An antenna assembly and a terminal device

Abstract

The present disclosure relates to an antenna assembly and a terminal device. The antenna assembly comprises: a conductive frame, a circuit board and a metal conductor; the metal conductor is connected to a feeding point on the circuit board at one end and connected to a switch assembly on the circuit board and the conductive frame at the other end, the switch assembly is used for adjusting a radiation frequency band of the antenna assembly; and a radiator of the antenna assembly comprises the metal conductor and the conductive frame. Through the embodiment of the present disclosure, the feeding point is connected to the conductive frame through the metal conductor, the position of the feeding point can be flexibly set through the metal conductor without changing the connection position of the conductive frame, thereby reducing the situation that the setting position of the feeding point is limited; and meanwhile, the radiation frequency band can be adjusted based on the switch assembly.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to an antenna assembly and a terminal device. Background Technology

[0002] With the rapid development of communication technology and technological demands, terminal devices are increasingly moving towards miniaturization, broadband, and the integration of fourth-generation (4G) and fifth-generation (5G) mobile communication technologies. When configuring antenna components in terminal devices, the location of the audio components at the bottom restricts the placement of the antenna components, thus affecting their transmission and reception efficiency. Summary of the Invention

[0003] This disclosure provides an antenna assembly and a terminal device.

[0004] In a first aspect of this disclosure, an antenna assembly is provided, the antenna assembly comprising: a conductive frame, a circuit board, and a metal conductor;

[0005] A metal conductor, one end of which is connected to a feed point on the circuit board, and the other end of which is connected to a switch assembly on the circuit board and the conductive frame. The switch assembly is used to adjust the radiation frequency band of the antenna assembly.

[0006] The radiator of the antenna assembly includes the metal conductor and the conductive frame.

[0007] In some embodiments, the circuit board includes: a first circuit board and a second circuit board disposed separately from the first circuit board;

[0008] The power supply point is located on the second circuit board;

[0009] The switch assembly is located on the first circuit board.

[0010] In some embodiments, the antenna assembly includes: a radio frequency front-end assembly located on the first circuit board;

[0011] The first circuit board and the second circuit board are connected by a transmission circuit, which is at least used to transmit a first electrical signal to the radio frequency front-end component; and / or to transmit a second electrical signal generated by the radio frequency front-end component to the feed point.

[0012] In some embodiments, the area of ​​the second circuit board is smaller than that of the first circuit board.

[0013] In some embodiments, the antenna assembly further includes: a connection assembly connecting the conductive frame, the switch assembly, and the metal conductor;

[0014] The connection component includes:

[0015] The first spring connects the switch assembly and the conductive frame;

[0016] The second spring connects the switch assembly and the metal conductor.

[0017] In some embodiments, the diameters of the first and second springs are greater than 2 mm.

[0018] In some embodiments, the conductor includes a metal strip that connects the feed point and the conductive frame, respectively.

[0019] In some embodiments, the antenna assembly further includes:

[0020] A matching circuit is located on the second circuit board and disposed between the feed point and the transmission circuit; wherein the matching circuit includes at least one inductor and at least one capacitor;

[0021] The inductor connects the feed point and the transmission circuit;

[0022] The capacitor is connected to the feed point and the inductor.

[0023] In some embodiments, the switching assembly includes:

[0024] The first type of connection terminal is used to connect to the matching circuit;

[0025] The second type of connection terminal connects the metal conductor and the conductive frame.

[0026] A second aspect of this disclosure provides a terminal device, the terminal device including the antenna assembly described in the first aspect above.

[0027] In some embodiments, the terminal device further includes an audio component and / or a USB component;

[0028] The antenna assembly includes: a first circuit board and a second circuit board;

[0029] The first circuit board and the second circuit board are respectively disposed on both sides of the audio component and / or the USB component.

[0030] In some embodiments, the USB component is not grounded, and the USB component is coupled to the metal conductor.

