Antenna module and electronic equipment

Abstract

The utility model relates to an antenna module and electronic equipment. The antenna module comprises an antenna radiator; the parasitic branch knot is provided with a first end part and a second end part; a gap is formed between the first end part and the antenna radiator; the second end part is connected with a grounding structure; wherein when the antenna radiator and the parasitic branch knot transmit and receive wireless signals, the length of a current path formed by the grounding structure is related to the shape of the grounding structure. According to the embodiment of the invention, the overall radiation length of the antenna module is regulated and controlled by designing the shape of the ground returning structure of the parasitic branch knot.

Description

Technical Field

[0001] This disclosure relates to the field of antenna technology, and more particularly to an antenna module and electronic device. Background Technology

[0002] With the development of communication technology, antenna designs in electronic devices are becoming increasingly compact. In the design of mid-frame antennas in electronic devices, whether cellular antennas or short-range antennas, performance improvements are typically achieved through inverted F-antenna (IFA) and parasitic stub designs. This requires a significant amount of space on the mid-frame for these parasitic stubs, making it crucial to control the length of the mid-frame antenna within the limited space of the electronic device a pressing issue.

[0003] In related technologies, either a mid-frame device is introduced into the antenna radiator or parasitic stub for tuning, or a special structural design is made to the antenna radiator to control the length of the mid-frame antenna. This not only has the problem of complex design, but also the problem of high loss due to the introduction of mid-frame devices for tuning. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides an antenna module and electronic device that can control the overall radiation length of the antenna module by designing the shape of the grounding structure of the parasitic stub.

[0005] According to a first aspect of the present disclosure, an antenna module is provided, comprising:

[0006] Antenna radiator;

[0007] The parasitic branch has a first end and a second end;

[0008] The first end portion has a gap with the antenna radiator;

[0009] The second end is connected to a grounding structure;

[0010] When the antenna radiator and the parasitic stub transmit and receive wireless signals, the length of the current path formed by the grounding structure is related to the shape of the grounding structure.

[0011] In some embodiments, the grounding structure has a first surface, a second surface disposed opposite to the first surface, and a third surface connecting the first surface and the second surface;

[0012] At least one of the first surface, the second surface and the third surface has a groove formed thereon.

[0013] In some embodiments, a first groove is formed on the first surface and a second groove is formed on the second surface, and the current path formed by the corresponding ground return structure is the first current path;

[0014] A third groove is formed on the first or second surface, and the current path formed by the corresponding ground return structure is the second current path.

[0015] The length of the first current path is greater than the length of the second current path.

[0016] In some embodiments, the grounding structure includes a partition;

[0017] The partition connects the first surface and the second surface, and divides the ground return structure into a first structure and a second structure; the first structure is located between the partition and the parasitic branch.

[0018] The first surface of the first structure is recessed to form the first groove;

[0019] The second surface of the second structure is recessed to form the second groove.

[0020] In some embodiments, the current flow direction in the first current path is Z-shaped.

[0021] In some embodiments, the partition is arranged parallel to or intersects with the parasitic branch.

[0022] In some embodiments, the backfill structure includes a third structure and a fourth structure, wherein the third structure is connected between the fourth structure and the parasitic branch;

[0023] The first surface or the second surface of the fourth structure is recessed to form the third groove.

[0024] In some embodiments, the current flow direction in the second current path is C-shaped.

[0025] According to a second aspect of the present disclosure, an electronic device is provided, comprising:

[0026] Antenna modules as described in one or more of the above embodiments;

[0027] The middle frame is reused as the antenna radiator and parasitic branch of the antenna module.

[0028] In some embodiments, the electronic device includes volume buttons and a power button;

[0029] The volume buttons and the power button are located on the same side of the electronic device's frame.

[0030] The middle frame corresponding to the volume buttons is reused as the antenna radiator;

[0031] The middle frame corresponding to the power button is reused as the parasitic branch.

