WO2022068373A1 - 天线组件和电子设备 - Google Patents

天线组件和电子设备 Download PDF

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Publication number
WO2022068373A1
WO2022068373A1 PCT/CN2021/109935 CN2021109935W WO2022068373A1 WO 2022068373 A1 WO2022068373 A1 WO 2022068373A1 CN 2021109935 W CN2021109935 W CN 2021109935W WO 2022068373 A1 WO2022068373 A1 WO 2022068373A1
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WIPO (PCT)
Prior art keywords
radiator
sub
antenna
frequency band
capacitor
Prior art date
Application number
PCT/CN2021/109935
Other languages
English (en)
French (fr)
Inventor
吴小浦
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
Priority claimed from CN202011066431.XA external-priority patent/CN112086753A/zh
Priority claimed from CN202022223349.5U external-priority patent/CN212277399U/zh
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
Priority to EP21874035.5A priority Critical patent/EP4224631A4/en
Publication of WO2022068373A1 publication Critical patent/WO2022068373A1/zh

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    • 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
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in 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
    • 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
    • H01Q5/335—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 at the feed, e.g. for impedance matching
    • 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
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present application relates to the field of communication technologies, and in particular, to an antenna assembly and an electronic device.
  • An antenna assembly is usually included in an electronic device to realize the communication function of the electronic device.
  • the communication performance of the antenna assembly in the electronic device in the related art is not good enough, and there is still room for improvement.
  • the present application provides an antenna assembly.
  • the antenna assembly includes:
  • a first antenna and a second antenna the first antenna includes a first radiator, a first signal source, and a first frequency selection filter circuit
  • the second antenna includes a second radiator, a second signal source, and a first Two frequency selection filter circuit
  • the first radiator and the second radiator are spaced apart and coupled to each other, one end of the first radiator away from the second radiator is grounded, and the first signal source is electrically connected to the first frequency selection
  • the filter circuit is connected to the first radiator, the end of the second radiator away from the first radiator is grounded, and the second signal source is electrically connected to the second frequency selection filter circuit to the second radiator;
  • the first antenna is used to generate at least one resonance mode
  • the second antenna is used to generate at least two resonance modes
  • the at least two resonance modes of the second antenna are used to cover the first frequency band, the second frequency band and the first frequency band.
  • at least one resonance mode of the second antenna is excited by the capacitive coupling feed between the first antenna and the second antenna.
  • the present application further provides an electronic device including the antenna assembly according to the first aspect.
  • the second antenna can not only transmit and receive electromagnetic wave signals in the first frequency band, but also transmit and receive at least one of electromagnetic wave signals in the second frequency band and electromagnetic wave signals in the third frequency band. Therefore, the antenna assembly has better communication effect.
  • FIG. 1 is a schematic diagram of an antenna assembly provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of an antenna assembly provided in an embodiment of FIG. 1 .
  • FIG. 3 to FIG. 10 are schematic diagrams of sub-frequency selection filter circuits provided by various embodiments, respectively.
  • FIG. 11 is a schematic diagram of an antenna assembly provided by another embodiment of the present application.
  • FIG. 12 is a schematic diagram of an antenna assembly provided by another embodiment of the present application.
  • FIG. 13 is a schematic diagram of an antenna assembly provided by yet another embodiment of the present application.
  • FIG. 14 is a schematic diagram of RL curves of the first antenna and the second antenna in the antenna assembly in one embodiment.
  • FIG. 15 is a schematic diagram of the main current distribution corresponding to mode a.
  • FIG. 16 is a schematic diagram of the main current distribution corresponding to mode b.
  • FIG. 17 is a schematic diagram of the main current distribution corresponding to mode c.
  • Figure 18 shows the main current distribution corresponding to mode d.
  • Figure 19 shows the main current distribution corresponding to mode e.
  • Figure 20 shows the main current distribution corresponding to mode f.
  • FIG. 21 is a perspective structural diagram of an electronic device according to an embodiment of the present application.
  • FIG. 22 is a cross-sectional view of the line I-I in FIG. 21 according to an embodiment.
  • FIG. 23 is a top view of a metal frame according to an embodiment of the application.
  • FIG. 24 is a top view of a metal frame body in another embodiment of the present application.
  • FIG. 25 is a schematic diagram of the positions of the first radiator and the second radiator in the electronic device in an embodiment.
  • FIG. 26 is a schematic diagram of the positions of the first radiator and the second radiator in the electronic device in another embodiment.
  • the first mode of the embodiments of the present application provides an antenna assembly, the antenna assembly includes:
  • a first antenna and a second antenna the first antenna includes a first radiator, a first signal source, and a first frequency selection filter circuit
  • the second antenna includes a second radiator, a second signal source, and a first Two frequency selection filter circuit
  • the first radiator and the second radiator are spaced apart and coupled to each other, one end of the first radiator away from the second radiator is grounded, and the first signal source is electrically connected to the first frequency selection
  • the filter circuit is connected to the first radiator, the end of the second radiator away from the first radiator is grounded, and the second signal source is electrically connected to the second frequency selection filter circuit to the second radiator;
  • the first antenna is used to generate at least one resonance mode
  • the second antenna is used to generate at least two resonance modes
  • the at least two resonance modes of the second antenna are used to cover the first frequency band, the second frequency band and the first frequency band.
  • at least one resonance mode of the second antenna is excited by the capacitive coupling feed between the first antenna and the second antenna.
  • the first antenna has a first resonance mode, a second resonance mode, and a third resonance mode
  • the second antenna has a fourth resonance mode, a fifth resonance mode, and a sixth resonance mode
  • the first resonance mode The resonance mode, the second resonance mode, the third resonance mode, the fourth resonance mode, the fifth resonance mode, and the sixth resonance mode jointly cover the transmission and reception of electromagnetic wave signals in the MHB and UHB frequency bands.
  • the first frequency selection filter circuit and the second frequency selection filter circuit are used to adjust the resonant frequency of the first antenna according to the preset first frequency selection parameter, so that the first antenna resonates at the first frequency a resonance mode, the second resonance mode and the third resonance mode, wherein, in the first resonance mode, the first antenna is used to send and receive electromagnetic wave signals of a fourth frequency band; in the second resonance mode In the mode, the first antenna is used to send and receive electromagnetic wave signals of the fifth frequency band; in the third resonance mode, the first antenna is used to send and receive electromagnetic wave signals of the sixth frequency band and the seventh frequency band.
  • the first radiator includes a first sub-radiator, a second sub-radiator, and a third sub-radiator, the first sub-radiator, the second sub-radiator, and the third sub-radiator
  • the radiators are bent and connected in sequence, and the first sub-radiator and the third sub-radiator are both located on the same side of the second sub-radiator, and the first sub-radiator has a distance away from the second sub-radiator.
  • the first ground terminal is grounded
  • the second sub-radiator has a first feeding point
  • the first feeding point is electrically connected to the first frequency selection filter circuit
  • the first The three sub-radiators have first free ends facing away from the second sub-radiators, the first free ends being disposed adjacent to the second radiators.
  • the current on the first radiator flows through the first feeding point and the first free end in sequence from the first ground terminal;
  • the current on the first radiator sequentially flows from the first feeding point to the connection between the second sub-radiator and the third sub-radiator point and the first free end;
  • the current on the first radiator includes a first sub-current and a second sub-current, and the first sub-current flows to the first sub-current through the first ground terminal a first feeding point, the second sub-current flows to the first feeding point via the first free end.
  • the fourth frequency band includes the GPS-L1 frequency band
  • the fifth frequency band includes the LTE MHB frequency band
  • the sixth frequency band includes the WIFI 2.4G frequency band
  • the seventh frequency band includes the N41 frequency band.
  • the first frequency selection circuit and the second frequency selection circuit are used to adjust the resonant frequency of the second antenna according to a preset second frequency selection parameter, so that the second antenna resonates at the first frequency.
  • Four resonance modes, the fifth resonance mode, and the sixth resonance mode wherein, in the fourth resonance mode, the second antenna is used to send and receive electromagnetic wave signals of the first frequency band; in the fifth resonance mode In the resonance mode, the second antenna is used for transmitting and receiving electromagnetic wave signals in the second frequency band and the third frequency band; in the sixth resonance mode, the second antenna is used for transmitting and receiving electromagnetic wave signals in the eighth frequency band.
  • the second radiator includes a fourth sub-radiator and a fifth sub-radiator
  • the fourth sub-radiator is connected to the fifth sub-radiator by bending
  • the fourth sub-radiator has a distance away from the second free end of the fifth sub-radiator, the second free end is spaced from the first radiator
  • the fifth sub-radiator has a second feeding point
  • the second feeding point The second frequency selection filter circuit is electrically connected
  • the fifth sub-radiator has a second ground terminal away from the fourth sub-radiator, and the second ground terminal is grounded.
  • the current on the second radiator flows from the second free end to the second grounding end, and also flows from the second radiator The second feed point flows to the second ground terminal;
  • the current on the second radiator flows to the second free end via the second feeding point.
  • the first frequency band includes the N78 frequency band
  • the second frequency band includes the N77 frequency band
  • the third frequency band includes the N79 frequency band
  • the eighth frequency band includes the WIFI 5G frequency band.
  • the first radiator includes a first sub-radiator and a second sub-radiator, the first sub-radiator is connected to the second sub-radiator by bending, and the first sub-radiator has a The first ground terminal of the second sub-radiator, the first ground terminal is grounded, the second sub-radiator has a first free end away from the first sub-radiator, and the first free end is adjacent to the The second radiator is provided, and the second sub-radiator has a first feeding point to electrically connect the first frequency selection filter circuit; the second radiator includes a third sub-radiator and a fourth sub-radiator , the third sub-radiator is connected to the fourth sub-radiator by bending, the third sub-radiator has a second free end away from the fourth sub-radiator, and the second free end is connected to the fourth sub-radiator.
  • the first free ends are spaced apart, the third sub-radiator has a second feeding point to electrically connect the second frequency selection filter circuit, and the fourth sub-radiator has a distance away from the third sub
  • the size d of the gap between the first radiator and the second radiator is: 0.5mm ⁇ d ⁇ 1.5mm.
  • the first frequency selection filter circuit includes one or more sub frequency selection filter circuits
  • the second frequency selection filter circuit includes one or more sub frequency selection filter circuits
  • the sub frequency selection filter circuit is also used to isolate the first frequency selection filter circuit.
  • the sub-frequency selection filter circuit includes one or more of the following circuits:
  • a bandpass circuit formed by an inductor and a capacitor connected in series;
  • a band-stop circuit formed by an inductor and a capacitor in parallel
  • inductor an inductor, a first capacitor, and a second capacitor
  • the inductor is connected in parallel with the first capacitor
  • the second capacitor is electrically connected to a node where the inductor and the first capacitor are electrically connected
  • the capacitor is connected in parallel with the first inductor, and the second inductor is electrically connected to a node where the capacitor is electrically connected to the first inductor;
  • the inductor is connected in series with the first capacitor, and one end of the second capacitor is electrically connected to the first end of the inductor that is not connected to the first capacitor, the first The other end of the second capacitor is electrically connected to one end of the first capacitor that is not connected to the inductor;
  • the capacitor is connected in series with the first inductor, one end of the second inductor is electrically connected to one end of the capacitor not connected to the first inductor, and the other end of the second inductor electrically connecting one end of the first inductor that is not connected to the capacitor;
  • first capacitor is connected in parallel with the first inductor
  • second capacitor is connected in parallel with the second inductor
  • the second capacitor is connected with One end of the whole formed by the second inductance in parallel is electrically connected to one end of the whole formed by the first capacitor and the first inductance in parallel;
  • a first capacitor, a second capacitor, a first inductor, and a second inductor the first capacitor is connected in series with the first inductor to form a first unit, and the second capacitor is connected in series with the second inductor to form a second unit , and the first unit is connected in parallel with the second unit.
  • an embodiment of the present application provides an electronic device, where the electronic device includes the antenna assembly according to the first aspect and any implementation manner of the first aspect.
  • the electronic device further includes a metal frame, the metal frame includes a frame body, a first metal segment, and a second metal segment, and the first metal segment and the second metal segment are spaced apart , there are gaps between the first metal segment and the second metal segment and the frame body respectively, and the end of the first metal segment facing away from the second metal segment is connected to the frame body, so One end of the second metal segment away from the first metal segment is connected to the frame body, wherein the first radiator includes the first metal segment, and the second radiator includes the second metal part.
  • the metal frame includes a frame, the frame is bent and connected to the periphery of the frame body, and the first metal segment and the second metal segment are formed on the frame.
  • the electronic device further includes a ground system
  • the ground system includes one or more of a middle frame, a circuit board, and a display screen, and an end of the first radiator facing away from the second radiator is electrically connected
  • the ground system is grounded, and one end of the second radiator away from the first radiator is electrically connected to the ground system to ground.
  • the electronic device includes a top and a bottom, and both the first radiator and the second radiator are arranged on the top.
  • the present application provides an antenna assembly 10 .
  • the antenna assembly 10 can be applied to the electronic device 1, and the electronic device 1 includes, but is not limited to, a mobile phone, an Internet device (mobile internet device, MID), an e-book, a portable play station (Play Station Portable, PSP) or a personal An electronic device 1 with a communication function, such as a digital assistant (Personal Digital Assistant, PDA).
  • a mobile phone an Internet device (mobile internet device, MID), an e-book, a portable play station (Play Station Portable, PSP) or a personal
  • An electronic device 1 with a communication function such as a digital assistant (Personal Digital Assistant, PDA).
  • PDA Personal Digital Assistant
  • FIG. 1 is a schematic diagram of an antenna assembly provided by an embodiment of the present application.
  • the antenna assembly 10 includes a first antenna 110 and a second antenna 120 .
  • the first antenna 110 includes a first radiator 111 , a first signal source 112 , and a first frequency selection filter circuit 113 .
  • the second antenna 120 includes a second radiator 121 , a second signal source 122 , and a second frequency selection filter circuit 123 .
  • the first radiator 111 and the second radiator 121 are spaced apart and coupled to each other.
  • the first signal source 112 is electrically connected to the first frequency selection filter circuit 113 to the first radiator 111
  • the second radiator One end of 121 away from the first radiator 111 is grounded
  • the second signal source 122 is electrically connected to the second frequency selection filter circuit 123 to the second radiator 121 .
  • the first antenna 110 is used to generate at least one resonance mode
  • the second antenna 120 is used to generate at least two resonance modes
  • the at least two resonance modes of the second antenna 120 are used to cover the first frequency band
  • the second For the transmission and reception of electromagnetic wave signals in the frequency band and the third frequency band, at least one resonance mode of the second antenna 120 is excited by the capacitive coupling feed between the first antenna 110 and the second antenna 120 .
