Antenna structure and electronic equipment

Abstract

The utility model relates to an antenna structure and electronic equipment. The antenna structure comprises a first feed source. And the first radiator is electrically connected with the first feed source. The first tuning circuit is electrically connected with the first radiator, the first tuning circuit comprises a tuning switch and a matching element, and the matching element is switched to be connected or disconnected with the first radiator through the tuning switch. And the second radiator is electrically connected with the first feed source, and the current fed by the first feed source excites the second radiator to generate resonance covering the ultra-wideband frequency band. And the first feed source feeds the first radiator and the second radiator respectively, so that the structural complexity is effectively reduced. By arranging the first radiator and the second radiator, mutual coupling between the UWB frequency band and the mainstream frequency band is avoided.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of wireless communication, and in particular to an antenna structure and an electronic device. BACKGROUND

[0002] With the application of Ultra Wide Band (UWB) technology, electronic devices with UWB function can not only quickly control smart homes, but also have many uses in the fields of navigation and automobiles. However, the frequency band covered by UWB is relatively high, generally 7.73 GHz to 8.23 GHz, and the integration of UWB with traditional frequency bands is a difficult problem in current antenna architecture design. CONTENT OF THE UTILITY MODEL

[0003] To overcome the problems in the related art, the present disclosure provides an antenna structure and an electronic device.

[0004] According to a first aspect of an embodiment of the present disclosure, an antenna structure is provided, comprising:

[0005] a first feed source;

[0006] a first radiator, electrically connected with the first feed source;

[0007] a first tuning circuit, electrically connected with the first radiator, the first tuning circuit comprising a tuning switch and a matching element, the matching element being switched on and off with the first radiator through the tuning switch;

[0008] a second radiator, electrically connected with the first feed source, the current fed by the first feed source exciting the second radiator to generate resonance covering an ultra-wideband frequency band.

[0009] In some embodiments, the antenna structure further comprises a first resonance circuit;

[0010] a first end of the first resonance circuit is electrically connected with the first feed source, and a second end of the first resonance circuit is electrically connected with the first radiator;

[0011] the second radiator is electrically connected with the first end of the first resonance circuit.

[0012] In some embodiments, the first resonance circuit comprises a first inductor and a first capacitor;

[0013] a first end of the first inductor is electrically connected with the first feed source, and a second end of the first inductor is electrically connected with the first radiator;

[0014] a first end of the first capacitor is electrically connected with the first end of the first inductor, and a second end of the first capacitor is grounded;

[0015] The second radiator is electrically connected with the first end of the first inductor.

[0016] In some embodiments, the antenna structure further comprises a second capacitor;

[0017] The first radiator, the second capacitor, the first inductor and the first feed source are connected in series.

[0018] In some embodiments, the first tuning circuit further comprises a second resonant circuit;

[0019] The second resonant circuit is switched on and off with the first radiator by the tuning switch, when the second radiator is in working state, the second resonant circuit is connected with the first radiator by the tuning switch;

[0020] The resonant frequency of the second resonant circuit is within the ultra-wideband frequency band.

[0021] In some embodiments, the second resonant circuit comprises a second inductor and a third capacitor;

[0022] The second inductor and the third capacitor are connected in series.

[0023] In some embodiments, the tuning switch comprises a first switch, a second switch, a third switch, a fourth switch and a fifth switch;

[0024] The matching element comprises a first matching element, a second matching element, a third matching element and a fourth matching element;

[0025] The first end of the first switch is electrically connected with the first radiator through the first matching element, and the second end of the first switch is grounded;

[0026] The first end of the second switch is electrically connected with the first radiator through the second matching element, and the second end of the second switch is grounded;

[0027] The first end of the third switch is electrically connected with the first radiator through the third matching element, and the second end of the third switch is grounded;

[0028] The first end of the fourth switch is electrically connected with the first radiator through the fourth matching element, and the second end of the fourth switch is grounded;

[0029] The first end of the fifth switch is electrically connected with the first radiator through the second resonant circuit, and the second end of the fifth switch is grounded.

