Ground radiation antenna and display device

Abstract

The utility model discloses a ground radiation antenna and a display device. The ground radiation antenna comprises a PCB substrate, and GND layers are arranged on the front face and the back face of the PCB substrate. The front GND layer includes a first region and a second region. The first area comprises a radiation part of which at least one side is integrally communicated with the second area, and a feed part of which one end is integrally communicated with the radiation part and the other end feeds and is communicated with the second area. According to the ground radiation antenna, a part of the area of the front GND layer is reused as the antenna body, the antenna is isolated through the GND layer communicated with the antenna, a clearance area does not need to be arranged for the antenna, the requirement for the size of a PCB can be lowered, the antenna is arranged on the small-size PCB, the efficiency of receiving and / or sending signals of the antenna can be guaranteed, and the applicability is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of antennas, and in particular to a ground radiation antenna and a display device. BACKGROUND

[0002] When an antenna is arranged on a printed circuit board (PCB), the isolation effect of the antenna needs to be considered to avoid the antenna being interfered with, thereby affecting the efficiency of the antenna in receiving and / or transmitting signals.

[0003] In order to ensure the isolation requirement of the antenna and avoid the antenna being interfered with, when the antenna is arranged on the PCB, a clearance area is usually arranged for the antenna to isolate the antenna from other components and devices through the clearance area. In this way, the clearance area occupies a certain arrangement space, and the size requirement of the PCB is relatively high. However, with the development of technology, the size requirement of the PCB is becoming higher and higher, and the design of the clearance area of the antenna cannot be applied to the small-size PCB. Therefore, how to arrange an antenna without a clearance design on a small-size PCB becomes a technical problem to be solved. CONTENT OF THE INVENTION

[0004] In some embodiments of the present application, a ground radiation antenna is provided, comprising:

[0005] a PCB substrate, the front surface and the back surface of the PCB substrate are both arranged with a GND layer;

[0006] the GND layer of the front surface comprises a first area and a second area;

[0007] the first area comprises:

[0008] a radiation part; a first side of the radiation part is located at a first boundary of the GND layer of the front surface, and a second side of the radiation part is opposite to the first side; at least one side of the radiation part extending in a first direction is in communication with the second area integrally; the first boundary is any one boundary on the GND layer of the front surface; and the first direction is the direction in which the first side extends;

[0009] a feeding part; a first end of the feeding part is in communication with the second side integrally, and a second end of the feeding part is opposite to the first end; the second end is a feeding end and is in communication with a third side of the second area integrally, and the third side is opposite to the second side;

[0010] one first groove extending in the first direction is arranged along each side of the feeding part; the two long sides of each first groove opposite to each other are respectively coincided with the second side and the third side; and the short sides of each first groove away from the feeding part are respectively aligned with the side of the corresponding radiation part;

[0011] The GND layer of the back surface covers at least a range in the back surface corresponding to the first region.

[0012] In the technical solution, the following advantages and technical effects are achieved: when the antenna is arranged on the PCB substrate, the antenna must be isolated to avoid interference from other components, for example, a clearance area can be provided for the antenna. In the technical solution, the GND layer is arranged on the front surface and the back surface of the PCB substrate, the front surface GND layer is divided into two regions, including a first region and a second region, the first region is multiplexed as an antenna, including a radiation part and a feeding part, at least one side of the radiation part is in communication with the second region, that is, at least one side of the radiation part is in communication with the GND layer of the second region, in this way, the GND layer is arranged between the radiation part and other components, the antenna is isolated by the GND layer, interference from other components is avoided, the requirement for antenna isolation is met, a clearance area does not need to be specially provided for the antenna, the structure is simplified, the requirement for the size of the PCB is reduced, the antenna can be arranged on a small-size PCB, and the efficiency of receiving and / or transmitting signals of the antenna is ensured, and the applicability is better.

[0013] In some embodiments of the application, one side of the radiation part extending along the first direction is in communication with the second region, and the other side of the radiation part is arranged with a second groove opening toward the first edge between the second region; the second groove is in communication with the first groove on the same side.

[0014] In the technical solution, the following advantages and technical effects are achieved: the second groove is arranged between one side of the radiation part extending along the first direction and the second region, one side of the radiation part is in communication with the GND layer of the second region, and the other side of the radiation part is isolated from the GND layer of the second region by the second groove, the requirement for antenna isolation is met, and due to the arrangement of the second groove, the other side of the radiation part becomes the edge of the radiation part, in this way, the edge of this side of the radiation part produces strong interaction of electric field and magnetic field, the current density at the edge of this side of the radiation part is increased, and the edge radiation effect of the radiation part at this side is enhanced.