  • the resonance modes of the first antenna 110 and the second antenna 120 will be described below with reference to FIG. 14 and FIGS. 15-20 .
  • the first antenna 110 has a first resonance mode, a second resonance mode, and a third resonance mode.
  • the second antenna 120 has a fourth resonance mode, a fifth resonance mode, and a sixth resonance mode.
  • the first resonance mode, the second resonance mode, the third resonance mode, the fourth resonance mode, the fifth resonance mode, and the sixth resonance mode collectively cover mid-high frequency (MHB) and The transmission and reception of electromagnetic wave signals in the ultra-high frequency (UHB) frequency band.
  • the resonance mode here is also called a resonance mode.
  • the frequency band range of the MHB is 1000MHz-3000MHz
  • the frequency band range of the UHB is 3000MHz-6000MHz.
  • the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 are used to adjust the resonant frequency of the first antenna 110 according to the preset first frequency selection parameters, so that the first antenna 110 resonates at the desired frequency.
  • the first resonance mode, the second resonance mode and the third resonance mode wherein, in the first resonance mode, the first antenna 110 is used to send and receive electromagnetic wave signals of the fourth frequency band;
  • the first antenna 110 is used for transmitting and receiving electromagnetic wave signals in the fifth frequency band;
  • in the third resonance mode the first antenna 110 is used for transmitting and receiving electromagnetic wave signals in the sixth frequency band and the seventh frequency band .
  • the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 are used to adjust the resonant frequency of the second antenna 120 according to a preset second frequency selection parameter, so that the The two antennas 120 resonate in the fourth resonance mode, the fifth resonance mode, and the sixth resonance mode, wherein, in the fourth resonance mode, the second antenna 120 is used for transmitting and receiving the first frequency band in the fifth resonance mode, the second antenna 120 is used for transmitting and receiving electromagnetic wave signals in the second frequency band and the third frequency band; in the sixth resonance mode, the second antenna 120 is used for transmitting and receiving the first frequency Eight-band electromagnetic wave signal.
  • the first frequency band includes the N78 frequency band (3.3GHz ⁇ 3.8GHz)
  • the second frequency band includes the N77 frequency band (3.3GHz ⁇ 4.2GHz)
  • the third frequency band includes the N79 frequency band (4.4GHz ⁇ 4.2GHz) 5.0GHz
  • the eighth frequency band includes the WIFI 5G frequency band (5.725GHz ⁇ 5.825GHz).
  • the fourth frequency band includes the GPS-L1 frequency band
  • the fifth frequency band includes the LTE MHB frequency band
  • the sixth frequency band includes the WIFI 2.4G frequency band
  • the seventh frequency band includes the N41 frequency band (2496MHz-2690MHz).
  • the first radiator 111 is a Flexible Printed Circuit (FPC) antenna radiator or a Laser Direct Structuring (LDS) antenna radiator, or a Print Direct Structuring (PDS) antenna
  • the radiator is either a metal branch;
  • the second radiator 121 is an FPC antenna radiator or an LDS antenna radiator, or a PDS antenna radiator, or a metal branch.
  • the second antenna 120 can transmit and receive the first frequency band The electromagnetic wave signal of the second frequency band and the third frequency band cannot be sent and received.
  • the first signal source 112 is electrically connected to the first frequency selection filter circuit 113 to the first radiator 111
  • the second signal source 122 is electrically connected to the second frequency selection filter circuit 123 to the second radiator 121
  • the frequency selection parameters (including resistance value, inductance value and capacitance value) of the first frequency selection filter circuit 113 are set by setting , and the frequency selection parameters (including resistance value, inductance value and capacitance value) of the second frequency selection filter circuit 123, so that the second antenna 120 can send and receive electromagnetic wave signals of the first frequency band, and can send and receive the second frequency band and The electromagnetic wave signal of at least one frequency band in the third frequency band.
  • the specific circuit forms of the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 will be described later.
  • the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 may also be referred to as matching circuits.
  • the aforementioned first signal source 112 is electrically connected to the first frequency selection filter circuit 113 to the first radiator 111 means that the first signal source 112 is electrically connected to the first frequency selection filter
  • the input end of the circuit 113 and the output end of the first frequency selection filter circuit 113 are electrically connected to the first radiator 111 .
  • the second signal source 122 is electrically connected to the second frequency selection filter circuit 123 to the second radiator 121, which means that the second signal source 122 is electrically connected to the input end of the second frequency selection filter circuit 123, so the The output end of the second frequency selection filter circuit 123 is electrically connected to the second radiator 121 .
  • the first signal source 112 is used to generate a first excitation signal, and the first excitation signal is loaded on the first radiator 111 through the first frequency selection filter circuit 113, so that the first radiator 111 radiates electromagnetic wave signals.
  • the second signal source 122 is used to generate a second excitation signal, and the second excitation signal is loaded on the second radiator 121 via the second frequency selection filter circuit 123, so that the second radiator 121 radiates electromagnetic wave signals.
  • the first radiator 111 and the second radiator 121 are spaced apart and coupled to each other, that is, the first radiator 111 and the second radiator 121 have a common aperture, when the antenna assembly 10 operates , the second excitation signal generated by the second signal source 122 can be coupled to the first radiator 111 via the second radiator 121 , in other words, the second antenna 120 can not only use the
  • the second radiator 121 can also use the first radiator 111 in the first antenna 110 to send and receive electromagnetic wave signals, so that the second antenna 120 can operate in a wider frequency band.
  • the first radiator 111 and the second radiator 121 are spaced apart and coupled to each other.
  • the first excitation signal generated by the first signal source 112 can also pass through the The first radiator 111 is coupled to the second radiator 121 , in other words, the first antenna 110 can use not only the first radiator 111 but also the second radiator 120 when working.
  • the radiator 121 is used to send and receive electromagnetic wave signals, so that the first antenna 110 can operate in a wider frequency band. Since the first antenna 110 can use not only the first radiator 111 but also the second radiator 121 when working, the second antenna 120 can use not only the second radiator 121 but also the first radiator 111 when working.
  • the multiplexing of the radiators and the multiplexing of the space are realized, which is beneficial to reduce the size of the antenna assembly 10 .
  • the second antenna 120 can only transmit and receive electromagnetic wave signals of the first frequency band, but does not support the electromagnetic wave signals of the second frequency band or the third frequency band. If it needs to support the electromagnetic wave signals of the second frequency band, an additional The antenna supports the electromagnetic wave signal of the second frequency band; if it needs to support the electromagnetic wave signal of the third frequency band, an additional antenna needs to be set up to support the electromagnetic wave signal of the third frequency band. It can be seen that more antennas are required in the related technology to support the electromagnetic wave signal of the third frequency band.
  • the electromagnetic wave signals of the first frequency band, the second frequency band, and the third frequency band result in a larger volume of the antenna assembly 10 .
  • the antenna assembly 10 in this embodiment does not need an additional antenna to support the electromagnetic wave signal of the second frequency band and the electromagnetic wave signal of the third frequency band, therefore, the antenna assembly 10 is small in size. Setting an additional antenna to support the electromagnetic wave signal of the second frequency band and setting an additional antenna to support the electromagnetic wave signal of the third frequency band can also lead to a higher cost of the antenna assembly 10; when the antenna assembly 10 is applied to the electronic device 1, the antenna assembly 10 is added. Difficulty stacking with other devices. In this embodiment, the antenna assembly does not need an additional antenna to support the electromagnetic wave signal of the second frequency band and the electromagnetic wave signal of the third frequency band. Therefore, the cost of the antenna assembly 10 is low; when the antenna module is applied to the electronic device 1 for stacking Difficulty is low.
  • setting additional antennas to support electromagnetic wave signals of the second frequency band and setting additional antennas to support electromagnetic wave signals of the third frequency band may also lead to an increase in the insertion loss of the radio frequency link of the antenna assembly 10 .
  • the second antenna 120 described in the present application is capable of transmitting and receiving electromagnetic wave signals of the first frequency band, and electromagnetic wave signals of at least one frequency band among the electromagnetic wave signals of the second frequency band and the electromagnetic wave signal of the third frequency band, the insertion loss of the radio frequency link can be reduced.
  • the first signal source 112 may be provided on the circuit board 50 (see FIGS. 21 and 22 ) in the electronic device 1 .
  • the second signal source 122 may also be provided on the circuit board 50 in the electronic device 1 .
  • the first frequency selection filter circuit 113 may be provided on the circuit board 50 in the electronic device 1 .
  • the second frequency selection filter circuit 123 may be provided on the circuit board 50 in the electronic device 1 .
  • the settings of the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 can help the second antenna 120 to transmit and receive electromagnetic wave signals of the first frequency band. Send and receive electromagnetic wave signals of the second frequency band and electromagnetic wave signals of the third frequency band.
  • the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 are also used for isolating the first antenna 110 and the second antenna 120 .
  • the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 can also isolate the electromagnetic wave signals transmitted and received by the first antenna 110 and the electromagnetic wave signals transmitted and received by the second antenna 120 from each other. interference.
  • FIG. 2 is a schematic diagram of the antenna assembly provided in an embodiment of FIG. 1 .
  • the first frequency selection filter circuit 113 includes one or more sub-frequency selection filter circuits 113a
  • the second frequency selection filter circuit 123 includes one or more sub-frequency selection filter circuits 113a.
  • the frequency filter circuit 113 a is also used to isolate the first antenna 110 and the second antenna 120 .
  • the first frequency selection filter circuit 113 includes two sub-frequency selection filter circuits 113a connected in parallel
  • the second frequency selection filter circuit 123 includes two series sub-frequency selection filter circuits.
  • 113a is taken as an example for illustration.
  • Each sub-frequency selection filter circuit 113a in the first frequency selection filter circuit 113 and each sub-frequency selection filter circuit 113a in the second frequency selection filter circuit 123 can isolate the first antenna 110 and the second antenna 120 .
  • each sub-frequency selection filter circuit 113a in the first frequency selection filter circuit 113 and each sub-frequency selection filter circuit 113a in the second frequency selection filter circuit 123 can enable the first antenna 110 to transmit and receive The electromagnetic wave signal and the electromagnetic wave signal sent and received by the second antenna 120 do not interfere with each other.
  • the sub-frequency selection filter circuit 113a in the first frequency selection filter circuit 113 may be the same as or different from the sub-frequency selection filter circuit 113a in the second frequency selection filter circuit 123 .
  • the relationship between the plurality of sub frequency selection filter circuits 113a may be series, parallel, or the like.
  • the second frequency selection filter circuit 123 includes a plurality of sub frequency selection filter circuits 113a
  • the relationship between the plurality of sub frequency selection filter circuits 113a may be series, parallel, or the like.
  • FIG. 3 to FIG. 10 are schematic diagrams of sub-frequency selective filter circuits provided by various embodiments respectively.
  • the sub-frequency selection filter circuit 113a includes one or more of the following circuits.
  • the sub-frequency selection filter circuit 113 a includes a band-pass circuit formed by an inductor L0 and the capacitor C0 in series.
  • the sub-frequency selection filter circuit 113a includes a band-stop circuit formed by an inductor L0 and a capacitor C0 in parallel.
  • the sub-frequency selection filter circuit 113a includes an inductor L0, a first capacitor C1, and a second capacitor C2.
  • the inductor L0 is connected in parallel with the first capacitor C1, and the second capacitor C2 is electrically connected to a node where the inductor L0 and the first capacitor C1 are electrically connected.
  • the sub-frequency selection filter circuit 113 a includes a capacitor C0 , a first inductor L1 , and a second inductor L2 .
  • the capacitor C0 is connected in parallel with the first inductor L1, and the second inductor L2 is electrically connected to a node where the capacitor C0 and the first inductor L1 are electrically connected.
  • the sub-frequency selection filter circuit 113 a includes an inductor L0 , a first capacitor C1 , and a second capacitor C2 .
  • the inductor L0 is connected in series with the first capacitor C1, one end of the second capacitor C2 is electrically connected to the first end of the inductor L0 that is not connected to the first capacitor C1, and the other end of the second capacitor C2 is electrically connected One end of the first capacitor C1 that is not connected to the inductor L0 is electrically connected.
  • the sub-frequency selection filter circuit 113a includes a capacitor C0, a first inductor L1, and a second inductor L2.
  • the capacitor C0 is connected in series with the first inductor L1, one end of the second inductor L2 is electrically connected to one end of the capacitor C0 that is not connected to the first inductor L1, and the other end of the second inductor L2 is electrically connected to the first inductor L1.
  • An inductor L1 is not connected to one end of the capacitor C0.
  • the sub-frequency selection filter circuit 113a includes a first capacitor C1, a second capacitor C2, a first inductor L1, and a second inductor L2.
  • the first capacitor C1 is connected in parallel with the first inductor L1
  • the second capacitor C2 is connected in parallel with the second inductor L2
  • the second capacitor C2 and the second inductor L2 are connected in parallel to form one end of the whole
  • One end of the whole formed in parallel with the first capacitor C1 and the first inductor L1 is electrically connected.
  • the sub-frequency selection filter circuit 113a includes a first capacitor C1, a second capacitor C2, a first inductor L1, and a second inductor L2.
  • the first capacitor C1 and the The first inductor L1 is connected in series to form a first unit 113b
  • the second capacitor C2 is connected in series with the second inductor L2 to form a second unit 113c
  • the first unit 113b is connected in parallel with the second unit 113c.
  • FIG. 11 is a schematic diagram of an antenna assembly provided by another embodiment of the present application.
  • the excitation signal generated by the second signal source 122 is capacitively coupled and fed to the second radiator 121 after passing through the second frequency selection filter circuit 123 .
  • the output end of the second frequency selection filter circuit 123 is electrically connected to one end of the coupling capacitor C3 , and one end of the coupling capacitor C3 is electrically connected to the second radiator 121 .
  • the excitation signal (ie, the second excitation signal) generated by the second signal source 122 is fed to the second radiator 121 through the coupling capacitor C3 after passing through the second frequency selection filter circuit 123 .
  • a coupling capacitor C3 is formed between the output end of the second frequency selection filter circuit 123 and the second radiator 121, and the excitation signal (ie, the second radiator) generated by the second signal source 122 After passing through the second frequency selection filter circuit 123, the excitation signal is fed to the second radiator 121 through the coupling capacitor C3.
  • the excitation signal generated by the second excitation source is directly coupled to the second radiator 121 after passing through the second frequency selection filter circuit 123 .
