Antenna assembly and electronic device
By designing multiple feed sources and matching circuits, and combining switching and tuning circuits, the effective integration of multi-band antennas was achieved, solving the problem of meeting the performance requirements of each frequency band within a limited space, and improving the antenna's tuning freedom and radiation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING XIAOMI MOBILE SOFTWARE CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-05
AI Technical Summary
Existing technologies make it difficult to achieve effective integrated design of multi-band antennas within a limited space and meet the performance requirements of each frequency band.
The design employs multiple feed sources and matching circuits, combined with switching and tuning circuits. The first matching circuit achieves resonance in the first frequency band, the second matching circuit achieves resonance in the second frequency band, and the switching circuits tune and isolate different frequency bands. The third matching circuit achieves resonance in the third frequency band, and the coupling gaps enhance radiation efficiency.
It achieves effective integration of multi-band antennas, reduces space costs, increases debugging flexibility, meets the performance requirements of each frequency band, and enhances radiation efficiency.
Smart Images
Figure CN224328900U_ABST
Abstract
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 development of technology, the functions of electronic devices are becoming increasingly diverse and complex. As users continue to expand the functions of electronic devices, antenna design faces enormous challenges. On the one hand, to support multi-band and multi-functional operation, antenna systems need to support more frequency bands. Furthermore, due to stringent requirements on the size and portability of electronic devices, the internal space available for these devices is becoming more limited.
[0003] Therefore, there is an urgent need for an effective integrated design that can realize multi-band antennas in a limited space and meet the performance requirements of antennas in each band. Utility Model Content
[0004] To overcome the problems existing in the related technologies, this disclosure provides an antenna assembly and an electronic device.
[0005] According to a first aspect of the present disclosure, an antenna assembly is provided, comprising:
[0006] First radiating branch;
[0007] A first feed source, the first feed source being electrically connected to the first radiating branch via a first matching circuit, the first matching circuit including at least a first tuning circuit and a first switching circuit, the first feed source being electrically connected to the first switching circuit via the first tuning circuit;
[0008] The second feed source is electrically connected to the first radiating branch through a second matching circuit. The second matching circuit includes at least a second tuning circuit and a second switching circuit. The second feed source is electrically connected to the second switching circuit through the second tuning circuit.
[0009] The first matching circuit is used to make the first radiating stub resonate in the first frequency band, the second matching circuit is used to make the first radiating stub resonate in the second frequency band, and the first switching circuit is used to tune the second frequency band.
[0010] In some exemplary embodiments of this disclosure, the first switching circuit includes a first switching switch and a plurality of switching branches, the switching terminal of the first switching switch is switched to connect to the plurality of switching branches, and the common terminal of the first switching switch is grounded.
[0011] By switching the connection to different switch branches using the first switching switch, the capacitance value in the first switching circuit becomes different, thereby achieving tuning of the second frequency band.
[0012] In some exemplary embodiments of this disclosure, the first switching circuit includes at least a first switching branch and a second switching branch among the plurality of switching branches;
[0013] The first switching branch includes a first capacitor, and the second switching branch includes a first inductor. The first capacitor and the first inductor are used to generate LC parallel resonance operating in the first frequency band.
[0014] By having the first switching branch and the second switching branch of the first switching circuit work simultaneously, the isolation between the first frequency band and the second frequency band can be improved, thereby enhancing the antenna performance of the antenna assembly in the first frequency band and the second frequency band.
[0015] In some exemplary embodiments of this disclosure, the first tuning circuit includes at least a second inductor and a second capacitor;
[0016] The first feed source is electrically connected to the first end of the second inductor, the second end of the second inductor is electrically connected to the first end of the second capacitor, and the second end of the second capacitor is electrically connected to the first switching circuit.
[0017] By setting a second inductor L2 and a second capacitor C2, the first frequency band can be tuned and the antenna performance of the first frequency band can be improved.
[0018] In some exemplary embodiments of this disclosure, the second switching circuit includes a second switching switch and a plurality of switching branches, the switching terminal of the second switching switch is switched to connect to the plurality of switching branches, and the common terminal of the second switching switch is grounded.