[0031] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0032] In this embodiment, a metal conductor connects the feed point and the conductive frame. Specifically, the feed point is connected to the conductive frame via a metal conductor. Compared to a feed point directly connected to the conductive frame, this connection increases the radiating area of ​​the radiator when transmitting and receiving wireless signals, thereby improving antenna radiation efficiency. Furthermore, the metal conductor allows for flexible placement of the feed point while maintaining the same connection position on the conductive frame, reducing limitations on its placement. Additionally, this embodiment allows for adjustment of the radiation frequency band via a switching component, adapting to different antenna component environments. The connection between the feed point and the conductive frame effectively increases the circuit flow path, thereby increasing the minimum frequency required for the terminal device to transmit and receive wireless signals, resulting in a wider frequency range for the terminal device.

[0033] 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

[0034] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0035] Figure 1 This is a schematic diagram of an antenna assembly according to an exemplary embodiment. Figure 1 .

[0036] Figure 2 This is a schematic diagram of an antenna assembly according to an exemplary embodiment. Figure 2 .

[0037] Figure 3 This is a schematic diagram of an antenna assembly according to an exemplary embodiment. Figure 3 .

[0038] Figure 4 This is a schematic diagram of an antenna assembly according to an exemplary embodiment. Figure 4 .

[0039] Figure 5 This is a schematic diagram of an antenna assembly according to an exemplary embodiment. Figure 5 .

[0040] Figure 6 This is a schematic diagram of a matching circuit according to an exemplary embodiment.

[0041] Figure 7 This is a schematic diagram of an antenna assembly according to an exemplary embodiment. Figure 6 .

[0042] Figure 8 This is a schematic diagram of a switching assembly according to an exemplary embodiment. Figure 7 .

[0043] Figure 9 This is a simulation diagram of the return loss of an antenna assembly according to an exemplary embodiment.

[0044] Figure 10 This is a schematic diagram illustrating the radiation efficiency of an antenna assembly according to an exemplary embodiment.

[0045] Figure 11 This is a schematic diagram of the current of an antenna assembly according to an exemplary embodiment. Figure 1 .

[0046] Figure 12 This is a schematic diagram of the current of an antenna assembly according to an exemplary embodiment. Figure 2 .

[0047] Figure 13 This is a schematic diagram of the current of an antenna assembly according to an exemplary embodiment. Figure 3 .

[0048] Figure 14 This is a block diagram illustrating a terminal 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 the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0050] Figure 1 This is a schematic diagram of the structure of an antenna assembly according to an exemplary embodiment. Figure 1 .like Figure 1 As shown, the antenna assembly includes: a conductive frame 101, a circuit board, and a metal conductor 103;

[0051] A metal conductor 103 is connected at one end to a feed point 102 on the circuit board and at the other end to a switch assembly on the circuit board and the conductive frame 101. The switch assembly is used to adjust the radiation frequency band of the antenna assembly.

[0052] The radiator of the antenna assembly includes the metal conductor 103 and the conductive frame 101.

[0053] The aforementioned antenna assembly is used in a terminal device, which can be a wearable electronic device or a mobile terminal. The mobile terminal includes a mobile phone, a laptop, or a tablet computer, and the wearable electronic device includes a smartwatch or smart glasses. This disclosure does not impose any limitations on the embodiments.

[0054] The aforementioned conductive frame is a frame surrounding and exposed to the outside of the terminal device. This conductive frame may be made of metal or alloy, and this disclosure does not impose any limitations on its construction.

[0055] In this embodiment of the disclosure, the terminal device further includes a mid-frame located within the space enclosed by the conductive frame, and the mid-frame can be used to support the circuit board.

[0056] The aforementioned circuit board may include a printed circuit board, which can be used to carry various functional modules within the terminal device. For example, the circuit board may carry audio components for outputting audio signals, or processing components for information processing; this disclosure does not impose any limitations.

[0057] In this embodiment of the disclosure, the antenna assembly further includes a radiator and a feed point. The radiator can be used to transmit and receive wireless signals in different frequency bands. For example, the radiator can transmit and receive wireless signals in the corresponding frequency bands of 2G, 3G, or 4G, and can also transmit and receive wireless signals in the corresponding frequency band of 5G. This embodiment of the disclosure does not impose any limitations.