  • the second excitation source is electrically connected to the input end of the second frequency selection filter circuit 123
  • the output end of the second frequency selection filter circuit 123 is directly electrically connected to the second radiator 121 .
  • the first radiator 111 includes a first sub-radiator 1111 , a second sub-radiator 1112 , and a third sub-radiator 1113 .
  • the first sub-radiator 1111, the second sub-radiator 1112, and the third sub-radiator 1113 are connected by bending in sequence, and the first sub-radiator 1111 and the third sub-radiator 1113 Both are located on the same side of the second sub-radiator 1112 .
  • the first sub-radiator 1111 has a first ground terminal G1 away from the second sub-radiator 1112, the first ground terminal G1 is grounded, the second sub-radiator 1112 has a first feeding point P1, The first feeding point P1 is electrically connected to the first frequency selection filter circuit 112 , the third sub-radiator 1113 has a first free end F1 away from the second sub-radiator 1112 , and the first free end F1 is The end F1 is disposed adjacent to the second radiator 121 .
  • the second radiator 121 includes a fourth sub-radiator 1211 and a fifth sub-radiator 1212 .
  • the fourth sub-radiator 1211 is connected to the fifth sub-radiator 1212 by bending, and the fourth sub-radiator 1211 has a second free end F2 away from the fifth sub-radiator 1212.
  • the two free ends F2 are spaced apart from the first radiator 111 .
  • the second free end F2 is spaced apart from one end of the third sub-radiator 1113 in the first radiator 111 that is away from the second sub-radiator 1112 .
  • the fifth sub-radiator 1212 has a second feeding point P2 , and the second feeding point P2 is electrically connected to the second frequency selection filter circuit 123 .
  • the fifth sub-radiator 1212 has a second ground terminal G2 away from the fourth sub-radiator 1211 , and the second ground terminal G2 is grounded.
  • Such structural arrangement of the first radiator 111 and the second radiator 121 can facilitate the arrangement of the antenna assembly 10 corresponding to the corner of the electronic device 1 .
  • the antenna assembly 10 is set corresponding to the corner of the electronic device 1 , when the user uses the electronic device 1 , the antenna assembly 10 is difficult to be held by the user, so that the electronic device to which the antenna assembly 10 is applied can be used. 1 has a relatively good communication effect.
  • the first sub-radiator 1111 , the second sub-radiator 1112 and the third sub-radiator 1113 are all rectangular for illustration.
  • the shapes of the first sub-radiator 1111 , the second sub-radiator 1112 and the third sub-radiator 1113 may also be other shapes.
  • the fourth sub-radiator 1211 and the fifth sub-radiator 1212 are both rectangular in shape as an example for illustration.
  • the first The shapes of the fourth sub-radiator 1211 and the fifth sub-radiator 1212 may also be other shapes.
  • the first sub-radiator 1111 and the third sub-radiator 1113 both extend along the first direction D1, the second sub-radiator 1112 extends along the second direction D2, and the first sub-radiator 1112 extends along the second direction D2.
  • a direction D1 is perpendicular to the second direction D2.
  • the fourth sub-radiator 1211 is disposed opposite to the third sub-radiator 1113, and the fourth sub-radiator 1211 extends along the first direction D1.
  • the fifth sub-radiator 1212 extends along the second direction D2. It can be understood that, in other embodiments, the first direction D1 and the second direction D2 may not be perpendicular, and the first sub-radiator 1111 may not be parallel to the third sub-radiator 1113 .
  • the shapes and extending directions of the first sub-radiator 1111 , the second sub-radiator 1112 , and the third sub-radiator 1113 can be adjusted according to the environment in which the antenna assembly 10 is applied.
  • the shapes and extending directions of the fourth sub-radiator 1211 and the fifth sub-radiator 1212 can also be adjusted according to the environment in which the antenna element is applied.
  • the first frequency selection filter circuit 113 is electrically connected to the first feed point P1 , and the first feed point P1 of the first radiator 111 is located at the second sub-radiator 1112 or For the third sub-radiator 1113, when the first feeding points P1 on the first radiator 111 are located at different positions, the current distribution on the first radiator 111 is different.
  • FIG. 13 is a schematic diagram of an antenna assembly provided by yet another embodiment of the present application.
  • the first radiator 111 includes a first sub-radiator 1111 and a second sub-radiator 1112 .
  • the first sub-radiator 1111 is connected to the second sub-radiator 1112 by bending, and the first sub-radiator 1111 has a first ground terminal G1 away from the second sub-radiator 1112.
  • the ground terminal G1 is grounded, the second sub-radiator 1112 has a first free end F1 away from the first sub-radiator 1111 , and the first free end F1 is disposed adjacent to the second radiator 121 .
  • the second sub-radiator 1112 has a first feeding point P1 to be electrically connected to the first frequency selection filter circuit 113 .
  • the second radiator 121 includes a third sub-radiator 1113 and a fourth sub-radiator 1211, the third sub-radiator 1113 is connected to the fourth sub-radiator 1211 by bending, and the third sub-radiator 1211 1113 has a second free end F2 facing away from the fourth sub-radiator 1211, and the second free end F2 is spaced apart from the first free end F1. That is, the second free end F2 is spaced apart from the end of the second sub-radiator 1112 facing away from the first sub-radiator 1111 .
  • the third sub-radiator 1113 has a second feeding point P2 to electrically connect the second frequency selection filter circuit 123 , and the fourth sub-radiator 1211 has a second ground away from the third sub-radiator 1113 terminal G2, the second ground terminal G2 is grounded.
  • the structural arrangement of the first radiator 111 and the second radiator 121 can facilitate the arrangement of the antenna assembly 10 corresponding to the side of the electronic device 1 .
  • the antenna assembly 10 is disposed corresponding to the side (eg, the top side) of the electronic device 1
  • the antenna assembly 10 is difficult for the user to use.
  • the electronic device 1 to which the antenna assembly 10 is applied can have a better communication effect.
  • the second antenna 120 is also used to transmit and receive electromagnetic wave signals in the WIFI 5G frequency band (5.725GHz-5.825GHz). Specifically, set the frequency selection parameters of the first frequency selection filter circuit 113 (including resistance value, inductance value and capacitance value), and the frequency selection parameters of the second frequency selection filter circuit 123 (including resistance value, inductance value and capacitance value) , so that the second antenna 120 can transmit and receive electromagnetic wave signals in the first frequency band, and can transmit and receive electromagnetic wave signals in at least one frequency band of the second frequency band and the third frequency band, and can also enable the second antenna 120 to transmit and receive the WIFI 5G frequency band. electromagnetic wave signal.
  • the second antenna 120 transmits and receives electromagnetic wave signals in the first frequency band, and can receive and transmit electromagnetic wave signals in at least one frequency band of the second frequency band and the third frequency band, and can also receive and transmit electromagnetic wave signals in the WIFI 5G frequency band, It means that the second antenna 120 can transmit and receive electromagnetic wave signals in the first frequency band, electromagnetic wave signals in at least one frequency band of the second frequency band and third frequency band, and electromagnetic wave signals in the WIFI 5G frequency band at the same time.
  • the length of the first radiator 111 is greater than the length of the second radiator 121 , and the frequency band of the electromagnetic wave signal sent and received by the first antenna 110 is lower than that of the electromagnetic wave signal sent and received by the second antenna 120 frequency band.
  • the length of the first radiator 111 is greater than the length of the second radiator 121, which means , the sum of the lengths of the plurality of sub-radiators in the first radiator 111 is greater than the sum of the lengths of the plurality of sub-radiators in the second radiator 121 .
  • the first radiator 111 shown in FIG. 12 includes a first sub-radiator 1111, a second sub-radiator 1112, and a third sub-radiator 1113; the second radiator 121 includes a fourth sub-radiator 1211 and the fifth sub-radiator 1212 are used for illustration.
  • the length of the first radiator 111 is marked as L1
  • the length of the second radiator 121 is marked as L2
  • the length of the first sub-radiator 1111 is marked as L11
  • the length of the second sub-radiator is marked as L11.
  • the length of the body 1112 is marked as L12
  • the length of the third sub-radiator 1113 is marked as L13
  • the length of the fourth sub-radiator 1211 is marked as L21
  • the length of the fifth sub-radiator 1212 is marked as L22.
  • L1 L11+L12+L13
  • L2 L21+L22.
  • the length of the first radiator 111 is greater than the length of the second radiator 121, that is, L1>L2.
  • the length of the first radiator 111 is greater than the length of the second radiator 121 , and the frequency band of the electromagnetic wave signal sent and received by the first antenna 110 is lower than that of the electromagnetic wave signal sent and received by the second antenna 120 Therefore, the antenna assembly 10 can cover more frequency bands when working, and the communication effect of the antenna assembly 10 is improved.
  • the first radiator 111 is located on the left side of the second radiator 121 as an example for illustration.
  • the position of the first radiator 111 and the The position of the second radiator 121 may also be other positions, for example, the first radiator 111 is located on the right side of the second radiator 121 .
  • the first radiator 111 and the second radiator 121 are arranged up and down, and the first radiator 111 is located above the second radiator 121;
  • the second radiators 121 are arranged up and down, and the first radiators 111 are located below the second radiators 121 .
  • the first radiator 111 and the second radiator 121 can be flexible components according to the environment in which the antenna assembly 10 is applied.
  • the first radiator 111 When the first radiator 111 is located on the right side of the second radiator 121, compared with the fact that the first radiator 111 is located on the left side of the second radiator 121, it is equivalent to the second radiator 121.
  • the length of a radiator 111 and the feeding position are changed, and the operating frequency bands of the two are also exchanged.
  • the first antenna 110 is used to send and receive electromagnetic wave signals in the GPS-L1 frequency band, electromagnetic wave signals in the WIFI 2.4G frequency band, electromagnetic wave signals in the LTE MHB frequency band, and electromagnetic wave signals in the N41 frequency band (2496MHz-2690MHz).
  • GPS refers to positioning, including but not limited to Global Positioning System (Global Positioning System, GPS) positioning, Beidou positioning, GLONASS positioning, GALILEO positioning, etc.
  • WIFI 2.4G frequency band includes 2.4GHz ⁇ 2.5GHz;
  • LTE MHB frequency band refers to Middle High Band, and its frequency band range is: 1000MHz ⁇ 3000MHz.
  • the frequency selection parameters of the first frequency selection filter circuit 113 including resistance value, inductance value and capacitance value
  • the frequency selection parameters of the second frequency selection filter circuit 123 including resistance value, inductance value and capacitance value
  • the first antenna 110 can send and receive electromagnetic wave signals in the GPS-L1 frequency band, electromagnetic wave signals in the WIFI 2.4G frequency band, electromagnetic wave signals in the LTE MHB frequency band, and electromagnetic wave signals in the N41 frequency band. 110 can support more frequency bands.
  • the first antenna 110 transmits and receives electromagnetic wave signals in the GPS-L1 frequency band, electromagnetic wave signals in the WIFI 2.4G frequency band, electromagnetic wave signals in the LTE MHB frequency band, and electromagnetic wave signals in the N41 frequency band
  • the first antenna 110 It can send and receive electromagnetic wave signals in the GPS-L1 frequency band, electromagnetic wave signals in the WIFI 2.4G frequency band, electromagnetic wave signals in the LTE MHB frequency band, and electromagnetic wave signals in the N41 frequency band at the same time.
  • the size d of the gap between the first radiator 111 and the second radiator 121 is: 0.5mm ⁇ d ⁇ 2.0mm. Please refer to FIG. 1 for details, in which the dimension d is illustrated.
  • the gap size d between the first radiator 111 and the second radiator 121 is selected to be within the above range, so as to ensure a good coupling effect between the first radiator 111 and the second radiator 121 . Further optionally, 0.5mm ⁇ d ⁇ 1.5mm, so that the coupling between the first radiator 111 and the second radiator 121 is higher and better.
  • the first antenna 110 is used to send and receive electromagnetic wave signals in the GPS-L1 frequency band, electromagnetic wave signals in the WIFI 2.4G frequency band, electromagnetic wave signals in the LTE MHB frequency band, and electromagnetic wave signals in the N41 frequency band;
  • the second antenna 120 is used for sending and receiving WIFI 5G.
  • the frequency band and electromagnetic waves of the N78 band, N77 band, and N79 band are described as examples.
  • FIG. 14 is a schematic diagram of RL curves of the first antenna and the second antenna in the antenna assembly in one embodiment.
  • the so-called RL curve refers to the return loss curve, which is called Return Loss in English, or RL for short.
  • the abscissa is frequency, and the unit is MHz; the ordinate is RL, and the unit is dB.
  • the curve 1 ie, the solid line curve in the figure
  • the curve 2 ie, the broken line curve in the figure
  • the first antenna 110 has three modes: a first resonance mode a, a second resonance mode b, and a third resonance mode c, and the working frequency band of the first antenna 110 covers 1500MHz to 3000MHz; that is, supports GPS - Electromagnetic wave signal in L1 frequency band, electromagnetic wave signal in LTE MHB frequency band, electromagnetic wave signal in WIFI 2.4G frequency band, and electromagnetic wave signal in N41 frequency band.
  • mode a supports GPS-L1 frequency band
  • mode b supports LTE MHB frequency band
  • mode c supports WIFI 2.4G frequency band and N41 frequency band.
  • the second antenna 120 has three modes: the fourth resonance mode d, the fifth resonance mode e, and the sixth resonance mode f, and the working frequency band of the second antenna 120 covers 3300MHz ⁇ 6000MHz; that is, it supports electromagnetic waves in the N78 frequency band Signals, electromagnetic wave signals in the N77 frequency band, electromagnetic wave signals in the N79 frequency band, and electromagnetic wave signals in the WiFi 5G frequency band.
  • mode d supports N78 frequency band
  • mode e supports N77 frequency band and N79 frequency band
  • mode f supports WIFI 5G frequency band.
  • Mode d results from capacitively coupled feeds. As can be seen from FIG.
  • modes a to f all have high efficiency bandwidths, and the positions of the feeding points of the first radiator 111 of the first antenna 110 are different, which may cause the different modes to appear in different sequences.
  • the feeding point of the first radiator 111 in the first antenna 110 is at the position shown above, the RL curve of the first antenna 110 is shown in FIG. 14 .
  • mode c appears before mode b, and the frequency bands supported by mode c and mode b will also change, for example, Mode b supports WIFI 2.4G frequency band and N41 frequency band, and mode c supports LTE MHB frequency band.
