WO2023273604A1 - Module d'antenne et dispositif électronique - Google Patents

Module d'antenne et dispositif électronique Download PDF

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Publication number
WO2023273604A1
WO2023273604A1 PCT/CN2022/091358 CN2022091358W WO2023273604A1 WO 2023273604 A1 WO2023273604 A1 WO 2023273604A1 CN 2022091358 W CN2022091358 W CN 2022091358W WO 2023273604 A1 WO2023273604 A1 WO 2023273604A1
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WO
WIPO (PCT)
Prior art keywords
radiator
electrically connected
capacitor
frequency band
circuit
Prior art date
Application number
PCT/CN2022/091358
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English (en)
Chinese (zh)
Inventor
赵嘉城
吴小浦
Original Assignee
Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2023273604A1 publication Critical patent/WO2023273604A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands

Definitions

  • the present application relates to the technical field of communications, and in particular to an antenna module and electronic equipment.
  • the present application provides an antenna module and electronic equipment that improve the coverage of electromagnetic wave signals.
  • an antenna module including:
  • the radiator includes a first radiator and a second radiator, the first radiator has a first ground terminal, a first coupling terminal, and a first coupling terminal between the first ground terminal and the first coupling terminal.
  • a feed point, a first connection point, the first connection point is located between the first feed point and the first coupled end
  • the second radiator has a second coupled end, a second ground end, and A second feed point located between the second coupling end and the second grounding end, a coupling gap between the first coupling end and the second coupling end, the first grounding end and the second grounding end
  • Both the second ground terminals are electrically connected to the reference ground;
  • a first feed system electrically connected to the first feed point, and used to excite the radiator to send and receive electromagnetic wave signals in the first frequency band;
  • the second feeding system is electrically connected to the second feeding point, and is used to excite the radiator to send and receive electromagnetic wave signals in the second frequency band, wherein the minimum frequency of the second frequency band is greater than the maximum frequency of the first frequency band ;as well as
  • the first bandpass circuit is electrically connected between the first connection point and the reference ground, and the first bandpass circuit is used to conduct the electromagnetic wave signal of the third frequency band to the reference ground, wherein the The third frequency band is located within the range of the second frequency band, so that the second feeding system excites the radiator to support at least two resonance modes in the third frequency band.
  • an electronic device provided by the present application includes the above-mentioned antenna module.
  • FIG. 1 is a schematic structural diagram of an electronic device provided in the first embodiment of the present application.
  • Fig. 2 is a partially exploded schematic diagram of an electronic device shown in Fig. 1;
  • FIG. 3 is a schematic diagram of an equivalent circuit of the antenna module provided in the first embodiment of the present application.
  • Fig. 4 is a structural schematic diagram of the first first bandpass circuit shown in Fig. 3;
  • Fig. 5 is the structural representation of the second first bandpass circuit shown in Fig. 3;
  • Fig. 6 is a schematic diagram of the first structure of the antenna module shown in Fig. 3 provided with a second bandpass circuit;
  • Fig. 7 is a schematic diagram of a second structure in which a second bandpass circuit is provided in the antenna module shown in Fig. 3;
  • Fig. 8 is a structural schematic diagram of the second bandpass circuit shown in Fig. 6 and Fig. 7;
  • Fig. 9 is a schematic diagram of an equivalent circuit of the first feeding system in the antenna module shown in Fig. 3 for transmitting and receiving electromagnetic wave signals in the first frequency band;
  • Fig. 10 is an S-parameter curve diagram of the electromagnetic wave signal sent and received in the first frequency band by the first feeding system shown in Fig. 9;
  • Fig. 11 is an equivalent circuit diagram in which the first radiator of the antenna module shown in Fig. 3 is provided with a first regulating circuit;
  • Fig. 12 is a schematic structural diagram of the first regulating circuit shown in Fig. 11;
  • Fig. 13 is a schematic structural diagram of the antenna module shown in Fig. 3 provided with a first adjustment circuit and a second bandpass circuit;
  • Fig. 14 is a schematic structural diagram of a first matching circuit in the antenna module shown in Fig. 3;
  • Fig. 15 is a schematic structural diagram of the first regulating circuit provided by the embodiment of the present application as a series branch of the first matching circuit;
  • Fig. 16 is an S-parameter curve diagram of the first regulating circuit in Fig. 11 by regulating the electromagnetic wave signal in the first frequency band;
  • FIG. 17 is a schematic structural diagram of the first filtering circuit provided by the embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a second filter circuit provided by an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a third filtering circuit provided by an embodiment of the present application.
  • FIG. 20 is a schematic structural diagram of a fourth filter circuit provided by an embodiment of the present application.
  • FIG. 21 is a schematic structural diagram of a fifth filter circuit provided by an embodiment of the present application.
  • FIG. 22 is a schematic structural diagram of a sixth filter circuit provided by an embodiment of the present application.
  • FIG. 23 is a schematic structural diagram of a seventh filter circuit provided by an embodiment of the present application.
  • FIG. 24 is a schematic structural diagram of an eighth filtering circuit provided by an embodiment of the present application.
  • Fig. 25 is an equivalent circuit diagram of the electromagnetic wave signal of the second frequency band sent and received by the second feeding system in the antenna module shown in Fig. 3;
  • Fig. 26 is an S-parameter curve diagram of the second feeding system shown in Fig. 25 transmitting and receiving electromagnetic wave signals in the second frequency band;
  • Fig. 27 is an S-parameter curve diagram of the antenna module shown in Fig. 3 transmitting and receiving electromagnetic wave signals in the first frequency band and the second frequency band;
  • Fig. 28 is an isolation curve diagram of the first signal source and the second signal source provided by the first embodiment of the present application.
  • Fig. 29 is an efficiency curve diagram provided by the embodiment of the present application without the first bandpass circuit and with the first bandpass circuit;
  • Fig. 30 is a schematic diagram of the circuit structure of the second matching network shown in Fig. 3;
  • Fig. 31 is a schematic diagram of an equivalent circuit of the antenna module provided by the second embodiment of the present application.
  • Fig. 32 is a schematic diagram of an equivalent circuit of the antenna module shown in Fig. 31 provided with a third matching circuit;
  • Fig. 33 is a schematic diagram of an equivalent circuit of the second feeding system transmitting and receiving electromagnetic wave signals in the second frequency band in the antenna module shown in Fig. 32;
  • Fig. 34 is an S parameter curve diagram of the electromagnetic wave signal of the second frequency band sent and received by the second feeding system in the antenna module shown in Fig. 33;
  • Fig. 35 is a schematic circuit diagram of the second matching circuit and the third matching circuit of the first kind shown in Fig. 33;
  • FIG. 36 is a schematic circuit diagram of the second matching circuit and the third matching circuit of the second type shown in FIG. 33;
  • Fig. 37 is a schematic circuit diagram of a third second matching circuit and a third matching circuit shown in Fig. 33;
  • Fig. 38 is an efficiency curve diagram provided by an embodiment of the present application without a third radiator and with a third radiator;
  • FIG. 39 is a schematic structural diagram of the first radiator, the second radiator, and the third radiator provided in the embodiment of the present application provided in an electronic device.
  • FIG. 1 is a schematic structural diagram of an electronic device 1000 provided in an embodiment of the present application.
  • the electronic device 1000 includes an antenna module 100 .
  • the antenna module 100 is used to send and receive electromagnetic wave signals to realize the communication function of the electronic device 1000 .
  • the present application does not specifically limit the position of the antenna module 100 on the electronic device 1000 , and FIG. 1 is only an example.
  • the electronic device 1000 further includes a display screen 200 and a casing 300 that are closed and connected to each other.
  • the antenna module 100 can be disposed inside the housing 300 of the electronic device 1000 , or partly integrated with the housing 300 , or partly disposed outside the housing 300 .
  • the radiator of the antenna module 100 in FIG. 1 is integrated with the casing 300 .
  • the antenna module 100 can also be arranged on the retractable component of the electronic device 1000, in other words, at least a part of the antenna module 100 can also be extended along with the retractable component of the electronic device 1000. outside of the electronic device 1000, and as the retractable components retract into the electronic device 1000; or, the overall length of the antenna module 100 extends along with the extension of the retractable components of the electronic device long.
  • the electronic equipment 1000 includes, but is not limited to, telephones, televisions, tablet computers, mobile phones, cameras, personal computers, notebook computers, vehicle equipment, earphones, watches, wearable equipment, base stations, vehicle radars, customer premise equipment (Customer Premise Equipment) , CPE) and other equipment capable of sending and receiving electromagnetic wave signals.
  • the electronic device 1000 is taken as an example of a mobile phone, and for other devices, reference may be made to the specific description in this application.
  • the thickness direction of the device 1000 is defined as the Z-axis direction.
  • the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other.
  • the direction indicated by the arrow is the forward direction.
  • the casing 300 includes a frame 310 and a rear cover 320 .
  • a middle plate 330 is formed in the frame 310 by injection molding, and a plurality of installation slots for installing various electronic devices are formed on the middle plate 330 .
  • the middle board 330 and the frame 310 together form a middle frame 340 of the electronic device 1000 .
  • the middle frame 340 and the rear cover 320 are closed, a receiving space is formed on both sides of the middle frame 340 .
  • One side (such as the rear side) of the frame 310 surrounds the periphery of the rear cover 320
  • the other side (such as the front side) of the frame 310 surrounds the periphery of the display screen 200 .
