Antenna assembly and electronic equipment

Abstract

The invention provides an antenna assembly. The antenna assembly comprises a conductive plate, a grounding plate and a conductive wall, the conductive plate comprises a first radiation edge and a first connection edge. The grounding plate is parallel to and spaced from the conductive plate, and comprises a second radiation edge and a second connection edge. The conductive wall is connected between the first connecting edge and the second connecting edge and used for connecting the first connecting edge of the conductive plate to the ground. The first radiation edge and the second radiation edge are opposite and arranged at an interval, and the conductive plate, the grounding plate and the conductive wall form a cavity antenna with a clearance side surface. Wherein the conductive plate is provided with a feed gap and a matching gap communicated with the feed gap, the feed gap is used for accessing a feed signal, and the cavity antenna is used for excitation of the feed signal. The invention further provides the electronic equipment. The antenna performance can be ensured in an effective clearance area.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an antenna assembly and an electronic device having the antenna assembly. Background Technology

[0002] Currently, with the widespread adoption of 5G communication technology, people's communication experience is improving, but the number of antennas is also increasing. As people pursue high screen-to-body ratios, electronic devices equipped with such displays have become mainstream. Due to their superior feel and heat dissipation, metal covers have gradually become the mainstream cover material for many electronic devices such as mobile phones, tablets, and even laptops. In this situation, the clearance area left for antennas in current electronic devices is decreasing, leading to a decline in antenna performance or encroaching on the space of other functional components, thus affecting their functionality. Summary of the Invention

[0003] This application provides an antenna assembly and an electronic device to solve the above-mentioned problems.

[0004] In a first aspect, an antenna assembly is provided, comprising a conductive plate, a ground plane, and a conductive wall. The conductive plate includes at least one first radiating edge and at least one first connecting edge. The ground plane is parallel to and spaced apart from the conductive plate, and includes at least one second radiating edge and at least one second connecting edge, and is grounded. The conductive wall is connected between the at least one first connecting edge and the at least one second connecting edge, and is used to connect the at least one first connecting edge of the conductive plate to ground. The at least one first radiating edge and the at least one second radiating edge are opposite to each other and spaced apart, and the conductive plate, ground plane, and conductive wall form a cavity antenna with at least one clear side surface, wherein the at least one first radiating edge and the at least one second radiating edge are opposite sides of the at least one clear side surface. The conductive plate has a feed slot and a matching slot communicating with the feed slot. The feed slot is used to receive a feed signal, and the cavity antenna is used to support the transmission and reception of electromagnetic wave signals in a preset frequency band under the excitation of the feed signal. The matching slot is used to achieve impedance matching adjustment in the preset frequency band.

[0005] Secondly, an electronic device is also provided, comprising an antenna assembly including a conductive plate, a ground plane, and a conductive wall. The conductive plate includes at least one first radiating edge and at least one first connecting edge. The ground plane is parallel to and spaced apart from the conductive plate, and includes at least one second radiating edge and at least one second connecting edge, and is grounded. The conductive wall is connected between the at least one first connecting edge and the at least one second connecting edge, and is used to connect the at least one first connecting edge of the conductive plate to ground. The at least one first radiating edge and the at least one second radiating edge are opposite to each other and spaced apart, and the conductive plate, ground plane, and conductive wall form a cavity antenna with at least one clear side surface, wherein the at least one first radiating edge and the at least one second radiating edge are opposite sides of the at least one clear side surface. The conductive plate has a feed slot and a matching slot communicating with the feed slot. The feed slot is used to receive a feed signal, and the cavity antenna is used to support the transmission and reception of electromagnetic wave signals in a preset frequency band under the excitation of the feed signal. The matching slot is used to achieve impedance matching adjustment in the preset frequency band.

[0006] The antenna assembly and electronic device of this application, by forming a cavity antenna, can radiate through the clearance side. Good antenna radiation performance is achieved with only a certain clearance near the clearance side, thus requiring very little clearance area and enabling application in environments with limited clearance. Furthermore, in this application, the conductive plate has a feed slot and a matching slot communicating with the feed slot. The feed slot is used to receive the feed signal, and the matching slot is used to achieve impedance matching adjustment for a preset frequency band. Therefore, the matching slot can perform the function of a matching unit or matching element, thus eliminating the need for a matching unit or matching element, saving costs, and reducing the space occupied by the matching unit or matching element, which is beneficial for overall miniaturization and reduces space occupancy. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0008] Figure 1 This is a schematic diagram of the antenna assembly in some embodiments of this application.

[0009] Figure 2 This is another structural schematic diagram of the antenna assembly in some embodiments of this application.

[0010] Figure 3 This is yet another structural schematic diagram of the antenna assembly in some embodiments of this application.

[0011] Figure 4 This is another schematic diagram of the antenna assembly in some embodiments of this application.

[0012] Figure 5 This is a schematic diagram of other structures of the antenna assembly in some embodiments of this application.

[0013] Figure 6 This is a schematic diagram of the electric field distribution of the antenna assembly in some embodiments of this application.

[0014] Figure 7 This is a schematic diagram of the structure of an antenna assembly in a modified example of some embodiments of this application.

[0015] Figure 8 This is a schematic diagram of the structure of the antenna assembly in some embodiments of this application in another modified example.

[0016] Figure 9 This is a schematic diagram of another modified example of the antenna assembly in some embodiments of this application.

[0017] Figure 10 This is a schematic diagram of another electric field distribution of the antenna assembly in some embodiments of this application.

[0018] Figure 11 This is a further structural schematic diagram of the antenna assembly in some embodiments of this application.

[0019] Figure 12 for Figure 11 The diagram shown is an exploded view of part of the antenna assembly.

[0020] Figure 13 This is a further schematic diagram of the antenna assembly in some embodiments of this application.

[0021] Figure 14 This is yet another structural schematic diagram of the antenna assembly in some embodiments of this application.

[0022] Figure 15 This is a structural block diagram of an electronic device in some embodiments of this application.

[0023] Figure 16 This is a schematic diagram illustrating part of the internal structure of an electronic device in some embodiments of this application.

[0024] Figure 17 This is a schematic diagram showing a portion of the internal structure of an electronic device in some embodiments of this application, viewed from the display screen side.

[0025] Figure 18 This is a schematic side view of a portion of the structure of an electronic device in some embodiments of this application.

[0026] Figure 19 This is a schematic diagram illustrating another portion of the internal structure of an electronic device in some embodiments of this application.

[0027] Figure 20 This is another schematic diagram illustrating a portion of the internal structure of an electronic device in some embodiments of this application.

[0028] Figure 21 This is a simplified overall schematic diagram of an electronic device in some embodiments of this application.

[0029] Figure 22 This is a simplified planar schematic diagram of an electronic device in some embodiments of this application.

[0030] Figure 23 This is a schematic diagram comparing the return loss and system efficiency of electronic devices and reference electronic devices in some embodiments of this application when operating in a preset frequency band. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of the embodiments of this invention, it should be understood that the terms "upper," "lower," "thickness," "width," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not imply or indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The term "connection" in this application may include electrical connection, direct connection, or indirect connection, etc., and can be specifically determined according to the description. The term "coupling" in this application mainly refers to indirect connection or electrical connection, and may also include direct connection where there is a description or where it can be deduced from the description. In the description of the embodiments of this invention, the terms "first," "second," etc., are not specific, but are used to distinguish objects with the same name. Where there is a description, the objects with the same name referred to by the terms "first," "second," etc., may be the same object. In the description of the embodiments of this invention, the term "A / B" refers to A or B, belonging to "A and / or B," including cases with only "A," only "B," or both "A" and "B."

[0033] Please refer to the following: Figure 1 This is a schematic diagram of the structure of antenna assembly 1 in some embodiments of this application. Figure 1As shown, the antenna assembly 1 includes a conductive plate 11, a ground plane 12, and a conductive wall 13. The conductive plate 11 includes at least one first radiating edge B11 and at least one first connecting edge B12. The ground plane 12 is parallel to and spaced apart from the conductive plate 11, and includes at least one second radiating edge B21 and at least one second connecting edge B22, wherein the ground plane 12 is grounded. The conductive wall 13 is connected between at least one first connecting edge B12 and at least one second connecting edge B22, and is used to connect at least one first connecting edge B12 of the conductive plate 11 to ground. At least one first radiating edge B11 and at least one second radiating edge B21 are opposite to and spaced apart. The conductive plate 11, the ground plane 12, and the conductive wall 13 form a cavity antenna T1 having at least one clear side surface, where at least one first radiating edge B11 and at least one second radiating edge B21 are opposite sides of at least one clear side surface S1. The conductive plate 11 has a feeding slot 111 and a matching slot 112 connected to the feeding slot 111. The feeding slot 111 is used to receive the feeding signal. The cavity antenna T1 is used to support the transmission and reception of electromagnetic wave signals in a preset frequency band under the excitation of the feeding signal. The matching slot 112 is used to realize the impedance matching adjustment of the preset frequency band.

[0034] In this application, by forming a cavity antenna T1, radiation can be achieved through the clearance side. Good antenna radiation performance is achieved with only a certain clearance near the clearance side, thus requiring very little clearance area and enabling application in environments with limited clearance. Furthermore, in this application, the conductive plate 11 has a feed slot 111 and a matching slot 112 connected to the feed slot 111. The feed slot 111 is used to receive the feed signal, and the matching slot 112 is used to achieve impedance matching adjustment for a preset frequency band. Therefore, the matching slot 112 can perform the function of a matching unit or matching element, thus eliminating the need for a matching unit or matching element, saving costs, and reducing the space occupied by the matching unit or matching element, which is beneficial for overall miniaturization and reduces space occupation.

[0035] In this application, at least one first radiating edge B11 and at least one first connecting edge B12 are connected to form the complete outer periphery of the conductive plate 11, and at least one second radiating edge B21 and at least one second connecting edge B22 are connected to form the complete outer periphery of the ground plane 12. A conductive wall 13 is connected between at least one first connecting edge B12 and at least one second connecting edge B22, connecting at least one first connecting edge B12 to ground. At least one first radiating edge B11 and at least one second radiating edge B21 are spaced apart, thus the first radiating edge B11 and the corresponding second radiating edge B21 constitute two opposite sides of a corresponding clearance side surface S1. The other sides of the cavity antenna T1 are closed by the conductive wall 13. Therefore, the conductive plate 11, the ground plane 12, and the conductive wall 13 form a cavity antenna T1 with at least one clearance side surface S1.

[0036] The clearance side S1 is used to radiate the electromagnetic wave signal generated by the cavity antenna T1. The first radiating side B11 and the second radiating side B21 in this application can specifically refer to the sides of the conductive plate 11 and the ground plate 12 located on the clearance side S1, which is used to radiate the electromagnetic wave signal.

[0037] Please see Figure 2 This is another structural schematic diagram of antenna assembly 1 in some embodiments of this application. Figure 2 compared to Figure 1 More components and / or labels are shown. Figure 2 The viewing angle of antenna component 1 in the middle and Figure 1 The antenna assembly 1 shown is also different.

[0038] In some embodiments, such as Figure 2 As shown, the power supply gap 111 includes a first gap end 111a and a second gap end 111b opposite to each other. The first gap end 111a of the power supply gap 111 is connected to one of the first radiating edges B11, and a gap opening K1 is formed in the first radiating edge B11. The matching gap 112 is connected to the second gap end 111b of the power supply gap 111.

