WO2024103936A1 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2024103936A1
WO2024103936A1 PCT/CN2023/118262 CN2023118262W WO2024103936A1 WO 2024103936 A1 WO2024103936 A1 WO 2024103936A1 CN 2023118262 W CN2023118262 W CN 2023118262W WO 2024103936 A1 WO2024103936 A1 WO 2024103936A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductor
radiator
electronic device
frequency band
button
Prior art date
Application number
PCT/CN2023/118262
Other languages
English (en)
French (fr)
Inventor
任锐
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2024103936A1 publication Critical patent/WO2024103936A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10—Resonant antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground

Definitions

  • the present application relates to the field of communication technology, and in particular to an electronic device.
  • shortcut keys such as volume keys, power keys and mute keys.
  • buttons and antennas are set close to each other.
  • FPC Flexible Printed Circuit
  • an electronic device is provided.
  • An electronic device comprising:
  • a first radiator wherein the first radiator is provided with a first feeding point and a first grounding point, the first feeding point is used to feed a first excitation signal, and the first grounding point is connected to a reference ground; the first radiator is used to support a signal of a first frequency band under the excitation of the first excitation signal;
  • a first conductor the first conductor having a grounding point connected to a reference ground, the first conductor being arranged corresponding to the first button, the first conductor being arranged at least partially opposite to the first radiator, and the first conductor being coupled to the first radiator to radiate and support a signal of a second frequency band;
  • a tuning switch circuit one end of the tuning switch circuit is connected to the first conductor, the other end of the tuning switch circuit is grounded, and the tuning switch circuit is used to adjust the resonant frequency of the signal in the second frequency band so that the second frequency band is different from the first frequency band.
  • the first radiator and the first conductor corresponding to the first button have a relatively set part, the first radiator radiates a signal of a first frequency band, the first conductor is coupled to the first radiator to support the radiation of a signal of a second frequency band, and the tuning switch circuit adjusts the resonant frequency of the first conductor to make the first frequency band different from the second frequency band, thereby avoiding the first conductor coupling the energy of the first radiator to cause co-frequency interference to the first radiator, which is conducive to realizing a miniaturized design while ensuring communication stability.
  • the first conductor can radiate the signal of the second frequency band based on the tuning switch circuit during the process of coupling the energy of the first radiator, that is, the first conductor is multiplexed to transmit the first electrical signal representing the first key action and radiate the signal of the second frequency band, it is further conducive to miniaturization design.
  • FIG1 is one of the structural schematic diagrams of an electronic device according to one or more embodiments.
  • FIG2 is a second schematic diagram of the structure of an electronic device according to one or more embodiments.
  • FIG3 is a third structural schematic diagram of an electronic device according to one or more embodiments.
  • FIG. 4 is a schematic diagram of a tuning switch circuit according to one or more embodiments.
  • connection in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if there is transmission of electrical signals or data between the connected objects.
  • the number of antenna radiators is increasing, while the space under the full screen is getting smaller and smaller, resulting in the FPC of the button being only about 1mm away from the side metal frame antenna.
  • the passive standing waves of various frequency bands of various antennas will produce clutter of different sizes, such as the 700M-6GHz frequency band, which may include GPSL1, L5/wifi2.4G, 5G/sub6G/4G, etc., which often cause 3-10db impact on the active of various frequency bands.
  • the present application provides an electronic device.
  • the electronic device may be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, IoT devices and portable wearable devices.
  • the IoT devices may be smart speakers, smart TVs, smart air conditioners, smart car devices, etc.
  • the portable wearable devices may be smart watches, smart bracelets, head-mounted devices, etc.
  • an electronic device including: a first button 201 , a first conductor 202 , a first radiator 204 , and a tuning switch circuit 206 .
  • the first radiator 204 is provided with a first feeding point K1 and a first grounding point.
  • the first feeding point K1 is used to feed the first excitation signal, and the first grounding point is connected to the reference ground.
  • the first excitation signal is fed into the first radiator 204 from the first feeding point K1, and is fed into the reference ground through the first grounding point after being transmitted on the first radiator 204.
  • the first radiator 204 radiates a signal of the first frequency band when transmitting the first excitation signal.
  • the excitation signal may be an excitation current signal.
  • the excitation signal connected to the feeding point in the embodiment of the present application may be connected to a communication chip in an electronic device to realize the feeding in and out of the excitation signal.
  • the first feeding point K1 is connected to a feed source to realize the access of the first excitation signal.
  • the first conductor 202 has a grounding point electrically connected to the reference ground, and the ground signal is accessed through the grounding point.
  • the first conductor 202 is used to be set corresponding to the first button 201 on the electronic device.
  • a first electrical signal is transmitted on the first conductor 202.
  • the first electrical signal is used to characterize the key action on the first button 201, so that other devices such as the control unit can obtain the first electrical signal to know the key action and respond to the key action.
  • the first electrical signal on the first conductor 202 is also different.
  • the first conductor 202 and the first radiator 204 are at least partially disposed opposite to each other.
  • the portion where the first conductor 202 and the first radiator 204 are disposed opposite to each other refers to a portion of the first conductor 202 that can couple the radiation energy of the first radiator 204 when radiating an electromagnetic wave signal.
  • the first conductor 202 is coupled to the first radiator 204 to radiate the signal of the second frequency band.
  • the tuning switch circuit 206 is connected to the first conductor 202, and the tuning switch circuit 206 can adjust the resonant frequency of the signal of the second frequency band radiated by the first conductor 202, so that the second frequency band is different from the first frequency band, and avoid the induced current on the first conductor 202 from interfering with the communication performance of the first radiator 204.
  • the tuning switch circuit 206 can be connected from any position on the first conductor 202.
  • the tuning switch circuit 206 can be connected from an end point close to the first conductor 202, in which case the layout space of the extended position of the first conductor 202 can be further saved. For example, as shown in FIG1, one end of the tuning switch circuit 206 is connected to one end of the first conductor 202, and the other end is grounded.
  • the number of grounding points can be proportional to the length of the first conductor 202 coupled with the first radiator 204.
  • the longer the length the easier it is to generate interference, and the easier it is to generate interference to multiple frequency bands. Therefore, for the first conductor 202 with a longer length, the number of grounding points is greater, so as to change the electrical length of the first conductor 202 and suppress the co-frequency interference when the first conductor 202 couples the energy of the first radiator 204. For example, as shown in FIG.
  • the first radiator 204 on the first conductor 202 there can be a portion coupled with the first radiator 204 on the first conductor 202, and grounding points are respectively provided at both ends of the portion of the conductor to achieve anti-interference protection of the first radiator 204 when radiating in the full frequency band.
  • grounding points are respectively provided at both ends of the portion of the conductor to achieve anti-interference protection of the first radiator 204 when radiating in the full frequency band.
  • a key conductor including the first conductor 202 in the above embodiment, and also including the second conductor 208 in the following embodiment
  • interference will begin to be generated in the sub-6G frequency band (the sub-6G frequency band of 450 MHz to 6000 MHz), and a grounding point needs to be provided on the key conductor.
  • a tuning switch circuit 206 may be further connected to suppress interference.
  • the first conductor 202 and the first radiator 204 are arranged close to each other, and the first conductor 202 couples the energy of the first radiator 204 when radiating the signal of the first frequency band to generate an induced current.