[0032] In some embodiments, the space enclosed by the parasitic branch and the grounding structure is used to accommodate the button body of the power button;

[0033] The third surface of the grounding structure is recessed in the direction away from the button body.

[0034] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0035] In this embodiment, the length of the current path formed by the grounding structure when the antenna radiator and parasitic stub transmit and receive wireless signals is related to the shape of the grounding structure. Therefore, by changing the shape of the grounding structure, the length of the current path can be varied. Different current path lengths result in different overall radiation lengths of the antenna module. Thus, this embodiment can control the overall radiation length of the antenna module by designing the shape of the grounding structure of the parasitic stub. In this way, when the antenna module operates at the same resonant frequency, the current path length of the grounding structure can be extended by designing the shape of the grounding structure, thereby shortening the length of the parasitic stub or antenna radiator, and ultimately reducing the space occupied by the antenna module.

[0036] Furthermore, compared to designing a special structure for the antenna radiator or adding tuning components to the mid-frame, the embodiments disclosed herein are not only simpler to design, but also reduce losses caused by adding tuning components to the mid-frame. Additionally, the embodiments disclosed herein modify the grounding structure connecting the parasitic stubs, which reduces the impact on the antenna radiator, thereby reducing the need for adjustments to the matching circuit within the antenna radiator.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0039] Figure 1 This is a schematic diagram of the structure of an antenna module according to an exemplary embodiment. Figure 1 .

[0040] Figure 2 This is a schematic diagram illustrating the formation of a first groove on a first surface according to an exemplary embodiment.

[0041] Figure 3 This is a schematic diagram illustrating the formation of a second groove on a second surface according to an exemplary embodiment.

[0042] Figure 4 This is a schematic diagram illustrating the formation of a first groove and a second groove according to an exemplary embodiment.

[0043] Figure 5 This is a schematic diagram of the first surface when the second surface forms the third groove, according to an exemplary embodiment.

[0044] Figure 6 This is a schematic diagram of the second surface when a third groove is formed on the second surface according to an exemplary embodiment.

[0045] Figure 7 This is a schematic diagram illustrating a first current path according to an exemplary embodiment.

[0046] Figure 8 This is a schematic diagram illustrating a second current path according to an exemplary embodiment.

[0047] Figure 9 This is a schematic diagram comparing antennas with Z-shaped and C-shaped flow directions according to an exemplary embodiment.

[0048] Figure 10 This is a structural block diagram of an electronic device according to an exemplary embodiment. Detailed Implementation

[0049] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0050] This disclosure provides an antenna module for use in communication scenarios. For example, when the antenna module operates in the mid-to-high frequency band, the antenna module of this disclosure can be used. By setting the shape of the second end of the parasitic stub, the current path formed by the grounding position of the parasitic stub can be different, thereby controlling the radiation length of the antenna module. This not only simplifies implementation and design but also eliminates the need for additional components, reducing antenna loss.

[0051] Figure 1 This is a schematic diagram of the structure of an antenna module according to an exemplary embodiment. Figure 1 .like Figure 1 As shown, the antenna structure includes:

[0052] Antenna radiator 101;

[0053] Parasitic segment 102 has a first end and a second end;

[0054] The first end has a gap with the antenna radiator 101;

[0055] The second end is connected to a grounding structure 103;

[0056] When the antenna radiator 101 and the parasitic branch 102 transmit and receive wireless signals, the length of the current path formed by the ground return structure is related to the shape of the ground return structure.

[0057] In this embodiment of the disclosure, the antenna module is used to transmit and receive wireless signals, and can transmit and receive wireless communications such as Bluetooth (BT), WiFi, GPS, Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), and satellite communication.

[0058] It should be noted that antenna modules can be used in electronic devices, including smartphones, tablets, laptops, wearable devices, and personal digital assistants (PDAs). Wearable devices include, but are not limited to, smartwatches or smart bracelets.

