the first driving electrode;

the second substrate includes at least: the second substrate, the second driving electrode and the second driving wiring which are positioned on one side of the second substrate close to the adjustable dielectric layer, and the second radiation electrode which is positioned on one side of the second substrate far away from the adjustable dielectric layer; the second driving wire is electrically connected with the second driving electrode and is configured to provide a second driving signal for the second driving electrode.

14. An electronic device comprising an antenna array according to any one of claims 1 to 13.

15. A method of manufacturing an antenna array, comprising:

preparing a plurality of antenna sub-arrays, the antenna sub-arrays comprising: the first substrate and the second substrate are oppositely arranged, and the adjustable dielectric layer is positioned between the first substrate and the second substrate; the overlapping areas of the first substrate, the second substrate and the adjustable dielectric layer form an antenna area; the first substrate is provided with a first step area which is positioned at one side of the antenna area along a first direction, the second substrate is provided with a second step area which is positioned at one side of the antenna area along a second direction, and an included angle between the first direction and the second direction is more than 0 degree and less than or equal to 180 degrees; the polarization directions of at least two antenna subarrays in the plurality of antenna subarrays are different;

and splicing the plurality of antenna subarrays in the frame, wherein the antenna areas of at least two antenna subarrays with a splicing relationship are adjacent.