CN113131196A

CN113131196A - Antenna device and electronic apparatus

Info

Publication number: CN113131196A
Application number: CN201911421974.6A
Authority: CN
Inventors: 黄武鑫; 李偲
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-16

Abstract

An embodiment of the present application provides an antenna device and an electronic device, including: the near field communication chip is used for providing differential excitation current; the near field communication coil is arranged at the periphery of the camera module and is electrically connected with the near field communication chip; a first conductor structure electrically connected to the near field communication coil and grounded; the second conductor structure is electrically connected with the near field communication chip and is grounded; the near field communication coil, the first conductor structure and the second conductor structure are used for transmitting differential excitation current together, when the differential excitation current is transmitted, the near field communication coil forms a first near field communication radiation field, the first conductor structure forms a second near field communication radiation field, the second conductor structure forms a third near field communication radiation field, and the first near field communication radiation field is used for enhancing the second near field communication radiation field and the third near field communication radiation field. The performance of the near field communication antenna can be improved.

Description

Antenna device and electronic apparatus

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an antenna device and an electronic device.

Background

With the development of communication technology, electronic devices such as smart phones have more and more functions, and communication modes of the electronic devices are more diversified. For example, a typical electronic device may support multiple communication modes such as cellular network communication, Wireless Fidelity (Wi-Fi) communication, Global Positioning System (GPS) communication, Bluetooth (BT) communication, and the like. Further, with the advancement of Communication technology, Near Field Communication (NFC) is increasingly available for electronic devices in recent years. It will be appreciated that each communication mode of the electronic device requires a respective antenna to support.

On the other hand, the metal frame is used as the NFC antenna, although the radiation area of the antenna can be increased, the radiation field strength of the NFC antenna is limited.

Disclosure of Invention

The embodiment of the application provides an antenna device and electronic equipment, which can enhance the radiation field intensity of an NFC antenna and improve the performance of the NFC antenna.

In a first aspect, an embodiment of the present application provides an antenna apparatus, including:

the near field communication chip is used for providing differential excitation current;

the near field communication coil is arranged at the periphery of the camera module and is electrically connected with the near field communication chip;

a first conductor structure electrically connected with the near field communication coil, and the first conductor structure is grounded;

the second conductor structure is electrically connected with the near field communication chip and is grounded;

the near field communication coil, the first conductor structure and the second conductor structure are used for jointly transmitting the differential excitation current, when the differential excitation current is transmitted, the near field communication coil forms a first near field communication radiation field, the first conductor structure forms a second near field communication radiation field, the second conductor structure forms a third near field communication radiation field, and the first near field communication radiation field is used for enhancing the second near field communication radiation field and the third near field communication radiation field.

In a second aspect, an embodiment of the present application further provides an electronic device, which includes an antenna apparatus, where the antenna apparatus is the above antenna apparatus.

The antenna device and the electronic equipment provided by the embodiment of the application connect the first conductor structure and the second conductor structure through the near field communication chip, then, a near field communication coil is arranged at the periphery of the camera module, the first conductor structure is electrically connected with the near field communication chip through the near field communication coil, the near field communication coil is used for transmitting a differential excitation current provided by the near field communication chip to form a first near field communication radiation field, the first conductor structure and the second conductor structure are both used for transmitting a differential excitation current provided by the near field communication chip to form a second near field communication radiation field and a third near field communication radiation field respectively, the third near field communication radiation field generated by the near field communication coil can be used for enhancing the first near field communication radiation field and the second near field communication radiation field, and therefore the performance of the near field communication antenna can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a rear view of the electronic device shown in fig. 1.

Fig. 3 is a schematic view of a first connection structure between an antenna device and a camera module in an electronic device according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a first structure of a rear cover in an electronic device according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a second structure of a rear cover in an electronic device according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a third rear cover in an electronic device according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a fourth structure of a rear cover in an electronic device according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a middle frame of an electronic device according to an embodiment of the present application.

Fig. 9 is a schematic view of a first connection structure between a camera module and a nfc coil in an electronic device according to an embodiment of the present disclosure.

Fig. 10 is a schematic diagram of a second connection structure between a camera module and a nfc coil in an electronic device according to an embodiment of the present disclosure.

Fig. 11 is a schematic view of a second connection structure between an antenna device and a camera module in an electronic device according to an embodiment of the present application.

Fig. 12 is a schematic view of a third connection structure between an antenna device and a camera module in an electronic device according to an embodiment of the present application.

Fig. 13 is a schematic diagram of a fourth connection structure between an antenna device and a camera module in an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides electronic equipment. The electronic device may be a smart phone, a tablet computer, or other devices, and may also be a game device, an AR (Augmented Reality) device, an automobile device, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device, or other devices.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present disclosure, and fig. 2 is a rear view of the electronic device 100 shown in fig. 1.

The electronic device 100 includes a display screen 10, a middle frame 20, a circuit board 30, a battery 40, a rear cover 50, and a camera module 60.

The display screen 10 is disposed on the middle frame 20 to form a display surface of the electronic device 100, and is used for displaying information such as images and texts. The Display screen 10 may include a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED) Display screen.

It will be appreciated that the display screen 10 may be a full-screen display, in which case the entire area of the display screen 10 is the display area and does not include the non-display area, or the non-display area on the display screen 10 may occupy only a small area for the user, such that the display screen 10 has a large screen fraction. Alternatively, the display screen 10 may be a non-full screen, in which case the display screen 10 includes a display area and a non-display area adjacent to the display area. The display area is used for displaying information, and the non-display area does not display information.

It will be appreciated that a cover plate may also be provided over the display screen 10 to protect the display screen 10 from scratching or water damage. The cover may be a transparent glass cover, so that a user can observe the contents displayed by the display screen 10 through the cover. It will be appreciated that the cover plate may be a glass cover plate of sapphire material.