[0015] In some embodiments of the application, one side of the radiation part extending along the first direction is in communication with the second region, and the other side of the radiation part is bounded by a second boundary of the GND layer of the front surface; the second boundary intersects the first boundary at a vertex of the GND layer of the front surface.

[0016] The technical scheme has the following advantages and technical effects: by arranging the radiation part at the corner position of the front GND layer, one side of the radiation part is in communication with the GND layer of the second area, and the other side is located at the corner position of the front GND layer; while meeting the requirement of antenna isolation, due to the arrangement of the corner position, the other side of the radiation part becomes the edge of the radiation part; thus, the edge of the one side of the radiation part produces strong interaction of electric field and magnetic field, the current density at the edge of the one side of the radiation part is increased, and the edge radiation effect of the one side of the radiation part is enhanced.

[0017] In some embodiments of the present application, a first via is arranged along the side edge of the radiation part in communication with the second area; the first via is in communication with the GND layer of the front surface and the GND layer of the back surface.

[0018] The technical scheme has the following advantages and technical effects: by arranging the first via along the side edge of the radiation part in communication with the second area, the current flows from the radiation part to the back GND layer through the first via, the electric field distribution at the first via is changed, the resonant frequency of the ground radiation antenna is reduced, and the radiation effect of the ground radiation antenna is enhanced.

[0019] In some embodiments of the present application, a second via is arranged along the second edge; the second via is in communication with the GND layer of the front surface and the GND layer of the back surface.

[0020] The technical scheme has the following advantages and technical effects: by arranging the second via along the second edge, the current flows from the radiation part to the back GND layer through the second via, the electric field distribution at the second via is changed, the resonant effect of the antenna is further changed, and the radiation effect of the antenna is further enhanced.

[0021] In some embodiments of the present application, the first boundary is in a stepped shape at the communication position of the radiation part and the second area; at the stepped boundary, the edge of the radiation part is higher than the edge of the second area.

[0022] In some embodiments of the present application, a third groove with an opening is arranged on the GND layer of the back surface; the opening is located on a third boundary of the GND layer of the back surface, the third boundary is close to the same side surface of the PCB substrate as the first boundary; one side edge of the third groove corresponds to the side edge of the radiation part in communication with the second area, and the other side edge of the third groove corresponds to the second area.

[0023] The technical scheme has the following advantages and technical effects: by arranging the third groove on the GND layer of the back surface, the area of the reference ground of the antenna is changed, the size of the ground radiation antenna is changed, and the frequency of the antenna is changed.

[0024] In some embodiments of the present application, a third via is arranged along the boundary between the second groove and the radiation part; the third via communicates the GND layer of the front surface with the GND layer of the back surface.

[0025] In the above technical solution, the following advantages and technical effects are achieved: by arranging the third via along the boundary between the second groove and the radiation part, the current flows from the radiation part to the back surface GND layer through the third via, the electric field distribution at the third via is changed, the resonance effect of the antenna can be further changed, and thus the radiation effect of the antenna is further enhanced.

[0026] In some embodiments of the present application, the radiation part includes a main radiation arm in communication with the feeding part and a secondary radiation arm located on both sides of the main radiation arm; one end of each side secondary radiation arm close to the first edge is in communication with the main radiation arm integrally, and a gap for signal coupling is arranged between the other end of each side secondary radiation arm and the main radiation arm; each side gap is in communication with the first groove on the same side.

[0027] In the above technical solution, the following advantages and technical effects are achieved: by setting the radiation part as a structure of a main radiation arm and two side secondary radiation arms, the radio frequency signal can enter the main radiation arm through the feeding end, then be conducted to the secondary radiation arms on both sides through the main radiation arm, and be radiated. Moreover, signal coupling can be generated through the gap between the main radiation arm and the secondary radiation arms on both sides, and the radiation effect is enhanced. In addition, the two secondary radiation arms radiate simultaneously, and two main lobes of radiation can be generated, and radiation is performed in two directions simultaneously.

[0028] In some embodiments of the present application, a display device is provided, which includes the ground radiation antenna in the above embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 An example diagram of arranging an antenna on a PCB in the related art is shown;

[0031] Figure 2 A structural schematic diagram of a ground radiation antenna according to some embodiments is shown;

[0032] Figure 3 A front surface schematic diagram of a PCB substrate in a ground radiation antenna according to some embodiments is shown;

[0033] Figure 4 A back view of a PCB substrate in a ground plane radiating antenna is shown according to some embodiments;

[0034] Figure 5 A front view of a PCB substrate in a ground plane radiating antenna is shown according to some embodiments;

[0035] Figure 6 A front view of a PCB substrate in a ground plane radiating antenna is shown according to some embodiments;

[0036] Figure 7 A front view of a PCB substrate in a ground plane radiating antenna is shown according to some embodiments;

[0037] Figure 8 A front view of a PCB substrate in a ground plane radiating antenna is shown according to some embodiments;

[0038] Figure 9 A front view of a PCB substrate in a ground plane radiating antenna is shown according to some embodiments;

[0039] Figure 10 A back view of a PCB substrate in a ground plane radiating antenna is shown according to some embodiments;

[0040] Figure 11 A front view of a PCB substrate in a ground plane radiating antenna is shown according to some embodiments. DETAILED DESCRIPTION

[0041] For the purpose of clarity, the description of the exemplary embodiments of the present application will be described with reference to the accompanying drawings. It will be apparent that the description of the exemplary embodiments is merely for the purpose of illustrating the present application, and is not intended to limit the present application in any way.