  • the electronic device 1000 also includes a battery, a camera, a microphone, a receiver, a loudspeaker, a face recognition module, a fingerprint recognition module, etc., which can realize the basic functions of the mobile phone, and are not included in this embodiment. Let me repeat. Understandably, the above introduction to the electronic device 1000 is only an illustration of an environment in which the antenna module 100 is applied, and the specific structure of the electronic device 1000 should not be construed as a limitation to the antenna module 100 provided in this application. .
  • the antenna module 100 provided in this application will be specifically described below in conjunction with the accompanying drawings. Of course, the antenna module 100 provided in this application includes but is not limited to the following embodiments.
  • the antenna module 100 at least includes a radiator 10 , a first feeding system 20 and a second feeding system 40 .
  • the radiator 10 at least includes a first radiator 11 and a second radiator 12 .
  • the first radiator 11 has a first ground terminal 111 and a first coupling terminal 112 , and a first feeding point between the first ground terminal 111 and the first coupling terminal 112 A1.
  • the first radiator 11 shown in FIG. 3 is only an example, and cannot limit the shape of the first radiator 11 provided in this application.
  • the first ground terminal 111 and the first coupling terminal 112 are opposite ends of the first radiator 11 in a straight line shape. In other embodiments, the first radiator 11 is bent, the first ground end 111 and the first coupling end 112 may not face each other along a straight line, but the first ground end 111 and the The first coupling ends 112 are two ends of the first radiator 11 .
  • the second radiator 12 has a second coupling end 121 and a second grounding end 122 , and a second feeding point between the second coupling end 121 and the second grounding end 122 A2.
  • the first radiator 11 and the second radiator 12 can generate capacitive coupling through the coupling gap 113 .
  • the second radiator 12 shown in FIG. 3 is only an example, and cannot limit the shape of the second radiator 12 provided in this application.
  • the second coupling end 121 and the second free end 122 are two ends of the second radiator 12 .
  • the first radiator 11 and the second radiator 12 may be arranged in a straight line or substantially in a straight line (that is, there is a small tolerance in the design process).
  • the first radiator 11 and the second radiator 12 may also be arranged in a staggered manner in the extension direction, so as to form an avoidance space and the like.
  • the first coupling end 112 is opposite to the second coupling end 121 and arranged at intervals.
  • the coupling slot 113 is a gap between the first radiator 11 and the second radiator 12 , for example, the coupling slot 113 may have a width of 0.5-2 mm, but is not limited to this size.
  • the first radiator 11 and the second radiator 12 can be regarded as two parts of the radiator 10 separated by the coupling slot 113 .
  • the first radiator 11 and the second radiator 12 are capacitively coupled through the coupling gap 113 .
  • capacitively coupling means that an electric field is generated between the first radiator 11 and the second radiator 12, and the signal of the first radiator 11 can be transmitted to the second radiator through the electric field.
  • the signal of the second radiator 12 can be transmitted to the first radiator 11 through an electric field, so that even if the first radiator 11 and the second radiator 12 are not in direct contact or direct connection
  • the electrical signal conduction can also be realized in the state.
  • the present application does not specifically limit the shape and structure of the first radiator 11 and the second radiator 12, and the shapes of the first radiator 11 and the second radiator 12 are both Including but not limited to strips, sheets, rods, coatings, films, etc.
  • the present application does not limit the extension tracks of the first radiator 11 and the second radiator 12, so the Both the first radiator 11 and the second radiator 12 can extend along a trajectory such as a straight line, a curve, or multiple bends.
  • the above-mentioned radiator 10 may be a line with uniform width on the extension track, or may be a strip shape with a gradually changing width or a widened area.
  • the material of the radiator 10 is a conductive material, and specific materials include but are not limited to metals such as copper, gold, and silver, or alloys formed of copper, gold, and silver, or copper, gold, silver and other materials Alloys formed; graphene, or conductive materials formed by combining graphene with other materials; oxide conductive materials such as tin oxide and indium; carbon nanotubes and polymers to form hybrid materials, etc.
  • Both the first ground terminal 111 and the second ground terminal 122 are electrically connected to a reference ground GND.
  • the reference ground GND described in this application is a reference ground system.
  • the reference ground system may be one structure, or multiple independent but electrically connected structures.
  • the first ground terminal 111 and the second ground terminal 122 are respectively electrically connected to different positions of a reference ground GND structure, or two structures that are electrically connected to each other and are physically independent from each other. Ways include but are not limited to direct welding, or indirect electrical connection through coaxial lines, microstrip lines, conductive shrapnel, conductive glue, etc.
  • the reference ground GND provided in this application can be set inside the antenna module 100, or outside the antenna module 100 (such as inside the electronic device 1000, or inside the electronic device of the electronic device 1000).
  • the antenna module 100 itself has a reference ground GND.
  • Specific forms of the reference ground GND include, but are not limited to, metal conductive plates, metal conductive layers formed inside flexible circuit boards, and rigid circuit boards.
  • the reference ground GND of the antenna module 100 is electrically connected to the reference ground of the electronic device 1000 .
  • the antenna module 100 itself does not have a reference ground GND, and the first ground terminal 111 and the second ground terminal 122 of the antenna module 100 are directly electrically connected or indirectly electrically connected through a conductive member.
  • the antenna module 100 is installed in the electronic device 1000, which is a mobile phone, and the reference ground of the electronic device 1000 is the magnesium-aluminum metal alloy plate of the middle plate 330 of the mobile phone.
  • the first ground terminal 111 and the second ground terminal 122 of the antenna module 100 are electrically connected to a magnesium-aluminum metal alloy plate.
  • Other structures of the antenna module 100 described later are electrically connected to the reference ground GND, and reference can be made to any one of the implementations described above that are electrically connected to the reference ground GND.
  • the first feeding system 20 is electrically connected to the first feeding point A1 of the first radiator 11 .
  • the first feeding system 20 is used to excite the radiator 10 to send and receive electromagnetic wave signals in the first frequency band.
  • the first feeding system 20 includes a first matching circuit M1 and a first signal source 21 .
  • one end of the first signal source 21 is electrically connected to one end of the first matching circuit M1
  • the other end of the first matching circuit M1 is electrically connected to the first feeding point A1 of the first radiator 11 .
  • the first signal source 21 includes, but is not limited to, a radio frequency transceiver chip or a power feeding part electrically connected to a radio frequency transceiver chip.
  • the first matching circuit M1 may include capacitive devices, inductive devices and the like.
  • the first matching circuit M1 further includes a switching device. The specific structure and function of the first matching circuit M1 will be described in detail later.
  • the present application does not limit the specific type of the electromagnetic wave signal in the first frequency band.
  • the signal type includes but is not limited to GPS signal, WiFi signal, 4G/5G mobile communication signal, and the like.
  • the electromagnetic wave signals in the first frequency band include at least one of GPS-L5 signals and mobile communication signals with a frequency less than 1000 MHz.
  • the first frequency band is a mobile communication signal whose frequency is less than 1000 MHz as an example for illustration.
  • 4G mobile communication signals or 5G mobile communication signals with a frequency less than 1000MHz are defined as the LB frequency band (that is, the abbreviation of Low Band, which is interpreted as low frequency in Chinese).
  • the first frequency band is part or all of the LB frequency band.
  • the first frequency band is a part of the LB frequency band.
  • the second feeding system 40 includes a second matching circuit M2 and a second signal source 31 .
  • one end of the second signal source 31 is electrically connected to one end of the second matching circuit M2, and the other end of the second matching circuit M2 is electrically connected to the second feeding point of the second radiator 12 A2.
  • the second signal source 31 includes, but is not limited to, a radio frequency transceiver chip or a power feeding part electrically connected to a radio frequency transceiver chip.
  • the second matching circuit M2 may include capacitive devices, inductive devices and the like.
  • the second matching circuit M2 further includes a switching device. The specific structure and function of the second matching circuit M2 will be described in detail later.
  • the second feeding system 40 is used to excite the radiator 10 to send and receive electromagnetic wave signals in the second frequency band.
  • the electromagnetic wave signals in the first frequency band and the second frequency band are signals of the same type or different types.
  • the electromagnetic wave signals of the first frequency band and the second frequency band are signals of the same type, for example, both are 4G/5G mobile communication signals.
  • the minimum frequency of the second frequency band is greater than the maximum frequency of the first frequency band.
  • the first frequency band is K1-K2
  • the second frequency band is K3-K4.
  • the value of K3 is greater than the value of K2.
  • the first frequency band is the LB frequency band
  • the electromagnetic wave signals in the second frequency band include mobile communication signals greater than or equal to 1000 MHz and less than or equal to 6000 MHz.
  • This application defines 4G mobile communication signals or 5G mobile communication signals with a frequency greater than or equal to 1000MHz and less than or equal to 3000MHz as the MHB frequency band (that is, the abbreviation of Middle High Band, which is interpreted as medium and high frequency in Chinese).
  • the second frequency band is part or all of the MHB+UHB frequency band.
  • the MHB+UHB frequency band mentioned in this application is a combined frequency band formed by the MHB frequency band and the UHB frequency band, that is, greater than or equal to 1000 MHz and less than or equal to 6000 MHz.
  • the feed system When the feed system (that is, the first feed system 20 and the second feed system 40) both loads mobile communication signals, the feed system can independently load 4G mobile communication signals, or independently load 5G mobile communication signals, Or it can also load 4G mobile communication signals and 5G mobile communication signals at the same time, that is, to realize the double connection (LTE NR Double Connect, ENDC) between 4G wireless access network and 5G-NR.
  • the frequency band sent and received by the feed system includes multiple carriers (carriers are radio waves of specific frequencies) aggregated, that is, Carrier Aggregation (Carrier Aggregation, CA ) to increase transmission bandwidth, increase throughput, and increase signal transmission rate.