  • the antenna assembly 10 can cover the Sub 6G frequency band, the MHB frequency band and the UHB frequency band. Since the size of the antenna assembly 10 is small, the space utilization of the electronic device 1 to which the antenna assembly 10 is applied can be improved. Rate.
  • FIG. 15 is a schematic diagram of the main current distribution corresponding to mode a
  • FIG. 16 is a schematic diagram of the main current distribution corresponding to mode b
  • FIG. 17 is a schematic diagram of the main current distribution corresponding to mode c
  • 18 is the main current distribution corresponding to mode d
  • Figure 19 is the main current distribution corresponding to mode e
  • Figure 20 is the main current distribution corresponding to mode f.
  • the first feeding point P1 on the first radiator 111 is adjacent to the center of the first radiator 111
  • the second feeding point P2 on the second radiator 121 is disposed adjacent to the gap between the second radiator 121 and the first radiator 111 .
  • the current on the first radiator 111 flows through the first ground terminal G1 sequentially through the first The feeding point P1 and the free end F1.
  • the current on the first radiator 111 flows from the first feeding point P1 to the second in turn The connection point between the sub-radiator 1112 and the third sub-radiator 1113 and the first free end F1.
  • the current on the first radiator 111 includes a first sub-current Ix and a second sub-current Iy
  • the first sub-current Ix flows to the first feeding point P1 via the first ground terminal G1
  • the second sub-current Iy flows to the first feeding point P1 via the first free terminal F1.
  • the current on the second radiator 121 flows from the second free end F2 to the second ground end F2, and also flows from the second feeding point P2 to the second ground terminal G2.
  • the current on the second radiator 121 flows to the second free end G2 through the second feeding point P2 .
  • Figures 15-20 are the main current distributions corresponding to each mode, and do not represent all the current distributions in each mode. Due to the coupling effect between the first radiator 111 and the second radiator 121, there will also be current coupled from the third sub-radiator 1113 to the fourth sub-radiator 1211 in the second radiator 121, and through the fourth sub-radiator 1211 The radiator 1211 and the fifth sub-radiator 1212 go to ground.
  • the second radiator 121 also has current distribution, but in mode b and mode c, the main current is distributed on the first radiator 111, not in the first radiator 111. On the second radiator 121, therefore, the current distribution on the second radiator 121 is not illustrated.
  • the main current is distributed on the second radiator 121 , and at the same time, due to the coupling effect between the first radiator 111 and the second radiator 121 , the first radiation There is also a current distribution on the body 111 .
  • FIG. 21 is a three-dimensional structural view of an electronic device according to an embodiment of the present application; and FIG. 22 is a cross-sectional view of the line I-I in FIG. 21 according to an embodiment.
  • the electronic device 1 includes the antenna assembly 10 described in any of the foregoing embodiments.
  • FIG. 23 is a top view of a metal frame according to an embodiment of the application
  • FIG. 24 is a top view of a metal frame according to another embodiment of the application.
  • the electronic device 1 further includes a metal frame 20 .
  • the metal frame 20 includes a frame body 210 , a first metal segment 220 , and a second metal segment 230 .
  • the first metal segment 220 and the second metal segment 230 are spaced apart. There are gaps between the first metal segment 220 and the second metal segment 230 and the frame body 210 respectively.
  • the first radiator 111 includes the first metal segment 220
  • the second radiator 121 includes the second metal segment 230 .
  • the corners of the first metal segment 220 and the second metal segment 230 corresponding to the frame body 210 are used as examples for illustration; in FIG. 24 , the first metal segment 220 and all the The second metal segment 230 corresponds to the edge of the frame body 210 as an example for illustration.
  • the frame body 210 can constitute the ground pole, and the end of the first metal section 220 facing away from the second metal section 230 and the frame body 210 The end of the second metal segment 230 away from the second metal segment 230 is connected to the frame body 210 so that the second metal segment 230 is grounded.
  • the metal frame 20 includes a frame 240 , the frame 240 is bent and connected to the periphery of the frame body 210 , the first metal segment 220 and the second metal segment 230 are formed on on the frame 240 .
  • the metal frame body 20 is the middle frame 30 of the electronic device 1 .
  • the material of the middle frame 30 is metal, such as aluminum-magnesium alloy.
  • the middle frame 30 generally constitutes the ground of the electronic device 1. When the electronic device in the electronic device 1 needs to be grounded, the middle frame 30 can be connected to the ground.
  • the ground system in the electronic device 1 includes, in addition to the middle frame 30 , the ground on the circuit board 50 and the ground in the screen 40 .
  • the electronic device 1 further includes a screen 40 , a circuit board 50 and a battery cover 60 .
  • the screen 40 may be a display screen with display function, or may be a screen 40 integrated with display and touch functions.
  • the screen 40 is used to display text, images, videos and other information.
  • the screen 40 is carried on the middle frame 30 and is located on one side of the middle frame 30 .
  • the circuit board 50 is usually also carried on the middle frame 30 , and the circuit board 50 and the screen 40 are carried on opposite sides of the middle frame 30 .
  • At least one or more of the first signal source 112, the second signal source 122, the first frequency selection filter circuit 113, and the second frequency selection filter circuit 123 in the antenna assembly 10 described above can be provided on the circuit board 50 on.
  • the battery cover 60 is disposed on the side of the circuit board 50 away from the middle frame 30 .
  • the battery cover 60 , the middle frame 30 , the circuit board 50 , and the screen 40 cooperate with each other to assemble a complete unit.
  • electronic equipment 1 Understandably, the description of the structure of the electronic device 1 is only a description of a form of the structure of the electronic device 1 , and should not be construed as a limitation on the electronic device 1 or as a limitation on the antenna assembly 10 .
  • the metal frame 20 is also called the middle frame 30 , and only one metal frame 20 is disposed inside the electronic device 1 .
  • the first radiator 111 is an FPC antenna radiator or an LDS antenna radiator, or a PDS antenna radiator, or a metal branch;
  • the second radiator 121 is an FPC antenna radiator or It is an LDS antenna radiator, or a PDS antenna radiator, or a metal branch.
  • the first radiator 111 may be disposed on the edge of the middle frame 30 and electrically connected to the middle frame 30 . It can be understood that, in other embodiments, the first radiator 111 and the second radiator 121 may also be arranged at other positions, and are electrically connected to the ground system in the electronic device 1 .
  • the ground system in the electronic device 1 includes a middle frame 30, a screen 40, and a circuit board 50.
  • the first radiator 111 and the second radiator 121 are electrically connected to the ground system of the electronic device 1, including the The first radiator 111 and the second radiator 121 are electrically connected to any one or more of the middle frame 30 , the screen 40 , and the circuit board 50 .
  • the first radiator 111 and the second radiator 121 are antenna radiators of the same type, and are disposed on the same substrate.
  • the first radiator 111 and the second radiator 121 are of the same type and are disposed on the same substrate, so as to facilitate the preparation of the first radiator 111 and the second radiator 121 and the first
  • the radiator 111 and the second radiator 121 are assembled with other components in the electronic device 1 .
  • the electronic device 1 further includes a ground system, and the ground system includes one or more of a middle frame 30, a circuit board 50, and a display screen, and the first radiator 111 is away from the first radiator 111.
  • the first radiator 111 is an FPC antenna radiator or an LDS antenna radiator, or a PDS antenna radiator, or a metal branch
  • the second radiator 121 is an FPC antenna radiator or
  • the LDS antenna radiator is either a PDS antenna radiator or a metal branch, but when the first radiator 111 and the second radiator 121 are not directly formed on the middle frame 30, they need to be electrically connected to the electronic device 1 in the ground system.
  • the first radiator 111 When the first radiator 111 is electrically connected to the ground of the middle frame 30, the first radiator 111 can be connected to the ground of the middle frame 30 through a connecting rib, or the first radiator 111 can be electrically connected to the ground through a conductive elastic sheet. Box 30 ground.
  • the second radiator 121 when the second radiator 121 is electrically connected to the ground of the middle frame 30, the second radiator 121 can be connected to the ground of the middle frame 30 through connecting ribs, or the second radiator 121 can be connected to the ground of the middle frame 30 through a conductive elastic sheet Electrically connect the ground of the middle frame 30 .
  • FIG. 25 is a schematic diagram of the positions of the first radiator and the second radiator in the electronic device in one embodiment.
  • the electronic device 1 includes a top 1a and a bottom 1b, and the first radiator 111 and the second radiator 121 are both disposed on the top 1a.
  • top 1a refers to the upper part of the electronic device 1 when in use
  • bottom 1b is the lower part of the electronic device 1 opposite to the top 1a.
  • the top 1a includes three cases: the first radiator 111 and the second radiator 121 are disposed in the upper left corner of the electronic device 1; or, the first radiator 111 and the second radiator The body 121 is arranged on the top side of the electronic device 1 ; or the first radiator 111 and the second radiator 121 are arranged on the upper right corner of the electronic device 1 .
  • the first radiator 111 and the second radiator 121 are disposed at the upper left corner of the electronic device 1, the following situations are included: the first radiator 111 is located on the left side, and the first radiator 111 is located on the left side. The other part of a radiator 111 is located on the top side, and the second radiator 121 is located on the top side; or, a part of the second radiator 121 is located on the top side, and the other part of the second radiator 121 is located on the top side is located on the left, and the first radiator 111 is located on the left.
  • the first radiator 111 and the second radiator 121 are disposed at the upper right corner of the electronic device 1, it includes the following situations: the first radiator 111 is partially located on the top side, the first The other part of the radiator 111 is located on the right side, and the second radiator 121 is located on the right side; or, the second radiator 121 part is located on the right side, the second radiator 121 The first radiator 111 is partially located at the top edge.
  • the top 1a of the electronic device 1 is usually away from the ground, and the bottom 1b of the electronic device 1 is usually close to the ground.
  • the first radiator 111 and the second radiator 121 are disposed on the top 1a, the radiation efficiency of the upper hemisphere of the first antenna 110 and the second antenna 120 is better, so that the first antenna 110 and the second antenna 120 have better radiation efficiency in the upper hemisphere.
  • the second antenna 120 has better communication efficiency.
  • the first radiator 111 and the second radiator 121 may also be disposed corresponding to the bottom 1 b of the electronic device 1 , although the first radiator 111 and the second radiator 121
  • the radiation efficiency of the upper hemisphere of the first antenna 110 and the second antenna 120 is not so good, but as long as the radiation efficiency of the upper hemisphere is greater than or equal to the preset efficiency, the radiation efficiency of the upper hemisphere can be relatively good. communication effect.
  • FIG. 26 is a schematic diagram of the positions of the first radiator and the second radiator in the electronic device in another embodiment.
  • the electronic device 1 in this embodiment includes a first side 11 , a second side 12 , a third side 13 , and a fourth side 14 that are connected end to end in sequence.
  • the first side 11 and the third side 13 are short sides of the electronic device 1
  • the second side 12 and the fourth side 14 are long sides of the electronic device 1 .
  • the first side 11 is opposite to the third side 13 and is spaced apart
  • the second side 12 is opposite to the fourth side 14 and is spaced apart
  • the second side 12 and the first side 11 are respectively
  • the third side 13 is connected by bending
  • the fourth side 14 is connected with the first side 11 and the third side 13 respectively by bending.
  • the connection between the fourth side 14 and the first side 11 both forms a corner of the electronic device 1 .
  • the first radiator 111 and the second radiator 121 can be arranged corresponding to any corner of the electronic device 1 .
  • the first radiator 111 and the second radiator 121 are both Corresponding to the same corner setting of the electronic device 1 .
  • the efficiency of the first antenna 110 and the second antenna 120 is high.
  • the first side 11 and the third pass are short sides of the electronic device 1
  • the second side 12 and the fourth side 14 are electronic devices
  • the long side of 1 is taken as an example for illustration. In other embodiments, the lengths of the first side 11 , the second side 12 , the third side 13 , and the fourth side 14 are equal.