[0042] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described embodiments, and is not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0043] The terms "first", "second", "third", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchanged under appropriate circumstances.

[0044] The terms "comprises", "comprising", "includes", "including", "has", "having" and their variants mean, generally, but not exclusively, that a product or device includes but is not limited to one or more components, features, objects, and / or aspects listed in the specification.

[0045] When arranging an antenna on a PCB board, in order to ensure the efficiency of the antenna in receiving and / or transmitting signals, the antenna needs to be isolated from other components so as to avoid interference from other components.

[0046] As shown in Figure 1 , in order to avoid interference with the antenna, a clearance area is usually provided on the PCB board, such as the clearance area 10 shown in Figure 1 . After the clearance area 10 is provided, the antenna 11 can be arranged in the clearance area 10, so that the antenna 11 is isolated by the clearance area 10, avoiding interference from other components.

[0047] However, when a clearance area is arranged on a PCB board, the clearance area needs to occupy a certain arrangement space, which has a higher requirement for the size of the PCB board. For a smaller PCB board, there is not enough space to arrange the clearance area, and the antenna needs to be installed independently of the PCB board, which not only increases the cost but also makes the structure more complex.

[0048] In order to be able to arrange an antenna with high receiving and transmitting efficiency on a smaller PCB board, in some embodiments of the present application, a ground radiation antenna and a display device are provided. In the ground radiation antenna, a part of the GND layer arranged on the front surface of the PCB substrate is reused as an antenna body, and the antenna is isolated by the GND layer in communication with the antenna, so that a clearance area does not need to be provided for the antenna, which can reduce the requirement for the size of the PCB board, and the antenna can be arranged on a smaller PCB board while ensuring the efficiency of the antenna in receiving and / or transmitting signals, and the applicability is better.

[0049] Figure 2 A structural schematic diagram of a ground radiation antenna according to some embodiments is shown. Figure 3 A front surface schematic diagram of a PCB substrate in a ground radiation antenna according to some embodiments is shown. Figure 4 A back surface schematic diagram of a PCB substrate in a ground radiation antenna according to some embodiments is shown.

[0050] In some embodiments of the present application, as shown in Figures 2-4 , the ground radiation antenna can include a PCB substrate 20, and the front surface and the back surface of the PCB substrate 20 are both arranged with a GND (ground) layer. The GND layer arranged on the front surface of the PCB substrate 20 can be referred to as a front surface GND layer. The front surface GND layer can include a first area and a second area.

[0051] The first region can include the radiation portion 21 and the feeding portion 22. Wherein, the first edge of the radiation portion 21 is located at the first boundary 23 of the front GND layer, or it can also be considered that the first edge of the radiation portion 21 coincides with the first boundary 23 of the front GND layer, or it can also be considered that the radiation portion 21 is bounded by the first boundary 23 of the front GND layer. The second edge of the radiation portion 21 is opposite to the first edge. And at least one side of the radiation portion 21 extending along the first direction is in communication with the second region as a whole. Wherein, the first boundary 23 can be any one boundary on the front GND layer. The first direction refers to the direction in which the first edge extends.

[0052] The first end of the feeding portion 22 is in communication with the second edge of the radiation portion 21 as a whole, and the second end of the feeding portion 22 is opposite to the first end, that is, the second end of the feeding portion 22 is away from the second edge of the radiation portion 21. It can also be considered that the feeding portion 22 is obtained by extending the radiation portion 21 in a direction away from the first boundary 23 of the front GND layer. The second end of the feeding portion 22 can serve as a feeding end for connecting a signal source. And the second end of the feeding portion 22 is in communication with the third edge of the second region as a whole. Wherein, the third edge of the second region is opposite to the second edge of the radiation portion 21, and the third edge of the second region can serve as a boundary between the first region and the second region.