[0030] In some embodiments, the second radiator is a laser direct structuring antenna.

[0031] In some embodiments, the antenna structure further comprises:

[0032] Second feed;

[0033] a third radiator, electrically connected to the second feed source, wherein the operating frequency band of the third radiator covers the middle and high frequency bands;

[0034] a second tuning circuit electrically connected to the third radiator, the second tuning circuit being configured to switch an operating frequency band of the third radiator within a medium or high frequency band;

[0035] The operating frequency band of the first radiator covers the low frequency band and the Sub-6GHz band.

[0036] According to a second aspect of an embodiment of the present disclosure, an electronic device is provided, comprising the antenna structure described in any one of the first aspects above.

[0037] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the first feed source feeds the first radiator and the second radiator respectively, effectively reducing the complexity of the structure. The first radiator covers the mainstream frequency band, and the tuning switch in the first tuning circuit controls the tuning element to be connected to the first radiator, so that the first radiator matches different impedances for frequency band switching. The current fed by the first feed source excites the second radiator to generate resonance covering the ultra-wideband frequency band, that is, the second radiator covers the UWB frequency band. By setting the first radiator and the second radiator, mutual coupling between the UWB frequency band and the mainstream frequency band is avoided.

[0038] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0040] Figure 1 The figure is a schematic structural diagram of an antenna structure according to an exemplary embodiment.

[0041] Figure 2 is a structural diagram of an antenna structure according to another exemplary embodiment.

[0042] Figure 3 It is a block diagram of an electronic device according to an exemplary embodiment.

[0043] Reference numerals:

[0044] 1. First feed source; 2. First radiator; 3. Second radiator; 4. First tuning circuit; 5. First resonant circuit; 6. Second capacitor; 7. Second feed source; 8. Second tuning circuit; 9. Third radiator; 41. Tuning switch; 42. Matching element; 43. Second resonant circuit; 51. First inductor; 52. First capacitor; 411. First switch; 412. Second switch; 413. Third switch; 414. Fourth switch; 415. Fifth switch; 421. First matching element; 422. Second matching element; 423. Third matching element; 424. Fourth matching element; 431. Second inductor; 432. Third capacitor. DETAILED DESCRIPTION

[0045] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0046] With the application of ultra-wideband (UWB) technology, electronic devices equipped with UWB capabilities not only enable fast control of smart homes but also have numerous applications in areas such as navigation and automotive. However, UWB covers a relatively high frequency band, generally ranging from 7.73 GHz to 8.23 ​​GHz, and its integration with traditional standard frequency bands is currently a challenge in antenna architecture design. Currently, electronic devices must support frequency bands such as 2 / 3 / 4 / 5G, GPS L1 / L5, and WiFi 2.4 / 5G. Adding UWB to these bands significantly expands the frequency band combination of electronic devices. Traditional solutions often use a multi-feed approach, requiring additional antenna components and RF devices to support the communication paths. This also increases structural complexity, resulting in a very congested antenna architecture. How to incorporate UWB antenna designs into the internal space of existing electronic devices without increasing structural complexity has become a pressing issue for those skilled in the art.

[0047] To address the above technical issues, an antenna structure and electronic device are disclosed. Two radiators are fed separately via a single feed source. One radiator switches its frequency band via a first tuning circuit, enabling it to meet the needs of the mainstream frequency band, while the other radiator's frequency band covers the ultra-wideband band. The single feed source effectively reduces structural complexity, and the separate configuration of the two radiators avoids the mutual coupling problem that can easily occur between frequency bands when a single feed source is used.