  • Carrier Aggregation Carrier Aggregation
  • the first radiator 11 is further provided with a first connection point B1 located between the first feeding point A1 and the first coupling end 112 .
  • the antenna module 100 also includes a first bandpass circuit 41 .
  • the first bandpass circuit 41 is electrically connected between the first connection point B1 and the reference ground GND.
  • the first bandpass circuit 41 is used to conduct the electromagnetic wave signal of the third frequency band to the reference ground GND. impedance.
  • the low impedance for a certain frequency band mentioned in this application means that the impedance is close to zero, or equivalent to the effect of a short circuit, that is, the frequency band is in a conduction state.
  • the first bandpass circuit 41 has a low impedance to the ground for the electromagnetic wave signal of the third frequency band, which means that the first bandpass circuit 41 transfers the electromagnetic wave signal of the third frequency band on the first radiator 11 to the ground.
  • the signal is conducted to the reference ground GND, so that the electromagnetic wave signal of the third frequency band will no longer or less go to the ground through the first ground terminal 111, by increasing the electromagnetic wave signal of the third frequency band to the ground path, so that the second feeding system 40 excites the radiator 10 to add at least one resonant mode in the third frequency band, thereby realizing that the second feeding system 40 excites the radiator 10 in the third frequency band have at least two resonant modes.
  • at least one resonance mode is generated by the first bandpass circuit 41 conducting the electromagnetic wave signal of the third frequency band to the reference ground GND, and at least one resonance mode is excited by the second feeding system 40 A second radiator 12 is generated.
  • the present application does not limit the specific type of the electromagnetic wave signal in the third frequency band, for example, the signal type includes but not limited to GPS signal, WiFi signal, 4G/5G mobile communication signal and so on.
  • the third frequency band is located within the range where the second frequency band is located.
  • the electromagnetic wave signals in the second frequency band and the third frequency band are signals of the same type, for example, both are 4G/5G mobile communication signals.
  • the electromagnetic wave signals in the third frequency band include mobile communication signals with a frequency greater than 3000 MHz and less than or equal to 6000 MHz.
  • the third frequency band is part or all of the UHB frequency band.
  • the third frequency band is a part of the UHB frequency band.
  • the electromagnetic wave signal in the third frequency band includes a part of frequency bands of mobile communication signals with a frequency greater than or equal to 1000 MHz and less than or equal to 6000 MHz.
  • the electromagnetic wave signals in the third frequency band include mobile communication signals in the N78 frequency band. Among them, the corresponding frequency band of N78 is 3300-4100MHz.
  • the frequency band of the electromagnetic wave signal corresponds to the length of the radiator 10 one-to-one.
  • an electronic device such as a mobile phone with extremely limited space, it is difficult to achieve the above-mentioned LB+MHB+UHB full-band signal coverage in this application.
  • the UHB frequency band for mobile communication signals.
  • a mode is generated in the range of 3000MHz to 5000MHz, and the bandwidth of a mode is limited. In this way, it is difficult to cover some UHB frequency bands or achieve high efficiency in some UHB frequency bands. cover. For example, it is difficult to meet the broadband requirements (3300-4100MHz) for N78.
  • the LB+MHB+UHB frequency band mentioned in this application is a combined frequency band formed by the LB frequency band, the MHB frequency band and the UHB frequency band, that is, greater than 0 MHz and less than or equal to 6000 MHz.
  • the first bandpass circuit 41 is used to conduct the electromagnetic wave signal of the third frequency band to the reference ground GND, so that the excitation signal of the second feeding system 40 can pass through the first A pass-through circuit 41 is grounded, increasing the grounding path of the electromagnetic wave signal of the third frequency band, increasing the current path of the electromagnetic wave signal of the third frequency band, so that the second feeding system 40 excites the radiator 10 in the third frequency band At least one resonant mode is added inside, so that the radiator 10 has at least two resonant modes in the third frequency band, so that the antenna module 100 has broadband coverage in the third frequency band.
  • the third frequency band is the N78 frequency band
  • the antenna module 100 provided in the embodiment of the present application can realize broadband coverage for the N78 frequency band.
  • the third frequency band may also be other frequency bands in the UHB frequency band.
  • the first radiator 11 and the second radiator 12 are capacitively coupled to realize the multiplexing of the first radiator by the first feed system 20 and the second feed system 40 11.
  • the first feeding system 20 and the feeding system 40 respectively send and receive electromagnetic wave signals in the first frequency band and the second frequency band, and by setting the first bandpass circuit 41, the first bandpass The conduction circuit 41 is used to conduct the electromagnetic wave signal of the third frequency band in the second frequency band to the reference ground GND, by increasing the path of the electromagnetic wave signal of the third frequency band to the ground, so that the first The two-feed system 40 adds at least one resonant mode in the third frequency band, so that the radiator 10 has at least two resonant modes in the third frequency band, thereby performing broadband coverage on the third frequency band , promote the full-frequency coverage in the second frequency band, and improve the spatial multiplexing rate of the antenna through the common-aperture technology of a plurality of different feeding systems, and reduce the number and size of the radiator 10 as much as possible, It is beneficial to be integrated in
  • the first frequency band is a part of the LB frequency band
  • the second frequency band is a part of the MHB+UHB frequency band
  • the third frequency band is an N78 frequency band for example.
  • the specific structure of the first bandpass circuit 41 will be illustrated below with reference to the accompanying drawings. Of course, the specific structure of the first bandpass circuit 41 includes but not limited to the following embodiments.
  • the first bandpass circuit 41 includes one or more resonant elements, wherein the resonant elements are capacitors or inductors.
  • the first bandpass circuit 41 includes a first capacitor C1 and a first inductor L1 .
  • One end of the first capacitor C1 is electrically connected to the first connection point B1.
  • the other end of the first capacitor C1 is electrically connected to one end of the first inductor L1, and the other end of the first inductor L1 is electrically connected to the reference ground GND.
  • the first bandpass circuit 41 provided in this embodiment is designed with specific values of the first capacitance C1 and the first inductance L1 so as to form a small number of resonant elements and be capable of guiding the third frequency band. characteristics of access to the ground.
  • the first bandpass circuit 41 includes a second capacitor C2 , a second inductor L2 and a third inductor L3 .
  • One end of the second capacitor C2 and one end of the third inductor L3 are both electrically connected to the first connection point B1.
  • the other end of the second capacitor C2 is electrically connected to one end of the second inductor L2.
  • Both the other end of the second inductor L2 and the third inductor L3 are electrically connected to the reference ground GND.
  • the first bandpass circuit 41 provided in this embodiment is designed with specific values of the second capacitance C2, the second inductance L2, and the third inductance L3 to form fewer resonant elements, and can
  • the third frequency band has the characteristic of being connected to ground.
  • the first bandpass circuit 41 may also include other three resonant elements or four resonant elements, for details, reference may be made to the combinations shown in FIGS. 19 to 21 , and 23 to 24 .
  • the first bandpass circuit 41 may also be composed of five or more resonant elements and the like.
  • the first radiator 11 further includes a second connection point B2.
  • the antenna module 100 also includes a second bandpass circuit 23 .
  • the second bandpass circuit 23 is electrically connected between the second connection point B2 and the reference ground GND.
  • the second bandpass circuit 23 is used to conduct the electromagnetic wave signal of the second frequency band to the reference ground GND, in other words, the second bandpass circuit 23 realizes low impedance from the second frequency band to the ground .
  • the low impedance for a certain frequency band mentioned in this application means that the impedance is close to zero, or equivalent to the effect of a short circuit, that is, the frequency band is in a conduction state.
  • the second bandpass circuit 23 has a low impedance to the ground for the second frequency band, which means that the second bandpass circuit 23 conducts the signal of the second frequency band on the first radiator 11 to the ground.
  • the reference ground GND so that the signal of the second frequency band will no longer or less go to the ground through the first ground terminal 111, forming a new current path, and combined with the current distribution at the gap, the excitation of all
  • the radiator 10 forms multiple resonances in the second frequency band, so as to achieve wide frequency band and high-efficiency coverage in the second frequency band.
  • the second connection point B2 is located at the first feeding point A1, and the second bandpass circuit 23 is a part of the first matching circuit M1 .
  • the second connection point B2 is located between the first connection point B1 and the first feeding point A1 .
  • the second connection point B2 has a relatively large setting area, improving the efficiency of the second connection point B2.
  • the second bandpass circuit 23 includes but not limited to the following implementation manners.
  • the second bandpass circuit 23 includes a third capacitor C3 and a fourth inductor L4 .
  • One end of the third capacitor C3 is electrically connected to the second connection point B2.
  • the other end of the third capacitor C3 is electrically connected to one end of the fourth inductor L4, and the other end of the fourth inductor L4 is electrically connected to the reference ground GND.
  • the second bandpass circuit 23 provided in this embodiment is designed with specific values of the third capacitance C3 and the fourth inductance L4 to form a small number of resonant elements, and can have a conductive effect on the second frequency band. characteristics of access to the ground.
  • the second bandpass circuit 23 may also include other three resonant elements or four resonant elements, for details, reference may be made to the combination shown in FIG. 17 to FIG. 22 .
  • the second bandpass circuit 23 may also be composed of five or more resonant elements and the like.
  • the second bandpass circuit 23 can be electrically connected to the first matching circuit M1 in parallel. Different points on the radiator 11, or the second bandpass circuit 23 may be electrically connected to the same point on the first radiator 11 in parallel with the first matching circuit M1, or the second bandpass circuit 23 is a part of the first matching circuit M1 (refer to FIG. 14 ).