[0053] Along the two side edges of the feeding portion 22, a first groove extending in the first direction is respectively arranged, which are respectively the first groove 24 and the first groove 25. That is to say, on the two sides of the feeding portion 22 extending in the first direction, a first groove is respectively arranged in a direction away from the side edge of the feeding portion 22, taking the side edge of the feeding portion 22 as the starting boundary. The two long edges of the first groove arranged on each side are respectively coincided with the second edge and the third edge. The short edges of the first groove arranged on each side are respectively aligned with the side edge of the corresponding radiation portion, or it can also be considered that the short edges of the first groove arranged on each side are aligned with the boundary between the first region and the second region.

[0054] That is to say, the two opposite long edges of the first groove, one of which is coincided with the second edge of the radiation portion 21, and the other of which is coincided with the third edge of the second region. The two short edges of the first groove, one of which is coincided with the side edge of the feeding portion 22, and the other of which extends to the position of the first edge of the radiation portion 21 after the first edge, and the extension part can serve as the side edge of the radiation portion 21, that is, the other short edge of the first groove extends to the position of the first edge of the radiation portion 21 after the first edge, and the extension part can serve as the boundary (or boundary line) between the radiation portion 21 and the second region.

[0055] The GND layer arranged on the back of the PCB substrate 20 can be referred to as a back GND layer. The back GND layer covers at least a range corresponding to the first area on the back, so as to serve as a reflecting back plate to directionally reflect the signal radiated by the radiation part, and achieve the effect of directional radiation of the ground radiation antenna.

[0056] When the antenna is arranged on the PCB substrate, the antenna must be isolated to avoid interference from other components, for example, a clearance area can be provided for the antenna. In the above technical solution, the front and back of the PCB substrate are both arranged with GND layers, wherein the front GND layer is divided into two areas, including a first area and a second area, and the first area is multiplexed as an antenna, including a radiation part and a feeding part, at least one side of the radiation part is in communication with the second area, that is, at least one side of the radiation part is in communication with the GND layer of the second area. In this way, the GND layer is arranged between the radiation part and other components, and the antenna is isolated by the GND layer, avoiding interference from other components, meeting the requirement of antenna isolation, and there is no need to specially provide a clearance area for the antenna, simplifying the structure and reducing the requirement for the size of the PCB board. On a smaller PCB board, an antenna with high efficiency of receiving and / or transmitting signals can also be arranged, and the applicability is better.

[0057] In addition, by taking the GND layer arranged on the back of the PCB substrate as a reflecting plate, the signal radiated by the antenna can be directionally reflected to achieve the effect of directional radiation.

[0058] In some embodiments of the application, the front GND layer can cover the boundary position of the front of the PCB substrate 20 to cover the front of the PCB substrate 20 in the largest range, that is, the boundary of the front GND layer can coincide with the boundary of the front of the PCB substrate.

[0059] Similarly, the back GND layer can cover the boundary position of the back of the PCB substrate 20 to cover the back of the PCB substrate in the largest range, that is, the boundary of the back GND layer can coincide with the boundary of the back of the PCB substrate 20.

[0060] In addition, the PCB substrate 20 can be provided in a cuboid structure, and the front and back of the PCB substrate 20 can both be provided in a rectangular structure (for example Figures 2-4 The structure shown). The first area of the front GND layer can be provided in an inverted convex structure, and the second area can be provided in a concave structure matching the inverted convex structure of the first area. The first groove 24 and the first groove 25 on both sides of the feeding part 22 can both be provided in a rectangular structure. The back GND layer can also be provided in a rectangular structure.

[0061] With the above structure, the ground radiation antenna can receive radio frequency signals from a signal source (not shown in the figure) through the feed end when in operation. The radio frequency signals can be transmitted from the feed end to the radiation part 21 in the form of current, and an edge field is formed at the edge where the second edge of the radiation part 21 is located. Assuming that the ground radiation antenna is placed parallel to the ground, the first edge and the second edge as long edges both extend along the horizontal plane in the left-right direction, that is, the first direction is the direction extending along the horizontal plane in the left-right direction. The edge field at the edge where the second edge on the left is located is assumed to be from the radiation part 21 to the ground, and the edge field at the edge where the second edge on the right is located is from the ground to the radiation part 21. The components of the electric field of the edge fields on the left and right edges in the vertical direction cancel each other out, and the components in the horizontal direction add up, generating a linearly polarized far field parallel to the horizontal plane. On this basis, in combination with the reflection effect of the back GND layer, an effect of radiating upward perpendicular to the horizontal plane is formed, that is, the radiation part 21 radiates radio frequency signals in the direction upward perpendicular to the horizontal plane.

[0062] It should be noted that the PCB substrate 20 can also be provided in other shapes, such as a square or other irregular shapes. Similarly, the first region and the second region can also be provided in other shapes, and the working principle of the ground radiation antenna is not limited in the present application, and the content of the above embodiment can be referred to, which will not be described here.