[0048] Figure 1The figure is a schematic structural diagram of an antenna structure according to an exemplary embodiment. Figure 2 FIG. 1 is a schematic diagram showing an antenna structure according to another exemplary embodiment. Figure 1 and Figure 2 As shown, the antenna structure includes: a first feed source 1; a first radiator 2, electrically connected to the first feed source 1; a first tuning circuit 4, electrically connected to the first radiator 2, and including a tuning switch 41 and a matching element 42. The matching element 42 switches on and off with the first radiator 2 via the tuning switch 41; and a second radiator 3, electrically connected to the first feed source 1. The current fed into the first feed source 1 excites the second radiator 3 to generate resonance within the ultra-wideband frequency band.

[0049] The first feed source 1 feeds power to the first radiator 2 and the second radiator 3, respectively, effectively reducing the complexity of the structure. The first radiator 2 covers the mainstream frequency band, and the tuning switch 41 in the first tuning circuit 4 controls the connection between the tuning element and the first radiator 2, so that the first radiator 2 matches different impedances for frequency band switching. The current fed by the first feed source 1 excites the second radiator 3 to produce resonance covering the ultra-wideband frequency band, that is, the second radiator 3 covers the UWB frequency band. By setting the first radiator 2 and the second radiator 3, mutual coupling between the UWB frequency band and the mainstream frequency band is avoided.

[0050] In order to further avoid the performance degradation caused by strong mutual coupling between frequency bands due to single feed, it is necessary to add isolation measures between the first radiator 2 and the second radiator 3 to ensure that the first radiator 2 and the second radiator 3 do not interfere with each other and achieve coexistence.

[0051] In some embodiments, the antenna structure further includes a first resonant circuit 5. A first end of the first resonant circuit 5 is electrically connected to the first feed source 1, and a second end of the first resonant circuit 5 is electrically connected to the first radiator 2. The second radiator 3 is electrically connected to the first end of the first resonant circuit 5. The provision of the first resonant circuit 5 can isolate the first radiator 2 from the second radiator 3, thereby reducing interference between the first radiator 2 and the second radiator 3.

[0052] In some embodiments, the first resonant circuit 5 includes a first inductor 51 and a first capacitor 52. The first end of the first inductor 51 is electrically connected to the first feed source 1, and the second end of the first inductor 51 is electrically connected to the first radiator 2. The first end of the first capacitor 52 is electrically connected to the first end of the first inductor 51, and the second end of the first capacitor 52 is grounded. The second radiator 3 is electrically connected to the first end of the first inductor 51. Figure 1As shown, the first inductor 51 is connected in series between the first feed source 1 and the first radiator 2, and the two ends of the first capacitor 52 are respectively electrically connected to the first feed source 1 and grounded. The equivalent first inductor 51 and the first capacitor 52 are arranged in parallel to form an LC parallel oscillation circuit, thereby isolating the first radiator 2 and the second radiator 3 when they work at the same time, thereby reducing interference between the first radiator 2 and the second radiator 3.

[0053] In some embodiments, the first tuning circuit 4 further includes a second resonant circuit 43. The second resonant circuit 43 is switched between connection and disconnection with the first radiator 2 via a tuning switch 41. When the second radiator 3 is in operation, the second resonant circuit 43 is connected to the first radiator 2 via the tuning switch 41. The resonant frequency of the second resonant circuit 43 is within the ultra-wideband band. That is, the resonant frequency of the second resonant circuit 43 is within the UWB band, thereby further improving the isolation between the first radiator 2 and the second radiator 3. Furthermore, the second resonant circuit 43 is controlled to connect to the first radiator 2 via the tuning switch 41. When the second radiator 3 is in operation, the tuning switch 41 controls the connection of the second resonant circuit 43, isolating the first radiator 2 from the second radiator 3. When the second radiator 3 is not in operation, the tuning switch 41 controls the disconnection of the second resonant circuit 43, reducing the impact of the second resonant circuit 43 on the first radiator 2.

[0054] In some embodiments, the second resonant circuit 43 includes a second inductor 431 and a third capacitor 432. The second inductor 431 and the third capacitor 432 are connected in series to form an LC series oscillating circuit, thereby isolating the first radiator 2 and the second radiator 3 when they operate simultaneously, further reducing interference between the first radiator 2 and the second radiator 3.

