CN117410716A - Antenna assembly and mobile terminal - Google Patents

Abstract

This application provides an antenna assembly and a mobile terminal. The antenna component is applied to WWAN version mobile terminals or WLAN version mobile terminals, that is, the structure of the same antenna component can be applied to different versions of mobile terminals. When the antenna assembly is used in the WLAN version of the mobile terminal, the antenna assembly will transmit and receive signals in the WiFi 2.4G band, WiFi 5G band and GPS band in the WWAN version. The first antenna radiator is only used to transmit and receive signals in the GPS band. The other is used The second antenna radiator is used to send and receive signals in the WiFi 2.4G frequency band and WiFi 5G frequency band. The antenna assembly provided by this application can reduce the difficulty of debugging the three frequency bands of GPS, WiFi 2.4G and WiFi 5G on one antenna radiator, and use the first antenna radiator and the second antenna radiator to jointly realize GPS frequency band, WiFi 2.4G frequency band and WiFi 5G frequency band signal transmission to improve the radio frequency performance of the corresponding antenna.

Description

Antenna components and mobile terminals

Technical field

The present invention relates to the field of antenna technology, and in particular, to an antenna assembly and a mobile terminal.

Background technique

Mobile terminals, such as tablets or smart watches, can be roughly divided into two versions, namely the WLAN (Wireless Local Area Networks, wireless LAN) version and the WWAN (Wireless Wide Area Network, wireless wide area network) version. Among them, the WLAN version means that it can only connect to the Internet through WiFi, and the WWAN version means that it can connect to the Internet through WiFi connection and cellular data. For the WLAN version of the mobile terminal, there is only one GPS/WiFi 2.4G/WiFi 5G three-in-one antenna, while the WWAN version of the mobile terminal not only has a GPS/WiFi 2.4G/WiFi 5G three-in-one antenna, but also other 2G/3G support /4G/5G frequency band and other multiple antennas.

In the WLAN version of mobile terminals, signals are mainly transmitted through GPS or WiFi, but currently the three-in-one GPS/WiFi2.4G/WiFi 5G are integrated on the same antenna, making debugging difficult; and for this antenna, it needs to be It is compatible with GPS frequency band or WiFi frequency band, so the antenna performance of each frequency band is reduced.

Contents of the invention

Embodiments of the present application provide an antenna assembly and a mobile terminal. The antenna assembly is applied to a WWAN version mobile terminal or a WLAN version mobile terminal. When the antenna assembly is applied to the WLAN version of the mobile terminal, the antenna assembly can reduce the difficulty of debugging the three frequency bands of GPS band, WiFi 2.4G band and WiFi 5G band on one antenna radiator, using the first antenna radiator and The second antenna radiator jointly realizes signal transmission in the GPS frequency band, WiFi 2.4G frequency band and WiFi 5G frequency band, improving the radio frequency performance of the corresponding antenna.

An embodiment of the present application provides an antenna component, which is applied to a WWAN version mobile terminal or a WLAN version mobile terminal. The antenna component includes:

The metal middle frame is provided with multiple fracture seams, and the multiple fracture seams divide the metal middle frame into a first antenna radiator and a second antenna radiator;

When the antenna assembly is used in a WWAN version of a mobile terminal, the first antenna radiator is used to send and receive signals in the GPS band, WiFi 2.4G band, and WiFi 5G band;

When the antenna assembly is used in a WLAN version of a mobile terminal, the first antenna radiator is used to transmit and receive signals in the GPS frequency band, and the second antenna radiator is used to transmit and receive signals in the WiFi 2.4G frequency band and WiFi 5G frequency band.

In some embodiments, the metal middle frame includes a top edge and a bottom edge that are oppositely arranged along a first direction, a first side and a second side that are oppositely arranged along a second direction, and the first direction is perpendicular to the second direction; An antenna radiator and a second antenna radiator are provided on the top side.

In some embodiments, the first antenna radiator and the second antenna radiator extend along the second direction, and the first antenna radiator and the second antenna radiator are sequentially distributed along the second direction; the first antenna radiator has a first connection The first ground point is close to the second antenna radiator, and the first feed point is far away from the second antenna radiator.