[0039] That is, in some embodiments, the first slot end 111a of the feed slot 111 extends to one of the first radiating edges B11, and a slot opening K1 is formed on the first radiating edge B11. Therefore, by feeding the feed slot 111 with the slot opening K1, it is more beneficial to improve the radiation efficiency. In addition, the matching slot 112 is connected to the second slot end 111b of the feed slot 111, and is closer to the inner side of the conductive plate 11 than the feed slot 111.

[0040] In this application, since the matching gap 112 is connected to the power supply gap 111, when the power supply gap 111 receives the power supply signal, a corresponding power supply current will be generated in the power supply gap 111 and the matching gap 112. Thus, the distribution of the power supply current can be affected through the matching gap 112, and corresponding matching adjustment can be achieved.

[0041] In some embodiments, the size of the matching gap 112 can be significantly larger than the size of the feeding gap 111. For example, the size of the matching gap 112 can be more than twice the size of the feeding gap 111. The sizes of the matching gap 112 and the feeding gap 111 can refer to the areas projected onto a plane parallel to the conductive plate 11, or they can refer to the perimeter lengths of the matching gap 112 and the feeding gap 111. Therefore, since the size of the matching gap 112 is significantly larger than the size of the feeding gap 111, the feeding current distributed in the matching gap 112 will be significantly greater than the feeding current in the feeding gap 111, mainly because the matching gap 112 plays a matching role.

[0042] In some embodiments, such as Figure 2 As shown, the feed slot 111 includes a first slot wall F11 and a second slot wall F12 facing each other. The first slot wall F11 and the second slot wall F12 both extend between the first slot end 111a and the second slot end 111b, and the first slot wall F11 and the second slot wall F12 are facing each other and spaced apart. The feed signal includes a first feed signal and a second feed signal. The first feed signal and the second feed signal are out of phase. The first slot wall F11 and the second slot wall F12 are used to receive the first feed signal and the second feed signal, respectively. The cavity antenna T1 supports the transmission and reception of electromagnetic wave signals in a preset frequency band under the excitation of the first feed signal and the second feed signal.

[0043] Among them, the power supply signal, the first power supply signal, and the second power supply signal are all AC signals, and the first power supply signal and the second power supply signal are out of phase.

[0044] That is, in some embodiments, the feed slot 111 includes a first slot wall F11 and a second slot wall F12 opposite to each other. The first slot wall F11 and the second slot wall F12 each have a feed point, and the first feed signal and the second feed signal with opposite phase are fed in / received respectively. At this time, the feed for the cavity antenna T1 is a balanced feed, which can effectively feed energy and improve the antenna performance.

[0045] In this context, balanced power supply mainly refers to the fact that the first power supply signal and the second power supply signal are out of phase. Thus, at the same time, the voltage of one of the first power supply signal and the voltage of the second power supply signal are positive and the voltage of the other is negative, thereby achieving a roughly symmetrical positive and negative voltage and achieving a roughly balanced power supply.

[0046] In some embodiments, the feed signal may include only one feed signal, or one of the slot walls in the feed slot 111 may receive one feed signal, and the cavity antenna T1 may support the transmission and reception of electromagnetic wave signals in a preset frequency band under the excitation of one feed signal.

[0047] That is, in some embodiments, the feed for cavity antenna T1 may also be unbalanced feed.

[0048] Unbalanced power supply mainly refers to a situation where only one AC power supply signal is input, or there are two signal outputs, one of which is an AC power supply signal and the other remains zero. In this case, the power supply is unbalanced.

[0049] In some embodiments, such as Figure 2 As shown, the first slit wall F11 and the second slit wall F12 are respectively used to connect to the inner core L11 and the outer core L12 of a radio frequency line Line1, so as to receive the first feed signal and the second feed signal transmitted from the inner core L11 and the outer core L12 of the radio frequency line Line1, respectively.

[0050] That is, in some embodiments, the first slit wall F11 and the second slit wall F12 are respectively used to connect to the inner core L11 and the outer core L12 of a radio frequency line Line1. The inner core L11 and the outer core L12 of the radio frequency line Line1 are respectively used to transmit the first feed signal and the second feed signal, so that the first slit wall F11 and the second slit wall F12 can respectively receive the first feed signal and the second feed signal transmitted from the inner core L11 and the outer core L12 of the radio frequency line Line1.

[0051] In some embodiments, the radio frequency line Line1 may be a coaxial cable, including an inner core L11 and an outer core L12. The inner core L11 and the outer core L12 are used to transmit a first feed signal and a second feed signal with opposite phases, respectively. The inner core L11 and the outer core L12 are connected to the first slot wall F11 and the second slot wall F12, respectively, so as to feed the first feed signal and the second feed signal with opposite phases into the first slot wall F11 and the second slot wall F12, thereby achieving balanced feeding.

[0052] In some embodiments, the inner core L11 of the radio frequency line Line1 can be connected to any position of the first slot wall F11, and the outer core L12 can also be connected to any position of the second slot wall F12.

[0053] The first slot wall F11 and the second slot wall F12 in this application may include two side walls directly opposite the power supply slot 111, and may further include portions adjacent to and close to the two side walls directly opposite the power supply slot 111.

[0054] In some embodiments, at least one end of the target first radiating edge B11, which is connected to the first gap end 111a of the power supply gap 111, is connected to the target first connecting edge B12. The power supply gap 111 is closer to the target first connecting edge B12 connected to the target first radiating edge B11 than to the other side connected to the target first radiating edge B11, and the first gap wall F11 of the power supply gap 111 is farther away from the target first connecting edge B12 than to the second gap wall F12. The length of the target portion P1 of the target first radiating edge B11 from the first gap wall F11 to the end connected to the target first connecting edge B12 is 1 / 5 to 1 / 2 of the target first radiating edge B11.

[0055] That is, in some embodiments, the first radiating edge B11 connected to the first gap end 111a of the power supply gap 111 is designated as the target first radiating edge B11. At least one of the opposite ends of the target first radiating edge B11 is connected to the first connecting edge B12. The first connecting edge B12 connected to one end of the target first radiating edge B11 is designated as the target first connecting edge B12. The first gap wall F11 of the power supply gap 111 is further away from the target first connecting edge B12 than the second gap wall F12. The length of the target portion P1 of the target first radiating edge B11 from the first gap wall F11 to the end connected to the target first connecting edge B12 is 1 / 5 to 1 / 2 of the target first radiating edge B11.

[0056] In this application, 1 / 5 to 1 / 2 can refer to a range greater than or equal to 1 / 5 and less than or equal to 1 / 2. That is, the range a1 to b1 in this application can refer to a range greater than or equal to a1 and less than or equal to b1.

[0057] Therefore, in this application, the power supply gap 111 will be closer to the target first connection edge B12, while in some embodiments, such as Figure 2 As shown, the RF line Line1 extends from the first connection edge B12 of the target to the feed gap 111. Therefore, the length of the RF line Line1 can be reduced to avoid transmission loss.

[0058] In some embodiments, when at least one end of the target first radiating edge B11 connected to the first connecting edge B12 is connected to the first connecting edge B11, and the first gap end 111a of the power supply gap 111 is closer to the target first connecting edge B12 connected to the target first radiating edge B11 than the other side connected to the target first radiating edge B11, one end of the matching gap 112 is connected to the second gap end 111b of the power supply gap 111, and the matching gap 112 extends toward the target first connecting edge B12.

[0059] That is, in some embodiments, the matching slot 112 is connected to the second slot end 111b of the feed slot 111, and the matching slot 112 extends toward the target first connection edge B12 closer to the feed slot 111, so that it is also located in the region close to the target first connection edge B12. This allows the matching slot 112 and the feed slot 111 to be located at the corner of the conductive plate 11, thereby reducing the impact on the cavity resonance of the cavity antenna T1.

[0060] In some embodiments, such as Figure 2 As shown, the distance from the first slot end 111a to the second slot end 111b of the feed slot 111 can be greater than the distance between the first slot wall F11 and the second slot wall F12 of the feed slot 111. Since the matching slot 112 is connected to the second slot end 111b, there will be a certain distance between the matching slot 112 and the target first radiation edge B11, thus providing space for the setting of the radio frequency line Line1.

[0061] in, Figure 1 and Figure 2 In the diagram, at least one first radiating edge B11 and at least one second radiating edge B21 are shown, along with one clear side surface S1. At this time, both ends of the target first radiating edge B11, connected to the first gap end 111a of the feed gap 111, are connected to the first connecting edge B12. The other side connected to the target first radiating edge B11 is also a corresponding first connecting edge B12; that is, it can be the same first connecting edge B12 or another first connecting edge B12. The target first connecting edge B12 can be any one of the first connecting edges B12 connected to both ends of the target first radiating edge B11.

[0062] In some embodiments, there may be two first radiating edges B11 and two second radiating edges B21, and there may be two clearance sides S1 accordingly, as will be described later. In this case, one end of the target first radiating edge B11 connected to the first gap end 111a of the power supply gap 111 is connected to the target first connecting edge B12, wherein the other side connected to the target first radiating edge B11 is another first radiating edge B11.

[0063] In some embodiments, the shape of the matching gap 112 includes any one of square, circular, elliptical, D-shaped, triangular, trapezoidal, or irregular shapes.

[0064] That is, in some embodiments, the matching gap 112 can be of any shape. Wherein, Figure 1 and Figure 2 In the diagram, the matching gap 112 is illustrated using a square shape as an example.

[0065] Please see Figure 3This is another structural schematic diagram of antenna assembly 1 in some embodiments of this application.

[0066] In some embodiments, such as Figure 3 As shown, the matching gap 112 is roughly circular.

[0067] in, Figure 3 Other shapes of the matching gap 112 are mainly illustrated. Other structures of the antenna assembly 1 may be the structures in any of the foregoing embodiments.

[0068] As mentioned above, the shape of the matching gap 112 can also be elliptical, D-shaped, triangular, trapezoidal, irregular, etc., which will not be illustrated in the attached diagrams here.

[0069] In some embodiments, such as Figures 1-3 As shown, the power supply gap 111 can be square in shape. In some embodiments, the power supply gap 111 can also be elliptical, trapezoidal or other shapes.

[0070] in, Figure 3 In order to be in Figure 1 Other shapes of the matching slot 112 are illustrated based on the antenna assembly 1 shown.

[0071] In some embodiments, the impedance matching effect of the matching gap 112 on the preset frequency band varies depending on the size of the matching gap 112.

[0072] That is, in some embodiments, the size of the matching gap 112 will affect the impedance matching effect of the preset frequency band. Thus, by selecting a matching gap 112 of appropriate size, the impedance matching effect of the matching gap 112 on the preset frequency band can be better, thereby achieving better impedance matching of the preset frequency band, and thus making the cavity antenna T1 work more efficiently in the preset frequency band.

[0073] In some embodiments, the matching gap 112 is a rectangular gap, and the dimensions of the matching gap 112 include the length and width of the matching gap.

[0074] That is, in some embodiments, such as Figures 1-2 As shown, the matching gap 112 can be a rectangular gap, and the size of the matching gap 112 can include the length and width of the matching gap 112. Thus, by selecting an appropriate length and width, better impedance matching of the preset frequency band can be achieved.

[0075] In some embodiments, when the matching gap 112 is circular, the size of the matching gap 112 may also be the diameter of the matching gap 112, etc.

[0076] As previously mentioned, since the matching gap 112 is connected to the feed gap 111, when the feed gap 111 receives the feed signal, a corresponding feed current will be generated in both the feed gap 111 and the matching gap 112. This feed current will primarily flow along the perimeter of the matching gap 112. Therefore, different perimeter lengths of the matching gap 112 will result in different feed matching effects, thus achieving different impedance matching results. The length, width, and diameter of the matching gap 112 directly affect its perimeter. Therefore, in some embodiments, the impedance matching effect of the matching gap 112 on a preset frequency band varies depending on its size, and the size of the matching gap 112 may include its length, width, diameter, etc.