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Abstract

本申请提供一种天线组件及电子设备。天线组件包括第一及第二天线，第一天线包括第一辐射体、第一信号源及第一选频滤波电路，第二天线包括第二辐射体、第二信号源、及第二选频滤波电路，第一、第二辐射体间隔设置且相互耦合，第一信号源电连接第一选频滤波电路至第一辐射体，第二信号源电连接第二选频滤波电路至第二辐射体，第一天线用于产生至少一个谐振模式，所述第二天线用于产生至少两个谐振模式，所述第二天线的至少两个谐振模式用于覆盖第一频段、第二频段及第三频段的电磁波信号的收发，所述第二天线的至少一个谐振模式由所述第一天线与所述第二天线之间的容性耦合馈电激励产生。本申请的天线组件具有较好的通信效果。

Description

天线组件和电子设备 技术领域
本申请涉及通信技术领域，尤其涉及一种天线组件和电子设备。
背景技术
随着技术的发展，手机等具有通信功能电子设备的普及度越来越高，且功能越来越强大。电子设备中通常包括天线组件以实现电子设备的通信功能。然而，相关技术中的电子设备中的天线组件的通信性能不够好，还有待提升的空间。
发明内容
第一方面，本申请提供一种天线组件。所述天线组件包括：
第一天线及第二天线，所述第一天线包括第一辐射体、第一信号源、及第一选频滤波电路，所述第二天线包括第二辐射体、第二信号源、及第二选频滤波电路；
所述第一辐射体与所述第二辐射体间隔设置且相互耦合，所述第一辐射体背离所述第二辐射体的一端接地，所述第一信号源电连接所述第一选频滤波电路至第一辐射体，所述第二辐射体背离所述第一辐射体的一端接地，所述第二信号源电连接所述第二选频滤波电路至所述第二辐射体；
所述第一天线用于产生至少一个谐振模式，所述第二天线用于产生至少两个谐振模式，所述第二天线的至少两个谐振模式用于覆盖第一频段、第二频段及第三频段的电磁波信号的收发，所述第二天线的至少一个谐振模式由所述第一天线与所述第二天线之间的容性耦合馈电激励产生。
第二方面，本申请还提供一种电子设备，所述电子设备包括如第一方面所述的天线组件。
本申请提供的天线组件中第二天线不但可收发第一频段的电磁波信号，且还可收发第二频段的电磁波信号以及第三频段的电磁波信号中的至少一种，因此，所述天线组件具有较好的通信效果。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请一些实施方式，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他的附图。
图1为本申请一实施方式提供的天线组件的示意图。
图2为图1中一实施方式提供的天线组件的示意图。
图3-图10分别为各个实施方式提供的子选频滤波电路的示意图。
图11为本申请另一实施方式提供的天线组件的示意图。
图12为本申请又一实施方式提供的天线组件的示意图。
图13为本申请再一实施方式提供的天线组件的示意图。
图14为一实施方式中天线组件中第一天线及第二天线的RL曲线示意图。
图15为模态a对应的主要电流分布示意图。
图16为模态b对应的主要电流分布示意图。
图17为模态c对应的主要电流分布示意图。
图18为模态d对应的主要电流分布。
图19为模态e对应的主要电流分布。
图20为模态f对应的主要电流分布。
图21为本申请一实施方式提供的电子设备的立体结构图。
图22为一实施方式提供的图21中I-I线的剖视图。
图23为本申请一实施方式中金属框体的俯视图。
图24为本申请另一实施方式中金属框体的俯视图。
图25为一实施方式中第一辐射体及第二辐射体在电子设备的位置示意图。
图26为另一实施方式中第一辐射体及第二辐射体在电子设备的位置示意图。
具体实施方式
本申请实施例第一方式提供一种天线组件，所述天线组件包括：
第一天线及第二天线，所述第一天线包括第一辐射体、第一信号源、及第一选频滤波电路，所述第二天线包括第二辐射体、第二信号源、及第二选频滤波电路；
所述第一辐射体与所述第二辐射体间隔设置且相互耦合，所述第一辐射体背离所述第二辐射体的一端接地，所述第一信号源电连接所述第一选频滤波电路至第一辐射体，所述第二辐射体背离所述第一辐射体的一端接地，所述第二信号源电连接所述第二选频滤波电路至所述第二辐射体；
所述第一天线用于产生至少一个谐振模式，所述第二天线用于产生至少两个谐振模式，所述第二天线的至少两个谐振模式用于覆盖第一频段、第二频段及第三频段的电磁波信号的收发，所述第二天线的至少一个谐振模式由所述第一天线与所述第二天线之间的容性耦合馈电激励产生。
其中，所述第一天线具有第一谐振模式、第二谐振模式、及第三谐振模式，所述第二天线具有第四谐振模式、第五谐振模式、及第六谐振模式，所述第一谐振模式、所述第二谐振模式、所述第三谐振模式、所述第四谐振模式、所述第五谐振模式、及所述第六谐振模式共同覆盖MHB和UHB频段的电磁波信号的收发。
其中，所述第一选频滤波电路及所述第二选频滤波电路用于根据预设的第一选频参数调节第一天线的谐振频率，以使得所述第一天线谐振于所述第一谐振模式、所述第二谐振模式及所述第三谐振模式，其中，在所述第一谐振模式下，所述第一天线用于收发第四频段的电磁波信号；在所述第二谐振模式下，所述第一天线用于收发第五频段的电磁波信号；在所述第三谐振模式下，所述第一天线用于收发第六频段及第七频段的电磁波信号。
其中，所述第一辐射体包括第一子辐射体、第二子辐射体、及第三子辐射体，所述第一子辐射体、所述第二子辐射体、及所述第三子辐射体依次弯折相连，且所述第一子辐射体与所述第三子辐射体均位于所述第二子辐射体的同侧，所述第一子辐射体具有背离所述第二子辐射体第一接地端，所述第一接地端接地，所述第二子辐射体具有第一馈电点，所述第一馈电点电连接所述第一选频滤波电路，所述第三子辐射体具有背离所述第二子辐射体的第一自由端，所述第一自由端邻近所述第二辐射体设置。
其中，当所述第一天线谐振于第一谐振模式时，所述第一辐射体上的电流由所述第一接地端依次流经所述第一馈电点及所述第一自由端；
当所述第一天线谐振于第二谐振模式时，所述第一辐射体上的电流由所述第一馈电点依次流向所述第二子辐射体与所述第三子辐射体的连接点及所述第一自由端；
当所述第一天线谐振于第三谐振模式时，所述第一辐射体上的电流包括第一子电流及第二子电流，所述第一子电流经由所述第一接地端流向所述第一馈电点，所述第二子电流经由所述第一自由端流向所述第一馈电点。
其中，所述第四频段包括GPS-L1频段，所述第五频段包括LTE MHB频段，所述第六频段包括WIFI 2.4G频段，所述第七频段包括N41频段。
其中，所述第一选频电路及所述第二选频电路用于根据预设的第二选频参数调节所述第二天线的谐振频率，以使得所述第二天线谐振于所述第四谐振模式、所述第五谐振模式、及所述第六谐振模式，其中，在所述第四谐振模式下，所述第二天线用于收发第一频段的电磁波信号；在所述第五谐振模式下，所述第二天线用于收发第二频段及第三频段的电磁波信号；在第六谐振模式下，所述第二天线用于收发 第八频段的电磁波信号。
其中，所述第二辐射体包括第四子辐射体、及第五子辐射体，所述第四子辐射体与所述第五子辐射体弯折相连，所述第四子辐射体具有背离所述第五子辐射体的第二自由端，所述第二自由端与所述第一辐射体间隔设置，所述第五子辐射体具有第二馈电点，所述第二馈电点电连接所述第二选频滤波电路，所述第五子辐射体具有背离所述第四子辐射体的第二接地端，所述第二接地端接地。
其中，当所述第二天线谐振于所述第四谐振模式时，所述第二辐射体上的电流由所述第二自由端流向所述流向所述第二接地端，且还由所述第二馈电点流向所述第二接地端；
当所述第二天线谐振于所述第五谐振模式时，所述第二辐射体上的电流经由所述第二接地端流向所述第二自由端；
当所述第二天线谐振于所述第六谐振模式时，所述第二辐射体上的电流经由所述第二馈电点流向所述第二自由端。
其中，所述第一频段包括N78频段，所述第二频段包括N77频段，所述第三频段包括N79频段，所述第八频段包括WIFI 5G频段。
其中，所述第一辐射体包括第一子辐射体及第二子辐射体，所述第一子辐射体与所述第二子辐射体弯折相连，所述第一子辐射体具有背离所述第二子辐射体的第一接地端，所述第一接地端接地，所述第二子辐射体具有背离所述第一子辐射体的第一自由端，所述第一自由端邻近所述第二辐射体设置，所述第二子辐射体具有第一馈电点以电连接所述第一选频滤波电路；所述第二辐射体包括第三子辐射体及第四子辐射体，所述第三子辐射体与所述第四子辐射体弯折相连，所述第三子辐射体具有背离所述第四子辐射体的第二自由端，所述第二自由端与所述第一自由端间隔设置，所述第三子辐射体具有第二馈电点以电连接所述第二选频滤波电路，所述第四子辐射体具有背离所述第三子辐射体的第二接地端，所述第二接地端接地。
其中，所述第一辐射体与所述第二辐射体之间的间隙的尺寸d为：0.5mm≤d≤1.5mm。
其中，所述第一选频滤波电路包括一个或多个子选频滤波电路，所述第二选频滤波电路包括一个或多个子选频滤波电路，所述子选频滤波电路还用于隔离第一天线及第二天线。
其中，所述子选频滤波电路包括以下一种或多种电路：
电感与电容串联形成的带通电路；
电感与电容并联形成的带阻电路；
电感、第一电容、及第二电容，所述电感与所述第一电容并联，且所述第二电容电连接所述电感与所述第一电容电连接的节点；
电容、第一电感、及第二电感，所述电容与所述第一电感并联，且所述第二电感电连接所述电容与所述第一电感电连接的节点；
电感、第一电容、及第二电容，所述电感与所述第一电容串联，且所述第二电容的一端电连接所述电感未连接所述第一电容的第一端，所述第二电容的另一端电连接所述第一电容未连接所述电感的一端；
电容、第一电感、及第二电感，所述电容与所述第一电感串联，所述第二电感的一端电连接所述电容未连接第一电感的一端，所述第二电感的另一端电连接所述第一电感未连接所述电容的一端；
第一电容、第二电容、第一电感、及第二电感，所述第一电容与所述第一电感并联，所述第二电容与所述第二电感并联，且所述第二电容与所述第二电感并联形成的整体的一端电连接所述第一电容与所述第一电感并联形成的整体的一端；
第一电容、第二电容、第一电感、及第二电感，所述第一电容与所述第一电感串联形成第一单元，所述第二电容与所述第二电感串联形成第二单元，且所述第一单元与所述第二单元并联。
其中，所述第二信号源产生的激励信号经由第二选频滤波电路之后，容性耦合馈电至所述第二辐射体。
第二方面，本申请实施例提供一种电子设备，所述电子设备包括如第一方面及第一方面中任意实施方式所述的天线组件。
其中，所述电子设备还包括金属框体，所述金属框体包括框体本体、第一金属段、及第二金属段，所述第一金属段与所述第二金属段之间间隔设置，所述第一金属段与所述第二金属段分别与所述框体本体之间具有缝隙，所述第一金属段背离所述第二金属段的一端与所述框体本体相连，所述第二金属段背离所述第一金属段的一端与所述框体本体相连，其中，所述第一辐射体包括所述第一金属段，所述第二辐射体包括所述第二金属段。
其中，所述金属框体包括边框，所述边框弯折连接于所述框体本体的周缘，所述第一金属段及所述第二金属段形成于所述边框上。
其中，所述电子设备还包括地系统，所述地系统包括中框、电路板、及显示屏中的一种或多种，所述第一辐射体背离所述第二辐射体的一端电连接所述地系统以接地，所述第二辐射体背离所述第一辐射体的一端电连接所述地系统以接地。
其中，电子设备包括顶部和底部，所述第一辐射体及所述第二辐射体均设置于所述顶部。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本文中提及“实施例”或“实施方式”意味着，结合实施例或实施方式描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
本申请提供了一种天线组件10。所述天线组件10可应用于电子设备1中，所述电子设备1包括但不仅限于为手机、互联网设备(mobile internet device，MID)、电子书、便携式播放站(Play Station Portable,PSP)或个人数字助理(Personal Digital Assistant，PDA)等具有通信功能的电子设备1。
请参阅图1，图1为本申请一实施方式提供的天线组件的示意图。所述天线组件10包括第一天线110及第二天线120。所述第一天线110包括第一辐射体111、第一信号源112、及第一选频滤波电路113。所述第二天线120包括第二辐射体121、第二信号源122、及第二选频滤波电路123。所述第一辐射体111与所述第二辐射体121间隔设置且相互耦合。所述第一辐射体111背离所述第二辐射体121的一端接地，所述第一信号源112电连接所述第一选频滤波电路113至第一辐射体111，所述第二辐射体121背离所述第一辐射体111的一端接地，所述第二信号源122电连接所述第二选频滤波电路123至所述第二辐射体121。所述第一天线110用于产生至少一个谐振模式，所述第二天线120用于产生至少两个谐振模式，所述第二天线120的至少两个谐振模式用于覆盖第一频段、第二频段及第三频段的电磁波信号的收发，所述第二天线120的至少一个谐振模式由所述第一天线110与所述第二天线120之间的容性耦合馈电激励产生。
此外，需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。
下面结合图14及图15-20对所述第一天线110及所述第二天线120的谐振模式进行说明。所述第一天线110具有第一谐振模式、第二谐振模式、及第三谐振模式。所述第二天线120具有第四谐振模式、第五谐振模式、及第六谐振模式。所述第一谐振模式、所述第二谐振模式、所述第三谐振模式、所述第四谐振模式、所述第五谐振模式、及所述第六谐振模式共同覆盖中高频(MHB)和超高频(UHB)频段的电磁波信号的收发。这里的谐振模式也称为谐振模式。所述MHB的频段范围在1000MHz-3000MHz，所述UHB的频段范围在3000MHz-6000MHz。
所述第一选频滤波电路113及所述第二选频滤波电路123用于根据预设的第一选频参数调节第一天线110的谐振频率，以使得所述第一天线110谐振于所述第一谐振模式、所述第二谐振模式及所述第三谐振模式，其中，在所述第一谐振模式下，所述第一天线110用于收发第四频段的电磁波信号；在所述第二谐振模式下，所述第一天线110用于收发第五频段的电磁波信号；在所述第三谐振模式下，所述第一天线110用于收发第六频段及第七频段的电磁波信号。
在一实施方式中，第一选频滤波电路113及所述第二选频滤波电路123用于根据预设的第二选频参数调节所述第二天线120的谐振频率，以使得所述第二天线120谐振于所述第四谐振模式、所述第五谐振模式、及所述第六谐振模式，其中，在所述第四谐振模式下，所述第二天线120用于收发第一频段的电磁波信号；在所述第五谐振模式下，所述第二天线120用于收发第二频段及第三频段的电磁波信号；在第六谐振模式下，所述第二天线120用于收发第八频段的电磁波信号。
