Antenna assembly and electronic equipment

Abstract

The embodiment of the invention discloses an antenna assembly and electronic equipment, and a conductive module is arranged in an accommodating area, so that the conductive module is protected and fixed by using a metal shell. Therefore, the connecting arm is connected with the grounding part through the metal shell, so that the conductive structure and the metal shell form a first electric path. The first radiation arm and the second radiation arm respectively form a low-frequency radiation unit and a high-frequency radiation unit with the metal shell so as to transmit and receive electromagnetic signals by using the metal shell. Therefore, the metal shell is prevented from being provided with a metal breakpoint, and the mechanical strength of the metal shell and the signal gain of the antenna assembly are improved. And meanwhile, the manufacturing cost of the metal shell is reduced. And on the other hand, the impedance of the high-frequency radiation unit is improved by utilizing the coupling gap between the grounding part and the second radiation arm, so that when the antenna assembly is in a high-frequency working state, the antenna assembly still has a relatively good impedance characteristic, and the working bandwidth of the antenna assembly is improved.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an antenna assembly and electronic equipment. Background Art

[0002] Metal breakpoints on the housing prevent coupling between the antenna and the housing, preventing the housing from affecting the antenna's transceiver performance. However, these breakpoints also increase manufacturing costs and affect the housing's structural strength. Furthermore, when the antenna operates over a wide frequency band, higher-frequency electromagnetic signals can affect the antenna's impedance characteristics, hindering its operation at high frequencies. Improving the antenna's operating bandwidth and reducing the housing's impact on the antenna's transceiver performance have become challenges. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide an antenna assembly and electronic device that, for high-frequency electromagnetic signals, achieves transmission and reception of high-frequency electromagnetic signals by increasing the impedance of the high-frequency radiating element. Furthermore, the low-frequency radiating element and the high-frequency radiating element can share a first electrical path, allowing high-frequency or low-frequency electromagnetic signals to be radiated outward through the metal shell.

[0004] According to a first aspect of an embodiment of the present invention, there is provided an antenna assembly, the antenna assembly comprising:

[0005] a metal shell having a receiving area; and

[0006] a conductive module, disposed in the accommodating area and comprising a conductive structure, the conductive structure comprising a radiating portion and a grounding portion, the radiating portion comprising a first radiating arm, a second radiating arm, and a connecting arm, wherein ends of the first radiating arm and the second radiating arm are electrically connected to one end of the connecting arm, the other end of the connecting arm is connected to the metal shell, and the connecting arm, the metal shell, and the grounding portion form a first electrical path;

[0007] The first radiating arm and the first electrical path are coupled to form a low-frequency radiating unit, a coupling gap is formed between the second radiating arm and the ground portion, and the second radiating arm and the first electrical path form a high-frequency radiating unit, wherein the impedance of the high-frequency radiating unit is greater than that of the low-frequency radiating unit.

[0008] Furthermore, the ground portion is adjacent to the second radiation arm and away from the first radiation arm;

[0009] The grounding portion includes a first connecting area and a grounding area. The grounding area is located between the coupling gap and the first connecting area. The first connecting area is connected to the metal shell.

[0010] Furthermore, the metal shell includes a first shell portion and a second shell portion, the first shell portion and the second shell portion are buckled together to form the accommodating area, and the first shell portion includes a frame;

[0011] The conductive module further includes a substrate, and at least a portion of the conductive structure is disposed on the substrate. The substrate is fixedly connected to the first shell portion, and the first connection area abuts against the frame.

[0012] Furthermore, the frame has a positioning groove, and the positioning groove faces the inner side of the first shell portion;

[0013] The base plate includes a positioning protrusion, which is protruding from the edge of the base plate. The first connection area is located on the positioning protrusion, which is inserted into the positioning groove. The first connection area abuts against the inner wall of the positioning groove.

[0014] Furthermore, the connecting arm extends in a direction away from the ground portion;

[0015] One end of the second radiating arm has a feeding area, the other end of the second radiating arm extends in a direction away from the first radiating arm, and the grounding portion is located on a side of the second radiating arm away from the connecting arm.