[0077] In some embodiments, the size of the matching gap 112 may also be the perimeter or area of ​​the matching gap 112.

[0078] That is, in some embodiments, the size of the matching gap 112 can be directly the perimeter of the matching gap 112, or it can be the area of ​​the matching gap 112. Since the area of ​​the matching gap 112 is actually proportional to the perimeter of the matching gap, the size of the matching gap 112 can also include the area of ​​the matching gap. By designing a matching gap 112 with a suitable area, better impedance matching can be achieved.

[0079] In some embodiments, the projections of at least one first radiating edge B11 and at least one first connecting edge B12 of the conductive plate 11 onto the ground plane 12 coincide with at least one second radiating edge B21 and at least one second connecting edge B22, respectively.

[0080] That is, in some embodiments, the projection of at least one first radiating edge B11 of the conductive plate 11 onto the ground plane 12 coincides with at least one second radiating edge B21; the projection of at least one first connecting edge B12 of the conductive plate 11 onto the ground plane 12 coincides with at least one second connecting edge B22. Thus, the projection of the conductive plate 11 onto the ground plane 12 coincides with the ground plane 12, thereby forming a better cavity antenna T1.

[0081] Obviously, the overlap of A and B in this application is not a strict overlap, but rather an approximate overlap, with some deviation allowed. If A and B are parallel and the distance between them is less than a preset distance, such as 5 mm, or if A and B intersect and the angle between them is less than a preset angle, such as 20°, they can also be considered as overlapping.

[0082] In some embodiments, such as Figures 1-3As shown in the figure, at least one first radiating edge B11 includes a first radiating edge B11, one end of the first radiating edge B11 is connected to the other end of the first radiating edge B11 through at least one first connecting edge, and at least one second radiating edge B21 includes a second radiating edge B21, one end of the second radiating edge B21 is connected to the other end of the second radiating edge B21 through at least one second connecting edge B22, the first radiating edge B11 and the second radiating edge B21 are opposite to each other and spaced apart, the conductive plate 11, the ground plate 12 and the conductive wall 13 form a cavity antenna T1 with a clear side surface S1, and the first radiating edge B11 and the second radiating edge B21 are two opposite sides of the clear side surface S1.

[0083] That is, in some embodiments, the conductive plate 11 may include only one first radiating edge B11, the ground plane 12 may include only one second radiating edge B21, and the cavity antenna T1 has only one clear side S1, with the first radiating edge B11 and the second radiating edge B21 being two opposite sides of the clear side S1.

[0084] Therefore, in some embodiments, when radiation is carried out through a clear side surface S1, the matching adjustment is achieved through the matching gap 112 of this application, which can also save the use of matching units or matching elements, save costs, and avoid the space occupation of matching units or matching elements, which is beneficial to miniaturization.

[0085] In some embodiments, such as Figures 1-3 As shown in the figure, both the first radiating edge B11 and the second radiating edge B21 are straight strips.

[0086] In some embodiments, the number of at least one first connecting edge B12 is at least one, and each first connecting edge B12 is any shape such as a straight line, an arc, or an irregular shape. The number of at least one second connecting edge B22 is at least one, and each second connecting edge B22 is any shape such as a straight line, an arc, or an irregular shape. That is, in some embodiments, the number and shape of at least one first connecting edge B12 and at least one second connecting edge B22 can be set as needed.

[0087] In this application, the shapes of at least one first radiating edge B11 and at least one first connecting edge B12 can be the shapes of the projections of at least one first radiating edge B11 and at least one first connecting edge B12 along the thickness direction of the conductive plate 11, and the shapes of at least one second radiating edge B21 and at least one second connecting edge B22 can specifically be the shapes of the projections of at least one second radiating edge B21 and at least one second connecting edge B22 along the thickness direction of the ground plane 12. In some embodiments, since the conductive plate 11 and the ground plane 12 are plate-shaped and their thicknesses are negligible relative to the projected areas of the conductive plate 11 and the ground plane 12 along their respective thickness directions, at least one first radiating edge B11 and at least one first connecting edge B12 can also be the outer peripheral edge of the conductive plate 11, i.e., the outline edge, and at least one second radiating edge B21 and at least one second connecting edge B22 can also be the outer peripheral edge of the ground plane 12, i.e., the outline edge.

[0088] In this application, the thickness direction of the conductive plate 11 can be perpendicular to the surface with the largest area of ​​the conductive plate 11, and the thickness direction of the ground plane 12 can also be perpendicular to the surface with the largest area of ​​the ground plane 12. In some embodiments, the thickness directions of the conductive plate 11 and the ground plane 12 are approximately the same, and the conductive plate 11 and the ground plane 12 are arranged at intervals along the thickness direction of the conductive plate 11 or the ground plane 12, and the surfaces with the largest areas of the conductive plate 11 and the ground plane 12 are approximately parallel.

[0089] In some embodiments, such as Figures 1-3 As shown, at least one first connecting edge B12 includes three first connecting edges B12, which are straight and sequentially connected between the two ends of the first radiating edge B11. Adjacent first connecting edges B12 are perpendicularly connected, and the first radiating edge B11 is also perpendicularly connected to the adjacent first connecting edge B12. The conductive plate 11 is approximately square. Figures 1-3 As shown, at least one second connecting edge B22 includes three second connecting edges B22. The three second connecting edges B22 are straight and are connected sequentially between the two ends of the second radial edge B21. Adjacent second connecting edges B22 are perpendicularly connected, and the second radial edge B21 is also perpendicularly connected to the adjacent second connecting edges B22. The grounding plate 12 is also approximately square.

[0090] As previously stated, the projection of at least one first radiating edge B11 of the conductive plate 11 onto the ground plane 12 is approximately coincident with at least one second radiating edge B21; the projection of at least one first connecting edge B12 of the conductive plate 11 onto the ground plane 12 is approximately coincident with at least one second connecting edge B22. Therefore, the cavity antenna T1 is approximately cuboid or cube.

[0091] Please see Figure 4This is another structural schematic diagram of the antenna assembly 1 in some embodiments of this application.

[0092] like Figure 4 As shown, in some embodiments, when at least one first radiating edge B11 includes only one first radiating edge B11 and at least one second radiating edge B21 includes only one second radiating edge B21, the number of at least one first connecting edge B12 and at least one second connecting edge B22 may both be only one, and both are arc-shaped.

[0093] Among them, such as Figure 4 As shown, the center of curvature of the first connecting edge B12 faces the side where at least one first radiating edge B11 is located, and the center of curvature of the second connecting edge B22 faces the side where at least one second radiating edge B21 is located. Thus, as... Figure 4 As shown, the cavity antenna T1 formed by the conductive plate 11, ground plane 12 and conductive wall 13 of the antenna assembly 1 is roughly a semi-cylinder, and the conductive wall 13 is roughly an arc surface.

[0094] Therefore, by setting at least one first connecting edge B12 and at least one second connecting edge B22 as an arc-shaped structure, the overall size of the cavity antenna T1 can be effectively reduced.

[0095] in, Figure 4 For the purpose of merely illustrating the different shapes of at least one first connecting edge B12 and at least one second connecting edge B22, other structures may be the corresponding structures in any of the foregoing embodiments.

[0096] Please see Figure 5 This is a schematic diagram of other structures of antenna assembly 1 in some embodiments of this application.

[0097] like Figure 5 As shown, in some embodiments, when at least one first radiating edge B11 includes only one first radiating edge B11 and at least one second radiating edge B21 includes only one second radiating edge B21, the number of at least one first connecting edge B12 and at least one second connecting edge B22 may both be only two, and both are straight lines.

[0098] Among them, such as Figure 5 As shown, one end of one of the first connecting edges B12 is connected to one end of the other first connecting edge B12, and both ends of the first radiating edge B11 are connected to the other ends of the two first connecting edges B12 respectively, thus, the conductive plate 11 is approximately triangular. Figure 5As shown, one end of one of the second connecting edges B22 is connected to one end of the other second connecting edge B22, and both ends of the second radiating edge B21 are connected to the other ends of the two second connecting edges B22 respectively. Thus, the ground plane 12 is also approximately triangular. Therefore, the cavity antenna T1 formed by the conductive plate 11, the ground plane 12, and the conductive wall 13 of the antenna assembly 1 is approximately triangular, and the conductive wall 13 is approximately a bent surface.

[0099] As mentioned above, the first connecting edge B12 and the second connecting edge B22 can also be any shape, such as an irregular shape, and the number of the first connecting edge B12 and the second connecting edge B22 can be other numbers, which will not be illustrated in the attached figures here.

[0100] Please see Figure 6 This is a schematic diagram of the electric field distribution of antenna component 1 in some embodiments of this application.

[0101] in, Figure 6 It can be in Figure 1 The electric field distribution is shown based on the antenna assembly 1 shown.

[0102] Antenna assembly 1 includes a clearance side surface S1, such as Figure 6 As shown, since there is only one clear side surface S1, the point of maximum open-circuit electric field is located at the middle of this clear side surface S1. The theoretical dimension between this point and the surrounding grounded conductive wall 13 must be λ / 4 to meet the minimum length boundary condition requirement for electromagnetic oscillation. Therefore, the length of the clear side surface S1 of antenna assembly 1 needs to be 2. Only when λ / 4 = λ / 2 can the minimum length boundary condition requirement for electromagnetic oscillation be met. Here, λ is the wavelength corresponding to the preset frequency band.

[0103] Among them, such as Figure 6 As shown, the voltage at the middle position of the clearance side S1 of the conductive plate 11 of the antenna assembly 1 is the maximum, which is Vmax. That is, the voltage at the middle position of the first radiating edge B11 is the maximum, which is Vmax. The grounding plate 12 is grounded, and the voltage is 0. Therefore, the voltage difference between the conductive plate 11 and the grounding plate 12 at the middle position of the clearance side S1 of the antenna assembly 1 is Vmax. These are the two relative positions with the maximum voltage difference between the conductive plate 11 and the grounding plate 12, which are the points with the maximum electric field.

[0104] In some embodiments, the clearance side surface S1 is generally rectangular, and the first radiating edge B11 and the second radiating edge B21 correspond to the two long sides of the clearance side surface S1, and the length of the clearance side surface S1 is the length of the corresponding first radiating edge B11 and the second radiating edge B21.

[0105] Therefore, in some embodiments, when the conductive plate 11 includes only a first radiating edge B11, the ground plane 12 includes only a second radiating edge B21, and the antenna assembly 1 includes only a clear side S1, the lengths of the first radiating edge B11 and the second radiating edge B21 are approximately λ / 2, where λ is the wavelength corresponding to the preset frequency band.

[0106] in, Figure 6 In the text, the power supply gap 111 and the matching gap 112 are omitted.

[0107] Please see Figure 7 This is a schematic diagram of the structure of antenna assembly 1 in a modified example of some embodiments of this application.

[0108] In some embodiments, such as Figure 7 As shown, at least one first radiating edge B11 includes two first radiating edges B11, one end of which is connected to one end of the other first radiating edge B11, and the other end of which is connected to the other end of which is connected by at least one first connecting edge B12; at least one second radiating edge B21 includes two second radiating edges B21, one end of which is connected to one end of the other second radiating edge B21, and the other end of which is connected to the other end of which is connected by at least one second connecting edge B22. The two first radiating edges B11 and the two second radiating edges B21 are respectively arranged opposite to each other and spaced apart. The conductive plate 11, the ground plane 12, and the conductive wall 13 form a cavity antenna T1 with two clearance sides S1, where one first radiating edge B11 and one second radiating edge B21 are two opposite sides of one clearance side S1, and the other first radiating edge B11 and the other second radiating edge B21 are two opposite sides of the other clearance side S1.