In some embodiments, the second antenna radiator has a second ground point and a second feed point. The second ground point is close to the first antenna radiator, and the second feed point is far away from the first antenna radiator.

In some embodiments, the first antenna radiator is closer to the first side than the second antenna radiator; the distance between the first antenna radiator and the first side is less than or equal to 20 mm.

In some embodiments, the width of the break between the first antenna radiator and the second antenna radiator is less than or equal to 2 mm.

In some embodiments, the length of the first antenna radiator is greater than or equal to 20 mm, and the length of the second antenna radiator is greater than or equal to 20 mm.

In some embodiments, the antenna types corresponding to the first antenna radiator and the second antenna radiator are both IFA antennas.

An embodiment of the present application also provides a mobile terminal, including the above antenna assembly.

In some embodiments, the mobile terminal further includes an insulating middle frame, and the metal middle frame is disposed on the inner surface of the insulating middle frame.

Embodiments of the present application provide an antenna component and a mobile terminal. The antenna component is applied to a WWAN version mobile terminal or a WLAN version mobile terminal. That is, the structure of the same antenna component can be applied to different versions of mobile terminals. The antenna assembly includes a metal middle frame. The metal middle frame is provided with a plurality of fractures. The plurality of fractures divide the metal middle frame into a first antenna radiator and a second antenna radiator. When the antenna assembly is applied to a WLAN version of a mobile terminal, the antenna assembly will transmit and receive signals in the WiFi 2.4G band, WiFi 5G band and GPS band in the WWAN version. The first antenna radiator is only used to transmit and receive signals in the GPS band. The second The antenna radiator is used to send and receive signals in the WiFi 2.4G frequency band and WiFi 5G frequency band. The antenna assembly provided by this application can reduce the difficulty of debugging the three frequency bands of GPS, WiFi 2.4G and WiFi 5G on one antenna radiator, and use the first antenna radiator and the second antenna radiator to jointly realize GPS frequency band, WiFi 2.4G frequency band and WiFi 5G frequency band signal transmission to improve the radio frequency performance of the corresponding antenna.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present application more clearly, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

FIG. 1 is a schematic structural diagram of an antenna arrangement in the related technology provided by the embodiment of the present application.

Figure 2 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present application.

Figure 3 is a schematic structural diagram of an antenna assembly provided by an embodiment of the present application.

Figure 4 is a return loss characteristic curve of the GPS radio frequency signal section of the antenna assembly provided by the embodiment of the present application and the antenna assembly in the related art.

Figure 5 is an antenna efficiency curve of the GPS radio frequency signal section of the antenna assembly provided by the embodiment of the present application and the antenna assembly in the related art.

Figure 6 is a return loss characteristic curve of the WiFi2.4G/WiFi5G radio frequency signal section of the antenna assembly provided by the embodiment of the present application and the antenna assembly in related technologies.

Figure 7 is an antenna efficiency curve of the WiFi2.4G/WiFi5G radio frequency signal section of the antenna assembly provided by the embodiment of the present application and the antenna assembly in related technologies.

FIG. 8 is a partial enlarged view of position A in FIG. 3 .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of this application.

Mobile terminals, such as tablets or smart watches, can be roughly divided into two versions, namely the WLAN (Wireless Local Area Networks, wireless LAN) version and the WWAN (Wireless Wide Area Network, wireless wide area network) version. Among them, the WLAN version means that it can only connect to the Internet through Wi-Fi, and the WWAN version means that it can connect to the Internet through WiFi connection and cellular data. For the WLAN version of the mobile terminal, there is an antenna used to send and receive signals in the WiFi2.4G frequency band and WiFi5G frequency band, that is, a three-in-one antenna; for the WWAN version of the mobile terminal, there is not only the above-mentioned three-in-one antenna, but also other Supports multiple antennas for transmitting and receiving signals in the 2G frequency band, 3G frequency band, 4G frequency band and 5G frequency band.

During the manufacturing process, both versions of the existing mobile terminal use the same metal middle frame structure. In the WLAN version of mobile terminals, signals are mainly transmitted through GPS or WiFi, but currently the three-in-one GPS/WiFi 2.4G/WiFi5G are integrated on the same antenna, making debugging difficult; and for this antenna, it needs to be It is compatible with GPS band or WiFi band, so the performance of each band is degraded.