[0055] In some embodiments, as Figure 1 As shown, the tuning switch 41 includes a first switch 411 , a second switch 412 , a third switch 413 , a fourth switch 414 and a fifth switch 415 . The matching element 42 includes a first matching element 421 , a second matching element 422 , a third matching element 423 and a fourth matching element 424 .

[0056] The first end of the first switch 411 is electrically connected to the first radiator 2 via the first matching element 421, and the second end of the first switch 411 is grounded. When the first switch 411 controls the first matching element 421 to connect to the first radiator 2, the first matching element 421 can tune the first radiator 2 so that its frequency falls within the corresponding frequency band. The first end of the second switch 412 is electrically connected to the first radiator 2 via the second matching element 422, and the second end of the second switch 412 is grounded. When the second switch 412 controls the second matching element 422 to connect to the first radiator 2, the second matching element 422 can tune the first radiator 2 so that its frequency falls within the corresponding frequency band. The first end of the third switch 413 is electrically connected to the first radiator 2 via the third matching element 423, and the second end of the third switch 413 is grounded. When the third switch 413 controls the third matching element 423 to connect to the first radiator 2, the third matching element 423 can tune the first radiator 2 so that its frequency falls within the corresponding frequency band. A first end of the fourth switch 414 is electrically connected to the first radiator 2 via a fourth matching element 424, and a second end of the fourth switch 414 is grounded. When the fourth switch 414 controls the fourth matching element 424 to connect to the first radiator 2, the fourth matching element 424 can tune the first radiator 2 so that its frequency meets the corresponding frequency band.

[0057] For example, when the first matching element 421, the second matching element 422, the third matching element 423 and the fourth matching element 424 are connected separately, they respectively support B5 / 8 / 20 / 28 in the low frequency band (LB). In these states, the radiation branch used is a quarter-wavelength mode from the right rib of the first radiator 2 to the end of the partition bar, that is, the right end of the first radiator 2.

[0058] In some embodiments, the first matching element 421 is a capacitor, the second matching element 422 is a capacitor, the third matching element 423 is an inductor, and the fourth matching element 424 is an inductor.

[0059] It should be noted here that although the present disclosure is introduced with the above-mentioned embodiments, those skilled in the art may set the first matching element 421, the second matching element 422, the third matching element 423 and the fourth matching element 424 according to actual conditions so that they can meet the frequency band switching of the first radiator 2.

[0060] In some embodiments, the first end of the fifth switch 415 is electrically connected to the first radiator 2 through the second resonant circuit 43, and the second end of the fifth switch 415 is grounded. When the second radiator 3 is in a working state, the fifth switch 415 controls the second resonant circuit 43 to be connected, thereby isolating the first radiator 2 from the second radiator 3.

[0061] The second resonant circuit 43, the first matching element 421, the second matching element 422, the third matching element 423 and the fourth matching element 424 are arranged in parallel, so that the first matching element 421, the second matching element 422, the third matching element 423 and the fourth matching element 424 can be connected to the first radiator 2 for tuning individually, or multiple ones can be connected simultaneously for tuning, thereby increasing the number of switchable frequency bands of the first radiator 2.

[0062] In some embodiments, the tuning switch 41 is a single-pole, five-throw switch (SP5T). That is, the first matching element 421, the second matching element 422, the third matching element 423, the fourth matching element 424, and the second resonant circuit 43 are connected in parallel to a first terminal of the SP5T switch, and the second terminal of the SP5T switch is grounded. By configuring the SP5T switch, the first matching element 421, the second matching element 422, the third matching element 423, the fourth matching element 424, and the second resonant circuit 43 are controlled to selectively connect to the first radiator 2.

[0063] In some embodiments, the antenna structure further includes a second capacitor 6. The first radiator 2, the second capacitor 6, the first inductor 51, and the first feed source 1 are connected in series. The first feed source 1 is fed by the first inductor 51 and the second capacitor 6 connected in series, thereby increasing the frequency range covered by the first radiator 2.

