WO2022017017A1 - Appareil d'antenne et dispositif électronique - Google Patents

Appareil d'antenne et dispositif électronique Download PDF

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Publication number
WO2022017017A1
WO2022017017A1 PCT/CN2021/098521 CN2021098521W WO2022017017A1 WO 2022017017 A1 WO2022017017 A1 WO 2022017017A1 CN 2021098521 W CN2021098521 W CN 2021098521W WO 2022017017 A1 WO2022017017 A1 WO 2022017017A1
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WO
WIPO (PCT)
Prior art keywords
antenna
field communication
near field
excitation current
differential
Prior art date
Application number
PCT/CN2021/098521
Other languages
English (en)
Chinese (zh)
Inventor
黄武鑫
李偲
张盛强
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202010707001.5A external-priority patent/CN113964551A/zh
Priority claimed from CN202021450003.2U external-priority patent/CN212412212U/zh
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2022017017A1 publication Critical patent/WO2022017017A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them

Definitions

  • the present application relates to the field of communication technologies, and in particular, to an antenna device and an electronic device.
  • NFC Near Field Communication
  • Embodiments of the present application provide an antenna device and an electronic device, which can enable the electronic device to support near-field communication of multiple frequency bands, thereby improving the communication adaptability of the electronic device.
  • an antenna device including:
  • a near field communication chip comprising a first differential signal terminal and a second differential signal terminal, the first differential signal terminal and the second differential signal terminal are used for providing differential excitation current;
  • a first antenna electrically connected to the first differential signal terminal, the first antenna is used for transmitting the differential excitation current and radiating the near-field communication signal at the first near-field communication resonance frequency;
  • a second antenna electrically connected to the second differential signal terminal, the second antenna is used for transmitting the differential excitation current and radiating the near-field communication signal at the second near-field communication resonance frequency;
  • the first near field communication resonance frequency is different from the second near field communication resonance frequency.
  • an embodiment of the present application further provides an electronic device, including an antenna device, where the antenna device includes:
  • a near field communication chip comprising a first differential signal terminal and a second differential signal terminal, the first differential signal terminal and the second differential signal terminal are used for providing differential excitation current;
  • a first antenna electrically connected to the first differential signal terminal, the first antenna is used for transmitting the differential excitation current and radiating the near-field communication signal at the first near-field communication resonance frequency;
  • a second antenna electrically connected to the second differential signal terminal, the second antenna is used for transmitting the differential excitation current and radiating the near-field communication signal at the second near-field communication resonance frequency;
  • the first near field communication resonance frequency is different from the second near field communication resonance frequency.
  • FIG. 1 is a schematic diagram of a first structure of an electronic device provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a first structure of an antenna device provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a second structure of an antenna device provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a third structure of an antenna device provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a fourth structure of an antenna apparatus provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a fifth structure of an antenna device provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a sixth structure of an antenna device provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a second structure of an electronic device provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a third structure of an electronic device provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a fourth structure of an electronic device provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a fifth structure of an electronic device provided by an embodiment of the present application.
  • Embodiments of the present application provide an electronic device.
  • the electronic device may be a smart phone, a tablet computer, etc., or a game device, an AR (Augmented Reality, augmented reality) device, a car device, a data storage device, an audio playback device, a video playback device, a notebook computer, and a desktop computing device. equipment, etc.
  • AR Augmented Reality, augmented reality
  • FIG. 1 is a schematic diagram of a first structure of an electronic device 100 provided by an embodiment of the present application.
  • the electronic device 100 includes a display screen 10 , a housing 20 , a circuit board 30 and a battery 40 .
  • the display screen 10 is disposed on the casing 20 to form a display surface of the electronic device 100 for displaying information such as images and texts.
  • the display screen 10 may include a liquid crystal display (Liquid Crystal Display, LCD) or an organic light-emitting diode (Organic Light-Emitting Diode, OLED) type display screen.
  • LCD Liquid Crystal Display
  • OLED Organic Light-Emitting Diode
  • the casing 20 is used to form the outer contour of the electronic device 100 so as to accommodate the electronic devices, functional components, etc. of the electronic device 100 , and at the same time form a seal and protect the electronic devices and functional components inside the electronic device.