[0016] Furthermore, the conductive structure includes a conductive pattern and the connecting arm, the conductive pattern includes the ground portion, the first radiating arm, the second radiating arm, and a second connecting area, the first radiating arm and the second radiating arm extend from the second connecting area to both sides, and the connecting arm is a conductive foil;

[0017] The conductive module further includes a substrate, the conductive pattern is arranged on the substrate, one end of the conductive foil is attached to the second connection area, and the other end is attached to the metal shell.

[0018] Furthermore, the metal shell includes a first shell portion and a second shell portion, the first shell portion and the second shell portion are buckled together to form the accommodating area, the first shell portion has a mounting surface, and the mounting surface has a mounting groove facing the second shell portion;

[0019] The conductive module is disposed in the mounting groove, and the conductive foil extends from the second connection area to the mounting surface and is electrically connected to the mounting surface.

[0020] Furthermore, the conductive pattern also includes a third connection area, which is located on a side of the first radiation arm close to the mounting surface. The conductive foil is electrically connected to the third connection area through the mounting surface to form a second electrical path, and the first radiation arm is coupled to the second electrical path.

[0021] Furthermore, the grounding portion has a grounding area;

[0022] The antenna assembly further includes a coaxial line having a connection end, the connection end including an inner conductor and an outer conductor;

[0023] The connecting end is bent from the ground portion toward the second radiation arm, the outer conductor is connected to the ground region, and the inner conductor is connected to the feeding region.

[0024] In a second aspect, an embodiment of the present invention further provides an electronic device, comprising:

[0025] According to the antenna assembly described in the first aspect above.

[0026] The antenna assembly and electronic device in this embodiment arrange the conductive module in the accommodating area, so that the conductive module is protected and fixed by the metal shell. As a result, the connecting arm is connected to the ground portion through the metal shell, so that the conductive structure and the metal shell form a first electrical path. The first radiation arm and the second radiation arm respectively form a low-frequency radiation unit and a high-frequency radiation unit with the metal shell to use the metal shell to transmit and receive electromagnetic signals. Thus, the opening of metal breakpoints on the metal shell is avoided, the mechanical strength of the metal shell and the signal gain of the antenna assembly are improved. At the same time, the manufacturing cost of the metal shell is reduced. On the other hand, the coupling gap between the ground portion and the second radiation arm is used to increase the impedance of the high-frequency radiation unit, so that when the antenna assembly is in a high-frequency working state, the antenna assembly still has good impedance characteristics and the working bandwidth of the antenna assembly is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0028] Figure 1 is a structural diagram of an antenna assembly according to an embodiment of the present invention;

[0029] Figure 2 is a structural schematic diagram of the conductive module and the first shell portion according to an embodiment of the present invention;

[0030] Figure 3 is an exploded schematic diagram of a conductive module according to an embodiment of the present invention;

[0031] Figure 4 is a schematic structural diagram of the first shell portion of an embodiment of the present invention;

[0032] Figure 5 is a schematic structural diagram of a conductive structure according to an embodiment of the present invention;

[0033] Figure 6 is a schematic diagram of current flow on one side of an antenna assembly according to an embodiment of the present invention;

[0034] Figure 7 is a schematic diagram of current flow on the other side of the antenna assembly according to an embodiment of the present invention;

[0035] Figure 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;

[0036] Figure 9 is an exploded schematic diagram of an electronic device according to an embodiment of the present invention;

[0037] Figure 10 4 is a schematic diagram of return loss simulation of the antenna assembly according to an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1- conductive module;

[0040] 11- conductive structure;

[0041] 12-base plate; 121-positioning protrusion;

[0042] 13-coupling gap; 131-first section; 132-second section; 133-third section;

[0043] 14- conductive pattern;

[0044] 15- second connection area;

[0045] 16-third connection area;

[0046] 2-Metal shell;

[0047] 21- Accommodation area;

[0048] 22 - first shell; 221 - frame; 222 - positioning groove; 223 - mounting surface; 224 - mounting groove; 225 - first side panel;

[0049] 23-second shell;

[0050] 3-Radiation part;

[0051] 31-first radiating arm; 311-first extended branch; 312-second extended branch; 313-third extended branch;