If an antenna radiator is added to the original antenna component, whether it supports the WWAN version or the WLAN version of the antenna, the above three-in-one antenna radiator will be split into multiple antenna radiators to support multi-band signals respectively. This will undoubtedly It increases the cost and occupies space inside the mobile terminal, which is not conducive to the thinning of the mobile terminal.

However, the WLAN version of the mobile terminal does not need to support sending and receiving signals in the 2G frequency band, 3G frequency band, 4G frequency band and 5G frequency band, even if the WWAN version and the WLAN version use the same metal middle frame structure. Correspondingly, in the WLAN version of the mobile terminal, the antenna radiator that supports sending and receiving signals in the 2G frequency band, 3G frequency band, 4G frequency band and 5G frequency band does not need to be used, and becomes a redundant antenna radiator.

Specifically, please refer to FIG. 1 , which is a schematic structural diagram of an arrangement of antenna radiators in the related art provided by an embodiment of the present application. The structure of the antenna assembly in the mobile terminal of the WWAN version and the WLAN version is the same, and the antenna assembly includes a plurality of antenna radiators. The WWAN version of the mobile terminal uses at least 8 antenna radiators 1: ANT1, ANT2, ANT3, ANT4, ANT5, ANT6, ANT7 and ANT8; the WLAN version of the mobile terminal uses only 1 antenna radiator: ANT8. Therefore, there are unused antenna radiators on the metal middle frame of the WLAN version of the mobile terminal: ANT1, ANT2, ANT3, ANT4, ANT5, ANT6, and ANT7. Therefore, in the WLAN version of the mobile terminal, the redundant antenna radiators are used , the three-in-one antenna radiator covering the WiFi 2.4G frequency band, WiFi 5G frequency band and GPS frequency band is divided into two antenna radiators, reducing the difficulty of debugging the three frequency bands of GPS/WiFi 2.4G/WiFi 5G on one antenna. It can also improve the performance of the antennas corresponding to the two antenna radiators.

Therefore, this application provides an antenna assembly and a mobile terminal, which will be analyzed in detail below with reference to the accompanying drawings.

Please refer to Figures 2 and 3. Figure 2 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present application, and Figure 3 is a schematic structural diagram of an antenna assembly provided by an embodiment of the present application.

The antenna assembly 20 provided in this application is applied to the mobile terminal 100 of the WWAN version or the mobile terminal 100 of the WLAN version. The antenna assembly 20 includes a metal middle frame 10 which is provided with a plurality of fractures 30 . The plurality of fractures 30 divide the metal middle frame 10 into at least a first antenna radiator 21 and a second antenna radiator 22 . For example, the metal middle frame 10 has three fractures 30, and the metal middle frame 10 is divided into a first antenna radiator 21 and a second antenna radiator 22, so as to separate the first antenna radiator 21 and the second antenna radiator 22. , other structures of the metal middle frame 10 are physically isolated from each other.

When the antenna assembly 20 is applied to the WWAN version of the mobile terminal 100, the first antenna radiator 21 is used to send and receive signals in the GPS frequency band, WiFi 2.4G frequency band and WiFi 5G frequency band.

When the antenna assembly 20 is applied to the WLAN version of the mobile terminal 100, the first antenna radiator 21 is used to transmit and receive signals in the GPS frequency band, and the second antenna radiator 22 is used to transmit and receive signals in the WiFi 2.4G frequency band and WiFi 5G frequency band.

The first antenna radiator 21 and the second antenna radiator 22 can be made of metal materials such as copper, aluminum, gold or silver. The first antenna radiator 21 and the second antenna radiator 22 are both used as antenna radiation for the mobile terminal 100 unit to receive RF signals and to transmit RF signals.

The mobile terminal 100 includes a device casing and functional components located inside the device casing. The device casing may include a back cover, a panel (not shown from the perspective of the figure) and a middle frame. The back cover and the panel are arranged oppositely. The frame is connected between the front panel and the rear cover to form a complete shell structure.