  • the camera, circuit board, vibration motor and other functional components of the electronic device 100 may be arranged inside the housing 20 .
  • the circuit board 30 is arranged inside the casing 20 .
  • the circuit board 30 may be the main board of the electronic device 100 .
  • the circuit board 30 may also integrate one or more functional components such as a processor, a camera, an earphone interface, an acceleration sensor, a gyroscope, and a motor.
  • the display screen 10 may be electrically connected to the circuit board 30 to control the display of the display screen 10 by a processor on the circuit board 30 .
  • the battery 40 is provided inside the case 20 . Meanwhile, the battery 40 is electrically connected to the circuit board 30 , so that the battery 40 can supply power to the electronic device 100 .
  • the circuit board 30 may be provided with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 40 to the various electronic devices in the electronic device 100 .
  • the electronic device 100 is further provided with an antenna device 200 .
  • the antenna apparatus 200 is used to implement a wireless communication function of the electronic device 100, for example, the antenna apparatus 200 may be used to implement a near field communication (Near Field Communication, NFC) function.
  • the antenna device 200 is arranged inside the casing 20 of the electronic device 100 . It can be understood that some components of the antenna device 200 may be integrated on the circuit board 30 inside the casing 20, for example, the signal processing chip and the signal processing circuit in the antenna device 200 may be integrated in the circuit on board 30. In addition, some components of the antenna device 200 may also be directly disposed inside the casing 20 . For example, the antenna of the antenna device 200 may be directly disposed inside the housing 20 .
  • FIG. 2 is a schematic diagram of a first structure of an antenna apparatus 200 according to an embodiment of the present application.
  • the antenna device 200 includes a near field communication chip 21 , a first antenna 22 and a second antenna 23 .
  • the near field communication chip (NFC chip) 21 is used for providing differential excitation current.
  • the differential excitation current may include two differential signals, and the two differential signals may be output as two independent signals, and independent matching circuits are respectively provided for matching.
  • the two differential signals include two current signals. The amplitudes of the two current signals are the same and the phases are opposite, or it is understood that the phases of the two current signals differ by 180 degrees.
  • the two differential signals are balanced signals. It is understandable that in the process of transmission, if the analog signal is directly transmitted, it is an unbalanced signal; if the original analog signal is inverted, then the inverted analog signal and the original analog signal are transmitted at the same time, and the inverted analog signal and the original analog signal are transmitted at the same time. The analog signal is called a balanced signal.
  • the NFC chip 21 includes a first differential signal terminal 211 and a second differential signal terminal 212 .
  • the first differential signal terminal 211 may be the positive (+) port of the NFC chip 21
  • the second differential signal terminal 212 may be the negative (-) port of the NFC chip 21 .
  • the first differential signal terminal 211 and the second differential signal terminal 212 are used to provide the differential excitation current.
  • the first differential signal terminal 211 may be used to provide one channel of differential signals in the differential excitation current
  • the second differential signal terminal 212 may be used to provide another channel of differential signals in the differential excitation current.
  • the NFC chip 21 may be provided on the circuit board 30 of the electronic device 100, or a smaller independent circuit board may be provided in the electronic device 100, and the NFC chip 21 may be integrated into the electronic device 100. on a separate circuit board.
  • the independent circuit board may be, for example, a small board in the electronic device 100 .
  • the first antenna 22 and the second antenna 23 are both electrically connected to the NFC chip 21 .
  • the first antenna 22 may be electrically connected to the first differential signal terminal 211 of the NFC chip 21
  • the second antenna 23 may be electrically connected to the second differential signal terminal 212 of the NFC chip 21 .
  • the first antenna 22 and the second antenna 23 are both grounded, so that the NFC chip 21 , the first antenna 22 and the second antenna 23 can form a signal loop.
  • the first antenna 22 is used to transmit the differential excitation current, for example, transmit a differential signal in the differential excitation current, and radiate the near field communication signal ( NFC signal). Therefore, the first antenna 22 can realize near field communication between the electronic device 100 and other electronic devices at the first NFC resonance frequency.