  • the tuning switch circuit 206 connected to the first conductor 202 adjusts the frequency of the induced current so that the resonant frequency of the signal of the second frequency band radiated by the first conductor 202 is different from the resonant frequency of the signal of the first frequency band, so as to avoid co-frequency interference and avoid the interference of the conductor of the button on the communication performance of the antenna in a small design space, thereby improving the communication stability and facilitating the realization of miniaturized design.
  • the first conductor 202 is not only used to transmit the first electrical signal for representing the action of the first button 201, but can also be reused as an antenna for radiating signals in the second frequency band, which is further conducive to miniaturization design and to achieving multi-band communication.
  • the spacing distance between the first radiator 204 and the first conductor 202 that are relatively arranged is greater than or equal to 1 mm, and/or, less than or equal to 1.5 mm. Between 1 mm and 1.5 mm, the communication performance of the key conductor and the radiator that is relatively arranged therewith can be ensured, and the miniaturization design can be further realized to improve the space utilization.
  • the accommodation space of the side is smaller than that of the non-full-screen.
  • the spacing distance between the first radiator 204 and the first conductor 202 that are relatively arranged is greater than or equal to 1 mm, and/or, less than or equal to 1.5 mm, which is conducive to realizing the full-screen design while ensuring the communication stability.
  • the distance between the key conductor and the corresponding radiator can be adjusted by adjusting the size of the reinforcement plate corresponding to the key.
  • the distance between the key conductor and the corresponding radiator can be adjusted by adjusting the length of the glass fiber.
  • the electronic device further includes: a second button 207 and a second conductor 208.
  • the second conductor 208 has a grounding point electrically connected to the reference ground.
  • grounding point For understanding of the grounding point, reference can be made to the explanation of the grounding point of the first conductor 202.
  • the second conductor 208 is provided corresponding to the second button 207 on the electronic device, and the second conductor 208 can transmit a second electrical signal for representing a key action on the second button 207.
  • the second electrical signal can be transmitted to other devices such as a control unit through the second conductor 208, so that the control unit and other devices respond to the key action on the second button 207 based on the second electrical signal. It should be understood that for the second button 207, different key actions on the second button 207 trigger different second electrical signals on the corresponding second conductor 208.
  • the second conductor 208 is at least partially disposed opposite to the first radiator 204.
  • the oppositely disposed portions can be energy coupled.
  • the second conductor 208 couples with the first radiator 204 and supports the radiation of signals in the third frequency band. Based on the setting of the grounding point on the second conductor 208, the electrical length of the second conductor 208 is changed so that the signals in the third frequency band are connected to the signals in the first frequency band.
  • the resonant frequency of the signal is different, and while suppressing the same-frequency interference with the first radiator 204, the second conductor 208 can also be reused in the feedback of the second key action and the signal radiation of the third frequency band, which is further conducive to miniaturization design and improvement of communication performance.
  • the length of the second conductor 208 may be shorter than the length of the first conductor 202.
  • a grounding point may be provided on the second conductor 208 to change the electrical length of the second conductor 208 and suppress the interference of the second conductor 208 with respect to the radiator close thereto.
  • the length of the second conductor 208 is greater than or equal to 5 mm and less than or equal to 15 mm, only a grounding point may be provided on the second conductor 208.
  • a tuning switch circuit 206 may also be connected to the second conductor 208.
  • a second conductor 208 with a relatively long length such as a second conductor 208 with a length greater than or equal to 15 mm
  • the anti-interference effect is limited only by grounding.
  • the tuning switch circuit 206 By connecting a tuning switch circuit 206 to the second conductor 208, the resonant frequency of the signal radiated by the second conductor 208 in the third frequency band is adjusted by the tuning switch circuit 206 to avoid interference between the second conductor 208 and the radiator disposed opposite thereto, thereby improving communication reliability.
  • the tuning switch circuits 206 connected to the first conductor 202 and the second conductor 208 may be the same or different.
  • the electronic device further includes: a second radiator 210.
  • the second radiator 210 is disposed at least partially opposite to the first conductor 202.
  • the second radiator 210 is provided with a second feeding point K2 and a second grounding point.
  • the second feeding point K2 is used to feed the second excitation signal, and the second grounding point is connected to the reference ground. As shown in FIG3 , the second feeding point K2 is connected to the feed source to achieve access to the second excitation signal.
  • the second excitation signal flows from the second feeding point K2 into the second radiator 210, and after being transmitted by the second radiator 210, the feeding current is returned to the ground from the second grounding point.
  • the second radiator 210 is used to radiate a signal of a fourth frequency band under the excitation of a second excitation signal.
  • the lengths of the first radiator 204 and the second radiator 210 may be different.
  • the frequency bands of the electromagnetic wave signals radiated by the first radiator 204 and the second radiator 210 may be different to achieve multi-band communication of electronic devices.
  • the communication frequency band of the first radiator 204 may be 600M-960MHz
  • the communication frequency band of the second radiator 210 may include 1.7-4.9Ghz.
  • this is only an example, and does not limit the communication frequency bands of the first radiator 204 and the second radiator 210 in the embodiment of the present application.
  • the first conductor 202 couples the electromagnetic energy radiated by the second radiator 210 and generates an induced current, and the first conductor 202 radiates a signal in the fifth frequency band.
  • the tuning switch circuit 206 also adjusts the resonant frequency of the signal in the fifth frequency band radiated by the first conductor 202, so that the fifth frequency band is different from the fourth frequency band, so as to suppress the co-frequency interference between the second radiator 210 and the first conductor 202, and improve the communication reliability.
  • the first radiator 204 and the second radiator 210 are spaced apart to form a gap; one end of the first radiator 204 away from the gap is grounded; and one end of the second radiator 210 away from the gap is grounded.
  • the first radiator 204 and the second radiator 210 can both be metal branch antenna radiators designed using a metal middle frame.
  • the first radiator 204 and the second radiator 210 are both radiators formed by the border routing of the middle frame.
  • the gap formed between the first radiator 204 and the second radiator 210 can be understood as a gap opened on the border.
  • the first radiator 204 and the second radiator 210 may both be inverted-F antennas.
  • the tuning switch circuit 206 includes: at least one tuning unit 2064 and a switching module 2062 .
  • the input end of the switching module 2062 is connected to the first conductor 202 , and the output end of the switching module 2062 is respectively connected to each tuning unit 2064 .
  • the switching module 2062 is used to select and connect a target tuning unit 2064 to the first conductor 202 ; wherein the target tuning unit 2064 is at least one of the tuning units 2064 .
  • the tuning unit 2064 may include any one of a capacitor, an inductor, and a combination thereof.
  • the switching module 2062 refers to a module with a selective conduction function, which may include a single-pole double-throw, double-pole double-throw, and multi-pole multi-throw switch, and may also include a controller that obtains an excitation signal connected to the radiator and controls the switching state of the switch according to the excitation signal.
  • the controller may be a separate controller or a control chip in an electronic device for providing an excitation signal.
  • the controller may determine the electric current radiated by the excitation signal fed into the radiator according to the excitation signal.
  • the resonant frequency of the magnetic wave signal based on this, the controller can control the switching switch to select at least one tuning unit 2064, and the tuning unit 2064 adjusts the resonant frequency of the electromagnetic wave signal radiated by the key conductor under the excitation of the induced current generated by the energy of the coupled radiator, so that the resonant frequency is different from the resonant frequency of the electromagnetic wave signal radiated by the radiator to avoid co-frequency interference.
  • anti-interference protection of the electromagnetic wave signal of the radiator in the full frequency band can be achieved.