[0052] 32-second radiating arm; 321-feeding area;

[0053] 33-connecting arm;

[0054] 4- grounding part;

[0055] 41-first connection area; 42-connection area;

[0056] 51- low frequency radiation unit; 52- high frequency radiation unit;

[0057] 6-coaxial line;

[0058] 61-connection end; 62-inner conductor; 63-outer conductor. DETAILED DESCRIPTION

[0059] The present invention is described below based on the following embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, certain specific details are described in detail. Those skilled in the art can fully understand the present invention without these details. To avoid obscuring the essence of the present invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0060] Furthermore, persons of ordinary skill in the art will appreciate that the figures provided herein are for illustration purposes only and are not necessarily drawn to scale.

[0061] Unless the context clearly requires otherwise, words like “include”, “comprising” and the like throughout this application should be interpreted as including rather than exclusive or exhaustive; that is, as meaning “including but not limited to”.

[0062] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0063] Unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0064] For ease of explanation, spatially relative terms such as "in," "out," "under," "below," "lower," "above," "upper," and the like are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as being "under" or "beneath" another element or feature would then be positioned "above" the other element or feature. Thus, the example term "under" can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0065] Figure 1 Schematic diagram of the structure of the antenna assembly of this embodiment. Figure 1 FIG. 4 shows a partial area of ​​the metal shell 2 of the antenna assembly. Figure 2 2 is a schematic structural diagram of the conductive module 1 and the first shell 22 of this embodiment. Figure 2 The enlarged view in FIG. 1 shows an enlarged schematic diagram of the connection end 61 of the coaxial line 6 .

[0066] In some embodiments, as Figure 1-Figure 2 As shown, the antenna assembly in this embodiment includes a conductive module 1 and a metal shell 2. The metal shell 2 is provided with a receiving area 21. This receiving area 21 is used to accommodate the conductive module 1. The conductive module 1 includes a conductive structure 11. Thus, the metal shell 2 protects the conductive module 1. Furthermore, the metal shell 2 is also conductive, making it part of the electrical path.

[0067] Figure 3 FIG. 1 is an exploded schematic diagram of the conductive module 1 of this embodiment. Figure 4 2 is a schematic structural diagram of the first shell portion 22 of this embodiment. Figure 5 1 is a schematic structural diagram of the conductive structure 11 of this embodiment.

[0068] Figure 5 The outline of the conductive pattern 14 is shown by a thick solid line, and the outline of the connecting arm 33 is shown by a dot-dash line.

[0069] In some embodiments, as Figure 3As shown, the conductive structure 11 includes a radiating portion 3 and a grounding portion 4 spaced apart from each other. The radiating portion 3 includes a first radiating arm 31, a second radiating arm 32, and a connecting arm 33. The ends of the first radiating arm 31 and the second radiating arm 32 on opposite sides are electrically connected to one end of the connecting arm 33. The other end of the connecting arm 33 is connected to the metal shell 2. The connecting arm 33 forms a first electrical path with the metal shell 2 and the grounding portion 4. That is, the connecting arm 33 is spaced apart from the grounding portion 4 and is electrically connected to the grounding portion 4 through the metal shell 2.

[0070] Optionally, the first radiating arm 31 and the second radiating arm 32 can be equivalent to two microstrip antennas, and the lengths of the first radiating arm 31 and the second radiating arm 32 in the extending direction are related to the operating frequency band. For example, the lengths of the first radiating arm 31 and the second radiating arm 32 can be configured to be one-quarter or one-half the wavelength of the operating frequency band.

[0071] Figure 6 and Figure 7 FIG. 1 is a schematic diagram of the current flow of the antenna assembly of this embodiment. The arrows in the figure show the direction of the current flow. Figure 6 and Figure 7 The arrow a1 shows the current flow direction of the first electrical path, and the arrow a2 shows the current flow direction of the second electrical path. Figure 6 The approximate regional distribution of the low-frequency radiation unit 51 and the high-frequency radiation unit 52 is shown in FIG.