[0059] In this embodiment, the antenna radiator can operate in different frequency bands under the excitation of a feed signal. These different frequency bands include: cellular antenna bands, Bluetooth antenna bands, and wireless fidelity antenna bands, etc. The cellular antenna bands include at least low-frequency bands or mid-to-high-frequency bands.

[0060] It should be noted that the antenna radiator can be formed from the mid-frame of the electronic device, or from the side key pressing part of the side key assembly of the electronic device, or it can be formed by laser direct forming (LDS), etc. The embodiments disclosed herein do not limit this.

[0061] In this embodiment, the parasitic branch is spaced apart from the antenna radiator and can couple with the antenna radiator to transmit and receive wireless signals.

[0062] It should be noted that by designing parasitic stubs to couple with the antenna radiator, they can jointly transmit and receive wireless signals, thereby improving the transmit and receive performance of the antenna module.

[0063] In this embodiment of the present disclosure, the parasitic branch has a first end and a second end, which may be two ends disposed opposite to each other in the parasitic branch.

[0064] There is a gap between the first end and the antenna radiator, meaning the first end is closer to the antenna radiator and the second end is farther away from the antenna radiator. Furthermore, when the parasitic stub and the antenna radiator transmit or receive wireless signals, the wireless signal can be transmitted outward through the gap.

[0065] It should be noted that the spacing of the gaps can be set according to the actual situation, and this embodiment does not impose any restrictions on this.

[0066] The second end is connected to a grounding structure, which is grounded. Here, the grounding structure can be connected to the ground plane of the motherboard in the electronic device via a spring contact.

[0067] In this embodiment of the disclosure, the antenna radiator, parasitic stubs, and grounding structure can all be formed of the same material, or they can be formed of different materials.

[0068] For example, the antenna module is used in an electronic device, which includes a conductive frame, an antenna radiator, parasitic stubs, and a grounding structure, all of which can be formed by reusing the conductive frame.

[0069] In this embodiment of the disclosure, when the antenna radiator and parasitic stubs transmit and receive wireless signals, the length of the current path formed by the ground return structure is related to the shape of the ground return structure. Therefore, by changing the shape of the ground return structure, the length of the current path formed by the ground return structure can be made different.

[0070] In other words, the embodiments disclosed herein do not involve special structural design of the antenna radiator to control the overall radiation length of the antenna module, nor do they involve introducing mid-frame device tuning to control the overall radiation length of the antenna module. Instead, the shape design at the ground return structure of the parasitic stub can be used to change the length of the current path formed by the ground return structure, thereby changing the overall radiation length of the antenna module by controlling the radiation length of the parasitic stub.

[0071] It should be noted that the embodiments disclosed herein design the shape of the parasitic branch's grounding structure. Therefore, compared to designing a special structure for the antenna radiator or adding mid-frame components for tuning, the embodiments disclosed herein can reduce the impact on the antenna radiator, and thus reduce the need for adjustments to the matching circuit within the antenna radiator.

[0072] In this embodiment of the disclosure, the length of the current path formed by the return ground structure is related to the shape of the return ground structure, and may include: when the return ground structure has different shapes, different shapes of return ground structures can form current paths of different lengths.

[0073] Here, the shape of the return ground structure can vary, including designing different surfaces of the return ground structure. For example, protrusions or grooves can be set on different surfaces of the return ground structure to change the shape of the return ground structure, thereby changing the length of the current path formed by the return ground structure.

[0074] It should be noted that the length of the current path in the grounding structure varies, resulting in different overall radiation lengths of the antenna module. Furthermore, the overall radiation length of the antenna module is negatively correlated with its resonant frequency. Therefore, different lengths of the current path formed by the antenna module's grounding structure lead to different resonant frequencies.

[0075] For example, if the length of the antenna radiator and the length of the parasitic stub remain unchanged, extending the current path length of the grounding structure will also extend the overall radiation length of the antenna module, thereby reducing the resonant frequency of the antenna module.