[0063] Referring to Figure 5 , Figure 5 The front view of the PCB substrate in the ground radiation antenna according to some other embodiments is shown. In some other embodiments of the present application, the front of the PCB substrate 20 can also be arranged according to the structure shown in Figure 5 .

[0064] As shown in Figure 5 , one side of the radiation part 21 extending in the first direction is in communication with the second region, and a groove, denoted as a second groove 26, can be arranged between the other side of the radiation part 21 and the second region. The second groove 26 has an opening facing the first edge, and the second groove 26 is in communication with the first groove on the same side. That is, the second groove 26 is a groove with an opening, and the opening is located on the first edge of the radiation part 21. Assuming that the second groove 26 is located on the same side as the first groove 25, the second groove 26 is in communication with the first groove 25 on the same side.

[0065] After a second groove 26 is set between one side of the radiating part 21 along the first direction and the second area, one side of the radiating part is connected to the GND layer of the second area as a whole, and the other side is isolated from the GND layer of the second area by the second groove. While meeting the antenna isolation requirements, due to the setting of the second groove, the other side of the radiating part becomes the edge of the radiating part. In this way, the edge of this side of the radiating part will produce a strong interaction between the electric field and the magnetic field, so that the current density at the edge of this side of the radiating part increases, thereby enhancing the edge radiation effect of the radiating part 21 on this side.

[0066] Take the following structure as an example: the PCB substrate is configured as a rectangular parallelepiped, with both the front and back surfaces configured as rectangular structures. The first region of the front GND layer is configured as an inverted convex structure, while the second region is configured as a concave structure that matches the inverted convex structure of the first region. The first groove 24, the first groove 25, and the second groove 26 are all configured as rectangular structures. The back GND layer can also be configured as a rectangular structure.

[0067] Assuming the ground-radiating antenna is placed parallel to the ground, with both its first and second sides extending horizontally to the left and right, the fringe field of the second side on the left is assumed to extend from the radiating element to the ground, while the fringe field of the second side on the right extends from the ground to the radiating element. The vertical components of the electric fields of the left and right fringe fields cancel each other out, while the horizontal components add together, producing a linearly polarized far field parallel to the ground plane. This, combined with the reflective effect of the back GND layer and the enhancement of the right-side fringe effect by the second groove 26, creates a radiation effect directed upward to the right, that is, radiating element 21 radiates RF signals upward to the right.

[0068] It should be noted that in the above embodiments, the PCB substrate, the front and back sides of the PCB substrate, the first area, the second area, the first groove, and the second groove can all be set to other shapes according to the requirements of the actual application scenario, which are not listed here.

[0069] See also Figure 6 , Figure 6 FIG1 shows a schematic diagram of the front surface of the PCB substrate in the ground radiation antenna according to some other embodiments. In some other embodiments of the present application, the front surface of the PCB substrate can also be Figure 6 Arrange the structure shown.

[0070] like Figure 6As shown, one side of the radiation part 21 extending along the first direction is in communication with the second region as a whole, and the other side of the radiation part 21 is bounded by the second boundary 27 of the front GND layer. The first boundary 23 of the front GND layer intersects the second boundary 27 at the vertex of the front GND layer. That is, the radiation part 21 can be arranged at the corner position of the front GND layer, and is bounded by the first boundary 23 and the second boundary 27 of the front GND layer intersecting at the vertex. In this arrangement, the first groove 25 near the second boundary 27 has an opening facing the second boundary 27, or it can be considered that the opening is located on the second boundary 27.

[0071] After arranging the radiation part 21 at the corner position of the front GND layer, one side of the radiation part is in communication with the GND layer of the second region as a whole, and the other side is located at the corner position of the front GND layer. While meeting the requirement of antenna isolation, due to the arrangement of the corner position, the other side of the radiation part becomes the edge of the radiation part. In this way, the edge of this side of the radiation part will produce a strong interaction of electric field and magnetic field, so that the current density at the edge of this side of the radiation part increases, thereby enhancing the edge radiation effect of the radiation part 21 at this side.

[0072] For example, the PCB substrate is arranged in a cuboid structure, and the front surface and the back surface of the PCB substrate are both arranged in a rectangular structure. The first region of the front GND layer is arranged in an inverted convex structure at the corner position, and the second region is arranged in a structure matching the inverted convex structure of the first region. The first groove 24 and the first groove 25 are both arranged in a rectangular structure. The back GND layer can also be arranged in a rectangular structure.

[0073] Suppose that the ground radiation antenna is placed parallel to the ground, and the first edge and the second edge both extend along the horizontal plane in the left-right direction. The edge field at the edge of the second edge on the left is supposed to be from the radiation part to the ground, and the edge field at the edge of the second edge on the right is from the ground to the radiation part. The vertical components of the electric fields of the edge fields on the left and right sides cancel each other out, and the horizontal components of the electric fields of the edge fields on the left and right sides add up, generating a linearly polarized far field parallel to the ground plane. On this basis, combined with the reflection effect of the back GND layer and the enhancement of the edge effect at the second boundary 27, the effect of radiation to the upper right is formed, that is, the radiation part 21 radiates radio frequency signals to the upper right.