[0019] By switching the connection to different switch branches via the second switch, the antenna assembly can cover different frequency bands, thus fulfilling the need for a single antenna to cover multiple frequency bands simultaneously.
[0020] In some exemplary embodiments of this disclosure, the second tuning circuit includes at least a third inductor.
[0021] The third inductor can be used to isolate the first frequency band, further improving the isolation between the first and second frequency bands, and enhancing the antenna performance of the antenna assembly in both the first and second frequency bands.
[0022] In some exemplary embodiments of this disclosure, the antenna assembly further includes:
[0023] The second radiating branch has a coupling gap between its first end and the second end of the first radiating branch, so that the first radiating branch constitutes a parasitic branch of the second radiating branch.
[0024] The third feed source is electrically connected to the second radiating branch through a third matching circuit;
[0025] The third matching circuit is used to cause the second radiating stub to resonate in the third frequency band.
[0026] The second radiating stub can achieve electromagnetic coupling with the first radiating stub through the coupling slot, thereby enhancing the radiation efficiency of the antenna assembly 110. Furthermore, this disclosure can realize a full-band antenna assembly covering the first, second, and third frequency bands.
[0027] In some exemplary embodiments of this disclosure, the first switching circuit and the second switching circuit are further configured to adjust the length of the parasitic branch.
[0028] The length of the parasitic stub is adjusted by using the first and second switching circuits, which increases the tuning freedom of the third frequency band and improves the performance of the third frequency band antenna.
[0029] In some exemplary embodiments of this disclosure, the third matching circuit includes at least a third switching circuit, the third switching circuit including a third switching switch and a plurality of switching branches, the switching terminal of the third switching switch being switched to the plurality of switching branches, and the common terminal of the third switching switch being electrically connected to the second radiating branch.
[0030] The embodiments of this disclosure can achieve tuning of the third frequency band through the third switching circuit, thereby improving the performance of the third frequency band antenna.
[0031] In some exemplary embodiments of this disclosure, the first frequency band is the UWB (Ultra-Wideband) band, the second frequency band is the LB (Low Band) band and / or the Sub-6G (below 6 GHz) band, and the third frequency band is the MHB (Middle and High Band) band.
[0032] 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.
[0033] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:
[0034] This disclosure enables resonance of the first frequency band through a first matching circuit and resonance of the second frequency band through a second matching circuit. This disclosure effectively integrates the first and second frequency bands onto the same radiating stub, reducing space costs. Furthermore, this disclosure allows for further tuning of the second frequency band based on a first switching circuit. Therefore, this disclosure ensures the antenna's tuning flexibility, thereby meeting the performance requirements of antennas in each frequency band.
[0035] 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
[0036] 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.
[0037] Figure 1 This is a structural diagram of an antenna assembly shown according to some embodiments of the present disclosure.
[0038] Figure 2 This is a structural diagram of another antenna assembly shown according to some embodiments of the present disclosure.
[0039] Figure 3 This is a structural diagram of another antenna assembly shown according to some embodiments of the present disclosure.
[0040] Figure 4 This is a structural diagram of another antenna assembly shown according to some embodiments of the present disclosure.
[0041] Figure 5 This is a structural diagram of an electronic device according to some embodiments of the present disclosure.
[0042] Figure 6 This is a block diagram illustrating an electronic device according to some embodiments of the present disclosure. Detailed Implementation
[0043] 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.
[0044] 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 of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.
[0045] The specific implementation methods of the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.
[0046] 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 first radiating stub 110, a first feed 120, a second feed 130, a first matching circuit 140, and a second matching circuit 150.
[0047] The first radiating stub 110 can be used to radiate or receive electromagnetic waves, and by adjusting the length and shape of the radiating stub, it can match the wavelength of a specific frequency band, thereby achieving efficient signal transmission and reception. The first feed 120 and the second feed 130 can transmit and receive radio frequency signals, respectively.
[0048] For example, the first feed 120 can be electrically connected to the first radiating stub 110 through the first matching circuit 140, the first matching circuit 140 including at least the first tuning circuit 141 and the first switching circuit 142, and the first feed 120 is electrically connected to the first switching circuit 142 through the first tuning circuit 141.