[0058] The aforementioned feed point is connected to the radiator and is used for signal transmission. The antenna assembly may further include: a radio frequency (RF) front-end assembly and a feed line connecting the RF front-end assembly and the feed point. When radiating a wireless signal, the feed line outputs a first electrical signal generated by the RF front-end assembly to the feed point, and then outputs the first electrical signal to the radiator through the feed point; when receiving a wireless signal, the radiator converts the received wireless signal into a second electrical signal, and transmits the second electrical signal to the feed line through the feed point, thereby enabling the second electrical signal to be transmitted to the RF front-end assembly through the feed line.

[0059] The radio frequency (RF) front-end assembly includes a first amplifier, a filter, a duplexer, and a second amplifier. The first amplifier amplifies the electrical signals in the signal output channel. The filter passes signals within a specific frequency band while filtering out signals outside that band. The duplexer isolates the transmitted and received electrical signals, enabling the antenna to function properly when simultaneously receiving and transmitting wireless signals. The second amplifier amplifies the electrical signals in the signal receiving channel. Thus, the RF front-end assembly enables the reception and transmission of electrical signals, allowing the antenna radiator to better transmit and receive wireless signals.

[0060] The radiator further includes a metal conductor connecting the feed point and the conductive frame. In some embodiments, the metal conductor includes a metal strip connecting the feed point and the conductive frame respectively. In this disclosure, the metal conductor can be not only in the form of a metal strip, but also in a bent shape. For example, the metal conductor can also be L-shaped; this disclosure does not impose any limitations.

[0061] In this embodiment, the length of the metal conductor can be set according to the size of the conductive frame. For example, the greater the distance between two opposite frames in the conductive frame, the longer the corresponding metal conductor can be.

[0062] For example, the length of the metal conductor can be set to 45 mm or 50 mm, and this disclosure does not limit the embodiments.

[0063] In this embodiment of the disclosure, the length of the metal conductor is negatively correlated with the frequency radiated by the antenna assembly. For example, the longer the metal conductor, the lower the lowest frequency in the frequency range radiated by the antenna assembly.

[0064] The aforementioned feed point is connected to a metal conductor, which in turn connects to a conductive frame. In other words, the feed point in this embodiment is not directly connected to the conductive frame, but rather indirectly connected via a metal conductor. This means that while the position of the antenna assembly connected to the conductive frame remains unchanged, this embodiment allows for flexible placement of the feed point via a metal conductor.

[0065] The aforementioned switching component has different switching states. These different states correspond to different frequency bands radiated by the antenna component. Therefore, the antenna component's radiation frequency band can be adjusted by the switching component to adapt to different scenarios and improve its radiation efficiency. For example, the model of this switching component includes, but is not limited to, QM13146.

[0066] For example, such as Figure 2 As shown, an audio component 104 is arranged at the bottom of the terminal device. When setting the position of the power supply point, the power supply point and the position connecting the conductive frame can be set on both sides of the audio component 104, and the metal conductor 103 is stacked on the audio component 104. In this way, by connecting the conductive frame and the power supply point with the metal conductor, the setting position of the power supply point can be reduced from being limited by the audio component, making the layout of the power supply point more flexible.

[0067] In this embodiment, a metal conductor connects the feed point and the conductive frame. That is, the feed point is connected to the conductive frame via a metal conductor. While the connection position of the conductive frame remains unchanged, the metal conductor allows for flexible placement of the feed point, reducing limitations on its location. Furthermore, compared to a feed point directly connected to the conductive frame, this embodiment increases the radiating area of ​​the radiator when transmitting and receiving wireless signals, thereby improving antenna radiation efficiency. Additionally, connecting the feed point to the conductive frame via a metal conductor effectively increases the circuit flow path, thereby increasing the minimum frequency required for the terminal device to transmit and receive wireless signals, resulting in a wider frequency band range for the terminal device.

[0068] In some embodiments, such as Figure 3 As shown, the circuit board includes:

[0069] A first circuit board 105 and a second circuit board 106 disposed separately from the first circuit board 105;

[0070] The power supply point 102 is located on the second circuit board 106;

[0071] The switch assembly is located on the first circuit board 105.

