Antenna assembly and electronic equipment

Abstract

The invention provides an antenna assembly. The antenna assembly comprises two dielectric plates and three conductive layers. The first dielectric plate comprises a first surface, a second surface, two side edges and a first connecting side edge connected between the two side edges, wherein the first surface and the second surface are opposite to each other. The first conductive layer is arranged on the first surface; the first dielectric plate and the second dielectric plate are oppositely arranged, the second dielectric plate comprises a third surface and a fourth surface which are opposite, and further comprises two side edges and a second connecting side edge connected between the two side edges, and the second conducting layer is arranged on the third surface deviating from the first conducting layer. The conductive connecting layer is connected between a first edge, corresponding to the first connecting side edge, of the first conductive layer and a second edge, corresponding to the second connecting side edge, of the second conductive layer. And the first conductive layer, the second conductive layer and the conductive connecting layer form a cavity antenna with two clearance side surfaces for electromagnetic wave signals to pass through. The invention further provides the electronic equipment. The antenna performance can be ensured in an effective clearance area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and particularly relates to an antenna assembly and an electronic device with the same. BACKGROUND

[0002] At present, with the popularization of 5G communication technology, people's communication experience is also getting better and better, but the number of antennas is also increasing. With people's pursuit of high screen-to-body ratio, electronic devices equipped with high screen-to-body ratio display screens have become mainstream. Since the metal cover plate has a good hand feel and good heat dissipation, the metal cover plate has gradually become a mainstream cover plate adopted by many electronic devices such as mobile phones, tablet computers and even notebook computers. Under this condition, the current electronic device has less space left for the antenna, which leads to the performance degradation of the antenna or the occupation of the space of other functional devices, thereby affecting the functions of the other functional devices. SUMMARY

[0003] The present application provides an antenna assembly and an electronic device to solve the above problems.

[0004] In a first aspect, an antenna assembly is provided, which includes a first dielectric plate, a first conductive layer, a second dielectric plate, a second conductive layer, and a conductive connecting layer. The first dielectric plate includes opposite first and second surfaces, and further includes a first side edge, a second side edge, and at least one first connecting side edge connected between the first and second side edges, wherein one end of the first side edge is connected to one end of the second side edge, and the other end of the first side edge is connected to the other end of the second side edge through the at least one first connecting side edge. The first conductive layer is disposed on the first surface, and includes a first edge, which is an edge of the first conductive layer corresponding to the at least one first connecting side edge. The second dielectric plate is disposed opposite to the first dielectric plate, and includes opposite third and fourth surfaces, and further includes a third side edge, a fourth side edge, and at least one second connecting side edge connected between the third and fourth side edges, wherein the third surface is farther from the first dielectric plate than the fourth surface, and the first surface of the first dielectric plate is farther from the second dielectric plate than the second surface, wherein one end of the third side edge is connected to one end of the fourth side edge, and the other end of the third side edge is connected to the other end of the fourth side edge through the at least one second connecting side edge. The second conductive layer is disposed on the third surface, and includes a second edge, which is an edge of the second conductive layer corresponding to the at least one second connecting side edge. The conductive connecting layer is connected between the first edge of the first conductive layer and the second edge of the second conductive layer, and is disposed on at least the first connecting side edge and the second connecting side edge. Wherein the first side edge is disposed opposite to the third side edge, and the second side edge is disposed opposite to the fourth side edge, and the first conductive layer, the second conductive layer, and the conductive connecting layer form a cavity antenna having two clearance sides for electromagnetic wave signals to pass through, and the first side edge and the third side edge are located in one of the clearance sides, and the second side edge and the fourth side edge are located in the other of the clearance sides.

[0005] In a second aspect, there is provided an electronic device comprising an antenna assembly, the antenna assembly comprising a first dielectric plate, a first conductive layer, a second dielectric plate, a second conductive layer, and a conductive connecting layer. The first dielectric plate comprises opposite first and second surfaces, and further comprises a first side edge, a second side edge, and at least one first connecting side edge connecting between the first side edge and the second side edge, wherein one end of the first side edge is connected to one end of the second side edge, and the other end of the first side edge is connected to the other end of the second side edge through the at least one first connecting side edge. The first conductive layer is disposed on the first surface, and the first conductive layer comprises a first edge, which is an edge of the first conductive layer corresponding to the at least one first connecting side edge. The second dielectric plate is disposed opposite to the first dielectric plate, and the second dielectric plate comprises opposite third and fourth surfaces, and further comprises a third side edge, a fourth side edge, and at least one second connecting side edge connecting between the third side edge and the fourth side edge, wherein the third surface is farther away from the first dielectric plate than the fourth surface, and the first surface of the first dielectric plate is farther away from the second dielectric plate than the second surface, wherein one end of the third side edge is connected to one end of the fourth side edge, and the other end of the third side edge is connected to the other end of the fourth side edge through the at least one second connecting side edge. The second conductive layer is disposed on the third surface, and the second conductive layer comprises a second edge, which is an edge of the second conductive layer corresponding to the at least one second connecting side edge. The conductive connecting layer is connected between the first edge of the first conductive layer and the second edge of the second conductive layer, and is disposed on at least the first connecting side edge and the second connecting side edge. Wherein the first side edge is disposed opposite to the third side edge, and the second side edge is disposed opposite to the fourth side edge, and the first conductive layer, the second conductive layer, and the conductive connecting layer form a cavity antenna having two clearance sides for electromagnetic wave signals to pass through, and the first side edge and the third side edge are located in one of the clearance sides, and the second side edge and the fourth side edge are located in the other of the clearance sides.

[0006] The antenna assembly and the electronic device of the present application can radiate through the clearance side by forming the cavity antenna with the above structure, and only needs a certain clearance near the clearance side to achieve good antenna radiation performance, thereby having a small demand for the clearance area and being applicable to an environment with a small clearance area. In addition, in the prior art, a general cavity antenna realizes clearance through an opening or the like on one side, that is, only one clearance side, and the clearance side is rectangular, and the maximum point of the electric field is located at the middle point of the long side of the clearance side. In order to meet the minimum boundary condition of electromagnetic oscillation, the long side of the clearance side needs to be λ / 2, wherein λ is the wavelength corresponding to the electromagnetic wave signal of the preset frequency band supported by the cavity antenna, so that the distance between the maximum point of the electric field and the end of the long side of the clearance side, that is, the distance between the maximum point of the electric field and the conductive side wall, is λ / 4 to support the resonance of the preset frequency band. Therefore, the size of the long side of the cavity antenna in the prior art, that is, the size of the long side on the clearance side, needs to be at least λ / 2. However, the cavity antenna of the present application has two clearance sides, and the first side on the clearance side is connected with the second side on the clearance side, and the third side on the clearance side is connected with the fourth side on the clearance side, which is equivalent to the connection of the two clearance sides, so that the maximum point of the electric field is approximately the point at which the two clearance sides S1 and S2 intersect, so that the required length of each clearance side is less than λ / 2, thereby effectively reducing the overall size of the cavity antenna. In addition, in the present application, the cavity antenna is formed by providing a conductive layer on a dielectric plate, and the stability of the structure is improved by the bearing effect of the dielectric plate. Compared with the conductive side wall of the cavity antenna formed by a spring or the like in the prior art and further locked by a screw, the performance of the cavity antenna can be effectively improved, and the use of screws and the like can be avoided to facilitate the reduction of the overall size. BRIEF DESCRIPTION OF DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings needed to be used in the embodiments of the present application or the background art will be described below.

[0008] Figure 1 A simple structural schematic diagram of the antenna assembly in some embodiments of the present application.

[0009] Figure 2 A structural schematic diagram of the antenna assembly. Figure 1 An exploded schematic diagram of the antenna assembly shown in FIG.

[0010] Figure 3 Another exploded schematic diagram of the antenna assembly in some embodiments of the present application.

[0011] Figure 4 Another exploded schematic diagram of the antenna assembly shown in FIG. Figure 1

[0012] ​Figure 5 Another simple schematic diagram of an antenna assembly in some embodiments of the application.

[0013] Figure 6 Another simple schematic diagram of an antenna assembly in some embodiments of the application. Figure 5 An exploded schematic diagram of the antenna assembly shown.

[0014] Figure 7 Another simple schematic diagram of an antenna assembly in some embodiments of the application.

[0015] Figure 8 A further schematic diagram of an antenna assembly in some embodiments of the application.

[0016] Figure 9 Another simple schematic diagram of an antenna assembly in some embodiments of the application. Figure 8 An exploded schematic diagram of the antenna assembly shown.

[0017] Figure 10 A further schematic diagram of an antenna assembly in some embodiments of the application.

[0018] Figure 11 A further schematic diagram of an antenna assembly in some embodiments of the application. Figure 10 A schematic diagram of the antenna assembly shown in a variant example.

[0019] Figure 12 A further schematic diagram of an antenna assembly in some embodiments of the application.

[0020] Figure 13 A schematic diagram of a tuning unit in some embodiments of the application.

[0021] Figure 14 A further schematic diagram of an antenna assembly in some embodiments of the application.

[0022] Figure 15 A schematic diagram of an antenna assembly in some embodiments of the application. Figure 14 A schematic diagram of the antenna assembly shown in a variant example.

[0023] Figure 16 A further schematic diagram of an antenna assembly in some embodiments of the application.

[0024] Figure 17 A further schematic diagram of an antenna assembly in some embodiments of the application.

[0025] Figure 18 A further schematic diagram of an antenna assembly in some embodiments of the application.

[0026] Figure 19 A schematic diagram of a portion of the internal structure of an electronic device in some embodiments of the application.

[0027] Figure 20 A return loss plot for an antenna assembly included in the electronic device of some embodiments of the application.

[0028] Figure 21 A radiation efficiency and system total efficiency plot for an antenna assembly included in the electronic device of some embodiments of the application.

[0029] Figure 22 An antenna pattern for an antenna assembly of the electronic device of some embodiments of the application when operating in a predetermined frequency band.

[0030] Figure 23 An antenna standing wave plot for an antenna assembly included in the electronic device of some embodiments of the application.

[0031] Figure 24 A side view schematic diagram of a portion of the internal structure of the electronic device of some embodiments of the application, as viewed from the side of the display screen.

[0032] Figure 25 A side view schematic diagram of a portion of the structure of the electronic device of some embodiments of the application.

[0033] Figure 26 A side view schematic diagram of a portion of the structure of the electronic device of some embodiments of the application.

[0034] Figure 27 A simplified structure schematic diagram of another portion of the internal structure of the electronic device of some embodiments of the application.

[0035] Figure 28 A simplified structure schematic diagram of yet another portion of the internal structure of the electronic device of some embodiments of the application.

[0036] Figure 29 A simplified structure schematic diagram of still another portion of the internal structure of the electronic device of some embodiments of the application.

[0037] Figure 30 A simplified overall schematic diagram of the electronic device of some embodiments of the application.

[0038] Figure 31 A simplified plan view schematic diagram of the electronic device of some embodiments of the application. DETAILED DESCRIPTION

[0039] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0040] In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "thickness", "width" and the like indicate the positional or location relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not imply or indicate that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The term "connected" in the present application mainly refers to physical structural connection in the absence of other indications, and can also include electrical connection, direct connection or indirect connection and the like in the presence of indications. The term "coupled" in the present application includes electrical connection, direct connection or indirect connection and the like. In the description of the embodiments of the present application, the terms "first", "second", "third", "fourth" and the like are not specific, but are used to distinguish the same named objects, and the same named objects referred to by the terms "first", "second", "third", "fourth" and the like can be the same object in the presence of the description. Among them, "A / B" in the present application refers to A or B, and "A and / or B" includes only "A", or only "B", or both "A" and "B".

[0041] Please refer to Figure 1 , a simple structure diagram of an antenna assembly 1 in some embodiments of the present application. As shown in Figure 1As shown, the antenna assembly 1 comprises a first dielectric plate 11, a first conductive layer 12, a second dielectric plate 13, a second conductive layer 14 and a conductive connecting layer 15. The first dielectric plate 11 comprises a first surface 11a and a second surface 11b opposite to each other, and further comprises a first side edge 11c, a second side edge 11d and at least one first connecting side edge 11e connecting between the first side edge 11c and the second side edge 11d, wherein one end of the first side edge 11c is connected to one end of the second side edge 11d, and the other end of the first side edge 11c is connected to the other end of the second side edge 11d through the at least one first connecting side edge 11e. The first conductive layer 12 is disposed on the first surface 11a, and the first conductive layer 12 comprises a first edge 12a which is an edge of the first conductive layer 12 corresponding to the at least one first connecting side edge 11e. The second dielectric plate 13 is disposed opposite to the first dielectric plate 11, and the second dielectric plate 13 comprises a third surface 13a and a fourth surface 13b opposite to each other, and further comprises a third side edge 13c, a fourth side edge 13d and at least one second connecting side edge 13e connecting between the third side edge 13c and the fourth side edge 13d, wherein the third surface 13a is farther away from the first dielectric plate 11 than the fourth surface 13b, and the first surface 11a of the first dielectric plate 11 is farther away from the second dielectric plate 13 than the second surface 11b, wherein one end of the third side edge 13c is connected to one end of the fourth side edge 13d, and the other end of the third side edge 13c is connected to the other end of the fourth side edge 13d through the at least one second connecting side edge 13e. The second conductive layer 14 is disposed on the third surface 13a, and the second conductive layer 14 comprises a second edge 14a which is an edge of the second conductive layer 14 corresponding to the at least one second connecting side edge. The conductive connecting layer 15 is connected between the first edge 12a of the first conductive layer 12 and the second edge 14a of the second conductive layer 14, and is disposed on at least the first connecting side edge 11e and the second connecting side edge 13e. The first side edge 11c is disposed opposite to the third side edge 13c, and the second side edge 11d is disposed opposite to the fourth side edge 13d, and the first conductive layer 12, the second conductive layer 14 and the conductive connecting layer 15 form a cavity antenna T1 having two clearance sides S1, S2 for electromagnetic wave signals to pass through, wherein the first side edge 11c and the third side edge 13c are located in one of the clearance sides S1, and the second side edge 11d and the fourth side edge 13d are located in the other of the clearance sides S2.

[0042] In the present application, by forming the cavity antenna T1 with the above structure, radiation can be performed through the clearance side, and good antenna radiation performance can be achieved only with a certain clearance near the clearance side, thereby requiring very little clearance area and being applicable in an environment with very little clearance area. In addition, in the prior art, a general cavity antenna realizes clearance through an opening or the like on one side, that is, only one clearance side, and the clearance side is rectangular, and the maximum point of the electric field is located at the middle point of the long side of the clearance side. In order to meet the minimum boundary condition of electromagnetic oscillation, the long side of the clearance side needs to be λ / 2, wherein λ is the wavelength corresponding to the electromagnetic wave signal of the preset frequency band supported by the cavity antenna, so that the distance between the maximum point of the electric field and the end of the long side of the clearance side, that is, the distance between the maximum point of the electric field and the conductive side wall, is λ / 4 to support the resonance of the corresponding preset frequency band. Therefore, the long side of the cavity antenna T1 in the prior art, that is, the long side on the clearance side, needs to be at least λ / 2 in size. However, the cavity antenna T1 in the present application has two clearance sides S1 and S2, and the first side edge 11c on the clearance side S1 is connected to the second side edge 11d on the clearance side S2, for example, at an angle, and the third side edge 13c on the clearance side S1 is connected to the fourth side edge 13d on the clearance side S2, for example, at an angle, which is equivalent to the connection, for example, at an angle, of the two clearance sides S1 and S2, so that the maximum point of the electric field is approximately the point of intersection of the two clearance sides S1 and S2, and the required length of each clearance side is less than λ / 2, thereby effectively reducing the overall size of the cavity antenna. In addition, in the present application, the cavity antenna T1 is formed by providing a conductive layer on a dielectric plate, and the dielectric plate can improve the stability of the structure through the bearing effect, and compared with the existing conductive side wall of the cavity antenna formed by a spring or the like and further locked by a screw, the performance of the cavity antenna can be effectively improved, and the use of screws and the like can be avoided to facilitate the reduction of the overall size.

[0043] In the present application, unless otherwise specified, each side edge of the first dielectric plate 11, the second dielectric plate 13, and the like refers to a side edge that is not coplanar. Therefore, when one end of the first side edge 11c is connected to one end of the second side edge 11d, the first side edge 11c and the second side edge 11d are connected at an angle, and when one end of the third side edge 13c is connected to one end of the fourth side edge 13d, the third side edge 13c and the fourth side edge 13d are also connected at an angle. Therefore, the first side edge 11c on the clearance side S1 is connected to the second side edge 11d on the clearance side S2, that is, at an angle, and the two clearance sides S1 and S2 are connected, that is, at an angle.

[0044] In the present application, unless otherwise specified, each side edge of the first dielectric plate 11, the second dielectric plate 13, and the like refers to a side edge that is not coplanar. Therefore, when one end of the first side edge 11c is connected to one end of the second side edge 11d, the first side edge 11c and the second side edge 11d are connected at an angle, and when one end of the third side edge 13c is connected to one end of the fourth side edge 13d, the third side edge 13c and the fourth side edge 13d are also connected at an angle. Therefore, the first side edge 11c on the clearance side S1 is connected to the second side edge 11d on the clearance side S2, that is, at an angle, and the two clearance sides S1 and S2 are connected, that is, at an angle. Figure 1In the figure, the guide lines of most of the occluded objects are shown in dotted lines for better clarity.