  • FIG. 9 is a schematic diagram of the antenna of the first feeding system 20 in operation.
  • the first feeding system 20 excites the first radiator 11 to generate at least one resonance mode.
  • the frequency band supported by this resonance mode is located in the LB frequency band.
  • the current corresponding to the resonant mode n generated by the first radiator 11 excited by the first feeding system 20 is mainly distributed from the first ground terminal 111 to the first radiator 11. between the first coupled ends 112 . It can also be expressed as, the current density generated by the excitation signal of the first feeding system 20 on the radiator 10 is mainly distributed from the first ground terminal 111 to the first radiator 11 of the first radiator 11 . between a coupled end 112 .
  • the current corresponding to the resonant mode generated by the first feeding system 20 exciting the radiator 10 is mainly distributed from the first ground terminal 111 to the first coupling terminal of the first radiator 11 Between 112 means that a relatively strong current is distributed between the first ground terminal 111 and the first coupled terminal 112 of the first radiator 11, and it does not exclude that the first radiator 11 and Due to the coupling effect of the second radiator 12 , a small amount of current generated by the excitation signal of the first feeding system 20 on the first radiator 11 is distributed to the second radiator 12 .
  • the present application does not limit the direction of the resonant current.
  • the resonant mode is characterized by the fact that the antenna module 100 has a higher efficiency of transmitting and receiving electromagnetic waves at and near the resonant frequency.
  • the resonant frequency is the resonant frequency of the resonant mode, and the resonant frequency and its vicinity form a frequency band supported or covered by the resonant mode.
  • the absolute value of the return loss value is greater than or equal to 5dB (for example only, and cannot be used as the application for the limitation of the return loss value of higher efficiency) as having a higher The reference value of the electromagnetic wave transceiving efficiency.
  • a set of frequencies whose absolute value of the return loss value in a resonance mode is greater than or equal to 5 dB is taken as the frequency band supported by the resonance mode.
  • the first feeding system 20 excites the resonance mode generated by the first radiator 11 so that the resonance current mainly works from the first ground terminal 111 of the first radiator 11 to the first
  • the 1/4 wavelength mode can be understood as the effective electrical length from the first ground end 111 to the first coupling end 112 of the first radiator 11 is about the center of the resonance mode
  • the frequency corresponds to 1/4 times of the medium wavelength (wavelength in the medium).
  • This description is an explanation for the easy understanding of the term, but it cannot be used as the first ground terminal 111 to the first radiator 11.
  • a limitation of the length of the coupling end 112 the resonance mode generated by the first radiator 11 excited by the first feeding system 20 may also be a higher-order mode in which the resonance current mainly works on the first radiator 11, For example, 1/2 wavelength mode, 3/4 wavelength mode and so on.
  • the first matching circuit M1 further includes a circuit having a band-rejection characteristic for the electromagnetic wave signal of the second frequency band, so as to realize the function of filtering the electromagnetic wave signal of the second frequency band, while the electromagnetic wave signal of the first frequency band The signal has no influence, so that the first feeding system 20 excites the first radiator 11 to send and receive the electromagnetic wave signal of the first frequency band.
  • the second connection point B2 is the first feeding point A1
  • the second bandpass circuit 23 is a part of the first matching circuit M1 (see FIG. 14 ).
  • the second bandpass circuit 23 may also serve as a circuit for realizing the function of the electromagnetic wave signal in the second frequency band.
  • the antenna module 100 further includes a first adjustment circuit T1.
  • One end of the first adjusting circuit T1 is electrically connected to the first radiator 11 , and the other end of the first adjusting circuit T1 is electrically connected to the reference ground GND.
  • the first adjusting circuit T1 is used for adjusting the frequency band of the electromagnetic wave signal in the first frequency band.
  • the present application does not specifically describe the position where the first regulating circuit T1 is electrically connected to the first radiator 11 .
  • a first adjustment point B3 for electrically connecting the first adjustment circuit T1 is defined between the first ground end 111 and the first coupling end 112 of the first radiator 11 .
  • the first adjustment point B3 is located on the first radiator 11 and is close to a current intensity point on the first radiator 11 .
  • the distance between the first regulation point B3 and the first ground terminal 111 is greater than the distance between the first regulation point B3 and the first coupling terminal 112, so that the first regulation circuit T1 adjusts the position of the frequency band supported by the first radiator 11 within a certain range.
  • the first adjustment circuit T1 includes at least one of a variable capacitor and a plurality of switch selection circuits.
  • the switch selection circuit includes at least one of a combination of switches and inductors, a combination of switches and capacitors, and a combination of switches and inductors and capacitors.
  • the first adjusting circuit T1 realizes switching between different frequency bands by controlling the on-off of the switch or adjusting the variable capacitance to switch different impedances to ground.
  • the first regulating circuit T1 includes a SPDT switch 51 , a first lumped element 52 electrically connected to the reference ground GND, and a second lumped element 53 electrically connected to the reference ground GND.
  • both the first lumped element 52 and the second lumped element 53 include an inductor, or a capacitor, or a combination of an inductor and a capacitor.
  • the combination of the above-mentioned inductance and capacitance of the lumped elements may be the combination of FIG. 17 to FIG. 24 .
  • the first lumped element 52 and the second lumped element 53 have different impedances to the ground for the electromagnetic wave signal in the first frequency band.
  • the SPDT switch 51 and the two lumped elements 52, 53 are only for illustration, and the present application is not limited to two lumped elements and the SPDT switch, and may be two independent switches; in addition, the lumped The number of elements may be three, four, etc.
  • the antenna module 100 further includes a controller (not shown), and the controller is electrically connected to the first regulating circuit T1.
  • the controller controls the switch of the first regulating circuit T1 to switch to electrically connect different lumped elements, so as to realize different impedances for the electromagnetic wave signal of the first frequency band to the ground, and then realize the electromagnetic wave signal for the first frequency band Position adjustment of the frequency band of the signal. For example, when the switched inductance value is smaller, the frequency band of the electromagnetic wave signal of the first frequency band is shifted toward the high frequency end more; when the switched capacitance value is larger, the frequency band of the electromagnetic wave signal of the first frequency band is towards The more the low frequency end is shifted.
  • the first adjustment point B3 is the first feed point A1
  • one end of the first adjustment circuit T1 is electrically connected to the first feed point A1, so as to reduce the first
  • the electrical connection points on the radiator 11 can reduce the number of electrical connection parts such as shrapnel in actual products.
  • the first adjusting circuit T1 is a part of the first matching circuit M1, so that the first adjusting circuit T1 can be used in the preparation process of the first matching circuit M1 Compared with the independent setting of the first regulating circuit T1, the number of electrical connection points on the first radiator 11 can be reduced, the centralized setting of the circuit can be realized, and the first regulating circuit T1 can also be realized in the Function multiplexing in the first matching circuit M1, for example, some capacitors or inductances in the first adjusting circuit T1 can also be used for frequency selection or tuning in the first matching circuit M1.
  • the first adjusting circuit T1 can be used as a serial branch or a parallel branch of the first matching circuit M1. Referring to Fig. 13 and Fig.
  • the second bandpass circuit 23 is also a part of the first matching circuit M1, so as to further reduce the number of electrical connection points on the first radiator 11 and realize the module of the circuit Optimized settings, improve the multiplexing rate of inductors and capacitors in each circuit, etc.
  • FIG. 14 is a schematic diagram of the first adjustment circuit T1 as a parallel branch of the first matching circuit M1 .
  • the second bandpass circuit 23 also serves as a parallel branch of the first matching circuit M1.
  • the first regulating circuit T1 includes four switches (SW1-SW4) and four regulating branches (P1-P4), and each switch is electrically connected to one regulating branch.
  • the first adjustment branch P1 , the second adjustment branch P2 and the third adjustment branch P3 are all inductors electrically connected to the reference ground GND, wherein the inductance values in different adjustment branches are different.
  • the fourth regulating branch P4 is a capacitor electrically connected to the reference ground GND.
  • the first adjusting circuit T1 is a part of the first matching circuit M1, and serves as a parallel branch in the first matching circuit M1.
  • the first matching circuit M1 also includes a first tuning circuit 22 .
  • One end of the first tuning circuit 22 is electrically connected to the first feeding point A1 , and the other end of the first tuning circuit 22 is electrically connected to the first signal source 21 .
  • the first tuning circuit 22 is used for tuning the resonant frequency point and frequency band width of the electromagnetic wave signal in the first frequency band.
  • the first tuning circuit 22 includes a fourth capacitor C4 , a fifth capacitor C5 , a sixth capacitor C6 , a seventh capacitor C7 , a fifth inductor L5 and a sixth inductor L6 .
  • One end of the fourth capacitor C4 is electrically connected to the first feeding point A1, the other end of the fourth capacitor C4 is electrically connected to one end of the fifth capacitor C5, and the other end of the fifth capacitor C5 is electrically connected to Connect one end of the sixth capacitor C6, one end of the fifth inductor L5, and one end of the sixth inductor L6, the other end of the sixth capacitor C6 is electrically connected to the reference ground GND, and the fifth inductor L5
  • the other end of the sixth inductor L6 is electrically connected to the reference ground GND, the other end of the sixth inductor L6 is electrically connected to the first signal source 21 and one end of the seventh capacitor C7, and the other end of the seventh capacitor C7 is electrically connected to Connect to the reference ground GND.