[0072] Further reference Figure 6-Figure 7 As shown, the first radiation arm 31 is coupled with the first electrical path to form a low-frequency radiation unit 51. A coupling gap 13 is formed between the second radiation arm 32 and the ground portion 4 (as shown in FIG. Figure 5 As shown in FIG, the second radiating arm 32 and the first electrical path form a high-frequency radiating unit 52. That is, the operating frequency of the high-frequency radiating unit 52 is higher than that of the low-frequency radiating unit 51.

[0073] Specifically, a closed or substantially closed metal cavity is formed on the inner side of the metal shell 2. Part of the metal cavity is used to form an accommodating area 21. The accommodating area 21 is located at the edge of the metal cavity, and the metal shell 2 does not have a metal breakpoint at the accommodating area 21. The electromagnetic signals generated by the first radiating arm 31 and the second radiating arm 32 in this embodiment are coupled with the metal shell 2, so that the conductive structure 11 can radiate electromagnetic signals to the outside through the metal shell 2, thereby preventing the electromagnetic signals excited by the conductive module 1 from being shielded by the metal shell 2, thereby affecting the transceiver performance of the antenna assembly. At the same time, the antenna assembly can operate at a lower operating frequency band.

[0074] In addition, the conductive structure 11 in this embodiment is configured so that the impedance of the high-frequency radiation unit 52 is greater than the impedance of the low-frequency radiation unit 51 .

[0075] Furthermore, the antenna assembly also includes a radio frequency circuit. The radio frequency circuit is electrically connected to the conductive structure 11 to feed electromagnetic signals to or receive electromagnetic signals from the conductive structure 11. When the operating frequency of the antenna assembly changes from a low frequency band to a high frequency band, the increase in frequency can cause the impedance of the radio frequency circuit to increase. In this form, the impedance of the high-frequency radiation unit 52 is correspondingly increased, so that the high-frequency radiation unit 52 can match the impedance of the radio frequency circuit in a high-frequency state. The impedance characteristics between the high-frequency radiation unit 52 and the radio frequency circuit are optimized, and the matching network of the radio frequency circuit itself is simplified.

[0076] It is easy to understand that the low-frequency radiating unit 51 in this embodiment is used to radiate low-frequency electromagnetic signals, and the high-frequency radiating unit 52 is used to radiate high-frequency electromagnetic signals. The high-frequency radiating unit 52 can be equivalent to a high-impedance antenna. The high-frequency radiating unit 52 has an impedance greater than that of the low-frequency radiating unit 51. To increase the impedance of the high-frequency radiating unit 52, in this embodiment, the second radiating arm 32 is configured closer to the ground portion 4 relative to the first radiating arm 31. The ground portion 4 and the second radiating arm 32 are also arranged adjacent to each other to form a coupling gap 13. Therefore, those skilled in the art can further adjust the impedance characteristics of the high-frequency radiating unit 52 by changing the width or length of the coupling gap 13.

[0077] Preferably, the coupling slot 13 is arranged to be bent. Figure 5 A specific bending form is shown in the figure. The coupling slot 13 in the figure includes a first section 131, a second section 132 and a third section 133 in the extension direction, and the first section 131, the second section 132 and the third section 133 all extend in a straight line. The second section 132 is connected between the first section 131 and the third section 133, and the second section 132 is perpendicular to the first section 131 and the third section 133. The extension direction of the second section 132 is parallel to the extension direction of the connecting arm 33. As a result, the length of the coupling slot 13 is increased within a limited space, so that the current path at the edge of the coupling slot 13 is increased, and the impedance of the high-frequency radiation unit 52 is improved.

[0078] Optionally, the impedance of the low-frequency radiating unit 51 is configured to be 50Ω. The impedance of the high-frequency radiating unit 52 is configured to be greater than 50Ω. In this embodiment, the impedance of the high-frequency radiating unit 52 is affected by factors such as the length of the second radiating arm 32, the length of the ground portion 4, and the operating frequency, causing the impedance value of the high-frequency radiating unit 52 to vary. Those skilled in the art can measure or adjust the impedance based on the above conditions.

[0079] Specifically, the impedance of the high-frequency radiation unit 52 may be 75Ω to 150Ω. For example, the impedance of the high-frequency radiation unit 52 may be 100Ω. This improves radiation efficiency and suppresses coupling between the low-frequency radiation unit 51 and the high-frequency radiation unit 52.