在本实施方式中，所述第一频段包括N78频段(3.3GHz～3.8GHz)，所述第二频段包括N77频段(3.3GHz～4.2GHz)，所述第三频段包括N79频段(4.4GHz～5.0GHz)，所述第八频段包括WIFI 5G频段(5.725GHz～5.825GHz)。所述第四频段包括GPS-L1频段，所述第五频段包括LTE MHB频段，所述第六频段包括WIFI 2.4G频段，所述第七频段包括N41频段(2496MHz-2690MHz)。
所述第一辐射体111为柔性电路板(Flexible Printed Circuit，FPC)天线辐射体或者为激光直接成型(Laser Direct Structuring，LDS)天线辐射体、或者为印刷直接成型(Print Direct Structuring，PDS)天线辐射体、或者为金属枝节；所述第二辐射体121为FPC天线辐射体或者为LDS天线辐射体、或者为PDS天线辐射体、或者为金属枝节。
当所述第一信号源112直接电连接所述第一辐射体111，且所述第二信号源122直接电连接所述第二辐射体121时，所述第二天线120能够收发第一频段的电磁波信号但是无法收发第二频段及第三频段的电磁波信号。当增加了第一选频滤波电路113及第二选频滤波电路123之后，所述第一信号源112电连接所述第一选频滤波电路113至所述第一辐射体111，且所述第二信号源122电连接所述第二选频滤波电路123至所述第二辐射体121时，通过设置第一选频滤波电路113的选频参数(包括电阻值、电感值及电容值)，以及第二选频滤波电路123的选频参数(包括电阻值、电感值及电容值)，从而可使得所述第二天线120可以收发第一频段的电磁波信号，并且可以收发第二频段及第三频段中至少一种频段的电磁波信号。所述第一选频滤波电路113及所述第二选频滤波电路123的具体电路形式稍后介绍。所述第一选频滤波电路113及所述第二选频滤波电路123也可称为匹配电路。
前面所讲到的所述第一信号源112电连接所述第一选频滤波电路113至所述第一辐射体111是指，所述第一信号源112电连接所述第一选频滤波电路113的输入端，所述第一选频滤波电路113的输出端电连接至所述第一辐射体111。所述第二信号源122电连接所述第二选频滤波电路123至所述第二辐射体121是指，第二信号源122电连接所述第二选频滤波电路123的输入端，所述第二选频滤波电路123的输出端电连接至所述第二辐射体121。
所述第一信号源112用于产生第一激励信号，所述第一激励信号经由所述第一选频滤波电路113加载在所述第一辐射体111上，以使得所述第一辐射体111辐射电磁波信号。所述第二信号源122用于产生第二激励信号，所述第二激励信号经由所述第二选频滤波电路123加载在所述第二辐射体121上，以使得所述第二辐射体121辐射电磁波信号。所述第一辐射体111及所述第二辐射体121间隔设置且相互耦合，也即，所述第一辐射体111及所述第二辐射体121共口径，当所述天线组件10工作时，所述第二信号源122产生的第二激励信号可经由所述第二辐射体121耦合到所述第一辐射体111上，换而言之，所述第二天线120工作时不但可以利用所述第二辐射体121并且可以利用第一天线110中的第一辐射体111来收发电磁波信号，从而使得所述第二天线120可以工作在较宽的频段。同样地，所述第一辐射体111及所述第二辐射体121间隔设置且相互耦合，当所述天线组件10工作时，所述第一信号源112产生的第一激励信号也可经由所述第一辐射体111耦合到第二辐射体121上，换而言之，所述第一天线110工作时不但可以利用所述第一辐射体111并且还可以利用第二天线120中的第二辐射体121来收发电磁波信号，从而使得第一天线110可工作在较宽的频段。由于第一天线110工作时不但可利用第一辐射体111并且可利用第二辐射体121，第二天线120工作时不但可利用第二辐射体121还可利用第一辐射体111，由此可实现了辐射体的复用，也实现了空间的复用，有利于减小所述天线组件10的尺寸。
相关技术中，所述第二天线120仅仅能够收发第一频段的电磁波信号，而不支持第二频段或者第三频段的电磁波信号，若需要支持第二频段的电磁波信号时，则需要额外设置一个天线以支持第二频段的电磁波信号；若需要支持第三频段的电磁波信号，则需要额外设置一个天线一支持第三频段的电磁波信号，由此可见，相关技术中需要较多的天线才能支持到第一频段、第二频段、及第三频段的电磁波信号， 从而导致天线组件10的体积较大。本实施方式中的天线组件10中无需额外设置天线来支持第二频段的电磁波信号以及第三频段的电磁波信号，因此，所述天线组件10的体积较小。设置额外的天线支持第二频段的电磁波信号以及设置额外的天线支持第三频段的电磁波信号还可导致天线组件10的成本较高；当天线组件10应用于电子设备1中时增加了天线组件10与其他器件的堆叠难度。本实施方式中天线组件不需要额外设置天线来支持第二频段的电磁波信号以及第三频段的电磁波信号，因此，所述天线组件10的成本较低；当天线模组应用于电子设备1中堆叠难度较低。此外，设置额外的天线支持第二频段的电磁波信号以及设置额外的天线支持第三频段的电磁波信号还可导致天线组件10的射频链路插损增加。本申请中所述第二天线120能够收发第一频段的电磁波信号、以及第二频段的电磁波信号及第三频段的电磁波信号中至少一个频段的电磁波信号时，可减少射频链路插损。
当所述天线组件10应用于电子设备1(参见图21、22)中时，所述第一信号源112可设置在所述电子设备1中的电路板50(参见图21、22)上。所述第二信号源122也可设置在所述电子设备1中的电路板50上。所述第一选频滤波电路113可设置在所述电子设备1中的电路板50上。所述第二选频滤波电路123可设置在所述电子设备1中的电路板50上。
在本实施方式中，所述第一选频滤波电路113及所述第二选频滤波电路123的设置可帮助所述第二天线120在原本收发第一频段的电磁波信号的基础上，还可收发第二频段的电磁波信号及第三频段的电磁波信号。进一步地，所述第一选频滤波电路113及所述第二选频滤波电路123还用于隔离所述第一天线110及所述第二天线120。换而言之，所述第一选频滤波电路113及所述第二选频滤波电路123还可隔离所述第一天线110收发的电磁波信号及所述第二天线120收发的电磁波信号互不干扰。
请一并参阅图2，图2为图1中一实施方式提供的天线组件的示意图。在本实施方式中，所述第一选频滤波电路113包括一个或多个子选频滤波电路113a，所述第二选频滤波电路123包括一个或多个子选频滤波电路113a，所述子选频滤波电路113a还用于隔离第一天线110及第二天线120。在本实施方式的示意图中，以所述第一选频滤波电路113包括2个并联的子选频滤波电路113a，以所述第二选频滤波电路123包括2个串联的子选频滤波电路113a为例进行示意。所述第一选频滤波电路113中各个子选频滤波电路113a以及所述第二选频滤波电路123中各个子选频滤波电路113a可隔离所述第一天线110及所述第二天线120。换而言之，所述第一选频滤波电路113中各个子选频滤波电路113a以及所述第二选频滤波电路123中各个子选频滤波电路113a可使得所述第一天线110收发的电磁波信号及所述第二天线120收发的电磁波信号互不干扰。需要说明的是，所述第一选频滤波电路113中的子选频滤波电路113a可以和所述第二选频滤波电路123中的子选频滤波电路113a相同，也可以不同。当所述第一选频滤波电路113包括多个子选频滤波电路113a时，所述多个子选频滤波电路113a可以之间的关系可以为串联，并联等。当所述第二选频滤波电路123包括多个子选频滤波电路113a时，所述多个子选频滤波电路113a可以之间的关系可以为串联，并联等。各个子选频滤波电路113a详细介绍如下。
请一并参阅图3至图10，图3-图10分别为各个实施方式提供的子选频滤波电路的示意图。所述子选频滤波电路113a包括以下一种或多种电路。
请一并参阅图3，在图3中，所述子选频滤波电路113a包括电感L0与所述电容C0串联形成的带通电路。
请一并参阅图4，在图4中，所述子选频滤波电路113a包括电感L0与电容C0并联形成的带阻电路。
请参阅图5，在图5中，所述子选频滤波电路113a包括电感L0、第一电容C1、及第二电容C2。所述电感L0与所述第一电容C1并联，且所述第二电容C2电连接所述电感L0与所述第一电容C1电连接的节点。
请一并参阅图6，在图6中，所述子选频滤波电路113a包括电容C0、第一电感L1、及第二电感L2。所述电容C0与所述第一电感L1并联，且所述第二电感L2电连接所述电容C0与所述第一电感L1电连接的节点。
请一并参阅图7，在图7中，所述子选频滤波电路113a包括电感L0、第一电容C1、及第二电容C2。所述电感L0与所述第一电容C1串联，且所述第二电容C2的一端电连接所述电感L0未连接所述 第一电容C1的第一端，所述第二电容C2的另一端电连接所述第一电容C1未连接所述电感L0的一端。
请一并参阅图8，在图8中，所述子选频滤波电路113a包括电容C0、第一电感L1、及第二电感L2。所述电容C0与所述第一电感L1串联，所述第二电感L2的一端电连接所述电容C0未连接第一电感L1的一端，所述第二电感L2的另一端电连接所述第一电感L1未连接所述电容C0的一端。
请一并参阅图9，在图9中，所述子选频滤波电路113a包括第一电容C1、第二电容C2、第一电感L1、及第二电感L2。所述第一电容C1与所述第一电感L1并联，所述第二电容C2与所述第二电感L2并联，且所述第二电容C2与所述第二电感L2并联形成的整体的一端电连接所述第一电容C1与所述第一电感L1并联形成的整体的一端。
请一并参阅图10，在图10中，所述子选频滤波电路113a包括第一电容C1、第二电容C2、第一电感L1、及第二电感L2，所述第一电容C1与所述第一电感L1串联形成第一单元113b，所述第二电容C2与所述第二电感L2串联形成第二单元113c，且所述第一单元113b与所述第二单元113c并联。
请参阅图11，图11为本申请另一实施方式提供的天线组件的示意图。在本实施方式中，所述第二信号源122产生的激励信号经由第二选频滤波电路123之后，容性耦合馈电至所述第二辐射体121。
在一实施方式中，所述第二选频滤波电路123的输出端电连接耦合电容C3的一端，所述耦合电容C3的一端电连接所述第二辐射体121。所述第二信号源122产生的激励信号(即，第二激励信号)经由所述第二选频滤波电路123之后，通过所述耦合电容C3馈电至所述第二辐射体121。在另一实施方式中，所述第二选频滤波电路123的输出端与所述第二辐射体121之间形成耦合电容C3，所述第二信号源122产生的激励信号(即，第二激励信号)经由所述第二选频滤波电路123之后，通过所述耦合电容C3馈电至所述第二辐射体121。
所述第二信号源122产生的激励信号经由第二选频滤波电路123之后，容性耦合馈电至所述第二辐射体121可使得所述第二天线120收发的电磁波信号具有较高的效率带宽。
可以理解地，在其他实施方式中，所述第二激励源产生的激励信号经由所述第二选频滤波电路123之后直接耦合至所述第二辐射体121。具体地，所述第二激励源电连接所述第二选频滤波电路123的输入端，所述第二选频滤波电路123的输出端直接电连接所述第二辐射体121。
请参阅图12，图12为本申请又一实施方式提供的天线组件的示意图。所述第一辐射体111包括第一子辐射体1111、第二子辐射体1112、及第三子辐射体1113。所述第一子辐射体1111、所述第二子辐射体1112、及所述第三子辐射体1113依次弯折相连，且所述第一子辐射体1111与所述第三子辐射体1113均位于所述第二子辐射体1112的同侧。所述第一子辐射体1111具有背离所述第二子辐射体1112的第一接地端G1，所述第一接地端G1接地，所述第二子辐射体1112具有第一馈电点P1，所述第一馈电点P1电连接所述第一选频滤波电路112，所述第三子辐射体1113具有背离所述第二子辐射体1112的第一自由端F1，所述第一自由端F1邻近所述第二辐射体121设置。
所述第二辐射体121包括第四子辐射体1211、及第五子辐射体1212。所述第四子辐射体1211与所述第五子辐射体1212弯折相连，且所述第四子辐射体1211具有背离所述第五子辐射体1212的第二自由端F2，所述第二自由端F2与第一辐射体111间隔设。在本实施方式中，所述第二自由端F2与所述第一辐射体111中的所述第三子辐射体1113背离所述第二子辐射体1112的一端间隔设置。所述第五子辐射体1212具有第二馈电点P2，所述第二馈电点P2电连接所述第二选频滤波电路123。所述第五子辐射体1212具有背离所述第四子辐射体1211的第二接地端G2，所述第二接地端G2接地。
所述第一辐射体111及所述第二辐射体121的此种结构设置可方便所述天线组件10对应所述电子设备1的角设置。当所述天线组件10对应所述电子设备1的角设置时，用户在使用电子设备1时，所述天线组件10较难被用户握持，从而可使得所述天线组件10所应用的电子设备1具有较为良好的通信效果。
在本实施方式中，以所述第一子辐射体1111、所述第二子辐射体1112及所述第三子辐射体1113均为长方形的长形为例进行示意，在其他实施方式中，所述第一子辐射体1111、所述第二子辐射体1112及所述第三子辐射体1113的形状也可以为其他形状。相应地，在本实施方式中，以所述第四子辐射体1211、及所述第五子辐射体1212的形状均为长方形的长形为例进行示意，在其他实施方式中，所述第 四子辐射体1211、及所述第五子辐射体1212的形状也可以为其他形状。
在本实施方式中，所述第一子辐射体1111及所述第三子辐射体1113均沿第一方向D1延伸，所述第二子辐射体1112沿第二方向D2延伸，且所述第一方向D1垂直于所述第二方向D2。在本实施方式中，所述第四子辐射体1211与所述第三子辐射体1113正对设置，且所述第四子辐射体1211沿着所述第一方向D1延伸。所述第五子辐射体1212沿着所述第二方向D2延伸。可以理解地，在其他实施方式中，所述第一方向D1与所述第二方向D2也可以不垂直，所述第一子辐射体1111也可以不与所述第三子辐射体1113平行。所述第一子辐射体1111、所述第二子辐射体1112、及所述第三子辐射体1113的形状及延伸方向可根据所述天线组件10所应用的环境做调整。相应地，在其他实施方式中，所述第四子辐射体1211与所述第五子辐射体1212的形状及延伸方向也可根据所述天线件所应用的环境做调整。
请参阅图12，所述第一选频滤波电路113电连接至所述第一馈电点P1，所述第一辐射体111的第一馈电点P1位于所述第二子辐射体1112或者第三子辐射体1113，当所述第一辐射体111上的第一馈电点P1位于不同的位置时，第一辐射体111上的电流分布不同。