  • the second antenna 23 is used to transmit the differential excitation current, for example, to transmit another differential signal in the differential excitation current, and to radiate the NFC signal at the second NFC resonance frequency. Therefore, the second antenna 23 can realize near field communication between the electronic device 100 and other electronic devices at the second NFC resonance frequency.
  • the first NFC resonance frequency is different from the second NFC resonance frequency.
  • the first NFC resonance frequency may be 13.56MHz, and the second NFC resonance frequency may be 100KHz.
  • the first NFC resonance frequency may be 13.56 MHz, and the second NFC resonance frequency may be 2.4 GHz.
  • the first NFC resonance frequency may be 100KHz, and the second NFC resonance frequency may be 2.4GHz.
  • first antenna 22 and the second antenna 23 may be different, for example, shapes, sizes, materials, etc. may be different, so that the impedance of the first antenna 22 and the second antenna 23 may be different. Therefore, when the first antenna 22 and the second antenna 23 transmit the differential excitation current, different resonance frequencies can be generated respectively.
  • the NFC communication frequency of subway card swiping machines can be 13.56MHz
  • the NFC communication frequency of some access control systems can be 100KHz
  • the NFC communication frequency of some NFC-enabled devices may be as high as 2.4GHz.
  • NFC antennas usually only work in the 13.56MHz frequency band, so they cannot meet the application requirements of multiple scenarios.
  • the NFC antenna works at 13.56MHz
  • the 13.56MHz subway card swipe can be realized through the NFC function, but the 100KHz access control system cannot be opened.
  • the electronic device 100 since the NFC resonance frequency of the first antenna 22 and the NFC resonance frequency of the second antenna 23 are different, that is, the first antenna 22 and the second antenna 23 can work in different frequency bands, Therefore, the electronic device 100 can be made to support near field communication of multiple frequency bands, thereby improving the communication adaptability of the electronic device 100 .
  • the electronic device 100 can support near field communication of 13.56MHz and 100KHz at the same time, then the electronic device 100 can realize 13.56MHz subway card swiping through the NFC function, and can open the 100KHz access control system, so as to expand the electronic device 100 in life scope of application.
  • the first antenna 22 generates a first near field communication radiation field (NFC radiation field) when transmitting the differential excitation current.
  • the first NFC radiation field may cover an area of a certain space around the electronic device 100 .
  • the second antenna 23 generates a second NFC radiation field when transmitting the differential excitation current.
  • the second NFC radiation field may also cover an area of a certain space around the electronic device 100 .
  • the first NFC radiation field and the second NFC radiation field do not overlap each other. Therefore, mutual interference between the first antenna 22 operating at the first resonant frequency and the second antenna 23 operating at the second resonant frequency can be avoided, so that the first antenna 22 and the second antenna 23 can be improved. work stability.
  • the first antenna 22 may be disposed at one end of the electronic device 100, such as the top end, and the second antenna 23 may be disposed at the other end of the electronic device 100, such as the bottom end, so that the first antenna The first NFC radiation field generated by the antenna 22 and the second NFC radiation field generated by the second antenna 23 do not overlap each other.
  • FIG. 3 is a schematic diagram of a second structure of an antenna apparatus 200 provided by an embodiment of the present application.
  • the antenna device 200 further includes a first non-near field communication chip 241 . It can be understood that the first non-near field communication chip 241 may be integrated on the circuit board 30 of the electronic device 100 .
  • the first non-near field communication chip 241 is used to provide the first non-near field communication excitation current.
  • the first non-near field communication excitation current is an unbalanced signal.
  • the first non-near field communication excitation current may include one of a cellular network signal, a wireless fidelity (Wireless Fidelity, Wi-Fi) signal, a global positioning system (Global Positioning System, GPS) signal, and a Bluetooth (Bluetooth, BT) signal. kind.
  • the first non-near field communication chip 241 may be a cellular communication chip for providing the cellular network signal; the first non-near field communication chip 241 may be a Wi-Fi chip for providing the Wi-Fi signal; the first non-near field communication chip 241 may be a GPS chip for providing the GPS signal; the first non-near field communication chip 241 may also be a BT chip for providing the BT Signal.