[0080] In summary, the antenna assembly in this embodiment disposes the conductive module 1 in the accommodation area 21, thereby utilizing the metal shell 2 to protect and secure the conductive module 1. Thus, the connecting arm 33 is connected to the ground portion 4 through the metal shell 2, so that the conductive structure 11 and the metal shell 2 form a first electrical path. The first radiating arm 31 and the second radiating arm 32 respectively form a low-frequency radiating unit 51 and a high-frequency radiating unit 52 with the metal shell 2, thereby utilizing the metal shell 2 to transmit and receive electromagnetic signals. This avoids the need for metal breakpoints on the metal shell 2, thereby improving the mechanical strength of the metal shell 2 and the signal gain of the antenna assembly. At the same time, the manufacturing cost of the metal shell 2 is reduced. Furthermore, the coupling gap 13 between the ground portion 4 and the second radiating arm 32 is utilized to increase the impedance of the high-frequency radiating unit 52, ensuring that the antenna assembly maintains good impedance characteristics when operating at high frequencies, and increasing the operating bandwidth of the antenna assembly.

[0081] In some embodiments, as Figure 5 As shown, the ground portion 4 is adjacent to the second radiating arm 32 and away from the first radiating arm 31. The ground portion 4 has a first connection region 41 and a ground region 42. The ground region 42 is located between the coupling slot 13 and the first connection region 41. The first connection region 41 is connected to the metal shell 2.

[0082] Specifically, the feed region 321 and the grounding region 42 are located on either side of the coupling slot 13. In this embodiment, the current on the metal shell 2 can return from the first connection region 41 to the ground portion 4 and flow out through the grounding region 42. As a result, a high potential difference is formed on both sides of the coupling slot 13, causing the coupling slot 13 to form an equivalent capacitor, thereby increasing the impedance of the high-frequency radiating element 52 relative to the low-frequency radiating element 51.

[0083] In some embodiments, as Figure 1-Figure 2 As shown, the metal shell 2 includes a first shell portion 22 and a second shell portion 23. The first shell portion 22 and the second shell portion 23 are buckled together to form a receiving area 21. The first shell portion 22 includes a frame 221. Figure 3 As shown, the conductive module 1 further includes a substrate 12, on which at least a portion of the conductive structure 11 is disposed. The substrate 12 is fixedly connected to the first shell portion 22, and the first connection area 41 abuts against the frame 221. In this embodiment, the substrate 12 is used to support the conductive structure 11 and achieve connection between the conductive structure 11 and the metal shell 2.

[0084] Specifically, in this embodiment, the frame 221 is L-shaped and surrounds one side of the conductive structure 11. This facilitates the connection between the metal shell 2 and the conductive structure 11. The operator can first install the conductive module 1 on the first shell 22, and then cover the second shell 23 on the first shell 22.

[0085] In some embodiments, as Figure 4As shown, the frame 221 has a positioning groove 222, and the positioning groove 222 faces the inner side of the first shell 22. Figure 3 As shown, the base plate 12 includes a positioning protrusion 121. The positioning protrusion 121 is protruding from the edge of the base plate 12. The first connection area 41 is located on the positioning protrusion 121. The positioning protrusion 121 is inserted into the positioning groove 222, and the first connection area 41 abuts the inner wall of the positioning groove 222. In this embodiment, the positioning groove 222 cooperates with the positioning protrusion 121 to achieve mutual positioning between the conductive module 1 and the metal shell 2, and to achieve electrical connection between the first connection area 41 and the frame 221.

[0086] In some embodiments, as Figure 2-Figure 3 As shown, the connecting arm 33 extends in a direction away from the ground portion 4. Figure 5 As shown, one end of the second radiating arm 32 has a feeding region 321, and the other end of the second radiating arm 32 extends away from the first radiating arm 31. The ground portion 4 is located on a side of the second radiating arm 32 away from the connecting arm 33. In this embodiment, the connecting arm 33 and the ground portion 4 increase the distance of current flowing in the first electrical path, ensuring that the metal shell 2 has sufficient area to participate in the reception or transmission of electromagnetic signals.

