Antenna assembly and electronic equipment

Abstract

The utility model provides an antenna assembly and electronic equipment, and relates to the technical field of electronic equipment. The antenna assembly comprises a radiation branch knot; a feed end; the matching circuit is electrically connected between the radiation branch knot and the feed end; the matching circuit comprises a first resonance circuit which comprises a first inductor, a first capacitor and a switch assembly. The switch assembly comprises a change-over switch and a plurality of tuning branches; the first capacitor is connected in parallel with the switch assembly; the first resonance circuit is used for generating resonance working in a first frequency band. By connecting the first capacitor beside the switch assembly in parallel, the equivalent capacitance influence of the switch assembly is eliminated, the frequency band range covered by the antenna assembly is increased, and the antenna performance is optimized.

Description

Technical Field

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

[0002] With the advent of the 5G era, mobile terminal devices need to support an increasing number of communication frequency bands, posing a significant challenge to antenna design. The trend towards thinner and lighter smartphones, higher screen-to-body ratios, and the addition of multiple cameras, motors, and other components further compresses the available space for antennas. To support multi-band communication, antenna design must achieve multi-band coverage within a limited space. Therefore, how to achieve coverage of multiple frequency bands within a limited space while simultaneously meeting the performance requirements of antennas for each frequency band has become a pressing issue in this field. Summary of the Invention

[0003] The purpose of this disclosure is to provide an antenna assembly and electronic device that at least partially solves the problem of limited internal space in electronic devices and the need for multi-band, high-performance antenna design.

[0004] According to a first aspect of the present disclosure, an antenna assembly is provided, the antenna assembly comprising: a radiating stub; a feed terminal electrically connected to the radiating stub; and a matching circuit electrically connected between the radiating stub and the feed terminal; the matching circuit includes at least a first resonant circuit; the first resonant circuit includes: a first inductor, a first capacitor, and a switching assembly; one end of the first inductor is electrically connected to the radiating stub, and the other end is grounded; the switching assembly includes a switching switch and a plurality of tuning branches; the common terminal of the switching switch is electrically connected to the radiating stub, and the switching terminal is switched to the plurality of tuning branches; the first capacitor is connected in parallel with the switching assembly; the first resonant circuit is used to generate resonance operating in a first frequency band.

[0005] In some exemplary embodiments of this disclosure, the matching circuit further includes a second resonant circuit; the second resonant circuit includes: the first inductor, the switching assembly, and the second capacitor; the second capacitor is connected in series between the radiating stub and the feed terminal; the second resonant circuit generates resonance operating in at least one frequency band by switching the connection of the plurality of tuning branches.

[0006] In some exemplary embodiments of this disclosure, the first switching terminal of the switch is connected to the first tuning branch; the first tuning branch is provided with a second inductor; in response to the switch switching to the first switching terminal, the second resonant circuit is used to generate resonance operating in the second frequency band.

[0007] In some exemplary embodiments of this disclosure, in response to the switching switch being in an open state, the second resonant circuit is used to generate resonance in the uplink frequency band operating in the second frequency band; in response to the switching switch being switched to the first switching terminal, the second resonant circuit is used to generate resonance in the downlink frequency band operating in the second frequency band.

[0008] In some exemplary embodiments of this disclosure, the second switching terminal of the switch is connected to the second tuning branch; a third inductor is provided on the second tuning branch; the third switching terminal of the switch is connected to the third tuning branch; a fourth inductor is provided on the third tuning branch; in response to the switch switching to the second switching terminal, the second resonant circuit is used to generate resonance in the uplink frequency band operating in the third frequency band; in response to the switch switching to the third switching terminal, the second resonant circuit is used to generate resonance in the downlink frequency band operating in the third frequency band.

[0009] In some exemplary embodiments of this disclosure, the fourth switching terminal of the switching switch is connected to the fourth tuning branch; the fourth tuning branch is provided with a fifth inductor; one end of the fifth inductor is electrically connected to the fourth switching terminal, and the other end is electrically connected between the second capacitor and the feed terminal; in response to the switching switch switching to the fourth switching terminal, the second resonant circuit is used to generate resonance operating in the fourth frequency band.

[0010] In some exemplary embodiments of this disclosure, a sixth inductor is further included; one end of the sixth inductor is electrically connected to the radiating branch, and the other end is electrically connected between the common terminal of the switching switch and the second capacitor.