[0109] That is, in some embodiments, at least one first radiating edge B11 includes two first radiating edges B11, and at least one second radiating edge B21 includes two second radiating edges B21. The conductive plate 11, the grounding plate 12, and the conductive wall 13 form a cavity antenna T1 with two clearance sides S1. One of the first radiating edges B11 and one of the second radiating edges B21 are two opposite sides of one clearance side S1, and the other first radiating edge B11 and the other second radiating edge B21 are two opposite sides of the other clearance side S1. Therefore, in some embodiments, the cavity antenna T1 has two clearance sides S1, and the point of maximum electric field is the intersection of the two first radiating edges B11. Thus, the length of both first radiating edges B11 is equal to λ / 4, so that the distance between the point of maximum electric field of the cavity antenna T1 and the grounded conductive wall 13 still satisfies λ / 4, satisfying the boundary condition of the minimum size required for electromagnetic oscillation. At the same time, the length of the first radiating edge B11 and the second radiating edge B21 located on the clearance side only needs to be λ / 4, which can effectively reduce the overall size and effectively reduce the space occupation.

[0110] Among them, such as Figure 7 As shown, one of the first radiating edges B11 includes opposing first ends D1 and D2, and the other first radiating edge B11 includes opposing third ends D3 and D4. The first end D1 of one first radiating edge B11 is connected to the third end D3 of the other first radiating edge B11. At least one first connecting edge B12 is connected between the second end D2 of one first radiating edge B11 and the fourth end D4 of the other first radiating edge B11. One of the second radiating edges B21 includes opposing fifth ends D5 and D6, and the other second radiating edge B21 includes opposing seventh ends D7 and D8. The fifth end D5 of one second radiating edge B21 is connected to the seventh end D7 of the other second radiating edge B21. At least one second connecting edge B22 is connected between the sixth end D6 of one second radiating edge B21 and the eighth end D8 of the other second radiating edge B21.

[0111] Therefore, in this application, the corresponding terminals of the two first radiating edges B11 are connected together, and at least one first connecting edge B12 is connected between other corresponding terminals of the two first radiating edges B11, forming a complete outer periphery of the conductive plate 11. The two corresponding terminals of the two second radiating edges B21 are connected together, and at least one second connecting edge B22 is connected between other two corresponding terminals of the two second radiating edges B21, forming a complete outer periphery of the grounding plate 12.

[0112] In some embodiments, such as Figure 7As shown, and as before, the projections of the two first radiating edges B11 and at least one first connecting edge B12 of the conductive plate 11 onto the ground plane 12 coincide with the two second radiating edges B21 and at least one second connecting edge B22 of the ground plane 12, respectively.

[0113] Thus, the projection of the conductive plate 11 onto the ground plane 12 coincides with the ground plane 12, thereby forming a better cavity antenna T1.

[0114] As mentioned above, the overlap of A and B in this application is not a strict overlap, but rather an approximate overlap, with some deviation allowed. If A and B are parallel and the distance between them is less than a preset distance, such as 5 mm, or if A and B intersect and the angle between them is less than a preset angle, such as 20°, they can also be considered as overlapping.

[0115] In some embodiments, both first radial edges B11 are straight lines and perpendicularly connected, and both second radial edges B21 are straight lines and perpendicularly connected. There is at least one first connecting edge B12, each of which is straight, curved, or irregular in shape. There is at least one second connecting edge B22, each of which is straight, curved, or irregular in shape.

[0116] That is, in some embodiments, the two first radiating edges B11 are both straight and vertically connected, the two second radiating edges B21 are both straight and vertically connected, and the number and shape of at least one first connecting edge B12 and at least one second connecting edge B22 can be set as needed.

[0117] In this application, the perpendicular connection between A and B does not refer to a strict perpendicularity, but rather to a roughly perpendicular one. For example, the angle between A and B can be between 80° and 100°, etc., all of which can be considered perpendicular.

[0118] In some embodiments, such as Figure 7 As shown, at least one first connecting edge B12 includes two first connecting edges B12, which are straight and are connected sequentially between the second end D2 of one first radiating edge B11 and the fourth end D4 of the other first radiating edge B11; at least one second connecting edge B22 includes two second connecting edges B22, which are straight and are connected sequentially between the sixth end D6 of one second radiating edge B21 and the eighth end D8 of the other second radiating edge B21.

[0119] That is, in some embodiments, at least one first connecting edge B12 and at least two second connecting edges B22 may each be two, and both may be straight lines.

[0120] In some embodiments, such as Figure 7 As shown, the two first connecting edges B12 are parallel to the two first radiating edges B11, and the two second connecting edges B22 are parallel to the two second radiating edges B21. The two first connecting edges B12 are also perpendicularly connected to each other, and the two second connecting edges B22 are also perpendicularly connected. Both the conductive plate 11 and the grounding plate 12 are approximately square. Figure 7 As shown, the cavity antenna T1 is roughly square.

[0121] In some embodiments, since both first radiating edges B11 are straight and approximately perpendicularly connected, and both second radiating edges B21 are straight and approximately perpendicularly connected, and the lengths of the two first radiating edges B11 are approximately equal (λ / 4), the two first connecting edges B12 are also approximately perpendicularly connected and have equal lengths (λ / 4). Furthermore, the lengths of the two second radiating edges B21 are approximately equal (λ / 4), and the two second connecting edges B22 are also approximately perpendicularly connected and have equal lengths (λ / 4). In this case, the cavity antenna T1 is formed as a cavity antenna whose projection along the direction from the conductive plate 11 to the ground plane 12 is square. In this case, compared to... Figure 1 The rectangular cavity antenna shown in the figure can effectively reduce its size, almost half that of a traditional rectangular cavity antenna, thus reducing its volume by half.

[0122] in, Figure 7 The main difference between the antenna assembly 1 in this embodiment and the previous embodiment is that at least one first radiating edge B11 includes two first radiating edges B11, at least one second radiating edge B21 includes two second radiating edges B21, and the conductive plate 11, ground plane 12 and conductive wall 13 form a cavity antenna T1 with two clear sides S1. Other structures can be the corresponding structures in any of the previous embodiments.

[0123] Please see Figure 8 This is a schematic diagram of the structure of antenna assembly 1 in another modified example of some embodiments of this application. Figure 8 As shown, at least one first connecting edge B12 includes a first connecting edge B12, which can be any shape such as arc, straight line or irregular shape, and is connected between the second end D2 of one of the first radiating edges B11 and the fourth end D4 of the other radiating edge B11; at least one second connecting edge B22 includes a second connecting edge B22, which can be any shape such as arc, straight line or irregular shape, and is connected between the sixth end D6 of one of the second radiating edges B21 and the eighth end D8 of the other second radiating edge B21.

[0124] That is, in some embodiments, the number of at least one first connecting edge B12 and at least one second connecting edge B22 may each be only one.

[0125] in, Figure 8 In this configuration, at least one first connecting edge B12 and at least one second connecting edge B22 are both arc-shaped. The center of curvature of the first connecting edge B12 faces the side containing the two first radiating edges B11, and the center of curvature of the second connecting edge B22 faces the side containing the two second radiating edges B21. Thus, as... Figure 8 As shown, the cavity antenna T1 formed by the conductive plate 11, ground plane 12 and conductive wall 13 of the antenna assembly 1 is roughly fan-shaped, and the conductive wall 13 is roughly arc-shaped.

[0126] Therefore, by setting at least one first connecting edge B12 and at least one second connecting edge B22 as an arc-shaped structure, the overall size of the cavity antenna T1 can be further reduced.

[0127] Please see Figure 9 This is a schematic diagram of another modified example of the antenna assembly 1 in some embodiments of this application. Figure 9 As shown, at least one first connecting edge B12 and at least one second connecting edge B22 are both single and linear. Therefore, as... Figure 9 As shown, the cavity antenna T1 formed by the conductive plate 11, ground plane 12, and conductive wall 13 of antenna assembly 1 is approximately triangular, while the conductive wall 13 is planar. Compared to... Figure 7 The structure shown, by setting at least one first connecting edge B12 and at least one second connecting edge B22 as a straight connecting edge, can further reduce the size by nearly half, which is more conducive to reducing the overall size of the cavity antenna T1.

[0128] Obviously, as mentioned above, in some embodiments, at least one first connecting edge B12 includes a first connecting edge B12, and a first connecting edge B12 may also be an irregular shape or any other shape; at least one second connecting edge B22 includes a second connecting edge B22, and a second connecting edge B22 may also be an irregular shape or any other shape, which will not be illustrated in the accompanying drawings here.

[0129] Please see Figure 10 This is a schematic diagram of another electric field distribution of antenna assembly 1 in some embodiments of this application. Figure 10 For Figure 7 The distribution of the electric field is illustrated using antenna assembly 1 as an example. Figure 10As shown, the antenna assembly 1 of this application has two clearance sides S1 where the maximum electric field points are the intersection points N1 of the two first radiating edges B11, that is, at the first end D1 of one of the first radiating edges B11 and the third end D3 of the other first radiating edge B11. Since the lengths of both first radiating edges B11 are equal to λ / 4, the distance between the maximum electric field point of the cavity antenna T1 and the grounded conductive wall 13 still satisfies λ / 4, satisfying the boundary condition for the minimum size required for electromagnetic oscillation. Simultaneously, the length of the edge located on the clearance side only needs to be λ / 4, effectively reducing the overall size. For example, relative to... Figure 1 The antenna assembly 1 shown can reduce its volume by approximately half, effectively minimizing its space occupation. For clarity, [details omitted]. Figure 10 The labels of some components have been omitted.

[0130] Among them, such as Figure 10 As shown, the voltage is greatest at point N1, the intersection of the two first radiating edges B11 of the conductive plate 11, i.e. Figure 10 As shown in the figure, Vmax is the intersection point N2 of the two second radiating edges B21 of the grounding plate 12, which corresponds to the intersection point N1. Since the grounding plate 12 is grounded, the voltage at each position of the grounding plate 12 is 0. Therefore, the voltage difference between the intersection point N1 of the two first radiating edges B11 of the conductive plate 11 and the intersection point N2 of the two second radiating edges B21 of the grounding plate 12 is Vmax, which are the two relative positions with the maximum voltage difference between the conductive plate 11 and the grounding plate 12, and thus the points with the maximum electric field.

[0131] in, Figure 10 In this paper, the power supply gap 111 and the matching gap 112 are also omitted.

[0132] In some embodiments, such as Figure 1 , Figure 7 As shown in the figure, the cavity antenna T1 formed by the conductive plate 11, the ground plane 12 and the conductive wall 13 is a hollow cavity, and the clear side S1 is a side with an opening.

[0133] That is, in some embodiments, the conductive plate 11, the ground plane 12, and the conductive wall 13 constitute the housing of the cavity antenna T1, and the space surrounded by the conductive plate 11, the ground plane 12, and the conductive wall 13 is empty. Therefore, as mentioned above, since the matching gap 112 can realize the function of a matching unit or matching element, the matching unit or matching element can be omitted, thus saving costs and reducing the space occupied by the matching unit or matching element, which is beneficial for overall miniaturization and reduces space occupation.