[0072] In other embodiments, the antenna assembly further includes: a radio frequency front-end assembly located on the first circuit board; the first circuit board and the second circuit board are connected by a transmission circuit, the transmission circuit being used at least to transmit a first electrical signal to the radio frequency front-end assembly; and / or to transmit a second electrical signal generated by the radio frequency front-end assembly to the feed point.

[0073] In this embodiment, the circuit board includes a first circuit board and a second circuit board. In addition to the switching assembly, the first circuit board may also include other modules. For example, these other components may be a processing module, an audio component, or a radio frequency front-end component; this embodiment does not impose any limitations.

[0074] It should be noted that both the first circuit board and the second circuit board are printed circuit boards. In some embodiments, the area of ​​the second circuit board is smaller than that of the first circuit board; in other embodiments, the volume of the second circuit board is smaller than that of the first circuit board.

[0075] In this embodiment of the disclosure, the conductive border may be a rectangular border. The first circuit board and the second circuit board are separately disposed, including: the first circuit board and the second circuit board are separately disposed between two oppositely disposed long borders; or, the first circuit board and the second circuit board are separately disposed between two oppositely disposed short borders. Wherein, the length of the long border is greater than the length of the short border.

[0076] The second circuit board and the first circuit board can be connected via a board-to-board (BTB) connector; alternatively, the second circuit board and the first circuit board can be connected via a coaxial cable. The transmission circuit can be mounted on the BTB connector or on the coaxial cable; this disclosure does not impose any limitations.

[0077] The aforementioned feed point is located on the second circuit board. In addition to the feed point, the second circuit board may also have a matching circuit for the antenna assembly. The matching circuit is connected to the feed point and is used for impedance matching to ensure that the energy generated by the antenna assembly can be radiated out through the radiator to the maximum extent.

[0078] In this embodiment, the first circuit board and the second circuit board are separately disposed, and the feed point is disposed on the second circuit board. That is, the antenna assembly of this embodiment can be applied to terminal devices having two circuit boards. Furthermore, disposing of the feed point on the second circuit board allows for flexible layout of the antenna assembly.

[0079] In some embodiments, such as Figure 4 and Figure 5 As shown, the antenna assembly further includes: a connection assembly connecting the conductive frame, the switch assembly, and the metal conductor;

[0080] The first spring contact 107 connects the switch assembly and the conductive frame 101;

[0081] The second spring 108 connects the switch assembly and the metal conductor 103.

[0082] In other words, the embodiments of this disclosure connect the metal conductor to the second spring, the second spring is connected to the first spring through a switch assembly, and the first spring is connected to the conductive frame, thereby realizing the connection between the metal conductor and the conductive frame.

[0083] In this embodiment, both the first and second springs can be metal sheets with a certain degree of elasticity and ductility.

[0084] The aforementioned first spring includes a first fixed end and a first suspended end. The first fixed end is fixed on the first circuit board and connected to the switch assembly. The first suspended end is in contact with the conductive frame and is squeezed by the conductive frame. Through the recovery of its own elastic deformation, it can establish a stable connection with the conductive frame.

[0085] Similarly, the second spring includes a second fixed end and a second suspended end. The second fixed end is fixed on the first circuit board and connected to the switch assembly. The second suspended end is in contact with the metal conductor and is squeezed by the metal conductor. Through the recovery of its own elastic deformation, it can establish a stable connection with the metal conductor.

[0086] The first fixed end of the first spring and the second fixed end of the second spring are respectively fixed at different positions on the first circuit board.

[0087] It should be noted that by fixing the first fixing end to the first circuit board, the first spring can be stably disposed within the terminal device, thereby ensuring a stable connection between the first spring and the conductive frame. Similarly, by fixing the second fixing end to the first circuit board, the second spring can be stably disposed within the terminal device, thereby ensuring a stable connection between the metal conductor connected to the second spring and the terminal device.