  • the first antenna 22 is also electrically connected to the first non-near field communication chip 241 .
  • the first antenna 22 may also be used to transmit the first non-near field communication excitation current. Therefore, the first antenna 22 can radiate the wireless signal corresponding to the first non-near field communication excitation current to the outside, so as to realize the corresponding wireless communication function, for example, realize the cellular communication function, the Wi-Fi communication function, the GPS communication function , BT communication function, etc.
  • the first antenna 22 includes a first feed end 221 , a second feed end 222 and a first ground end 223 .
  • the first feeding terminal 221 is electrically connected to the first differential signal terminal 211 of the NFC chip 21 .
  • the second feeding terminal 222 is electrically connected to the first non-near field communication chip 241 .
  • the first ground terminal 223 is grounded.
  • the first feed end 221 and the second feed end 222 may be spaced apart, for example, the distance between the first feed end 221 and the first ground end 223 may be greater than the second feed end 223 The distance between the feed end 222 and the first ground end 223 .
  • the first feed end 221 and the second feed end 222 may be coincident. Therefore, the first differential signal terminal 211 of the NFC chip 21 and the first non-near field communication chip 241 can share a feeding terminal to reduce the number of feeding terminals provided on the first antenna 22, thereby simplifying the The setting of the first antenna 22 is described.
  • the first antenna 22 can be used not only to transmit the differential excitation current provided by the NFC chip 21 , but also to transmit the first non-near field communication excitation provided by the first non-near field communication chip 241 . current, so that the multiplexing of the first antenna 22 can be realized. Therefore, the number of antennas of the electronic device 100 can be reduced, thereby saving the internal layout space of the electronic device 100 .
  • FIG. 4 is a schematic diagram of a third structure of an antenna apparatus 200 provided by an embodiment of the present application.
  • the antenna device 200 further includes a second non-near field communication chip 242 . It can be understood that the second non-near field communication chip 242 may also be integrated on the circuit board 30 of the electronic device 100 .
  • the second non-near field communication chip 242 is used for providing a second non-near field communication excitation current.
  • the second non-near field communication excitation current is an unbalanced signal.
  • the second non-near field communication excitation current may also include one of a cellular network signal, a Wi-Fi signal, a GPS signal, and a BT signal.
  • the second non-near field communication chip 242 may be a cellular communication chip, a Wi-Fi chip, a GPS chip, a BT chip, or the like.
  • the second antenna 23 is also electrically connected to the second non-near field communication chip 242 .
  • the second antenna 23 is also used for transmitting the second non-near field communication excitation current. Therefore, the second antenna 23 can radiate the wireless signal corresponding to the second non-near field communication excitation current to the outside, thereby realizing the corresponding wireless communication function, such as realizing the cellular communication function, the Wi-Fi communication function, the GPS communication function , BT communication function, etc.
  • the second antenna 23 includes a third feed end 231 , a fourth feed end 232 and a second ground end 233 .
  • the third feeding terminal 231 is electrically connected to the second differential signal terminal 212 of the NFC chip 21 .
  • the fourth feeding terminal 232 is electrically connected to the second non-near field communication chip 242 .
  • the second ground terminal 233 is grounded.
  • the third feed end 231 and the fourth feed end 232 may be spaced apart, for example, the distance between the third feed end 231 and the second ground end 233 may be greater than the fourth feed end 233 The distance between the feed end 232 and the second ground end 233 .
  • the third feed end 231 and the fourth feed end 232 may overlap. Therefore, the second differential signal terminal 212 of the NFC chip 21 and the second non-near field communication chip 242 can share a feeding terminal. In order to reduce the number of feeding terminals provided on the second antenna 23 , the setting of the second antenna 23 is simplified.
  • the second antenna 23 can be used not only to transmit the differential excitation current provided by the NFC chip 21 , but also to transmit the second non-near field communication excitation provided by the second non-near field communication chip 242 . current, so that the multiplexing of the second antenna 23 can be realized. Therefore, the number of antennas of the electronic device 100 can be reduced, thereby saving the internal layout space of the electronic device 100 .