[0045] In some embodiments, the third surface 13a of the second dielectric plate 13 is farther away from the first dielectric plate 11 than the fourth surface 13b, and the first surface 11a of the first dielectric plate 11 is farther away from the second dielectric plate 13 than the second surface 11b, i.e., the fourth surface 13b and the second surface 11b of the first dielectric plate 11 face each other, and the third surface 13a of the second dielectric plate 13 and the first surface 11a of the first dielectric plate 11 face away from each other. Further, in some embodiments, the second surface 11b of the first dielectric plate 11 faces the second dielectric plate 13, and the fourth surface 13b of the second dielectric plate 13 faces the first dielectric plate 11, so that the fourth surface 13b and the second surface 11b of the first dielectric plate 11 face each other. That is, the first surface 11a of the first dielectric plate 11 and the third surface 13a of the second dielectric plate 13 are two surfaces facing away from each other, which are the outer surfaces of the first dielectric plate 11 and the second dielectric plate 13, and the first conductive layer 12 and the second conductive layer 14 are arranged on the two surfaces facing away from each other of the first dielectric plate 11 and the second dielectric plate 13 respectively, and the cavity antenna T1 is formed by at least the space between the first dielectric plate 11 and the second dielectric plate 13.

[0046] In some embodiments, the first dielectric plate 11 and the second dielectric plate 13 have a thickness, the first surface 11a and the second surface 11b are the two surfaces with the largest area of the first dielectric plate 11, and the third surface 13a and the fourth surface 13b are the two surfaces with the largest area of the second dielectric plate 13. The thickness direction of the first dielectric plate 11 is the direction parallel to the direction from the first surface 11a to the second surface 11b, and the thickness direction of the second dielectric plate 13 is the direction parallel to the direction from the third surface 13a to the fourth surface 13b.

[0047] In some embodiments, the third surface 13a of the second dielectric plate 13 is farther away from the first dielectric plate 11 than the fourth surface 13b, and the first surface 11a of the first dielectric plate 11 is farther away from the second dielectric plate 13 than the second surface 11b, i.e., the fourth surface 13b and the second surface 11b of the first dielectric plate 11 face each other, and the third surface 13a of the second dielectric plate 13 and the first surface 11a of the first dielectric plate 11 face away from each other. Further, in some embodiments, the second surface 11b of the first dielectric plate 11 faces the second dielectric plate 13, and the fourth surface 13b of the second dielectric plate 13 faces the first dielectric plate 11, so that the fourth surface 13b and the second surface 11b of the first dielectric plate 11 face each other. That is, the first surface 11a of the first dielectric plate 11 and the third surface 13a of the second dielectric plate 13 are two surfaces facing away from each other, which are the outer surfaces of the first dielectric plate 11 and the second dielectric plate 13, and the first conductive layer 12 and the second conductive layer 14 are arranged on the two surfaces facing away from each other of the first dielectric plate 11 and the second dielectric plate 13 respectively, and the cavity antenna T1 is formed by at least the space between the first dielectric plate 11 and the second dielectric plate 13.

[0048] The distance between the first conductive layer 12 and the second conductive layer 14 is at least greater than or equal to the sum of the thicknesses of the first dielectric plate 11 and the second dielectric plate 13, so that the size of the cavity antenna T1 in the thickness direction of the dielectric plate can meet the requirements by setting the thicknesses of the first dielectric plate 11 and the second dielectric plate 13, that is, the distance between the first conductive layer 12 and the second conductive layer 14 meets the requirements.

[0049] The first dielectric plate 11 and the second dielectric plate 13 are located inside the cavity antenna T1, and since the dielectric plate allows electromagnetic wave signals to pass through, it does not affect the radiation performance of the cavity antenna.

[0050] In some embodiments, the first dielectric plate 11 and the second dielectric plate 13 can be made of non-conductive insulating dielectric materials, such as ceramic materials, glass fiber materials, and the like.

[0051] In some embodiments, since the first dielectric plate 11 and the second dielectric plate 13 have a certain thickness, each side edge of the first side edge 11c, the second side edge 11d, and the at least one first connecting side edge 11e connected between the first side edge 11c and the second side edge 11d included in the first dielectric plate 11 can refer to each side edge surface / side surface of the first dielectric plate 11 having a certain area, and each side edge of the third side edge 13c, the fourth side edge 13d, and the at least one second connecting side edge 13e connected between the third side edge 13c and the fourth side edge 13d included in the second dielectric plate 13 can also refer to each side edge surface / side surface of the first dielectric plate 11 having a certain area. Therefore, the conductive connecting layer 15 arranged on at least the first connecting side edge 11e and the second connecting side edge 13e can also refer to being arranged on at least the first connecting side edge 11e of the first dielectric plate 11 and the second connecting side edge 13e of the second dielectric plate 13.

[0052] In some embodiments, the first edge 12a of the first conductive layer 12 corresponding to the edge of the at least one first connecting side edge 11e can refer to the edge of the first conductive layer 12 connected to the edge of the at least one first connecting side edge 11e; and the second edge 14a of the second conductive layer 14 corresponding to the edge of the at least one second connecting side edge 13e can also refer to the edge of the second conductive layer 14 connected to the edge of the at least one second connecting side edge 13e.

[0053] In some embodiments, as Figure 1As shown, the conductive connecting layer 15, when connected between the first edge 12a of the first conductive layer 12 and the second edge 14a of the second conductive layer 14, can extend at least through the first connecting side edge 11e and the second connecting side edge 13e and be disposed between the first connecting side edge 11e and the second connecting side edge 13e, and the conductive connecting layer 15, when connected between the first edge 12a of the first conductive layer 12 and the second edge 14a of the second conductive layer 14, forms conductive side walls on the sides corresponding to at least one first connecting side edge 11e of the first dielectric plate 11 and at least one second connecting side edge 13e of the second dielectric plate 13. In addition, the sides on which the first side edge 11c and the third side edge 13c are located and the sides on which the second side edge 11d and the fourth side edge 13d are located are clear sides because the conductive connecting layer 15 is not disposed thereon. Thus, the first conductive layer 12, the second conductive layer 14, and the conductive connecting layer 15 form a cavity antenna T1 having two clear sides S1, S2 through which electromagnetic wave signals pass.

[0054] In some embodiments, the projection of the first dielectric plate 11 on the second dielectric plate 13, i.e., the projection of the first dielectric plate 11 on the second dielectric plate 13 along the thickness direction, substantially coincides with the second dielectric plate 13, and the projection of the first conductive layer 12 on the second conductive layer 14 substantially coincides with the second conductive layer 14. The projections of the first side edge 11c, the second side edge 11d, and the at least one first connecting side edge 11e of the first dielectric plate 11 on the second dielectric plate 13 substantially coincide with the third side edge 13c, the fourth side edge 13d, and the at least one second connecting side edge 13e of the second dielectric plate 13, respectively, which is conducive to forming a better cavity antenna T1.

[0055] In some embodiments, as shown in FIG. 1, the first dielectric plate 11 includes a first side edge 11c, a second side edge 11d, and at least one first connecting side edge 11e connected between the first side edge 11c and the second side edge 11d, and each of the side edges is a straight strip, and the dimension of each of the side edges along the thickness direction of the first dielectric plate 11 is significantly smaller than the length of each of the side edges, for example, less than 1 / 2 of the length of each of the side edges. Figure 1 As shown, the first dielectric plate 11 includes a first side edge 11c, a second side edge 11d, and at least one first connecting side edge 11e connected between the first side edge 11c and the second side edge 11d, and each of the side edges is a straight strip, and the dimension of each of the side edges along the thickness direction of the first dielectric plate 11 is significantly smaller than the length of each of the side edges, for example, less than 1 / 2 of the length of each of the side edges.

[0056] The length direction of each side of the first dielectric plate 11 and the second dielectric plate 13 can be the extension direction of each side of the first dielectric plate 11 and the second dielectric plate 13, that is, the direction perpendicular to the thickness direction of the first dielectric plate 11 and the second dielectric plate 13.

[0057] In some embodiments, the first dielectric plate 11 and the second dielectric plate 13 mainly serve as carriers for the corresponding conductive layers. Figure 1 As shown in the drawings, in some embodiments, the first conductive layer 12 further includes a third edge 12b and a fourth edge 12c, and the second conductive layer 14 further includes a fifth edge 14b and a sixth edge 14c. The third edge 12b of the first conductive layer 12 corresponds to the first side 11c, the fourth edge 12c of the first conductive layer 12 corresponds to the second side 11d, the fifth edge 14b of the second conductive layer 14 corresponds to the third side 13c of the second dielectric plate 13, and the sixth edge 14c of the second conductive layer 14 corresponds to the fourth side 13d of the second dielectric plate 13. As described above, the first conductive layer 12, the second conductive layer 14, and the conductive connection layer 15 form a cavity antenna T1 having two clearance sides S1 and S2 for the electromagnetic wave signal to pass through. At this time, the third edge 12b of the first conductive layer 12 and the fifth edge 14b of the second conductive layer 14 are the edges of the two opposite edges of the clearance side S1, and the fourth edge 12c of the second conductive layer 14 and the sixth edge 14c of the second conductive layer 14 are the edges of the two opposite edges of the clearance side S2.

[0058] In this application, either the first conductive layer 12 or the second conductive layer 14 can serve as a feed layer for accessing a feed signal, and the other one serves as a ground layer for grounding. In this application, the first conductive layer 12 is taken as the feed layer and the second conductive layer 14 is taken as the ground layer for illustration.

[0059] In some embodiments, the first conductive layer 12 serves as a feed layer for accessing a feed signal, and 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 feed signal. The equivalent electrical length of the third edge 12b and the fourth edge 12c of the first conductive layer 12 is equal to λ / 4, where λ is the wavelength corresponding to the electromagnetic wave signal in the preset frequency band. As described above, the third edge 12b of the first conductive layer 12 corresponds to the first side 11c, and the fourth edge 12c of the first conductive layer 12 corresponds to the second side 11d.

[0060] The third edge 12b of the first conductive layer 12 corresponds to the edge of the first side edge 11c, and also corresponds to the edge of the clearance side S1 where the first side edge 11c is located. The fourth edge 12c of the first conductive layer 12 corresponds to the edge of the second side edge 11d, and also corresponds to the edge of the clearance side S2 where the second side edge 11d is located. The equivalent electrical length of the third edge 12b and the fourth edge 12c of the first conductive layer 12 is λ / 4. The equivalent electrical length of the edge of the clearance side S1 and the edge of the clearance side S2 along the respective length direction is λ / 4.

[0061] As described above, in the prior art, a general cavity antenna has one clearance side realized by an opening or the like, and the clearance side is a rectangle. The maximum point of the electric field is located at the middle point of the long side of the clearance side. In order to meet the minimum boundary condition of electromagnetic oscillation, the long side of the clearance side needs to be λ / 2, so that the distance from the maximum point of the electric field to the end of the long side of the clearance side, i.e., the distance between the conductive side walls, is λ / 4 to support the resonance of the corresponding frequency band. Therefore, the size of the long side of the cavity antenna T1 in the prior art, i.e., the size of the long side on the clearance side, needs to be at least λ / 2. However, the cavity antenna T1 of the present application has two clearance sides S1 and S2, and the two clearance sides S1 and S2 are connected, for example, at an angle. The maximum point of the electric field is approximately the point where the two clearance sides S1 and S2 intersect, for example, the point where the third edge 12b and the second edge 12c of the first conductive layer 12 intersect. The required length of each clearance side is less than λ / 2, for example, the equivalent electrical length of the edge of each clearance side along the length direction is λ / 4. Therefore, the distance from the maximum point of the electric field of the cavity antenna T1 to the conductive connection layer 15 as the conductive side wall still satisfies λ / 4, meeting the minimum size boundary condition required by electromagnetic oscillation, while the length of the edge on the clearance side only needs to be λ / 4, effectively reducing the overall size and effectively reducing the space occupation.

[0062] That is, in some embodiments, the cavity antenna T1 of the present application replaces the clearance side with a length of λ / 2 in the prior art with two clearance sides S1 and S2 arranged at an angle, so that the overall length can be reduced, and the overall size of the cavity antenna T1 is reduced. Figure 1 As shown in FIG. 2, the angle between the two clearance sides S1 and S2 can be 90°, i.e., the two clearance sides S1 and S2 can be connected perpendicularly, so that the size of the cavity antenna T1 of the present application is at least half of the size of the cavity antenna in the prior art.

[0063] In the present application, the equivalent electrical lengths of the third edge 12b and the fourth edge 12c of the first conductive layer 12 are equal to λ / 4, which does not mean that they are strictly equal to λ / 4, but a certain deviation is allowed, and they are approximately equal to λ / 4, for example, the equivalent electrical lengths of the first side edge 11c and the second side edge 11d can be values between λ / 4±λ / 10.

[0064] In the present application, the equivalent electrical lengths of the third edge 12b and the fourth edge 12c of the first conductive layer 12 are equal to λ / 4, which does not mean that they are strictly equal to λ / 4, but a certain deviation is allowed, and they are approximately equal to λ / 4, for example, the equivalent electrical lengths of the first side edge 11c and the second side edge 11d can be values between λ / 4±λ / 10.

[0065] In the present application, the equivalent electrical lengths of the third edge 12b and the fourth edge 12c of the first conductive layer 12 are equal to λ / 4, which does not mean that they are strictly equal to λ / 4, but a certain deviation is allowed, and they are approximately equal to λ / 4, for example, the equivalent electrical lengths of the first side edge 11c and the second side edge 11d can be values between λ / 4±λ / 10.

[0066] In the present application, the equivalent electrical lengths of the third edge 12b and the fourth edge 12c of the first conductive layer 12 are equal to λ / 4, which does not mean that they are strictly equal to λ / 4, but a certain deviation is allowed, and they are approximately equal to λ / 4, for example, the equivalent electrical lengths of the first side edge 11c and the second side edge 11d can be values between λ / 4±λ / 10.

[0067] In some embodiments, the third edge 12b of the first conductive layer 12 corresponding to the first side edge 11c can mean that the third edge 12b of the first conductive layer 12 is the edge of the side of the first conductive layer 12 connected to the first side edge 11c; and the fourth edge 12c of the first conductive layer 12 corresponding to the second side edge 11d can also mean that the fourth edge 12c of the first conductive layer 12 is the edge of the side of the first conductive layer 12 connected to the second side edge 11d.

[0068] In some embodiments, the first dielectric plate 11 and the second dielectric plate 13 are spaced apart from each other, or the first dielectric plate 11 and the second dielectric plate 13 are attached to each other, or the first dielectric plate 11 and the second dielectric plate 13 are integrally formed.

[0069] That is, in some embodiments, the first dielectric plate 11 and the second dielectric plate 13 may be spaced apart from each other, or may be directly attached together, or may be an integrated dielectric plate that is only virtually divided into the first dielectric plate 11 and the second dielectric plate 13 .

[0070] Please also refer to Figure 2 , Figure 2 for Figure 1 The antenna assembly 1 is shown as an exploded schematic diagram. Figure 1 and Figure 2 As shown, the antenna assembly 1 also includes a support member 16, which is arranged between the first dielectric plate 11 and the second dielectric plate 13. The first dielectric plate 11 and the second dielectric plate 13 are spaced apart by the support member 16, and the conductive connection layer 15 is also partially arranged on at least part of the side of the support member 16.

[0071] That is, in some embodiments, the first dielectric plate 11 and the second dielectric plate 13 are spaced apart and are spaced apart by a support member 16 disposed between the first dielectric plate 11 and the second dielectric plate 13. Figure 1 and Figure 2 The first dielectric plate 11, the support member 16, and the second dielectric plate 13 can be stacked sequentially. Thus, the support member 16 ensures the structural stability of the cavity antenna T1. Furthermore, when the combined thickness of the first and second dielectric plates 11, 13 is relatively small, adding the support member 16 can increase the distance between the first conductive layer 12 and the second conductive layer 14. In other words, the thickness of the cavity antenna T1 can be increased, ensuring that the required thickness of the cavity antenna T1 is met. Furthermore, adding the support member 16 allows for greater design flexibility for the first and second dielectric plates 11, 13.

[0072] In some embodiments, the support member 16 may also be made of a non-conductive insulating dielectric material, such as a ceramic material, a glass fiber material, and the like.

[0073] In some embodiments, as Figure 2As shown, the support member 16 comprises a support frame 161, and the support frame 161 comprises at least one support frame strip 161a, and the at least one support frame strip 161a comprises at least one target support frame strip 161a1 corresponding to the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, and the conductive connecting layer 15 is also partially arranged on the side of the at least one target support frame strip 161a1.

[0074] That is, in some embodiments, the support member 16 can be a support frame 161, and the support frame 161 comprises at least one target support frame strip 161a1 corresponding to the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, and the conductive connecting layer 15 is connected between the first edge 12a of the first conductive layer 12 and the second edge 14a of the second conductive layer 14, and also extends through the side of the at least one target support frame strip 161a1, so that the conductive connecting layer 15 is also partially arranged on the side of the at least one target support frame strip 161a1.

[0075] Therefore, when the first dielectric plate 11 and the second dielectric plate 13 are arranged in a spaced manner by the support member 16, the side where the at least one first connecting side edge 11e and the at least one second connecting side edge 13e are located can still be completely covered by the conductive connecting layer 15, so that the electromagnetic wave signal is only allowed to be transmitted through the two clear side surfaces S1 and S2, meeting the structural requirements of the cavity antenna T1 and effectively ensuring the radiation performance of the cavity antenna T1.