[0088] In this embodiment, to further ensure a stable connection between the first spring and the conductive frame, the conductive frame may be provided with a groove, and at least a portion of the first suspended end of the first spring may be embedded in the groove. Thus, when the terminal device is dropped or in different positions, the groove wall can prevent the movement of the first suspended end, thereby making the connection between the first spring and the conductive frame more stable.

[0089] It should be noted that the shape and size of the groove can be determined based on the portion of the first suspended end embedded in the groove. For example, the shape of the groove can be similar to or the same as the shape of the embedded portion of the first suspended end; the size of the groove can be greater than or equal to the size of the embedded portion of the first suspended end, and this disclosure does not impose any limitations.

[0090] In some embodiments, the diameters of the first and second springs are greater than 2 mm. Thus, setting the first and second springs to be greater than 2 mm allows for better connection between the switch assembly, the conductive frame, and the metal conductor.

[0091] In this embodiment of the disclosure, such as Figure 5 As shown, the first contact spring 107 and the second contact spring 108 are connected by a connecting line 109. The line width of this connecting line is greater than a preset width, which may be greater than or equal to 2 mm, but is not limited in this embodiment. By making the line width of the connecting line greater than the preset width, this embodiment can better transmit electrical signals and make the connection between the first conductive piece and the second conductive piece more stable. Exemplarily, the connecting line includes, but is not limited to, copper wire.

[0092] In some embodiments, such as Figure 6 As shown, the antenna assembly further includes:

[0093] A matching circuit 110 is located on the second circuit board and is disposed between the feed point 102 and the transmission circuit; wherein the matching circuit includes at least one inductor and at least one capacitor;

[0094] The inductor connects the feed point and the transmission circuit;

[0095] The capacitor is connected to the inductor and the feed point.

[0096] In this embodiment of the disclosure, the matching circuit can be configured using a Smith chart. For example, when the output impedance of the RF front-end component connected to the feed point is 50 ohms, the impedance of the matching circuit can be matched to the vicinity of the 50-ohm region on the Smith chart using a Smith chart. The resulting impedance of the matching circuit can then match the impedance of the RF front-end component, maximizing the energy generated by the RF front-end component to be radiated out through the radiator.

[0097] It should be noted that the power supply point is located on the second circuit board, and the metal conductor is connected to the power supply point. When setting up the matching circuit, the matching circuit can be placed on the second circuit board. For example, such as... Figure 7 As shown, the power supply point 102, the matching circuit 110, and the conductive sheet 111 are all disposed on the second circuit board 106. Among them, one connection terminal of the matching circuit 110 is connected to the power supply point 102.

[0098] In this embodiment, the power supply point can be connected to the metal conductor by welding or metal colloid, or by a conductive sheet; this embodiment is not limited to this. The conductive sheet includes, but is not limited to, a conductive spring.

[0099] In some embodiments, such as Figure 8 As shown, the switch assembly 111 includes:

[0100] The first type of connection terminal 111a is connected to the matching circuit 110;

[0101] The second type of connection terminal 111b connects the metal conductor 101 and the conductive frame 103.

[0102] In this embodiment of the disclosure, the matching circuit includes at least two matching sub-circuits; the switching assembly further includes a switching circuit, which is connected to the matching circuit via a first type of connection terminal.

[0103] It should be noted that the switching circuit is used to connect at least one of at least two matching sub-circuits by switching. That is, when the switching component connects to different matching sub-circuits of at least two matching sub-circuits by switching, the antenna component has different impedance matching values. Thus, when the antenna component transmits and receives wireless signals of different frequency bands, it can provide the antenna component with impedance matching values ​​corresponding to different frequency bands, so that the energy of the antenna component can be radiated out through the radiator to the maximum extent.

[0104] In this embodiment of the disclosure, the switching circuit may include at least one switching path. This switching path is connected to a matching sub-circuit, and by switching, different matching sub-circuits can be connected to the radiator, thereby enabling the antenna assembly to have different matching values.

[0105] Exemplarily, the switching assembly includes, but is not limited to, a single-pole four-throw switch used for antenna assembly tuning applications. For example... Figure 8 As shown, the model of the switching component can be QM13146. It controls the switching of the data line SDM_RFFE0_DATA and the clock line SDM_RFFE0_CLK through the Mobile Industry Processor Interface (MIPI), thereby enabling the antenna component to have different matching values ​​and thus enabling the switching of different frequency bands.