[0011] In some exemplary embodiments of this disclosure, the matching circuit further includes a third resonant circuit; the third resonant circuit includes a seventh inductor and a third capacitor; the seventh inductor is connected in series between the second capacitor and the feed terminal; one end of the third capacitor is electrically connected to the feed terminal, and the other end is grounded; the third resonant circuit is used to generate resonance operating in the fifth frequency band.

[0012] In some exemplary embodiments of this disclosure, the first frequency band is the B41 frequency band; the second frequency band is the B3 frequency band; the third frequency band is the B1 frequency band; the fourth frequency band is the B40 frequency band; and the fifth frequency band is the N78 frequency band.

[0013] According to a second aspect of the present disclosure, an electronic device is provided, the electronic device including the antenna assembly described above.

[0014] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0015] The antenna assembly in this embodiment includes a radiating stub, a feed terminal, and a matching circuit. The matching circuit, by connecting a first capacitor in parallel next to the switching assembly, eliminates the influence of the equivalent capacitance of the switching assembly while adding an additional resonant circuit. Through this antenna design, the antenna assembly expands the covered frequency band range while eliminating the influence of the equivalent capacitance of the switching assembly, thus optimizing antenna performance.

[0016] 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

[0017] 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.

[0018] Figure 1 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure.

[0019] Figure 2 This is a circuit of a matching circuit shown according to an exemplary embodiment of the present disclosure. Figure 1 .

[0020] Figure 3 This is a circuit of a matching circuit shown according to an exemplary embodiment of the present disclosure. Figure 2 .

[0021] Figure 4 This is a schematic Smith chart of a conventional antenna assembly illustrated according to an exemplary embodiment of the present disclosure.

[0022] Figure 5 This is an S-parameter graph of an antenna assembly illustrated according to an exemplary embodiment of the present disclosure.

[0023] Figure 6 This is a structural diagram of an electronic device according to an exemplary embodiment of the present disclosure.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100. Antenna assembly; 110. Radiating stub; 120. Feed terminal; 130. Matching circuit; 135. Switch assembly; L1. First inductor; L2. Second inductor; L3. Third inductor; L4. Fourth inductor; L5. Fifth inductor; L6. Sixth inductor; L7. Seventh inductor; C1. First capacitor; C2. Second capacitor; C3. Third capacitor; SW. Switch. Detailed Implementation

[0026] Exemplary embodiments of this disclosure will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. 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, descriptions of features known in the art may be omitted for clarity and brevity.

[0027] The embodiments described below, which are examples of some of the embodiments of this disclosure, do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0028] Antenna assemblies and electronic devices according to embodiments of the present disclosure are described below with reference to the accompanying drawings.

[0029] Figure 1 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure. Figure 1 As shown, the antenna assembly 100 includes: a radiating stub 110, a feed terminal 120, and a matching circuit 130.

[0030] The radiating stub 110 is used to radiate or receive electromagnetic waves. By adjusting the length and shape of the radiating stub to match the wavelength of a specific frequency band, efficient signal transmission and reception can be achieved.

[0031] The power supply terminal 120 is electrically connected to the radiating stub 110 for transmitting and receiving radio frequency signals.

[0032] Matching circuit 130 is electrically connected between the radiating stub 110 and the feed terminal 120. Matching circuit 130 is used to adjust the impedance between the radiating stub 110 and the feed terminal 120 to match the radio frequency signal transmission characteristics of a specific frequency band.

[0033] In related technologies, to meet the requirement of covering multiple frequency bands within a limited space, antenna assemblies incorporate switching components in their matching circuits. One or more tuning branches are set at the switching terminals of these components, allowing the antenna assembly to cover different frequency bands by switching between them. This method enables a single antenna to simultaneously cover multiple frequency bands. However, when the switching component is in the off state (i.e., all switching terminals are off), the individual switches form a multi-parallel capacitor, which can be equivalent to a small capacitor, denoted as C. offThis equivalent capacitance affects the resonant design of the original matching circuit, potentially causing resonance shift and thus impacting antenna performance. This is especially true for the mid-to-high frequency bands, where the higher frequencies make the antenna more susceptible to these factors, leading to frequency deviation or performance degradation.

[0034] Figure 2 This is a circuit of a matching circuit shown according to an exemplary embodiment of the present disclosure. Figure 1 .like Figure 2 As shown, the matching circuit 130 of this disclosure includes the following structure.

[0035] The matching circuit 130 includes at least a first resonant circuit. The first resonant circuit includes: a first inductor L1, a first capacitor C1, and a switching assembly 135.

[0036] One end of the first inductor L1 is electrically connected to the radiating stub 110, and the other end is grounded.

