Antenna assembly and electronic device

Abstract

The present disclosure provides an antenna assembly and an electronic device, and relates to the technical field of electronic devices. The antenna assembly comprises: a first antenna, the first antenna being electrically connected with a feed source; and a tuning element, the tuning element being electrically connected between the first antenna and the feed source; wherein the tuning element is configured to switch a tuning state, so that the first antenna works in a target working frequency band. The present disclosure switches the tuning state based on the tuning element, so that the first antenna can support different working frequency bands. The present disclosure can ensure the performance of the antenna while meeting the miniaturization design requirement of the antenna based on the tuning element, thereby improving the space utilization of the internal space of the electronic device.

Description

Technical Field

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

[0002] With the continuous development of electronic design, users' demands for diversified functions in electronic devices are constantly increasing, prompting electronic devices to become increasingly complex and feature-rich in terms of performance and functionality. To meet the needs of multi-band communication and multi-functional applications, the complexity of antenna design has also increased significantly. This trend has also led to the problem of increasingly limited internal space in electronic devices.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To overcome the problems existing in the related technologies, this disclosure provides an electronic device.

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

[0006] The first antenna is electrically connected to the feed source;

[0007] A tuning element, wherein the tuning element is electrically connected to the first antenna and the feed source respectively;

[0008] The tuning element is used to switch the tuning state so that the first antenna operates in the target operating frequency band.

[0009] This disclosure enables the switching of tuning states based on tuning elements, thereby enabling the first antenna to support different operating frequency bands. Based on tuning elements, this disclosure can achieve the miniaturization design requirements of the antenna while ensuring antenna performance, thereby improving the space utilization rate of the internal space of electronic devices.

[0010] In some exemplary embodiments, a first end of the tuning element is electrically connected to the first antenna, and a first end of the tuning element is electrically connected to the feed source.

[0011] In some exemplary embodiments, the second terminal of the tuning element is grounded.

[0012] This disclosure enables the tuning element to form part of an LC parallel resonant circuit by electrically connecting the first end of the tuning element between the first antenna and the feed source and grounding its second end, thereby realizing the adjustment of the resonant frequency of the first antenna by adjusting the capacitance value of the tuning element.

[0013] In some exemplary embodiments, the tuning element is a varactor diode, which is used to switch the tuning state by changing the capacitance value.

[0014] The embodiments disclosed herein can realize multi-band antennas while effectively reducing the number of components used and their footprint on the PCB, which is beneficial for antenna miniaturization design and cost reduction. In addition, this disclosure can reduce traditional switching losses and inductor losses, thus effectively improving antenna radiation efficiency.

[0015] In some exemplary embodiments, the target operating frequency band of the first antenna includes the MHB (Mid-High Band) band.

[0016] Since varactor diodes can flexibly change their capacitance value, the embodiments of this disclosure can achieve full coverage of the mid-to-high frequency antenna bandwidth while reducing the footprint on the PCB, effectively ensuring antenna performance.

[0017] In some exemplary embodiments, the first antenna is in an initial state when no reverse bias voltage is applied to the varactor diode, and the target operating frequency band corresponding to the first antenna in the initial state is the B41 band.

[0018] In some exemplary embodiments, the antenna assembly provided in this disclosure further includes:

[0019] A matching circuit is electrically connected between the first antenna and the feed source.

[0020] In some exemplary embodiments, the matching circuit includes a first capacitor, a second capacitor, and a first inductor;

[0021] The first terminal of the first capacitor is electrically connected to the first antenna, the second terminal of the first capacitor is electrically connected to the first terminal of the first inductor, and the second terminal of the first inductor is electrically connected to the feed source; the second capacitor is electrically connected between the second terminal of the first inductor and the feed source.

[0022] This disclosure uses the matching circuit and tuning element to form an LC resonant circuit for impedance tuning of the first antenna, thereby achieving a matching effect and improving antenna performance. Additionally, the second capacitor can also be used to improve the filtering characteristics of the circuit.