[0076] In some embodiments, the at least one target support frame strip 161a1 corresponding to the at least one first connecting side edge 11e and the at least one second connecting side edge 13e can mean that the projection of the side of the at least one target support frame strip 161a1 along the stacking direction of the first dielectric plate 11, the support member 16 and the second dielectric plate 13 can substantially coincide with the at least one first connecting side edge 11e and the at least one second connecting side edge 13e. Therefore, the side of the at least one target support frame strip 161a1 is substantially coplanar with the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, and the conductive connecting layer 15 is arranged on the side of the coplanar target support frame strip 161a1 and the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, which is beneficial to improve the structural stability.

[0077] Among them, the support member 16 is in the form of a support frame 161, and the area surrounded by the support member 16 is a hollow area, so that the cavity antenna T1 also has a hollow area without dielectric material, which is beneficial to improve the radiation performance.

[0078] In some embodiments, as shown in Figure 2 The support frame 161 is a closed ring frame, and the at least one support frame strip 161a includes a plurality of support frame strips 161a corresponding to the first side edge 11c and the third side edge 13c and a plurality of support frame strips 161a corresponding to the second side edge 11d and the fourth side edge 13d, and the plurality of support frame strips 161a are connected to form the closed ring frame.

[0079] That is, in some embodiments, the at least one support frame strip 161a includes at least one target support frame strip 161a1 corresponding to the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, and includes a plurality of support frame strips 161a corresponding to the first side edge 11c and the third side edge 13c and a plurality of support frame strips 161a corresponding to the second side edge 11d and the fourth side edge 13d, and the plurality of support frame strips 161a are connected to form the closed ring frame. Thus, the support frame 161 can better support the first medium plate 11 and the second medium plate 13, and since the conductive connection layer 15 is only provided on the side edges of the at least one target support frame strip 161a1, the side edges of the plurality of support frame strips 161a corresponding to the first side edge 11c and the third side edge 13c and the plurality of support frame strips 161a corresponding to the second side edge 11d and the fourth side edge 13d are not provided with the conductive layer, so that the clearance side S1 where the first side edge 11c and the third side edge 13c are located and the clearance side S2 where the second side edge 11d and the fourth side edge 13d are located can still form a complete clearance side, and the radiation performance of the cavity antenna T1 will not be affected.

[0080] In the at least one target support frame strip 161a1, the side edges of the at least one target support frame strip 161a1 also refer to the side edge faces / sides of the at least one target support frame strip 161a1 having a certain area.

[0081] In the at least one target support frame strip 161a1, the side edges of the at least one target support frame strip 161a1 also refer to the side edge faces / sides of the at least one target support frame strip 161a1 having a certain area. Figure 2 In order to more clearly show the structure of the support member 16, some elements or element symbols are omitted with respect to Figure 1 In order to more clearly show the structure of the support member 16, some elements or element symbols are omitted with respect to

[0082] Please refer to Figure 3 for another exploded schematic view of the antenna assembly 1 in some embodiments of the present application.

[0083] In some embodiments, as shown in Figure 3As shown, the support frame 161 includes at least one target support frame strip 161a1, and the number of the target support frame strips 161a1 is greater than one, for example, greater than or equal to two. In this case, the support frame 161 can include at least one target support frame strip 161a1 corresponding to the at least one first connecting side edge 11e and the at least one second connecting side edge 13e. In this case, the first medium plate 11 and the second medium plate 13 can be effectively supported by the at least one target support frame strip 161a1, and the side edge of the at least one target support frame strip 161a1 can be provided with the conductive connection layer 15, so as to ensure the stability of the conductive connection layer 15. By reducing some support frame strips, the cost can be reduced, and some hollow areas can be formed in the clearance side S1 and the clearance side S2, so as to improve the radiation performance to a certain extent.

[0084] Obviously, in some embodiments, the support frame 161 can include support frame strips 161a corresponding to the first side edge 11c and the third side edge 13c, or include support frame strips 161a corresponding to the second side edge 11d and the fourth side edge 13d, in addition to the at least one target support frame strip 161a1, but do not form a closed annular frame.

[0085] Please refer to Figure 4 , another exploded schematic view of the antenna assembly 1 is shown. Figure 1

[0086] In some embodiments, as shown in Figure 4 , the support 16 includes a support plate 162, the support plate 162 includes at least one target side edge 162a corresponding to the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, and the conductive connection layer 15 is also partially arranged on the at least one target side edge 162a of the support plate 162.

[0087] That is, in some embodiments, the support 16 can also be a plate, and the support plate 162 is arranged between the first medium plate 11 and the second medium plate 13, so that the first medium plate 11, the support plate 162 and the second medium plate 13 are sequentially stacked, and the first medium plate 11 and the second medium plate 13 are spaced apart by the support plate 162.

[0088] Therefore, in some embodiments, the support 16 is a plate, which can effectively improve the support stability of the first medium plate 11 and the second medium plate 13, and improve the stability of the overall structure.

[0089] ​In some embodiments, the at least one target side edge 162a corresponds to the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, which means that the projection of the at least one target side edge 162a along the stacking direction of the first dielectric plate 11, the support 16 and the second dielectric plate 13 can substantially coincide with the at least one first connecting side edge 11e and the at least one second connecting side edge 13e. Thus, the at least one target side edge 162a is substantially coplanar with the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, and the conductive connecting layer 15 is arranged on the coplanar at least one target side edge 162a, the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, which is conducive to improving the structural stability.

[0090] In some embodiments, when the antenna assembly 1 further comprises the support 16 in any of the foregoing embodiments, the support 16 in any of the foregoing embodiments can further be provided with functional devices, which include matching devices.

[0091] Thus, in some embodiments, while being supported by the support 16, certain matching devices can also be arranged, which is conducive to realizing the compactness of the structure and thus reducing the overall volume.

[0092] In some embodiments, the matching device is used to connect with the first conductive layer 12 as a feed layer, so that the electrical length of the third edge 12b and the fourth edge 12c of the first conductive layer 12 meets the requirements, for example, substantially equal to λ / 4.

[0093] In some embodiments, the functional devices can further include feed connections and the like, and the matching device can be electrically connected with the first conductive layer 12 as a feed layer through the feed connections. The feed connections can include conductive lines such as coaxial lines and microstrip lines, and can also include metal springs and the like.

[0094] Since the support plate 162 has a certain thickness, the at least one target side edge 162a also refers to a side edge face / side face with a certain area.

[0095] In some embodiments, the support 16 is arranged between the first dielectric plate 11 and the second dielectric plate 13, and can be fixed together by adhesion through adhesive such as glue, or by clamping.

[0096] In some embodiments, the functional devices, such as matching devices, etc. mounted on the support 16 can be connected with the first conductive layer 12 and / or the second conductive layer 14 through the conductive via holes, conductive half-holes or side copper-plated structures, etc. provided in the first dielectric plate 11 and / or the second dielectric plate 13, so as to realize the corresponding functions, such as matching adjustment functions.

[0097] In this way, since the space occupied by the functional devices is small, the inside of the cavity antenna T1 is still mostly empty space, so that the influence on the radiation performance of the cavity antenna T1 is small.

[0098] Please refer to Figure 5 and Figure 6 , Figure 5 for another simple schematic diagram of the antenna assembly 1 in some embodiments of the present application, Figure 6 for Figure 5 the exploded schematic diagram of the antenna assembly 1 shown in the figure.

[0099] As shown in Figure 5 and Figure 6 , in some embodiments, the first dielectric plate 11 and the second dielectric plate 13 are arranged in close contact, the second surface 11b of the first dielectric plate 11 and the fourth surface 13b of the second dielectric plate 13 are opposite and in close contact, the conductive connection layer 15 is connected between the first edge 12a of the first conductive layer 12 and the second edge 14a of the second conductive layer 14, and is arranged at the first connecting side edge 11e and the second connecting side edge 13e.

[0100] That is, in some embodiments, the first dielectric plate 11 and the second dielectric plate 13 can be directly stacked together, that is, the second surface 11b of the first dielectric plate 11 and the fourth surface 13b of the second dielectric plate 13 are opposite and in close contact, so that the stability of the structure can also be ensured, and since the conductive connection layer 15 is only arranged at the first connecting side edge 11e and the second connecting side edge 13e, the first side edge 11c and the second side edge 11d of the first dielectric plate 11 and the third side edge 13c and the fourth side edge 13d of the second dielectric plate 13 are not provided with a conductive layer, so that the side where the first side edge 11c and the third side edge 13c are located forms the empty side S1, and the side where the second side edge 11d and the fourth side edge 13d are located forms the empty side S2.

[0101] In some embodiments, when the first dielectric plate 11 and the second dielectric plate 13 are directly stacked together, at this time, the clearance side S1 can be substantially equal to the sum of the first connecting side edge 11e and the second connecting side edge 13e, and the clearance side S2 can be substantially equal to the sum of the second side edge 11d and the fourth side edge 13d.

[0102] In some embodiments, when the first dielectric plate 11 and the second dielectric plate 13 are directly stacked together, the first dielectric plate 11 and the second dielectric plate 13 can also be fixed together by adhesion through an adhesive such as glue, or by clamping.

[0103] Please refer to Figure 7 for another simple schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0104] In some embodiments, as Figure 7 shown, the first dielectric plate 11 and the second dielectric plate 13 are an integral dielectric plate 113, the first surface 11a of the first dielectric plate 11 and the third surface 13a of the second dielectric plate 13 are two opposite surfaces of the integral dielectric plate, and the conductive connecting layer 15 is connected between the first edge 12a of the first conductive layer 12 and the second edge 14a of the second conductive layer 14 and is arranged at the first connecting side edge 11e and the second connecting side edge 13e.

[0105] That is, in some embodiments, the first dielectric plate 11 and the second dielectric plate 13 are an integral dielectric plate 113, that is, a whole dielectric plate, and a cavity antenna T1 having two clearance sides S1 and S2 for electromagnetic wave signals to pass through is formed by arranging corresponding conductive layers on the whole dielectric plate.

[0106] Therefore, due to only one integral dielectric plate 113, the stability of the structure can be improved, and the manufacturing process can be simplified.

[0107] In some embodiments, when the first dielectric plate 11 and the second dielectric plate 13 are an integral dielectric plate 113, the first dielectric plate 11 and the second dielectric plate 13 can be virtually divided into two dielectric plates, and the first surface 11a of the first dielectric plate 11 and the third surface 13a of the second dielectric plate 13 are two opposite surfaces of the integral dielectric plate, the first side edge 11c of the first dielectric plate 11 and the third side edge 13c of the second dielectric plate 13 integrally form one side of the integral dielectric plate, the second side edge 11d of the first dielectric plate 11 and the fourth side edge 13d of the second dielectric plate 13 integrally form the other side of the integral dielectric plate, and the first connecting side edge 11e and the second connecting side edge 13e integrally form at least one connecting side between the two sides.

[0108] In the present application, the integral dielectric plate 113 mainly refers to a structure integrally formed or manufactured by a process at one time, and does not mean that the integral dielectric plate 113 only includes a single-layer dielectric plate structure.

[0109] In some embodiments, the integral dielectric plate 113 can be a circuit board including a multi-layer structure, the first dielectric plate 11 and the second dielectric plate 13 are two layers of the integral dielectric plate, and the integral dielectric plate further includes a carrier plate arranged between the first dielectric plate 11 and the second dielectric plate 13, the carrier plate is used to mount corresponding functional devices, and the functional devices include matching devices.

[0110] That is, in some embodiments, the integral dielectric plate 113 can also be an integral circuit board including a multi-layer structure. The integral dielectric plate further includes a carrier plate arranged between the first dielectric plate 11 and the second dielectric plate 13, the carrier plate is used to mount corresponding functional devices, and is beneficial to realize a compact structure and reduce the overall volume.

[0111] In some embodiments, the matching devices can also be used to connect with the first conductive layer 12 as a feed layer, so that the electrical length of the third edge 12b and the fourth edge 12c of the first conductive layer 12 meets the requirements, for example, is substantially equal to λ / 4.

[0112] In some embodiments, the functional devices can also include feed connectors and the like, and the matching devices can be electrically connected with the first conductive layer 12 as a feed layer through the feed connectors.

[0113] In some embodiments, the integrated dielectric plate 113 is a multi-layer circuit board, and when the integrated dielectric plate 113 further comprises a carrier plate arranged between the first dielectric plate 11 and the second dielectric plate 13, the functional device, such as a matching device, mounted on the carrier plate can be connected with the first conductive layer 12 and / or the second conductive layer 14 through the conductive via, conductive semi-via or side copper plating structure arranged in the first dielectric plate 11 and / or the second dielectric plate 13, so as to realize the corresponding function, such as matching adjustment function. At the same time, since the functional device occupies a small space, the inside of the cavity antenna T1 is still mostly empty space, so that the influence on the radiation performance of the cavity antenna T1 is small.

[0114] When the integrated dielectric plate 113 further comprises a carrier plate arranged between the first dielectric plate 11 and the second dielectric plate 13, the structure of the integrated dielectric plate 113 can be similar to the structures of the first dielectric plate 11, the second dielectric plate 13 and the support 16 shown in Figure 1 and Figure 4 The carrier plate can be similar to the support 16 and arranged between the first dielectric plate 11 and the second dielectric plate 13.

[0115] When the integrated dielectric plate 113 in the embodiment comprises a multi-layer circuit board, the multi-layer circuit board can be a pre-manufactured integrated structure.

[0116] In some embodiments, the integrated dielectric plate 113 can also only comprise a dielectric plate, that is, all made of dielectric material, so as to ensure the performance of the cavity antenna T1.

[0117] In some embodiments, the central region of the integrated dielectric plate 113 can also be hollowed out to form a hollow region, so as to improve the performance of the cavity antenna T1.

[0118] Please refer to Figure 8 and Figure 9 , Figure 8 for further structural schematic diagrams of the antenna assembly 1 of some embodiments of the present application. Figure 9 for Figure 8 the exploded schematic diagram of the antenna assembly 1 shown.

[0119] In some embodiments, as Figure 8As shown, the first conductive layer 12 is provided with a feed point F1 as a feed layer, the second conductive layer 14 is used to be electrically connected with the ground as a ground layer, at least the first conductive layer 12 and the first dielectric plate 11 are provided with a notch Q1 to form a receiving space for receiving a corresponding functional device, the functional device is mounted on the first dielectric plate 11 and / or the second dielectric plate 13, and the functional device includes a matching device.

[0120] That is, in some embodiments, when the antenna assembly 1 further includes a functional device such as a matching device, at least the first conductive layer 12 and the first dielectric plate 11 are provided with a notch Q1 to form a receiving space for receiving the functional device such as the matching device.

[0121] In some embodiments, the notch Q1 is provided on one side of the clearance side S1 or one side of the clearance side S2. Figure 8 and Figure 9 In the antenna assembly 1 in

[0122] In the antenna assembly 1 in Figure 8 and Figure 9 The antenna assembly 1 in the antenna assembly 1 in Figure 1 and Figure 2 The antenna assembly 1 in the antenna assembly 1 in

[0123] In some embodiments, as shown in Figure 8 and Figure 9 The notch Q1 also penetrates the support 16, that is, the notch Q1 is formed by being provided on the first conductive layer 12, the first dielectric plate 11, and the support 16.

[0124] In some embodiments, the notch Q1 can also be provided only on the first conductive layer 12 and the first dielectric plate 11, or the notch Q1 can further penetrate part of the second dielectric plate 13, and the notch Q1 can be provided on the first conductive layer 12, the first dielectric plate 11, the support 16, and the second dielectric plate 13.

[0125] In some embodiments, when the antenna assembly 1 does not include a matching device and the like, that is, the equivalent electrical length of the third edge 12b and the fourth edge 12c of the first conductive layer 12 is equal to the physical length of the third edge 12b and the fourth edge 12c of the first conductive layer 12, the antenna assembly 1 can also not be provided with the notch Q1.

[0126] In some embodiments, as shown in Figure 1 As shown in FIG. 1 and FIG. 2, the first conductive layer 12 is provided with a feeding point F1 as a feeding layer, and the antenna assembly 1 further comprises a feeding source 17 coupled with the first conductive layer 12 for providing the feeding signal to the first conductive layer 12.

[0127] In some embodiments, as shown in

[0128] As shown in FIG. 1 and FIG. 2, the first conductive layer 12 is provided with a feeding point F1 as a feeding layer, and the antenna assembly 1 further comprises a feeding source 17 coupled with the first conductive layer 12 for providing the feeding signal to the first conductive layer 12. Figure 10 As shown in FIG. 1 and FIG. 2, the first conductive layer 12 is provided with a feeding point F1 as a feeding layer, and the antenna assembly 1 further comprises a feeding source 17 coupled with the first conductive layer 12 for providing the feeding signal to the first conductive layer 12.

[0129] In some embodiments, as shown in Figure 10 As shown in FIG. 1 and FIG. 2, the first conductive layer 12 is provided with a feeding point F1 as a feeding layer, and the antenna assembly 1 further comprises a feeding source 17 coupled with the first conductive layer 12 for providing the feeding signal to the first conductive layer 12.