  • the key conductor can also be reused to realize the radiation of electromagnetic wave signals with multiple resonant frequencies, thereby improving the diversity of communication frequency bands.
  • the switching module 2062 may also be a chip with a gating function, which is used to detect the communication network and control the tuning unit 2064 to achieve tuning of each frequency band.
  • the tuning unit L1 inductor L1 shown in FIG4 is controlled to be connected to the first conductor 202.
  • the tuning unit C1 capacitor C1
  • the tuning unit C1 and the tuning unit L1 are controlled to be connected to the first conductor 202 at the same time.
  • the setting mode of at least two tuning units 2064 provides a variety of tuning combinations.
  • Each combination state of the tuning unit 2064 connected to the first conductor 202 can correspond to a frequency band, so that tuning of any frequency point can be achieved, and anti-interference protection for the full-band communication of the radiator can be achieved.
  • different tuning units 2064 can be used to block signals at different resonant frequencies. By connecting different tuning units 2064, the radiation of electromagnetic wave signals at different resonant frequencies can be achieved.
  • the grounding of the grounding point on the key conductor and the grounding of the tuning switch circuit 206 can be achieved by springs. Compared with conductive cloth or conductive foam, key failure caused by moisture can be avoided, and the reliability and consistency of electronic equipment can be enhanced. Good grounding can also improve stray and static electricity indicators.
  • the grounding method is not limited to the spring connection method, and can also be directly connected by wire, but the conductor should not be too long to avoid interference when transmitting electrical signals.
  • the connection can also be achieved by screw locks, spring pins, and ejector pins.
  • whether to connect the tuning switch circuit 206 to the key conductor can be determined by observing the key conductor through simulation or network analyzer during the production test process, and the noise situation and location of the key conductor can be known to determine the connection or grounding method of the tuning switch circuit 206 of different types of electronic equipment, and use this method to adjust and remove the noise.
  • the number of the first radiator 204, the second radiator 210, the first conductor 202, and the second conductor 208 in the electronic device provided in the embodiment of the present application may not be unique.
  • the tuning of the tuning switch circuit 206 in the above embodiment is performed for the interference between the conductor and the radiator coupled thereto.
  • the electronic device further includes: a middle plate 212 and a frame 214 .
  • the frame 214 is arranged around the middle plate 212.
  • the frame 214 and the middle plate 212 form a containing space. At least part of the first radiator 204, the second radiator 210, the first conductor 202 and the second conductor 208 can be arranged in the containing space.
  • the first button 201 is arranged corresponding to the first conductor 202. As described in the above embodiment, the corresponding arrangement of the two means that when a key action is performed on the first button 201, for example, the first button 201 is pressed, a first electrical signal will be transmitted on the first conductor 202.
  • the frame 214 and the middle plate 212 form the middle frame of the electronic device, which provides installation space for the electrical components of the electronic device, and can also provide wiring space for the radiator and the conductor.
  • the frame 214 may be a metal frame of the electronic device.
  • the first conductor 202 may be at least partially arranged along the extending direction of the side of the middle plate 212, and the portion of the first conductor 202 arranged in the direction parallel to the side of the middle plate 212 may be provided with a reinforcing plate on the side close to the middle plate 212 to support and reinforce the first conductor 202.
  • the reinforcing plate may be a reinforcing plate of an insulating material. For example, it may be a reinforcing plate of FR-4 flame retardant material grade.
  • the specific form of the reference ground includes but is not limited to the main board, small board or middle board 212 of the electronic device, etc., which is not limited here.
  • the present application does not limit the position of the reference ground.
  • one end of the first radiator 204 can be connected to the middle plate 212 and connected to the reference ground.
  • the other end of the first radiator 204 is a free end.
  • the first radiator 204 can extend from one end connected to the middle plate 212, first in a direction perpendicular to the side of the middle plate 212, and then in a direction parallel to the side of the middle plate 212, to a second length.
  • the first length can be a smaller length, which should be less than or equal to the distance between the side of the middle plate 212 and the frame 214 of the electronic device.
  • the first radiator 204 may be in the form of, but not limited to, a laser direct structuring (LDS) radiator, or a flexible printed circuit (FPC) radiator, or a print direct structuring (PDS) radiator, or a metal branch radiator.
  • the first radiator 204 may also be a mechanical design antenna (MDA) radiator designed using the metal insert of the electronic device 1 itself.
  • MDA mechanical design antenna
  • the first radiator 204 may be an antenna radiator designed using a middle frame formed of plastic and metal of the electronic device.
  • the first radiator may also be a metal branch antenna radiator designed using a metal middle frame.
  • the shapes of the first radiator 204 include, but are not limited to, bent, strip, sheet, rod, coating, film, etc.
  • the formation of the second radiator 210 may be understood with reference to the first radiator 204 .
  • the first radiator 204 is an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator or a metal branch;
  • the second radiator 210 is an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator or a metal branch.
  • the routing of the radiator shown in the diagram is a straight line, in fact, the routing of the radiator and the routing of the conductor are not limited by the diagram.
  • the corners of the radiator and the conductor can also be in other shapes such as arcs. This is only an example and does not limit the specific routing of the radiator.
  • the first conductor 202 may be at least partially disposed on the periphery of the middle plate 212 so as to be disposed opposite to the first button 201 disposed on the side of the middle plate 212 .
  • the first radiator 204 can access the first excitation signal through the first feeding point K1 and the short branch of the feeding circuit connected to the first feeding point K1 to achieve feeding.
  • the short branch of the feeding circuit can be a wire.
  • the second radiator 210 can realize the feeding of the second excitation signal through the second feeding point K2 and the feeding short branch connected thereto.
  • the second conductor 208 may be at least partially disposed on the periphery of the middle plate 212 .
  • the location of the second conductor 208 is not limited by the example given here.
  • the first button 201 may protrude from the outer surface of the frame 214, may be flush with the outer surface of the frame 214, or may be recessed in the outer surface of the frame 214.
  • the relative position relationship between the first button 201 and the frame 214 may be determined according to the user's habits when using the electronic device, and is not limited here.
  • the first radiator 204 is disposed on the periphery of the middle plate 212 of the electronic device.
  • the middle plate 212 may provide a reference ground.
  • the first radiator 204 may be connected to the side of the middle plate 212 at one end and extend on the periphery of the middle plate 212 at the other end as shown in FIG. 1 .
  • the second radiator 210 may be at least partially disposed on the periphery of the middle plate 212 of the electronic device, but this example does not limit the location of the second radiator.
  • the second radiator 210 can be connected to the middle plate 212 at one end to achieve connection with the reference ground.
  • the second radiator 210 can extend from the end connected to the middle plate 212, along the direction perpendicular to the side of the middle plate 212, to a third length, and then extend to a fourth length in a direction parallel to the middle plate 212.
  • the third length should be less than or equal to the distance from the side of the middle plate 212 to the frame of the electronic device.
  • a portion of the second radiator 210 can be used as a part of the frame of the electronic device.
  • the third length and the first length can be equal, that is, the second radiator 210 and the first radiator 204 can be at the same distance from the side of the middle plate 212 as shown in FIG. 3.
  • radiators and conductors in the embodiments of the present application are provided for illustrative purposes only, but do not limit the specific locations of the radiators and conductors in the electronic device.
  • the electronic device provided in the embodiments of the present application does not affect the surrounding of the keys.
  • the communication performance of the radiator antenna can also reuse the conductor corresponding to the button as the antenna radiator, thereby improving space utilization and further improving communication performance.