Functional components can include screens, batteries, processors, and memory, among others. The processor is used to control overall operations of the mobile terminal 100, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processor may include one or more processing cores. The processor uses various interfaces and lines to connect various parts of the entire mobile terminal 100, by running or executing instructions, programs, code sets or instruction sets stored in the memory, and calling The data stored in the memory performs various functions of the mobile terminal 100 and processes the data.

The memory is configured to store various types of data to support operations at the mobile terminal 100 . Examples of these data include instructions for any application or method operating on the mobile terminal 100, contact data, phonebook data, messages, pictures, videos, etc. Memory 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 memory Read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The screen may be a touch screen. The screen is installed on the panel and is electrically connected to the processor for receiving input signals from the user. The battery is electrically connected to the processor to power the mobile terminal 100 .

The frequency bands of the GPS provided by this application can be divided into L1 frequency band and L2 frequency band. The L1 frequency band is mainly for civilian use, with a center frequency of 1575.42MHz; the L2 frequency band is mainly for military use, with a center frequency of 1227.6MHz. The first antenna radiator 21 of the antenna assembly 20 provided in the embodiment of the present application is a GPS antenna radiator that supports the L1 frequency band.

Among the WiFi 2.4G frequency band and WiFi 5G frequency band provided by this application, in the WiFi 2.4G frequency band, the available bandwidth is 100MHz, with a range of 2.4 to 2.5GHz (2400-2500MHz); in the WiFi 5G frequency band, the available bandwidth is 150MHz, with a range of 5725 -5875MHz.

The metal middle frame 10 can be used as a supporting structure or as a structure of an antenna radiator to realize functional reuse and thereby save space. The metal middle frame 10 is generally a rectangular frame structure with multiple sides. In some cases, the antenna assembly 20 is disposed on one side. In other cases, the first antenna radiator 21 of the antenna assembly 20 is disposed On one side, a second antenna radiator 22 is provided on the other side. It is worth noting that the positions of the first antenna radiator 21 and the second antenna radiator 22 can be set according to actual conditions to achieve the best antenna radiation effect.

However, as explained in the related art, both versions of the existing mobile terminal 1 adopt the same metal middle frame structure, but the WLAN version of the mobile terminal does not need to support sending and receiving signals in the 2G frequency band, 3G frequency band, 4G frequency band and 5G frequency band. , even if the WWAN version and the WLAN version adopt the same metal middle frame structure, correspondingly, in the WLAN version of the mobile terminal, the antenna radiator that supports sending and receiving signals in the 2G frequency band, 3G frequency band, 4G frequency band and 5G frequency band does not need to be used. It becomes a redundant antenna radiator. In the embodiment of the present application, without changing the metal middle frame 10 of the WWAN version and the WLAN version of the mobile terminal 100, when the antenna component 20 is applied to the WLAN version of the mobile terminal 100, the WiFi 2.4G frequency band is transmitted and received in the WWAN version. , WiFi 5G band and GPS band signals, the first antenna radiator 21 is only used to send and receive signals in the GPS band. The second antenna radiator 22 can use a redundant antenna radiator, such as the antenna radiator ANT3 in Figure 1. As the first antenna radiator 21 and the antenna radiator ANT8 serve as the second antenna radiator 22, there is no need to add a new antenna radiator, further saving costs.

Please refer to Figures 4 and 5. Figure 4 is a return loss characteristic curve of the GPS radio frequency signal section of the antenna assembly provided by the embodiment of the present application and the antenna assembly in the related art. Figure 5 is the return loss characteristic curve of the antenna assembly provided by the embodiment of the present application and the antenna assembly in the related art. Antenna efficiency curve of the GPS radio frequency signal segment of the antenna assembly in the related art.