[0049] Furthermore, the second feed 130 can be electrically connected to the first radiating stub 110 through the second matching circuit 150. The second matching circuit 150 includes at least a second tuning circuit 151 and a second switching circuit 152. The second feed 130 is electrically connected to the second switching circuit 152 through the second tuning circuit 151.
[0050] The first matching circuit 140 is used to make the first radiating stub 110 resonate in the first frequency band, the second matching circuit 150 is used to make the first radiating stub 110 resonate in the second frequency band, and the first switching circuit 142 is used to tune the second frequency band.
[0051] In an exemplary embodiment, the first feed 120 and the second feed 130 are configured as a dual-feed on the same side. The first feed 120 can feed the first radiating stub 110 through the first matching circuit 140, and the second feed 130 can feed the first radiating stub 110 through the second matching circuit 150. Therefore, this disclosure can enable the first radiating stub 110 to cover multiple frequency bands.
[0052] In some exemplary embodiments, the first frequency band is the UWB band, and the second frequency band is the LB band and / or the Sub-6G band. Therefore, in some embodiments, the second feed 130 can realize the LB band and / or the Sub-6G band through the second switching circuit 152, wherein the Sub-6G band may include, for example, the N77 band and the N78 band.
[0053] This disclosure enables resonance of the first frequency band through a first matching circuit and resonance of the second frequency band through a second matching circuit. This disclosure effectively integrates the first and second frequency bands onto the same radiating stub, reducing space costs. Furthermore, this disclosure allows for further tuning of the second frequency band based on a first switching circuit. Therefore, this disclosure ensures the antenna's tuning flexibility, thereby meeting the performance requirements of antennas in each frequency band.
[0054] Figure 2 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure. The structure of the second matching circuit 150 provided in the embodiments of the present disclosure can be as follows: Figure 2 As shown.
[0055] The second switching circuit 152 may include a second switching switch SW2 and multiple switching branches. The switching terminal of the second switching switch SW2 is connected to multiple switching branches, and the common terminal of the second switching switch SW2 is grounded.
[0056] In an exemplary embodiment, each switch circuit in the second switch circuit 152 may be provided with a capacitor and / or a resistor.
[0057] It should be noted that the second switching circuit 152 is connected to different switching branches via the second switching switch SW2, which enables the antenna assembly to cover different frequency bands. Therefore, embodiments of this disclosure can enable a single antenna to simultaneously meet the needs of multiple frequency band coverage, such as at least one of the LB band, N78 band, and N77 band.
[0058] This disclosure does not limit the number of switch circuits in the second switch circuit 152, or the components disposed on each switch circuit, such as... Figure 2 As shown, the second switching circuit 152 may include four switching circuits, namely RF1, RF2, RF3, and RF4. RF1 and RF2 may each contain a capacitor, and RF3 and RF4 may each contain an inductor.
[0059] It should be noted that in other embodiments, the second switching circuit 152 may also include 2 switching circuits, 3 switching circuits, 6 switching circuits, etc., and each switching circuit may be provided with at least one capacitor and / or at least one resistor.
[0060] In an exemplary embodiment, the first switching circuit 142 can be used to tune the second frequency band.
[0061] In some exemplary embodiments, such as Figure 2 As shown, the first switching circuit 142 may include a first switching switch SW1 and multiple switching branches. The switching terminal of the first switching switch SW1 is connected to multiple switching branches, and the common terminal of the first switching switch 1421 is grounded.
[0062] This disclosure does not limit the number of switch circuits in the first switch circuit 142, nor the components disposed on each switch circuit in the first switch circuit 142. Figure 2 As shown, the first switching circuit 142 may include four switching circuits, namely RF5, RF6, RF7, and RF8. Each of RF5, RF6, and RF7 may contain a capacitor, and RF8 may contain an inductor.
[0063] In an exemplary embodiment, such as Figure 2 In the first switching circuit 142 shown, the first switching switch SW1 can be switched to different switching branches, thereby changing the capacitance value connected to the first switching circuit 142, thus achieving tuning of the second frequency band.
