Antenna structure and electronic equipment

Abstract

The invention provides an antenna structure and electronic equipment, and relates to the field of communication. The antenna structure comprises a key, a conductive frame, a first antenna and a second antenna. The first antenna is arranged on the key, the second antenna is arranged on the conductive frame, the key is movably connected with the conductive frame, the first antenna has a first radiation frequency band, and the second antenna has a second radiation frequency band. The first antenna and the second antenna enable the antenna structure to have a larger radiation frequency band, and the structure that the antenna is arranged on the key can save the antenna arrangement space on the conductive frame, thereby facilitating the optimization of the antenna arrangement of the electronic equipment, and increasing the radiation frequency band of the electronic equipment.

Description

Technical Field

[0001] This disclosure relates to the field of communications, and in particular to an antenna structure and electronic device. Background Technology

[0002] Antennas are an indispensable part of communication equipment for wireless communication. Since 5G (The 5th Generation Mobile Communication Technology) networks are widely used in the mobile communication field, communication equipment typically includes multiple antennas to cover the 5G frequency band and improve signal strength.

[0003] In related technologies, multiple antennas are distributed on the mid-frame of the communication device. However, since the mid-frame also has structures such as charging ports, buttons, and speaker openings, the space available for antenna placement on the mid-frame is greatly limited, affecting the radiation frequency band that the communication device can cover. Summary of the Invention

[0004] Therefore, embodiments of this disclosure provide an antenna structure and electronic device that help increase the radiation frequency band of the electronic device.

[0005] In a first aspect, embodiments of this disclosure provide an antenna structure, including a button, a conductive frame, a first antenna, and a second antenna;

[0006] The first antenna is disposed on the button, and the second antenna is disposed on the conductive frame. The button is movably connected to the conductive frame. The first antenna has a first radiation frequency band, and the second antenna has a second radiation frequency band.

[0007] Optionally, the second antenna includes a first radiator and a second radiator arranged side by side, with the two ends of the first radiator connected to the two ends of the second radiator respectively, and the button located on the side of the first radiator away from the second radiator.

[0008] Optionally, the first radiator is provided with a receiving groove, and the button is at least partially located in the receiving groove.

[0009] Optionally, the surface of the first radiator away from the second radiator is an arc surface.

[0010] Optionally, the first radiator has at least two grooves on the side near the second radiator, and the feed point of the second antenna is located between at least two of the grooves.

[0011] Optionally, the first antenna includes an antenna body, a first stub, and a second stub. The antenna body is located in the receiving slot. The first stub and the second stub are respectively connected to the side of the antenna body near the second radiator. The feed point of the first antenna is located in the first stub, and the ground point of the first antenna is located in the second stub.

[0012] Optionally, the distance between the antenna body and the bottom of the receiving groove of the first radiator is 0.5mm-3mm.

[0013] Optionally, the distance between the first branch and the second branch is 10mm-14mm.

[0014] Optionally, the second antenna further includes a third stub, which is connected to the side of the first radiator away from the antenna body, and the feed point of the second antenna is located in the third stub.

[0015] Optionally, the distance between the third branch and the first branch is 3mm-5mm.

[0016] Optionally, the first radiator is provided with a slit, the slit being located between the end of the first radiator and the receiving groove.

[0017] Secondly, embodiments of this disclosure provide an electronic device, the electronic device including the antenna structure described in any of the first aspects above.

[0018] The beneficial effects of the technical solutions provided in this disclosure include at least the following:

[0019] The antenna structure provided in this embodiment includes a first antenna and a second antenna. The first antenna is disposed on a button, and the second antenna is disposed on a conductive frame. The first antenna and the second antenna have a first radiation frequency band and a second radiation frequency band, respectively, thereby giving the antenna structure a wider radiation frequency band. Moreover, the structure of setting the antenna on the button can save antenna arrangement space on the conductive frame, which is beneficial for optimizing the antenna arrangement of electronic devices and increasing the radiation frequency band of electronic devices. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a side view of the antenna structure provided in an embodiment of the present disclosure;

[0022] Figure 2 This is a top view of the antenna structure provided in an embodiment of the present disclosure;

[0023] Figure 3 This is a side view of the antenna structure provided in an embodiment of the present disclosure;

[0024] Figure 4 S-parameter curve of the first antenna provided in the embodiments of this disclosure;

[0025] Figure 5 An efficiency curve of the first antenna provided in an embodiment of this disclosure;

[0026] Figure 6 The S-parameter curve of the second antenna provided in this embodiment of the disclosure;

[0027] Figure 7 An efficiency curve of the second antenna provided in an embodiment of this disclosure.