[0076] It is understood that in the embodiments of this disclosure, the length of the current path formed by the grounding structure when the antenna radiator and parasitic stubs transmit and receive wireless signals is related to the shape of the grounding structure. Therefore, by changing the shape of the grounding structure, the length of the current path can be varied. Furthermore, different current path lengths result in different overall radiation lengths of the antenna module. Thus, the embodiments of this disclosure can control the overall radiation length of the antenna module by designing the shape of the grounding structure of the parasitic stubs. In this way, when the antenna module operates at the same resonant frequency, the current path length of the grounding structure can be extended by designing the shape of the grounding structure, thereby shortening the length of the parasitic stubs or antenna radiator, and ultimately reducing the space occupied by the antenna module.

[0077] Furthermore, compared to designing a special structure for the antenna radiator or adding tuning components to the mid-frame, the embodiments disclosed herein are not only simpler to design but also reduce losses caused by adding tuning components to the mid-frame. Additionally, the embodiments disclosed herein modify the grounding structure connecting the parasitic stub, which reduces the impact on the antenna radiator and thus reduces the need for adjustments to the matching circuit within the antenna radiator. Simultaneously, the embodiments disclosed herein also allow for flexible selection of the top frame position on the parasitic stub to meet different top frame requirements on the parasitic stub.

[0078] In some embodiments, such as Figures 1 to 3 As shown, the grounding structure 103 has a first surface A, a second surface B disposed opposite to the first surface A, and a third surface C connecting the first surface A and the second surface B;

[0079] At least one of the first surface A, the second surface B, and the third surface C has a groove formed thereon.

[0080] In this embodiment of the disclosure, the grounding structure may have grooves formed on the first surface, the second surface, or the third surface; it may also have grooves formed on both the first and third surfaces, or on both the second and third surfaces, or on all three surfaces. This embodiment of the disclosure does not limit the scope of the grooves.

[0081] It should be noted that the shape and size of the groove can be set according to actual needs, and the embodiments disclosed herein do not impose any restrictions on this.

[0082] For example, the antenna module can be applied in an electronic device. The first surface may include a top surface, which is on the same side as the top layer of the motherboard in the electronic device. The second surface may include a bottom surface, which is on the same side as the bottom layer of the motherboard in the electronic device. The third surface may be a side surface connecting the bottom surface and the top surface.

[0083] It is understood that by providing grooves on different surfaces of the ground return structure, the length of the current path formed by the ground return structure can be changed, thereby changing the overall radiation length of the antenna module.

[0084] In some embodiments, such as Figures 2 to 6 As shown, a first groove 104 is formed on the first surface A, and a second groove 105 is formed on the second surface B. The current path formed by the corresponding ground return structure is the first current path.

[0085] The first surface A or the second surface B has a third groove 106, and the current path formed by the corresponding ground return structure is the second current path.

[0086] The length of the first current path is greater than the length of the second current path.

[0087] In this embodiment of the disclosure, a first groove is formed on a first surface, which may include: the first surface may be recessed at different positions to form the first groove. A second groove is formed on a second surface, which may include: the second surface may be recessed at different positions to form the second groove.

[0088] For example, the first groove may be formed by the depression of a first surface near the parasitic node, or by the depression of a first surface away from the parasitic node. The second groove may be formed by the depression of a second surface near the parasitic node, or by the depression of a second surface away from the parasitic node.

[0089] In this embodiment of the disclosure, the opening orientation of the first groove is opposite to that of the second groove.

[0090] For example, the antenna module can be applied to an electronic device, with the opening of the first groove facing the screen of the electronic device and the opening of the second groove facing the back cover of the electronic device.

[0091] It should be noted that the first groove and the second groove can be two grooves with the same groove wall. In this way, the current generated by the return structure can flow to the same groove wall, thereby extending the first current path.

[0092] For example, the current flow direction in the first current path can be Z-shaped or S-shaped, and this disclosure does not limit this.

[0093] In this embodiment of the present disclosure, a first groove can be formed on a first surface and a second groove can be formed on a second surface to change the shape of the ground return structure, thereby enabling the ground return structure to form a first current path. A third groove can also be formed on the first or second surface to change the shape of the ground return structure, thereby enabling the ground return structure to form a second current path.