[0064] For example, the second frequency band may include the LB band and the N77 / N78 band. Specific frequency bands within the LB band can be tuned based on the capacitor state of the first switching circuit 142. It should be noted that, in this embodiment, the LB band antenna and the N77 / N78 band antenna can be implemented using the second switching circuit 152. Furthermore, this disclosure also allows for tuning of specific frequency bands within the LB band based on the capacitor state of the first switching circuit 142. Therefore, this embodiment can effectively improve the tuning flexibility of the LB band.
[0065] In some exemplary embodiments, the first switching circuit 142 includes at least a first switching branch and a second switching branch among the plurality of switching branches. The first switching branch may include a first capacitor C1, and the second switching branch may include a first inductor L1. The first capacitor C1 and the first inductor L1 are used to generate LC parallel resonance operating in a first frequency band.
[0066] For example, in Figure 2 In the first switching circuit 142 shown, the first switching branch can be RF7, and the second switching branch can be RF8. When the first switching branch and the second switching branch are simultaneously connected to the first switching circuit 142, the first capacitor C1 and the first inductor L1 can form an LC parallel resonance.
[0067] It should be noted that the LC parallel resonance can operate in the first frequency band. Since the LC parallel resonance is equivalent to infinite resistance at the resonant point, it can be similar to an open state. Therefore, by having the first switching branch and the second switching branch of the first switching circuit 142 work simultaneously, the isolation between the first frequency band and the second frequency band can be improved, thereby enhancing the antenna performance of the antenna assembly 100 in the first frequency band and the second frequency band.
[0068] In an exemplary embodiment, the other switch branches in the first switch circuit 142, besides the first switch branch and the second switch branch, can be used to tune specific frequency bands in the second frequency band.
[0069] It should be noted that in other embodiments, the first switching circuit 142 may also include 3 switching circuits, 5 switching circuits, or 6 switching circuits, etc. In each of the other switching branches besides the first switching branch and the second switching branch, at least one capacitor and / or at least one resistor may be provided. This disclosure does not limit this.
[0070] In some exemplary embodiments, the first tuning circuit 141 includes at least a second inductor L2 and a second capacitor C2.
[0071] In an exemplary embodiment, both the second inductor L2 and the second capacitor C2 are connected in series with the first feed source 120. For example... Figure 2 As shown, the first feed 120 is electrically connected to the first end of the second inductor L2, the second end of the second inductor L2 is electrically connected to the first end of the second capacitor C2, and the second end of the second capacitor C2 is electrically connected to the first switching circuit 142.
[0072] It should be noted that, in this embodiment of the present disclosure, tuning of the first frequency band can be achieved by setting a second inductor L2 and a second capacitor C2. This disclosure allows adjustment of the position of the first frequency band on the Smith chart using the second inductor L2 and the second capacitor C2, thus adjusting the input impedance corresponding to the first frequency band and improving the antenna performance of the first frequency band.
[0073] In some exemplary embodiments, the second matching circuit 150 includes a second tuning circuit 151, wherein the second tuning circuit 151 includes at least a third inductor L3.
[0074] The structure of the second tuning circuit 151 can be configured based on experience or application scenarios, and this disclosure does not limit it. Exemplarily, the structure of a second tuning circuit 151 provided in this disclosure embodiment can be as follows: Figure 2 As shown.
[0075] The second tuning circuit 151 further includes a third capacitor C3, a fourth capacitor C4, and a fourth inductor L4. The second feed source 130 is electrically connected to the first terminal of the third inductor L3, the second terminal of the third inductor L3 is electrically connected to the first terminal of the third capacitor C3, and the second terminal of the third capacitor C3 is electrically connected to the first switching circuit 142. Additionally, the first terminal of the third inductor L3 can also be electrically connected to the first terminal of the fourth inductor L4, and the second terminal of the fourth inductor L4 can be electrically connected to the first terminal of the fourth capacitor C4, with the second terminal of the fourth capacitor C4 grounded.
[0076] It should be noted that the third inductor L3 can be used to isolate the first frequency band, thereby further improving the isolation between the first and second frequency bands and enhancing the antenna performance of the antenna assembly 100 in the first and second frequency bands.