[0074] It should be noted that in the above embodiments, the PCB substrate, the front surface and the back surface of the PCB substrate, the first region, the second region, and the first groove can all be arranged in other shapes according to the requirements of actual application scenarios, which will not be listed here.

[0075] Reference is made to Figure 7 , Figure 7Fig. 2 shows a schematic diagram of the front side of the PCB substrate in the ground radiation antenna according to another embodiment. In another embodiment of the present application, the front side of the PCB substrate can also be arranged according to the structure shown in Fig. 3. Figure 7 Fig. 4 shows a schematic diagram of the back side of the PCB substrate in the ground radiation antenna according to another embodiment.

[0076] As shown in Fig. 5, the first via 28 is arranged along the side of the radiation part 21 communicating with the second region. The first via 28 communicates the front side GND layer and the back side GND layer. Figure 7

[0077] In some embodiments of the present application, if one side of the radiation part 21 extending along the first direction communicates with the second region integrally, the other side is provided with a second groove (as shown in Fig. 6), or the other side is bounded by the second boundary (for example, as shown in Fig. 7 or Fig. 8), the first via can be arranged along the side of the radiation part 21 communicating with the second region. The present application does not limit the shape of the first via. Figure 5 Figure 6 Figure 7 In another embodiment of the present application, if both sides of the radiation part 21 extending along the first direction communicate with the second region, the first via can be arranged along one side of the radiation part 21 communicating with the second region, or the first via can be arranged along both sides of the radiation part 21 communicating with the second region. The present application does not limit this.

[0078] After the first via 28 is arranged along the side of the radiation part 21 communicating with the second region, the current will flow to the back side GND layer along the first via 28, the electric field distribution at the first via can be changed, so that the resonant frequency of the ground radiation antenna can be reduced, and the radiation effect of the ground radiation antenna can be enhanced. In addition, the radiation part and the first via 28 are equivalent to a section of double-line transmission line, which can transform the partial capacitance of the ground radiation antenna into inductance, so that the ground radiation antenna forms resonance, the radiation effect of the ground radiation antenna is enhanced, and the radiation direction of the ground radiation antenna is deflected.

[0079] Taking the following structure as an example: the PCB substrate is provided in a cuboid structure, and the front side and the back side of the PCB substrate are both provided in a rectangular structure. The first region of the front side GND layer is provided in an inverted convex structure, the second region is provided in a structure matching the inverted convex structure of the first region, and the radiation part 21 is bounded by the second boundary. The back side GND layer can also be provided in a rectangular structure. The first via 28 is arranged along the side of the radiation part 21 communicating with the second region.

[0080] Taking the following structure as an example: the PCB substrate is provided in a cuboid structure, and the front side and the back side of the PCB substrate are both provided in a rectangular structure. The first region of the front side GND layer is provided in an inverted convex structure, the second region is provided in a structure matching the inverted convex structure of the first region, and the radiation part 21 is bounded by the second boundary. The back side GND layer can also be provided in a rectangular structure. The first via 28 is arranged along the side of the radiation part 21 communicating with the second region.

[0081] ​​​Assuming that the ground radiation antenna is placed parallel to the ground, the first edge and the second edge both extend along the horizontal plane in the left and right directions, the edge field on the left edge where the second edge is located is assumed to be from the radiation part to the ground, and the edge field on the right edge where the second edge is located is from the ground to the radiation part, the components of the electric field of the edge field on the left and right edges in the vertical direction are cancelled out, and the components in the horizontal direction are superimposed, to generate a linearly polarized far field parallel to the ground plane. On this basis, combined with the reflection effect of the back GND layer and the enhancement of the edge effect at the second boundary, the effect of radiating to the upper right is formed, that is, the radiation part radiates radio frequency signals to the upper right. In addition, by setting the first via hole 28 on the side edge of the communication between the radiation part and the second region, the radiation direction of the ground radiation antenna can be further deflected to the upper right, and the effect of the ground radiation antenna radiating to the upper right is enhanced.

[0082] It should be noted that in the above embodiments, the PCB substrate, the front and back surfaces of the PCB substrate, the first region and the second region can be set to other shapes according to the needs of the actual application scene, which will not be listed here.

[0083] In some other embodiments of the present application, as shown in Figure 7 The second via hole 29 can also be arranged along the second edge of the radiation part 21. The second via hole 29 communicates the front GND layer and the back GND layer. The present application does not limit the shape of the second via hole 29.