[0094] It should be noted that the third groove can be formed at different locations on the first surface or the second surface.

[0095] For example, the third groove may be formed by both the first surface and the second surface near the parasitic node being recessed; or it may be formed by both the first surface and the second surface away from the parasitic node being recessed.

[0096] In this embodiment, the length of the first current path is greater than the length of the second current path. Therefore, with the lengths of the parasitic stub and the antenna radiator fixed, the antenna resonant frequency corresponding to the first current path is lower than the antenna resonant frequency corresponding to the second current path.

[0097] It is understood that the embodiments of this disclosure not only propose setting a first groove and a second groove to change the shape of the return ground structure to form a first current path, but also propose setting a third groove to change the shape of the return ground structure to form a second current path. Therefore, in practical design, the design for changing the shape of the return ground structure can be selected based on the length of the current path required for the return ground path.

[0098] Furthermore, by setting the first, second, and third grooves to change the shape of the grounding structure, the stress corresponding to different surfaces of the grounding structure can be made different. Therefore, the groove sizes of the first, second, and third grooves can be set according to the reliability of the grounding structure, and this embodiment does not limit this.

[0099] In some embodiments, such as Figures 2 to 4 As shown, the grounding structure 103 includes a partition 107;

[0100] The partition 107 connects the first surface A and the second surface B, and divides the ground return structure into a first structure and a second structure; the first structure is located between the partition 107 and the parasitic branch 102.

[0101] The first surface A of the first structure is recessed to form the first groove 104;

[0102] The second surface B of the second structure is recessed to form the second groove 105.

[0103] In this embodiment of the disclosure, the partition divides the grounding structure into a first structure and a second structure, with the first structure located between the partition and the parasitic branch. That is, the first structure is positioned closer to the parasitic branch than the second structure.

[0104] It should be noted that the positional relationship between the partition and the parasitic branch is not limited in the embodiments disclosed herein. In some embodiments, such as Figure 4 As shown, the partition 107 and the parasitic branch 102 can be arranged in parallel. In other embodiments, the partition and the parasitic branch can be arranged intersecting.

[0105] In this embodiment of the disclosure, when current is generated in the grounding structure, the current can flow along the first edge of the partition. Here, the partition includes a first edge, a second edge, and a third edge, the second edge and the third edge being two edges disposed opposite to each other. The second edge can be connected to the first surface, the third edge can be connected to the second surface, and the first edge can be connected between the second edge and the third edge.

[0106] It should be noted that the shape of the first edge of the partition can change the shape of the first circuit path. In some embodiments, the first current path flows in a Z-shape.

[0107] Figure 7 This is a schematic diagram illustrating a first current path according to an exemplary embodiment. The arrows indicate the direction of the first current path, as shown below. Figure 7 As shown, the first current path flows in a Z-shaped direction.

[0108] Of course, when the first edge of the partition is in different arc shapes, the first current path can also have other irregular shapes, and the embodiments disclosed herein do not limit this.

[0109] In this embodiment of the disclosure, the first surface of the first structure is recessed to form a first groove. That is, the partition, the second surface, and the parasitic branch surround the first groove.

[0110] It should be noted that, since the first surface of the first structure is recessed, openings are formed on both the third surface and the first surface of the first structure, and the openings on the third surface and the first surface are connected to form the groove of the first groove. That is, the first groove has grooves formed on both the third surface and the first surface.

[0111] In this embodiment of the disclosure, the second surface of the second structure is recessed to form a second groove. That is, the partition and the first surface surround the second groove.

[0112] It should be noted that, since the second surfaces of the second structure are all recessed, openings are formed on both the third and second surfaces of the second structure. These openings are connected and form the groove of the second recess. In other words, the second recess has grooves formed on both the third and second surfaces.