[0028] The reference numerals in the figure are respectively:

[0029] 1-Button; 2-Conductive frame; 3-First antenna; 4-Second antenna;

[0030] 31-Antenna body; 32-First stub; 33-Second stub; 34-First spring; 35-Second spring; 41-First radiator; 42-Second radiator; 43-Third stub; 44-Groove;

[0031] 411-Receiving groove; 412-Break joint; 413-Limiting groove.

[0032] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0033] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0034] The directional terms used in the embodiments of this disclosure, such as "upper," "lower," and "side," are generally used in the following ways: Figure 1The relative positions shown are based on the given information, and these directional terms are used only to more clearly describe the relationships between structures, not to describe absolute positions. Positions may change when the product is placed in different orientations; for example, "up" and "down" may be interchanged.

[0035] Figure 1 This is a side view schematic diagram of the antenna structure provided in an embodiment of this disclosure. Figure 1 As shown, the antenna structure includes a button 1, a conductive frame 2, a first antenna 3, and a second antenna 4. The first antenna 3 is disposed on the button 1, and the second antenna 4 is disposed on the conductive frame 2. The button 1 and the conductive frame 2 are movably connected. The first antenna 3 has a first radiation frequency band, and the second antenna 4 has a second radiation frequency band.

[0036] The antenna structure provided in this embodiment includes a first antenna 3 and a second antenna 4. The first antenna 3 is disposed on the button 1, and the second antenna 4 is disposed on the conductive frame 2. The first antenna 3 and the second antenna 4 have a first radiation frequency band and a second radiation frequency band, respectively, thereby giving the antenna structure a wider radiation frequency band. Moreover, the structure of setting the antenna on the button 1 can save antenna arrangement space on the conductive frame 2, which is beneficial to optimizing the antenna arrangement of electronic devices and increasing the radiation frequency band of electronic devices.

[0037] To make the technical solutions and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0038] like Figure 1 As shown, the antenna structure provided in this disclosure includes a button 1, a conductive frame 2, a first antenna 3, and a second antenna 4. The first antenna 3 is disposed on the button 1, and the second antenna 4 is disposed on the conductive frame 2. The button 1 is movably connected to the conductive frame 2. The button 1 can be triggered when pressed, and the button 1 includes a metal part that can radiate signals of a specific frequency band when energized, thus enabling the button 1 to simultaneously function as an antenna. The antenna structure on the button 1 saves antenna arrangement space on the conductive frame 2, which is beneficial for optimizing the antenna arrangement of electronic devices and increasing the radiation frequency band of electronic devices.

[0039] The first antenna 3 has a first radiation frequency band, and the second antenna 4 has a second radiation frequency band. The first radiation frequency band includes the L5 radiation frequency band, i.e., 1176.45MHz ± 1.023MHz, and the second radiation frequency band includes the MHB, N78, and N79 radiation frequency bands, i.e., 2110MHz-2170MHz, 3300MHz-3800MHz, and 4400MHz-5000MHz, respectively. The first and second radiation frequency bands of the first antenna 3 and the second antenna 4, respectively, give the antenna structure a wider radiation frequency band. The antenna structure on the button 1 saves antenna arrangement space on the conductive frame 2, which is beneficial for optimizing the antenna arrangement of electronic devices, increasing the radiation frequency band of electronic devices, and improving the signal strength of electronic devices.