[0084] After arranging the second via hole 29 along the second edge of the radiation part 21, the current flows from the radiation part to the back GND layer through the second via hole, which changes the electric field distribution at the second via hole and further changes the resonance effect of the ground radiation antenna, thereby further enhancing the radiation effect of the ground radiation antenna.

[0085] In some other embodiments of the present application, as shown in Figure 8 The third via hole 210 can also be arranged along the boundary between the second groove 26 and the radiation part 21. The third via hole 210 communicates the front GND layer and the back GND layer. The present application does not limit the shape of the third via hole 210.

[0086] After arranging the third via hole 210 along the boundary between the radiation part 21 and the second groove 26, the current flows from the radiation part to the back GND layer through the third via hole, which changes the electric field distribution at the third via hole and further changes the resonance effect of the ground radiation antenna, thereby further enhancing the radiation effect of the ground radiation antenna.

[0087] In some other embodiments of the present application, as shown in Figure 9 The first boundary 23 of the front GND layer is in a stepped shape at the communication between the radiation part 21 and the second region. And at the stepped boundary, the edge of the radiation part 21 is higher than the edge of the second region.

[0088] In some embodiments of the present application, as shown in Figure 10 A third groove 211 can be arranged on the back GND layer. The third groove 211 has an opening towards the third boundary 212 of the back GND layer, or it can also be considered that the opening of the third groove 211 is located on the third boundary 212 of the back GND layer. And one side of the third groove 211 corresponds to the side of the radiation part communicating with the second area, and the other side of the third groove 211 corresponds to the second area. Wherein, the third boundary 212 of the back GND layer and the first boundary of the front GND layer are located on the same side of the PCB substrate 20.

[0089] After setting the third groove 211 on the back GND layer, the area of the reference ground of the ground radiation antenna is changed, so that the size of the ground radiation antenna can be changed, and then the frequency of the ground radiation antenna can be changed.

[0090] In some embodiments of the present application, as shown in Figure 11 The radiation part can include a main radiation arm 213 communicating with the feed part 22, and a secondary radiation arm on both sides of the main radiation arm 213, which are secondary radiation arm 214 and secondary radiation arm 215 respectively. That is, the radiation part can include a main radiation arm 213 and two secondary radiation arms, wherein the main radiation arm 213 is integrally communicated with the feed part 22, and the two secondary radiation arms are respectively located on both sides of the main radiation arm 213 extending along the first direction, which are secondary radiation arm 214 and secondary radiation arm 215 respectively.

[0091] The end of each side of the secondary radiation arm close to the first edge is integrally communicated with the main radiation arm 213, and the other end of the secondary radiation arm is provided with a gap 216 for signal coupling between the main radiation arm 213. And the gap 216 on each side is communicated with the first groove on the same side.

[0092] As shown in Figure 11 The gap 216 between the secondary radiation arm 214 and the main radiation arm 213 is communicated with the first groove 24. The gap 216 between the secondary radiation arm 215 and the main radiation arm 213 is communicated with the first groove 25.

[0093] After setting the radiation part 21 to the structure of the above-mentioned main radiation arm 213 and two side secondary radiation arms, the radio frequency signal can enter the main radiation arm 213 through the feed end, and then conduct to the two side secondary radiation arms through the main radiation arm 213, and then radiate. And through the gap 216 between the main radiation arm 213 and the two side secondary radiation arms, signal coupling can be generated to enhance the radiation effect.

[0094] In addition, the two secondary radiation arms radiate at the same time, which can generate 2 radiation main lobes and radiate in two directions at the same time.

[0095] Take the following structure as an example: the PCB substrate is set as a cuboid structure, and the front and back surfaces of the PCB substrate are set as rectangular structures. The first area of the front GND layer is set as an inverted convex structure and is located at the corner position of the front GND layer, and the second area is set as a structure matched with the inverted convex structure of the first area, and the radiation part is bounded by the second boundary.

[0096] The side edge of the radiation part in communication with the second area is arranged with a first via, and the second edge of the radiation part is arranged with a second via.

[0097] The radiation part includes a main radiation arm and a secondary radiation arm located on both sides of the main radiation arm. Each side of the secondary radiation arm is in communication with the main radiation arm at one end close to the first edge, and a gap for signal coupling is arranged between the other end and the main radiation arm.

[0098] The back GND layer is set as a rectangular structure. Moreover, a third groove is arranged on the back GND layer.

[0099] Assuming that the ground radiation antenna is placed parallel to the ground, the first edge and the second edge both extend along the horizontal plane in the left and right directions, the edge field located on the second edge on the left is assumed to be from the radiation part to the ground, and the edge field located on the second edge on the right is from the ground to the radiation part. The vertical components of the electric fields of the edge fields on the left and right sides cancel each other out, and the horizontal components superimpose, generating a linearly polarized far field parallel to the ground plane.