[0130] In some embodiments, as shown in

[0131] In some embodiments, as shown in

[0132] In some embodiments, as shown in

[0133] In some embodiments, as shown in

[0134] As shown in FIG. 1 and FIG. 2, the first conductive layer 12 is provided with a feeding point F1 as a feeding layer, and the antenna assembly 1 further comprises a feeding source 17 coupled with the first conductive layer 12 for providing the feeding signal to the first conductive layer 12. Figure 11 As shown in FIG. 1 and FIG. 2, the first conductive layer 12 is provided with a feeding point F1 as a feeding layer, and the antenna assembly 1 further comprises a feeding source 17 coupled with the first conductive layer 12 for providing the feeding signal to the first conductive layer 12. Figure 10 As shown in FIG. 1 and FIG. 2, the first conductive layer 12 is provided with a feeding point F1 as a feeding layer, and the antenna assembly 1 further comprises a feeding source 17 coupled with the first conductive layer 12 for providing the feeding signal to the first conductive layer 12.

[0135] In some embodiments, as shown in Figure 11As shown, the matching unit 18 is connected between the feed point F1 and the feed source 17, and is also connected with the ground layer / second conductive layer 14.

[0136] That is, in some embodiments, the first conductive layer 12 includes a feed point F1, and the matching unit 18 can be specifically coupled between the feed point F1 of the first conductive layer 12 and the feed source 17, and is also connected with the second conductive layer 14. The feed source 17 is directly connected with the feed point F1 of the first conductive layer 12 through the matching unit 18, and excites the first conductive layer 12 through the impedance matching adjustment of the matching unit 18, so as to excite the cavity antenna T1 to at least support the reception of electromagnetic wave signals in the preset frequency band. That is, in some embodiments, as shown in FIG. 1, the feed source 17 is directly connected with the feed point F1 of the first conductive layer 12 to realize the feed point, and is not connected with the second conductive layer 14. Figure 11 As shown, compared with the structure of the antenna assembly 1 shown in FIG. 1, the matching unit 18 is further connected with the ground layer / second conductive layer 14. Figure 10 As shown in the structure of the antenna assembly 1, the matching unit 18 can be further connected with the ground layer / second conductive layer 14.

[0137] In some embodiments, the matching unit 18 can include three connection ends, which are respectively connected with the feed point F1 of the first conductive layer 12, the second conductive layer 14, and the feed source 17. At this time, the matching unit 18 can include a matching device connected with the ground layer / second conductive layer 14, and can also include a matching device connected between the feed point F1 of the first conductive layer 12 and the feed source 17, so as to improve the matching performance.

[0138] In some embodiments, when the matching unit 18 is not included, the feed source 17 can be directly connected with the feed point F1 of the first conductive layer 12, and outputs a feed signal to the feed point F1 of the first conductive layer 12, so as to excite the cavity antenna T1 to at least support the reception of electromagnetic wave signals in the preset frequency band. That is, at this time, the feed source 17 is directly connected with the feed point F1 of the first conductive layer 12 to realize the feed point, and is not connected with the second conductive layer 14.

[0139] In some embodiments, the feeding point F1 can be arranged at any position of the first conductive layer 12. For example, the feeding point F1 can be arranged at any position of the third edge 12b of the first conductive layer 12, or arranged at a position close to the third edge 12b and the projection of the position on the third edge 12b is located on the third edge 12b. Alternatively, the feeding point F1 can be arranged at the fourth edge 12c of the first conductive layer 12, or arranged at a position close to the fourth edge 12c and the projection of the position on the fourth edge 12c is located on the fourth edge 12c. In some embodiments, the feeding point F1 can also be arranged at a position close to the middle of the first conductive layer 12. In some embodiments, the vertical distance between the feeding point F1 and the conductive connection layer 15 along the extension direction of the third edge 12b or the fourth edge 12c can be 1 / 3, 1 / 2 or 2 / 3 of the length of the third edge 12b or the fourth edge 12c, etc. In some embodiments, the feeding point F1 can be arranged at a position close to the third edge 12b and the projection of the position on the third edge 12b is located on the third edge 12b. Figure 10 and Figure 11 For example, the feeding point F1 can be arranged at a position close to the third edge 12b and the projection of the position on the third edge 12b is located on the third edge 12b.

[0140] In some embodiments, the feeding point F1 can be arranged at any position of the first conductive layer 12. For example, the feeding point F1 can be arranged at any position of the third edge 12b of the first conductive layer 12, or arranged at a position close to the third edge 12b and the projection of the position on the third edge 12b is located on the third edge 12b. Alternatively, the feeding point F1 can be arranged at the fourth edge 12c of the first conductive layer 12, or arranged at a position close to the fourth edge 12c and the projection of the position on the fourth edge 12c is located on the fourth edge 12c. In some embodiments, the feeding point F1 can also be arranged at a position close to the middle of the first conductive layer 12. In some embodiments, the vertical distance between the feeding point F1 and the conductive connection layer 15 along the extension direction of the third edge 12b or the fourth edge 12c can be 1 / 3, 1 / 2 or 2 / 3 of the length of the third edge 12b or the fourth edge 12c, etc. In some embodiments, the feeding point F1 can be arranged at a position close to the third edge 12b and the projection of the position on the third edge 12b is located on the third edge 12b.

[0141] In some embodiments, the matching unit 18 can include a capacitor and / or an inductor. For example, the matching unit 18 can include a parallel inductor and capacitor, or a series inductor and capacitor, or a structure of an inductor and capacitor in parallel connected with an inductor or a capacitor in series, or a structure of a series inductor and capacitor connected with a capacitor or an inductor in parallel, etc.

[0142] In some embodiments, the matching unit 18 can include a capacitor and / or an inductor. For example, the matching unit 18 can include a parallel inductor and capacitor, or a series inductor and capacitor, or a structure of an inductor and capacitor in parallel connected with an inductor or a capacitor in series, or a structure of a series inductor and capacitor connected with a capacitor or an inductor in parallel, etc.Figure 10 and Figure 11 For example, the matching unit 18 can be further added to the structure of the antenna assembly 1 shown in Figure 1 It is obvious that the matching unit 18 can be further added to the antenna assembly 1 in any of the foregoing embodiments.

[0143] In some embodiments, the matching unit 18 is an adjustable matching unit, and the matching parameter value of the matching unit 18 is adjustable, so that the preset frequency band supported by the cavity antenna T1 under the excitation of the feed signal is adjustable.

[0144] That is, in some embodiments, the matching parameter value of the matching unit 18 is adjustable, and the preset frequency band at which the cavity antenna T1 resonates is different when the matching parameter value of the matching unit 18 is different, so that the preset frequency band can be adjusted by adjusting the matching parameter value of the matching unit 18.

[0145] For example, in some embodiments, the matching unit 18 can include a plurality of matching branches, each of which includes a matching element / matching device and a matching switch connected in series, the types of the matching elements in different matching branches are different and / or have different matching parameter values, and the matching parameter value presented by the matching unit 18 as a whole can be changed by different matching switches being in the on state, so that the preset frequency band supported by the cavity antenna T1 under the excitation of the feed signal is different.

[0146] In this way, when the matching parameter value of the matching unit 18 is different, the equivalent electrical lengths of the third edge 12b and the fourth edge 12c of the first conductive layer 12 under the matching of the matching unit 18 are different, so that the preset frequency band at which the cavity antenna T1 resonates is different, that is, the preset frequency band supported by the cavity antenna T1 under the excitation of the feed signal is different.

[0147] In this way, when the matching parameter value of the matching unit 18 is different, the equivalent electrical lengths of the third edge 12b and the fourth edge 12c of the first conductive layer 12 under the matching of the matching unit 18 are different, so that the preset frequency band at which the cavity antenna T1 resonates is different, that is, the preset frequency band supported by the cavity antenna T1 under the excitation of the feed signal is different.

[0148] In this way, in some embodiments, when the matching unit 18 is an adjustable matching unit, the equivalent electrical lengths of the third edge 12b and the fourth edge 12c of the first conductive layer 12 can be adjusted, so that the preset frequency band supported by the cavity antenna T1 under the excitation of the feed signal is different, thereby the frequency bandwidth of the cavity antenna T1 can be widened.

[0149] For example, the matching unit 18 can be further added to the structure of the antenna assembly 1 shown in Figure 12 For example, the matching unit 18 can be further added to the structure of the antenna assembly 1 shown in

[0150] In some embodiments, the first conductive layer 12 is provided with a feed point F1 as a feed layer, the second conductive layer 14 is used to be electrically connected with the ground as a ground layer, and the first conductive layer 12 is further provided with a tuning point P1 which is arranged apart from the feed point F1.

[0151] In some embodiments, as shown in Figure 12 The antenna assembly 1 further comprises a tuning unit 19 which is connected between the tuning point P1 and the second conductive layer 14.

[0152] The tuning unit 19 can present a corresponding tuning parameter value, and the tuning parameter value presented by the tuning unit 19 is adjustable. According to the different tuning parameter values of the tuning unit 19, the preset frequency bands supported by the cavity antenna T1 under the excitation of the feed signal are different.

[0153] The tuning unit 19 mainly plays a matching tuning role. When the tuning parameter value presented by the tuning unit 19 is different, the equivalent electrical lengths of the third edge 12b and the fourth edge 12c of the first conductive layer 12 are also different, so that the preset frequency bands supported by the cavity antenna T1 for resonance are different, i.e., the preset frequency bands supported by the cavity antenna T1 under the excitation of the feed signal are different.

[0154] Therefore, in some embodiments, the first conductive layer 12 is further provided with a tuning point P1 which is arranged apart from the feed point F1, and the tuning unit 19 is further connected between the tuning point P1 and the second conductive layer 14, which can effectively realize the adjustment of the preset frequency bands, so that the frequency width of the cavity antenna T1 can be widened.

[0155] In some embodiments, the tuning point P1 can also be arranged at any position of the first conductive layer 12. For example, the tuning point P1 can be arranged at any position of the third edge 12b of the first conductive layer 12, or arranged at a position close to the third edge 12b and the projection of the third edge 12b on the third edge 12b is located on the third edge 12b. Alternatively, the tuning point P1 can be arranged at a position of the fourth edge 12c of the first conductive layer 12, or arranged at a position close to the fourth edge 12c of the first conductive layer 12 and the projection of the fourth edge 12c on the fourth edge 12c is located on the fourth edge 12c, as long as it is arranged apart from the feed point F1. Figure 12 In some embodiments, the tuning point P1 is arranged at a position close to the fourth edge 12c of the first conductive layer 12 and the projection of the fourth edge 12c on the fourth edge 12c is located on the fourth edge 12c.

[0156] Figure 12 In order to arrange the tuning point P1 at a position close to the fourth edge 12c of the first conductive layer 12 and the projection of the fourth edge 12c on the fourth edge 12c is located on the fourth edge 12c,Figure 1 The tuning unit 19 is further added to the structure of the antenna assembly 1 shown as an example. Obviously, the tuning unit 19 can be further added to the antenna assembly 1 in any of the foregoing embodiments.

[0157] Please refer to Figure 13 for a structural diagram of the tuning unit 19 in some embodiments of the present application.

[0158] As Figure 13 shown, in some embodiments, the tuning unit 19 can include a plurality of matching branches 191 electrically connected between the tuning point P1 and the second conductive layer 14 as the ground layer, wherein at least part of the matching branches 191 have different matching parameter values, and each matching branch 191 can be in an enabled or disabled state, and the tuning unit 19 as a whole presents different matching parameter values according to the different matching branches 191 in the enabled state or the number of matching branches 191 in the enabled state.

[0159] Wherein, the matching parameter values can include capacitance values and / or inductance values, and the matching parameter values presented by the tuning unit 19 as a whole can be the impedance values formed by the capacitance and / or inductance values of the tuning unit 19 as a whole.

[0160] Wherein, when the tuning unit 19 as a whole presents different matching parameter values, better impedance matching of different frequency bands can be achieved, and adjustment of the preset frequency band can be achieved.

[0161] In some embodiments, as Figure 13 shown, the tuning unit 19 further includes a switch module 192, wherein the switch module 192 is connected between the plurality of matching branches 191 and the second conductive layer 14 as the ground layer, and the plurality of matching branches 191 are connected in parallel between the tuning point P1 and the switch module 192; or the switch module 192 is connected between the plurality of matching branches 191 and the tuning point P1, and the plurality of matching branches 191 are connected in parallel between the switch module 192 and the second conductive layer 14 as the ground layer. Wherein, the switch module 192 is used to turn on the electrical connection between the corresponding matching branch 191 and the tuning point P1 and the second conductive layer 14 as the ground layer, so that the corresponding matching branch 191 is in the enabled state, wherein each matching branch 191 includes a matching element M1, wherein the matching element M1 includes a capacitor or an inductor, and by turning on the electrical connection between different matching branches 191 and the tuning point P1 and the second conductive layer 14 as the ground layer through the switch module 192, the matching branches 191 in the enabled state can be switched.

[0162] wherein, Figure 13 In some embodiments, the switch module 192 is connected between the plurality of matching branches 191 and the second conductive layer 14 as the ground layer, and the plurality of matching branches 191 are connected in parallel between the switch module 192 and the tuning point P1.

[0163] As shown in FIG. 6, in some embodiments, the switch module 192 can include a plurality of matching switches M2, each of which is connected in series with the matching element M1 of the corresponding matching branch 191. Figure 13 As shown in FIG. 6, in some embodiments, the switch module 192 can include a plurality of matching switches M2, each of which is connected in series with the matching element M1 of the corresponding matching branch 191.

[0164] As shown in FIG. 6, in some embodiments, the switch module 192 can include a plurality of matching switches M2, each of which is connected in series with the matching element M1 of the corresponding matching branch 191. Figure 13 As shown in FIG. 6, in some embodiments, the switch module 192 can include a plurality of matching switches M2, each of which is connected in series with the matching element M1 of the corresponding matching branch 191.

[0165] In some embodiments, the matching element M1 can include a capacitor and / or an inductor, and the matching parameter value of the matching element M1 can include a capacitance value and / or an inductance value.

[0166] In some embodiments, the matching parameter values of the matching elements M1 in different matching branches 191 are different, including different types and / or different parameter values of the matching elements M1 in different matching branches 191.

[0167] For example, the matching element M1 of a certain matching branch 191 includes a capacitor, the matching element M1 of another matching branch 191 includes an inductor, and the matching element M1 of another matching branch 191 also includes a capacitor, but the capacitance value of the capacitor is different from that of the capacitor included in other matching branches, and so on.

[0168] In some embodiments, the matching elements M1 can include a single element or multiple elements, for example, include a single capacitor or inductor, or can include multiple capacitors / inductors in series or in parallel. Wherein each matching element M1 includes the same type of element, for example, a certain matching element M1 can include one or more capacitors, or include one or more inductors.

[0169] In some embodiments, part of the matching elements M1 can also only include a conductive line, that is, do not include a capacitor and / or an inductor.

[0170] Wherein, Figure 13 For example, the number of matching branches 191 is four, and the four matching branches 191 include a capacitor, a capacitor, an inductor, and a conductive line as the matching elements M1, respectively.

[0171] Wherein, Figure 13 The tuning unit 19 shown is only an exemplary structure.

[0172] In some embodiments, the switch module 192 can also include a single-pole multi-throw switch, for example, one end of the matching elements M1 in the plurality of matching branches 191 is connected with the second conductive layer 14 as the ground layer, and the single-pole multi-throw switch is used to selectively establish a connection between the other end of the matching element M1 in one of the matching branches 191 and the tuning point P1, so that the matching element M1 in one of the matching branches 191 is electrically connected between the tuning point P1 and the second conductive layer 14 as the ground layer. Wherein, the single-pole multi-throw switch can include a fixed end and a throw end, the fixed end is fixedly connected with the tuning point P1, and the throw end can be selectively connected with the other end of the matching element M1 in one of the matching branches 191. Wherein, when the switch module 192 is located between the plurality of matching branches 191 and the second conductive layer 14 as the ground layer, one end of the matching elements M1 in the plurality of matching branches 191 is connected with the tuning point P1, and the fixed end of the single-pole multi-throw switch included in the switch module 192 can be connected with the second conductive layer 14 as the ground layer, and the throw end can be selectively connected with the other end of the matching element M1 in one of the matching branches 191.

[0173] In some embodiments, when the antenna assembly 1 includes the aforementioned matching unit 18, and the matching unit 18 is an adjustable matching unit, the structure of the matching unit 18 can also be similar to that of the aforementioned tuning unit 19.

[0174] In some embodiments, the antenna assembly 1 can also simultaneously include the matching unit 18 and the tuning unit 19, and when the matching unit 18 is an adjustable matching unit, the matching adjustment can be simultaneously performed by the matching unit 18 and the tuning unit 19, so as to increase the fineness of the adjustment and improve the accuracy of the tuning.

[0175] Please refer to Figure 14 , which is a further structural schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0176] As Figure 14 shown, in some embodiments, the antenna assembly 1 includes the feed source 17, and further includes a feed coupling branch 20, which is spaced apart from and parallel to the third edge 12b and / or the fourth edge 12c of the first conductive layer 12 and coupled with the first conductive layer 12, wherein the third edge 12b of the first conductive layer 12 corresponds to the first side edge 11c, and the fourth edge 12c of the first conductive layer 12 corresponds to the second side edge 11d; the feed source 17 is electrically connected with the feed coupling branch 20, so as to be coupled with the first conductive layer 12 through the feed coupling branch 20, and the feed source 17 couples and excites the cavity antenna T1 through the feed coupling branch 20, and the cavity antenna T1 supports the reception of the electromagnetic wave signals in the preset frequency band under the coupling and excitation of the feed source 17.