  • the antenna device 200 may also include the first non-near field communication chip 241 and the second non-near field communication chip 242 , and details are not described herein again.
  • FIG. 5 is a schematic diagram of a fourth structure of the antenna apparatus 200 provided by the embodiments of the present application.
  • the antenna device 200 further includes a first filter circuit 251 , a second filter circuit 252 , a third filter circuit 253 , a fourth filter circuit 254 , a first matching circuit 261 , a second matching circuit 262 , and a third matching circuit 263 and a fourth matching circuit 264 .
  • the filter circuit may also be called a filter network
  • the matching circuit may also be called a matching network, a tuning circuit, a tuning network, and the like.
  • the first filter circuit 251 is disposed between the first differential signal terminal 211 of the NFC chip 21 and the first antenna 22 .
  • the first filter circuit 251 is used for filtering out the first interference signal between the first differential signal terminal 211 and the first antenna 22 .
  • the first interference signal is an electrical signal other than the differential excitation current provided by the NFC chip 21 , for example, an electrical signal other than the differential signal provided by the first differential signal terminal 211 .
  • the second filter circuit 252 is disposed between the second differential signal terminal 212 of the NFC chip 21 and the second antenna 23 .
  • the second filter circuit 252 is used for filtering out the second interference signal between the second differential signal terminal 212 and the second antenna 23 .
  • the second interference signal is an electrical signal other than the differential excitation current provided by the NFC chip 21 , for example, an electrical signal other than the differential signal provided by the second differential signal terminal 212 .
  • the third filter circuit 253 is disposed between the first non-near field communication chip 241 and the first antenna 22 .
  • the third filter circuit 253 is configured to filter out the third interference signal between the first non-near field communication chip 241 and the first antenna 22 .
  • the third interference signal is an electrical signal other than the first non-near field communication excitation current provided by the first non-near field communication chip 241 .
  • the fourth filter circuit 254 is disposed between the second non-near field communication chip 242 and the second antenna 23 .
  • the fourth filter circuit 254 is used to filter out the fourth interference signal between the second non-near field communication chip 242 and the second antenna 23 .
  • the fourth interference signal is an electrical signal other than the second non-near field communication excitation current provided by the second non-near field communication chip 242 .
  • first filter circuit 251, the second filter circuit 252, the third filter circuit 253, and the fourth filter circuit 254 may include capacitors and inductors in series or in parallel. circuit.
  • the first matching circuit 261 is arranged between the first antenna 22 and the first differential signal terminal 211 of the NFC chip 21 , for example, between the first antenna 22 and the first filter circuit 251 .
  • the first matching circuit 261 is used to match the impedance when the first antenna 22 transmits the differential excitation current provided by the NFC chip 21 , for example, the first antenna 22 transmits the first differential signal terminal 211 impedance matching when providing differential signals.
  • the second matching circuit 262 is arranged between the second antenna 23 and the second differential signal terminal 212 of the NFC chip 21 , for example, between the second antenna 23 and the second filter circuit 252 .
  • the second matching circuit 262 is used to match the impedance when the second antenna 23 transmits the differential excitation current provided by the NFC chip 21 , for example, the second antenna 23 transmits the second differential signal terminal 212 impedance matching when providing differential signals.
  • the impedance of the first matching circuit 261 is different from the impedance of the second matching circuit 262 , so that the first antenna 22 and the second antenna 23 transmit the differential excitation current provided by the NFC chip 21 When , different resonance frequencies can be generated respectively.
  • the third matching circuit 263 is disposed between the first antenna 22 and the first non-near field communication chip 241 , for example, between the first antenna 22 and the third filter circuit 253 .
  • the third matching circuit 263 is configured to match the impedance of the first antenna 22 when transmitting the first non-near field communication excitation current.
  • the fourth matching circuit 264 is disposed between the second antenna 23 and the second non-near field communication chip 242 , for example, between the second antenna 23 and the fourth filter circuit 254 .
  • the fourth matching circuit 264 is configured to match the impedance when the second antenna 23 transmits the second non-near field communication excitation current.