  • the above is only an example of the first tuning circuit 22 , and the resonant elements in the first tuning circuit 22 can also refer to the combination of the resonant elements in FIG. 17 to FIG. 24 .
  • FIG. 15 is a schematic diagram of the first adjusting circuit T1 serving as a string branch of the first matching circuit M1 .
  • the first adjusting circuit T1 is a part of the first matching circuit M1.
  • the first regulating circuit T1 includes four switches, wherein the three switches are respectively electrically connected to the three regulating branches, and the fourth switch connects the above three switches in series with the capacitor in the first matching circuit M1.
  • the three adjustment branches are grounding inductances with three different inductance values. By switching four switches, different combinations of capacitance and inductance (that is, LC resonant circuits) are formed to form different electromagnetic wave signals in the first frequency band.
  • the impedance to the ground realizes that the electromagnetic wave signal of the first frequency band is shifted toward the low frequency end or toward the high frequency end.
  • FIG. 16 is a schematic diagram of switching between different frequency bands of the electromagnetic wave signal of the first frequency band by the first adjustment circuit T1 .
  • the first frequency band is tuned between the B5 frequency band, the B8 frequency band, and the B28 frequency band as an example.
  • the B5 frequency band, the B8 frequency band, and the B28 frequency band are only for the electromagnetic wave signal of the first frequency band to be able to operate at a low frequency. Examples of shifting toward the high frequency end or toward the low frequency end within the range do not limit the electromagnetic wave signal in the first frequency band to be the B5 frequency band, or the B8 frequency band, or the B28 frequency band.
  • the electromagnetic wave signal in the first frequency band may also be adjusted to cover the B20 frequency band. It can be seen from FIG. 15 that by setting the first adjusting circuit T1, the electromagnetic wave signal in the first frequency band can be shifted toward the high frequency end or toward the low frequency end in the low frequency range, thereby realizing the adjustment of the first frequency band Broadband coverage to meet low-frequency coverage needs.
  • the first adjusting circuit T1 By setting the first adjusting circuit T1 on the first radiator 11, the first adjusting circuit T1 switches the electromagnetic wave signal of the first frequency band in different frequency bands, so as to improve the low frequency band Coverage within the range, so that the antenna module 100 can support many application frequency bands in the low frequency band, and then support frequency bands used in different places.
  • the antenna module 100 and the electronic device 1000 where the antenna module 100 is located Mobile communication signals that can be used worldwide and support different operators.
  • the first adjusting circuit T1 When the first adjusting circuit T1 is installed in the first matching circuit M1, other parts of the first matching circuit M1 may also include the above-mentioned variable capacitance, multiple switch selection circuits, etc. to realize switching.
  • the first matching circuit M1 does not include the above-mentioned first adjusting circuit T1, the first matching circuit M1 may include the above-mentioned variable capacitor, multiple switch selection circuits, etc. to realize switching.
  • the second matching circuit M2 may also use the above-mentioned variable capacitance, multiple switch selection circuits, etc. to realize switching.
  • the matching circuit provided in this application (for example, at least one of the first matching circuit M1 and the second matching circuit M2) has a frequency selection filter circuit electrically connected to the reference ground GND, so as to realize the antenna mode Group 100 broadband matching with high isolation.
  • the frequency selection filter circuit is composed of one resonant device or multiple resonant devices, wherein the resonant device is a capacitor or an inductance.
  • the present application does not limit the number of resonant devices. Two of the multiple resonant devices can be combined in series or in parallel to form different resonant circuits. The following are examples of several combinations of two resonant devices, three resonant devices, and four resonant devices in conjunction with the accompanying drawings.
  • the frequency-selective filter circuit of the first matching circuit M1 can adjust the number of resonant devices and the electrical connection method according to actual needs.
  • the frequency selection filter circuit of the first matching circuit M1 includes a band-pass circuit formed by an inductor L00 connected in series with a capacitor C00.
  • the frequency selection filter circuit of the first matching circuit M1 includes a band stop circuit formed by parallel connection of an inductor L00 and a capacitor C00 .
  • the frequency selection filter circuit of the first matching circuit M1 includes a bandpass or bandstop circuit formed by an inductor L00 , a capacitor C01 and a capacitor C02 .
  • the inductor L00 is connected in parallel with the capacitor C01 , and the capacitor C02 is electrically connected to a node where the inductor L00 is electrically connected to the capacitor C01 .
  • the frequency selection filter circuit of the first matching circuit M1 includes a bandpass or bandstop circuit formed by a capacitor C00 , an inductor L01 and an inductor L02 .
  • the capacitor C00 is connected in parallel with the inductor L01
  • the inductor L02 is electrically connected to the node where the capacitor C00 is electrically connected to the inductor L01 .
  • the frequency selection filter circuit of the first matching circuit M1 includes a bandpass or bandstop circuit formed by an inductor L00 , a capacitor C01 and a capacitor C02 .
  • the inductor L00 is connected in series with the capacitor C01, and one end of the capacitor C02 is electrically connected to the first end of the inductor L00 not connected to the capacitor C01, and the other end of the capacitor C02 is electrically connected to one end of the capacitor C01 not connected to the inductor L00.
  • the frequency selection filter circuit of the first matching circuit M1 includes a bandpass or bandstop circuit formed by a capacitor C00 , an inductor L01 and an inductor L02 .
  • the capacitor C00 is connected in series with the inductor L01 , one end of the inductor L02 is electrically connected to one end of the capacitor C00 not connected to the inductor L01 , and the other end of the inductor L02 is electrically connected to one end of the inductor L01 not connected to the capacitor C00 .
  • the frequency selection filter circuit of the first matching circuit M1 includes a capacitor C01 , a capacitor C02 , an inductor L01 and an inductor L02 .
  • the capacitor C01 is connected in parallel with the inductor L01
  • the capacitor C02 is connected in parallel with the inductor L02
  • one end of the whole formed by the parallel connection of the capacitor C02 and the inductor L02 is electrically connected to one end of the whole formed by the parallel connection of the capacitor C01 and the inductor L01 .
  • the frequency selection filter circuit of the first matching circuit M1 includes a capacitor C01, a capacitor C02, an inductor L01, and an inductor L02.
  • the capacitor C01 and the inductor L01 are connected in series to form the first unit 101, and the capacitor C02 and the inductor L02 are connected in series to form the first unit 101.
  • Two units 102, and the first unit 101 and the second unit 102 are connected in parallel.
  • FIG. 25 is a schematic diagram of an equivalent antenna in which the second feeding system 40 encourages the radiator 10 to send and receive electromagnetic wave signals in the second frequency band.
  • FIG. 26 is an S-parameter curve diagram of the second feeding system 40 encouraging the radiator 10 to send and receive electromagnetic wave signals in the second frequency band.
  • the radiator 10 supports the first resonant mode a, the second resonant mode b, the third resonant mode c and the fourth resonant mode d under the excitation of the second feeding system 40 .
  • the current of the first resonant mode a is at least distributed between the second coupling end 121 and the second grounding end 122 of the second radiator 12 .
  • the current corresponding to the first resonant mode a (referred to as the first resonant current in this application) generated by the second feeding system 40 to excite the radiator 10 is mainly distributed in the second radiator 12.
  • the present application does not specifically limit the direction of the resonant current.
  • the first resonant current is mainly distributed between the second coupling end 121 and the second grounding end 122 of the second radiator 12, which means that the stronger current is distributed in the second radiator 12.
  • a small amount of first resonant current due to the coupling effect between the first radiator 11 and the second radiator 12 is not excluded. distributed in the first radiator 11.
  • the first resonance mode a includes a 1/4 wavelength mode of the second radiator 12 .
  • the first resonant mode a includes a 1/4 wavelength mode in which the first resonant current mainly works from the second coupling end 121 to the second grounding end 122 of the second radiator 12 .
  • the 1/4 wavelength mode can be understood as the effective electrical length from the second coupled end 121 to the second ground end 122 of the second radiator 12 is about the center of the resonance mode
  • the frequency corresponds to 1/4 times the wavelength of the medium (wavelength in the medium). This description is an explanation for easy understanding of the term, but it cannot be used as a limitation on the length of the second radiator 12 .
  • the resonant mode generated by the second feeding system 40 exciting the radiator 10 may also be a high-order mode in which the first resonant current mainly works on the second radiator 12, For example, 1/2 wavelength mode, 3/4 wavelength mode and so on.
  • the current in the second resonant mode b is at least distributed between the second connection point B2 and the first coupling end 112 and between the second coupling end 121 and the second feeding point A2 .
  • the current corresponding to the second resonant mode b (referred to as the second resonant current in this application) generated by the radiator 10 excited by the second feeding system 40 is mainly distributed from the second connection point B2 to Between the first coupling end 112 and between the second coupling end 121 and the second feeding point A2, the present application does not specifically limit the direction of the resonant current.
  • the second resonant current is mainly distributed between the second connection point B2 and the first coupling end 112 and between the second coupling end 121 and the second feeding point A2 means, Stronger current distribution is between the second connection point B2 and the first coupling end 112 and between the second coupling end 121 and the second feeding point A2, which does not exclude a small amount of second
  • the resonant current is distributed to other parts on the first radiator 11 and other parts on the second radiator 12 .
  • the second resonance mode b includes a 1/4 wavelength mode between the second connection point B2 of the first radiator 11 and the first coupling end 112 .
  • the second resonance mode b includes a 1/4 wavelength mode in which the second resonance current mainly operates from the second connection point B2 of the first radiator 11 to the first coupling end 112 .