[0134] When the cavity antenna T1 formed by the conductive plate 11, the ground plane 12, and the conductive wall 13 is a hollow cavity, the conductive wall 13 can be a plate-like structure and is welded to at least one first connecting edge B12 of the conductive plate 11 and at least one second connecting edge B22 of the ground plane 12, or the conductive plate 11, the ground plane 12, and the conductive wall 13 can be integrally formed. In some embodiments, the conductive wall 13 can also be a structure such as conductive foam connected between at least one first connecting edge B12 of the conductive plate 11 and at least one second connecting edge B22 of the ground plane 12.

[0135] In this application, the conductive plate 11, the ground plane 12, and the conductive wall 13 can all be made of conductive materials, such as copper, iron, silver, or other metallic materials. In some embodiments, the conductive wall 13 can also be conductive foam.

[0136] Please refer to the following: Figure 11 and Figure 12 , Figure 11 This is a further structural schematic diagram of the antenna assembly 1 in some embodiments of this application. Figure 12 for Figure 11 The diagram shows an exploded view of part of the structure of antenna assembly 1.

[0137] like Figure 11 and Figure 12 As shown, in some embodiments, the antenna assembly 1 further includes a dielectric plate 14, which includes opposing first surfaces 14a and second surfaces 14b, and at least one radiating side 14c and at least one connecting side 14d. A conductive plate 11 is disposed on the first surface 14a of the dielectric plate 14, and a ground plane 12 is disposed on the second surface 14b of the dielectric plate 14. At least one radiating side 14c is directly opposite to at least one first radiating edge B11 and at least one second radiating edge B21. At least one radiating side 14c is located at at least one clear side S1. A conductive wall 13 is connected between at least one first connecting edge B12 of the conductive plate 11 and at least one second connecting edge B22 of the ground plane 12, and is disposed on at least one connecting side 14d of the dielectric plate 14.

[0138] Therefore, in some embodiments, the antenna assembly 1 further includes a dielectric substrate 14, with a conductive plate 11 and a ground plane 12 disposed on the dielectric substrate 14. The stability of the structure can be improved through the load-bearing function of the dielectric substrate.

[0139] Furthermore, the cavity antenna T1 is internally fitted with a dielectric substrate 14, which generally has a dielectric constant greater than 1. ,set up The wavelength of electromagnetic wave signals in a vacuum. The wavelength of the electromagnetic wave signal in dielectric substrate 14 is denoted as λ. , Let S be the dielectric constant of the medium inside the cavity. The dielectric constant of air is approximately 1. As before, when the cavity antenna T1 includes only one clear side S1, the length of the clear side S1 of the cavity antenna T1, that is, the length of the first radiating edge B11 and the second radiating edge B21, is 1 / 2 of the wavelength of the electromagnetic wave signal in the preset frequency band. When the cavity antenna T1 includes two clear sides S1, the length of each clear side S1 of the cavity antenna T1, that is, the length of each first radiating edge B11 and the second radiating edge B21, is 1 / 4 of the wavelength of the electromagnetic wave signal in the preset frequency band. However, both are in a fixed proportional relationship with the corresponding wavelength. Therefore, when the dielectric plate 14 is added, the corresponding wavelength will be reduced from that in air. Become That is, it will become smaller. Therefore, compared to the hollow cavity antenna T1, when the antenna assembly 1 also includes the dielectric substrate 14, the size of the antenna assembly 1 can be reduced to that of the hollow cavity antenna T1. This doubles the size, thus achieving a miniaturized effect.

[0140] in, Figure 11 In order to be in Figure 1 Further structures are illustrated based on antenna assembly 1 shown. For example... Figure 11 As shown, in some embodiments, the dielectric substrate 14 may include a radiating side 14c, the conductive plate 11 is disposed on the first surface 14a of the dielectric substrate 14, the ground plane 12 is disposed on the second surface 14b of the dielectric substrate 14, the conductive plate 11 also includes only a first radiating edge B11, the ground plane 12 includes only a second radiating edge B21, the cavity antenna T1 includes only a clearance side S1, the first radiating edge B11 and the second radiating edge B21 are two opposite sides of the clearance side S1, the radiating side 14c constitutes the main part of the clearance side S1, and can together with the first radiating edge B11 and the second radiating edge B21 form a complete clearance side S1.

[0141] In this application, since the dielectric plate 14 allows electromagnetic wave signals to pass through, the side where the radiation side 14c is located also allows electromagnetic wave signals to pass through, so that the clearance side S1 is still the side that allows electromagnetic wave signals to radiate out.

[0142] To illustrate this more clearly, Figure 11 Some of the labels in the text have been omitted.

[0143] Please see Figure 13 This is a further structural schematic diagram of the antenna assembly 1 in some embodiments of this application.

[0144] in, Figure 13 In order to be in Figure 7 Further structures are illustrated based on the antenna assembly 1 shown.

[0145] That is, in some embodiments, the dielectric substrate 14 may include two radiating sides 14c, the conductive plate 11 is disposed on the first surface 14a of the dielectric substrate 14, the ground plane 12 is disposed on the second surface 14b of the dielectric substrate 14, the conductive plate 11 includes two first radiating edges B11, the ground plane 12 also includes two second radiating edges B21, the cavity antenna T1 includes two clearance sides S1, one of the first radiating edges B11 and one of the second radiating edges B21 are two opposite edges of one clearance side S1, one of the radiating sides 14c constitutes the main part of the clearance side S1, and can together with one of the first radiating edges B11 and one of the second radiating edges B21 form a complete clearance side S1, the other first radiating edge B11 and the other second radiating edge B21 are two opposite edges of the other clearance side S1, the other radiating side 14c constitutes the main part of the other clearance side S1, and can together with another first radiating edge B11 and another second radiating edge B21 form another complete clearance side S1.

[0146] in, Figure 11 and Figure 13 They are respectively in Figure 1 and Figure 7 The example shown is an antenna assembly 1 with an added dielectric substrate 14. The dielectric substrate 14 can be added to the antenna assembly 1 in any of the aforementioned embodiments, which will not be described in detail here.

[0147] In the accompanying drawings of this application, the guide lines of most of the obscured objects are indicated by dashed lines to make them easier to distinguish.

[0148] In some embodiments, the conductive plate 11 may be stacked on the first surface 14a of the dielectric plate 14 and fixed to the first surface 14a of the dielectric plate 14 by means of bonding or the like. The ground plate 12 may also be stacked on the second surface 14b of the dielectric plate 14 and fixed to the first surface 14a of the dielectric plate 14 by means of bonding or the like.

[0149] In some embodiments, the conductive plate 11 may be a conductive layer formed on the first surface 14a of the dielectric plate 14 by means of electroplating or the like, and the ground plate 12 may be a conductive layer formed on the second surface 14b of the dielectric plate 14 by means of electroplating or the like.

[0150] In some embodiments, when the antenna assembly 1 further includes a dielectric plate 14, the conductive wall 13 can be fixed to at least one connecting side 14d of the dielectric plate 14 by means of adhesive bonding or the like, and connected between at least one first connecting side B12 of the conductive plate 11 and at least one second connecting side B22 of the ground plane 12.

[0151] In some embodiments, the conductive wall 13 may also be a conductive layer formed on at least one connection side 14d of the dielectric substrate 14 by means of electroplating or the like.

[0152] Please see Figure 14 This is a further structural schematic diagram of the antenna assembly 1 in some embodiments of this application.

[0153] In some embodiments, the conductive wall 13 may also be formed by forming a plurality of conductive holes K0 that electrically connect at least one first connecting edge B12 and at least one second connecting edge B22 between the conductive plate 11 and the ground plate 12.

[0154] That is, in some embodiments, when the antenna assembly 1 includes a dielectric substrate 14, at least one row of holes can be drilled at or near at least one first connecting edge B12 and at least one second connecting edge B22 of the dielectric substrate 14 to form a plurality of conductive holes K0. The inner wall of the conductive holes K0 is coated with conductive material or the interior of the conductive holes K0 can be filled with conductive material, thereby forming a conductive path connecting the first connecting edge B12 and the second connecting edge B22. The arrangement direction of the plurality of conductive holes K0 is approximately the same as the extension direction of at least one first connecting edge B12 and at least one second connecting edge B22, thereby forming a conductive wall 13.

[0155] Therefore, in some embodiments, forming the conductive wall 13 by forming conductive holes K0 in the dielectric substrate 14 is more conducive to the formation of the conductive wall 13 and can achieve a better electromagnetic shielding effect.

[0156] Among them, such as Figure 14 As shown, several conductive holes K0 are arranged at intervals, but overall they can still achieve electromagnetic shielding and prevent electromagnetic wave signals from radiating from this side.

[0157] In some embodiments, when the antenna assembly 1 includes a dielectric substrate 14, a conductive plate 11 is disposed on a first surface 14a of the dielectric substrate 14, and the projection of the conductive plate 11 on one side of the dielectric substrate 14 is within the range of the first surface 14a of the dielectric substrate 14, for example, coinciding with or smaller than the first surface 14a. A ground plane 12 is disposed on a second surface 14b of the dielectric substrate 14, and the projection of the ground plane 12 on one side of the dielectric substrate 14 is within the range of the second surface 14b of the dielectric substrate 14, for example, coinciding with or smaller than the second surface 14b. Thus, the projections of at least one connecting edge B12 of the conductive plate 11 and at least one second connecting edge B22 of the ground plane 12 on one side of the dielectric substrate 14 are both located within the dielectric substrate 14. Therefore, conductive holes K0 can be opened at positions approximately corresponding to at least one connecting edge B12 and at least one second connecting edge B22 on the dielectric substrate 14 to electrically connect at least one first connecting edge B12 and at least one second connecting edge B22.

[0158] in, Figure 14 In the middle Figure 11 Based on the structure of the antenna assembly 1 shown, the conductive wall 13 is further illustrated as a structure formed through conductive holes K0. That is, the cavity antenna T1 has only one clear side surface S1, at least one first connecting edge B12 including three first connecting edges B12, at least one second connecting edge B22 including three second connecting edges B22, and adjacent first connecting edges B12 are perpendicularly connected, and the first radiating edge B11 is also perpendicularly connected to the adjacent first connecting edge B12. The conductive plate 11 is approximately square. At least one second connecting edge B22 includes three second connecting edges B22, the three second connecting edges B22 are straight and sequentially connected between the two ends of the second radiating edge B21, and adjacent second connecting edges B22 are perpendicularly connected, and the second radiating edge B21 is also perpendicularly connected to the adjacent second connecting edge B22. The ground plane 12 is also approximately square. At this time, the conductive hole K0 may include three rows of conductive holes K0, the three rows of conductive holes K0 correspond to the positions of the three first connecting edges B12 and the three second connecting edges B22 respectively, and the arrangement direction of each row of conductive holes K0 is the same as the extension direction of the corresponding first connecting edge B12 and the second connecting edge B22, and electrically connects the corresponding first connecting edge B12 and the second connecting edge B22 to form a corresponding conductive wall 13.

[0159] In some embodiments, the conductive plate 11, the ground plane 12, and the dielectric plate 14 are respectively two metal layers and a dielectric layer located between two metal layers in a circuit board (also known as a printed circuit board: PCB).

[0160] That is, in some embodiments, the cavity antenna T1 can be formed directly through a circuit board. For example, conductive holes K0 are drilled on the dielectric layer between two metal layers of the circuit board to form conductive walls at the positions corresponding to the first connecting edge B12 and the second connecting edge B22. However, no processing is performed on the corresponding clearance side S1, that is, the position corresponding to the first radiating edge B11 and the second radiating edge B21, to form a clearance side S1 that can be used to radiate electromagnetic wave signals.