[0087] In some embodiments, as Figure 3-Figure 5 As shown, the conductive structure 11 includes a conductive pattern 14 and a connecting arm 33. The conductive pattern 14 includes a ground portion 4, a first radiating arm 31, a second radiating arm 32, and a second connecting region 15. The first and second radiating arms 31, 32 extend from the second connecting region 15 to either side, and the connecting arm 33 is a conductive foil. The conductive module 1 also includes a substrate 12. The conductive pattern 14 is disposed on the substrate 12. One end of the conductive foil is attached to the second connecting region 15, and the other end is attached to the metal shell 2.

[0088] Specifically, the substrate 12 in this embodiment may be a circuit board, for example, made of glass fiber reinforced epoxy resin (FR-4). The first shell 22 includes a frame 221 and a first side panel 225. The edge of the first side panel 225 is connected to the frame 221, and the first side panel 225 is located on the side of the substrate 12 facing away from the conductive pattern 14. The substrate 12 located between the conductive pattern 14 and the first side panel 225 can adjust the performance of the antenna assembly and expand the antenna bandwidth.

[0089] In some embodiments, as Figure 1 and Figure 4 As shown, the metal shell 2 includes a first shell portion 22 and a second shell portion 23. The first shell portion 22 and the second shell portion 23 are buckled together to form a receiving area 21. The first shell portion 22 has a mounting surface 223. The mounting surface 223 has a mounting groove 224 facing the second shell portion 23. Figure 2As shown, the conductive module 1 is disposed in the mounting groove 224 , and the conductive foil extends from the second connection area 15 to the mounting surface 223 and is electrically connected to the mounting surface 223 .

[0090] Specifically, the mounting surface 223 is protruded from the side of the first side panel 225 facing the accommodating area 21. The mounting groove 224 is located between the mounting surface 223 and the frame 221. When one end of the connecting arm 33 overlaps the mounting surface 223, the connecting arm 33 can be electrically connected to the first side panel 225.

[0091] Preferably, the conductive foil can be configured as copper foil. One end of the connecting arm 33 is welded to the second connecting region 15, and the other end is attached to the first shell 22. After attachment, the conductive foil will bend in some areas to compensate for the height difference between the substrate 12 and the mounting surface 223. Simultaneously, the conductive foil provides electrical connection between the substrate 12 and the conductive pattern 14 and the first shell 22.

[0092] In some embodiments, as Figure 5-Figure 6 As shown, the conductive pattern 14 further includes a third connection region 16. The third connection region 16 is located on a side of the first radiating arm 31 close to the mounting surface 223. The conductive foil is electrically connected to the third connection region 16 through the mounting surface 223 to form a second electrical path, and the first radiating arm 31 is coupled to the second electrical path.

[0093] Specifically, the third connection area 16, the first side plate 225 and the connecting arm 33 in this embodiment form a second electrical path. The current on the connecting arm 33 will pass through the mounting surface 223 and be conducted to the third connection area 16 (such as Figure 6 As shown by arrow a2 in the middle. Thus, the second electrical path can form a low-frequency radiating unit 51 together with the first electrical path and the first radiating arm 31. Furthermore, the coupling strength between the first radiating arm 31 and the first shell 22 is improved, and the bandwidth of the low-frequency radiating unit 51 is widened, allowing the low-frequency radiating unit 51 to operate at a lower frequency band.

[0094] Optionally, the third connection region 16 can be configured to extend to the edge of the substrate 12. When the conductive module 1 is placed in the mounting groove 224, the third connection region 16 can abut against the sidewall of the mounting groove 224. Alternatively, another conductive foil can be attached to the third connection region 16 and the mounting surface 223 to achieve electrical connection between the third connection region 16 and the connecting arm 33 through the first shell portion 22.