[0040] In some embodiments of this disclosure, such as Figure 1 As shown, the second antenna 4 includes a first radiator 41 and a second radiator 42 arranged side by side. The two ends of the first radiator 41 are connected to the two ends of the second radiator 42, respectively. Button 1 is located on the side of the first radiator 41 away from the second radiator 42. The first radiator 41 is located near the outer edge of the conductive frame 2, and the second radiator 42 is located away from the outer edge of the conductive frame 2. The first radiator 41 and the second radiator 42 are generally strip-shaped and arranged longitudinally. One end of the first radiator 41 is connected to one end of the second radiator 42 through a laterally arranged radiator, and the other end of the first radiator 41 is connected to the other end of the second radiator 42 through a laterally arranged radiator, thus forming a roughly ring-shaped second antenna 4. Furthermore, the current directions in the first radiator 41 and the second radiator 42 are opposite, thereby reducing the coupling between the first radiator 41 and the second radiator 42 and improving the signal strength of the second antenna 2. Button 1 is movably connected to the first radiator 41 and can be stretched, extended, or elastically deformed relative to the first radiator 41 to be triggered.

[0041] In some embodiments of this disclosure, such as Figure 1 As shown, the first radiator 41 is provided with a receiving groove 411, and the button 1 is at least partially located in the receiving groove 411, with a gap between the side wall of the button 1 and the side wall of the receiving groove 411. The surface of the button 1 away from the second radiator 42 is slightly higher than the receiving groove 411 to facilitate pressing the button 1. The structure of the first radiator 41 accommodating the button 1 allows the button 1 to be arranged more compactly, thereby reducing the space occupied by the antenna structure.

[0042] Optionally, such as Figure 1As shown, the first antenna 3 includes an antenna body 31, a first stub 32, and a second stub 33. The antenna body 31 is located in a receiving slot 411. The first stub 32 and the second stub 33 are respectively connected to the side of the antenna body 31 near the second radiator 42. The feed point of the first antenna 3 is located at the first stub 32, and the ground point of the first antenna 3 is located at the second stub 33. The antenna body 31 is disposed on the pressed portion of the button 1. The first stub 32 and the second stub 33 both extend along a direction perpendicular to the plane where the antenna body 31 is located, and the first stub 32 and the second stub 33 have the same length. The first stub 32 and the second stub 33 respectively pass through the first radiator 41, thereby electrically connecting to the feed terminal and the ground terminal of the electronic device.

[0043] In some embodiments of this disclosure, such as Figure 1 As shown, the second antenna 4 also includes a third stub 43, which is connected to the side of the first radiator 41 away from the antenna body 31. The feed point of the second antenna 4 is located at the third stub 43. The extension of the third stub 43 is parallel to the first stub 32 and the second stub 33, and the third stub 43 is located between the first radiator 41 and the second radiator 42. The end of the third stub 33 away from the first radiator 41 is connected to the circuit board, thereby feeding the second antenna 4.

[0044] Figure 2 This is a top view schematic diagram of an antenna structure provided in an embodiment of this disclosure. In some embodiments of this disclosure, such as... Figure 2 As shown, the first radiator 41 is provided with a slit 412, which is located between the end of the first radiator 41 and the receiving groove 411. The slit 412 is used to adjust the current distribution in the first radiator 41 and the second radiator 42, thereby reducing the coupling between the first radiator 41 and the second radiator 42 to improve the signal strength of the second antenna 4. For example, the width of the slit 412 is 0.5mm-2.5mm.

[0045] Furthermore, the third stub 43 is close to the end of the first radiator 41 away from the slit 412. In the second antenna 4 fed through the third stub 43, the slit 412 can make the direction of the current in the first radiator 41 opposite to the direction of the current in the second radiator 42, so as to reduce the coupling between the first radiator 41 and the second radiator 42.

[0046] In some embodiments of this disclosure, such as Figure 1As shown, the surface of the first radiator 41 away from the second radiator 42 is curved. Specifically, the first radiator 41 has an arc-shaped bending structure, which increases the area of ​​the surface of the first radiator 41 away from the second radiator 42, thereby increasing the width of the first radiator 41 at the location where the receiving groove 411 is provided, that is, increasing the size of the second antenna 4, thereby adjusting the current distribution of the first radiator 41 at the receiving groove 411, and increasing the radiation efficiency of the second antenna 4 in the MHB, N78, and N79 radiation frequency bands.

[0047] Figure 3 This is a side view schematic diagram of an antenna structure provided for an embodiment of this disclosure. See also the following embodiments of this disclosure: Figure 3 The first radiator 41 has at least two grooves 44 on the side near the second radiator 42, and the feed point of the second antenna 4 is located between the at least two grooves 44. Specifically, the third stub 43 is located between the two grooves 44, and both grooves 44 are opposite to the antenna body 31. The two grooves 44 can adjust the distribution of current in the first radiator 41 after passing through the third stub 43, so that the direction of the current distributed in the first radiator 41 is not parallel to the direction of the current in the antenna body 31, thereby reducing the coupling between the first antenna 3 and the second antenna 4 and avoiding mutual interference between the first antenna 3 and the second antenna 4.