  • the 1/4 wavelength mode can be understood as the effective electrical length from the second connection point B2 of the first radiator 11 to the first coupling end 112 is about the center of the resonance mode 1/4 times of the medium wavelength (wavelength in the medium) corresponding to the frequency. This description is an explanation for the easy understanding of the term, but it cannot be used as the second connection point B2 of the first radiator 11 to the first radiator.
  • the resonant mode generated by the second feeding system 40 to excite the radiator 10 may also be a high-order mode in which the second resonant current mainly works on the radiator 10, for example, 1 /2 wavelength mode, 3/4 wavelength mode, etc.
  • the electromagnetic wave signal of the second frequency band can pass through the second band-pass circuit at the second connection point B2.
  • the circuit 23 is connected to the reference ground GND, so as to form the current distribution of the second resonant current, thereby promoting the generation of the second resonant mode b.
  • the current of the third resonant mode c is at least distributed between the second coupling end 121 and the second feeding point A2.
  • the current corresponding to the third resonant mode c (referred to as the third resonant current in this application) generated by the second feeding system 40 to excite the radiator 10 is mainly distributed in the second radiator 12
  • the present application does not specifically limit the direction of the resonant current.
  • the third resonant current is mainly distributed between the second coupling end 121 of the second radiator 12 and the second feeding point A2, which means that the stronger current is distributed in the second feeding point A2.
  • a small amount of third The resonant current is distributed in other positions of the first radiator 11 and the second radiator 12 .
  • the third resonance mode c includes a 1/4 wavelength mode between the second coupling end 121 of the second radiator 12 and the second feeding point A2 .
  • the third resonance mode c includes a 1/4 wavelength mode in which the third resonance current mainly works from the second coupling end 121 of the second radiator 12 to the second feeding point A2.
  • the 1/4 wavelength mode can be understood as the effective electrical length from the second coupling end 121 of the second radiator 12 to the second feeding point A2 is approximately 1/4 times of the medium wavelength (wavelength in the medium) corresponding to the center frequency, this description is an explanation for easy understanding of the term, but it cannot be used as the second coupling end 121 of the second radiator 12 to the Definition of the length of the second feeding point A2.
  • the resonant mode generated by the radiator 10 excited by the second feeding system 40 may also be a higher-order mode in which the third resonant current mainly works on the radiator 10, for example, 1 /2 wavelength mode, 3/4 wavelength mode, etc.
  • the length 121 from the second feeding point A2 to the second coupling end is equal to the third frequency band (UHB frequency band), thereby generating the third resonance mode c covering the third frequency band.
  • the current of the fourth resonant mode d is at least distributed between the first connection point B1 to the first coupling end 112 and between the second coupling end 121 and the second feeding point A2.
  • the current corresponding to the fourth resonant mode d generated by the radiator 10 excited by the second feeding system 40 (referred to as the fourth resonant current in this application) is mainly distributed to the first coupling end 112 and the Between the second coupling end 121 and the second feeding point A2, the application does not specifically limit the direction of the resonant current.
  • the fourth resonant current is mainly distributed to the first coupling end 112 and between the second coupling end 121 and the second feeding point A2 means that a stronger current is distributed to the Between the first coupling end 112 and the second coupling end 121 and the second feeding point A2, it does not rule out that a small amount of fourth resonant current is distributed in other positions of the first radiator 11 and the second feeding point A2. Other positions of the second radiator 12.
  • the fourth resonance mode d includes a 1/4 wavelength mode between the first connection point B1 of the first radiator 11 and the first coupling end 112 .
  • the fourth resonant mode d includes a 1/4 wavelength mode in which the fourth resonant current mainly works from the first connection point B1 of the first radiator 11 to the first coupling end 112 .
  • the 1/4 wavelength mode can be understood as the effective electrical length from the first connection point B1 of the first radiator 11 to the first coupling end 112 is about the center of the resonance mode 1/4 times of the medium wavelength (wavelength in the medium) corresponding to the frequency, this description is an explanation for the easy understanding of the term, but it cannot be used as the first connecting point B1 of the first radiator 11 to the second A limitation of the length of the coupling end 112 .
  • the resonant mode generated by the radiator 10 excited by the second feeding system 40 may also be a higher-order mode in which the fourth resonant current mainly works on the radiator 10, for example, 1 /2 wavelength mode, 3/4 wavelength mode, etc.
  • the electromagnetic wave signal of the third frequency band can pass through the first band-pass circuit at the first connection point B1.
  • the circuit 41 is connected to the reference ground GND, so as to form the current distribution of the third resonant current, thereby promoting the generation of the fourth resonant mode d.
  • the fourth resonance mode d covering the third frequency band is generated.
  • the resonance mode realizes efficient broadband coverage for the UHB frequency band.
  • the high-efficiency broadband coverage of the antenna module 100 in the N78 frequency band is improved by setting the length between the first connection point B1 and the first coupling end 112 to correspond to the N78 frequency band .
  • the order of the wavelength modes of the first resonance mode a, the second resonance mode b, the third resonance mode c, and the fourth resonance mode d is based on the radiators that are mainly working on each resonance current 10 to determine the length. It can be seen from the wavelength modes of the first resonance mode a, the second resonance mode b, the third resonance mode c, and the fourth resonance mode d that the first resonance mode a, the The second resonance mode b, the third resonance mode c, and the fourth resonance mode d are all 1/4 wavelength modes, where the 1/4 wavelength mode is also called the fundamental mode, and the fundamental mode is a high-efficiency mode state, which can achieve high efficiency and wide coverage in the MHB+UHB frequency band.
  • the first band-pass circuit 41 By setting the first band-pass circuit 41 to be electrically connected to the first connection point B1, by setting the first band-pass circuit 41 to conduct the mobile communication signal of the second frequency band to the reference ground GND, In combination with the above setting, the second bandpass circuit 23 is electrically connected to the first feeding point A1, and the second bandpass circuit 23 is set to conduct the mobile communication signal of the second frequency band to the reference ground GND, to realize that the mobile communication signal of the second frequency band can pass through the first feeding point A1, the second bandpass circuit 23 to the reference ground GND, and can also pass through the first connection point B1,
  • the first bandpass circuit 41 is connected to the reference ground GND, and a return path is added; through the above-mentioned current path planning for the electromagnetic wave signal (MHB+UHB frequency band) of the second frequency band, the second feeder
  • the electric system 40 excites the first radiator 11 and the second radiator 12 to generate the first resonance mode a, the second resonance mode b, the third resonance mode c and the fourth resonance mode
  • the second feeding system 40 multiplexes the mutually coupled first radiator 11 and the second radiator 12 to generate the above four resonant modes, for example, from the second resonant mode b.
  • the resonant current forms a current distribution (or a current density distribution) on both the first radiator 11 and the second radiator 12, and
  • the above four resonance modes are all located in the MHB+UHB frequency band to achieve full coverage in the MHB+UHB frequency band.
  • two modes are located in the UHB frequency band to improve the coverage of the antenna module 100 for the UHB frequency band.
  • the UHB frequency band is the N78 frequency band
  • the broadband coverage requirements for the N78 frequency band (3300 ⁇ 4100MHz) can be realized.
  • the UHB frequency band may also be other frequency bands, such as the N79 frequency band.
  • FIG. 27 shows the resonant mode n covering low frequencies and the first resonant mode n covering the MHB+UHB frequency band generated by the radiator 10 excited by the first feed system 20 and the second feed system 40.
  • S1,1 is the S-parameter curve covering the LB frequency band.
  • S2, 2 is the S-parameter curve of the MHB+UHB frequency band.
  • the antenna module 100 provided by the present application has a good coverage in the LB frequency band + MHB + UHB frequency band, especially in the UHB frequency band, forming two resonance modes, Realize the broadband coverage requirements for the N78 frequency band (3300 ⁇ 4100MHz).
  • FIG. 28 is an isolation curve diagram of the antenna module 100 in one of the states provided by the embodiment of the present application. It can be seen from the figure that the S parameters between two adjacent signal sources are all below -15dB, indicating that there is a good isolation between two adjacent signal sources.
  • FIG. 29 is an efficiency diagram of the antenna module 100 provided by the embodiment of the present application.
  • S01 and S02 are respectively the efficiency curves with the first bandpass circuit 41 and without the first bandpass circuit 41 .
  • the antenna module 100 provided with the first bandpass circuit 41 has two resonances, and the bandwidth is increased.
  • the efficiency at the first point of curve S01 and the second point of curve S02 is about 4GHz, and the efficiency of the antenna module 100 with the first bandpass circuit 41 at about 4GHz is greater than that without the first bandpass circuit 41.
  • the efficiency of the antenna module 100 of the bandpass circuit 41 is about 4 GHz.
  • the efficiency of the antenna module 100 with the first bandpass circuit 41 in the 3300-4100MHz frequency band is greater than that of the antenna module 100 without the first bandpass circuit 41 in the 3300-4100MHz frequency band. efficiency. In other words, after the first bandpass circuit 41 is provided, the bandwidth increases, and the efficiency in the 3300-4100 MHz frequency band increases.
  • the second matching circuit M2 is used for tuning the center frequency and bandwidth of the electromagnetic wave signal of the second frequency band (MHB+UHB frequency band).
  • the structure of the second matching circuit M2 provided in the present application will be illustrated below with reference to the accompanying drawings.
  • the second matching circuit M2 provided in this application includes but not limited to the following implementation manners.
  • the second matching circuit M2 includes a seventh inductor L7 , an eighth inductor L8 , a ninth inductor L9 , an eighth capacitor C8 , a ninth capacitor C9 , a tenth capacitor C10 and an eleventh capacitor C11 .