  • a grounding contact (as shown in FIG. 3 , a black square shown on the side of the middle frame) may be provided on the side of the middle plate 212, and the grounding contact is connected to the grounding point on the first conductor 202 and the grounding point on the second conductor 208 in a one-to-one correspondence.
  • the grounding contact and the grounding point on the conductor may be in contact with each other through a spring.
  • the grounding contact may be a metal protruding contact point, which protrudes from the side of the middle plate 212 and is connected to the middle plate 212.
  • the electronic device further includes: a control unit.
  • the control unit refers to a device with a control function, which may be a processor or a near field communication chip in the electronic device.
  • the control unit is disposed on the middle plate 212 and connected to the first conductor 202.
  • the control unit may be grounded through the middle plate 212.
  • a first electrical signal is transmitted on the first conductor 202 , and the control unit receives and responds to the first electrical signal to execute a control action matching the key action of the first key 201 .
  • the first button 201 is a volume button
  • the first electrical signal is used to represent the volume adjustment action of the first button 201.
  • the control unit responds to the first electrical signal to adjust the volume and change the volume of the audio output by the electronic device.
  • the second button 207 in the electronic device may protrude from the outer surface of the frame 214 .
  • a second electrical signal is transmitted on the second conductor 208, and the control unit is connected to the second conductor 208.
  • the control unit receives and responds to the second electrical signal, and executes a control action matching the key action of the second button 207 to realize the key control function.
  • the second button 207 is a power fingerprint button; the electronic device further includes: a screen, and a fingerprint recognition module.
  • the screen can be set on one side of the middle plate 212.
  • the screen can be a full screen.
  • the control unit is connected to the screen and the fingerprint recognition module.
  • the second conductor 208 transmits a second electrical signal, and the control unit receives and responds to the second electrical signal to wake up the screen and the fingerprint recognition module.
  • Waking up the screen can be lighting up the screen, or it can include displaying a default interface, such as a password unlocking interface.
  • Waking up the fingerprint recognition module means driving the fingerprint recognition module to be in a working state to perform fingerprint recognition.
  • the power fingerprint button and the volume button can be connected to the control mainboard of the electronic device through the board-to-board connector 216 to provide power and signal transmission to the buttons.
  • the buttons can be connected through the common board-to-board connector 216 to improve the utilization rate of the electronic device accommodation space.
  • the controller may be disposed on the middle board 212, and the first conductor 202 and the second conductor 208 may have a conductor section disposed on the middle board 212, as shown in Figure 3.
  • the wiring portion of the first conductor 202 and the second conductor 208 on the middle board 212 and the portion in contact with the middle board 212 are connected to the ground signal of the middle frame through a large area of copper leakage.
  • first conductor 202 and the second conductor 208 may both be FPCs.
  • the portion of the first conductor 202 disposed on the periphery of the middle board 212 may be a copper FPC.
  • a copper leakage area may be reserved at the grounding point on the first conductor 202, one end of the spring contacts the copper leakage area, and the other end contacts the grounding contact corresponding to the grounding point to achieve grounding.