[0077] Figure 3 This is a structural diagram of an antenna assembly 100 according to an exemplary embodiment of the present disclosure. Figure 3 As shown, the antenna assembly 100 provided in this embodiment may further include: a second radiating stub 160, a third feed 180, and a third matching circuit 190.
[0078] In some exemplary embodiments, a coupling gap 170 may be provided between the first end of the second radiating stub 160 and the second end of the first radiating stub 110, so that the first radiating stub 110 constitutes a parasitic stub of the second radiating stub. The third feed source 180 may be electrically connected to the second radiating stub 160 through a third matching circuit 190.
[0079] The third matching circuit 190 can be used to make the second radiating stub 160 resonate in the third frequency band.
[0080] In an exemplary embodiment, the second radiating stub 160 can achieve electromagnetic coupling with the first radiating stub 110 through the coupling slot 170, thereby enhancing the radiation efficiency of the antenna assembly 110. Furthermore, embodiments of this disclosure can realize a full-band antenna assembly 100 covering a first, second, and third frequency band, since these embodiments integrate the three frequency bands into the first radiating stub 110 and the second radiating stub 160. Moreover, the various components in these embodiments can work synergistically, thereby achieving adaptation to different frequency bands within a limited space.
[0081] In some exemplary embodiments, the first switching circuit 142 and the second switching circuit 152 are also used to adjust the length of the parasitic branch.
[0082] In one possible implementation, the length of the parasitic stub can be adjusted based on different capacitance values for different bandwidths. For example, when the third feed 180 operates in the B3 band, the parasitic wave can be kept around 1.92 GHz by traversing different capacitance values in the first switching circuit 142 and the second switching circuit 152, thereby improving the efficiency of the B3 band antenna.
[0083] It should be noted that the embodiments of this disclosure achieve adjustment of the length of the parasitic stub through the first switching circuit 142 and the second switching circuit 152, thereby improving the debugging freedom of the third frequency band and improving the performance of the third frequency band antenna.
[0084] In addition, the capacitance values of the first switching circuit 142 and the second switching circuit 152 can be determined based on the operating frequency band of the third feed source 180, but the present disclosure does not limit the capacitance value.
[0085] Figure 4 This is a structural diagram of an antenna assembly 100 according to an exemplary embodiment of the present disclosure. Figure 4 As shown, the third matching circuit 190 includes at least a third switching circuit 192. The third switching circuit 192 includes a third switching switch SW3 and multiple switching branches. The switching terminal of the third switching switch SW3 is connected to the multiple switching branches. The common terminal of the third switching switch SW3 is electrically connected to the second radiating branch 160.
[0086] In Figure 4 In this circuit, the third matching circuit 190 may further include a third tuning circuit 191. The third tuning circuit 191 may include a fifth inductor L5, a fifth capacitor C5, a sixth inductor L6, and a sixth capacitor C6.
[0087] For example, the third feed source 180 can be electrically connected to the first terminal of the fifth inductor L5, the second terminal of the fifth inductor L5 is electrically connected to the first terminal of the fifth capacitor C5, and the second terminal of the fifth capacitor C5 is grounded through the sixth inductor L6. Furthermore, the first terminal of the fifth inductor L5 can also be grounded through the sixth capacitor C6.
[0088] In an exemplary embodiment, the third switching circuit 192 may include four switching branches, two of which are grounded via inductors, one via a capacitor, and the other electrically connected between the fifth inductor L5 and the fifth capacitor C5. The switching terminal of the third switching circuit 192 is switched between the four switching branches, and the common terminal of the third switching circuit 192 is electrically connected between the fifth capacitor C5 and the second radiating stub 160. This embodiment of the present disclosure achieves tuning of the third frequency band through the third switching circuit and the third tuning circuit, thereby improving the antenna performance of the third frequency band.
[0089] In some embodiments, the first frequency band is the UWB band, the second frequency band is the LB band and / or the Sub-6G band, and the third frequency band is the MHB band.
[0090] In an exemplary embodiment, the UWB band may include the 7.73 GHz to 8.23 GHz band. The LB band may include the B5 / 8 / 20 / 28 bands. The Sub-6 GHz band may include the N77 / 78 bands. The MHB band may include the B1 / 3 / 40 / 41 bands.