[0113] It is understood that the embodiments of this disclosure divide the structure into a first structure and a second structure by means of a partition, and a first groove is provided in the first structure and a second groove is provided in the second structure. In this way, the partition can be a common groove wall for the first groove and the second groove, so that the current of the return structure will flow to the first edge of the partition, thereby forming a first current path.

[0114] In some embodiments, such as Figure 5 and Figure 6 As shown, the backfill structure includes a third structure and a fourth structure, with the third structure connecting the fourth structure and the parasitic branch;

[0115] The first surface A or the second surface B of the fourth structure are both recessed to form the third groove 106.

[0116] In this embodiment of the disclosure, the third structure is connected between the fourth structure and the parasitic branch. That is, the fourth structure is located away from the parasitic branch relative to the third structure.

[0117] It should be noted that when the first surface of the fourth structure is recessed to form the third groove, both the third surface and the first surface of the fourth structure have openings, and the openings of the third surface and the first surface are connected to form the opening of the third groove. That is, the third groove has openings on both the first and third surfaces.

[0118] In this embodiment of the disclosure, the current flow direction of the second current path formed by the grounding structure after the third groove is provided is related to the arc shape of the third surface. Specifically, different arc shapes of the third surface correspond to different current flow directions in the second current path.

[0119] It is understood that, by forming a third groove on the first or second surface of the fourth structure, the ground return structure can form a second current path.

[0120] In some embodiments, the current flows in a C-shape in the second current path.

[0121] Figure 8 This is a schematic diagram illustrating a second current path according to an exemplary embodiment. The arrows indicate the direction of the second current path, as shown below. Figure 8 As shown, the second current path flows in a C-shape.

[0122] Of course, when the arc shape of the third surface is other arc shapes, the second current path can also have other irregular shapes of flow direction, and the embodiments disclosed herein do not limit this.

[0123] It should be noted that, since the current in the first current path flows along the first edge of the partition, the circuit path is lengthened, making the length of the first current path greater than the length of the second current path.

[0124] It is understood that the present disclosure also proposes a method for forming a third groove, which enables the ground return structure to form a second current path by setting the third groove, thereby enabling the ground return structure to form current paths of different lengths by setting the ground return structure to have different shapes.

[0125] To better understand the antenna module described in one or more of the above embodiments, examples of embodiments of this disclosure are as follows:

[0126] like Figure 7 As shown, the current flow direction in the first current path is Z-shaped. Figure 8 As shown, the current flow direction in the second current path is C-shaped.

[0127] It should be noted that, with the same parasitic stubs and antenna radiators, changing the shape of the grounding structure can alter the current flow direction of the grounding structure, thereby changing the antenna resonant frequency.

[0128] Figure 9 This is a schematic diagram comparing antennas with Z-shaped and C-shaped flow directions according to an exemplary embodiment. Figure 9 As shown, the horizontal axis represents frequency in GHz; the vertical axis can represent output return loss, radiation efficiency, or total antenna efficiency in dB.

[0129] Verification showed that, under the same parasitic stubble conditions, as shown at calibration points 1 and 4, the antenna resonant frequency corresponding to the Z-shaped flow direction is 2.8 GHz. As shown at calibration points 2 and 3, the antenna resonant frequency corresponding to the C-shaped flow direction is 3.1 GHz. There is a difference of 300 MHz between the two.

[0130] This disclosure also proposes an electronic device, which includes:

[0131] Antenna modules as described in one or more of the above embodiments;

[0132] The middle frame is reused as the antenna radiator and parasitic branch of the antenna module.

[0133] In this embodiment of the disclosure, the middle frame is a conductive middle frame, which may be made of metal material.

[0134] It should be noted that by reusing the mid-frame as an antenna radiator and parasitic stub, not only can the functionality of the mid-frame be enriched, but the space occupied by the antenna module in the middle of the electronic device can also be reduced, thereby improving the space utilization of the electronic device.

[0135] In some embodiments, the electronic device includes volume buttons and a power button;

[0136] The volume buttons and the power button are located on the same side of the electronic device's frame.