[0106] Figure 9 Simulation curves of return loss for antenna components with different matching values ​​are shown, such as... Figure 9 As shown, at frequencies of 841 MHz, 732 MHz, and 916 MHz, the return loss of the antenna assembly is between -8 dB and -14 dB; at frequencies of 4.4 GHz and 4.99 GHz, the return loss of the antenna assembly is between -2 dB and -8 dB. Thus, the return loss of the antenna assembly meets the usage requirements.

[0107] Figure 10 For antenna components with different matching values, the radiation efficiency is as follows: Figure 10 As shown, the radiation efficiency of the antenna assembly is between -6dB and -8dB at frequencies of 843M, 723M, and 917M; and between -4dB and -8dB at frequencies of 4.4G and 5G. Thus, the radiation efficiency of the antenna assembly meets the usage requirements.

[0108] Figure 11 and Figure 12 This is a current flow diagram for the antenna assembly operating in loop mode. (Example:) Figure 11 and 12 As shown, the current flow direction corresponding to 201 is opposite to that corresponding to 202; 203 is the current distribution area for the antenna assembly to transmit and receive wireless signals.

[0109] Figure 13 This is a current flow diagram for an antenna assembly operating in higher-order modes. (Example:) Figure 13 As shown, the current flow direction corresponding to 204 is opposite to that corresponding to 205.

[0110] In some embodiments, the metal conductor is a metal conductor formed by direct laser forming; or, the metal conductor is a metal conductor formed by wires within a flexible printed circuit board.

[0111] Thus, by using laser-formed metal conductors and flexible printed circuit board wires, flexible configuration of metal conductors can be achieved.

[0112] In some embodiments, the circuit board includes a first circuit board and a second circuit board;

[0113] The conductive frame includes: a long frame and a short frame adjacent to the long frame; the length of the long frame is greater than the length of the short frame;

[0114] The second circuit board is located between the first circuit board and the long frame;

[0115] The metal conductor connects to the short frame.

[0116] In this embodiment of the disclosure, the first circuit board is provided with a processing module, the area of ​​the first circuit board is larger than the area of ​​the second circuit board, and the second circuit board can be flexibly disposed in the area between the first circuit board and the long frame.

[0117] It should be noted that during the placement of the metal conductor, the metal conductor can be connected to the short edge near the second circuit board.

[0118] In some embodiments, there are two short bezels, including a first short bezel and a second short bezel disposed relative to the first short bezel; the first short bezel is the short side where the bottom of the terminal device is located, and the second short bezel is the short side where the top of the terminal device is located; the distance between the first circuit board and the first short bezel is less than the distance between the first circuit board and the second short bezel; the metal conductor connects to the first short bezel.

[0119] In this way, by connecting the metal conductor to the short frame near the second circuit board, the distance between the metal conductor and the connected short frame can be reduced, thereby reducing the size of the connecting component that connects the metal conductor and the short frame and reducing the space occupied by the antenna component in the terminal device.

[0120] This disclosure also proposes a terminal device, which includes the antenna assembly described in one or more of the above embodiments.

[0121] In some embodiments, the terminal device further includes an audio component and / or a USB component;

[0122] The antenna assembly includes: a first circuit board and a second circuit board; wherein the first circuit board and the second circuit board are respectively disposed on both sides of the audio component and / or the USB component.

[0123] In some embodiments, the USB component is not grounded, and the USB component is coupled to the metal conductor.

[0124] In other words, the metal conductor of the antenna assembly in this embodiment can couple the USB assembly, so that the USB assembly and the metal conductor can be used together to transmit and receive wireless signals, thereby increasing the radiation area when transmitting and receiving wireless signals and thus improving the antenna radiation efficiency.

[0125] It should be noted that the terms "first" and "second" in the embodiments of this disclosure are for ease of description and distinction only, and have no other specific meaning.