[0100] The radio frequency signal enters the main radiation arm through the feed end, and then conducts to the secondary radiation arms on both sides through the main radiation arm for radiation. Moreover, signal coupling can be generated through the gap between the main radiation arm and the secondary radiation arms on both sides, enhancing the radiation effect. In addition, the two secondary radiation arms radiate simultaneously, generating two main radiation lobes and radiating in two directions simultaneously.

[0101] On this basis, the back GND layer serves as a reflective back plate and directionally reflects the radiation signal.

[0102] The first via and the second via can change the current flow direction, flow to the back GND layer on the left and right sides, so that the antenna resonates, further enhancing the radiation effect.

[0103] Through the third groove of the back GND layer, the size of the antenna can be adjusted, and the frequency of the antenna can be changed.

[0104] In addition, the secondary radiation arm on the left side is in communication with the second area, which can effectively isolate the main radiation arm and the secondary radiation arm on the right side, without the need to arrange a clearance area, and has better applicability.

[0105] It should be noted that the features of one or more embodiments and embodiments described in the specification above can be combined with each other and the application is not limited to any single aspect or combination of aspects unless otherwise explicitly stated. Moreover, each aspect of the application and embodiments thereof can be used alone or in combination with one or more other aspects and embodiments thereof.

[0106] According to the method provided by the embodiments of the application, the embodiments of the application further provide a computer storage medium storing computer programs or instructions, which, when executed on a computer, cause the computer to perform the method of any one of the method embodiments.

[0107] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0108] For the convenience of explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. Various modifications and variations can be derived according to the above teachings. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. A ground-based radiating antenna, characterized by, The application relates to a PCB substrate, which comprises: a PCB substrate, the front and back surfaces of which are provided with GND layers; the GND layer of the front surface comprises a first region and a second region; the first region comprises: a radiation part, a first side of the radiation part is located at a first boundary of the GND layer of the front surface, and a second side of the radiation part is opposite to the first side; at least one side of the radiation part extending in a first direction is in communication with the second region; the first boundary is any one boundary on the GND layer of the front surface; and the first direction is the direction in which the first side extends; a feeding part, a first end of the feeding part is in communication with the second side, and a second end of the feeding part is opposite to the first end; the second end is a feeding end and is in communication with a third side of the second region, and the third side is opposite to the second side; a first groove extending in the first direction is arranged along each side of the feeding part; the opposite two long sides of each first groove are coincident with the second side and the third side respectively; and the short side of each first groove away from the feeding part is aligned with the side of the corresponding radiation part; the GND layer of the back surface covers at least the range corresponding to the first region in the back surface.

2. The ground plane antenna of claim 1, wherein one side of the radiation part extending in the first direction is in communication with the second region, and the other side is provided with a second groove opening towards the first side between the second region; the second groove is in communication with the first groove on the same side.

3. The ground plane antenna of claim 1, wherein, one side of the radiation part extending in the first direction is in communication with the second region, and the other side is bounded by a second boundary of the GND layer of the front surface; the second boundary intersects with the first boundary at a vertex of the GND layer of the front surface.

4. The ground plane antenna of claim 1, wherein, a first via is arranged along the side of the radiation part in communication with the second region; the first via is in communication with the GND layer of the front surface and the GND layer of the back surface.

5. The ground plane antenna of claim 1, wherein, a second via is arranged along the second side; the second via is in communication with the GND layer of the front surface and the GND layer of the back surface.

6. The ground plane antenna of claim 1, wherein, the first boundary is in a stepped shape at the communication position of the radiation part and the second region; at the stepped boundary, the edge of the radiation part is higher than the edge of the second region.

7. The ground plane antenna of claim 1, wherein, a third groove with an opening is arranged on the GND layer of the back surface; the opening is located on a third boundary of the GND layer of the back surface, and the third boundary is close to the same side surface of the PCB substrate as the first boundary; one side of the third groove corresponds to the side of the radiation part in communication with the second region, and the other side of the third groove corresponds to the second region.

8. The ground plane antenna of claim 2 wherein, a third via is arranged along the boundary between the second groove and the radiation part; the third via is in communication with the GND layer of the front surface and the GND layer of the back surface.

9. The ground plane antenna of any one of claims 1-8, wherein, the radiation part comprises a main radiation arm in communication with the feeding part and auxiliary radiation arms located on both sides of the main radiation arm; one end of each auxiliary radiation arm close to the first side is in communication with the main radiation arm, and a gap for signal coupling is arranged between the other end of each auxiliary radiation arm and the main radiation arm. The gap on each side communicates with the first groove on the same side.

10. A display device, characterized by comprising: A terrestrial radio antenna comprising the antenna according to any one of claims 1-9.

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