[0161] When the cavity antenna T1 is formed by a circuit board, the circuit board can be a circuit board with two metal layers and a dielectric layer between the two metal layers, or it can be a circuit board including multiple metal layers and multiple dielectric layers. The cavity antenna T1 can be formed by any of the dielectric layers between the two metal layers and the two metal layers on both sides of the dielectric layer.

[0162] In some embodiments, please refer back to the reference. Figure 11 In some embodiments, the width W0 of the feed gap 111 in this application, that is, the distance from the first gap wall F11 to the second gap wall F12 of the feed gap 111, can be 1~2 mm. This is beneficial for improving radiation efficiency and also for the connection between the inner core L11 and outer core L12 of the RF line Line1 and the two gap walls. In some embodiments, the inner core L11 of the RF line Line1 usually needs to have part of the outer core L12 removed to expose it. Typically, for ease of removal, only 2 mm or less of the outer core is removed. Therefore, the distance between the outer core L12 and the exposed inner core L11 is usually less than 2 mm. Thus, the distance between the first gap wall F11 and the second gap wall F12 of the feed gap 111 can be 1~2 mm, which is beneficial for the connection between the inner core L11 and outer core L12 of the RF line Line1 and the two gap walls.

[0163] In some embodiments, such as Figure 11 As shown, let L1 be the distance between the target first connecting edge B12, which is closer to the feed gap 111, and the first gap wall F11 of the feed gap 111. The matching gap 112 is square, and the length direction of the matching gap 112 is approximately parallel to the extension direction of the target first radiating edge B11 connected to the feed gap 111. The apex of one long side of the matching gap 112 is connected to the second gap end 111b of the feed gap 111. The matching gap 112 is equivalent to extending from the first gap wall F11 of the feed gap 111 toward the target first connecting edge B12, and the length of the matching gap 112 is L2.

[0164] In some embodiments, the length L2 of the matching gap 112 is less than the distance L1 between the target first connecting edge B12 and the first gap wall F11 of the power supply gap 111, and L1-L2 is approximately equal to 1.5-4 mm. That is, the distance between the matching gap 112 and the target first connecting edge B12 is approximately 1.5-4 mm, so that when the conductive wall 13 is formed by forming a conductive hole K0 on the dielectric substrate 14, clearance space can be provided for the conductive hole K0.

[0165] Obviously, in some embodiments, when the conductive wall 13 is fixed to at least one connecting side 14d of the dielectric plate 14 by means of bonding or electroplating, the distance between the matching gap 112 and the target first connecting side B12 can be smaller, for example, less than 1.5 mm.

[0166] In some embodiments, with Figure 11 Taking the structure shown as an example, the cavity antenna T1 is roughly a cuboid. Let the length of the cavity antenna T1, that is, the length of the first radiating side B11 and the second radiating side B21, be L. Let the width of the cavity antenna T1 be W, that is, the length of the first connecting side B12 connected to the first radiating side B11 and the second connecting side B22 connected to the second radiating side B21, be W. Let the length of the feed slot 111 (that is, the distance from the first slot end 111a to the second slot end 111b of the feed slot 111) plus the width of the matching slot 112 be W1. Let the width of the matching slot 112 be W2.

[0167] In some embodiments, taking the preset frequency band as the WiFi 2.4G band as an example, due to the dielectric constant of the circuit board... , L=32mm, W=16mm, L1=8mm, L2=6mm, W1=4mm, W2=2mm.

[0168] The dimensions mentioned above are only based on... Figure 11 The example shown uses the WiFi 2.4G frequency band as the preset frequency band.

[0169] Depending on the structure of the cavity antenna T1 and / or the preset frequency band, the above dimensions can be other suitable dimensions.

[0170] When the antenna assembly 1 includes the dielectric substrate 14, the size reduction of the cavity antenna T1 can vary depending on the dielectric constant of the dielectric substrate 14.

[0171] In some embodiments, such as Figure 1 As shown in the figure, the projection of the ground plane 12 on one side of the conductive plate 11 roughly coincides with the conductive plate 11, making the structure more regular.

[0172] In some embodiments, the projection of the ground plane 12 on one side of the conductive plate 11 may also be located outside the feed gap 111 and the matching gap 112, thereby making the ground plane 12 directly opposite the more complete conductive portion in the conductive plate 11, thus improving the antenna performance of the cavity antenna T1.

[0173] The cavity antenna T1 can be designed into any shape according to the space it is located in.

[0174] Among them, such as Figure 2 As shown, in some embodiments, the antenna assembly 1 further includes a feed source 15 for providing a power supply signal.

[0175] In some embodiments, the antenna assembly 1 may also include the aforementioned radio frequency line Line1. The feed source 15 can be used to output two feed signals, a first feed signal and a second feed signal, and transmit them through the aforementioned radio frequency line Line1 to the two slot walls of the feed slot 111 of the conductive plate 11 for balanced feeding.

[0176] In some embodiments, when the cavity antenna T1 is unbalancedly fed, the radio frequency line Line1 can be omitted, and the feed source 15 is used to output a feed signal. The feed source 15 can be connected to one of the gap walls of the feed gap 111 of the conductive plate 11 through electrical connectors such as springs and flexible circuit boards to feed the signal.

[0177] The preset frequency band can be any frequency band, such as a high-frequency band like WiFi-2.4 / 5G, a mid-to-high-frequency band like GPS L1 (1575MHz) or GPS L5 (1176MHz), or even a low-frequency band. Since lower frequency bands require larger antenna sizes, the antenna component 1 of this application can effectively reduce the overall size and adapt to even lower frequency bands, making the implementation of even lower frequency bands possible.

[0178] Therefore, in this application, by forming a cavity antenna T1, radiation can be achieved through the clearance side, and good antenna radiation performance can be achieved with only a certain clearance near the clearance side, thus requiring very little clearance area and enabling application in environments with very small clearance areas. Furthermore, in this application, the conductive plate 11 has a feed slot 111 and a matching slot 112 connected to the feed slot 111. The feed slot 111 is used to receive the feed signal, and the matching slot 112 is used to achieve impedance matching adjustment for a preset frequency band. Thus, the matching slot 112 can perform the function of a matching unit or matching element, thereby eliminating the need for a matching unit or matching element, saving costs, and reducing the space occupied by the matching unit or matching element, which is beneficial for overall miniaturization and space occupancy. In addition, in this application, when a cavity antenna T1 with two clearance sides S1 is formed and / or a dielectric substrate is also present inside the cavity antenna T1, the overall volume of the cavity antenna T1 can be effectively reduced, which is beneficial for miniaturization.

[0179] Please see Figure 15 This is a structural block diagram of an electronic device 100 in some embodiments of this application. The electronic device 100 may include the antenna assembly 1 in any of the foregoing embodiments.

[0180] Therefore, the electronic device 100 in this application includes the aforementioned antenna assembly 1. Since the antenna assembly 1 can radiate through the clearance side, and only requires a certain clearance near the clearance side to achieve good antenna radiation performance, the requirement for the clearance area is very small, making it applicable in environments with very small clearance areas. Furthermore, in this application, the conductive plate 11 has a feed slot 111 and a matching slot 112 connected to the feed slot 111. The feed slot 111 is used to receive the feed signal, and the matching slot 112 is used to achieve impedance matching adjustment for a preset frequency band. Thus, the matching slot 112 can perform the function of a matching unit or matching element. Therefore, the matching unit or matching element can be omitted, saving costs and reducing the space occupied by the matching unit or matching element, which is beneficial for overall miniaturization and reduces the internal space occupied by the electronic device 100.

[0181] Please see Figure 16 This is a schematic diagram illustrating a portion of the internal structure of an electronic device 100 in some embodiments of this application. The electronic device 100 may include the antenna assembly 1 in any of the foregoing embodiments.

[0182] in, Figure 16 The diagram illustrates a simple example of antenna assembly 1 located within electronic device 100. (See diagram for example.) Figure 7 As shown, the electronic device 100 includes a plurality of side frames 2, and at least one clear side surface S1 is adjacent to and spaced apart from at least one side frame 2.

[0183] As mentioned above, the conductive plate 11, ground plane 12, and conductive wall 13 of the antenna assembly 1 form a cavity antenna T1 with at least one clearance side surface S1. Generally, the clearance side surface S1 of the cavity antenna T1 is the radiation window for electromagnetic wave signals. Therefore, by arranging at least one clearance side surface S1 adjacent to and spaced apart from at least one side frame 2, electromagnetic wave signals can be transmitted and received using the clearance area near the side frame 2 of the electronic device 100, thereby ensuring antenna performance.

[0184] For example, in some embodiments, when the conductive plate 11, ground plane 12 and conductive wall 13 of the antenna assembly 1 form a cavity antenna T1 with a clearance side surface S1, the clearance side surface S1 can be arranged adjacent to and spaced apart from any side frame 2, so that the electromagnetic wave signal can be transmitted and received using the clearance area near the side frame 2 of the electronic device 100, thereby ensuring antenna performance.

[0185] For example, in some embodiments, when the conductive plate 11, ground plane 12 and conductive wall 13 of the antenna assembly 1 form a cavity antenna T1 with two clearance sides S1, the two clearance sides S1 and S2 can be respectively arranged adjacent to and spaced apart from the two adjacent side frames 2.

[0186] In some embodiments, at least one clear side S1 may be parallel to at least one adjacent side frame 2.

[0187] For example, when the conductive plate 11, ground plane 12 and conductive wall 13 of the antenna assembly 1 form a cavity antenna T1 with two clearance sides S1, the two clearance sides S1 are parallel to the two adjacent side frames 2 respectively.

[0188] As previously stated, in some embodiments, both first radiating edges B11 are straight and perpendicularly connected, and both second radiating edges B21 are straight and perpendicularly connected. Since one of the first radiating edges B11 and one of the second radiating edges B21 are two opposite edges of one clearance side S1, and the other first radiating edge B11 and the other second radiating edge B21 are two opposite edges of another clearance side S1, one clearance side S1 is actually the side defined by one of the first radiating edges B11 and one of the second radiating edges B21, and the other clearance side S1 is the side defined by the other first radiating edge B11 and the other second radiating edge B21. Since both first radiating edges B11 and two of the second radiating edges B21 are straight and perpendicularly connected, the two clearance sides S1 are also perpendicularly connected. Since the adjacent side frames 2 of the electronic device 100 are usually also perpendicular, placing the two clearance sides S1 parallel to the adjacent side frames 2 can help save space occupied by the antenna assembly 1 in the electronic device 100.

[0189] in, Figure 16 The electronic device 100 shown includes an antenna assembly 1 that is designed to... Figure 7 The structure of the antenna assembly 1 shown is illustrated as an example, that is, the structure of the antenna assembly 1 including a cavity antenna T1 with two clear sides S1 is illustrated as an example.

[0190] Please see Figure 17 This is a schematic diagram showing a portion of the internal structure of an electronic device 100 as viewed from the display screen side in some embodiments of this application. For example, Figure 17 As shown, the electronic device 100 also includes a display screen 3, wherein a gap exists between the display screen 3 and the side frame 2 to form a black border area H1, and the projection of at least one clear side surface S1 on the plane of the display screen 3 is located within the black border area H1.

[0191] The black border area H1 between the display screen 3 and the side frame 2 is generally sealed with insulating materials such as glue. Therefore, the black border area H1 can serve as a clearance area. By ensuring that the projection of the clearance side S1 onto the plane of the display screen 3 is located within the black border area H1, the electromagnetic wave signal radiated by the clearance side S1 of the cavity antenna T1 can be conducted to the outside of the electronic device 100 through the black border area H1, thus enabling normal transmission of electromagnetic wave signals and ensuring antenna performance.