[0091] Figure 5 This is a structural diagram of an electronic device according to an exemplary embodiment of the present disclosure. Figure 5 As shown, the electronic device 200 may include the antenna assembly 100 described above. The antenna assembly 100 may be disposed on the side of the electronic device.
[0092] For example, electronic devices may 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.
[0093] An exemplary embodiment of this disclosure also provides an electronic device that may include the antenna assembly described above.
[0094] 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.
[0095] 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.
[0096] 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.
[0097] 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.
[0098] 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.
[0099] 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.
[0100] 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.
[0101] 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.
[0102] 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.
[0103] In some embodiments of this disclosure, the electronic device 600 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.
[0104] Although terms such as “first,” “second,” and “third” may be used in this document to describe various components, parts, or regions, these components, parts, or regions are not limited to these terms. Rather, these terms are used only to distinguish one component, part, or region from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, or region mentioned in the examples may also be referred to as the second component, part, or region.
[0105] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In this description, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0106] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions 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 following claims.
[0107] 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: First radiating branch; A first feed source, the first feed source being electrically connected to the first radiating branch via a first matching circuit, the first matching circuit including at least a first tuning circuit and a first switching circuit, the first feed source being electrically connected to the first switching circuit via the first tuning circuit; The second feed source is electrically connected to the first radiating branch through a second matching circuit. The second matching circuit includes at least a second tuning circuit and a second switching circuit. The second feed source is electrically connected to the second switching circuit through the second tuning circuit. The first matching circuit is used to make the first radiating stub resonate in the first frequency band, the second matching circuit is used to make the first radiating stub resonate in the second frequency band, and the first switching circuit is used to tune the second frequency band.
2. The antenna assembly according to claim 1, characterized in that, The first switching circuit includes a first switching switch and multiple switching branches. The switching terminal of the first switching switch is connected to the multiple switching branches, and the common terminal of the first switching switch is grounded.
3. The antenna assembly according to claim 2, characterized in that, The first switching circuit includes at least a first switching branch and a second switching branch among its multiple switching branches. The first switching branch includes a first capacitor, and the second switching branch includes a first inductor. The first capacitor and the first inductor are used to generate LC parallel resonance operating in the first frequency band.
4. The antenna assembly according to claim 1, characterized in that, The first tuning circuit includes at least a second inductor and a second capacitor; The first feed source is electrically connected to the first end of the second inductor, the second end of the second inductor is electrically connected to the first end of the second capacitor, and the second end of the second capacitor is electrically connected to the first switching circuit.
5. The antenna assembly according to claim 1, characterized in that, The second switching circuit includes a second switching switch and multiple switching branches. The switching terminal of the second switching switch is connected to the multiple switching branches, and the common terminal of the second switching switch is grounded.
6. The antenna assembly according to claim 1, characterized in that, The second tuning circuit includes at least a third inductor.
7. The antenna assembly according to any one of claims 1 to 6, characterized in that, The antenna assembly further includes: The second radiating branch has a coupling gap between its first end and the second end of the first radiating branch, so that the first radiating branch constitutes a parasitic branch of the second radiating branch. The third feed source is electrically connected to the second radiating branch through a third matching circuit; The third matching circuit is used to cause the second radiating stub to resonate in the third frequency band.
8. The antenna assembly according to claim 7, characterized in that, The first and second switching circuits are also used to adjust the length of the parasitic branch.
9. The antenna assembly according to claim 7, characterized in that, The third matching circuit includes at least a third switching circuit, which includes a third switching switch and multiple switching branches. The switching terminal of the third switching switch is connected to the multiple switching branches, and the common terminal of the third switching switch is electrically connected to the second radiating branch.
10. The antenna assembly according to claim 7, characterized in that, The first frequency band is the ultra-wideband (UWB) band, the second frequency band is the low-frequency (LB) band and / or the sub-6 GHz band, and the third frequency band is the mid-to-high frequency (MHB) band.
11. An electronic device, characterized in that, The electronic device includes the antenna assembly as described in any one of claims 1 to 10.
12. The electronic device according to claim 11, characterized in that, The antenna assembly is disposed on the side of the mid-frame of the electronic device.