[0064] For example, the present disclosure supports B5 / 8 / 20 / 28 in the low frequency band (LB) respectively through the first tuning circuit 4. In these states, the radiation branch used is the quarter-wavelength mode from the right rib of the first radiator 2 to the end of the partition bar, that is, the right end of the first radiator 2. By setting the first inductor 51 and the second capacitor 6 on the feed path of the first feed source 1, it can generate resonance covering the N78 frequency band. In this way, the present disclosure can achieve partial support for LB and the frequency band below 6 GHz (Sub-6 GHz).

[0065] In some embodiments, the second radiator 3 is a laser direct structuring antenna. That is, the second radiator 3 is manufactured using laser direct structuring (LDS) technology, which not only increases the space utilization of the electronic device but also avoids interference from internal components of the electronic device, thereby ensuring the signal quality of the second radiator 3.

[0066] In some embodiments, as Figure 2As shown, the antenna structure also includes: a second feed source 7. A third radiator 9 is electrically connected to the second feed source 7, and the operating frequency band of the third radiator 9 covers the middle and high frequency band (Middle High Band, MHB). A second tuning circuit 8 is electrically connected to the third radiator 9, and the second tuning circuit 8 is used to switch the operating frequency band of the third radiator 9 within the middle and high frequency band. The operating frequency band of the first radiator 2 covers the low frequency band and the Sub-6GHz band. A partition bar is provided between the first radiator 2 and the third radiator 9 to isolate the first radiator 2 from the third radiator 9.

[0067] It should be noted here that the present disclosure does not specifically limit how the third radiator 9 switches the frequency band. It is only necessary to ensure that the working frequency band of the third radiator 9 covers the medium and high frequency bands.

[0068] The first feed source 1 covers the LB (700MHz-900MHz) + sub6G (3.3-4.2GHz) + UWB (7.73-8.23GHz) frequency bands, and the second feed source 7 covers the MHB (3GHz-6GHz). The present disclosure solves the problem of increased cost and design complexity caused by the need for multiple feeds in traditional cross-band antennas, and breaks through the bottleneck of mutual coupling between frequency bands when using single feed. It enables UWB to coexist with all states without the need to configure a state for UWB separately, providing users with a high-quality communication experience.

[0069] In addition, UWB works through the antenna form of LDS. In this disclosure, UWB can coexist with all communication standards, including LB+sub6G, and MHB. This means that no matter what usage scenario the user is in, the UWB function can be called in time, thereby ensuring the user's high-quality usage experience.

[0070] Based on the same concept, an embodiment of the present disclosure further provides an electronic device, comprising the antenna structure described in any one of the above embodiments.

[0071] The electronic device involved in the present disclosure may also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., which is a device that provides voice and / or data connectivity to users. For example, the electronic device may be a handheld device with wireless connection function, a vehicle-mounted device, etc. At present, some examples of electronic devices are: smart phones (Mobile Phones), pocket personal computers (PPCs), handheld computers, personal digital assistants (PDAs), laptop computers, tablet computers, wearable devices, or vehicle-mounted devices, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the electronic device may also be a vehicle-mounted device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the electronic device.

[0072] Figure 3 8 is a block diagram of an electronic device 800 according to an exemplary embodiment. For example, the electronic device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0073] Reference Figure 3 , the electronic device 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0074] The processing component 802 generally controls the overall operation of the electronic device 800, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 802 may include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

[0075] The memory 804 is configured to store various types of data to support operations on the electronic device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0076] The power component 806 provides power to the various components of the electronic device 800. The power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device 800.