[0037] The switching assembly 135 includes a switching switch SW and multiple tuning branches. The common terminal of the switching switch SW is electrically connected to the radiating stub 110, and the switching terminal is switched to the multiple tuning branches.

[0038] The first capacitor C1 is connected in parallel with the switching assembly 135.

[0039] The first resonant circuit, consisting of the first inductor L1, the first capacitor C1, and the switching assembly 135, is used to generate resonance operating in the first frequency band.

[0040] In this embodiment of the disclosure, in order to solve the problem of the equivalent capacitance C of the above-mentioned switching component off The problem is that a first capacitor C1 is connected in parallel next to the switching assembly 135. This first capacitor C1 has a capacitance of C1 equal to the equivalent capacitance C of the switching assembly. off The total capacitance of the parallel capacitor bank is C1 + C off Because the equivalent capacitance C of the switching component... off It is a relatively small capacitor, so the change in the opening and closing state of the switching component has a relatively small impact on the total capacitance of this parallel capacitor bank. By introducing this first parallel capacitor C1, the equivalent capacitance C, which was originally a factor of resonance interference, is reduced. off It becomes semi-controllable, and by adjusting the capacitance value of C1, the switching component is incorporated into the resonant design of the antenna component. The total capacitance of the first inductor L1 and the parallel capacitor bank is C1+C. off The first resonant circuit is designed to generate resonance operating in the first frequency band, thereby increasing the operating frequency band coverage of the antenna assembly.

[0041] It should be noted that this disclosure solves the problem of the equivalent capacitance C of the switching assembly when it is in the off state by introducing a first capacitor C1 in parallel next to the switching assembly. off Interference issues. No limitations are placed on how the multiple tuning branches of the switching assembly itself are designed to provide tuning in different frequency bands. Regardless of the tuning branch design of the switching assembly, it should be considered within the scope of protection of this disclosure.

[0042] In an exemplary embodiment, the first frequency band may be the B41 (Band 41) band, with a frequency range of 2496MHz to 2690MHz.

[0043] In an exemplary embodiment, the antenna assembly can also cover other different frequency bands through additional resonant circuit designs in the matching circuit. For example, the MHB (Middle High Band), B3, B1, B40, and N78 bands.

[0044] The antenna assembly in this embodiment includes a radiating stub, a feed terminal, and a matching circuit. The matching circuit, by connecting a first capacitor in parallel next to the switching assembly, eliminates the influence of the equivalent capacitance of the switching assembly while adding an additional resonant circuit. Through this antenna design, the antenna assembly expands the covered frequency band range while eliminating the influence of the equivalent capacitance of the switching assembly, thus optimizing antenna performance.

[0045] In some embodiments, such as Figure 2 As shown, the matching circuit 130 of this disclosure may further include a second resonant circuit.

[0046] The second resonant circuit includes: the first inductor L1, the switching assembly 135, and the second capacitor C2. The second capacitor C2 is connected in series between the radiating stub 110 and the feed terminal 120.

[0047] By switching different tuning branches through the switching assembly 135, the tuning elements on the corresponding tuning branches are introduced into the second resonant circuit, so that the second resonant generates resonances that operate in multiple different frequency bands.

[0048] In an exemplary embodiment, the switching switch SW of the switching assembly 135 can be a single-pole multi-throw switch. The common terminal of the switching switch SW is electrically connected to the radiating stub 110, and multiple switching terminals are respectively connected to multiple different tuning branches. Different tuning branches are provided with different tuning elements. The switching assembly 135 controls the single-pole multi-throw switch to connect to the corresponding switching terminal according to operational needs, thereby generating resonance operating in the corresponding frequency band. The tuning element can be a capacitor, an inductor, or a combination of a capacitor and an inductor.

[0049] In some embodiments, such as Figure 2 As shown, the switch SW has a first switching terminal. This first switching terminal is connected to a first tuning branch. A second inductor L2 is provided on this first tuning branch. One end of the second inductor L2 is electrically connected to the first switching terminal, and the other end is grounded.

[0050] In response to the switching switch SW switching to the first switching terminal, the second resonant circuit composed of the first inductor L1, the second inductor L2, and the second capacitor C2 is used to generate resonance operating in the second frequency band.

[0051] In an exemplary embodiment, the second frequency band can be the B3 (Band 3) band, with a frequency range of 1710MHz to 1880MHz. Specifically, the uplink frequency range is 1710MHz to 1785MHz, and the downlink frequency range is 1805MHz to 1880MHz.