[0023] In some exemplary embodiments, the tuning element is a switching diode, which is used to switch a switching state to switch the tuning state.

[0024] The embodiments disclosed herein can switch between two tuning states by using a switching diode, thereby realizing a multi-band antenna while effectively reducing the number of components used and its footprint on the PCB, which is beneficial for the miniaturization design of the antenna and reduces costs.

[0025] According to a second aspect of the present disclosure, an electronic device is provided, the electronic device including the antenna assembly described in any one of the foregoing.

[0026] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0027] The antenna assembly provided in this disclosure can switch the tuning state based on the tuning element, thereby enabling the first antenna to support different operating frequency bands. Based on the tuning element, this disclosure can achieve the miniaturization design requirements of the antenna while ensuring antenna performance, thereby improving the space utilization rate of the internal space of electronic devices.

[0028] 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

[0029] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0030] Figure 1 This is a schematic diagram of the structure of an antenna assembly according to some embodiments of the present disclosure.

[0031] Figure 2 This is a schematic diagram illustrating the footprint of a PCB according to some embodiments of the present disclosure.

[0032] Figure 3 This is a schematic diagram of the structure of an antenna assembly according to some embodiments of the present disclosure.

[0033] Figure 4 This is a schematic diagram illustrating the overall system efficiency corresponding to a first antenna according to some embodiments of the present disclosure.

[0034] Figure 5 This is a schematic diagram illustrating scattering parameters corresponding to a first antenna according to some embodiments of the present disclosure.

[0035] Figure 6 This is a schematic diagram of the structure of an electronic device according to some embodiments of the present disclosure.

[0036] Figure 7 This is a block diagram illustrating an electronic device according to some embodiments of the present disclosure. Detailed Implementation

[0037] Some embodiments of this disclosure will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. Various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but can be changed as will become apparent upon understanding this disclosure, except for operations that must be performed in a particular order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0038] The embodiments described in the following examples of this disclosure are not representative of all embodiments consistent with this disclosure. Rather, they are merely examples consistent with some aspects of this disclosure as detailed in the appended claims.

[0039] The specific implementation methods of the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0040] Figure 1 This is a schematic diagram illustrating the structure of an antenna assembly according to an exemplary embodiment of this disclosure. Figure 1 As shown, the antenna assembly 100 may include a first antenna 1, a tuning element 2, and a feed 3. The first antenna 1 may be electrically connected to the feed 3. The tuning element may be electrically connected to both the first antenna 1 and the feed 3.

[0041] The tuning element 2 can be used to switch the tuning state so that the first antenna 1 operates in the target operating frequency band.

[0042] It should be noted that the type of the first antenna 1 is not limited in the embodiments disclosed herein. For example, the first antenna 1 can be a half-wavelength antenna, a quarter-wavelength antenna, an eighth-wavelength antenna, etc.

[0043] For example, the feed 3 can be used to transmit a signal from a transmitter to the first antenna 1 or to transmit a received signal to a receiver. Therefore, the feed 3 can power the first antenna 1, allowing the first antenna 1 to radiate signals for a target operating frequency band. Furthermore, the first antenna 1 can also be provided with a grounding portion to connect to the ground plane, thereby achieving grounding.

[0044] In addition, in the exemplary embodiment, the first antenna 1 may be, for example, a frame antenna, an LDS (Laser Direct Structuring) patch antenna, etc., and the embodiments disclosed herein are not limited to this.

[0045] In some possible implementations, the first antenna 1 can be a multi-band antenna, so impedance tuning can be achieved by switching the tuning state through a tuning element, thereby enabling the first antenna 1 to support multiple frequency bands.

[0046] In some embodiments of this disclosure, the first end of the tuning element 2 is electrically connected to the first antenna 1, and the first end of the tuning element 2 is electrically connected to the feed 3.