  • first matching circuit 261, the second matching circuit 262, the third matching circuit 263, and the fourth matching circuit 264 may include capacitors and inductors in series or in parallel. circuit.
  • FIG. 6 is a schematic diagram of a fifth structure of the antenna apparatus 200 provided by the embodiments of the present application.
  • the first filter circuit 251 may include, for example, an inductor L1 and a capacitor C1.
  • the inductor L1 is connected in series between the first differential signal terminal 211 and the first antenna 22 , the capacitor C1 is connected between the inductor L1 and the first antenna 22 , and the capacitor C1 is grounded.
  • the second filter circuit 252 may include, for example, an inductor L2 and a capacitor C2.
  • the inductor L2 is connected in series between the second differential signal terminal 212 and the second antenna 23 , the capacitor C2 is connected between the inductor L2 and the second antenna 23 , and the capacitor C2 is grounded.
  • the third filter circuit 253 may include, for example, an inductor L3 and a capacitor C3.
  • the inductor L3 is connected in series between the first non-near field communication chip 241 and the first antenna 22, the capacitor C3 is connected between the inductor L3 and the first antenna 22, and the capacitor C3 is grounded.
  • the fourth filter circuit 254 may include, for example, an inductor L4 and a capacitor C4.
  • the inductor L4 is connected in series between the second non-near field communication chip 242 and the second antenna 23, the capacitor C4 is connected between the inductor L4 and the second antenna 23, and the capacitor C4 is grounded.
  • the first matching circuit 261 may include, for example, a capacitor C5 and a capacitor C6.
  • the capacitor C5 is connected in series between the first differential signal terminal 211 and the first antenna 22, for example, between the first filter circuit 251 and the first antenna 22, and the capacitor C6 is connected between the capacitor C5 and the first antenna 22. between the first antennas 22, and the capacitor C6 is grounded. It can be understood that there can be multiple capacitors C5 and C6.
  • the second matching circuit 262 may include, for example, a capacitor C7 and a capacitor C8.
  • the capacitor C7 is connected in series between the second differential signal terminal 212 and the second antenna 23, for example, between the second filter circuit 252 and the second antenna 23, and the capacitor C8 is connected between the capacitor C7 and the second antenna 23. between the second antenna 23, and the capacitor C8 is grounded. It can be understood that there can be multiple capacitors C7 and C8.
  • the third matching circuit 263 may include, for example, a capacitor C9 and a capacitor C10.
  • the capacitor C9 is connected in series between the first non-near field communication chip 241 and the first antenna 22, for example, between the third filter circuit 253 and the first antenna 22, and the capacitor C10 is connected to the capacitor C9 and the first antenna 22, and the capacitor C10 is grounded.
  • the fourth matching circuit 264 may include, for example, a capacitor C11 and a capacitor C12.
  • the capacitor C11 is connected in series between the second non-near field communication chip 242 and the second antenna 23, for example, between the fourth filter circuit 254 and the second antenna 23, and the capacitor C12 is connected to the capacitor C11 and the second antenna 23, and the capacitor C12 is grounded.
  • inductance values of the inductors L1 to L4 and the capacitance values of the capacitors C1 to C12 can be set according to actual needs.
  • FIG. 7 is a schematic diagram of a sixth structure of the antenna apparatus 200 provided by the embodiments of the present application.
  • the first differential signal terminal 211 of the NFC chip 21 may include a first transmitting terminal 211a and a first receiving terminal 211b
  • the second differential signal terminal 212 may include a second transmitting terminal 212a and a second receiving terminal 212b.
  • the first transmitting end 211a and the second transmitting end 212a may be used to output differential signals.
  • the first receiving end 211b and the second receiving end 212b may be used to receive externally input differential signals.
  • the inductor L1 is connected in series between the first transmitting end 211 a and the first antenna 22 .
  • the first filter circuit 251 may further include a resistor R1 and a capacitor C13 , and the resistor R1 and the capacitor C13 are arranged in series between the first receiving end 211 b and the first matching circuit 261 .
  • the first matching circuit 261 may further include a resistor R2 connected in series between the capacitor C5 and the first antenna 22 .