[0052] In an exemplary embodiment, the uplink and downlink bands of the B3 band are divided into different frequency ranges. To better achieve antenna optimization effects in the relevant frequency bands, resonant circuits can be designed separately for the uplink and downlink bands of the B3 band.

[0053] In response to the switch SW being in the off state, i.e. not connected to any switching terminal, the second resonant circuit composed of the first inductor L1 and the second capacitor C2 is used to generate resonance in the uplink frequency band operating in the second frequency band.

[0054] In response to the switching switch SW switching to the first switching terminal, the second resonant circuit composed of the first inductor L1, the second inductor L2, and the second capacitor C2 is used to generate resonance in the downlink frequency band operating in the second frequency band.

[0055] In some embodiments, such as Figure 2 As shown, the switch SW has a second switching terminal and a third switching terminal. The second switching terminal is connected to the second tuning branch. A third inductor L3 is provided on the second tuning branch. One end of the third inductor L3 is electrically connected to the second switching terminal, and the other end is grounded. The third switching terminal is connected to the third tuning branch. A fourth inductor L4 is provided on the third tuning branch. One end of the fourth inductor L4 is electrically connected to the third switching terminal, and the other end is grounded.

[0056] In response to the switching switch SW switching to the second switching terminal, the second resonant circuit composed of the first inductor L1, the third inductor L3, and the second capacitor C2 is used to generate resonance in the uplink frequency band operating in the third frequency band.

[0057] In response to the switching switch SW switching to the third switching terminal, the second resonant circuit composed of the first inductor L1, the fourth inductor L4, and the second capacitor C2 is used to generate resonance in the downlink frequency band operating in the third frequency band.

[0058] In an exemplary embodiment, the second frequency band can be the B1 (Band 1) band, with a frequency range of 1920MHz to 2170MHz. Specifically, the uplink frequency range is 1920MHz to 1980MHz, and the downlink frequency range is 2110MHz to 2170MHz.

[0059] In some embodiments, such as Figure 2 As shown, the switch SW has a fourth switching terminal. This fourth switching terminal is connected to the fourth tuning branch. A fifth inductor L5 is provided on the fourth tuning branch. One end of the fifth inductor L5 is electrically connected to the fourth switching terminal, and the other end is electrically connected between the second capacitor C3 and the feed terminal 120.

[0060] In response to the switching switch SW being switched to the fourth switching terminal, the second resonant circuit, composed of the first inductor L1, the fifth inductor L5, and the second capacitor C2, is used to generate resonance operating in the fourth frequency band.

[0061] In an exemplary embodiment, the fourth frequency band may be the B40 (Band 40) band, with a frequency range of 2300MHz to 2400MHz.

[0062] Figure 3 This is a circuit of a matching circuit shown according to an exemplary embodiment of the present disclosure. Figure 2 .

[0063] As can be seen from the foregoing embodiments, in this disclosure, the first resonant circuit and the second resonant circuit share the first inductor L1. This first inductor L1 must satisfy both the resonant design requirements of the first resonant circuit operating in the first frequency band and the resonant design requirements of the second resonant circuit operating in the second to fourth frequency bands. Therefore, this increases the design difficulty of the first inductor L1. To simplify the design of the first inductor L1...

[0064] In some embodiments, such as Figure 3 As shown, the matching circuit also includes a sixth inductor L6. One end of the sixth inductor L6 is electrically connected to the radiating stub 110, and the other end is electrically connected between the common terminal of the switching switch SW and the second capacitor C2. Figure 3 As shown, since the sixth inductor L6 is designed between the first capacitor C1 and the second capacitor C2, by adjusting the values ​​between the first inductor L1 and the sixth inductor L6, the first resonant circuit and the second resonant circuit can more easily meet the resonant design requirements of the relevant operating frequency band.

[0065] In some embodiments, such as Figure 2 As shown, the matching circuit 130 of this disclosure may further include a third resonant circuit.

[0066] The third resonant circuit includes a seventh inductor L7 and a third capacitor C3. The seventh inductor L7 is connected in series between the second capacitor C2 and the feed terminal 120. One end of the third capacitor C3 is electrically connected to the feed terminal 120, and the other end is grounded.

[0067] The third resonant circuit, consisting of the seventh inductor L7 and the third capacitor C3, is used to generate resonance operating in the fifth frequency band.

[0068] In an exemplary embodiment, the fifth frequency band can be the N78 band, and its frequency range can be from 3300MHz to 3800MHz.