  • a copper leakage area may be reserved at the grounding point on the second conductor 208 to achieve grounding by the spring contact.
  • the copper leakage area reserved on the first conductor 202 and the second conductor 208 may be on a side away from the middle frame, so that a reinforcing plate is provided on a side close to the middle frame.
  • Band represents each frequency band
  • Channel1 represents the channel.
  • TRP Total Radiated Power
  • TIS Total Isotropic Sensitivity
  • the electronic equipment provided by the embodiment of the present application compared with the traditional solution, the original low-frequency B5, B8 TIS is only -81dbm, which belongs to low-frequency strong interference; after adopting the design scheme of the present application, the performance is above -91dbm, which can improve the low-frequency TIS OTA by about 10db (see the 9-15db range covered in the table); in addition, the mid-high frequency TIS can be improved by about 3db; the TIS of 5G NR78 and 5G NR79 can be improved by about 3db.
  • OTA Over-the-Air Technology, refers to air download technology.
  • the interference problem of the FPC on the adjacent radiator antenna can also be solved by setting a ground point on the FPC of the functional components such as the camera, flash, speaker and screen of the electronic device and/or connecting a tuning switch circuit 206 to the FPC.
  • the structure of the electronic device shown in the figure is merely a schematic diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the electronic device of the present application.
  • the specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

Landscapes

  • Support Of Aerials (AREA)

Abstract

一种电子设备。该电子设备包括：第一按键(201)、第一导电体(202)、第一辐射体(204)、调谐开关电路(206)，第一辐射体(204)的第一接地点连接参考地，第一馈电点(K1)馈入第一激励信号，在第一激励信号的激励下辐射第一频段的信号；第一导电体(202)与第一按键(201)对应设置，第一导电体(202)具有与参考地电连接的接地点，第一导电体(202)与第一辐射体(204)至少部分相对设置，第一导电体(202)耦合第一辐射体(204)并支持第二频段的信号；调谐开关电路(206)与第一导电体(202)连接，且调谐开关电路(206)用于调节第一导电体(202)的第二频段的信号的谐振频点，使第二频段和第一频段不同。

Description

电子设备
相关申请的交叉引用
本申请要求于2022年11月17日提交中国专利局，申请号为202211442495.4，申请名称为“电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，特别是涉及一种电子设备。
背景技术
随着通信技术的发展，手机、平板等移动终端设备得到了越来越广泛的应用。为了提高产品使用的便捷性，电子设备的侧边通常设置有音量键、电源键和静音键等快捷按键。
随着全面屏的发展，电子设备的内置空间更加紧凑，按键和天线相互靠近设置，申请人在实施过程中发现，按键的FPC(Flexible Printed Circuit，柔性电路板)会影响周围天线的通信性能。
发明内容
根据本申请公开的各种实施例，提供一种电子设备。
一种电子设备，该电子设备包括：
第一按键；
第一辐射体，第一辐射体设有第一馈电点和第一接地点，第一馈电点用于馈入第一激励信号，第一接地点连接参考地；第一辐射体用于在第一激励信号的激励下支持第一频段的信号；
第一导电体，第一导电体具有与参考地连接的接地点，第一导电体与第一按键对应设置，第一导电体与第一辐射体至少部分相对设置，第一导电体耦合第一辐射体辐射并支持第二频段的信号；
调谐开关电路，调谐开关电路的一端与第一导电体连接，调谐开关电路的另一端接地，且调谐开关电路用于调节第二频段的信号的谐振频点，使第二频段和第一频段不同。
上述电子设备至少具有以下有益效果：
该电子设备，第一辐射体与第一按键对应的第一导电体具有相对设置部分，第一辐射体辐射第一频段的信号，第一导电体耦合第一辐射体支持第二频段的信号辐射，调谐开关电路调节第一导电体的谐振频点，使第一频段和第二频段不同，避免第一导电体耦合第一辐射体能量过程中对第一辐射体造成同频干扰，有利于在保证通信稳定性的情况下实现小型化设计。
此外，由于第一导电体耦合第一辐射体能量的过程中，基于调谐开关电路，可以辐射第二频段的信号，即第一导电体复用为传输表征第一按键动作的第一电信号和辐射第二频段的信号，更进一步有利于小型化设计。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为根据一个或多个实施例中电子设备的结构示意图之一；
图2为根据一个或多个实施例中电子设备的结构示意图之二；
图3为根据一个或多个实施例中电子设备的结构示意图之三；
图4为根据一个或多个实施例中调谐开关电路的结构示意图。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的实施例。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使本申请的公开内容更加透彻全面。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。
可以理解，本申请所使用的术语“第一”、“第二”等可在本文中用于描述各种元件，但这些元件不受这些术语限制。这些术语仅用于将第一个元件与另一个元件区分。
需要说明的是，当一个元件被认为是“连接”另一个元件时，它可以是直接连接到另一个元件，或者通过居中元件连接另一个元件。此外，以下实施例中的“连接”，如果被连接的对象之间具有电信号或数据的传递，则应理解为“电连接”、“通信连接”等。
在此使用时，单数形式的“一”、“一个”和“所述/该”也可以包括复数形式，除非上下文清楚指出另外的方式。还应当理解的是，术语“包括/包含”或“具有”等指定所陈述的特征、整体、步骤、操作、组件、部分或它们的组合的存在，但是不排除存在或添加一个或更多个其他特征、整体、步骤、操作、组件、部分或它们的组合的可能性。同时，在本说明书中使用的术语“和/或”包括相关所列项目的任何及所有组合。
随着5G通信技术的发展，天线辐射体数量日益增多，而全面屏下容置空间越来越小，导致按键的FPC距离侧边金属边框天线的距离往往只有1mm左右，对各种天线的各种频段的无源驻波会产生不同大小的杂波，如700M-6GHz频段，具体可包括GPSL1、L5/wifi2.4G、5G/sub6G/4G等，对各种频段的有源经常造成3-10db的影响。