By comparing with the GPS return loss characteristics (S11) parameters of the relevant antenna components, it can be found that the relevant antenna components refer to the three-in-one antenna that supports GPS/WiFi 2.4G/WiFi 5G. As shown in Figure 4, L1 is the GPS return loss characteristic curve of the relevant antenna component, and L2 is the GPS return loss characteristic curve of the antenna component 20 provided in the embodiment of the present application. Since the relevant antenna assembly must take into account both the WiFi 2.4G and WiFi 5G frequency bands, it cannot be adjusted to the deepest resonance point like the first antenna radiator 21 in the antenna assembly 20 provided in the embodiment of the present application. As shown in Figure 5, L1 is the antenna efficiency curve of the GPS radio frequency signal section of the relevant antenna component, and L2 is the antenna efficiency curve of the GPS radio frequency signal section of the antenna assembly 20 provided by the embodiment of the present application. By comparing with the GPS antenna radiation efficiency of the related antenna components, it can be found that the antenna component 20 provided in the embodiment of the present application improves the radiation efficiency by 1 dB compared with the related antenna components.

Please refer to Figure 6 and Figure 7 . Figure 6 is the return loss characteristic curve of the WiFi 2.4G/WiFi 5G radio frequency signal section of the antenna assembly provided by the embodiment of the present application and the antenna assembly in the related technology. Figure 7 is the return loss characteristic curve of the antenna assembly provided by the embodiment of the present application. Antenna efficiency curves for the WiFi 2.4G/WiFi 5G radio frequency signal segment of the provided antenna assembly and the antenna assembly in related technologies.

By comparing with the WiFi 2.4G/WiFi 5G return loss characteristics (S11) characteristic parameters of the relevant antenna components, it can be found that the relevant antenna components refer to the three-in-one antenna that supports GPS/WiFi 2.4G/WiFi 5G. As shown in Figure 6, L1 is the WiFi 2.4G/WiFi 5G return loss characteristic curve of the relevant antenna component, and L2 is the WiFi 2.4G/WiFi 5G return loss characteristic curve of the antenna component 20 provided in the embodiment of the present application. Since the related antenna component must take into account the GPS frequency band, the antenna component 20 provided in the embodiment of the present application has a deeper resonance than the related antenna component. As shown in Figure 7, L1 is the antenna efficiency curve of the WiFi2.4G/WiFi 5G radio frequency signal section of the relevant antenna component, and L2 is the antenna efficiency curve of the WiFi2.4G/WiFi 5G radio frequency signal section of the antenna assembly 20 provided in the embodiment of the present application. By comparing with the WiFi 2.4G/WiFi 5G antenna radiation efficiency of related antenna components, it can be found that the antenna component 20 provided in the embodiment of the present application improves the radiation efficiency by about 1 dB compared with the related antenna components.

The embodiments of the present application provide an antenna component 20, a metal middle frame 10 and a mobile terminal 100. The antenna component 20 is applied to the mobile terminal 100. The mobile terminal 100 includes a metal middle frame 10. The antenna component 20 is formed on the metal middle frame 10. . The antenna assembly 20 includes a first radiator and a second antenna radiator 22. The electromagnetic wave signals sent and received by the first antenna radiator 21 cover the GPS frequency band, and the electromagnetic wave signals sent and received by the second antenna radiator 22 cover the WiFi 2.4G frequency band and In the WiFi 5G frequency band, the first antenna radiator 21 and the second antenna radiator 22 are isolated from each other. It can be seen that the antenna assembly 20 divides the three-in-one antenna radiator covering the WiFi 2.4G frequency band, WiFi 5G frequency band and GPS frequency band into two antenna radiators, reducing the difficulty of realizing GPS/WiFi 2.4G/WiFi on one antenna. The difficulty of debugging the three 5G frequency bands can also improve the performance of the antennas corresponding to the two antenna radiators.

In some embodiments, please continue to refer to FIG. 2, FIG. 3 and FIG. 8. FIG. 8 is a partial enlarged view of A in FIG. 3. The metal middle frame 10 includes a plurality of sides connected in sequence. The metal middle frame 10 includes a top edge 11 and a bottom edge 12 arranged oppositely along the first direction Y, and a first side 13 and a second side 14 arranged oppositely along the second direction X. The first direction Y and the second direction vertical. The first antenna radiator 21 and the second antenna radiator 22 are formed on the top edge 11 . When the mobile terminal 100 is a tablet, the camera of the mobile terminal 100 is also disposed at a corresponding position on the top side 11 .