[0047] In an exemplary embodiment, such as Figure 1 As shown, the upper end of the tuning element 2 can be the first end of the tuning element 2. Exemplarily, in this embodiment, the first end of the tuning element 2 can be electrically connected to the connection point between the first antenna 1 and the feed 3 by means of soldering or using conductive adhesive. It should be noted that this connection point can be located near the effective radiation area of ​​the first antenna 1 in order to maximize the influence on the electrical characteristics of the first antenna 1.

[0048] In some embodiments of this disclosure, the second terminal of the tuning element 2 is grounded.

[0049] In an exemplary embodiment, such as Figure 1 As shown, one end located on the lower side of the tuning element 2 can be the second end of the tuning element 2, thereby grounding the second end of the tuning element 2. For example, the second end of the tuning element 2 can be grounded by connecting to the ground plane layer of a circuit board such as a PCB (Printed Circuit Board). Alternatively, if the tuning element 2 is housed within the metal casing of an electronic device, it can be directly connected to the casing itself as a ground reference.

[0050] It should be noted that, in this embodiment of the present disclosure, by electrically connecting the first end of the tuning element 2 between the first antenna 1 and the feed source 3 and grounding its second end, the tuning element 2 can be made to form part of an LC parallel resonant circuit, thereby realizing the adjustment of the resonant frequency of the first antenna 1 by adjusting the capacitance value of the tuning element 2.

[0051] In some embodiments of this disclosure, the tuning element 2 may be a varactor diode, which can be used to switch the tuning state by changing the capacitance value.

[0052] It should be noted that this varactor diode utilizes the characteristic that the capacitance of a PN junction changes with the reverse bias voltage to adjust its capacitance value. Under reverse bias, the PN junction forms a depletion layer, which can be considered as the dielectric of a capacitor. Increasing the reverse bias voltage increases the width of the depletion layer, leading to a decrease in the varactor diode's capacitance; conversely, decreasing the reverse bias voltage increases the varactor diode's capacitance.

[0053] In some possible implementations, the antenna assembly 100 may further include a control circuit electrically connected to the varactor diode, thereby allowing the present disclosure embodiments to provide a reverse bias voltage to the varactor diode to adjust the capacitance value of the varactor diode.

[0054] This disclosure does not limit the correspondence between the capacitance value of the varactor diode and the various tuning states. For example, a capacitance value of 0.7 pF corresponds to the first tuning state. A capacitance value of 1.6 pF corresponds to the second tuning state. A capacitance value of 1 pF corresponds to the third tuning state. A capacitance value of 2.1 pF corresponds to the fourth tuning state.

[0055] Therefore, this embodiment of the present disclosure can achieve tuning of the resonant frequency of the first antenna 1 by setting a varactor diode, and the capacitance value can be flexibly adjusted according to different operating frequency bands. Compared with setting multiple tuning branches, each tuning branch contains different tuning devices, and the switching connection of the tuning branches is based on a single-pole multi-throw switch. This embodiment of the present disclosure can realize a multi-band antenna while effectively reducing the number of components used and reducing its footprint on the PCB, which is beneficial to the miniaturization design of the antenna and reduces costs. In addition, this disclosure can reduce traditional switching losses and inductor losses, thus effectively improving the antenna radiation efficiency.

[0056] For example, Figure 2 This is a schematic diagram illustrating the footprint of a PCB according to some embodiments of this disclosure. Figure 2 As shown, in the case of implementing a multi-band antenna based on multiple tuning branches, taking four tuning branches as an example, each tuning branch includes tuning device 1, tuning device 2, tuning device 3, and tuning device 4. Furthermore, a switching chip is needed to control the single-pole multi-throw (SP4T) switches, thereby enabling switching connections between the four tuning branches based on the switching chip. For example, the SP4T can be a 4SPST (4Single Pole Single Throw) or a SP4T (Single Pole 4 Throw). The aforementioned tuning devices 1, 2, 3, and 4 can be capacitors or inductors, etc.