[0177] That is, in some embodiments, the coupling of the feed source 17 with the first conductive layer 12 can be the coupling of the feed source 17 with the first conductive layer 12 through the feed coupling branch 20. Therefore, in some embodiments, the feed source 17 couples and excites the cavity antenna T1 through the feed coupling branch 20.

[0178] Therefore, in some embodiments, the cavity antenna T1 can also be effectively excited to support the transmission and reception of the electromagnetic wave signals in the preset frequency band through the coupling and excitation.

[0179] In some embodiments, the feed coupling branch 20 can be a conductive branch such as a metal branch, or can also be a coupling sheet made of FPC (flexible circuit board), steel sheet, copper sheet or PCB extension copper process.

[0180] In some embodiments, the feed coupling branch 20 can be a conductive branch such as a metal branch, or can also be a coupling sheet made of FPC (flexible circuit board), steel sheet, copper sheet or PCB extension copper process. Figure 14 Figure 1 In some embodiments, the feed coupling branch 20 can be a conductive branch such as a metal branch, or can also be a coupling sheet made of FPC (flexible circuit board), steel sheet, copper sheet or PCB extension copper process.

[0181] Please refer to Figure 15 , which is a further structural schematic diagram of the antenna assembly 1 in some embodiments of the present application. Figure 14 ​A structural schematic diagram of the antenna assembly 1 in a variant example.

[0182] In some embodiments, as Figure 15 shown, when the antenna assembly 1 further comprises the aforementioned matching unit 18, the matching unit 18 is connected between the feed coupling branch 20 and the feed source 17, and is also connected with the second conductive layer 14 which is the ground layer, the matching unit 18 is coupled with the first conductive layer 12 through the feed coupling branch 20, the feed source 17 is coupled and excited the cavity antenna T1 through the matching unit 18 and the feed coupling branch 20, the cavity antenna T1 supports the transceiving of electromagnetic wave signals of at least a preset frequency band under the coupled and excited of the feed source 17 and the impedance matching adjustment of the matching unit 18.

[0183] That is, in some embodiments, as Figure 15 shown, compared with the structure of the antenna assembly 1 as Figure 14 shown, the matching unit 18 is connected between the feed coupling branch 20 and the feed source 17, and is also connected with the second conductive layer 14 which is the ground layer.

[0184] In some embodiments, the matching unit 18 can comprise three connection ends, respectively connected with the feed coupling branch 20, the second conductive layer 14 and the feed source 17, at this time, the matching unit 18 can comprise a matching device connected with the ground layer / second conductive layer 14, and can also comprise a matching device connected between the feed point F1 of the first conductive layer 12 and the feed source 17, so as to improve the matching performance.

[0185] In some embodiments, when the antenna assembly 1 comprises the feed coupling branch 20, and further comprises the aforementioned matching unit 18, the antenna assembly 1 can also be provided with the aforementioned notch Q1 for setting and accommodating the matching unit 18.

[0186] In some embodiments, the feed coupling branch 20 is a straight strip, which is spaced apart from and parallel to the third edge 12b or the fourth edge 12c of the first conductive layer 12 and is coupled with the first conductive layer 12.

[0187] That is, in some embodiments, the feed coupling branch 20 can be spaced apart from and parallel to any one of the third edge 12b and the fourth edge 12c of the first conductive layer 12 and is coupled with the first conductive layer 12. In some embodiments, Figure 14 and Figure 17In some embodiments, the feed coupling branch 20 can be coupled to the first conductive layer 12 by being spaced apart from and parallel to one of the edges of the first conductive layer 12 on the clearance side, so that the feed source 17 can effectively excite the cavity antenna T1 through the feed coupling branch 20.

[0188] In some embodiments, the feed coupling branch 20 can be coupled to the first conductive layer 12 by being spaced apart from and parallel to one of the edges of the first conductive layer 12 on the clearance side, so that the feed source 17 can effectively excite the cavity antenna T1 through the feed coupling branch 20.

[0189] In some embodiments, the projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12 is smaller than the size of the third edge 12b or the fourth edge 12c of the first conductive layer 12, and can be located at any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the feed coupling branch 20 can be directly opposite to any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12. The projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the area where the third edge 12b or the fourth edge 12c of the first conductive layer 12 is directly opposite to the feed coupling branch 20, is equivalent to a feed area, i.e., the equivalent feed area can be located at any suitable position of the first side edge 11c or the second side edge 11d.

[0190] In some embodiments, the projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12 is smaller than the size of the third edge 12b or the fourth edge 12c of the first conductive layer 12, and can be located at any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the feed coupling branch 20 can be directly opposite to any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12. The projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the area where the third edge 12b or the fourth edge 12c of the first conductive layer 12 is directly opposite to the feed coupling branch 20, is equivalent to a feed area, i.e., the equivalent feed area can be located at any suitable position of the first side edge 11c or the second side edge 11d. Figure 14 In some embodiments, the projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12 is smaller than the size of the third edge 12b or the fourth edge 12c of the first conductive layer 12, and can be located at any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the feed coupling branch 20 can be directly opposite to any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12. The projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the area where the third edge 12b or the fourth edge 12c of the first conductive layer 12 is directly opposite to the feed coupling branch 20, is equivalent to a feed area, i.e., the equivalent feed area can be located at any suitable position of the first side edge 11c or the second side edge 11d. Figure 15 In some embodiments, the projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12 is smaller than the size of the third edge 12b or the fourth edge 12c of the first conductive layer 12, and can be located at any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the feed coupling branch 20 can be directly opposite to any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12. The projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the area where the third edge 12b or the fourth edge 12c of the first conductive layer 12 is directly opposite to the feed coupling branch 20, is equivalent to a feed area, i.e., the equivalent feed area can be located at any suitable position of the first side edge 11c or the second side edge 11d.

[0191] In some embodiments, the projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12 is smaller than the size of the third edge 12b or the fourth edge 12c of the first conductive layer 12, and can be located at any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the feed coupling branch 20 can be directly opposite to any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12. The projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the area where the third edge 12b or the fourth edge 12c of the first conductive layer 12 is directly opposite to the feed coupling branch 20, is equivalent to a feed area, i.e., the equivalent feed area can be located at any suitable position of the first side edge 11c or the second side edge 11d. Figure 16 In some embodiments, the projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12 is smaller than the size of the third edge 12b or the fourth edge 12c of the first conductive layer 12, and can be located at any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the feed coupling branch 20 can be directly opposite to any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12. The projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the area where the third edge 12b or the fourth edge 12c of the first conductive layer 12 is directly opposite to the feed coupling branch 20, is equivalent to a feed area, i.e., the equivalent feed area can be located at any suitable position of the first side edge 11c or the second side edge 11d. Figure 16 In some embodiments, the projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12 is smaller than the size of the third edge 12b or the fourth edge 12c of the first conductive layer 12, and can be located at any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the feed coupling branch 20 can be directly opposite to any suitable position of the third edge 12b or the fourth edge 12c of the first conductive layer 12. The projection area of the feed coupling branch 20 on the third edge 12b or the fourth edge 12c of the first conductive layer 12, i.e., the area where the third edge 12b or the fourth edge 12c of the first conductive layer 12 is directly opposite to the feed coupling branch 20, is equivalent to a feed area, i.e., the equivalent feed area can be located at any suitable position of the first side edge 11c or the second side edge 11d.

[0192] That is, in some embodiments, the feeding coupling branch 20 can be spaced apart from and parallel to the third edge 12b and the fourth edge 12c of the first conductive layer 12 at the same time, so as to effectively increase the coupling area with the first conductive layer 12, effectively increase the coupling energy, and effectively improve the radiation performance of the cavity antenna T1 under the coupling excitation of the feed 17.

[0193] In some embodiments, as shown in Figure 16 When the feeding coupling branch 20 is in a bent shape and includes a first feeding coupling branch 201 and a second feeding coupling branch 202, the feeding coupling branch 20 can be arranged at the connection between the third edge 12b and the fourth edge 12c of the first conductive layer 12, and the connection between the first feeding coupling branch 201 and the second feeding coupling branch 202 of the feeding coupling branch 20 can be close to the connection between the third edge 12b and the fourth edge 12c of the first conductive layer 12.

[0194] In some embodiments, the distance between the feeding coupling branch 20 and the third edge 12b or the fourth edge 12c of the first conductive layer 12 can be any distance required for coupling between the feeding coupling branch 20 and the first conductive layer 12.

[0195] The feed 17 can be electrically connected to any suitable position of the feeding coupling branch 20, for example, can be electrically connected to the end, the middle position, etc. of the feeding coupling branch 20. That is, any position of the feeding coupling branch 20 can be used as a position for electrical connection with the feed 17, so as to receive the feeding signal output by the feed 17 through any position and couple and transmit to the first conductive layer 12, so as to couple and excite the first conductive layer 12.

[0196] In some embodiments, the first conductive layer 12, the second conductive layer 14, and the conductive connecting layer 15 can be made of conductive materials such as metal. In some embodiments, the first conductive layer 12, the second conductive layer 14, and the conductive connecting layer 15 can be formed on the surface and / or side of the corresponding dielectric plate by means such as etching, printing, etc. In some embodiments, the first conductive layer 12, the second conductive layer 14, and the conductive connecting layer 15 can also be in the form of a plate and be fixed to the surface and / or side of the corresponding dielectric plate by means such as bonding, clamping, etc.

[0197] In some embodiments, the first conductive layer 12, the second conductive layer 14, and the conductive connection layer 15 are all made of conductive materials, and the materials of the first conductive layer 12, the second conductive layer 14, and the conductive connection layer 15 may be the same or different. For example, in some embodiments, the first conductive layer 12, the second conductive layer 14, and the conductive connection layer 15 may all be made of metal materials such as copper. For another example, in some embodiments, the first conductive layer 12 and the second conductive layer 14 are made of metal materials, and the conductive connection layer 15 may be conductive foam. Therefore, in some embodiments, when the conductive connection layer 15 is conductive foam, it can realize the function of the cavity antenna T1 while also effectively protecting the surrounding side of the cavity antenna T1.

[0198] In some embodiments, the first conductive layer 12 and the second conductive layer 14 can also reuse partial structures in other conductive functional parts. For example, the first conductive layer 12 can be a partial area in the shielding cover, the second conductive layer 14 can be a partial area in the grounding plate, and so on.

[0199] In the present application, the first side edge 11c and the second side edge 11d are connected, and the at least one first connecting side edge 11e is connected between the first side edge 11c and the second side edge 11d, so that the first side edge 11c, the second side edge 11d and the at least one first connecting side edge 11e connected between the first side edge 11c and the second side edge 11d form the complete outer peripheral side edge of the first dielectric plate 11. The third side edge 13c and the fourth side edge 13d are connected, and the at least one second connecting side edge 13e is connected between the third side edge 13c and the fourth side edge 13d, so that the third side edge 13c, the fourth side edge 13d and the at least one second connecting side edge 13e connected between the third side edge 13c and the fourth side edge 13d form the complete outer peripheral side edge of the second dielectric plate 13. And the first edge 12a of the first conductive layer 12 and the second edge 14a of the second conductive layer 14 are connected by the conductive connecting layer 15, and the conductive connecting layer 15 is arranged on at least one of the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, so that when the second conductive layer 14 is used as a ground layer, the first edge 12a of the first conductive layer 12 is connected to the ground. In addition, the third edge 12b of the first conductive layer 12 corresponds to the first side edge 11c, the fifth edge 14b of the second conductive layer 14 corresponds to the third side edge 13c of the second dielectric plate 13, the third edge 12b of the first conductive layer 12 is arranged apart from the fifth edge 14b of the second conductive layer 14, the fourth edge 12c of the first conductive layer 12 corresponds to the second side edge 11d, the sixth edge 14c of the second conductive layer 14 corresponds to the fourth side edge 13d of the second dielectric plate 13, and the fourth edge 12c of the first conductive layer 12 is arranged apart from the sixth edge 14c of the second conductive layer 14, so that the third edge 12b of the first conductive layer 12 and the fifth edge 14b of the second conductive layer 14 form two opposite edges of one of the two clearance side surfaces S1, the fourth edge 12c of the first conductive layer 12 and the sixth edge 14c of the second conductive layer 14 form two opposite edges of the other of the two clearance side surfaces S2, and the other side surfaces of the cavity antenna T1 are formed by the conductive connecting layer 15 to form a closed side surface, so that the first conductive layer 12, the second conductive layer 14 and the conductive connecting layer 15 form the cavity antenna T1 with the two clearance side surfaces S1 and S2.

[0200] In the present application, the first side edge 11c and the second side edge 11d are connected, and the at least one first connecting side edge 11e is connected between the first side edge 11c and the second side edge 11d, so that the first side edge 11c, the second side edge 11d and the at least one first connecting side edge 11e connected between the first side edge 11c and the second side edge 11d form the complete outer peripheral side edge of the first dielectric plate 11. The third side edge 13c and the fourth side edge 13d are connected, and the at least one second connecting side edge 13e is connected between the third side edge 13c and the fourth side edge 13d, so that the third side edge 13c, the fourth side edge 13d and the at least one second connecting side edge 13e connected between the third side edge 13c and the fourth side edge 13d form the complete outer peripheral side edge of the second dielectric plate 13. And the first edge 12a of the first conductive layer 12 and the second edge 14a of the second conductive layer 14 are connected by the conductive connecting layer 15, and the conductive connecting layer 15 is arranged on at least one of the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, so that when the second conductive layer 14 is used as a ground layer, the first edge 12a of the first conductive layer 12 is connected to the ground. In addition, the third edge 12b of the first conductive layer 12 corresponds to the first side edge 11c, the fifth edge 14b of the second conductive layer 14 corresponds to the third side edge 13c of the second dielectric plate 13, the third edge 12b of the first conductive layer 12 is arranged apart from the fifth edge 14b of the second conductive layer 14, the fourth edge 12c of the first conductive layer 12 corresponds to the second side edge 11d, the sixth edge 14c of the second conductive layer 14 corresponds to the fourth side edge 13d of the second dielectric plate 13, and the fourth edge 12c of the first conductive layer 12 is arranged apart from the sixth edge 14c of the second conductive layer 14, so that the third edge 12b of the first conductive layer 12 and the fifth edge 14b of the second conductive layer 14 form two opposite edges of one of the two clearance side surfaces S1, the fourth edge 12c of the first conductive layer 12 and the sixth edge 14c of the second conductive layer 14 form two opposite edges of the other of the two clearance side surfaces S2, and the other side surfaces of the cavity antenna T1 are formed by the conductive connecting layer 15 to form a closed side surface, so that the first conductive layer 12, the second conductive layer 14 and the conductive connecting layer 15 form the cavity antenna T1 with the two clearance side surfaces S1 and S2. Figure 1As shown, the first side edge 11c includes opposite first and second ends D1 and D2, the second side edge 11d includes opposite third and fourth ends D3 and D4, the first end D1 of the first side edge 11c is connected to the third end D3 of the second side edge 11d, and the at least one first connecting side edge 11e is connected between the second end D2 of the first side edge 11c and the fourth end D4 of the second side edge 11d. The third side edge 13c includes opposite fifth and sixth ends D5 and D6, the fourth side edge 13d includes opposite seventh and eighth ends D7 and D8, the fifth end D5 of the third side edge 13c is connected to the seventh end D7 of the fourth side edge 13d, and the at least one second connecting side edge 13e is connected between the sixth end D6 of the third side edge 13c and the eighth end D8 of the fourth side edge 13d.

[0201] Thus, in the present application, the corresponding ends of the first and second side edges 11c and 11d are connected together, and the at least one first connecting side edge 11e is connected between the other corresponding ends of the first and second side edges 11c and 11d to form a complete outer periphery of the first conductive layer 12. The two corresponding ends of the third and fourth side edges 13c and 13d are connected together, and the at least one second connecting side edge 13e is connected between the other two corresponding ends of the third and fourth side edges 13c and 13d to form a complete outer periphery of the second dielectric plate 13.

[0202] In some embodiments, as shown in FIG. 1, the first and second side edges 11c and 11d of the first dielectric plate 11 and the at least one first connecting side edge 11e are substantially parallel to the third and fourth side edges 13c and 13d of the second dielectric plate 13. Figure 1 As shown, and as previously described, the projections of the first and second side edges 11c and 11d and the at least one first connecting side edge 11e of the first dielectric plate 11 on the second dielectric plate 13 substantially coincide with the third and fourth side edges 13c and 13d and the at least one second connecting side edge 13e, respectively.

[0203] That is, in some embodiments, the projection of the first side edge 11c of the first dielectric plate 11 on the second dielectric plate 13 coincides with the third side edge 13c, the projection of the second side edge 11d of the first dielectric plate 11 on the second dielectric plate 13 coincides with the fourth side edge 13d, and the projection of the at least one first connecting side edge 11e of the first dielectric plate 11 on the second dielectric plate 13 coincides with the at least one second connecting side edge 13e. Thus, the projection of the first conductive layer 12 on the second conductive layer 14 substantially coincides with the second conductive layer 14 to form a better cavity antenna T1.