请参阅图13，图13为本申请再一实施方式提供的天线组件的示意图。在本实施方式中，所述第一辐射体111包括第一子辐射体1111及第二子辐射体1112。所述第一子辐射体1111与所述第二子辐射体1112弯折相连，所述第一子辐射体1111具有背离所述第二子辐射体1112的第一接地端G1，所述第一接地端G1接地，所述第二子辐射体1112具有背离所述第一子辐射体1111的第一自由端F1，所述第一自由端F1邻近所述第二辐射体121设置。所述第二子辐射体1112具有第一馈电点P1以电连接所述第一选频滤波电路113。所述第二辐射体121包括第三子辐射体1113及第四子辐射体1211，所述第三子辐射体1113与所述第四子辐射体1211弯折相连，所述第三子辐射体1113具有背离所述第四子辐射体1211的第二自由端F2，所述第二自由端F2与所述第一自由端F1间隔设置。即，所述第二自由端F2与所述第二子辐射体1112背离所述第一子辐射体1111的一端间隔设置。所述第三子辐射体1113具有第二馈电点P2以电连接所述第二选频滤波电路123，所述第四子辐射体1211具有背离所述第三子辐射体1113的第二接地端G2，所述第二接地端G2接地。
所述第一辐射体111及所述第二辐射体121的此种结构设置可方便所述天线组件10对应所述电子设备1的边设置。当所述天线组件10对应所述电子设备1的边(比如，顶边)设置时，当用户在使用电子设备1时而握持电子设备1的侧边时，所述天线组件10较难被用户握持，从而可使得所述天线组件10所应用的电子设备1具有较好的通信效果。
在一实施方式中，所述第二天线120还用于收发WIFI 5G频段(5.725GHz～5.825GHz)的电磁波信号。具体地，设置第一选频滤波电路113的选频参数(包括电阻值、电感值及电容值)，以及第二选频滤波电路123的选频参数(包括电阻值、电感值及电容值)，从而可使得所述第二天线120可以收发第一频段的电磁波信号，并且可以收发第二频段及第三频段中至少一种频段的电磁波信号，以及还可使得第二天线120收发WIFI 5G频段的电磁波信号。需要说明的是，当所述第二天线120收发第一频段的电磁波信号，并且可以收发第二频段及第三频段中至少一种频段的电磁波信号、以及还可收发WIFI 5G频段的电磁波信号，是指所述第二天线120可在同一时刻收发第一频段的电磁波信号、收发第二频段及第三频段中至少一种频段的电磁波信号、以及收发WIFI 5G频段的电磁波信号。
结合上述各个实施方式，所述第一辐射体111的长度大于所述第二辐射体121的长度，所述第一天线110收发的电磁波信号的频段低于所述第二天线120收发的电磁波信号的频段。
当所述第一辐射体111包括多个子辐射体，所述第二辐射体121包括多个子辐射体时，所述第一辐射体111的长度大于所述第二辐射体121的长度，是指，所述第一辐射体111中所述多个子辐射体的长度之和大于所述第二辐射体121中所述多个子辐射体的长度之和。以图12中所示的所述第一辐射体111包括第一子辐射体1111、第二子辐射体1112、及第三子辐射体1113；所述第二辐射体121包括第四子辐射体1211、及第五子辐射体1212进行举例说明。为了方便描述，所述第一辐射体111的长度标记为L1，所述第二辐射体121的长度标记为L2，所述第一子辐射体1111的长度标记为L11，所述第二子辐射体1112的长度标记为L12，所述第三子辐射体1113的长度标记为L13，所述第四子辐射体1211的长度标记为L21，所述第五子辐射体1212的长度标记为L22。那么，则有L1＝L11+L12+L13；L2＝L21+L22。 所述第一辐射体111的长度大于所述第二辐射体121的长度，即，L1＞L2。在本实施方式中，所述第一辐射体111的长度大于所述第二辐射体121的长度，所述第一天线110收发的电磁波信号的频段低于所述第二天线120收发的电磁波信号的频段，从而使得所述天线组件10工作时能够覆盖较多的频段，提升所述天线组件10的通信效果。
可以理解地，在本实施方式中，以所述第一辐射体111位于所述第二辐射体121左侧为例进行示意，在其他实施方式中，所述第一辐射体111的位置和所述第二辐射体121的位置也可以为其他位置，比如，所述第一辐射体111位于所述第二辐射体121的右侧。或者，所述第一辐射体111及所述第二辐射体121上下排布，且所述第一辐射体111位于所述第二辐射体121的上方；或者，所述第一辐射体111及所述第二辐射体121上下排布，且所述第一辐射体111位于所述第二辐射体121的下方。综上所述，所述第一辐射体111及所述第二辐射体121可根据所述天线组件10所应用的环境进行灵活部件。当所述第一辐射体111位于所述第二辐射体121的右侧时，相较于所述第一辐射体111位于所述第二辐射体121的左侧而言，相当于所述第一辐射体111的长度以及馈电位置均发生了改变，且两者的工作频段也发生了交换。
具体地，设置第一选频滤波电路113的选频参数(包括电阻值、电感值及电容值)，以及第二选频滤波电路123的选频参数(包括电阻值、电感值及电容值)，所述第一天线110用于收发GPS-L1频段的电磁波信号、WIFI 2.4G频段的电磁波信号、LTE MHB频段的电磁波信号、以及N41频段(2496MHz-2690MHz)的电磁波信号。
需要说明的是，这里提到的GPS表示定位，包括但不仅限于全球定位系统(Global Positioning System，GPS)定位、北斗定位、GLONASS定位、GALILEO定位等。WIFI 2.4G频段包括2.4GHz～2.5GHz；LTE MHB频段是指中高频(Middle High Band)，其频段范围为：1000MHz～3000MHz。
具体地，设置第一选频滤波电路113的选频参数(包括电阻值、电感值及电容值)，以及第二选频滤波电路123的选频参数(包括电阻值、电感值及电容值)，从而可使得所述第一天线110可以收发GPS-L1频段的电磁波信号、WIFI 2.4G频段的电磁波信号、LTE MHB频段的电磁波信号、以及N41频段的电磁波信号，即可使得所述第一天线110能够支持较多的频段。需要说明的是，当所述第一天线110收发GPS-L1频段的电磁波信号、WIFI 2.4G频段的电磁波信号、LTE MHB频段的电磁波信号、以及N41频段的电磁波信号时，所述第一天线110可在同一时刻收发GPS-L1频段的电磁波信号、WIFI 2.4G频段的电磁波信号、LTE MHB频段的电磁波信号、以及N41频段的电磁波信号。
结合上述各个实施方式所述的天线组件10，所述第一辐射体111与所述第二辐射体121之间的间隙的尺寸d为：0.5mm≤d≤2.0mm。具体请参阅图1，在图1中示意出了所述尺寸d。所述第一辐射体111与所述第二辐射体121之间的间隙尺寸d选取为上述范围，从而可保证第一辐射体111和第二辐射体121之间有良好的耦合效果。进一步可选地，0.5mm≤d≤1.5mm，以使得所述第一辐射体111和所述第二辐射体121之间的耦合较高更好。
下面以第一天线110用于收发GPS-L1频段的电磁波信号、WIFI 2.4G频段的电磁波信号、LTE MHB频段的电磁波信号、以及N41频段的电磁波信号；所述第二天线120用于收发WIFI 5G频段以及N78频段、N77频段、及N79频段的电磁波为例进行说明。
请参阅图14，图14为一实施方式中天线组件中第一天线及第二天线的RL曲线示意图。所谓RL曲线，是指，回波损耗曲线，英文全称为Return Loss，简称RL。在图14中，横坐标为频率，单位是MHz；纵坐标为RL，单位为dB。在图14中，曲线①(即，图中实线的曲线)为第一天线110的RL曲线，曲线②(即，图中虚线的曲线)为第二天线120的RL曲线。由曲线①可见，所述第一天线110具有第一谐振模式a、第二谐振模式b、第三谐振模式c三个模态，第一天线110的工作频段覆盖1500MHz～3000MHz；即，支持GPS-L1频段的电磁波信号、LTE MHB频段的电磁波信号、WIFI 2.4G频段的电磁波信号、及N41频段的电磁波信号。其中，模态a支持GPS-L1频段，模态b支持LTE MHB频段，模态c支持WIFI 2.4G频段及N41频段。由曲线②可见，第二天线120具有第四谐振模式d、第五谐振模式e、第六谐振模式f三个模态，第二天线120的工作频段覆盖3300MHz～6000MHz；即支持N78频段的电磁波信号、N77频段的电磁波信号、N79频段的电磁波信号、以及WIIFI 5G频段的电磁 波信号。其中，模态d支持N78频段、模态e支持N77频段及N79频段、模态f支持WIFI 5G频段。模态d由容性耦合馈电产生。由图14可见，模态a～模态f均具有较高的效率带宽，第一天线110的第一辐射体111的馈电点的位置不同，可使得各个模态出现的先后顺序不同。举例而言，第一天线110中第一辐射体111的馈电点为前面所示的位置时，第一天线110的RL曲线如图14所示，当第一辐射体111的馈电位置往朝向第一辐射体111与第二辐射体121之间的间隙的方向移动，则模态c先于模态b出现，且模态c和模态b所支持的频段也会发生变化，比如，模态b支持WIFI 2.4G频段、以及N41频段，模态c支持LTE MHB频段。此外，由本示意图可见，所述天线组件10可覆盖Sub 6G频段、MHB频段以及UHB频段，由于本天线组件10的体积较小，因此可以提升所述天线组件10所应用的电子设备1的空间利用率。
为了便于理解前面提到的各个模态，下面结合各个模态对各个模态下第一辐射体111及第二辐射体121上的主要电流分布进行详细描述。请一并参阅图15-图20，图15为模态a对应的主要电流分布示意图；图16为模态b对应的主要电流分布示意图；图17为模态c对应的主要电流分布示意图；图18为模态d对应的主要电流分布；图19为模态e对应的主要电流分布；图20为模态f对应的主要电流分布。为了使得所述第一天线110及所述第二天线120支持前面所述的的各个模态，所述第一辐射体111上的第一馈电点P1邻近所述第一辐射体111的中点靠近所述第二辐射体121的部分上，所述第二辐射体121上的第二馈电点P2邻近所述第二辐射体121与所述第一辐射体111之间的间隙设置。
请参阅图15，当所述第一天线110谐振于第一谐振模式(模态a)时，所述第一辐射体111上的电流由所述第一接地端G1依次流经所述第一馈电点P1及所述自由端F1。
请参阅图16，当所述第一天线110谐振于第二谐振模式(模态b)时，所述第一辐射体111上的电流由所述第一馈电点P1依次流向所述第二子辐射体1112与所述第三子辐射体1113的连接点及所述第一自由端F1。
请参阅图17，当所述第一天线110谐振于第三谐振模式(模态c)时，所述第一辐射体111上的电流包括第一子电流Ix及第二子电流Iy，所述第一子电流Ix经由所述第一接地端G1流向所述第一馈电点P1，所述第二子电流Iy经由所述第一自由端F1流向所述第一馈电点P1。
请参阅图18，当所述第二天线120谐振于所述第四谐振模式时，所述第二辐射体121上的电流由所述第二自由端F2流向所述流向所述第二接地端F2，且还由所述第二馈电点P2流向所述第二接地端G2。
请参阅图19，当所述第二天线120谐振于所述第五谐振模式时，所述第二辐射体121上的电流经由所述第二接地端G2流向所述第二自由端F2。
请参阅图20，当所述第二天线120谐振于所述第六谐振模式时，所述第二辐射体121上的电流经由所述第二馈电点P2流向所述第二自由端G2。
需要说明的是，图15-20为各个模态对应的主要电流分布，并不代表各个模态下全部的电流分布。由于第一辐射体111与所述第二辐射体121的耦合作用，还会有电流由第三子辐射体1113耦合到第二辐射体121中的第四子辐射体1211，并经由第四子辐射体1211及第五子辐射体1212至地。比如，在模态b中及模态c中，第二辐射体121上也均有电流分布，但是在模态b及模态c中，主要电流分布在第一辐射体111上，而不在第二辐射体121上，因此，对于第二辐射体121上的电流分布没有进行示意。同样地，在模态d～模态f中，主要电流分布在第二辐射体121上，同时由于所述第一辐射体111与所述第二辐射体121的耦合作用，所述第一辐射体111上也有电流分布。
请一并参阅图21及图22，图21为本申请一实施方式提供的电子设备的立体结构图；图22为一实施方式提供的图21中I-I线的剖视图。所述电子设备1包括前面任意实施方式所述的天线组件10。
请参阅一并图23及图24，图23为本申请一实施方式中金属框体的俯视图；图24为本申请另一实施方式中金属框体的俯视图。所述电子设备1还包括金属框体20。所述金属框体20包括框体本体210、第一金属段220、及第二金属段230。所述第一金属段220与所述第二金属段230之间间隔设置，所述第一金属段220与所述第二金属段230分别与所述框体本体210之间具有缝隙，所述第一金属段220背离所述第二金属段230的一端与所述框体本体210相连，所述第二金属段230背离所述第一金属段 220的一端与所述框体本体210相连，其中，所述第一辐射体111包括所述第一金属段220，所述第二辐射体121包括所述第二金属段230。在图23中，以所述第一金属段220及所述第二金属段230对应所述框体本体210的角为例进行示意；在图24中，以所述第一金属段220及所述第二金属段230对应所述框体本体210的边为例进行示意。
由于较大块的金属可构成地极，因此，所述框体本体210可构成所述地极，所述第一金属段220背离所述第二金属段230的一端与所述框体本体210相连，以使得所述第一金属段220接地；所述第二金属段230背离所述第二金属段230的一端与所述框体本体210相连，以使得所述第二金属段230接地。
请再次参阅图22，所述金属框体20包括边框240，所述边框240弯折连接于所述框体本体210的周缘，所述第一金属段220及所述第二金属段230形成于所述边框240上。
在本实施方式中，所述金属框体20为所述电子设备1的中框30。
所述中框30的材质为金属，比如为铝镁合金。所述中框30通常构成电子设备1的地，所述电子设备1中的电子器件需要接地时，可连接所述中框30以接地。此外，所述电子设备1中的地系统除了包括所述中框30之外，还包括电路板50上的地以及屏幕40中的地。
在本实施方式中，所述电子设备1还包括屏幕40、电路板50及电池盖60。所述屏幕40可以为具有显示作用的显示屏，也可以为集成有显示及触控作用的屏幕40。所述屏幕40用于显示文字、图像、视频等信息。所述屏幕40承载于所述中框30，且位于所述中框30的一侧。所述电路板50通常也承载于所述中框30，且所述电路板50和所述屏幕40承载于所述中框30相背的两侧。前面介绍的天线组件10中的第一信号源112、第二信号源122、第一选频滤波电路113、及第二选频滤波电路123中的至少一个或多个可设置在所述电路板50上。所述电池盖60设置于所述电路板50背离中框30的一侧，所述电池盖60、所述中框30、所述电路板50、及所述屏幕40相互配合以组装成一个完整的电子设备1。可以理解地，所述电子设备1的结构描述仅仅为对电子设备1的结构的一种形态的描述，不应当理解为对电子设备1的限定，也不应当理解为对天线组件10的限定。