[0048] For example, at least two grooves 44 are circular grooves to change the direction of current flow in the first radiator 41. Alternatively, at least two grooves 44 are rectangular grooves, and the two grooves 44 may have the same or different dimensions, with each groove 44 having a width of 2.4mm-4.5mm.

[0049] Optionally, see Figure 3 The distance 'a' between the antenna body 31 and the bottom of the receiving slot 411 of the first radiator 41 is 0.5mm-3mm. A larger distance 'a' between the antenna body 31 and the bottom of the receiving slot 411 of the first radiator 41 helps reduce the coupling between the first antenna 3 and the second antenna 4. The button 1 can be a virtual button; that is, when the button 1 is pressed, it undergoes only a small deformation, and the distance 'a' between the antenna body 31 and the bottom of the receiving slot 411 of the first radiator 41 does not change significantly. This avoids the distance 'a' between the antenna body 31 and the bottom of the receiving slot 411 of the first radiator 41 decreasing when the button is used, thus preventing any impact on the signal strength of the first antenna 3 and the second antenna 4.

[0050] Preferably, the distance a between the antenna body 31 and the bottom of the receiving groove 411 of the first radiator 41 is 1.5 mm.

[0051] See some examples in this disclosure. Figure 3The distance b between the third stub 43 and the first stub 32 is 3mm-5mm. The larger distance b between the third stub 43 and the first stub 32 can reduce the coupling of the feed current between the third stub 43 and the first stub 32, thereby reducing the mutual interference between the first antenna 3 and the second antenna 4 and improving the signal strength of the antenna structure.

[0052] Preferably, the distance b between the third branch 43 and the first branch 32 is 4 mm.

[0053] Optionally, such as Figure 3 As shown, the distance c between the first stub 32 and the second stub 33 is 10mm-14mm. The larger distance c between the first stub 32 and the second stub 33 can optimize the resonant signal of the first antenna 3.

[0054] Preferably, the distance c between the first branch 32 and the second branch 33 is 12 mm.

[0055] In some embodiments of this disclosure, such as Figure 3 As shown, the first antenna 3 also includes a first spring 34 and a second spring 35. The first spring 34 is electrically connected to the first branch 32 and the circuit board, respectively, and the second spring 35 is electrically connected to the second branch 33 and the circuit board, respectively. When the button 1 is pressed or released, the first spring 32 and the second spring 35 can undergo elastic deformation, thereby preventing the power supply to the first antenna 3 from being affected when the button 1 is triggered.

[0056] In some embodiments of this disclosure, such as Figure 3 As shown, the first antenna 3 also includes a limiting post 36. The limiting post 35 is connected to the opposite ends of the antenna body 31. The side walls of the opposite ends of the receiving groove 411 are provided with limiting grooves 413. The limiting post 36 is located in the limiting groove 413 and can move up and down in the limiting groove 413. The limiting post 36 is used to cooperate with the limiting groove 413 to limit the button 1 in the receiving groove 411 and prevent the button 1 from detaching from the conductive frame 2.

[0057] Figure 4 The S-parameter curve of the first antenna provided in an embodiment of this disclosure is shown. Figure 4 As shown, the first antenna 3 has a return loss of less than -9dB in the 1GHz-1.5GHz frequency band, and the first antenna 3 has a large overall bandwidth.

[0058] Figure 5 An efficiency curve of the first antenna 3 provided in an embodiment of this disclosure. Figure 3 As shown, the first antenna 3 has a radiation efficiency of over -10dB in the 1GHz-1.5GHz frequency band, and the first antenna 3 has low performance loss and high signal strength in the L5 frequency band.

[0059] Figure 6 The S-parameter curve of the second antenna provided in this embodiment of the disclosure is shown below. Figure 6 As shown, the second antenna 4 has a return loss of less than -6dB in the MHB, N78, and N79 radiation bands, and the second antenna 4 has a large overall bandwidth.