  • the inductor L2 is connected in series between the second transmitting end 212 a and the second antenna 23 .
  • the second filter circuit 252 may further include a resistor R3 and a capacitor C14, and the resistor R3 and the capacitor C14 are arranged in series between the second receiving end 212b and the second matching circuit 262.
  • the second matching circuit 262 may further include a resistor R4 connected in series between the capacitor C7 and the second antenna 23 .
  • FIG. 8 is a schematic diagram of a second structure of the electronic device 100 provided by the embodiments of the present application.
  • the electronic device 100 includes a first flexible printed circuit (Flexible Printed Circuit, FPC) 51 and a second flexible printed circuit 52 . Both the first flexible circuit board 51 and the second flexible circuit board 52 can be used to transmit current. Both the first flexible circuit board 51 and the second flexible circuit board 52 may be connected to the circuit board 30 of the electronic device 100 .
  • FPC Flexible Printed Circuit
  • the first antenna 22 includes the first flexible circuit board 51 , that is, the first antenna 22 can be formed by the first flexible circuit board 51 .
  • the second antenna 23 includes the second flexible circuit board 52 , that is, the second antenna 23 can be formed by the second flexible circuit board 52 .
  • the electronic device 100 further includes a first radiation field enhancer 53 and a second radiation field enhancer 54 .
  • the materials of the first radiation field enhancer 53 and the second radiation field enhancer 54 may include insulating materials, for example, may include ferrite layers.
  • the ferrite layer is formed of a ferrite material, and the ferrite material may be a nickel-copper-zinc-based material having predetermined contents of iron oxide, copper oxide, zinc oxide, and nickel oxide.
  • the ferrite material may also include some auxiliary materials, such as bismuth oxide, silicon oxide, magnesium oxide, cobalt oxide and other materials with a specified content.
  • the first radiation field enhancer 53 and the second radiation field enhancer 54 may be used to enhance the intensity of the electromagnetic field.
  • the first radiation field enhancer 53 is disposed on one side of the first flexible circuit board 51 .
  • the first radiation field enhancer 53 is used to enhance the radiation field strength when the first antenna 22 radiates the NFC signal, so that the NFC signal strength of the first antenna 22 can be improved.
  • the second radiation field enhancer 54 is disposed on one side of the second flexible circuit board 52 .
  • the second radiation field enhancer 54 is used to enhance the radiation field strength when the second antenna 23 radiates the NFC signal, so that the NFC signal strength of the second antenna 23 can be improved.
  • FIG. 9 is a third schematic structural diagram of the electronic device 100 provided by the embodiments of the present application.
  • the circuit board 30 of the electronic device 100 is provided with a first printed circuit 31 and a second printed circuit 32 at intervals.
  • the shapes of the first printed circuit 31 and the second printed circuit 32 may be linear, spiral, annular, irregular, or the like. Both the first printed circuit 31 and the second printed circuit 32 can be used to transmit current.
  • the first antenna 22 includes the first printed circuit 31
  • the second antenna 23 includes the second printed circuit 32 . That is, the first antenna 22 may be formed by the first printed circuit 31
  • the second antenna 23 may be formed by the second printed circuit 32 .
  • the first antenna 22 and the second antenna 23 need not be separately provided on the electronic device 100, and the first antenna 22 and the second antenna 23 can be formed by the printed circuit on the circuit board 30, so The design of the antenna can be simplified.
  • FIG. 10 is a schematic diagram of a fourth structure of an electronic device 100 provided by an embodiment of the present application.
  • the electronic device 100 includes a metal frame 60 .
  • the metal frame 60 can be used as a part of the casing 20 .
  • the metal frame 60 may be, for example, an aluminum alloy frame, a magnesium alloy frame, or the like.
  • the metal frame 60 may surround the periphery of the middle frame of the electronic device 100 .
  • a first metal branch 61 and a second metal branch 62 are formed on the metal frame 60 at intervals.
  • a slit 63 and a slit 64 may be formed at one end of the metal frame 60, and the first metal branch 61 may be formed through the slit 63 and the slit 64; a slit may be formed at the other end of the metal frame 60 65 and a slit 66 , the second metal branch 62 is formed through the slit 65 and the slit 66 .