In foreseeable scenarios, the mobile terminal 100 is mostly used as a tablet in landscape mode. When the mobile terminal 100 is placed in landscape orientation, the top edge 11 of the mobile terminal 100 usually faces the sky, the camera is located in the middle of the top edge, the charging port is located in the middle of the second side 14 , and the bottom edge 12 of the mobile terminal 100 faces the ground. When the display plane of the mobile terminal 100 faces the user, that is, when the back cover faces away from the user, the first side 13 is located on the left side of the user, and the second side 14 is located on the right side of the user. At this time, the first antenna radiator 21 and the second antenna radiator 22 are not blocked, and the effect of transmitting and receiving signals in each frequency band is good.

The first antenna radiator 21 and the second antenna radiator 22 extend along the second direction X, and the first antenna radiator 21 and the second antenna radiator 22 are sequentially distributed along the second direction X. The first antenna radiator 21 has a first ground point and a first feed point. The first ground point is close to the second antenna radiator 22 , and the first feed point is far away from the second antenna radiator 22 , so that the first antenna radiator 21 is isolated from the second antenna radiator 22 . Since the first ground point of the first antenna radiator 21 is close to the second antenna radiator 22, the first ground point serves to isolate the radio frequency signals sent and received by the second antenna radiator 22, so that the first antenna radiator 21 and the second antenna radiator 22 are connected. The two antenna radiators 22 are isolated, so the first antenna radiator 21 and the second antenna radiator 22 will not interfere with each other during operation. At the same time, there is a gap between the first antenna radiator 21 and the second antenna radiator 22 to create physical isolation, and again avoid mutual interference between the first antenna radiator 21 and the second antenna radiator 22.

The first antenna radiator 21 has a first end 211 and a second end 212 opposite along the second direction X. The first end 211 is close to the first side 13 and the second end 212 is close to the second side 14 , a grounding point and a feeding point of the first antenna radiator 21 are provided between the first end 211 and the second end 212. The grounding point of the first antenna radiator 21 is close to the second side 14. The first antenna radiates The feed point of the body 21 is close to the first side 13 .

The second antenna radiator 22 has a second ground point and a second feed point. The second ground point is close to the first antenna radiator 21 , and the second feed point is far away from the first antenna radiator 21 . The second antenna radiator 22 extends along the second direction X. The second antenna radiator 22 has a third end 221 and a fourth end 222 opposite along the second direction 21. The fourth end 222 is close to the second side 14. The third end 221 may be provided with a grounding point of the second antenna radiator 22. The second antenna is provided between the third end 221 and the fourth end 222. Feed point of radiator 22. Since the ground point of the first antenna radiator 21 is close to the ground point of the second antenna radiator 22, the second ground point serves to isolate the radio frequency signals sent and received by the first antenna radiator 21, so the first antenna radiator 21 and The second antenna radiators 22 will not interfere with each other during operation.

In some embodiments, the distance between the break 30 between the second end 212 and the third end 221 is greater than 0.5 mm and less than or equal to 2 mm. It can be understood that the ground point of the first antenna radiator 21 is close to the second antenna radiator 22 , that is, the ground point of the first antenna radiator 21 is close to the second end 212 , and the ground point of the second antenna radiator 22 is close to the second end 212 . It is close to the first antenna radiator 21 , that is, the ground point of the second antenna radiator 22 is close to the third end 221 . Since the ground points of the first antenna radiator 21 and the second antenna radiator 22 are close to each other, the first antenna radiator 21 and the second antenna radiator 22 will not interfere with each other during operation. At the same time, there is a gap between the first antenna radiator 21 and the second antenna radiator 22 to create physical isolation and avoid mutual interference between the first antenna radiator 21 and the second antenna radiator 22 . However, since the metal middle frame 10 also needs to play a supporting role, that is, it needs to ensure strength, the distance between the second end 212 and the third end 221 is less than or equal to 2 mm, which can not only play a role in physical isolation, but also It will not affect the strength of the metal middle frame 10 and reduce the reliability, that is, to overcome the problem that the distance between the second end 212 and the third end 221 is too small, which is not conducive to the radiation effect of the antenna assembly 20, and the distance is too wide and the reliability is reduced. , causing easy bending and affecting the appearance of the mobile terminal 100 .