  • One end of the seventh inductance L7 is electrically connected to the second feeding point A2, and the other end of the seventh inductance L7 is electrically connected to one end of the eighth inductance L8, one end of the eighth capacitor C8 and the One end of the ninth capacitor C9, the other end of the eighth inductor L8, and the other end of the eighth capacitor C8 are all electrically connected to the reference ground GND, and the other end of the ninth capacitor C9 is electrically connected to the tenth One end of the capacitor C10, the other end of the tenth capacitor C10 is electrically connected to one end of the ninth inductance L9 and one end of the second signal source 31, and the other end of the ninth inductance L9 is electrically connected to the tenth One end of a capacitor C11, and the other end of the eleventh capacitor C11 are electrically connected to the reference ground GND.
  • the second matching circuit M2 By designing the above-mentioned second matching circuit M2, to tune the center frequency and bandwidth of the electromagnetic wave signal in the second frequency band, so as to achieve the first resonance mode a, the second resonance mode b, the The resonant frequency and bandwidth of the third resonant mode c and the fourth resonant mode d are tuned to realize the wide coverage of the antenna module 100 in the MHB+UHB frequency band.
  • the antenna module 100 further includes a second adjustment circuit T2 with one end electrically connected to the reference ground GND.
  • the other end of the second adjusting circuit T2 is electrically connected to the second radiator 12 or electrically connected to the second matching circuit M2.
  • the second adjusting circuit T2 is used for adjusting the frequency band of the electromagnetic wave signal (MHB+UHB frequency band) of the second frequency band.
  • the second adjustment circuit T2 includes at least one of a variable capacitor and a plurality of switch selection circuits.
  • the switch selection circuit includes at least one of a combination of switches and inductors, a combination of switches and capacitors, and a combination of switches and inductors and capacitors.
  • the second adjusting circuit T2 realizes switching between different frequency bands by controlling the on-off of the switch or adjusting the variable capacitance to switch different impedances to ground.
  • the second regulating circuit T2 includes a single pole double throw switch and a plurality of lumped elements electrically connected to the reference ground.
  • the lumped element includes an inductor, or a capacitor, or a combination of an inductor and a capacitor, and the like.
  • the combination of the above-mentioned inductance and capacitance of the lumped elements may be the combination of FIG. 17 to FIG. 24 .
  • Different lumped elements have different impedances to the ground for the electromagnetic wave signals in the second frequency band.
  • the antenna module 100 further includes a controller (not shown), and the controller is electrically connected to the second regulating circuit T2.
  • the controller controls the switch of the second regulating circuit T2 to switch to electrically connect different lumped elements, so as to realize different impedances for the electromagnetic wave signal of the second frequency band to the ground, and then realize the electromagnetic wave signal of the second frequency band Position adjustment of the frequency band of the signal. For example, when the switched inductance value is smaller, the frequency band of the electromagnetic wave signal of the second frequency band is shifted toward the high frequency end more; when the switched capacitance value is larger, the frequency band of the electromagnetic wave signal of the second frequency band is towards The more the low frequency end is shifted.
  • one end of the second regulating circuit T2 is electrically connected to the second feeding point A2, so as to reduce the electrical connection points on the second radiator 12.
  • electrical connectors such as The number of shrapnel.
  • the second adjusting circuit T2 is a part of the second matching circuit M2, thus, the second adjusting circuit T2 can be manufactured during the preparation process of the second matching circuit M2, relative to the
  • the second adjustment circuit T2 is set independently, which can reduce the number of electrical connection points on the second radiator 12, realize the centralized setting of the circuit, and also realize the connection of the second adjustment circuit T2 in the second matching circuit M2.
  • Function multiplexing for example, some capacitors or inductors in the second adjusting circuit T2 can also be used for frequency selection or tuning in the second matching circuit M2.
  • the second adjusting circuit T2 can be used as a serial branch or a parallel branch of the second matching circuit M2.
  • the function of the second regulating circuit T2 is similar to that of the first regulating circuit T1. Moreover, the structure of the second regulating circuit T2 is also similar to that of the first regulating circuit T1, including at least one of a variable capacitor and a plurality of switch selection circuits. Wherein, for the switch selection circuit, reference may be made to the description in the first regulation circuit T1 , which will not be repeated here.
  • the adjustment principle of the second adjustment circuit T2 for the electromagnetic wave signal of the second frequency band (MHB+UHB frequency band) is the same as the adjustment principle of the first adjustment circuit T1 for the electromagnetic wave signal of the first frequency band, by setting the Describe the second adjustment circuit T2, so that the second adjustment circuit T2 switches the electromagnetic wave signal (MHB+UHB frequency band) of the second frequency band in different frequency bands, so as to improve the coverage for the MHB+UHB frequency band , so that the antenna module 100 can support many application frequency bands of the MHB+UHB frequency band, and further support frequency bands used in different places, the antenna module 100 and the electronic device 1000 where the antenna module 100 is located can be in Mobile communication signals that are used worldwide and support different operators.
  • the first feed system 20 and the second feed system 40 excite the radiator 10 to achieve coverage of LB+MHB+UHB mobile communication signals, and then combine the first feed system 20 and the
  • the first adjustment circuit T1 (including a switch selection circuit or a variable capacitor) that can adjust the movement of the frequency band is set in the second feed system 40 to adjust the position of the first frequency band in the LB frequency band, and the second adjustment circuit T2 adjusts the position of the second frequency band in the MHB+UHB frequency band, so that the frequency band that can be covered by the antenna module 100 increases, so as to improve the full frequency band of the low frequency band, mid-high frequency band and ultra-high frequency band of mobile communication signals
  • the coverage rate can not only guarantee the CA/ENDC of the LB+MHB+UHB frequency band, but also further realize the coverage of the UHB-N78 frequency band dual-band wide frequency band (3300 ⁇ 4100MHz).
  • the antenna module 100 provided in the embodiment of the present application, by setting the first feeding system 20 and the second feeding system 20 on the mutually coupled first radiator 11 and the second radiator 12 system 40, wherein the excitation current of the first feeding system 20 forms a high-efficiency fundamental mode on the first radiator 11 to send and receive electromagnetic wave signals in the first frequency band;
  • the matching circuit M1 is designed to set the second bandpass circuit 23 that conducts the electromagnetic wave signal (MHB+UHB frequency band) of the second frequency band, and designs the second matching circuit M2 to set the conduction of the The mobile communication signal of the second frequency band, so that the excitation current of the feed system is grounded through the first feed point A1, and the excitation current of the second feed system 40 is grounded through the first feed point A1, form a specific current path, and at the same time excite the first radiator 11 and the second radiator 12 to generate the first resonance mode a and the second resonance mode b that support the electromagnetic wave signal of the second frequency band , the third resonant mode c and the fourth resonant mode d,
  • the antenna module 100 provided in the second embodiment of the present application will be illustrated below with reference to the accompanying drawings.
  • the antenna module 100 provided in this embodiment is based on the antenna module 100 provided in the first embodiment, and the antenna module 100 further includes a third radiator 13 .
  • the third radiator 13 is electrically connected to the second matching circuit M2.
  • the third radiator 13 is a radiator of a flexible circuit board, or a radiator directly formed by laser, or a radiator formed directly by printing.
  • the third radiator 13 is used for transmitting and receiving electromagnetic wave signals in a fourth frequency band under the excitation of the second feeding system 40 , and the fourth frequency band range is within the second frequency band range.
  • the fourth frequency band is a UHB frequency band.
  • the effective electrical length of the third radiator 13 corresponds to the UHB frequency band, so that the third radiator 13 can generate at least one mode in the UHB frequency band, and combined with the second feeding system 40 to excite At least one mode generated by the first radiator 11 and the second radiator 12 in the N78 frequency band, so that the antenna module 100 generates at least two modes in the UHB frequency band, the at least two modes
  • the resonant frequency has a certain interval to form a wide coverage in the UHB frequency band and improve the coverage of the antenna module 100 in the UHB frequency band.
  • the fourth frequency band may be N78 frequency band.
  • This embodiment is applied to the antenna module 100 provided in the first embodiment, the addition of the third radiator 13 can make the second feeding system 40 excite the first radiator 11, the second The three resonance modes generated by the two radiators 12 in the N78 frequency band further increase the coverage of the N78 frequency band.
  • this embodiment can be applied to an antenna module without the first bandpass circuit 41, and the third radiator 13 in combination with the second feeding system 40 excites the first radiator 11, the The two resonance modes generated by the second radiator 12 in the N78 frequency band increase the coverage of the N78 frequency band.
  • the antenna form of the third radiator 13 may be the same as or different from those of the first radiator 11 and the second radiator 12 .
  • the first radiator 11 and the second radiator 12 are antennas of the metal frame 310, and the third radiator 13 can be arranged in the casing 300, on the one hand, it is convenient to be close to all
  • the second signal source 31 reduces the feeding path and avoids interference with the installation position of the second radiator 12.
  • the frequency band supported by the third radiator 13 is relatively high, the The size of the third radiator 13 is relatively reduced, so the space occupied by the third radiator 13 in the casing 300 is relatively small.
  • the third radiator 13 may be in the form of FPC (flexible circuit board) or LDS (laser direct structuring), but not limited to these two, so that the thickness of the third radiator 13 is relatively small, Light and thin, forming a flexible and bendable form, so as to be arranged in a narrow space or a curved space in the housing 300 , so as to improve the compactness of the devices in the electronic device 1000 .
  • FPC flexible circuit board
  • LDS laser direct structuring
  • the antenna module 100 further includes a third matching circuit M3.