[0126] Figure 14 This is a block diagram illustrating a terminal device according to an exemplary embodiment. For example, the terminal device may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0127] Reference Figure 14 The terminal device may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input / output (I / O) interface 812, sensor component 814, and communication component 816.

[0128] Processing component 802 typically controls the overall operation of the terminal device, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0129] Memory 804 is configured to store various types of data to support operation on the terminal device. Examples of this data include instructions for any application or method operating on the terminal device, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 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.

[0130] Power component 806 provides power to various components of the terminal device. Power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the terminal device.

[0131] Multimedia component 808 includes a screen that provides an output interface between a terminal device and a 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 808 includes a front-facing camera and / or a rear-facing camera. When the terminal device is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the 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.

[0132] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when the terminal device 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 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0133] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0134] Sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of the terminal device. For example, sensor assembly 814 can detect the on / off state of the terminal device, the relative positioning of components such as the terminal device's display and keypad, changes in the position of the terminal device or a component of the terminal device, the presence or absence of user contact with the terminal device, the terminal device's orientation or acceleration / deceleration, and temperature changes. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0135] Communication component 816 is configured to facilitate wired or wireless communication between the terminal device and other devices. The terminal device can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 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) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0136] In an exemplary embodiment, the terminal device 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 to perform the methods described above.

[0137] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention 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 the invention are indicated by the following claims.

[0138] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. An antenna assembly, characterized in that, include: A conductive frame, a first circuit board, a second circuit board separately disposed from the first circuit board, and a metal conductor; A metal conductor, one end of which is connected to the feed point on the second circuit board, and the other end of which is connected to the switch assembly on the first circuit board and the conductive frame, wherein the switch assembly is used to adjust the radiation frequency band of the antenna assembly; The radiator of the antenna assembly includes the metal conductor and the conductive frame; The antenna assembly further includes: a connection assembly that connects the conductive frame, the switch assembly, and the metal conductor; The feed point is connected to the conductive frame through a metal conductor, which increases the radiation area of ​​the radiator, increases the circuit flow path, and increases the minimum frequency for transmitting and receiving the wireless signal when transmitting and receiving wireless signals. The connection component includes: The first spring connects the switch assembly and the conductive frame; The second contact spring connects the switch assembly and the metal conductor; The first elastic sheet is connected to the second elastic sheet via a connecting line, and the line width of the connecting line is greater than a preset width.

2. The antenna assembly according to claim 1, characterized in that, The antenna assembly further includes: a radio frequency front-end assembly located on the first circuit board; The first circuit board and the second circuit board are connected by a transmission circuit, which is at least used to transmit a first electrical signal to the radio frequency front-end component; and / or to transmit a second electrical signal generated by the radio frequency front-end component to the feed point.

3. The antenna assembly according to claim 1, characterized in that, The area of ​​the second circuit board is smaller than that of the first circuit board.

4. The antenna assembly according to claim 1, characterized in that, The diameters of the first and second springs are greater than 2 mm.

5. The antenna assembly according to any one of claims 1 to 3, characterized in that, The metal conductor includes: a metal strip that connects the feed point and the conductive frame respectively.

6. The antenna assembly according to claim 2, characterized in that, The antenna assembly also includes: A matching circuit is located on the second circuit board and disposed between the feed point and the transmission circuit; wherein the matching circuit includes at least one inductor and at least one capacitor; The inductor connects the feed point and the transmission circuit; The capacitor is connected to the feed point and the inductor.

7. The antenna assembly according to claim 6, characterized in that, The switching assembly includes: The first type of connection terminal is used to connect to the matching circuit; The second type of connection terminal connects the metal conductor and the conductive frame.

8. A terminal device, characterized in that, The terminal device includes the antenna assembly as described in any one of claims 1 to 7.

9. The terminal device according to claim 8, characterized in that, The terminal device also includes an audio component and / or a USB component; The antenna assembly includes: a first circuit board and a second circuit board; wherein the first circuit board and the second circuit board are respectively disposed on both sides of the audio component and / or the USB component.

10. The terminal device according to claim 9, characterized in that, The USB component is not grounded, and the USB component is coupled to the metal conductor.

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