[0057] Regarding the solutions provided in the embodiments of this disclosure, such as Figure 2As shown, a multi-band antenna can be implemented based on a varactor diode. In one possible implementation, when a multi-band antenna is implemented using a switching chip, tuning device 1, tuning device 2, tuning device 3, and tuning device 4, the PCB area occupied can be 3mm × 3mm. However, when the multi-band antenna is implemented based on a varactor diode, the PCB area occupied can be reduced to 0.7mm × 0.3mm. The PCB area occupied by the embodiments of this disclosure is only 3% of that of the switching chip solution. It can be seen that the embodiments of this disclosure significantly reduce its footprint on the PCB.

[0058] In some embodiments of this disclosure, the tuning element 2 may be a switching diode, which may be used to switch switching states to switch tuning states.

[0059] It should be noted that a switching diode can conduct current when forward biased and block current when reverse biased. Therefore, the switching diode can be used to control the on / off state of signals or power supplies.

[0060] In some possible implementations, the closed state of the switching diode can be associated with a first tuning state, and the open state of the switching diode can be associated with a second tuning state.

[0061] Therefore, the embodiments of this disclosure can achieve the switching of two tuning states by using a switching diode, thereby realizing a multi-band antenna while effectively reducing the number of components used and reducing its footprint on the PCB, which is beneficial for the miniaturization design of the antenna and reduces costs.

[0062] In some embodiments of this disclosure, the target operating frequency band of the first antenna 1 may include the MHB band.

[0063] For example, the MHB band may include a mid-frequency band and a high-frequency band. The frequency range of the mid-frequency band may be, for example, between 1 GHz (gigahertz) and 6 GHz. The frequency range of the high-frequency band may be, for example, greater than or equal to 24 GHz.

[0064] It should be noted that the present disclosure does not limit the target operating frequency band of the first antenna 1. In addition to the MHB frequency band, the first antenna 1 may also support at least one of the following: UWB (Ultra-Wideband), LB (Low Band), and Sub-6G (below 6 GHz) frequency bands.

[0065] For example, since the varactor diode can flexibly change the capacitance value, the embodiments of this disclosure can achieve full coverage of the mid-to-high frequency antenna bandwidth while reducing the footprint on the PCB, effectively ensuring antenna performance.

[0066] In some embodiments of this disclosure, the antenna assembly provided in these embodiments may further include a matching circuit 4. The matching circuit 4 may be electrically connected between the tuning element 2 and the feed source 3.

[0067] This disclosure does not limit the specific structure of the matching circuit 4; the matching circuit 4 only needs to ensure that the first antenna 1 supports the target operating frequency band. In an exemplary embodiment, the matching circuit 4 can be used to suppress unnecessary harmonics and noise to ensure signal purity.

[0068] In some embodiments of this disclosure, the matching circuit 4 includes a first capacitor 41, a second capacitor 42, and a first inductor 43. The first terminal of the first capacitor 41 is electrically connected to the tuning element 2, the second terminal of the first capacitor 41 is electrically connected to the first terminal of the first inductor 43, and the second terminal of the first inductor 43 is electrically connected to the feed source 3. The second capacitor 42 is electrically connected between the second terminal of the first inductor 43 and the feed source 3.

[0069] Figure 3 This is a schematic diagram of the structure of an antenna assembly according to some embodiments of the present disclosure.

[0070] like Figure 3 As shown, the left end of the first capacitor 41 can be the first terminal of the first capacitor 41, and the right end of the first capacitor 41 can be the second terminal of the first capacitor 41. Similarly, the left end of the first inductor 43 can be the first terminal of the first inductor 43, and the right end of the first inductor 43 can be the second terminal of the first inductor 43. Furthermore, in this… Figure 3 In this configuration, one end of the upper side of the second capacitor 42 can be electrically connected between the second end of the first inductor 43 and the feed source 3.