[0192] In some embodiments, since the electromagnetic wave signal radiated from the clear side S1 of the cavity antenna T1 is conducted to the outside of the electronic device 100 through the black border area H1, it does not need to be conducted through the side frame 2. The side frame 2 of the electronic device 100 can be made of metal material as a whole, thereby improving the overall appearance of the electronic device 100.

[0193] In some embodiments, the projection of the clear side S1 onto the plane where the display screen 3 is located coincides with the boundary line between the black border area H1 and the edge of the display screen 3.

[0194] The clearance side S1 is approximately perpendicular to the plane of the display screen 3. The projection of the clearance side S1 onto the plane of the display screen 3 is actually a line connecting the projections of the first radiating edge B11 and the corresponding second radiating edge B21 onto the plane of the display screen 3. By aligning the projection of the clearance side S1 onto the plane of the display screen 3 with the boundary line between the black border area H1 and the edge of the display screen 3, the black border area H1 can be maximized for use by the cavity antenna T1. This maximizes the utilization of the clearance area H1, meaning that the electromagnetic wave signal radiated from the clearance side S1 of the cavity antenna T1 can be transmitted to the outside of the electronic device 100 almost entirely through the black border area H1, effectively ensuring antenna performance.

[0195] Obviously, in some embodiments, the portions of the adjacent side frames 2 of the electronic device 100 facing the clearance side S1 of the cavity antenna T1 can also be partially hollowed out. For example, by providing gaps, the electromagnetic wave signals radiated from the clearance side S1 of the cavity antenna T1 can be conducted to the outside of the electronic device 100 through the side frames 2, thereby further increasing the clearance area and further improving the antenna radiation performance.

[0196] Please see Figure 18 This is a schematic side view of a portion of the structure of an electronic device 100 in some embodiments of this application. Figure 18 This is a side view schematic diagram illustrating the internal structure of the electronic device 100 as viewed from its long side.

[0197] like Figure 18 As shown, the electronic device 100 also includes a metal cover plate 4, and the ground plane 12 of the antenna assembly 1 is fixed to the inner surface of the metal cover plate 4 and electrically connected to the metal cover plate 4.

[0198] That is, in some embodiments, the metal cover 4 of the electronic device 100 can serve as the ground of the whole device to provide ground potential, and the ground plane 12 of the antenna assembly 1 can be electrically connected to the metal cover 4 to be grounded.

[0199] In some embodiments, the side of the ground plane 12 facing away from the conductive plate 11 can be electrically connected to the inner surface of the metal cover plate 4 by contacting it. Thus, by attaching the two surfaces together, the bonding stability between the antenna assembly 1 and the metal cover plate 4 can be improved, and the thickness of the electronic device 100 can be reduced.

[0200] In some embodiments, the side of the ground plate 12 facing away from the conductive plate 11 can be attached to the inner surface of the metal cover plate 4 and connected by means of bonding, welding, etc., thereby further improving the stability of the combination between the two.

[0201] In some embodiments, such as Figure 18 As shown, the side of the ground plate 12 facing away from the conductive plate 11 is bonded and fixed to the inner surface of the metal cover plate via a conductive adhesive J1. Therefore, bonding and fixing via the conductive adhesive J1 improves the stability of the connection between the ground plate 12 and the metal cover plate 4, and also enables electrical connection between the two.

[0202] In some embodiments, the conductive adhesive J1 can be a double-sided conductive cloth, and the double-sided conductive cloth is completely attached to the entire surface of the ground plate 12 facing away from the conductive plate 11, thereby improving the stability of the connection between the ground plate 12 and the metal cover plate 4, and also achieving a good electrical connection between the two.

[0203] In some embodiments, the electronic device 100 may also include a motherboard, etc. The feed source 15 may be disposed on the motherboard and connected to the feed gap 111 of the conductive plate 11 through a corresponding feed connector. The feed connector may be a conductive spring, an FPC (flexible printed circuit board), the aforementioned radio frequency line Line1, etc.

[0204] In some embodiments, when the electronic device 100 is an electronic device such as a mobile phone or a tablet computer, the metal cover can be a metal back cover. The metal cover 4 is a structure that integrates the function of a mid-frame. The metal cover 4 is not only used to cover the back of the electronic device 100, but also to provide support for the display screen 3 and the like, and cooperates with the display screen 3 to form a receiving cavity to accommodate various components of the electronic device 100.

[0205] Please see Figure 19 This is a schematic diagram illustrating another portion of the internal structure of the electronic device 100 in some embodiments of this application. Wherein, as... Figure 19 As shown, in some embodiments, the antenna assembly 1 included in the electronic device 100 may also be the aforementioned type. Figure 8 The antenna assembly 1 shown has at least one first connecting edge B12 and at least one second connecting edge B22, which are arc-shaped. The cavity antenna T1 formed by the conductive plate 11, the ground plane 12 and the conductive wall 13 of the antenna assembly 1 is approximately fan-shaped.

[0206] Similarly, at least one clear side S1 of the cavity antenna T1 is adjacent to and spaced apart from at least one side frame 2, while the conductive wall 13 is close to the interior of the electronic device 100. Since the conductive wall 13 is approximately curved, more clearance space can be formed, which facilitates the placement of other functional devices of the electronic device 100.

[0207] Please see Figure 20 This is another schematic diagram illustrating a portion of the internal structure of the electronic device 100 in some embodiments of this application. Wherein, as... Figure 20 As shown, the antenna assembly 1 may include multiple antenna assemblies, each antenna assembly 1 is disposed at a corresponding side frame 2, and the clear side surface S1 of each antenna assembly 1 is adjacent to and spaced apart from the corresponding side frame 2.

[0208] For example, taking an antenna assembly 1 including a cavity antenna T1 with two clear sides S1 as an example, an electronic device 100 includes multiple sets of two adjacent side frames 2, and the antenna assembly 1 may include multiple antenna assemblies. Each antenna assembly 1 is disposed at a set of two adjacent side frames 2, and the two clear sides S1 of each antenna assembly 1 are respectively adjacent to and spaced apart from the corresponding set of two adjacent side frames 2.

[0209] That is, in some embodiments, the electronic device 100 may include a plurality of antenna components 1 as described in any of the foregoing embodiments. Thus, it is possible to deploy a plurality of antenna components 1 as described in this application that have low clearance requirements, which can greatly alleviate the contradiction between the current large number of required antennas and the current small clearance area.

[0210] Among them, the number of groups of two adjacent side frames 2 in the electronic device 100 is four. When the antenna assembly 1 includes a cavity antenna T1 with two clear side frames S1, the number of antenna assemblies 1 can also include up to 4, which can greatly meet the antenna requirements of the current electronic device 100.

[0211] in, Figure 20 The diagram illustrates two antenna components 1 as an example. Obviously, the number of antenna components 1 can also be three or four, and so on. In some embodiments, when the antenna component 1 includes a cavity antenna T1 with a clear side surface S1, multiple antenna components 1 can be disposed on the same side frame 2, which can greatly increase the number of antenna components 1 and meet the antenna requirements of the current electronic device 100.

[0212] In some embodiments, when the electronic device 100 includes multiple antenna components 1 as described in any of the foregoing embodiments, at least some of the antenna components 1 support different frequency bands for transmitting and receiving electromagnetic wave signals. For example, one antenna component 1 supports the GPS frequency band, another antenna component 1 supports the WIFI frequency band, and so on.

[0213] In some embodiments, when the electronic device 100 includes multiple antenna components 1 as described in any of the foregoing embodiments, at least some of the antenna components 1 have different structures. For example, the structure of one antenna component 1 is as follows: Figure 1 The structure shown is such that the structure of another antenna component 1 is as follows: Figure 7 The structure shown, etc. Among them, the structure of antenna assembly 1 that better matches the component layout requirements of the area where antenna assembly 1 is set can be determined according to the component layout requirements of the area where it is set, and antenna assembly 1 with the corresponding structure can be set in that area.

[0214] In some embodiments, such as Figures 16-20 As shown in the figure, the electronic device 100 is a flat-panel electronic device, and the two adjacent side frames 2 are any two adjacent side frames 2 of the electronic device 100. That is, in some embodiments, the electronic device 100 is a flat-panel electronic device, and the two adjacent side frames 2 on which the antenna assembly 1 is disposed can be any two adjacent side frames 2 of the electronic device 100. The antenna assembly 1 can be disposed at a position adjacent to any two adjacent side frames 2 as needed.

[0215] Please see Figure 21This is a simplified overall schematic diagram of an electronic device 100 in some embodiments of this application. In some embodiments, such as Figure 21 As shown, the electronic device 100 is a foldable electronic device, which includes a first body 110 and a second body 120. At least one of the first body 110 and the second body 120 is provided with a display screen 3. The two adjacent side frames 2 are any two adjacent side frames 2 on the first body 110 and / or the second body 120 where the display screen 3 is provided.

[0216] That is, in some embodiments, the electronic device 100 can also be a foldable electronic device. At least one of the first body 110 and the second body 120 of the electronic device 100 is provided with a display screen 3. The side frame 2 is any side frame 2 on the first body 110 and / or the second body 120 where the display screen 3 is provided, so that a black border area H1 can be formed through the gap between it and the display screen 3, which serves as the clearance area of ​​the antenna assembly 1. Thus, as mentioned above, the clearance side surface S1 of the antenna assembly 1 is adjacent to and spaced apart from the corresponding side frame 2, so that the electromagnetic wave signal radiated by the clearance side surface S1 of the antenna assembly 1 / cavity antenna T1 can be conducted to the outside of the electronic device 100 through the black border area H1, thereby enabling normal transmission of electromagnetic wave signals and ensuring antenna performance.

[0217] Among them, such as Figure 21 As shown, the electronic device 100 is a laptop computer, with a display screen 3 on the first body 110 and a keyboard 5 on the second body 120. Therefore, the aforementioned two adjacent side frames 2 refer to any two adjacent side frames 2 on the first body 110, such as... Figure 21 As shown, the antenna assembly 1 can be disposed in the first body 110, and may include at least one, disposed at two adjacent side frames 2 of the corresponding group.

[0218] When the electronic device 100 is a laptop computer, the preset frequency band supported by the antenna assembly 1 can be the WIFI band, Bluetooth band, etc., so as to facilitate WIFI and / or Bluetooth communication.

[0219] Among them, such as Figure 21 As shown, the second body 120 is also provided with a touchpad 51 for users to perform touch input.

[0220] In some embodiments, when the electronic device 100 is a laptop computer, the metal cover 4 may be a cover on the side of the first body 110 on which the display screen 3 is disposed, opposite to the display screen 3.

[0221] Please see Figure 22 This is a simplified planar schematic diagram of an electronic device 100 in some embodiments of this application. Wherein, as... Figure 22As shown, the electronic device 100 is a foldable electronic device, and both the first body 110 and the second body 120 are equipped with a display screen 3.

[0222] At this time, the electronic device 100 may be a foldable mobile phone, etc. The aforementioned side frame 2 can be any side frame 2 on the first body 110 and the second body 120. The antenna assembly 1 may be disposed in the first body 110 and / or the second body 120, and may include at least one, and is disposed at at least one corresponding side frame 2.

[0223] Therefore, for foldable electronic devices with displays 3 on both the first body 110 and the second body 120, the antenna assembly 1 of this application can be installed in more locations, which can greatly meet the current antenna quantity requirements in a small clearance environment.

[0224] Among them, such as Figure 22 As shown, when the electronic device 100 is a foldable mobile phone, etc., the electronic device 100 also includes a rotating member 130, and the first body 110 and the second body 120 are rotatably connected through the rotating member 130. The rotating member 130 can be any structure that allows the first body 110 and the second body 120 to be rotatably connected, such as a pivot or hinge.