  • the first antenna 22 includes the first metal branch 61
  • the second antenna 23 includes the second metal branch 62 . That is, the first antenna 22 may be formed by the first metal branch 61
  • the second antenna 23 may be formed by the second metal branch 62 .
  • the first antenna 22 and the second antenna 23 do not need to be separately provided on the electronic device 100, and the first antenna 22 and the second antenna 23 can be formed by the metal frame 60, thus simplifying the operation of the antenna. design.
  • FIG. 11 is a schematic diagram of a fifth structure of the electronic device 100 provided by the embodiments of the present application.
  • the Electronic device 100 includes battery cover 70 .
  • the battery cover 70 may be part of the housing 20 .
  • the battery cover 70 can be, for example, a battery cover made of aluminum alloy, magnesium alloy or the like.
  • the battery cover 70 covers the battery 40 of the electronic device 100 .
  • a third metal branch 71 and a fourth metal branch 72 are formed on the battery cover 70 at intervals.
  • two U-shaped slits may be formed on the battery cover 70 , one U-shaped slit forms the third metal branch 71 , and the other U-shaped slit forms the fourth metal branch 72 .
  • an E-shaped slit may be formed on the battery cover 70 , and the third metal branch 71 and the fourth metal branch 72 may be formed through the E-shaped slit.
  • the first antenna 22 includes the third metal branch 71
  • the second antenna 23 includes the fourth metal branch 72 . That is, the first antenna 22 may be formed by the third metal branch 71
  • the second antenna 23 may be formed by the fourth metal branch 72 .
  • the first antenna 22 and the second antenna 23 need not be separately provided on the electronic device 100, and the first antenna 22 and the second antenna 23 can be formed through the battery cover 70, thus simplifying the operation of the antenna. design.

Landscapes

  • Support Of Aerials (AREA)

Abstract

Appareil d'antenne et dispositif électronique. L'appareil d'antenne comprend : une puce de communication en champ proche, utilisée pour fournir un courant d'excitation différentiel ; une première antenne, utilisée pour transmettre le courant d'excitation différentiel et émettre un signal de communication en champ proche à une première fréquence de résonance de communication en champ proche ; et une seconde antenne, utilisée pour transmettre le courant d'excitation différentiel et émettre le signal de communication en champ proche à une seconde fréquence de résonance de communication en champ proche. La première fréquence de résonance de communication en champ proche est différente de la seconde fréquence de résonance de communication en champ proche.
PCT/CN2021/098521 2020-07-21 2021-06-07 Appareil d'antenne et dispositif électronique WO2022017017A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202021450003.2 2020-07-21
CN202010707001.5A CN113964551A (zh) 2020-07-21 2020-07-21 天线装置及电子设备
CN202021450003.2U CN212412212U (zh) 2020-07-21 2020-07-21 天线装置及电子设备
CN202010707001.5 2020-07-21

Publications (1)

Publication Number Publication Date
WO2022017017A1 true WO2022017017A1 (fr) 2022-01-27

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Country Link
WO (1) WO2022017017A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2458673A2 (fr) * 2010-09-30 2012-05-30 Assa Abloy Ab Interface de calcul d'antenne
CN107403995A (zh) * 2016-05-18 2017-11-28 华硕电脑股份有限公司 电子装置
WO2019204988A1 (fr) * 2018-04-24 2019-10-31 华为技术有限公司 Système d'antenne de communication en champ proche et dispositif terminal
CN212412212U (zh) * 2020-07-21 2021-01-26 Oppo广东移动通信有限公司 天线装置及电子设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2458673A2 (fr) * 2010-09-30 2012-05-30 Assa Abloy Ab Interface de calcul d'antenne
CN107403995A (zh) * 2016-05-18 2017-11-28 华硕电脑股份有限公司 电子装置
WO2019204988A1 (fr) * 2018-04-24 2019-10-31 华为技术有限公司 Système d'antenne de communication en champ proche et dispositif terminal
CN212412212U (zh) * 2020-07-21 2021-01-26 Oppo广东移动通信有限公司 天线装置及电子设备

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