[0095] Preferably, if Figure 5As shown, the first radiating arm 31 includes a first extension branch 311, a second extension branch 312, and a third extension branch 313, which are connected in sequence. The two ends of the first extension branch 311 are respectively connected to the second extension branch 312 and the second connection area 15. The third connection area 16 and the third extension branch 313 are also connected to the second extension branch 312. The first extension branch 311 and the second extension branch 312 extend away from the connection arm 33, and the third extension branch 313 extends toward the ground portion 4, so that the end of the first radiating arm 31 is bent toward the ground portion 4. In addition, the third extension branch 313 is closer to the frame 221 than the first extension branch 311. As a result, the coupling strength between the first radiating arm 31 and the frame 221 is increased, thereby improving the radiation gain of the low-frequency radiating unit 51.

[0096] In some embodiments, as Figure 5 As shown, the ground portion 4 has a grounding area 42. Figure 2 As shown, the antenna assembly also includes a coaxial cable 6. The coaxial cable 6 has a connecting end 61, which includes an inner conductor 62 and an outer conductor 63. The inner conductor 62 is a wire core, and the outer conductor 63 is a braided layer. The connecting end 61 bends from the ground portion 4 toward the second radiating arm 32. The outer conductor 63 is connected to the grounding area 42, and the inner conductor 62 is connected to the feeding area 321. Thus, the coaxial cable 6 provides power feeding to the second radiating arm 32 and grounding to the ground portion 4. Furthermore, this reduces reflection losses within the antenna assembly while shielding electromagnetic signals.

[0097] Figure 8 Schematic diagram of the structure of the electronic device of this embodiment. Figure 9 Schematic diagram of an explosion of the electronic device of this embodiment.

[0098] In some embodiments, as Figure 8-Figure 9 As shown, the antenna assembly described above can be applied to electronic devices. These devices can be laptop computers, mobile phones, smart watches, and other electronic devices. Taking a laptop computer as an example, the metal shell 2 forms the laptop's outer shell, with the second shell portion 23 serving as the upper cover. That is, when the laptop is folded, the second shell portion 23 mates with the display screen. The first shell portion 22 serves as the lower cover, and the first side panel 225 is located at the bottom of the laptop computer. The L-shaped structure is located at the top corner of the laptop computer.

[0099] In summary, the electronic device in this embodiment disposes the conductive module 1 of the antenna assembly within the accommodation area 21, thereby utilizing the metal shell 2 to protect and secure the conductive module 1. Thus, the connecting arm 33 is connected to the ground portion 4 via the metal shell 2, so that the conductive structure 11 and the metal shell 2 form a first electrical path. The first radiating arm 31 and the second radiating arm 32 respectively form a low-frequency radiating unit 51 and a high-frequency radiating unit 52 with the metal shell 2, thereby utilizing the metal shell 2 to transmit and receive electromagnetic signals. This avoids the need for metal breakpoints on the metal shell 2, thereby improving the mechanical strength of the metal shell 2 and the signal gain of the antenna assembly. Furthermore, the manufacturing cost of the metal shell 2 is reduced. Furthermore, the coupling gap 13 between the ground portion 4 and the second radiating arm 32 is utilized to increase the impedance of the high-frequency radiating unit 52, ensuring that the antenna assembly maintains good impedance characteristics when operating at high frequencies, and increasing the operating bandwidth of the antenna assembly.

[0100] Figure 10 This is a schematic diagram of the return loss simulation of the antenna assembly of this embodiment. As can be seen from the figure, the return loss of the antenna assembly of the electronic device is generally below -6dB from the low frequency band of 1.45GHz to 1.9GHz to the high frequency band of 1.9GHz to 2.4GHz, thus meeting the radiation efficiency requirements of the antenna assembly. For example, mobile communications can use the low-frequency radiation unit 51, while Wi-Fi and Bluetooth signals can reuse the high-frequency radiation unit 52.

[0101] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An antenna assembly, characterized in that: The antenna assembly comprises: A metal shell (2) having a receiving area (21); and A conductive module (1) is arranged in the accommodating area (21) and includes a conductive structure (11), the conductive structure (11) includes a radiating portion (3) and a grounding portion (4), the radiating portion (3) includes a first radiating arm (31), a second radiating arm (32) and a connecting arm (33), the ends of the first radiating arm (31) and the second radiating arm (32) are electrically connected to one end of the connecting arm (33), the other end of the connecting arm (33) is connected to the metal shell (2), and the connecting arm (33) forms a first electrical path with the metal shell (2) and the grounding portion (4); The first radiation arm (31) is coupled with the first electrical path to form a low-frequency radiation unit (51), a coupling gap (13) is formed between the second radiation arm (32) and the ground portion (4), and the second radiation arm (32) and the first electrical path form a high-frequency radiation unit (52), wherein the impedance of the high-frequency radiation unit (52) is greater than that of the low-frequency radiation unit (51).