[0225] Obviously, when the electronic device 100 is a laptop computer, with a display screen 3 on the first body 110 and a keyboard 5 on the second body 120, the first body 110 and the second body 120 are also rotatably connected via corresponding rotating parts, except that the aforementioned Figure 21 There was no indication of it.

[0226] In some embodiments, when the electronic device 100 is a foldable electronic device with a display screen 3 on both the first body 110 and the second body 120, and the antenna assembly 1 includes multiple components, the two antenna assemblies 1 located at corresponding positions on the first body 110 and the second body 120 support different frequency bands. Therefore, when the electronic device 100 is in a folded state, mutual interference can be effectively avoided. The corresponding positions on the first body 110 and the second body 120 refer to the positions where the projections of the foldable electronic device 100 overlap when it is in a folded state.

[0227] Please see Figure 23 This is a schematic diagram comparing the return loss and system efficiency of an electronic device 100 and a reference electronic device in some embodiments of this application when operating in a preset frequency band.

[0228] in, Figure 23 This can be an electronic device 100 including Figure 11Taking the antenna assembly 1 shown as an example, the return loss and system efficiency are obtained through simulation tests. The reference electronic device can be compared with... Figure 1 The antenna assembly 1 shown has a similar structure, but does not have the features of this application. Figure 1 The antenna assembly 1 shown has a matching gap 112 and other structures, and the matching adjustment is achieved by a matching unit or matching element, and the conductive wall 13 of the reference electronic device is conductive foam.

[0229] in, Figure 23 The diagram illustrates the return loss curve S11-1 and system efficiency curve St1 obtained from simulation tests when the electronic device 100 operates in the preset frequency band, and the return loss curve S11-2 and system efficiency curve St2 obtained from simulation tests when the electronic device operates in the preset frequency band.

[0230] from Figure 23 It can be seen that electronic device 100 includes Figure 11 The antenna assembly 1 shown is nearly half the size due to the inclusion of the dielectric substrate 14, but its return loss and system efficiency are basically the same as those of the larger antenna assembly included in the reference electronic device, and even more so for the electronic device 100. Figure 11 The antenna assembly 1 shown has lower return loss and higher system efficiency. Therefore, the electronic device 100 includes... Figure 11 The antenna assembly 1 shown can achieve antenna efficiency similar to that of a larger antenna assembly while reducing its size and the number of matching units or matching elements.

[0231] The electronic device 100 of this application can be any electronic device with an antenna, such as a mobile phone, tablet computer, or laptop computer. The electronic device 100 may also include other structures such as memory, which are not relevant to the improvements of this application and will not be described in detail here.

[0232] The antenna assembly 1 and electronic device 100 of this application, since the antenna assembly 1 can radiate through the clearance side, only require a certain clearance near the clearance side to achieve good antenna radiation performance, thus requiring very little clearance area and can be used in environments with very small clearance areas. Furthermore, in this application, the conductive plate 11 has a feed slot 111 and a matching slot 112 communicating with the feed slot 111. The feed slot 111 is used to receive the feed signal, and the matching slot 112 is used to achieve impedance matching adjustment for a preset frequency band. Therefore, the matching slot 112 can perform the function of a matching unit or matching element, thus eliminating the need for a matching unit or matching element, saving costs, and reducing the space occupied by the matching unit or matching element, which is beneficial for overall miniaturization and reduces the internal space occupied by the electronic device 100. In addition, in this application, when a cavity antenna T1 with two clearance sides S1 is formed and / or a dielectric substrate is also present inside the cavity antenna T1, the overall volume of the cavity antenna T1 can be effectively reduced, which is beneficial for miniaturization.

[0233] The various embodiments of this application may have different focuses. Some embodiments may not be described in detail, but please refer to the relevant content of other embodiments.

[0234] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Where there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An antenna assembly, characterized in that, The antenna assembly includes: A conductive plate includes at least one first radiating edge and at least one first connecting edge; A ground plane, parallel to and spaced apart from the conductive plate, includes at least one second radiating edge and at least one second connecting edge, and is grounded. A conductive wall is connected between the at least one first connecting edge and the at least one second connecting edge, for connecting at least one first connecting edge of the conductive plate to ground; Wherein, the at least one first radiating edge and the at least one second radiating edge are opposite to each other and spaced apart, and the conductive plate, the ground plate and the conductive wall form a cavity antenna with at least one clear side, wherein the at least one first radiating edge and the at least one second radiating edge are opposite sides of the at least one clear side. The conductive plate has a feeding slot and a matching slot connected to the feeding slot. The feeding slot is used to receive a feeding signal. The cavity antenna is used to support the transmission and reception of electromagnetic wave signals in a preset frequency band under the excitation of the feeding signal. The matching slot is used to realize impedance matching adjustment of the preset frequency band.

2. The antenna assembly according to claim 1, characterized in that, The power supply gap includes a first gap end and a second gap end opposite to each other. The first gap end of the power supply gap is connected to one of the first radiating edges, and a gap opening is formed on the first radiating edge. The matching gap is connected to the second gap end of the power supply gap.

3. The antenna assembly according to claim 2, characterized in that, The feeding slot includes a first slot wall and a second slot wall facing each other. The first slot wall and the second slot wall both extend between the first slot end and the second slot end, and the first slot wall and the second slot wall are directly opposite each other and spaced apart. The feeding signal includes a first feeding signal and a second feeding signal. The first feeding signal and the second feeding signal are out of phase. The first slot wall and the second slot wall are respectively used to receive the first feeding signal and the second feeding signal. The cavity antenna supports the transmission and reception of electromagnetic wave signals in a preset frequency band under the excitation of the first feeding signal and the second feeding signal.

4. The antenna assembly according to claim 3, characterized in that, The first slit wall and the second slit wall are respectively used to connect to the inner core and outer core of a radio frequency line to receive the first feed signal and the second feed signal transmitted from the inner core and outer core of the radio frequency line.

5. The antenna assembly according to claim 3, characterized in that, At least one end of the target first radiating edge, which is connected to the first gap end of the power supply gap, is connected to the first connecting edge. The power supply gap is closer to the target first connecting edge connected to the target first radiating edge than to the other side connected to the target first radiating edge, and the first gap wall of the power supply gap is farther away from the target first connecting edge than the second gap wall. The length of the target portion of the target first radiating edge from the first gap wall to the end connected to the target first connecting edge is 1 / 5 to 1 / 2 of the length of the target first radiating edge.

6. The antenna assembly according to claim 2, characterized in that, At least one end of the target first radiating edge, which is connected to the first gap end of the power supply gap, is connected to the first connecting edge. The power supply gap is closer to the target first connecting edge connected to the target first radiating edge than to the other side connected to the target first radiating edge. One end of the matching gap is connected to the second gap end of the power supply gap, and the matching gap extends toward the target first connecting edge.

7. The antenna assembly according to claim 1, characterized in that, The shape of the matching gap includes any one of the following: square, circle, ellipse, D-shape, triangle, trapezoid, or irregular shape.

8. The antenna assembly according to claim 1, characterized in that, Depending on the size of the matching gap, the impedance matching effect of the matching gap on the preset frequency band varies.

9. The antenna assembly according to claim 1, characterized in that, The at least one first radiating edge includes a first radiating edge, one end of which is connected to the other end of the first radiating edge via the at least one first connecting edge. The at least one second radiating edge includes a second radiating edge, one end of which is connected to the other end of the second radiating edge via the at least one second connecting edge. The first radiating edge and the second radiating edge are opposite to each other and spaced apart. The conductive plate, the ground plate, and the conductive wall form a cavity antenna with a clear side surface. The first radiating edge and the second radiating edge are two opposite sides of the clear side surface.

10. The antenna assembly according to claim 1, characterized in that, The at least one first radiating edge includes two first radiating edges, one end of which is connected to one end of the other first radiating edge, and the other end of which is connected to the other end of the other first radiating edge through the at least one first connecting edge; the at least one second radiating edge includes two second radiating edges, one end of which is connected to one end of the other second radiating edge, and the other end of which is connected to the other end of the other second radiating edge through the at least one second connecting edge; wherein the two first radiating edges and the two second radiating edges are respectively opposite to each other and spaced apart, and the conductive plate, the ground plate, and the conductive wall form a cavity antenna with two clearance sides, wherein one of the first radiating edges and one of the second radiating edges are two opposite sides of one clearance side, and the other first radiating edge and the other second radiating edge are two opposite sides of the other clearance side.

11. The antenna assembly according to claim 10, characterized in that, One of the first radiating edges includes opposing first and second ends, and the other first radiating edge includes opposing third and fourth ends. The first end of one first radiating edge is connected to the third end of the other first radiating edge, and the at least one first connecting edge is connected between the second end of one first radiating edge and the fourth end of the other first radiating edge. One of the second radiating edges includes opposing fifth and sixth ends, and the other second radiating edge includes opposing seventh and eighth ends. The fifth end of one second radiating edge is connected to the seventh end of the other second radiating edge, and the at least one second connecting edge is connected between the sixth end of one second radiating edge and the eighth end of the other second radiating edge.

12. The antenna assembly according to claim 9 or 11, characterized in that, The number of the at least one first connecting edge is at least one, and each first connecting edge is a straight line, an arc, or an irregular shape. The number of the at least one second connecting edge is at least one, and each second connecting edge is a straight line, an arc, or an irregular shape.

13. The antenna assembly according to claim 1, characterized in that, The cavity antenna formed by the conductive plate, ground plane, and conductive wall is a hollow cavity, and the clear side is a side with an opening.

14. The antenna assembly according to claim 1, characterized in that, The antenna assembly further includes a dielectric substrate, which includes opposing first and second surfaces, and at least one radiating side and at least one connecting side. A conductive plate is disposed on the first surface of the dielectric substrate, and a ground plane is disposed on the second surface of the dielectric substrate. The at least one radiating side is directly opposite to the at least one first radiating side and the at least one second radiating side, and the at least one radiating side is located on the at least one clearance side. A conductive wall connects the at least one first connecting side of the conductive plate and the at least one second connecting side of the ground plane, and is disposed on the at least one connecting side of the dielectric substrate.

15. The antenna assembly according to claim 14, characterized in that, The conductive wall is formed by forming a plurality of conductive holes electrically connecting the at least one first connecting edge and the at least one second connecting edge of the ground plane.

16. The antenna assembly according to claim 14, characterized in that, The conductive plate, the ground plane, and the dielectric plate are respectively two metal layers in the circuit board and a dielectric layer located between the two metal layers.

17. The antenna assembly according to claim 1, characterized in that, The projection of the ground plane on one side of the conductive plate coincides with the conductive plate, or the projection of the ground plane on one side of the conductive plate is located outside the power supply gap and the matching gap.

18. An electronic device, characterized in that, The electronic device includes an antenna assembly as described in any one of claims 1-17.

19. The electronic device according to claim 18, characterized in that, The electronic device includes a side frame, and the at least one clear side is adjacent to and spaced apart from the at least one side frame.

20. The electronic device according to claim 19, characterized in that, The electronic device also includes a display screen, which has a gap with the side frame to form a black border area, and the projection of the at least one clear side on the plane of the display screen is located within the black border area.

21. The electronic device according to claim 18, characterized in that, The electronic device also includes a metal cover plate, and the ground plane is fixed to the inner surface of the metal cover plate and electrically connected to the metal cover plate.

22. The electronic device according to claim 21, characterized in that, The side of the ground plate facing away from the conductive plate is bonded and fixed to the inner surface of the metal cover plate by a conductive adhesive.

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