基于以上原因，本申请提供了一种电子设备。电子设备可以但不限于是各种个人计算机、笔记本电脑、智能手机、平板电脑、物联网设备和便携式可穿戴设备，物联网设备可为智能音箱、智能电视、智能空调、智能车载设备等。便携式可穿戴设备可为智能手表、智能手环、头戴设备等。
在一个实施例中，如图1所示，提供了一种电子设备，包括：第一按键201，第一导电体202，第一辐射体204，以及调谐开关电路206。
第一辐射体204设有第一馈电点K1和第一接地点，第一馈电点K1用于馈入第一激励信号，第一接地点连接参考地。第一激励信号从第一馈电点K1馈入第一辐射体204，并在第一辐射体204上传输后经第一接地点馈入参考地，第一辐射体204传输第一激励信号时辐射第一频段的信号。激励信号可以是激励电流信号。本申请实施例中的馈电点所接入的激励信号，馈电点可以是与电子设备中的通信芯片连接，实现激励信号的馈入和馈出。第一馈电点K1连接馈源，以实现第一激励信号的接入。
如图1所示，第一导电体202具有与参考地电连接的接地点，通过接地点实现地信号的接入。第一导电体202用于与电子设备上的第一按键201对应设置，当针对第一按键201进行按键动作时，第一导电体202上会传输第一电信号，第一电信号用于表征对第一按键201的按键动作，以便控制单元等其他器件通过获取第一电信号来获知按键动作，并响应按键动作。针对第一按键201进行不同的按键动作时，第一导电体202上的第一电信号也不同。
第一导电体202与第一辐射体204至少部分相对设置。第一导电体202与第一辐射体204相对设置部分，是指第一导电体202上能够耦合第一辐射体204辐射电磁波信号时辐射能量的部分。
第一导电体202耦合第一辐射体204辐射第二频段的信号。调谐开关电路206与该第一导电体202连接，且调谐开关电路206可以调节第一导电体202辐射的第二频段的信号的谐振频点，使第二频段与第一频段不同，避免第一导电体202上的感应电流反过来干扰第一辐射体204的通信性能。调谐开关电路206可以从第一导电体202上的任意位置接入。可选的，调谐开关电路206可以从靠近第一导电体202的端点处接入，此时，可以进一步节省第一导电体202延伸位置的布置空间。例如，如图1所示，调谐开关电路206的一端连接第一导电体202的一端，另一端接地。
第一导电体202上的接地点为至少一个，接地点的数量可以与第一导电体202耦合第一辐射体204部分的长度呈正比，长度越长，越容易产生干扰，且越容易对多频段产生干扰，所以，对于长度越长的第一导电体202，接地点的数量越多，以改变第一导电体202的电长度，抑制第一导电体202耦合第一辐射体204能量时的同频干扰。例如，可以如图1所示，在第一导电体202上具有耦合第一辐射体204的部分，该部分导电体的两端分别设置有接地点，以实现第一辐射体204在全频段辐射时的抗干扰保护。例如，对于长度大于5mm的按键导电体(包括上述实施例中的第一导电体202，也包括下述实施例中的第二导电体208)就会开始对sub-6G频段(450MHz到6000MHz的6G以下频段)产生干扰，需要在按键导电体上设置接地点。按键导电体的长度超过15mm可以进一步接入调谐开关电路206来抑制干扰。
其中，第一导电体202和第一辐射体204相互靠近设置，第一导电体202耦合第一辐射体204在辐射第一频段的信号时的能量，产生感应电流，与第一导电体202连接的调谐开关电路206调节该感应电流的频率，使第一导电体202辐射第二频段的信号的谐振频点与第一频段的信号的谐振频点不同，以避免同频干扰，避免小设计空间下按键的导电体对天线通信性能的干扰，提高通信稳定性的同时，有利于实现小型化设计。
此外，第一导电体202不仅用于传输用于表征第一按键201动作的第一电信号，还可以复用为用于辐射第二频段的信号的天线，进一步有利于小型化设计。而且，有利于实现多频段通信。
在其中一个实施例中，第一辐射体204与第一导电体202相对设置部分的间隔距离大于或等于1mm，和/或，小于或等于1.5mm。在1mm-1.5mm之间，既可以保证按键导电体和与其相对设置的辐射体的通信性能，又可以进一步实现小型化设计，提高空间利用率。当按键设置在电子设备用于实现全面屏显示的侧边时，该侧边的容置空间相较于非全面屏的更小，第一辐射体204与第一导电体202相对设置部分的间隔距离大于或等于1mm，和/或，小于或等于1.5mm的设计，有利于在保证通信稳定性的同时实现全面屏设计。
其中，本申请实施例中，按键导电体和对应的辐射体之间的间隔距离，可以通过调整按键对应的补强板的尺寸进行按键导电体和对应的辐射体之间的距离。例如，当补强板为玻璃纤维时，可通过调整玻璃纤维的长短来调整按键导电体和对应的辐射体之间的距离。
在其中一个实施例中，如图2所示，电子设备还包括：第二按键207，以及第二导电体208。第二导电体208具有与参考地电连接的接地点。对于接地点的理解，可以参考第一导电体202的接地点的解释。
第二导电体208与电子设备上的第二按键207对应设置，第二导电体208可以传输用于表征针对第二按键207的按键动作的第二电信号。第二电信号可以通过第二导电体208传输至控制单元等其他器件，以便控制单元等其他器件基于第二电信号响应针对该第二按键207的按键动作。应当理解的是，对于第二按键207来说，对第二按键207进行不同的按键动作，在其对应的第二导电体208上触发的第二电信号也不同。
第二导电体208与第一辐射体204至少部分相对设置。相对设置部分可以进行能量耦合。第二导电体208耦合第一辐射体204并支持第三频段的信号辐射。基于第二导电体208上接地点的设置，改变第二导电体208的电长度，使得第三频段的信号与第一频段的 信号的谐振频点不同，抑制与第一辐射体204同频干扰的同时，第二导电体208还可以复用在第二按键动作的反馈和第三频段的信号辐射，进一步有利于小型化设计和提高通信性能。
在一个实施例中，第二导电体208的长度可以小于第一导电体202的长度。对于长度较短的第二导电体208，可以通过在第二导电体208上设置接地点，改变第二导电体208的电长度，抑制其对与之相近的辐射体的干扰。例如，第二导电体208的长度大于或等于5mm，且小于或等于15mm时，第二导电体208上可仅设置接地点。
在一个实施例中，第二导电体208上也可以接入一调谐开关电路206。对于长度较长的第二导电体208，例如长度大于或等于15mm的第二导电体208，仅通过接地方式，抗干扰效果有限，通过在第二导电体208上接入一调谐开关电路206，通过调谐开关电路206调节第二导电体208辐射第三频段的信号的谐振频点，以避免第二导电体208与其相对设置的辐射体之间的干扰，提高通信可靠性。第一导电体202和第二导电体208所接入的调谐开关电路206可以相同也可以不同。
在其中一个实施例中，电子设备还包括：第二辐射体210。第二辐射体210与第一导电体202至少部分相对设置。
第二辐射体210设有第二馈电点K2和第二接地点，第二馈电点K2用于馈入第二激励信号，第二接地点连接参考地。如图3所示，第二馈电点K2与馈源连接，实现第二激励信号的接入。第二激励信号从第二馈电点K2流入第二辐射体210，经第二辐射体210传输后从第二接地点实现馈电电流回地。
第二辐射体210用于在第二激励信号的激励下辐射第四频段的信号。第一辐射体204和第二辐射体210的长度可以不同。第一辐射体204和第二辐射体210辐射电磁波信号的频段可以不同，以实现电子设备多频段通信。例如，第一辐射体204的通信频段可以是600M-960MHz，第二辐射体210的通信频段可以包括1.7-4.9Ghz。当然，此处仅为举例说明，并不对本申请实施例中第一辐射体204和第二辐射体210的通信频段造成限定。
第二辐射体210辐射第四频段的信号时，第一导电体202耦合第二辐射体210辐射的电磁能量，并产生感应电流，第一导电体202辐射第五频段的信号。调谐开关电路206还调节第一导电体202辐射第五频段的信号的谐振频点，使第五频段不同于第四频段，以抑制第二辐射体210与第一导电体202之间的同频干扰，提高通信可靠性。
在其中一个实施例中，第一辐射体204和第二辐射体210之间间隔设置，且形成一缝隙；第一辐射体204远离缝隙的一端接地；第二辐射体210远离缝隙的一端接地。
在其中一个实施例中，第一辐射体204和第二辐射体210可以均为利用金属中框设计出来的金属枝节天线辐射体。可选的，第一辐射体204和第二辐射体210均为中框的边框走线形成的辐射体，此时，第一辐射体204和第二辐射体210之间形成一缝隙可以理解为边框上开设的缝隙。
在其中一个实施例中，第一辐射体204和第二辐射体210可以均为倒F型天线。
在其中一个实施例中，如图4所示，调谐开关电路206包括：至少一调谐单元2064和切换模块2062。
切换模块2062的输入端连接第一导电体202，切换模块2062的输出端分别连接各调谐单元2064，切换模块2062用于选择接入目标调谐单元2064至第一导电体202；其中，目标调谐单元2064为调谐单元2064中的至少一个。
调谐单元2064可以包括电容、电感及其组合电路中的任意一种。