[0069] In this embodiment of the disclosure, such as Figure 2 As shown, the matching circuit 130 of this disclosure provides a first resonant circuit, a second resonant circuit, and a third resonant circuit. By designing different resonant circuits and switching different terminals of the switching assembly, the antenna assembly can cover the MHB band, B41 band, B3 band, B1 band, B40 band, and N78 band, achieving multi-band coverage. In particular, by using a first capacitor C1 connected in parallel next to the switching assembly, the equivalent capacitance C of the switching assembly is eliminated. off In addition to addressing the issue, an extra resonant circuit was added, thus achieving a triple-resonance configuration. Those skilled in the art can select a portion of the resonant circuit design or adjust the parameters of the resonant components to cover different frequency bands, depending on the specific application scenario, as long as the equivalent capacitance C of the switching component is eliminated by connecting the first capacitor C1 in parallel. off All issues should be considered to fall within the scope of protection of this disclosure.

[0070] Figure 4 This is a schematic Smith chart of a conventional antenna assembly illustrated according to an exemplary embodiment of the present disclosure. The conventional antenna assembly has an equivalent capacitance C of the switching component. off The problem caused a significant change in the Smith chart of the antenna assembly. For example... Figure 4 As shown, the resonant point of the B3 band shifts from port 1 to port 4, while the resonant point of the 3.6GHz band (the main band of N78) shifts from port 3 to port 6. This shift indicates that the equivalent capacitance C of the switching component... off The introduction of this will cause the resonant frequency of the antenna to shift, especially in the mid-to-high frequency range, and this shift will seriously affect the performance of the antenna.

[0071] In this embodiment of the disclosure, by connecting a first capacitor C1 in parallel next to the switching component, the equivalent capacitance C of the switching component is eliminated. off In addition to addressing the problem, an extra resonant circuit was added, changing the existing dual-resonant circuit into a triple-resonant circuit.

[0072] Figure 5 This is an S-parameter graph of an antenna assembly illustrated according to an exemplary embodiment of this disclosure. For example... Figure 5 As shown, the switching component provided in this disclosure achieves switching between the B3, B1, and B40 frequency bands while ensuring that the resonance of the N78 and B41 frequency bands, which are crucial in 5G communication, remains unchanged. Simultaneously, through the design of the aforementioned first resonant circuit, the antenna performance is not affected by the equivalent capacitance C of the switching component during switching. off To mitigate the impact of the issue, ensure that the antenna performance of the N78 and B41 bands remains undegraded. Figure 5 The results show the efficiency performance of the antenna assembly in the mid-to-high frequency bands, with an overall efficiency of around -4dB. This indicates that the antenna assembly performs well in multi-band coverage, achieving high-performance coverage across multiple frequency bands while ensuring stable performance in key frequency bands (such as B41 and N78).

[0073] An exemplary embodiment of this disclosure also provides an electronic device that may include the antenna assembly described above.

[0074] The electronic devices provided in this disclosure can be mobile phones, tablets, e-readers, MP3 players, MP4 players, laptops, in-vehicle systems or desktop computers, portable terminals, laptop terminals, desktop terminals, action cameras, drones, monitor cameras and similar products.

[0075] like Figure 6 As shown, the electronic device 60 may also include one or more of the following components: a processing component 602, a memory 604, a power supply component 606, a multimedia component 608, an audio component 610, an input / output (I / O) interface 612, a sensor component 614, and a communication component 616.

[0076] Processing component 602 typically controls the overall operation of electronic device 600, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 602 may include one or more processors 620 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 602 may include one or more modules to facilitate interaction between processing component 602 and other components. For example, processing component 602 may include a multimedia module to facilitate interaction between multimedia component 608 and processing component 602.

[0077] Memory 604 is configured to store various types of data to support the operation of device 600. Examples of this data include instructions for any application or method operating on electronic device 600, contact data, phonebook data, messages, pictures, videos, etc. Memory 604 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.

[0078] Power supply component 606 provides power to various components of electronic device 600. Power supply component 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 600.

[0079] Multimedia component 608 includes a screen that provides an output interface between the electronic device 600 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 608 includes a front-facing camera and / or a rear-facing camera. When the device 600 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.

[0080] Audio component 610 is configured to output and / or input audio signals. For example, audio component 610 includes a microphone (MIC) configured to receive external audio signals when electronic device 600 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 604 or transmitted via communication component 616. In some embodiments, audio component 610 also includes a speaker for outputting audio signals.

[0081] I / O interface 612 provides an interface between processing component 602 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.