In some embodiments, the first antenna radiator 21 is closer to the first side 13 than the second antenna radiator 22; the distance between the first antenna radiator 21 and the first side 13 is less than or equal to 20 mm, so as to further The radiation performance of the antenna assembly 20 is thereby improved. It can be understood that no matter whether the mobile terminal 100 is placed in landscape orientation or portrait orientation, there will be no obstruction when the first antenna radiator 21 and the second antenna radiator 22 are located on the top edge 11 closer to the first side 13 . For example, in some scenarios, when the mobile terminal 100 is placed horizontally on a desktop, the top edge 11 usually faces the sky. At this time, the first antenna radiator 21 and the second antenna radiator 22 are not blocked and can transmit and receive various signals. The signal effect of the frequency band is good; in other scenarios, when the mobile terminal 100 is held vertically, the first antenna radiator 21 and the second antenna radiator 22 are located in the upper half of the mobile terminal and are not easily blocked by the hand. The effect of sending and receiving signals in various frequency bands is good.

In some embodiments, the length of the first antenna radiator 21 is greater than or equal to 20 mm, and the length of the second antenna radiator 22 is greater than or equal to 20 mm. The widths of the first antenna radiator 21 and the second antenna radiator 22 are both in the range of 2mm to 3mm, and the lengths of the first antenna radiator 21 and the second antenna radiator 22 are both greater than or equal to 20mm, ensuring the maximum strength of the antenna assembly 20 Radiation efficiency. Of course, different antenna frequency bands require different radiator lengths, and the width and length of the first antenna radiator 21 and the second antenna radiator 22 also depend on the position between the antenna assembly 20 and other internal components of the mobile terminal 100 The relationship, and the degree of interference caused by other internal components of the mobile terminal 100 to the antenna assembly 20, those skilled in the art can set the length and width of the first antenna radiator 21 and the second antenna radiator 22 according to actual conditions.

In some embodiments, the antenna types corresponding to the first antenna radiator 21 and the second antenna radiator 22 are both IFA antennas (Inverted-F antenna, inverted F antenna). Both the first antenna radiator 21 and the second antenna radiator 22 are strip structures extending along the second direction X, and both the first antenna radiator 21 and the second antenna radiator 22 can be in the IFA form. The antenna design makes it easier to control and debug the antenna without requiring a lot of matching to tune the impedance.

Please continue to refer to Figures 2 and 3. This application also provides a metal middle frame 10 for use in the mobile terminal 100. The metal middle frame is provided with a plurality of fractures 30 . The plurality of fractures 30 divide the metal middle frame 10 into at least a first antenna radiator 21 and a second antenna radiator 22 . For example, the metal middle frame 10 has three fractures 30, and the metal middle frame 10 is divided into a first antenna radiator 21 and a second antenna radiator 22, so as to separate the first antenna radiator 21 and the second antenna radiator 22. It is physically isolated from other structures of the metal middle frame 10 .

When the antenna assembly 20 is applied to the WWAN version of the mobile terminal 100, the first antenna radiator 21 is used to send and receive signals in the GPS frequency band, WiFi 2.4G frequency band and WiFi 5G frequency band.

When the antenna assembly 20 is applied to the WLAN version of the mobile terminal 100, the first antenna radiator 21 is used to transmit and receive signals in the GPS frequency band, and the second antenna radiator 22 is used to transmit and receive signals in the WiFi 2.4G frequency band and WiFi 5G frequency band.

It should be noted that the metal middle frame 10 in the embodiment of the present application is the metal middle frame 10 in any of the above embodiments. Therefore, all the same beneficial effects are achieved and will not be described again in this embodiment.

An embodiment of the present application also provides a mobile terminal 100. The mobile terminal 100 includes the above-mentioned metal middle frame 10 or the above-mentioned antenna assembly 20.

It should be noted that the metal middle frame 10 or the antenna assembly 20 in the embodiment of the present application is the metal middle frame 10 or the antenna assembly 20 in any of the above embodiments. Since the mobile terminal 100 has the above-mentioned metal middle frame 10 or antenna assembly 20, it has all the same beneficial effects, which will not be described again in this embodiment.