[0204] Specifically, as mentioned above, since the first edge 12a of the first conductive layer 12 corresponds to the at least one first connecting side 11e, the third edge 12b corresponds to the first side 11c, the fourth edge 12c corresponds to the second side 11d, the second edge 14a of the second conductive layer 14 corresponds to the at least one second connecting side 13e, the fifth edge 14b corresponds to the third side 13c of the second dielectric plate 13, and the sixth edge 14c corresponds to the fourth side 13d of the second dielectric plate 13, when the projection of each side of the first dielectric plate 11 on the second dielectric plate 13 substantially coincides with the corresponding side of the second dielectric plate 13, the projection of the first edge 12a of the first conductive layer 12 on the second conductive layer 14 will substantially coincide with the second edge 14a of the second conductive layer 14, the projection of the third edge 12b of the first conductive layer 12 on the second conductive layer 14 will substantially coincide with the fifth edge 14b of the second conductive layer 14, and the projection of the fourth edge 12c of the first conductive layer 12 on the second conductive layer 14 will substantially coincide with the sixth edge 14c of the second conductive layer 14, so that the projection of the first conductive layer 12 on the second conductive layer 14 substantially coincides with the second conductive layer 14, thereby forming a better cavity antenna T1.

[0205] Obviously, the coincidence of the two objects in the present application is not strictly coincident, but substantially coincident, allowing a certain deviation, and the two objects are parallel and the distance is less than a predetermined distance, for example, 5 mm (millimeters), or the two objects intersect and the included angle is less than a predetermined angle, for example, 20°, which can also be considered as coincident.

[0206] In some embodiments, the first side 11c and the second side 11d are both straight strips and are connected perpendicularly, and the third side 13c and the fourth side 13d are both straight strips and are connected perpendicularly; the number of the at least one first connecting side 11e is at least one, and each first connecting side is linear, arc-shaped or irregularly shaped, and the number of the at least one second connecting side 13e is at least one, and each second connecting side 13e is linear, arc-shaped or irregularly shaped.

[0207] That is, in some embodiments, the first side 11c and the second side 11d are both straight strips and are connected at an angle, and specifically perpendicularly, and the third side 13c and the fourth side 13d are both straight strips and are connected at an angle, and specifically perpendicularly, and the number and shape of the at least one first connecting side 11e and the at least one second connecting side 13e can be set as needed.

[0208] In the present application, the two objects are connected vertically, which does not mean strictly vertical, but approximately vertical, for example, the included angle between the two objects can be between 80° and 100°, etc., which can be considered as vertical.

[0209] In the present application, the first side edge 11c, the second side edge 11d, and the at least one first connecting side edge 11e are straight strips, which means that the projection of the first side edge 11c, the second side edge 11d, and the at least one first connecting side edge 11e along the thickness direction of the first dielectric plate 11 is a straight line. As described above, the first side edge 11c, the second side edge 11d, and the at least one first connecting side edge 11e have a certain size in the thickness direction, so they are straight strips. The third side edge 13c, the fourth side edge 13d, and the at least one second connecting side edge 13e are straight strips, which means that the projection of the third side edge 13c, the fourth side edge 13d, and the at least one second connecting side edge 13e along the thickness direction of the second dielectric plate 13 is a straight line. As described above, the third side edge 13c, the fourth side edge 13d, and the at least one second connecting side edge 13e have a certain size in the thickness direction of the second dielectric plate 13, so they are straight strips. Correspondingly, since the first edge 12a of the first conductive layer 12 corresponds to the at least one first connecting side edge 11e, the third edge 12b corresponds to the first side edge 11c, the fourth edge 12c corresponds to the second side edge 11d, the second edge 14a of the second conductive layer 14 corresponds to the at least one second connecting side edge 13e, the fifth edge 14b corresponds to the third side edge 13c of the second dielectric plate 13, and the sixth edge 14c corresponds to the fourth side edge 13d of the second dielectric plate 13, they are all approximately straight strips, or when the thickness of the first conductive layer 12 and the second conductive layer 14 is small, they can also be considered as straight lines. In some embodiments, the thickness of the conductive layer such as the first conductive layer 12, the second conductive layer 14, and the conductive connecting layer 15 can be smaller than the thickness of the dielectric plate such as the first dielectric plate 11 and the second dielectric plate 13. Relatively, the thickness of the conductive layer such as the first conductive layer 12, the second conductive layer 14, and the conductive connecting layer 15 can be ignored.

[0210] In some embodiments, as Figure 1As shown, the at least one first connecting side edge 11e includes two first connecting side edges 11e which are straight strips and are connected between the second end D2 of the first side edge 11c and the fourth end D4 of the second side edge 11d in sequence; and the at least one second connecting side edge 13e includes two second connecting side edges 13e which are straight strips and are connected between the sixth end D6 of the third side edge 13c and the eighth end D8 of the fourth side edge 13d in sequence.

[0211] That is, in some embodiments, the at least one first connecting side edge 11e and the at least two second connecting side edges 13e can both be two and both be straight strips.

[0212] In some embodiments, as shown, Figure 1 As shown, the two first connecting side edges 11e are parallel to the first side edge 11c and the second side edge 11d respectively, and the two second connecting side edges 13e are parallel to the third side edge 13c and the fourth side edge 13d respectively. Thus, since the first side edge 11c and the second side edge 11d are both straight strips and are connected substantially perpendicularly, the third side edge 13c and the fourth side edge 13d are both straight strips and are connected substantially perpendicularly, and the length of the first side edge 11c and the second side edge 11d is substantially equal and is λ / 4, the two first connecting side edges 11e are also connected substantially perpendicularly between them, and the length thereof is equal and is λ / 4. At this time, the cavity antenna T1 is formed as a cavity antenna whose projection in the direction from the first conductive layer 12 to the second conductive layer 14 is a square. At this time, compared with a conventional rectangular cavity antenna, the volume can be effectively reduced, which is almost only half of the conventional rectangular cavity antenna, and the volume can be reduced by half.

[0213] Obviously, in other embodiments, the two first connecting side edges 11e can also not be parallel to the first side edge 11c and the second side edge 11d respectively, and the two second connecting side edges 13e can also not be parallel to the third side edge 13c and the fourth side edge 13d respectively, as long as it is ensured that the projection of the at least one first connecting side edge 11e of the first dielectric plate 11 on the second dielectric plate 13 substantially coincides with the at least one second connecting side edge 13e.

[0214] In the present application, since the conductive connecting layer 15 is connected between the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, the shape of the projection of the conductive connecting layer 15 on the first conductive layer 12 or on the second dielectric plate 13 is the same as the projection shape of the at least one first connecting side edge 11e or the at least one second connecting side edge 13e. Therefore, when the at least one first connecting side edge 11e and the at least two second connecting side edges 13e are both two straight strips, the conductive connecting layer 15 accordingly includes two planes connected to each other.

[0215] Referring to Figure 17 , another simple structure diagram of the antenna assembly 1 in some embodiments of the present application is shown. As Figure 17 shown, the at least one first connecting side edge 11e includes one first connecting side edge 11e, which is in any shape such as an arc strip, a straight strip or an irregular shape, and is connected between the second end D2 of the first side edge 11c and the fourth end D4 of the second side edge 11d; the at least one second connecting side edge 13e includes one second connecting side edge 13e, which is in any shape such as an arc, a straight line or an irregular shape, and is connected between the third side edge 13c and the fourth side edge 13d.

[0216] That is, in some embodiments, the number of the at least one first connecting side edge 11e and the at least one second connecting side edge 13e can be only one.

[0217] In the present application, since the conductive connecting layer 15 is connected between the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, the shape of the projection of the conductive connecting layer 15 on the first conductive layer 12 or on the second dielectric plate 13 is the same as the projection shape of the at least one first connecting side edge 11e or the at least one second connecting side edge 13e. Therefore, when the at least one first connecting side edge 11e and the at least two second connecting side edges 13e are both two straight strips, the conductive connecting layer 15 accordingly includes two planes connected to each other. Figure 17 In the present application, since the conductive connecting layer 15 is connected between the at least one first connecting side edge 11e and the at least one second connecting side edge 13e, the shape of the projection of the conductive connecting layer 15 on the first conductive layer 12 or on the second dielectric plate 13 is the same as the projection shape of the at least one first connecting side edge 11e or the at least one second connecting side edge 13e. Therefore, when the at least one first connecting side edge 11e and the at least two second connecting side edges 13e are both two straight strips, the conductive connecting layer 15 accordingly includes two planes connected to each other. Figure 17 As shown in

[0218] Therefore, by setting the at least one first connecting side edge 11e and the at least one second connecting side edge 13e as an arc structure respectively, the overall size of the cavity antenna T1 can be further reduced.

[0219] wherein, Figure 17 Most elements and element symbols are omitted mainly to show the shape of the cavity antenna T1.

[0220] Please refer to Figure 18 , another simple structure diagram of the antenna assembly 1 in some embodiments of the present application. As Figure 5 shown, the at least one first connecting side edge 11e and the at least one second connecting side edge 13e are both one, and are straight strips. Correspondingly, the edge where the first edge 12a of the first conductive layer 12 is located is also a straight line, and the edge where the second edge 14a of the second conductive layer 14 is located is also a straight line. Thus, as Figure 18 shown, the cavity antenna T1 formed by the first conductive layer 12, the second dielectric plate 13 and the conductive connecting layer 15 of the antenna assembly 1 is roughly triangular, and the conductive connecting layer 15 is planar. Compared with Figure 1 the structure shown in the figure, the size can be further reduced by nearly half, which is more conducive to reducing the overall size of the cavity antenna T1.

[0221] wherein, Figure 18 Most elements and element symbols are omitted mainly to show the shape of the cavity antenna T1.

[0222] Obviously, as described before, in some embodiments, the at least one first connecting side edge 11e includes one first connecting side edge 11e, which can also be any shape such as an irregular shape; and the at least one second connecting side edge 13e includes one second connecting side edge 13e, which can also be any shape such as an irregular shape.

[0223] wherein, the preset frequency band can be any frequency band, for example, it can be a high frequency band such as a WiFi 2.4G / WiFi 5G frequency band, or a medium-high frequency band such as a GPS L1 (1575MHz) frequency band or a GPS L5 (1176MHz) frequency band, or even a low frequency band. The preset frequency band can also be other navigation communication frequency bands or cellular communication frequency bands. Since the lower the frequency band, the larger the required antenna size, the antenna assembly 1 of the present application can effectively reduce the overall size, and can adapt to lower frequency bands, making it possible to realize lower frequency bands.

[0224] In some embodiments, when the antenna assembly 1 comprises the matching unit 18 and / or the tuning unit 19, the preset frequency band can comprise a plurality of frequency bands, i.e., the antenna assembly 1 can support the transceiving of electromagnetic wave signals of a plurality of frequency bands under the matching adjustment of the matching unit 18 and / or the tuning unit 19. In some embodiments, the antenna assembly 1 can change at least one of the supported frequency bands under the matching adjustment of the matching unit 18 and / or the tuning unit 19.

[0225] Therefore, in the present application, by forming the cavity antenna T1 with the above structure, radiation can be performed through the clearance side, and good antenna radiation performance can be achieved only by having a certain clearance near the clearance side, so that the demand for the clearance area is very small, and the cavity antenna can be applied in an environment with a small clearance area. In addition, in the prior art, a general cavity antenna realizes clearance through an opening or the like on one side, i.e., only one clearance side, and the clearance side is rectangular, and the maximum point of the electric field is located at the middle point of the long side of the clearance side. In order to meet the minimum boundary condition of electromagnetic oscillation, the long side of the clearance side needs to be λ / 2, so that the distance between the maximum point of the electric field and the end of the long side of the clearance side, i.e., the distance between the conductive side wall, is λ / 4 to support the resonance of the corresponding frequency band. Therefore, the size of the long side of the cavity antenna T1 in the prior art, i.e., the long side on the clearance side, needs to be at least λ / 2. However, the cavity antenna T1 in the present application has two clearance sides S1 and S2, and the first side edge 11c on the clearance side S1 is connected to the second side edge 11d on the clearance side S2, and the third side edge 13c on the clearance side S1 is connected to the fourth side edge 13d on the clearance side S2, which is equivalent to the connection of the two clearance sides S1 and S2, such as the connection at an angle, so that the maximum point of the electric field is approximately the point of intersection of the two clearance sides S1 and S2, and the required length of each clearance side is less than λ / 2, which can effectively reduce the overall size of the cavity antenna. In addition, in the present application, the cavity antenna T1 is formed by providing a conductive layer on a dielectric plate, and the stability of the structure can be improved by the bearing action of the dielectric plate. Compared with the conductive side wall of the cavity antenna formed by a spring or the like in the prior art and further locked by a screw, the performance of the cavity antenna can be effectively improved, and the use of screws can be avoided to reduce the overall volume.

[0226] Please refer to Figure 19 , which is a simple structure diagram schematically showing part of the internal structure of an electronic device 100 in some embodiments of the present application. The electronic device 100 can comprise the antenna assembly 1 in any of the preceding embodiments.

[0227] Among them, Figure 19 A simple example of the antenna assembly 1 in the electronic device 100 is schematically shown in FIG. 11. As shown in FIG. 11, the antenna assembly 1 in the electronic device 100 can be arranged on the back of the electronic device 100, and the antenna assembly 1 can be arranged on the side of the electronic device 100.Figure 19 As shown, the electronic device 100 includes two adjacent side frames 2, and the two clearance sides S1, S2 are respectively adjacent to and spaced apart from the two adjacent side frames 2.

[0228] As described above, the first conductive layer 12, the second conductive layer 14 and the conductive connecting layer 15 of the antenna assembly 1 form a cavity antenna T1 with two clearance sides S1, S2. Generally, the clearance sides S1, S2 of the cavity antenna T1 are the radiation windows of electromagnetic wave signals, so that the two clearance sides S1, S2 are respectively adjacent to and spaced apart from the two adjacent side frames 2, so that the clearance area near the side frames 2 of the electronic device 100 can be used for the transmission and reception of electromagnetic wave signals, and the antenna performance can be ensured.

[0229] In some embodiments, the two clearance sides S1, S2 are respectively parallel to the two adjacent side frames 2.

[0230] As described above, in some embodiments, the first side 11c and the second side 11d are both straight strips and are connected perpendicularly, and the third side 13c and the fourth side 13d are both straight strips and are connected perpendicularly. Since the first side 11c and the third side 13c are located at one of the clearance sides S1, and the second side 11d and the fourth side 13d are located at the other clearance side S2, the clearance side S1 can be regarded as the side defined by the first side 11c and the third side 13c, and the clearance side S2 is the side defined by the second side 11d and the fourth side 13d. Since the first side 11c and the second side 11d are both straight strips and are connected perpendicularly, and the third side 13c and the fourth side 13d are both straight strips and are connected perpendicularly, the two clearance sides S1, S2 are also connected perpendicularly. The two adjacent side frames 2 of the electronic device 100 are also generally in a perpendicular relationship, so that by placing the two clearance sides S1, S2 respectively parallel to the two adjacent side frames 2, the space occupied by the antenna assembly 1 in the electronic device 100 can be saved.

[0231] As shown in FIG. 1, Figure 19 The electronic device 100 shown in FIG. 1 includes an antenna assembly 1 which is a cavity antenna T1 with two clearance sides S1, S2. Figure 1 The structure of the antenna assembly 1 shown in FIG. 1 is taken as an example for illustration.

[0232] Please refer to Figure 20 FIG. 2 is a schematic diagram of the return loss of the antenna assembly 1 included in the electronic device 100 in some embodiments of the present application. As shown in FIG. 2, Figure 20 The antenna assembly 1 included in the electronic device 100 can be a cavity antenna T1 with two clearance sides S1, S2. Figure 10The antenna assembly 1 shown is a schematic diagram of a return loss curve obtained by simulation testing.

[0233] in, Figure 20 Return loss curve S11-1 is shown, exemplified by the example of the preset frequency band being the WiFi 2.4G / WiFi 5G band. That is, in some embodiments, the antenna assembly 1 includes a matching unit 18, which, when matched by the matching unit 18, can simultaneously cover both the WiFi 2.4 (resonant frequency approximately 2.4 GHz) and WiFi 5G bands (resonant frequency approximately 5.5 GHz).

[0234] The return loss curve is also the input return loss. The frequency corresponding to the lowest point of the return loss curve is the resonant frequency. The lower the input return loss, the lower the loss at the resonant frequency and the higher the antenna efficiency.

[0235] like Figure 20 As shown, the return loss at the resonant frequency of 2.4 GHz in the WiFi 2.4G band is approximately -14.5 dB, while the return loss at the resonant frequency of 5.5 GHz in the WiFi 5G band is approximately -21 dB. Therefore, when the antenna assembly 1 included in the electronic device 100 operates in the preset frequency band, the return loss is low and the loss is small.

[0236] See also Figure 21 , is a schematic diagram of the radiation efficiency and system total efficiency curve of the antenna assembly 1 included in the electronic device 100 in some embodiments of the present application. Figure 21 The antenna assembly 1 included in the electronic device 100 may also be used as the Figure 10 The antenna assembly 1 shown is a schematic diagram of the radiation efficiency and system total efficiency curves obtained through simulation testing.

[0237] in, Figure 21 The radiation efficiency curve Sr1 and the system total efficiency curve St1 are illustrated, and an example is also given using the preset frequency band being the WiFi2.4G / WiFi 5G frequency band.

[0238] The peak value of the system total efficiency curve in the same frequency band generally corresponds to the trough value of the corresponding input echo curve. Figure 21As shown, the radiation efficiency at the resonant frequency 2.4 GHz of the WiFi 2.4G frequency band is about -3.3 dB, and the total system efficiency is also about -3.3 dB, both the radiation efficiency and the total system efficiency are high, and good antenna efficiency can be achieved. In addition, at the resonant frequency 5.5 GHz of the WiFi 5G frequency band, the radiation efficiency is about -2.9 dB, and the total system efficiency is about -4.9 dB, both the radiation efficiency and the total system efficiency are high.