[0071] This disclosure does not limit the capacitance values ​​of the first capacitor 41 and the second capacitor 42, nor does it limit the inductance value of the first inductor 43. For example, the capacitance value of the first capacitor 41 can be 0.6pF, the capacitance value of the second capacitor 42 can be 1.2pF, and the capacitance value of the first inductor 43 can be 4.8nH.

[0072] It should be noted that in this embodiment, the matching circuit 4 and the tuning element 2 together form an LC resonant circuit for impedance tuning of the first antenna 1, thereby achieving a matching effect and improving antenna performance. Additionally, the second capacitor 42 can also be used to improve the filtering characteristics of the circuit.

[0073] In some embodiments of this disclosure, the first antenna 1 is in an initial state when no reverse bias voltage is applied to the varactor diode, and the target operating frequency band corresponding to the first antenna 1 in the initial state is the B41 frequency band.

[0074] It should be noted that the varactor diode utilizes the characteristic that the capacitance of the PN junction changes with the reverse bias voltage to adjust the capacitance value. When no reverse bias voltage is applied to the varactor diode, the first antenna 1 can be considered to be in its initial state, and the target operating frequency band corresponding to the first antenna is the B41 band. However, as a reverse bias voltage is gradually applied to the varactor diode, the target operating frequency band corresponding to the first antenna changes accordingly.

[0075] Figure 4 This is a schematic diagram illustrating the overall system efficiency corresponding to a first antenna 1 according to an exemplary embodiment of this disclosure. Figure 4 In the diagram, the vertical axis represents the overall system efficiency, expressed in decibels (dB), with smaller values ​​indicating higher efficiency. The horizontal axis represents frequency, ranging from 1.5 GHz to 3 GHz.

[0076] like Figure 4 As shown, when switching the tuning branch based on a single-pole multi-throw switch to realize a multi-band antenna, System Tot.Efficiency[MHB]_00, System Tot.Efficiency[MHB]_01, System Tot.Efficiency[MHB]_02, System Tot.Efficiency[MHB]_04, and System Tot.Efficiency[MHB]_08 can respectively represent the total system efficiency corresponding to the first antenna 1 when switching to different tuning branches.

[0077] in addition, Figure 4 In the system, SystemTot.Efficiency[shyanMHB]-0.7pf, SystemTot.Efficiency[shyanMHB]-1.6pf, SystemTot.Efficiency[shyanMHB]-1pf, and SystemTot.Efficiency[shyanMHB]-2.1pf can respectively represent the total system efficiency corresponding to the first antenna 1 when the capacitance value of the tuning element 2 in this embodiment of the present disclosure is 0.7pf, 1.6pf, 1pf, and 2.1pf.

[0078] according to Figure 4As can be seen, the embodiments of this disclosure realize a multi-band antenna based on the tuning element 2, which can achieve full coverage of the mid-to-high frequency band antenna bandwidth. When the first antenna 1 is in the initial state, the first antenna 1 operates in the B41 band and can use the change of capacitance value to cover the entire mid-to-high frequency band. The radiation efficiency of the B41 band is improved by about 2dB compared with a single-pole multi-throw switch.

[0079] Figure 5 This is a schematic diagram illustrating the scattering parameters corresponding to a first antenna 1 according to an exemplary embodiment of the present disclosure. Figure 5 In the diagram, the vertical axis represents the scattering parameters, also known as the S22 parameters, expressed in decibels (dB). The horizontal axis represents the frequency, ranging from 1.5 GHz to 3 GHz.

[0080] like Figure 5 As shown, when a multi-band antenna is realized by switching the tuning branch based on a single-pole multi-throw switch, S2,2_00, S2,2_01, S2,2_02, S2,2_04 and S2,2_08 can represent the scattering parameters of the first antenna 1 when it is switched to different tuning branches.