在其他实施方式中，所述金属框体20也称为中框30，仅仅是一个金属框体20设置在电子设备1内部。
在其他实施方式中，所述第一辐射体111为FPC天线辐射体或者为LDS天线辐射体、或者为PDS天线辐射体、或者为金属枝节；所述第二辐射体121为FPC天线辐射体或者为LDS天线辐射体、或者为PDS天线辐射体、或者为金属枝节。所述第一辐射体111可设置于所述中框30的边缘，且电连接所述中框30。可以理解地，在其他实施方式中，所述第一辐射体111和所述第二辐射体121也可以设置在其他位置，且电连接所述电子设备1中的地系统。所述电子设备1中的地系统包括中框30、屏幕40、电路板50，所述第一辐射体111及所述第二辐射体121电连接所述电子设备1的地系统，包括所述第一辐射体111及所述第二辐射体121电连接所述中框30、屏幕40、电路板50中的任何一个或多个。
在一实施方式中，所述第一辐射体111与所述第二辐射体121为同种类型的天线辐射体，且设置于同一基板上。所述第一辐射体111及所述第二辐射体121的类型相同，且设置在同一基板上，从而方便所述第一辐射体111及所述第二辐射体121的制备及所述第一辐射体111及所述第二辐射体121与电子设备1中的其他部件组装。在本实施方式中所述电子设备1还包括地系统，所述地系统包括中框30、电路板50、及显示屏中的一种或多种，所述第一辐射体111背离所述第二辐射体121的一端电连接所述地系统以接地，所述第二辐射体121背离所述第一辐射体111的一端电连接所述地系统以接地。本实施方式中，所述第一辐射体111为FPC天线辐射体或者为LDS天线辐射体、或者为PDS天线辐射体、或者为金属枝节；所述第二辐射体121为FPC天线辐射体或者为LDS天线辐射体、或者为PDS天线辐射体、或者为金属枝节，但是所述第一辐射体111及所述第二辐射体121不是在中框30上直接形成时，需要电连接到电子设备1中的地系统。
所述第一辐射体111电连接至中框30的地时，所述第一辐射体111可通过连接筋连接中框30的地，或者，所述第一辐射体111通过导电弹片电连接中框30的地。同样地，所述第二辐射体121电连接至中框30的地时，所述第二辐射体121可通过连接筋连接中框30的地，或者，所述第二辐射体121通过导电弹片电连接中框30的地。
请参阅图25，图25为一实施方式中第一辐射体及第二辐射体在电子设备的位置示意图。在本实施方式中，电子设备1包括顶部1a和底部1b，所述第一辐射体111及所述第二辐射体121均设置于所述顶部1a。
所谓顶部1a，是指电子设备1使用时位于上面的部分，而底部1b是和顶部1a相对的是位于电子设备1的下面的区域。
所述顶部1a包括三种情况：所述第一辐射体111及所述第二辐射体121设置于所述电子设备1的左上角；或者，所述第一辐射体111及所述第二辐射体121设置于所述电子设备1的顶边；或者所述第一辐射体111及所述第二辐射体121设置于所述电子设备1的右上角。
当所述第一辐射体111及所述第二辐射体121设置于所述电子设备1的左上角时包括如下几种情况：所述第一辐射体111的部分位于左侧边，所述第一辐射体111的另外部分位于顶边，且所述第二辐射体121均位于所述顶边；或者，所述第二辐射体121部分位于顶边，所述第二辐射体121的另外一部分位于左边，且所述第一辐射体111位于所述左边。
当所述第一辐射体111及所述第二辐射体121设置于所述电子设备1的右上角时，包括如下几种情况：所述第一辐射体111部分位于顶边，所述第一辐射体111的另外部分位于右侧边，且所述第二辐射体121位于右边；或者，所述第二辐射体121部分位于右边，所述第二辐射体121部分位于顶边，且所述第一辐射体111部分位于顶边。
当所述电子设备1立体放置时，所述电子设备1的顶部1a通常背离地面，而所述电子设备1的底部1b通常靠近地面。当所述第一辐射体111及所述第二辐射体121设置在所述顶部1a时，第一天线110及第二天线120的上半球辐射效率较好，从而使得所述第一天线110及所述第二天线120具有较好的通信效率。当然，在其他实施方式中，所述第一辐射体111及所述第二辐射体121也可对应所述电子设备1的底部1b设置，虽然所述第一辐射体111及所述第二辐射体121对应所述电子设备1的底部1b设置时，第一天线110及第二天线120的上半球辐射效率没有那么好，但只要满足上半球辐射效率大于等于预设效率也是可以具有较为良好的通信效果的。
请参阅图26，图26为另一实施方式中第一辐射体及第二辐射体在电子设备的位置示意图。本实施方式中的电子设备1包括首尾依次相连的第一边11、第二边12、第三边13、及第四边14。所述第一边11与所述第三边13为电子设备1的短边，所述第二边12及所述第四边14为所述电子设备1的长边。所述第一边11与所述第三边13相对且间隔设置，所述第二边12与所述第四边14相对且间隔设置，所述第二边12分别与所述第一边11及所述第三边13弯折相连，所述第四边14分别与所述第一边11及所述第三边13弯折相连。所述第一边11与所述第二边12的连接处、所述第二边12与所述第三边13的连接处、所述第三边13与所述第四边14的连接处、所述第四边14与所述第一边11的连接处均形成电子设备1的角。所述第一辐射体111及所述第二辐射体121可对应所述电子设备1中的任意一个角设置，需要注意的是，所述第一辐射体111与所述第二辐射体121均对应所述电子设备1的同一个角设置。当所述第一辐射体111及所述第二辐射体121对应所述电子设备1的角设置时，所述第一天线110及所述第二天线120的效率较高。可以理解地，在本实施方式中，以所述第一边11及所述第三遍为所述电子设备1的短边，且所述第二边12及所述第四边14为电子设备1的长边为例进行示意，在其他实施方式中，所述第一边11、所述第二边12、所述第三边13、及所述第四边14长度相等。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型，这些改进和润饰也视为本申请的保护范围。

Claims (20)

  1. 一种天线组件，其特征在于，所述天线组件包括：
    第一天线及第二天线，所述第一天线包括第一辐射体、第一信号源、及第一选频滤波电路，所述第二天线包括第二辐射体、第二信号源、及第二选频滤波电路；
    所述第一辐射体与所述第二辐射体间隔设置且相互耦合，所述第一辐射体背离所述第二辐射体的一端接地，所述第一信号源电连接所述第一选频滤波电路至第一辐射体，所述第二辐射体背离所述第一辐射体的一端接地，所述第二信号源电连接所述第二选频滤波电路至所述第二辐射体；
    所述第一天线用于产生至少一个谐振模式，所述第二天线用于产生至少两个谐振模式，所述第二天线的至少两个谐振模式用于覆盖第一频段、第二频段及第三频段的电磁波信号的收发，所述第二天线的至少一个谐振模式由所述第一天线与所述第二天线之间的容性耦合馈电激励产生。
  2. 如权利要求1所述的天线组件，其特征在于，所述第一天线具有第一谐振模式、第二谐振模式、及第三谐振模式，所述第二天线具有第四谐振模式、第五谐振模式、及第六谐振模式，所述第一谐振模式、所述第二谐振模式、所述第三谐振模式、所述第四谐振模式、所述第五谐振模式、及所述第六谐振模式共同覆盖MHB和UHB频段的电磁波信号的收发。
  3. 如权利要求2所述的天线组件，其特征在于，所述第一选频滤波电路及所述第二选频滤波电路用于根据预设的第一选频参数调节第一天线的谐振频率，以使得所述第一天线谐振于所述第一谐振模式、所述第二谐振模式及所述第三谐振模式，其中，在所述第一谐振模式下，所述第一天线用于收发第四频段的电磁波信号；在所述第二谐振模式下，所述第一天线用于收发第五频段的电磁波信号；在所述第三谐振模式下，所述第一天线用于收发第六频段及第七频段的电磁波信号。
  4. 如权利要求3所述天线组件，其特征在于，所述第一辐射体包括第一子辐射体、第二子辐射体、及第三子辐射体，所述第一子辐射体、所述第二子辐射体、及所述第三子辐射体依次弯折相连，且所述第一子辐射体与所述第三子辐射体均位于所述第二子辐射体的同侧，所述第一子辐射体具有背离所述第二子辐射体第一接地端，所述第一接地端接地，所述第二子辐射体具有第一馈电点，所述第一馈电点电连接所述第一选频滤波电路，所述第三子辐射体具有背离所述第二子辐射体的第一自由端，所述第一自由端邻近所述第二辐射体设置。
  5. 如权利要求4所述的天线组件，其特征在于，当所述第一天线谐振于第一谐振模式时，所述第一辐射体上的电流由所述第一接地端依次流经所述第一馈电点及所述第一自由端；
    当所述第一天线谐振于第二谐振模式时，所述第一辐射体上的电流由所述第一馈电点依次流向所述第二子辐射体与所述第三子辐射体的连接点及所述第一自由端；
    当所述第一天线谐振于第三谐振模式时，所述第一辐射体上的电流包括第一子电流及第二子电流，所述第一子电流经由所述第一接地端流向所述第一馈电点，所述第二子电流经由所述第一自由端流向所述第一馈电点。
  6. 如权利要求3所述的天线组件，其特征在于，所述第四频段包括GPS-L1频段，所述第五频段包括LTE MHB频段，所述第六频段包括WIFI 2.4G频段，所述第七频段包括N41频段。
  7. 如权利要求2-6任意一项所述的天线组件，其特征在于，所述第一选频电路及所述第二选频电路用于根据预设的第二选频参数调节所述第二天线的谐振频率，以使得所述第二天线谐振于所述第四谐振模式、所述第五谐振模式、及所述第六谐振模式，其中，在所述第四谐振模式下，所述第二天线用于收发第一频段的电磁波信号；在所述第五谐振模式下，所述第二天线用于收发第二频段及第三频段的电磁波信号；在第六谐振模式下，所述第二天线用于收发第八频段的电磁波信号。
  8. 如权利要求7所述的天线组件，其特征在于，所述第二辐射体包括第四子辐射体、及第五子辐射体，所述第四子辐射体与所述第五子辐射体弯折相连，所述第四子辐射体具有背离所述第五子辐射体的第二自由端，所述第二自由端与所述第一辐射体间隔设置，所述第五子辐射体具有第二馈电点，所述第二馈电点电连接所述第二选频滤波电路，所述第五子辐射体具有背离所述第四子辐射体的第二接地端，所述第二接地端接地。
  9. 如权利要求8所述的天线组件，其特征在于，当所述第二天线谐振于所述第四谐振模式时，所述第二辐射体上的电流由所述第二自由端流向所述流向所述第二接地端，且还由所述第二馈电点流向所述第二接地端；
    当所述第二天线谐振于所述第五谐振模式时，所述第二辐射体上的电流经由所述第二接地端流向所述第二自由端；
    当所述第二天线谐振于所述第六谐振模式时，所述第二辐射体上的电流经由所述第二馈电点流向所述第二自由端。
  10. 如权利要求7所述的天线组件，其特征在于，所述第一频段包括N78频段，所述第二频段包括N77频段，所述第三频段包括N79频段，所述第八频段包括WIFI 5G频段。
  11. 如权利要求1所述的天线组件，其特征在于，所述第一辐射体包括第一子辐射体及第二子辐射体，所述第一子辐射体与所述第二子辐射体弯折相连，所述第一子辐射体具有背离所述第二子辐射体的第一接地端，所述第一接地端接地，所述第二子辐射体具有背离所述第一子辐射体的第一自由端，所述第一自由端邻近所述第二辐射体设置，所述第二子辐射体具有第一馈电点以电连接所述第一选频滤波电路；所述第二辐射体包括第三子辐射体及第四子辐射体，所述第三子辐射体与所述第四子辐射体弯折相连，所述第三子辐射体具有背离所述第四子辐射体的第二自由端，所述第二自由端与所述第一自由端间隔设置，所述第三子辐射体具有第二馈电点以电连接所述第二选频滤波电路，所述第四子辐射体具有背离所述第三子辐射体的第二接地端，所述第二接地端接地。
  12. 如权利要求1所述的天线组件，其特征在于，所述第一辐射体与所述第二辐射体之间的间隙的尺寸d为：0.5mm≤d≤1.5mm。
  13. 如权利要求1所述的天线组件，其特征在于，所述第一选频滤波电路包括一个或多个子选频滤波电路，所述第二选频滤波电路包括一个或多个子选频滤波电路，所述子选频滤波电路还用于隔离第一天线及第二天线。
  14. 如权利要求13所述的天线组件，其特征在于，所述子选频滤波电路包括以下一种或多种电路：
    电感与电容串联形成的带通电路；
    电感与电容并联形成的带阻电路；
    电感、第一电容、及第二电容，所述电感与所述第一电容并联，且所述第二电容电连接所述电感与所述第一电容电连接的节点；
    电容、第一电感、及第二电感，所述电容与所述第一电感并联，且所述第二电感电连接所述电容与所述第一电感电连接的节点；
    电感、第一电容、及第二电容，所述电感与所述第一电容串联，且所述第二电容的一端电连接所述电感未连接所述第一电容的第一端，所述第二电容的另一端电连接所述第一电容未连接所述电感的一端；
    电容、第一电感、及第二电感，所述电容与所述第一电感串联，所述第二电感的一端电连接所述电容未连接第一电感的一端，所述第二电感的另一端电连接所述第一电感未连接所述电容的一端；
    第一电容、第二电容、第一电感、及第二电感，所述第一电容与所述第一电感并联，所述第二电容与所述第二电感并联，且所述第二电容与所述第二电感并联形成的整体的一端电连接所述第一电容与所述第一电感并联形成的整体的一端；
    第一电容、第二电容、第一电感、及第二电感，所述第一电容与所述第一电感串联形成第一单元，所述第二电容与所述第二电感串联形成第二单元，且所述第一单元与所述第二单元并联。
  15. 如权利要求1所述的天线组件，其特征在于，所述第二信号源产生的激励信号经由第二选频滤波电路之后，容性耦合馈电至所述第二辐射体。
  16. 一种电子设备，其特征在于，所述电子设备包括如权利要求1-15任意一项所述的天线组件。
  17. 如权利要求16所述的电子设备，其特征在于，所述电子设备还包括金属框体，所述金属框体包括框体本体、第一金属段、及第二金属段，所述第一金属段与所述第二金属段之间间隔设置，所述第一金属段与所述第二金属段分别与所述框体本体之间具有缝隙，所述第一金属段背离所述第二金属段的一 端与所述框体本体相连，所述第二金属段背离所述第一金属段的一端与所述框体本体相连，其中，所述第一辐射体包括所述第一金属段，所述第二辐射体包括所述第二金属段。
  18. 如权利要求17所述的电子设备，其特征在于，所述金属框体包括边框，所述边框弯折连接于所述框体本体的周缘，所述第一金属段及所述第二金属段形成于所述边框上。
  19. 如权利要求16所述的电子设备，其特征在于，所述电子设备还包括地系统，所述地系统包括中框、电路板、及显示屏中的一种或多种，所述第一辐射体背离所述第二辐射体的一端电连接所述地系统以接地，所述第二辐射体背离所述第一辐射体的一端电连接所述地系统以接地。
  20. 如权利要求16所述的电子设备，其特征在于，电子设备包括顶部和底部，所述第一辐射体及所述第二辐射体均设置于所述顶部。
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