[0077] The multimedia component 808 includes a screen that provides an output interface between the electronic device 800 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 can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the electronic device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0078] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), which is configured to receive external audio signals when the electronic device 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0079] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0080] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the electronic device 800. For example, the sensor assembly 814 can detect the open / closed state of the electronic device 800, the relative positioning of components, such as the display and keypad of the electronic device 800. The sensor assembly 814 can also detect changes in the position of the electronic device 800 or a component of the electronic device 800, the presence or absence of user contact with the electronic device 800, the orientation or acceleration / deceleration of the electronic device 800, and temperature changes of the electronic device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0081] The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0082] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0083] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by the processor 820 of the electronic device 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0084] It is understood that in this disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of related objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0085] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not indicate a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of this disclosure.

[0086] It can be further understood that the terms "center", "longitudinal", "lateral", "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation.

[0087] It is further understood that, unless otherwise specified, “connection” includes a direct connection where there are no other components between the two elements, and also includes an indirect connection where there are other elements between the two elements.

[0088] It is further understood that although operations are described in a particular order in the drawings in the embodiments of the present disclosure, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the operations shown be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0089] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0090] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. An antenna structure, characterized in that: include: First feed; a first radiator, electrically connected to the first feed source; a first tuning circuit electrically connected to the first radiator, the first tuning circuit comprising a tuning switch and a matching element, the matching element being switched on and off with the first radiator by the tuning switch; The second radiator is electrically connected to the first feed source, and the current fed into the first feed source excites the second radiator to generate resonance covering an ultra-wideband frequency band.

2. The antenna structure according to claim 1, wherein: The antenna structure further includes a first resonant circuit; A first end of the first resonant circuit is electrically connected to the first feed source, and a second end of the first resonant circuit is electrically connected to the first radiator; The second radiator is electrically connected to the first end of the first resonant circuit.

3. The antenna structure according to claim 2, characterized in that: The first resonant circuit includes a first inductor and a first capacitor; A first end of the first inductor is electrically connected to the first feed source, and a second end of the first inductor is electrically connected to the first radiator; A first end of the first capacitor is electrically connected to a first end of the first inductor, and a second end of the first capacitor is grounded; The second radiator is electrically connected to the first end of the first inductor.

4. The antenna structure according to claim 3, characterized in that: The antenna structure further includes a second capacitor; The first radiator, the second capacitor, the first inductor and the first feed source are sequentially connected in series.

5. The antenna structure according to claim 1, wherein: The first tuning circuit further includes a second resonant circuit; The second resonant circuit is switched on and off with the first radiator through the tuning switch. When the second radiator is in an operating state, the second resonant circuit is connected to the first radiator through the tuning switch. The resonant frequency of the second resonant circuit is within the ultra-wideband frequency band.

6. The antenna structure according to claim 5, characterized in that: The second resonant circuit includes a second inductor and a third capacitor; The second inductor and the third capacitor are connected in series.

7. The antenna structure according to claim 5, characterized in that: The tuning switch includes a first switch, a second switch, a third switch, a fourth switch and a fifth switch; The matching elements include a first matching element, a second matching element, a third matching element and a fourth matching element; A first end of the first switch is electrically connected to the first radiator through the first matching element, and a second end of the first switch is grounded; A first end of the second switch is electrically connected to the first radiator through the second matching element, and a second end of the second switch is grounded; A first end of the third switch is electrically connected to the first radiator through the third matching element, and a second end of the third switch is grounded; A first end of the fourth switch is electrically connected to the first radiator through the fourth matching element, and a second end of the fourth switch is grounded; A first end of the fifth switch is electrically connected to the first radiator through the second resonant circuit, and a second end of the fifth switch is grounded.

8. The antenna structure according to claim 1, wherein: The second radiator is a laser direct structuring antenna.

9. The antenna structure according to claim 1, wherein: The antenna structure further includes: Second feed; a third radiator, electrically connected to the second feed source, wherein the operating frequency band of the third radiator covers the middle and high frequency bands; a second tuning circuit electrically connected to the third radiator, the second tuning circuit being configured to switch an operating frequency band of the third radiator within a medium or high frequency band; The operating frequency band of the first radiator covers the low frequency band and the Sub-6GHz band.

10. An electronic device, characterized in that: include: The antenna structure according to any one of claims 1 to 9.

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