[0081] in addition, Figure 5 S2_2_0.7pf, S2_2_1.6pf, S2_2_1pf, and S2_2_2.1pf in the embodiments of this disclosure can respectively represent the scattering parameters corresponding to the first antenna 1 when the capacitance value of the tuning element 2 is 0.7pf, 1.6pf, 1pf, and 2.1pf. Figure 5 As can be seen, the embodiments of this disclosure implement a multi-band antenna based on the tuning element 2, which can effectively increase the resonance depth and thus improve the antenna performance.

[0082] The antenna assembly provided in this disclosure can switch the tuning state based on the tuning element, thereby enabling the first antenna to support different operating frequency bands. Based on the tuning element, this disclosure can achieve the miniaturization design requirements of the antenna while ensuring antenna performance, thereby improving the space utilization rate of the internal space of electronic devices.

[0083] like Figure 6 As shown, Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of this disclosure is shown.

[0084] For example, the electronic device 200 may be a tablet computer, mobile phone, e-reader, MP3 player, MP4 player, laptop computer, in-vehicle computer or desktop computer, portable terminal, laptop terminal, desktop terminal, action camera, drone, monitor camera and similar products.

[0085] In an exemplary embodiment, the electronic device 200 may include the antenna assembly 100 described above.

[0086] It should be noted that the present disclosure does not limit the position of the antenna assembly 100 on the electronic device 200. For example, the antenna assembly 100 may be disposed on the middle frame of the electronic device 200, or on the back cover, reinforcing bracket, or other positions of the electronic device 200.

[0087] In some embodiments, such as Figure 6 As shown, in addition to the antenna assembly 100, the electronic device 100 may also include a display screen 101, a mid-frame 102, a back cover, and a circuit board. Figure 6 (Not shown in the image).

[0088] The middle frame 102, as an important structural component of the electronic device 200, may include a middle plate and a frame surrounding the middle plate. The middle plate of the middle frame 102 can serve as a ground plane for the electronic device 200, providing electromagnetic shielding or a reference potential for circuit boards, antennas, etc., and reducing signal interference. The frame of the middle frame 102 can be a frame structure with through holes. The frame of the middle frame 102 can be a non-metallic frame or a metal frame such as aluminum alloy or magnesium alloy. For example, the frame of the middle frame 102 can be a rounded rectangular frame.

[0089] The display screen 101, the middle plate of the middle frame 102, and the back cover are stacked sequentially. Reception spaces are formed between the display screen 101 and the middle plate of the middle frame 102, and between the middle plate of the middle frame 102 and the back cover, to accommodate circuit boards, camera modules, batteries, various sensors, and other devices. One side of the frame of the middle frame 102 surrounds the edge of the display screen 101, and the other side surrounds the edge of the back cover, forming the complete external structure of the electronic device 200.

[0090] The back cover forms the external outline of the electronic device 200. During the molding process of the back cover, structures such as rear camera holes, fingerprint recognition modules, and antenna assembly mounting holes can be formed on the back cover. For example, the back cover can be a metal back cover or a non-metallic back cover, such as a plastic back cover or a glass back cover.

[0091] The circuit board can be housed in the receiving space formed by the frame and the back cover of the middle frame 102. The circuit board can be a printed circuit board (PCB) or a flexible printed circuit (FPC). Radio frequency circuitry for processing radio frequency signals can be integrated on the circuit board, as well as controllers for controlling the operation of the electronic device 200.

[0092] In addition, the electronic device in this embodiment can be a foldable electronic device or a flat-screen electronic device (non-foldable electronic device), and this embodiment does not limit it.

[0093] Of course, in practical applications, the position of the antenna assembly can be flexibly adjusted according to factors such as the specific shape, size, internal structure and antenna performance requirements of the electronic device, and this disclosure does not limit this.

[0094] Figure 7 This is a block diagram illustrating an electronic device according to some embodiments of the present disclosure. (Refer to...) Figure 7 The electronic device 700 may also include one or more of the following components: processing component 702, memory 704, power supply component 706, multimedia component 708, audio component 710, input / output (I / O) interface 712, sensor component 714, and communication component 716.