[0137] The middle frame corresponding to the volume buttons is reused as the antenna radiator;

[0138] The middle frame corresponding to the power button is reused as the parasitic branch.

[0139] In this embodiment of the disclosure, when the volume pressing part of the volume button is a conductive pressing part, both the volume pressing part of the volume button and the corresponding middle frame of the volume button can be reused as an antenna radiator.

[0140] When the power button's power pressing part is a conductive pressing part, both the power pressing part of the power button and the corresponding middle frame of the power button can be reused as parasitic branches.

[0141] It is understandable that reusing the mid-frame corresponding to the volume buttons as an antenna radiator and the mid-frame corresponding to the power button as a parasitic branch can make full use of the mid-frames corresponding to different buttons on electronic devices.

[0142] In some embodiments, such as Figure 1 As shown, the space enclosed by the parasitic branch 102 and the grounding structure 103 is used to accommodate the button body of the power button 201.

[0143] The third surface C of the grounding structure 103 is recessed in the direction away from the button body.

[0144] Understandably, by setting the third surface to be recessed away from the button body, the maximum amount of space can be reserved, which can meet the requirements of a more compact structural design for electronic devices.

[0145] In this embodiment of the disclosure, the electronic device includes an antenna module. The length of the current path formed by the grounding structure when the antenna radiator and parasitic stubs transmit and receive wireless signals is related to the shape of the grounding structure. Therefore, by changing the shape of the grounding structure, the length of the current path can be varied. Furthermore, different current path lengths result in different overall radiation lengths of the antenna module. Thus, this embodiment of the disclosure can control the overall radiation length of the antenna module by designing the shape of the grounding structure of the parasitic stubs. In this way, when the antenna module operates at the same resonant frequency, the current path length of the grounding structure can be extended by designing the shape of the grounding structure, thereby shortening the length of the parasitic stubs or antenna radiator, and ultimately reducing the space occupied by the antenna module.

[0146] Furthermore, compared to designing a special structure for the antenna radiator or adding tuning components to the mid-frame, the embodiments disclosed herein are not only simpler to design but also reduce losses caused by adding tuning components to the mid-frame. Additionally, the embodiments disclosed herein modify the grounding structure connecting the parasitic stub, which reduces the impact on the antenna radiator and thus reduces the need for adjustments to the matching circuit within the antenna radiator. Simultaneously, the embodiments disclosed herein also allow for flexible selection of the top frame position on the parasitic stub to meet different top frame requirements on the parasitic stub.

[0147] Figure 10 This is a structural block diagram of an electronic device according to an exemplary embodiment. For example, the electronic device 1000 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0148] Reference Figure 10 The electronic device 1000 may include one or more of the following components: processing component 1002, memory 1004, power supply component 1006, multimedia component 1008, audio component 1010, input / output (I / O) interface 1012, sensor component 1014, and communication component 1016.

[0149] Processing component 1002 typically controls the overall operation of electronic device 1000, such as operations associated with at least one of display, telephone call, data communication, camera operation, and recording operation. Processing component 1002 may include one or more processors 1020 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 1002 may include one or more modules to facilitate interaction between processing component 1002 and other components. For example, processing component 1002 may include a multimedia module to facilitate interaction between multimedia component 1008 and processing component 1002.

[0150] Memory 1004 is configured to store various types of data to support operation on electronic device 1000. Examples of such data include at least one of the following: instructions for any application or method operating on electronic device 1000, contact data, phonebook data, messages, pictures, and videos. Memory 1004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0151] Power supply component 1006 provides power to various components of electronic device 1000. Power supply component 1006 may include at least one of the following: a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1000.

[0152] Multimedia component 1008 includes a screen that provides an output interface between electronic device 1000 and user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 1008 includes a front-facing camera and / or a rear-facing camera. When electronic device 1000 is in an operating mode, such as a shooting mode or video mode, the front-facing camera and / or rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0153] Audio component 1010 is configured to output and / or input audio signals. For example, audio component 1010 includes a microphone (MIC) configured to receive external audio signals when electronic device 1000 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1004 or transmitted via communication component 1016. In some embodiments, audio component 1010 also includes a speaker for outputting audio signals.