[0239] Therefore, it can be seen that the antenna assembly 1 of the electronic device 100 of the present application has high efficiency when working in the preset frequency band, and good antenna performance can be achieved.

[0240] Referring to Figure 22 , the antenna pattern of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application when working in the preset frequency band is shown. Among them, Figure 22 , the antenna assembly 1 of the electronic device 100 can be used as the Figure 10 The antenna assembly 1 shown is an example for simulation test.

[0241] Among them, Figure 22 Taking the preset frequency band as the WiFi 2.4G / WiFi 5G frequency band, the antenna pattern A1 of the WiFi 2.4G frequency band and the antenna pattern A2 of the WiFi 5G frequency band are shown.

[0242] From Figure 22 It can be seen that the antenna pattern A1 of the WiFi 2.4G frequency band and the antenna pattern A2 of the WiFi 5G frequency band are both relatively round, the radiation characteristics have no obvious distortion, and the directivity is good.

[0243] In some embodiments, Figure 22 The antenna pattern can be obtained when the display screen of the electronic device 100 is in the upward state. Among them, the place with the deepest color in the antenna pattern is the main radiation direction / beam direction R1. Therefore, in some embodiments, from Figure 22 It can be seen that the main radiation direction R1 of the WiFi 2.4G frequency band and the WiFi 5G frequency band is approximately toward the side of the display screen of the electronic device 100.

[0244] Referring to Figure 23 , the antenna standing wave diagram of the antenna assembly 1 included in the electronic device 100 in some embodiments of the present application is shown. Among them, Figure 23 The antenna assembly 1 included in the electronic device 100 can be used as the Figure 12 The antenna standing wave diagram shown is an example for simulation test of the antenna assembly 1.

[0245] Wherein, the standing wave is also called Voltage Standing Wave Ratio (VSWR), and the frequency corresponding to the trough point of the VSWR is the resonance frequency point.

[0246] Figure 23 Several switchable standing waves Vs1 are shown, wherein, as shown previously Figure 12 The antenna assembly 1 also includes a tuning unit 19, the tuning unit 19 can present corresponding tuning parameter values, and the tuning parameter values presented by the tuning unit 19 are adjustable. According to the different tuning parameter values of the tuning unit 19, the preset frequency bands supported by the cavity antenna T1 under the excitation of the feed signal are different, so that the corresponding standing waves Vs1 are different.

[0247] Wherein, Figure 23 For example, four switchable standing waves Vs1 are shown. Obviously, in some embodiments, the number of different tuning parameter values presented by the tuning unit 19 can be any number as needed, and the number of switchable standing waves Vs1 can also be any number.

[0248] Wherein, in this application, according to the different sizes of the cavity antenna T1, and under the matching adjustment of the matching unit 18 and / or the tuning unit 19, the transceiving of electromagnetic wave signals of multiple frequency bands is supported, or the supported frequency bands are changed. The cavity antenna T1 can also support narrowband antennas such as GPS L1 / L5, and can also work in other cellular frequency bands, such as low frequency B5 / B8, medium frequency B3 / B1, high frequency B40 / B41, etc., and the preset frequency bands can include single frequency, dual frequency, triple frequency, or even more frequency bands, which will not be repeated here.

[0249] Please refer to Figure 24 , which is a schematic diagram of part of the internal structure of the electronic device 100 from the side of the display screen in some embodiments of the present application. Wherein, as Figure 24 The electronic device 100 also includes a display screen 3, wherein the display screen 3 and the side frame 2 have a gap to form a black border area H1, and the projection of the two clearances S1, S2 on the plane where the display screen 3 is located is located in the black border area H1.

[0250] The black border area H1 between the display screen 3 and the side frame 2 is generally filled with glue or other insulating material to seal the edge, so the black border area H1 can be used as a clearance area. By projecting the two clearance sides S1, S2 on the plane of the display screen 3 into the black border area H1, the electromagnetic wave signals radiated by the clearance sides S1, S2 of the cavity antenna T1 can be conducted to the outside of the electronic device 100 through the black border area H1, and normal transmission of electromagnetic wave signals can be achieved, ensuring the antenna performance.

[0251] In some embodiments, since the electromagnetic wave signals radiated by the clearance sides S1, S2 of the cavity antenna T1 are conducted to the outside of the electronic device 100 through the black border area H1, and do 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.

[0252] As mentioned above, the main radiation direction of the preset frequency band, such as the main radiation direction of the WiFi 2.4G frequency band and the WiFi 5G frequency band, is generally towards the side of the display screen 3 of the electronic device 100, so when the projection of the two clearance sides S1, S2 on the plane of the display screen 3 is located in the black border area H1, the electromagnetic wave signals of the preset frequency band radiated in this direction can pass through better, without affecting the antenna radiation performance.

[0253] In some embodiments, the projection of the two clearance sides S1, S2 on the plane of the display screen 3 coincides with the intersection line of the black border area H1 and the edge of the display screen 3.

[0254] The two clearance sides S1 and S2 are substantially perpendicular to the plane in which the display screen 3 is located. The projection of the clearance side S1 on the plane in which the display screen 3 is located is actually a line formed by the projection of the first side edge 11c and the third side edge 13c on the plane in which the display screen 3 is located, that is, a line formed by the projection of the third edge 12b of the first conductive layer 12 and the fifth edge 14b of the second conductive layer 14 on the plane in which the display screen 3 is located. The projection of the clearance side S2 on the plane in which the display screen 3 is located is actually a line formed by the projection of the second side edge 11d and the fourth side edge 13d on the plane in which the display screen 3 is located, that is, a line formed by the projection of the fourth edge 12c of the first conductive layer 12 and the sixth edge 14c of the second conductive layer 14 on the plane in which the display screen 3 is located. By making the projections of the two clearance sides S1 and S2 on the plane in which the display screen 3 is located coincide with the junction lines of the black border region H1 and the edge of the display screen 3, the black border region H1 can be maximized to be utilized by the cavity antenna T1. The black border region H1, which is a clearance region, can be maximized to be utilized, that is, the electromagnetic wave signals radiated from the clearance sides S1 and S2 of the cavity antenna T1 can be conducted to the outside of the electronic device 100 through the entire black border region H1, and the antenna performance can be effectively ensured.

[0255] Obviously, in some embodiments, the portions of the two adjacent side frames 2 of the electronic device 100 that face the two clearance sides S1 and S2 of the cavity antenna T1 can also be partially hollowed out, for example, by being provided with slits, so that the electromagnetic wave signals radiated from the clearance sides S1 and S2 of the cavity antenna T1 can be conducted to the outside of the electronic device 100 through the side frames 2, and the clearance region and the antenna radiation performance can be further improved.

[0256] Please refer to Figure 25 , which is a side view schematic diagram that shows part of the internal structure of the electronic device 100 in some embodiments of the present application. In the figure, Figure 25 , which is a side view schematic diagram that shows part of the internal structure of the electronic device 100 viewed from the long side.

[0257] As Figure 25 shown, the electronic device 100 includes a metal cover plate 4. When the first conductive layer 12 serves as a feed layer and the second conductive layer 14 serves as a ground layer, the second conductive layer 14 is electrically connected to the metal cover plate 4 to be grounded, or the second conductive layer 14 is at least part of the metal cover plate 4.

[0258] That is, in some embodiments, the metal cover plate 4 of the electronic device 100 can be provided with an overall ground potential, the second conductive layer 14 of the antenna assembly 1 can be electrically connected to the metal cover plate 4 to be grounded, or the second conductive layer 14 of the antenna assembly 1 can be directly part of the metal cover plate 4.

[0259] In some embodiments, when the second conductive layer 14 of the antenna assembly 1 is electrically connected to the metal cover plate 4 to be grounded, the surface of the second conductive layer 14 facing away from the second dielectric plate 13 can be in contact with the inner surface of the metal cover plate 4 to be electrically connected. Thus, by two surface contact settings, the combination stability of the antenna assembly 1 and the metal cover plate 4 can be improved, and the thickness of the electronic device 100 can be reduced. In some embodiments, the surface of the second conductive layer 14 facing away from the second dielectric plate 13 can be in contact with the inner surface of the metal cover plate 4 and connected by bonding, welding or the like to further improve the stability of the combination.

[0260] In some embodiments, as shown in Figure 25 In some embodiments, the surface of the first conductive layer 12 facing away from the first dielectric plate 11 can be in contact with the back of the display screen 3. Thus, in some embodiments, the cavity antenna T1 can be defined by the cooperation of the display screen 3 and the metal cover plate 4, and the stability of the structure can be further improved.

[0261] In some embodiments, when the second conductive layer 14 is at least part of the metal cover plate, the first edge 12a of the first conductive layer 12 of the antenna assembly 1 can be connected to the corresponding position of the preset area of the metal cover plate 4 through the conductive connection layer 15, so that the first conductive layer 12, the preset area of the metal cover plate 4 and the conductive connection layer 15 can form a cavity antenna T1 with two clearance sides. When the second conductive layer 14 is at least part of the metal cover plate 4, part of the metal cover plate 4 can be reused as part of the cavity antenna T1, thereby saving costs and further reducing the thickness of the electronic device 100.

[0262] In some embodiments, when the electronic device 100 is a mobile phone, a tablet computer or the like, the metal cover plate can be a metal back cover, and the metal cover plate 4 is a structure integrated with the middle frame function. The metal cover plate 4 is not only used to cover the back of the electronic device 100, but also used to provide support for the display screen 3 and the like, and cooperates with the display screen 3 to form a containing cavity to accommodate various devices of the electronic device 100.

[0263] Please refer to Figure 26Fig. 1 is a side view showing a partial internal structure of an electronic device 100 according to some embodiments of the present application. In some embodiments, the electronic device 100 can include a display screen 3, a main board 5, and an antenna assembly 1. The display screen 3 can be a touch screen, and can include a first conductive layer 11, a second conductive layer 12, and a third conductive layer 13. The first conductive layer 11 can be a transparent conductive layer, and can be used as a touch screen. The second conductive layer 12 can be a metal layer, and can be used as a ground layer. The third conductive layer 13 can be a metal layer, and can be used as a display layer. The main board 5 can include a ground layer 51. The antenna assembly 1 can include a first conductive layer 12, a second conductive layer 14, and a feed source 17. The first conductive layer 12 can be a metal layer, and can be used as a ground layer. The second conductive layer 14 can be a metal layer, and can be used as a ground layer. The feed source 17 can be a feed point F1. Figure 26 Fig. 2 is another side view showing a partial internal structure of the electronic device 100 according to some embodiments of the present application. In some embodiments, the electronic device 100 can include a display screen 3, a main board 5, and an antenna assembly 1. The display screen 3 can be a touch screen, and can include a first conductive layer 11, a second conductive layer 12, and a third conductive layer 13. The first conductive layer 11 can be a transparent conductive layer, and can be used as a touch screen. The second conductive layer 12 can be a metal layer, and can be used as a ground layer. The third conductive layer 13 can be a metal layer, and can be used as a display layer. The main board 5 can include a ground layer 51. The antenna assembly 1 can include a first conductive layer 12, a second conductive layer 14, and a feed source 17. The first conductive layer 12 can be a metal layer, and can be used as a ground layer. The second conductive layer 14 can be a metal layer, and can be used as a ground layer. The feed source 17 can be a feed point F1.

[0264] In some embodiments, the electronic device 100 can further include a main board 5, and the second conductive layer 14 can be grounded by being electrically connected to a ground layer 51 of the main board 5, or the second conductive layer 14 can be at least a part of the ground layer 51.

[0265] In some embodiments, the ground layer 51 of the main board 5 can provide a ground potential, and the second conductive layer 14 of the antenna assembly 1 can be grounded by being electrically connected to the ground layer 51 of the main board 5, or the second conductive layer 14 of the antenna assembly 1 can be directly a part of the ground layer 51 of the main board 5.

[0266] In some embodiments, a preset area of the ground layer 51 of the main board 5 can be exposed towards a side where the display screen 3 is located, for example, by removing a preset area of other layers of the main board 5 located near the side of the ground layer 51 where the display screen 3 is located.

[0267] When the second conductive layer 14 of the antenna assembly 1 is grounded by being electrically connected to the ground layer 51 of the main board 5, the second conductive layer 14 of the antenna assembly 1 / the cavity antenna T1 can be carried on a preset area of the ground layer 51 exposed towards the side where the display screen 3 is located and electrically connected to the ground layer 51 to achieve grounding. When the second conductive layer 14 is at least a part of the ground layer 51, the first edge 12a of the first conductive layer 12 of the antenna assembly 1 can be connected to a corresponding position in the preset area of the ground layer 51 through a conductive connection layer 15, so that the first conductive layer 12, the preset area of the ground layer 51, and the conductive connection layer 15 can form a cavity antenna T1 with two clearance sides.

[0268] In some embodiments, the feed source 17 can be disposed on the main board 5 and connected to the feed point F1 through a corresponding feed connection, which can be a conductive spring, a conductive wire, a FPC (Flexible Printed Circuit), or the like.

[0269] Fig. 3 is a simple structure diagram showing another partial internal structure of the electronic device 100 according to some embodiments of the present application. In some embodiments, the electronic device 100 can include a display screen 3, a main board 5, and an antenna assembly 1. The display screen 3 can be a touch screen, and can include a first conductive layer 11, a second conductive layer 12, and a third conductive layer 13. The first conductive layer 11 can be a transparent conductive layer, and can be used as a touch screen. The second conductive layer 12 can be a metal layer, and can be used as a ground layer. The third conductive layer 13 can be a metal layer, and can be used as a display layer. The main board 5 can include a ground layer 51. The antenna assembly 1 can include a first conductive layer 12, a second conductive layer 14, and a feed source 17. The first conductive layer 12 can be a metal layer, and can be used as a ground layer. The second conductive layer 14 can be a metal layer, and can be used as a ground layer. The feed source 17 can be a feed point F1. Figure 27 Figure 27 ​As shown in some embodiments, the antenna assembly 1 included in the electronic device 100 can also be the aforementioned Figure 17 As shown in the antenna assembly 1, the at least one first connecting side edge 11e and the at least one second connecting side edge 13e are both one and are in the shape of an arc strip. The cavity antenna T1 formed by the first conductive layer 12, the second conductive layer 14, and the conductive connecting layer 15 of the antenna assembly 1 is approximately in the shape of a sector.

[0270] Similarly, the two clearance sides S1 and S2 of the cavity antenna T1 are respectively adjacent to and spaced apart from the two adjacent side frames 2, and the conductive connecting layer 15 is close to the inside of the electronic device 100. Since the conductive connecting layer 15 is approximately in the shape of an arc surface at this time, more avoidance space can be formed to facilitate the placement of other functional devices of the electronic device 100.

[0271] Please refer to Figure 28 As shown in the simple structural schematic diagram of part of the internal structure of the electronic device 100 in some embodiments of the present application, as shown in the figure, Figure 12 As shown in some embodiments, the antenna assembly 1 included in the electronic device 100 can also be the aforementioned Figure 18 As shown in the antenna assembly 1, the at least one first connecting side edge 11e and the at least one second connecting side edge 13e are both one and are in the shape of an arc strip. The cavity antenna T1 formed by the first conductive layer 12, the second conductive layer 14, and the conductive connecting layer 15 of the antenna assembly 1 is approximately in the shape of a sector.

[0272] At this time, the cavity antenna T1 forms a triangular structure, so that more avoidance space can also be formed to facilitate the placement of other functional devices of the electronic device 100.

[0273] In the present application, the shape of the cavity antenna T1 is the shape of the projection along the arrangement direction of the first conductive layer 12 and the second conductive layer 14, that is, along the thickness direction of the first dielectric plate 11 and the like.

[0274] Please refer to Figure 29 As shown in the simple structural schematic diagram of part of the internal structure of the electronic device 100 in some embodiments of the present application, as shown in the figure, Figure 29 As shown in the figure, as described above Figure 19 As shown in the figures, the electronic device 100 includes a plurality of groups of adjacent two side frames 2, wherein, as shown in the figure, Figure 29 As shown in the figure, the antenna assembly 1 can include a plurality of antenna assemblies 1, each of which is arranged at a group of adjacent two side frames 2, and the two clearance sides S1 and S2 of each antenna assembly 1 are respectively adjacent to and spaced apart from the corresponding group of adjacent two side frames 2.

[0275] That is, in some embodiments, the electronic device 100 can include a plurality of the antenna assembly 1 in any of the preceding embodiments. Thus, a plurality of the antenna assembly 1 in the present application, which has a small requirement for a clearance area, can be arranged, and the contradiction between the current requirement for a large number of antennas and the current small clearance area can be greatly alleviated.

[0276] As shown in FIG. 1, the number of groups of the adjacent two side frames 2 in the electronic device 100 is four, and the number of the antenna assembly 1 can be up to four, which can greatly meet the current requirement for antennas of the electronic device 100. Figure 29

[0277] As shown in FIG. 1, the number of groups of the adjacent two side frames 2 in the electronic device 100 is four, and the number of the antenna assembly 1 can be up to four, which can greatly meet the current requirement for antennas of the electronic device 100. Figure 29 As shown in FIG. 1, the number of groups of the adjacent two side frames 2 in the electronic device 100 is four, and the number of the antenna assembly 1 can be up to four, which can greatly meet the current requirement for antennas of the electronic device 100.