[0095] Processing component 702 typically controls the overall operation of electronic device 700, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 702 may include one or more processors 720 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 702 may include one or more modules to facilitate interaction between processing component 702 and other components. For example, processing component 702 may include a multimedia module to facilitate interaction between multimedia component 708 and processing component 702.

[0096] Memory 704 is configured to store various types of data to support the operation of device 700. Examples of this data include instructions for any application or method operating on electronic device 700, contact data, phonebook data, messages, pictures, videos, etc. Memory 704 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.

[0097] Power supply component 706 provides power to various components of electronic device 700. Power supply component 706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 700.

[0098] Multimedia component 708 includes a screen that provides an output interface between the electronic device 700 and the 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 the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 708 includes a front-facing camera and / or a rear-facing camera. When the device 700 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.

[0099] Audio component 710 is configured to output and / or input audio signals. For example, audio component 710 includes a microphone (MIC) configured to receive external audio signals when electronic device 700 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 704 or transmitted via communication component 716. In some embodiments, audio component 710 also includes a speaker for outputting audio signals.

[0100] I / O interface 712 provides an interface between processing component 702 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.

[0101] Sensor assembly 714 includes one or more sensors for providing state assessments of various aspects of electronic device 700. For example, sensor assembly 714 may detect the on / off state of device 700, the relative positioning of components such as the display and keypad of electronic device 700, changes in position of electronic device 700 or a component of electronic device 700, the presence or absence of user contact with electronic device 700, orientation or acceleration / deceleration of electronic device 700, and temperature changes of electronic device 700. Sensor assembly 714 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 714 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0102] Communication component 716 is configured to facilitate wired or wireless communication between electronic device 700 and other devices. Electronic device 700 can access wireless networks based on communication standards, such as WiFi, 3G, 4G, 7G, other communication standards, or combinations thereof. In some embodiments of this disclosure, communication component 716 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In some embodiments of this disclosure, communication component 716 further 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.

[0103] It should be understood that although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature. In the description herein, “a plurality” means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0104] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope of this disclosure is indicated by the following claims.

[0105] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An antenna assembly, characterized in that, include: The first antenna is electrically connected to the feed source; A tuning element, wherein the tuning element is electrically connected to the first antenna and the feed source respectively; The tuning element is used to switch the tuning state so that the first antenna operates in the target operating frequency band.

2. The antenna assembly according to claim 1, characterized in that, The first end of the tuning element is electrically connected to the first antenna, and the first end of the tuning element is electrically connected to the feed source.

3. The antenna assembly according to claim 1, characterized in that, The second terminal of the tuning element is grounded.

4. The antenna assembly according to claim 1, characterized in that, The tuning element is a varactor diode, which is used to switch the tuning state by changing the capacitance value.

5. The antenna assembly according to any one of claims 1 to 4, characterized in that, The target operating frequency band of the first antenna includes the mid-to-high frequency (MHB) band.

6. The antenna assembly according to claim 4, characterized in that, When the varactor diode is not subjected to a reverse bias voltage, the first antenna is in an initial state, and the target operating frequency band corresponding to the first antenna in the initial state is the B41 frequency band.

7. The antenna assembly according to any one of claims 1 to 4, characterized in that, Also includes: A matching circuit is electrically connected between the tuning element and the feed source.

8. The antenna assembly according to claim 7, characterized in that, The matching circuit includes a first capacitor, a second capacitor, and a first inductor; The first terminal of the first capacitor is electrically connected to the tuning element, the second terminal of the first capacitor is electrically connected to the first terminal of the first inductor, and the second terminal of the first inductor is electrically connected to the feed source; the second capacitor is electrically connected between the second terminal of the first inductor and the feed source.

9. The antenna assembly according to claim 1, characterized in that, The tuning element is a switching diode, which is used to switch the switching state to switch the tuning state.

10. An electronic device, characterized in that, The electronic device includes an antenna assembly as described in any one of claims 1-9.

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