[0154] I / O interface 1012 provides an interface between processing component 1002 and peripheral interface modules, such as keyboards, click wheels, and buttons. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0155] Sensor assembly 1014 includes one or more sensors for providing state assessments of various aspects of electronic device 1000. For example, sensor assembly 1014 may detect the on / off state of electronic device 1000, the relative positioning of components (e.g., the display and keypad of electronic device 1000), changes in position of electronic device 1000 or one of its components, the presence or absence of user contact with electronic device 1000, orientation or acceleration / deceleration of electronic device 1000, and temperature changes of electronic device 1000. Sensor assembly 1014 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1014 may also include an optical sensor, such as a complementary metal-oxide-semiconductor (CMOS) or charge-coupled device (CCD) image sensor, for use in imaging applications. In some embodiments, sensor assembly 1014 may also include, but is not limited to, at least one of the following: an accelerometer, a gyroscope, a magnetometer, a pressure sensor, and a temperature sensor.

[0156] Communication component 1016 is configured to facilitate wired or wireless communication between electronic device 1000 and other devices. Electronic device 1000 can access wireless networks based on communication standards, such as Wi-Fi, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 1016 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1016 also includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wide Band (UWB), Bluetooth (BT), and other technologies.

[0157] In an exemplary embodiment, the electronic device 1000 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0158] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0159] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An antenna module, characterized in that, include: Antenna radiator; The parasitic branch has a first end and a second end; The first end portion has a gap with the antenna radiator; The second end is connected to a grounding structure; When the antenna radiator and the parasitic stub transmit and receive wireless signals, the length of the current path formed by the grounding structure is related to the shape of the grounding structure.

2. The antenna module according to claim 1, characterized in that, The grounding structure has a first surface, a second surface disposed opposite to the first surface, and a third surface connecting the first surface and the second surface; At least one of the first surface, the second surface and the third surface has a groove formed thereon.

3. The antenna module according to claim 2, characterized in that, The first surface has a first groove, the second surface has a second groove, and the current path formed by the corresponding ground return structure is the first current path; A third groove is formed on the first or second surface, and the current path formed by the corresponding ground return structure is the second current path. The length of the first current path is greater than the length of the second current path.

4. The antenna module according to claim 3, characterized in that, The grounding structure includes a partition; The partition connects the first surface and the second surface, and divides the ground return structure into a first structure and a second structure; the first structure is located between the partition and the parasitic branch. The first surface of the first structure is recessed to form the first groove; The second surface of the second structure is recessed to form the second groove.

5. The antenna module according to claim 4, characterized in that, The current flows in a Z-shaped direction in the first current path.

6. The antenna module according to claim 4, characterized in that, The partition is arranged parallel to or intersects with the parasitic branch.

7. The antenna module according to claim 3, characterized in that, The backfill structure includes a third structure and a fourth structure, wherein the third structure is connected between the fourth structure and the parasitic branch; The first surface or the second surface of the fourth structure is recessed to form the third groove.

8. The antenna module according to claim 7, characterized in that, The current flows in a C-shape in the second current path.

9. An electronic device, characterized in that, include: The antenna module as described in any one of claims 1 to 8; The middle frame is reused as the antenna radiator and parasitic branch of the antenna module.

10. The electronic device according to claim 9, characterized in that, The electronic device includes volume buttons and a power button; The volume buttons and the power button are located on the same side of the middle frame of the electronic device; The middle frame corresponding to the volume buttons is reused as the antenna radiator; The middle frame corresponding to the power button is reused as the parasitic branch.

11. The electronic device according to claim 10, characterized in that, The space enclosed by the parasitic branch and the grounding structure is used to accommodate the button body of the power button. The third surface of the grounding structure is recessed in the direction away from the button body.

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