切换模块2062是指具有选择导通功能的模块，可以包括单刀双掷、双刀双掷以及多刀多掷等切换开关，还可以包括获取辐射体接入的激励信号，并根据激励信号控制切换开关的切换状态的控制器。该控制器可以是单独的控制器，也可以是电子设备中用于提供激励信号的控制芯片本身。控制器根据激励信号，可以确定激励信号馈入辐射体所辐射的电 磁波信号的谐振频点，基于此，控制器可控制切换开关选通至少一个调谐单元2064，调谐单元2064调节按键导电体在耦合辐射体能量生成的感应电流的激励下所辐射的电磁波信号的谐振频点，使该谐振频点异于辐射体辐射电磁波信号的谐振频点，以避免同频干扰。基于调谐单元2064和切换模块2062的设置，可以实现对辐射体全频段电磁波信号的抗干扰保护。此外，也可以复用按键导电体实现多谐振频点电磁波信号的辐射，提高通信频段多样性。
切换模块2062也可以是具有选通功能的芯片，该芯片用于检测通信网络与控制调谐单元2064，实现各个频段的调谐。比如，检测第一辐射体204的通信网络切换到LTE(Long Term Evolution，长期演进)B1频段，就控制如图4所示的调谐单元L1(电感L1)导通接入至第一导电体202。检测通信网络切换到LTE B8频段，就控制调谐单元C1(电容C1)导通接入至第一导电体202，检测通信网络切换到LTE B28，就控制调谐单元C1与调谐单元L1同时导通接入至第一导电体202。至少两个调谐单元2064的设置方式，提供多种调谐组合，接入第一导电体202的调谐单元2064的每一个组合状态，都可以对应一种频段，从而可以实现任意频点的调谐，实现对辐射体全频段通信的抗干扰保护。
在一个实施例中，不同的调谐单元2064可以用于阻挡不同谐振频点的信号。通过接入不同的调谐单元2064可以实现对不同谐振频点的电磁波信号的辐射。
上述实施例中，按键导电体上接地点的接地实现，以及调谐开关电路206的接地实现，均可以通过弹片实现，相较于导电布或者导电泡棉等方式，可避免受潮导致的按键失灵，增强电子设备可靠性与一致性，接地良好的同时也能提升杂散与静电指标。
当然，上述接地实现方式不局限于弹片连接方式，也可以通过导线直接连接，但是导电不宜过长，以免导电传输电信号时造成干扰。此外，也可以采用螺丝锁、弹针以及顶针等方式实现上述连接。
上述实施例中，是否要在按键导电体(按键FPC，包括上述实施例中的第一导电体202和第二导电体208)上接入调谐开关电路206，可以在生产测试过程中通过仿真或网络分析仪对按键导电体观测，可以获知按键导电体的杂波情况以及杂波位置，以确定不同型号电子设备的调谐开关电路206的接入或接地方式，并应用该方式对杂波进行调整与清除。
需要理解的是，本申请实施例提供的电子设备中第一辐射体204、第二辐射体210、第一导电体202和第二导电体208的数量可以不唯一。此时，应当理解为，上述实施例中对调谐开关电路206的调谐，是针对导电体与其耦合的辐射体干扰的情况所进行的。
在一个实施例中，电子设备还包括：中板212和边框214。
边框214环绕中板212设置。边框214与中板212形成一容置空间。第一辐射体204、第二辐射体210、第一导电体202和第二导电体208中的至少部分可以设置在该容置空间内。第一按键201与第一导电体202对应设置。如上述实施例中所述，二者对应设置是指，第一按键201上进行按键动作时，例如第一按键201被按下，第一导电体202上会传输第一电信号。边框214与中板212组成电子设备的中框，为电子设备的电学器件提供安装空间，也可以为辐射体和导电体提供布线空间。
在一个实施例中，边框214可以为电子设备的金属边框。
在一个实施例中，第一导电体202可以至少部分沿中板212侧边的延伸方向设置，且第一导电体202沿中板212侧边平行方向设置的部分，可在靠近中板212所在侧设置有补强板，以支撑与补强该部分的第一导电体202。补强板可以采用绝缘材料的补强板。例如，可以为FR-4耐燃材料等级的补强板。
在一个实施例中，该参考地的具体形式包括但不限于电子设备的主板、小板或者中板212等，在此不作以限定。本申请对于参考地的位置不作以限定。
在一个实施例中，第一辐射体204的一端可以通过与中板212连接，接入参考地，第 一辐射体204的另一端为自由端。可选的，第一辐射体204可以从与中板212连接的一端，先沿与中板212侧边垂直的方向延伸第一长度，再沿中板212侧边平行的方向延伸第二长度。第一长度可以选择较小的长度，应小于或等于中板212的侧边和电子设备的边框214之间的距离。
在一个实施例中，第一辐射体204的形式可以为但不仅限于为激光直接成型(Laser DirectStructuring，LDS)辐射体，或者，柔性电路板(Flexible Printed Circuit，FPC)辐射体，或者印刷直接成型(Print Direct Structuring，PDS)辐射体、或者为金属枝节辐射体。第一辐射体204还可以为利用电子设备1自身嵌件金属设计的结构件天线(Mechanical Design Antenna，MDA)辐射体。比如，第一辐射体204可以为利用电子设备的塑胶及金属形成的中框设计出来的天线辐射体。此外，第一辐射体还可以为利用金属中框设计出来的金属枝节天线辐射体。第一辐射体204的形状皆包括但不限于弯折装、条状、片状、杆状、涂层、薄膜等。
对于第二辐射体210的形成，可参照第一辐射体204来理解。
在其中一个实施例中，第一辐射体204为FPC天线辐射体、LDS天线辐射体、PDS天线辐射体或金属枝节；第二辐射体210为FPC天线辐射体、LDS天线辐射体、PDS天线辐射体或金属枝节。
应当理解的是，虽然图示中给出的辐射体的走线为直线，但实际上辐射体的走线和导电体的走线不受图示限制。另外，关于图示中拐角处为方形折角，实际设计时，辐射体和导电体的拐角也可以呈圆弧形等其他形状，此处仅为举例说明，并不对辐射体的具体走线造成限定。
在一个实施例中，第一导电体202可以至少部分设置在中板212的外围，以便与中板212侧边设置的第一按键201相对设置。
在一个实施例中，第一辐射体204可以通过第一馈电点K1与第一馈电点K1连接的馈路短枝节实现第一激励信号的接入，实现馈电。馈路短枝节可以是导线。
在一个实施例中，第二辐射体210可以通过第二馈电点K2和与其连接的馈电短枝节，实现第二激励信号的馈入。
在一个实施例中，第二导电体208可以至少部分设置在中板212的外围，不过需要说明的是，第二导电体208的设置位置不受此处举例限制。
第一按键201可以凸出边框214的外表面，可以与边框214的外表面平齐，也可以凹陷于边框214的外表面。第一按键201和边框214的相对位置关系，可根据用户使用电子设备时的用户习惯而定，在此不作以限定。
在一个实施例中，第一辐射体204的至少部分设置在电子设备的中板212的外围。中板212可以提供参考地。第一辐射体204可以如图1所示，一端与中板212的侧边连接，另一端在中板212的外围延伸。
在其中一个实施例中，第二辐射体210可以至少部分设置在电子设备的中板212的外围，但此处举例不对第二辐射体的设置位置造成限定。
在一个实施例中，第二辐射体210可以一端与中板212连接，实现与参考地的连接。可选的，第二辐射体210可以从与中板212连接的一端起，沿与中板212的侧边垂直的方向延伸第三长度后，再沿与中板212平行的方向延伸第四长度。第三长度应当小于或等于中板212的侧边到电子设备的边框的距离。第二辐射体210上的一部分可以作为电子设备边框的一部分。第三长度和第一长度可以相等，即第二辐射体210和第一辐射体204可以如图3所示，到中板212侧边的距离相等。
需要说明的是，本申请实施例中对于辐射体及导体的设置位置，作以示例作用，但不对电子设备中辐射体及导体的具体的设置位置造成限定。
通过上述实施例中的描述，可知，本申请实施例提供的电子设备，既不影响按键周围 辐射体天线的通信性能，还可以将按键对应的导电体复用为天线辐射体，提高空间利用率的同时，进一步提高通信性能。
在一个实施例中，中板212的侧边可设置有接地触点(如图3中所示，中框侧边所示的黑色方块)，接地触点一一对应连接第一导电体202上的接地点和第二导电体208上的接地点。接地触点和导电体上的接地点之间可以通过弹片接触。接地触点可以是金属凸起接触点，凸出中板212的侧边，且与中板212连接。
在其中一个实施例中，电子设备还包括：控制单元。控制单元是指具有控制功能的器件。可以是处理器，也可以是电子设备中的近场通信芯片等。
控制单元设置在中板212上，且与第一导电体202连接。控制单元可以通过中板212接地。
当针对第一按键201进行按键动作时，第一导电体202上传输第一电信号，控制单元接收并响应该第一电信号，执行与第一按键201的按键动作相匹配的控制动作。
在其中一个实施例中，第一按键201为音量按键；第一电信号用于表征第一按键201的音量调节动作。当用户通过音量按键进行音量调节动作时，控制单元响应于第一电信号，进行音量调节，改变电子设备输出音频的声音大小。
在其中一个实施例中，电子设备中的第二按键207可以凸出边框214的外表面。
在其中一个实施例中，第二按键207上进行按键动作时，第二导电体208上传输第二电信号，控制单元与第二导电体208连接，控制单元接收并响应第二电信号，执行与第二按键207的按键动作相匹配的控制动作，实现按键控制功能。
在其中一个实施例中，第二按键207为电源指纹按键；电子设备还包括：屏幕，以及指纹识别模块。可选的，屏幕可以设置在中板212的一侧。屏幕可以是全面屏。