[0082] Sensor assembly 614 includes one or more sensors for providing state assessments of various aspects of electronic device 600. For example, sensor assembly 614 may detect the on / off state of device 600, the relative positioning of components such as the display and keypad of electronic device 600, changes in position of electronic device 600 or a component of electronic device 600, the presence or absence of user contact with electronic device 600, orientation or acceleration / deceleration of electronic device 600, and temperature changes of electronic device 600. Sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 614 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0083] Communication component 616 is configured to facilitate wired or wireless communication between electronic device 600 and other devices. Electronic device 600 can access wireless networks based on communication standards, such as WiFi, 3G, 4G, 5G, other communication standards, or combinations thereof. In some embodiments of this disclosure, communication component 616 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 616 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.

[0084] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This 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 examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0085] 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 by include: Radiating branches; The feed terminal is electrically connected to the radiating branch; A matching circuit is electrically connected between the radiating stub and the feed terminal; The matching circuit includes at least a first resonant circuit; The first resonant circuit includes: a first inductor, a first capacitor, and a switching assembly; one end of the first inductor is electrically connected to the radiating stub, and the other end is grounded; the switching assembly includes a switching switch and multiple tuning branches; the common terminal of the switching switch is electrically connected to the radiating stub, and the switching terminal is switched to the multiple tuning branches; the first capacitor is connected in parallel with the switching assembly; the first resonant circuit is used to generate resonance operating in a first frequency band.

2. The antenna assembly of claim 1, wherein, The matching circuit also includes a second resonant circuit; The second resonant circuit includes: the first inductor, the switching assembly, and the second capacitor; the second capacitor is connected in series between the radiating stub and the feed terminal; the second resonant circuit generates resonance operating in at least one frequency band by switching the connection of the plurality of tuning branches.

3. The antenna assembly of claim 2, wherein, The first switching terminal of the switch is connected to the first tuning branch; a second inductor is provided on the first tuning branch. In response to the switching switch being switched to the first switching terminal, the second resonant circuit is used to generate resonance operating in the second frequency band.

4. The antenna assembly according to claim 3, characterized in that, In response to the switch being in the off state, the second resonant circuit is used to generate resonance in the uplink frequency band operating in the second frequency band; In response to the switching switch being switched to the first switching terminal, the second resonant circuit is used to generate resonance in the downlink frequency band operating in the second frequency band.

5. The antenna assembly of claim 2, wherein, The second switching terminal of the switch is connected to the second tuning branch; a third inductor is provided on the second tuning branch; the third switching terminal of the switch is connected to the third tuning branch; a fourth inductor is provided on the third tuning branch; In response to the switching switch being switched to the second switching terminal, the second resonant circuit is used to generate resonance in the uplink frequency band operating in the third frequency band; In response to the switching switch being switched to the third switching terminal, the second resonant circuit is used to generate resonance in the downlink frequency band operating in the third frequency band.

6. The antenna assembly of claim 2, wherein, The fourth switching terminal of the switching switch is connected to the fourth tuning branch; a fifth inductor is provided on the fourth tuning branch; one end of the fifth inductor is electrically connected to the fourth switching terminal, and the other end is electrically connected between the second capacitor and the feed terminal; In response to the switching switch being switched to the fourth switching terminal, the second resonant circuit is used to generate resonance operating in the fourth frequency band.

7. The antenna assembly of claim 2, wherein, Also includes: Sixth inductor; One end of the sixth inductor is electrically connected to the radiating branch, and the other end is electrically connected between the common terminal of the switching switch and the second capacitor.

8. The antenna assembly of claim 2, wherein, The matching circuit also includes a third resonant circuit; The third resonant circuit includes a seventh inductor and a third capacitor; the seventh inductor is connected in series between the second capacitor and the feed terminal; one end of the third capacitor is electrically connected to the feed terminal, and the other end is grounded; the third resonant circuit is used to generate resonance operating in the fifth frequency band.

9. The antenna assembly of claim 1, wherein, The first frequency band is the B41 band.

10. The antenna assembly of claim 3, wherein, The second frequency band is the B3 band.

11. The antenna assembly of claim 5, wherein, The third frequency band is the B1 band.

12. The antenna assembly of claim 6, wherein, The fourth frequency band is the B40 frequency band.

13. The antenna assembly of claim 8, wherein, The fifth frequency band is the N78 frequency band.

14. An electronic device, comprising: The electronic device includes the antenna assembly as described in any one of claims 1 to 13.

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