  • the third matching circuit M3 is electrically connected between the second matching circuit M2 and the second signal source 31 .
  • the third matching circuit M3 is used for tuning the resonant frequency and bandwidth of the electromagnetic wave signal in the fourth frequency band.
  • Fig. 33 the equivalent antenna form of the second signal source 31 obtained by the second radiator 12 and the third radiator 13 under the excitation of the second feeding system 40 is shown in Fig. 33 shown.
  • FIG. 34 is an S-parameter curve diagram of setting the third radiator 13 in the antenna module without the first bandpass circuit 41 .
  • the second signal source 31 excites the third radiator 13 to generate the fifth resonance mode j through the third matching circuit M3 and the second matching circuit M2.
  • the fifth resonance mode j includes the 1/4 wavelength mode of the third radiator 13 .
  • the first resonant mode a, the second resonant mode b, the third resonant mode c, and the fifth resonant mode j form four resonant modes, so as to realize the full range of the antenna module 100 in the MHB+UHB frequency band. Frequency band coverage.
  • disposing the third radiator 13 in the antenna module provided with the first bandpass circuit 41 can generate at least five resonant modes, which are not shown here.
  • the present application does not specifically limit the structure of the third matching circuit M3, and several implementations are described below as examples.
  • the specific structure of the third matching circuit M3 includes but is not limited to the following implementations.
  • the third matching circuit M3 includes a twelfth capacitor C12. One end of the twelfth capacitor C12 is electrically connected to the second signal source 31 , and the other end of the twelfth capacitor C12 is electrically connected to the third radiator 13 .
  • the third matching circuit M3 includes a twelfth capacitor C12 and a thirteenth capacitor C13.
  • One end of the twelfth capacitor C12 is electrically connected to the second signal source 31, and the other end of the twelfth capacitor C12 is electrically connected to the third radiator 13 and one end of the thirteenth capacitor C13, so The other end of the thirteenth capacitor C13 is electrically connected to the reference ground GND.
  • the third matching circuit M3 includes a twelfth capacitor C12 and the tenth inductor L10.
  • One end of the twelfth capacitor C12 is electrically connected to the second signal source 31, and the other end of the twelfth capacitor C12 is electrically connected to the third radiator 13 and one end of the tenth inductor L10, the The other end of the tenth inductor L10 is electrically connected to the reference ground GND.
  • the third matching circuit M3 provided in the above embodiments can all realize the tuning of the resonant frequency and bandwidth of the electromagnetic wave signal in the fourth frequency band.
  • Resonant elements include capacitors or inductors.
  • FIG. 38 is an efficiency diagram of the antenna module 100 provided by the embodiment of the present application.
  • S03 and S04 are respectively the efficiency curves with the third radiator 13 and without the third radiator 13 .
  • the efficiency at the first point of the curve S03 and the second point of the curve S04 is about 3.95 GHz
  • the efficiency of the antenna module 100 with the third radiator 13 at about 3.95 GHz is greater than that without the third radiator 13
  • the efficiency of the antenna module 100 with three radiators 13 is around 3.95 GHz.
  • the efficiency of the antenna module 100 with the third radiator 13 in the 3300-4100 MHz frequency band is greater than the efficiency of the antenna module 100 without the third radiator 13 in the 3300-4100 MHz frequency band. In other words, after the third radiator 13 is provided, the bandwidth increases, and the efficiency in the frequency band of 3300-4100 MHz increases.
  • the antenna module 100 provided in the embodiment of the present application, by setting the first feeding system 20 and the second feeding system 20 on the mutually coupled first radiator 11 and the second radiator 12 system 40, wherein the excitation current of the first feeding system 20 forms a high-efficiency fundamental mode on the first radiator 11 to send and receive electromagnetic wave signals in the first frequency band;
  • the matching circuit M1 is designed to set the second bandpass circuit 23 that conducts the electromagnetic wave signal (MHB+UHB frequency band) of the second frequency band, and designs the second matching circuit M2 to set the conduction of the The mobile communication signal of the second frequency band, so that the excitation current of the feed system is grounded through the first feed point A1, and the excitation current of the second feed system 40 is grounded through the first feed point A1, form a specific current path, and at the same time excite the first radiator 11 and the second radiator 12 to generate the first resonance mode a and the second resonance mode b that support the electromagnetic wave signal of the second frequency band , the third resonant mode c and the fourth resonant mode d,
  • the electronic device 1000 provided in this application includes the antenna module 100 described in any one of the above implementation manners.
  • the above-mentioned antenna module 100 is set in the electronic device 1000, and the electronic device 1000 is taken as a mobile phone as an example.
  • the present application does not limit the specific position where the radiator 10 of the antenna module 100 is installed in the electronic device 1000 .
  • the radiator 10 of the antenna module 100 is integrated in the housing 300 , or is disposed on the surface of the housing 300 , or is disposed in a space surrounded by the housing 300 .
  • the first feeding system 20 and the second feeding system 40 are disposed on the circuit board of the electronic device 1000 .
  • the forming manner of the radiator 10 in the electronic device 1000 includes but not limited to the following embodiments.
  • the radiator 10 is integrated with the frame 310 of the casing 300 .
  • the housing 300 of the electronic device 1000 has the conductive frame 310 (eg, the metal frame 310 ).
  • At least part of the first radiator 11 and at least part of the second radiator 12 of the antenna module 100 are integrated with the conductive frame 310 .
  • the frame 310 is made of metal.
  • the radiator 10 and the frame 310 are integrated into one body.
  • the coupling gap 113 between the radiators 10 is filled with insulating material.
  • the radiator 10 can also be integrated with the rear cover 320 . In other words, the radiator 10 is integrated as a part of the casing 300 .
  • the radiator 10 is formed on the surface of the frame 310 (for example, the inner surface or the outer surface of the frame 310 ).
  • the basic form of the radiator 10 includes, but is not limited to, patching the radiator 10, forming the radiator 10 by laser direct structuring (Laser Direct Structuring, LDS), printing direct structuring (Print Direct Structuring, PDS), etc.
  • the material of the frame 310 can be a non-conductive material (non-shielding material for electromagnetic wave signals).
  • the radiator 10 can also be disposed on the surface of the rear cover 320 .
  • the radiator 10 is disposed on a flexible circuit board, a rigid circuit board or other carrier boards.
  • the radiator 10 can be integrated on a flexible circuit board, and the flexible circuit board is pasted on the inner surface of the middle frame 340 by glue or the like.
  • the part corresponding to the radiator 10 is
  • the material of the frame 310 can be a non-conductive material.
  • the radiator 10 can also be disposed on the inner surface of the rear cover 320 .
  • the first radiator 11 is integrated with the metal frame 310
  • the second radiator 12 is integrated with the metal frame 310 .
  • the third radiator 13 of the antenna module 100 is located in the casing 300 .
  • the third radiator 13 of the antenna module 100 is integrated into the flexible circuit board, or directly formed in the housing 300 by laser, or directly formed in the housing 300 by printing, so that the The third radiator 13 is close to the second feeding system 40 .
  • the third radiator 13 is integrated into the flexible circuit board, or directly molded into the housing 300 by laser. , or directly formed in the housing 300 by printing, on the one hand, it is convenient for the third radiator 13 to be close to the second signal source 31, reducing the feeding path, and also avoiding the contact between the third radiator 13 and the second signal source 31.
  • the installation positions of the second radiator 12 interfere with each other.
  • the frequency band supported by the third radiator 13 is relatively high, the size of the third radiator 13 is relatively reduced, so the third radiator The space occupied by the body 13 disposed in the housing 300 is relatively small.
  • the third radiator 13 is integrated into the flexible circuit board, or directly formed in the housing 300 by laser, or directly formed in the housing 300 by printing, so that the third radiator
  • the thickness of 13 is relatively small, light and thin, forming a flexible and bendable form, so as to be arranged in a narrow space or a curved space in the housing 300 , and improve the compactness of the devices in the electronic device 1000 .

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Abstract

La présente demande concerne un module d'antenne et un dispositif électronique. Le module d'antenne comprend un radiateur, un premier système d'alimentation, un premier circuit passe-bande et un second système d'alimentation, le radiateur comprend un premier radiateur et un second radiateur ; il existe un espace de couplage entre le premier radiateur et le second radiateur ; une première borne de mise à la terre du premier radiateur et une seconde borne de mise à la terre du second radiateur sont toutes deux connectées électriquement à une masse de référence ; le premier système d'alimentation est électriquement connecté à un premier point d'alimentation du premier radiateur, et est utilisé pour exciter le radiateur pour envoyer et recevoir des signaux d'ondes électromagnétiques d'une première bande de fréquences ; le second système d'alimentation est électriquement connecté à un second point d'alimentation du second radiateur, et est utilisé pour exciter le radiateur pour envoyer et recevoir des signaux d'ondes électromagnétiques d'une deuxième bande de fréquences ; la fréquence minimale de la deuxième bande de fréquences est supérieure à la fréquence maximale de la première bande de fréquences ; et le premier circuit passe-bande est électriquement connecté entre un premier point de connexion du premier radiateur et la masse de référence, et est utilisé pour conduire des signaux d'ondes électromagnétiques d'une troisième bande de fréquences vers la masse de référence. Au moyen du module d'antenne et du dispositif électronique selon la présente demande, le taux de couverture d'un signal d'onde électromagnétique peut être amélioré.
PCT/CN2022/091358 2021-06-30 2022-05-07 Module d'antenne et dispositif électronique WO2023273604A1 (fr)

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