2. The antenna assembly according to claim 1, wherein: The ground portion (4) is adjacent to the second radiation arm (32) and is away from the first radiation arm (31); The grounding portion (4) has a first connection area (41) and a grounding area (42), wherein the grounding area (42) is located between the coupling gap (13) and the first connection area (41), and the first connection area (41) is connected to the metal shell (2).

3. The antenna assembly according to claim 2, wherein: The metal shell (2) comprises a first shell portion (22) and a second shell portion (23); the first shell portion (22) and the second shell portion (23) are buckled together to form the accommodating area (21); the first shell portion (22) comprises a frame (221); The conductive module (1) further comprises a substrate (12), at least a portion of the conductive structure (11) is arranged on the substrate (12), the substrate (12) is fixedly connected to the first shell (22), and the first connection area (41) abuts against the frame (221).

4. The antenna assembly according to claim 3, wherein: The frame (221) has a positioning groove (222), and the positioning groove (222) faces the inner side of the first shell portion (22); The base plate (12) includes a positioning protrusion (121), the positioning protrusion (121) is protruding from the edge of the base plate (12), the first connection area (41) is located on the positioning protrusion (121), the positioning protrusion (121) is inserted into the positioning groove (222), and the first connection area (41) abuts against the inner wall of the positioning groove (222).

5. The antenna assembly according to claim 1, wherein: The connecting arm (33) extends in a direction away from the grounding portion (4); One end of the second radiating arm (32) has a feeding area (321), the other end of the second radiating arm (32) extends in a direction away from the first radiating arm (31), and the grounding portion (4) is located on a side of the second radiating arm (32) away from the connecting arm (33).

6. The antenna assembly according to claim 5, wherein: The conductive structure (11) comprises a conductive pattern (14) and the connecting arm (33); the conductive pattern (14) comprises the ground portion (4), the first radiation arm (31), the second radiation arm (32) and a second connecting area (15); the first radiation arm (31) and the second radiation arm (32) extend from the second connecting area (15) to both sides; and the connecting arm (33) is a conductive foil; The conductive module (1) further comprises a substrate (12), the conductive pattern (14) is arranged on the substrate (12), one end of the conductive foil is attached to the second connection area (15), and the other end is attached to the metal shell (2).

7. The antenna assembly according to claim 6, wherein: The metal shell (2) comprises a first shell portion (22) and a second shell portion (23); the first shell portion (22) and the second shell portion (23) are buckled together to form the accommodating area (21); the first shell portion (22) has a mounting surface (223); and the mounting surface (223) has a mounting groove (224) facing the second shell portion (23); The conductive module (1) is arranged in the mounting groove (224), and the conductive foil extends from the second connection area (15) to the mounting surface (223) and is electrically connected to the mounting surface (223).

8. The antenna assembly according to claim 7, wherein: The conductive pattern (14) further includes a third connection area (16), the third connection area (16) being located on a side of the first radiation arm (31) close to the mounting surface (223), the conductive foil being electrically connected to the third connection area (16) through the mounting surface (223) to form a second electrical path, and the first radiation arm (31) being coupled to the second electrical path.

9. The antenna assembly according to claim 5, wherein: The grounding portion (4) has a grounding area (42); The antenna assembly further comprises a coaxial line (6), the coaxial line (6) having a connecting end (61), the connecting end (61) comprising an inner conductor (62) and an outer conductor (63); The connection end (61) is bent from the ground portion (4) toward the second radiation arm (32), the outer conductor (63) is connected to the ground region (42), and the inner conductor (62) is connected to the feed region (321).

10. An electronic device, characterized in that: The electronic device comprises: The antenna assembly according to any one of claims 1 to 9.

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