[0060] Figure 7 The efficiency curve of the second antenna provided in this embodiment of the disclosure is shown in the figure. Figure 7 As shown, the second antenna 4 has a radiation efficiency of -4dB in the MHB, N78, and N79 radiation bands. The second antenna 4 has low performance loss and high signal strength in the MHB, N78, and N79 radiation bands.

[0061] On the other hand, this disclosure also provides an electronic device that includes any of the antenna structures described above.

[0062] It should be noted that the electronic device provided in this embodiment may be, but is not limited to, a mobile phone, a remote control, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III), or an MP4 player (Moving Picture Experts Group Audio Layer IV). This electronic device may also be referred to as a user device, a portable terminal, a laptop terminal, or other names. Taking a mobile phone as an example, the antenna structure is located on the side of the phone's frame where the side buttons are located, and the first antenna 3 and the second antenna 4 are electrically connected to the phone's circuit board. The first antenna 3 is located on the side buttons of the phone, increasing the number of antennas arranged on the frame, which is beneficial for improving the signal strength of the horizontally oriented phone.

[0063] In the electronic device provided in this embodiment, the antenna structure includes a first antenna 3 and a second antenna 4. The first antenna 3 is disposed on the button 1, and the second antenna 4 is disposed on the conductive frame 2. The first antenna 3 and the second antenna 4 respectively have a first radiation frequency band and a second radiation frequency band, thereby giving the antenna structure a wider radiation frequency band. Moreover, the structure of setting the antenna on the button 1 can save antenna arrangement space on the conductive frame 2, which is beneficial to optimizing the antenna arrangement of the electronic device and increasing the radiation frequency band of the electronic device.

[0064] It should be noted that in this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0065] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0066] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0067] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0068] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this disclosure.

[0069] The above description is merely an embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. An antenna structure, characterized in that, It includes a button (1), a conductive frame (2), a first antenna (3), and a second antenna (4); The first antenna (3) is disposed on the button (1), and the second antenna (4) is disposed on the conductive frame (2). The button (1) is movably connected to the conductive frame (2). The first antenna (3) has a first radiation frequency band, and the second antenna (4) has a second radiation frequency band.

2. The antenna structure according to claim 1, characterized in that, The second antenna (4) includes a first radiator (41) and a second radiator (42) arranged side by side. The two ends of the first radiator (41) are respectively connected to the two ends of the second radiator (42). The button (1) is located on the side of the first radiator (41) away from the second radiator (42).

3. The antenna structure according to claim 2, characterized in that, The first radiator (41) is provided with a receiving groove (411), and the button (1) is at least partially located in the receiving groove (411).

4. The antenna structure according to claim 2, characterized in that, The surface of the first radiator (41) away from the second radiator (42) is an arc surface.

5. The antenna structure according to claim 2, characterized in that, The first radiator (41) has at least two grooves (44) on the side near the second radiator (42), and the feed point of the second antenna (4) is located between at least two of the grooves (44).

6. The antenna structure according to claim 3, characterized in that, The first antenna (3) includes an antenna body (31), a first branch (32) and a second branch (33). The antenna body (31) is located in the receiving slot (411). The first branch (32) and the second branch (33) are respectively connected to the side of the antenna body (31) near the second radiator (42). The feed point of the first antenna (3) is located in the first branch (32), and the ground point of the first antenna (3) is located in the second branch (33).

7. The antenna structure according to claim 6, characterized in that, The distance between the antenna body (31) and the bottom of the receiving groove (411) of the first radiator (41) is 0.5mm-3mm.

8. The antenna structure according to claim 6, characterized in that, The distance between the first branch (32) and the second branch (33) is 10mm-14mm.

9. The antenna structure according to claim 6, characterized in that, The second antenna (4) also includes a third branch (43), which is connected to the side of the first radiator (41) away from the antenna body (31), and the feed point of the second antenna (4) is located in the third branch (43).

10. The antenna structure according to claim 9, characterized in that, The distance between the third branch (43) and the first branch (32) is 3mm-5mm.

11. The antenna structure according to claim 5, characterized in that, The first radiator (41) is provided with a slit (412), which is located between the end of the first radiator (41) and the receiving groove (411).

12. An electronic device, characterized in that, The electronic device includes the antenna structure according to any one of claims 1-11.

Images