[0278] As shown in FIG. 1, the number of groups of the adjacent two side frames 2 in the electronic device 100 is four, and the number of the antenna assembly 1 can be up to four, which can greatly meet the current requirement for antennas of the electronic device 100.

[0279] Figure 1 As shown in FIG. 1, the number of groups of the adjacent two side frames 2 in the electronic device 100 is four, and the number of the antenna assembly 1 can be up to four, which can greatly meet the current requirement for antennas of the electronic device 100. Figure 4 As shown in FIG. 1, the number of groups of the adjacent two side frames 2 in the electronic device 100 is four, and the number of the antenna assembly 1 can be up to four, which can greatly meet the current requirement for antennas of the electronic device 100.

[0280] As shown in FIG. 1, the number of groups of the adjacent two side frames 2 in the electronic device 100 is four, and the number of the antenna assembly 1 can be up to four, which can greatly meet the current requirement for antennas of the electronic device 100.

[0281] Figure 19 As shown in FIG. 1, the number of groups of the adjacent two side frames 2 in the electronic device 100 is four, and the number of the antenna assembly 1 can be up to four, which can greatly meet the current requirement for antennas of the electronic device 100. Figure 29 As shown in FIG. 1, the number of groups of the adjacent two side frames 2 in the electronic device 100 is four, and the number of the antenna assembly 1 can be up to four, which can greatly meet the current requirement for antennas of the electronic device 100.

[0282] As shown in FIG. 1, the number of groups of the adjacent two side frames 2 in the electronic device 100 is four, and the number of the antenna assembly 1 can be up to four, which can greatly meet the current requirement for antennas of the electronic device 100.​​​

[0283] Please refer to Figure 30 , a simple overall schematic diagram of the electronic device 100 in some embodiments of the present application. In some embodiments, as shown in Figure 30 , the electronic device 100 is a foldable electronic device, and at least one of the first body 110 and the second body 120 is provided with a display screen 3, and the two adjacent side frames 2 are any two adjacent side frames 2 on the first body 110 and / or the second body 120 provided with the display screen 3.

[0284] That is, in some embodiments, the electronic device 100 can also be a foldable electronic device, and 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, and the two adjacent side frames 2 are any two adjacent side frames 2 on the first body 110 and / or the second body 120 provided with the display screen 3, so as to form a black border area H1 through the gap between the display screen 3 and the antenna assembly 1. Thus, as described above, the two clearance sides S1, S2 of the antenna assembly 1 are respectively adjacent to and spaced apart from the two adjacent side frames 2, so that the electromagnetic wave signals radiated by the clearance sides S1, S2 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, and normal transmission of electromagnetic wave signals can be achieved, ensuring the antenna performance.

[0285] Among them, as shown in Figure 30 , the electronic device 100 is a notebook computer, the first body 110 is provided with a display screen 3, and the second body 120 is provided with a keyboard 6. Therefore, the two adjacent side frames 2 described above are any two adjacent side frames 2 on the first body 110, as shown in Figure 30 , the antenna assembly 1 can be arranged in the first body 110 and can include at least one arranged at the corresponding group of two adjacent side frames 2.

[0286] Among them, when the electronic device 100 is a notebook computer, the preset frequency band supported by the antenna assembly 1 can be a WIFI frequency band, a Bluetooth frequency band, etc., so as to facilitate WIFI and / or Bluetooth communication.

[0287] Among them, as shown in Figure 30 , the second body 120 is also provided with a touch panel 61 for user touch input.

[0288] In some embodiments, when the electronic device 100 is a notebook computer, the metal cover plate 4 can be a cover plate arranged on a side of the first body 110 opposite the display screen 3.

[0289] Please refer to Figure 31 , which is a simple planar schematic diagram of an electronic device 100 in some embodiments of the present application. As shown in the figure, Figure 31 the electronic device 100 is a foldable electronic device, and the first body 110 and the second body 120 are each provided with a display screen 3.

[0290] At this time, the electronic device 100 can be a foldable mobile phone or the like. Among them, the aforementioned two adjacent side frames 2 are any two adjacent side frames 2 on the first body 110 and the second body 120, the antenna assembly 1 can be arranged in the first body 110 and / or the second body 120, and can include at least one, arranged at the corresponding group of two adjacent side frames 2.

[0291] Thus, for the foldable electronic device with the display screen 3 arranged on the first body 110 and the second body 120, the antenna assembly 1 of the present application can be arranged in more positions, and can greatly meet the current demand for the number of antennas in a small clearance environment.

[0292] Among them, as shown in the figure, Figure 31 when the electronic device 100 is a foldable mobile phone or the like, the electronic device 100 further includes a rotating member 130, and the first body 110 and the second body 120 are rotatably connected through the rotating member 130. Among them, the rotating member 130 can be a rotating shaft or a hinge or any structure that can rotatably connect the first body 110 and the second body 120.

[0293] Obviously, when the electronic device 100 is a notebook computer, the first body 110 is provided with a display screen 3, and the second body 120 is provided with a keyboard 6, the first body 110 and the second body 120 are also rotatably connected through the corresponding rotating member, but the aforementioned Figure 30 is not shown.

[0294] In some embodiments, when the electronic device 100 is a foldable electronic device provided with a display screen 3 on both the first body 110 and the second body 120, and the antenna assembly 1 includes multiple antennas, the two antenna assemblies 1 respectively arranged at the corresponding positions of the first body 110 and the second body 120 support different frequency bands, thereby effectively avoiding interference with each other when the electronic device 100 is in a folded state. The corresponding positions of the first body 110 and the second body 120 can refer to positions that project onto each other when the electronic device 100 is in a folded state.

[0295] In the present application, the electronic device 100 can be any electronic device with an antenna, such as a mobile phone, a tablet computer, a notebook computer, etc.

[0296] The antenna assembly and the electronic device 100 of the present application can radiate through the clearance side by forming the above-mentioned cavity antenna T1, and only need a certain clearance near the clearance side to achieve good antenna radiation performance, thereby having a small demand for the clearance area and being applicable in an environment with a small clearance area. In addition, in the prior art, a general cavity antenna realizes clearance through an opening or the like on one side, i.e., only one clearance side, and the clearance side is rectangular, with the maximum point of the electric field located at the middle point of the long side of the clearance side. In order to meet the minimum boundary condition of electromagnetic oscillation, the long side of the clearance side needs to be λ / 2, so that the distance from the maximum point of the electric field to the end of the long side of the clearance side, i.e., to the conductive side wall, is λ / 4 to support the resonance of the corresponding frequency band. Therefore, the size of the long side of the cavity antenna T1 in the prior art, i.e., the long side on the clearance side, needs to be at least λ / 2. However, the cavity antenna T1 of the present application has two clearance sides S1 and S2, and the first side edge 11c on the clearance side S1 is connected to the second side edge 11d on the clearance side S2, and the third side edge 13c on the clearance side S1 is connected to the fourth side edge 13d on the clearance side S2, which is equivalent to the connection of the two clearance sides S1 and S2, such as an angle connection, so that the maximum point of the electric field is approximately the point of intersection of the two clearance sides S1 and S2, and the required length of each clearance side is less than λ / 2, thereby effectively reducing the overall size of the cavity antenna. In addition, in the present application, the cavity antenna T1 is formed by providing a conductive layer on a dielectric plate, which can improve the stability of the structure through the bearing action of the dielectric plate, and compared with the conductive side wall of the cavity antenna formed by a spring or the like in the prior art and further locked by a screw, the performance of the cavity antenna can be effectively improved, and the use of screws can be avoided to reduce the overall volume.

[0297] Among them, various embodiments of the application or each have different focuses, and some embodiments are not described in detail. Please refer to the relevant content of other embodiments.

[0298] The above description is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An antenna assembly, characterized in that: The antenna assembly comprises: a first dielectric plate, the first dielectric plate comprising a first surface and a second surface opposite to each other, and further comprising a first side edge, a second side edge, and at least one first connecting side edge connected between the first side edge and the second side edge, wherein one end of the first side edge is connected to one end of the second side edge, and the other end of the first side edge is connected to the other end of the second side edge via the at least one first connecting side edge; a first conductive layer disposed on the first surface, the first conductive layer comprising a first edge, the first edge being an edge of the first conductive layer corresponding to the at least one first connecting side edge; a second dielectric plate disposed opposite to the first dielectric plate, the second dielectric plate comprising a third surface and a fourth surface facing each other, and further comprising a third side, a fourth side, and at least one second connecting side connected between the third side and the fourth side, wherein the third surface is farther from the first dielectric plate than the fourth surface, and the first surface of the first dielectric plate is farther from the second dielectric plate than the second surface, wherein one end of the third side is connected to one end of the fourth side, and the other end of the third side is connected to the other end of the fourth side via the at least one second connecting side; a second conductive layer disposed on the third surface, the second conductive layer comprising a second edge, the second edge being an edge of the second conductive layer corresponding to the at least one second connecting side edge; a conductive connecting layer connected between a first edge of the first conductive layer and a second edge of the second conductive layer, and provided at least on the first connecting side and the second connecting side; Among them, the first side is arranged opposite to the third side, the second side is arranged opposite to the fourth side, the first conductive layer, the second conductive layer and the conductive connection layer form a cavity antenna having two clear sides for electromagnetic wave signals to pass through, the first side and the third side are located on one of the clear sides, and the second side and the fourth side are located on the other clear side.

2. The antenna assembly according to claim 1, wherein: The first conductive layer serves as a feeding layer for accessing a feeding 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 feeding signal, wherein the equivalent electrical lengths of the third edge and the fourth edge of the first conductive layer are both equal to λ / 4, wherein λ is the wavelength corresponding to the electromagnetic wave signal in the preset frequency band, wherein the third edge of the first conductive layer is the edge corresponding to the first side, and the fourth edge of the first conductive layer is the edge corresponding to the second side.

3. The antenna assembly according to claim 1, wherein: The first dielectric plate and the second dielectric plate are spaced apart from each other, or the first dielectric plate and the second dielectric plate are attached to each other, or the first dielectric plate and the second dielectric plate are an integrated dielectric plate.

4. The antenna assembly according to claim 3, wherein: The antenna assembly also includes a support member, which is arranged between the first dielectric plate and the second dielectric plate. The first dielectric plate and the second dielectric plate are spaced apart by the support member, and the conductive connection layer is also partially arranged on at least part of the side of the support member.

5. The antenna assembly according to claim 4, wherein: The support member includes a support frame, the support frame includes at least one support frame bar, the at least one support frame bar includes at least one target support frame bar corresponding to the at least one first connection side and the at least one second connection side, and the conductive connection layer is also partially arranged on the side of the at least one target support frame bar.

6. The antenna assembly according to claim 5, wherein: The support frame is a closed annular frame, and the at least one support frame bar includes multiple support frame bars, and the at least one support frame bar also includes support frame bars corresponding to the first side and the third side and support frame bars corresponding to the second side and the fourth side. Multiple support frame bars are connected to form the closed annular frame.

7. The antenna assembly according to claim 4, wherein: The support member includes a support plate, the support plate includes at least one target side edge, the at least one target side edge corresponds to the at least one first connection side edge and the at least one second connection side edge, and the conductive connection layer is also partially arranged on the at least one target side edge of the support plate.

8. The antenna assembly according to claim 4, wherein: A matching device is also provided on the support member.

9. The antenna assembly according to claim 3, wherein: The first dielectric plate and the second dielectric plate are bonded together, the second surface of the first dielectric plate and the fourth surface of the second dielectric plate are opposite and bonded together, and the conductive connecting layer is connected between the first edge of the first conductive layer and the second edge of the second conductive layer, and is arranged on the first connecting side and the second connecting side.

10. The antenna assembly according to claim 3, wherein: The first dielectric plate and the second dielectric plate are an integrated dielectric plate, the first surface of the first dielectric plate and the third surface of the second dielectric plate are two opposite surfaces of the integrated dielectric plate, and the conductive connecting layer is connected between the first edge of the first conductive layer and the second edge of the second conductive layer, and is arranged on the first connecting side and the second connecting side.

11. The antenna assembly according to claim 10, wherein: The integrated dielectric plate is a circuit board including a multi-layer structure, the first dielectric plate and the second dielectric plate are two-layer structures in the integrated dielectric plate, the integrated dielectric plate also includes a functional plate arranged between the first dielectric plate and the second dielectric plate, and the carrier plate is used to install matching components.

12. The antenna assembly according to claim 1, wherein: The first conductive layer is provided with a feeding point and serves as a feeding layer, and the second conductive layer is used to be electrically connected to the ground and serves as a grounding layer. At least the first conductive layer and the first dielectric plate are provided with a gap to form an accommodating space, and the accommodating space is used to accommodate a matching device, and the matching device is installed on the first dielectric plate and / or the second dielectric plate.

13. The antenna assembly according to claim 1, wherein: The antenna assembly further includes a feed source coupled to the first conductive layer for providing the feed signal.

14. The antenna assembly according to claim 13, wherein: The antenna assembly further includes a matching unit coupled between the first conductive layer, the second conductive layer and the feed source for achieving impedance matching adjustment.

15. The antenna assembly according to claim 14, wherein: The first conductive layer is provided with a feeding point, the second conductive layer is used to be electrically connected to the ground and serves as a grounding layer, and the matching unit is connected between the feeding point, the grounding layer and the feed source.

16. The antenna assembly according to claim 14, wherein: The matching unit is an adjustable matching unit, and a matching parameter value of the matching unit is adjustable, so that the preset frequency band supported by the cavity antenna under the excitation of the feeding signal is adjustable.

17. The antenna assembly according to claim 13, wherein: The antenna assembly also includes a feed coupling branch, which is spaced apart from and parallel to the third edge and / or fourth edge of the first conductive layer and coupled to the first conductive layer, wherein the third edge of the first conductive layer is the edge corresponding to the first side, and the fourth edge of the first conductive layer is the edge corresponding to the second side; the feed source is electrically connected to the feed coupling branch, thereby coupling with the first conductive layer through the feed coupling branch, and the feed source couples and excites the cavity antenna through the feed coupling branch, and the cavity antenna supports the reception of electromagnetic wave signals in the preset frequency band under the coupling excitation of the feed source.

18. The antenna assembly according to claim 17, wherein: The feed coupling branch is in a straight strip shape, spaced apart from and parallel to the first side or the second side of the first conductive layer, and coupled to the first conductive layer.

19. The antenna assembly according to claim 17, wherein: The feed coupling branch is bent and includes a first feed coupling branch and a second feed coupling branch. The first feed coupling branch is spaced apart from and parallel to the first side of the first conductive layer, and the second feed coupling branch is spaced apart from and parallel to the second side of the first conductive layer.

20. The antenna assembly according to claim 1, wherein The first side includes a first end and a second end relative to each other, the second side includes a third end and a fourth end relative to each other, the first end of the first side is connected to the third end of the second side, and the at least one first connecting side is connected between the second end of the first side and the fourth end of the second side; the third side includes a fifth end and a sixth end relative to each other, the fourth side includes a seventh end and an eighth end relative to each other, the fifth end of the third side is connected to the seventh end of the fourth side, and the at least one second connecting side is connected between the sixth end of the third side and the eighth end of the fourth side.

21. The antenna assembly according to claim 20, wherein: Projections of the first side, the second side, and the at least one first connecting side of the first dielectric plate on the second dielectric plate respectively coincide with the third side, the fourth side, and the at least one second connecting side.

22. The antenna assembly according to claim 1, wherein The first side and the second side are both straight bars and vertically connected, and the third side and the fourth side are both straight bars and vertically connected; the number of the at least one first connected side is at least one, and each first connected side is straight, curved or irregular in shape; the number of the at least one second connected side is at least one, and each second connected side is straight, curved or irregular in shape.

23. An electronic device, characterized in that: The electronic device comprises the antenna assembly according to any one of claims 1 to 22.

24. The electronic device according to claim 23, wherein: The electronic device includes two adjacent side frames, and the two clearance side surfaces are respectively adjacent to and spaced apart from the two adjacent side frames.

25. The electronic device according to claim 24, characterized in that The electronic device further includes a display screen, wherein a gap is provided between the display screen and the side frame to form a black border area, and the projections of the two clear side surfaces on the plane where the display screen is located are located within the black border area.

26. The electronic device according to claim 23, wherein: The electronic device also includes a metal cover. When the first conductive layer serves as a feed layer and the second conductive layer is used for grounding as a grounding layer, the second conductive layer is electrically connected to the metal cover and grounded, or the second conductive layer is at least a partial area in the metal cover.

27. The electronic device according to claim 23, wherein: The electronic device includes multiple groups of adjacent side frames, and the antenna components include multiple antenna components, each antenna component is arranged at a group of two adjacent side frames, and the two clear side surfaces of each antenna component are respectively adjacent to and spaced apart from the corresponding group of two adjacent side frames.

28. The electronic device according to any one of claims 23 to 27, characterized in that: The electronic device is a tablet-type electronic device, and the two adjacent side frames are any two adjacent side frames of the electronic device.

29. The electronic device according to any one of claims 23 to 27, characterized in that: The electronic device is a foldable electronic device, which includes a first body and a second body, at least one of the first body and the second body is provided with a display screen, and the two adjacent side frames are any two adjacent side frames on the first body and / or the second body on which the display screen is provided.

30. The electronic device according to claim 29, wherein The electronic device is a notebook computer, the first body is provided with a display screen, the second body is provided with a keyboard, and the two adjacent side frames are any two adjacent side frames on the second body.

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