控制单元与屏幕和指纹识别模块连接，当第二按键207上存在按键动作时，第二导电体208传输第二电信号，控制单元接收并响应第二电信号，唤醒屏幕和指纹识别模块。唤醒屏幕可以是点亮屏幕，也可以包括显示默认界面，例如密码解锁界面。唤醒指纹识别模块是指驱动指纹识别模块处于工作状态，进行指纹识别。
在其中一个实施例中，电源指纹按键和音量按键可通过板对板连接器216与电子设备的控制主板连接，对按键进行供电和信号传送。按键可以通过公共的板对板连接器216实现该连接，以提高电子设备容置空间的利用率。
在一个实施例中，控制器可以设置在中板212上，第一导电体202和第二导电体208可以具有设置在中板212上的一段导电体，如图3所示。第一导电体202和第二导电体208在中板212上的走线部分与中板212接触的部分通过大面积漏铜接入中框的地信号。
在一个实施例中，第一导电体202和第二导电体208均可以为FPC。第一导电体202设置在中板212外围的部分可以是铜制FPC。
在一个实施例中，第一导电体202上接地点处可预留有漏铜区域，弹片的一端与该漏铜区域接触，另一端与接地点对应的接地触点接触，实现接地。
类似的，对于第二导电体208，第二导电体208上接地点处也可预留漏铜区域，用于实现弹片接触接地。
可选的，第一导电体202和第二导电体208上预留的漏铜区域可在远离中框的一侧，以便在靠近中框的一侧设置补强板。
传统的电子设备包括音量按键、电源指纹按键，体积较大，按键FPC很长，旁边紧邻两个天线(频段可涵盖0-5Ghz)，距离不足1mm，按键FPC对全频段造成3-10db的干扰，此时对按键FPC进行接地无法解决全频段干扰问题。通过将第一导电体202通过调谐开关电路206连接弹片接触中框实现接地，可以对不同频段的杂波(是指对临近的辐射体的通信性能有负面影响的波信号)进行自动调谐，从而实现全频段(如600M-6GHz)信号去干扰。
为更好的说明本申请提供的电子设备的效果，以如图3所示结构下，进行有源数据测试，测试结果如下表所示：
上表中，Band表示各频段，Channe1表示信道。TRP(Total Radiated Power，全向辐射功率)，反映辐射功率的能力。TIS(Total Isotropic Sensitivity，全向辐射灵敏度)，反映电子设备接收灵敏度的情况。传统电子设备在同一频段范围的TIS相差不大，所以，上表中未一一示出。
通过上表可知，对于多个信道的测试，均可发现，本申请实施例提供的电子设备，相较于传统的解决方案来说，原始低频B5、B8的TIS只有-81dbm，属于低频强干扰；采用本申请的设计方案后性能为-91dbm以上，可以提高低频TIS OTA 10db左右(见表中覆盖的9-15db范围)；另外，还可以提升中高频TIS 3db左右；提升5G NR78、5G NR79的TIS 3db左右。其中，OTA，Over-the-Air Technology，是指空中下载技术。
在一个实施例中，也可以在电子设备的摄像头、闪光灯、喇叭以及屏幕等功能部件的FPC上通过设置接地点和/或在FPC上接入调谐开关电路206，解决FPC对其临近辐射体天线的干扰问题。
本领域技术人员可以理解，图中示出的电子设备的结构，仅仅是与本申请方案相关的部分结构的示意图，并不构成对本申请电子设备的限定，具体的电子设备可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
在本说明书的描述中，参考术语“有些实施例”、“其他实施例”、“理想实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特征包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性描述不一定指的是相同的实施例或示例。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种电子设备，所述电子设备包括：
    第一按键；
    第一辐射体，所述第一辐射体设有第一馈电点和第一接地点，所述第一馈电点用于馈入第一激励信号，所述第一接地点连接参考地；所述第一辐射体用于在所述第一激励信号的激励下支持第一频段的信号；
    第一导电体，所述第一导电体具有与所述参考地连接的接地点，所述第一导电体与所述第一按键对应设置，所述第一导电体与所述第一辐射体至少部分相对设置，所述第一导电体耦合所述第一辐射体辐射并支持第二频段的信号；以及
    调谐开关电路，所述调谐开关电路的一端与所述第一导电体连接，所述调谐开关电路的另一端接地，且所述调谐开关电路用于调节所述第二频段的信号的谐振频点，使所述第二频段和所述第一频段不同。
  2. 根据权利要求1所述的电子设备，还包括：
    第二按键；以及
    第二导电体，所述第二导电体具有与所述参考地电连接的接地点，所述第二导电体与所述第二按键对应设置，所述第二导电体与所述第一辐射体至少部分相对设置，所述第二导电体耦合所述第一辐射体并支持第三频段的信号；
    其中，所述第三频段与所述第一频段不同。
  3. 根据权利要求1所述的电子设备，还包括：
    第二辐射体，所述第二辐射体与所述第一导电体至少部分相对设置；
    所述第二辐射体设有第二馈电点和第二接地点，所述第二馈电点用于馈入第二激励信号，所述第二接地点连接所述参考地；所述第二辐射体用于在所述第二激励信号的激励下支持第四频段的信号；
    所述第一导电体耦合所述第一辐射体和所述第二辐射体并支持第五频段的信号；以及
    所述调谐开关电路还用于调节所述第五频段的信号的谐振频点，使所述第五频段和所述第四频段不同。
  4. 根据权利要求1所述的电子设备，所述第一导电体的两个端点处分别设置有接地点。
  5. 根据权利要求1所述的电子设备，所述第一辐射体与所述第一导电体相对设置部分的间隔距离大于或等于1mm。
  6. 根据权利要求1所述的电子设备，所述第一辐射体与所述第一导电体相对设置部分的间隔距离小于或等于1.5mm。
  7. 根据权利要求1所述的电子设备，所述第一辐射体与所述第一导电体相对设置部分的间隔距离大于或等于1mm，且小于或等于1.5mm。
  8. 根据权利要求3所述的电子设备，所述第一辐射体和所述第二辐射体之间间隔设置，且形成一缝隙；
    所述第一辐射体远离所述缝隙的一端接地；
    所述第二辐射体远离所述缝隙的一端接地。
  9. 根据权利要求1所述的电子设备，所述调谐开关电路包括：
    至少一调谐单元；以及
    切换模块，所述切换模块的输入端连接所述第一导电体，所述切换模块的输出端分别连接各所述调谐单元，所述切换模块用于选择接入目标调谐单元至所述第一导电体；其中，所述目标调谐单元为所述调谐单元中的至少一个。
  10. 根据权利要求1所述的电子设备，还包括：
    控制单元，所述控制单元与所述第一导电体连接，所述控制单元用于通过所述第一导电体响应针对所述第一按键的按键动作，执行与所述第一按键的按键动作相匹配的控制动 作。
  11. 根据权利要求10所述的电子设备，所述第一按键为音量按键；
    所述控制单元还用于响应于针对所述音量按键的音量调节动作，进行音量调节。
  12. 根据权利要求2所述的电子设备，还包括：
    控制单元，所述控制单元与所述第二导电体连接，所述控制单元用于通过所述第二导电体响应针对所述第二按键的按键动作，执行与所述第二按键的按键动作相匹配的控制动作。
  13. 根据权利要求12所述的电子设备，所述第二按键为电源指纹按键；所述电子设备还包括：
    屏幕，所述屏幕与所述控制单元连接；以及
    指纹识别模块，所述指纹识别模块与所述控制单元连接；
    所述控制单元用于响应于针对所述电源指纹按键的触发动作，唤醒所述屏幕和所述指纹识别模块。
  14. 根据权利要求1所述的电子设备，所述第一导电体上的接地点的数量与所述第一导电体耦合所述第一辐射体部分的长度呈正比。
  15. 根据权利要求3所述的电子设备，所述第一辐射体和所述第二辐射体均为倒F型天线。
  16. 根据权利要求3所述的电子设备，还包括：
    中板；
    边框，所述边框环绕所述中板设置，且所述边框与所述中板形成一容置空间，所述第一辐射体、所述第二辐射体、所述第一导电体和所述第二导电体中的至少部分设置在所述容置空间内。
  17. 根据权利要求16所述的电子设备，所述第一辐射体和所述第二辐射体均为所述边框走线形成的辐射体。
  18. 根据权利要求16所述的电子设备，所述第一导电体至少部分沿所述中板侧边的延伸方向设置，所述电子设备还包括：
    补强板，所述补强板设置在所述第一导电体沿所述中板侧边平行方向设置的部分，且所述补强板设置在所述第一导电体靠近中板所在侧。
  19. 根据权利要求16所述的电子设备，所述第一导电体至少部分设置在所述中板的外围。
  20. 根据权利要求16所述的电子设备，所述第二导电体至少部分设置在所述中板的外围。
PCT/CN2023/118262 2022-11-17 2023-09-12 电子设备 WO2024103936A1 (zh)

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