In some embodiments, the mobile terminal 100 further includes an insulating middle frame, and the metal middle frame 10 is disposed on the inner surface of the insulating middle frame to protect, prevent touch, and prevent dirt.

The antenna assembly 20 and the mobile terminal 100 provided by the embodiment of the present application are applied to the WWAN version of the mobile terminal 100 or the WLAN version of the mobile terminal 100. That is, the structure of the same antenna assembly 20 can be applied to different versions of the mobile terminal 100. . The antenna assembly 20 includes a metal middle frame 10 . The metal middle frame 10 is provided with a plurality of fractures 30 . The plurality of fractures 30 divide the metal middle frame 10 into a first antenna radiator 21 and a second antenna radiator 22 . When the antenna assembly 20 is applied to the WLAN version of the mobile terminal 100, the first antenna radiator 21 is only used to transmit and receive signals in the GPS frequency band, and the second antenna radiator 22 is used to transmit and receive signals in the WiFi 2.4G frequency band and WiFi 5G frequency band. The antenna assembly 20 provided by this application can reduce the difficulty of debugging the three frequency bands of GPS band, WiFi 2.4G band and WiFi 5G band on one antenna radiator, using the first antenna radiator 21 and the second antenna radiator 22 Jointly realize signal transmission in the GPS frequency band, WiFi 2.4G frequency band and WiFi 5G frequency band, improving the radio frequency performance of the corresponding antennas.

In the above embodiments, each embodiment is described with its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

In the description of this application, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more features.

The antenna assembly and mobile terminal provided by the embodiments of the present application have been introduced in detail above. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present application. In summary, the content of this description should not be understood as a limitation of the present application.

Claims (10)

1. An antenna assembly for use with a WWAN version of a mobile terminal or a WLAN version of a mobile terminal, the antenna assembly comprising:

the metal middle frame is provided with a plurality of fractures, and the fractures divide the metal middle frame into a first antenna radiator and a second antenna radiator;

when the antenna assembly is applied to a mobile terminal of a WWAN version, the first antenna radiator is used for receiving and transmitting signals of a GPS frequency band, a WiFi2.4G frequency band and a WiFi5G frequency band;

when the antenna assembly is applied to a mobile terminal in a WLAN version, the first antenna radiator is used for receiving and transmitting signals of a GPS frequency band, and the second antenna radiator is used for receiving and transmitting signals of a WiFi2.4G frequency band and a WiFi5G frequency band.

2. The antenna assembly of claim 1, wherein the metal center includes top and bottom edges disposed opposite each other in a first direction, and first and second side edges disposed opposite each other in a second direction, the first direction being perpendicular to the second direction; the first antenna radiator and the second antenna radiator are arranged on the top edge.

3. The antenna assembly of claim 2, wherein the first antenna radiator and the second antenna radiator extend along the second direction, the first antenna radiator and the second antenna radiator being distributed sequentially along the second direction; the first antenna radiator has a first ground point and a first feed point, the first ground point is close to the second antenna radiator, and the first feed point is far away from the second antenna radiator.

4. The antenna assembly of claim 3 wherein the second antenna radiator has a second ground point and a second feed point, the second ground point being proximate the first antenna radiator and the second feed point being remote from the first antenna radiator.

5. The antenna assembly of claim 2, wherein the first antenna radiator is closer to the first side than the second antenna radiator; the distance between the first antenna radiator and the first side edge is less than or equal to 20mm.

6. The antenna assembly of any one of claims 1 to 5, wherein a width of a break between the first antenna radiator and the second antenna radiator is 2mm or less.

7. The antenna assembly of any one of claims 1 to 5, wherein the length of the first antenna radiator is 20mm or more and the length of the second antenna radiator is 20mm or more.

8. The antenna assembly of any one of claims 1-5, wherein the antenna types corresponding to the first antenna radiator and the second antenna radiator are IFA antennas.

9. A mobile terminal comprising an antenna assembly according to any of claims 1 to 8.

10. The mobile terminal of claim 9, further comprising an insulating center, the metal center being disposed on an inner surface of the insulating center.