The middle frame 20 may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The middle frame 20 is used for providing a supporting function for the electronic devices or functional components in the electronic device 100, so as to mount the electronic devices or functional components of the electronic device 100 together. For example, the middle frame 20 may be provided with a groove, a protrusion, a through hole, etc. to facilitate mounting of the electronic device or the functional component of the electronic apparatus 100. It is understood that the material of the middle frame 20 may include metal or plastic.

The circuit board 30 is disposed on the middle frame 20 to be fixed, and the circuit board 30 is sealed inside the electronic apparatus 100 by the rear cover 50. The circuit board 30 may be a main board of the electronic device 100. The circuit board 30 may have a processor integrated thereon, and may further have one or more of a headset interface, an acceleration sensor, a gyroscope, a motor, and the like integrated thereon. Meanwhile, 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 disposed on the middle frame 20, and the battery 40 is sealed inside the electronic apparatus 100 by the rear cover 50. Meanwhile, the battery 40 is electrically connected to the circuit board 30 to enable the battery 40 to supply power to the electronic device 100. The circuit board 30 may be provided thereon 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 apparatus 100.

The rear cover 50 is coupled to the middle frame 20. For example, the rear cover 50 may be attached to the middle frame 20 by an adhesive such as a double-sided tape to achieve connection with the middle frame 20. The rear cover 50 is used to seal the electronic devices and functional components of the electronic device 100 inside the electronic device 100 together with the middle frame 20 and the display screen 10, so as to protect the electronic devices and functional components of the electronic device 100. It is understood that the rear cover 50 may be integrally formed. In the molding process of the rear cover 50, an opening for mounting a rear camera or the like may be formed in the rear cover 50. The material of the rear cover 50 includes metal, such as copper, aluminum, silver, etc.

The camera module 60 is disposed on the middle frame 20. For example, the camera module 60 may be mounted on the middle frame 20 to be fixed. Meanwhile, the camera module 60 is electrically connected to the circuit board 30, so as to control the camera module 60 through the processor on the circuit board 30, for example, control the camera module 60 to take pictures or record videos.

It is understood that the camera module 60 may be a rear camera module of the electronic device 100. At this time, an opening for installing the camera module 60 may be provided on the rear cover, the camera module 60 is installed on the middle frame 20 through the opening, and the camera module 60 may also collect ambient light signal images through the opening.

Referring to fig. 3, fig. 3 is a schematic view of a first connection structure between an antenna device and a camera module in an electronic device according to an embodiment of the present disclosure; the electronic device 100 may further include an antenna device 200. The antenna device 200 is used to implement a wireless communication function of the electronic apparatus 100, for example, the antenna device 200 may be used to implement near field communication (NFC communication). The antenna device 200 is provided inside the electronic apparatus 100. It should be understood that some components of the antenna device 200 may be integrated on the circuit board 30 inside the middle frame 20, for example, the signal processing chip and the signal processing circuit in the antenna device 200 may be integrated on the circuit board 30. In addition, some components of the antenna device 200 may be directly disposed on the middle frame 20. For example, a radiator or a conductor structure for radiating a signal of the antenna device 200 may be directly disposed on the middle frame 20.

The antenna device 200 includes a near field communication chip 21, a near field communication coil 22, a first conductor structure 23, a second conductor structure 24, and a ground plane 25.

In the description of the present application, it is to be understood that terms such as "first", "second", and the like are used merely to distinguish one similar element from another, and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated.

Among other things, the near field communication chip (NFCIC)21 may be used to provide near field communication signals, i.e., NFCIC21 is used to provide differential excitation currents. The differential excitation current includes two current signals. The two current signals are identical in amplitude and opposite in phase, or are understood to be 180 degrees out of phase. In addition, the differential excitation current is a balanced signal. It can be understood that the analog signal is an unbalanced signal if directly transmitted during the transmission process; if the original analog signal is inverted and then the inverted analog signal and the original analog signal are transmitted simultaneously, the inverted analog signal and the original analog signal are called balanced signals. The balanced signal passes through the differential amplifier in the transmission process, the original analog signal and the inverted analog signal are subtracted to obtain an enhanced original analog signal, and because the two transmission lines are subjected to the same interference in the transmission process, the same interference signal is subtracted in the subtraction process, the anti-interference performance of the balanced signal is better.

The NFC IC21 includes a first differential signal terminal 211 and a second differential signal terminal 212. For example, the first differential signal terminal 211 may be a positive (+) port of the NFCIC21, and the second differential signal terminal 212 may be a negative (-) port of the NFC IC 21. The first differential signal terminal 211 and the second differential signal terminal 212 are used for providing the differential excitation current. For example, the differential excitation current provided by the NFC IC21 may be output into the antenna device 200 via the first differential signal terminal 211 and flow back into the NFC IC21 via the second differential signal terminal 212, thereby forming a conductive loop.

It is understood that the NFC IC21 may be disposed on the circuit board 30 of the electronic device 100, or a smaller separate circuit board may be disposed in the electronic device 100 and the NFCIC21 may be integrated on the separate circuit board. The separate circuit board may be, for example, a small board in the electronic device 100.

And the near field communication coil 22 is used for being arranged around the camera module 60, the near field communication coil 22 is electrically connected with the NFC IC21, and the near field communication coil 22 is used for transmitting the differential excitation current provided by the NFC IC21 so as to form a first near field communication radiation field.

And a first conductor structure 23 electrically connected to the near field communication coil 22, wherein the first conductor structure 23 is grounded, and the first conductor structure 23 is configured to transmit a differential excitation current provided by the NFCIC21 to form a second near field communication radiation field.

The first conductor structure 23 may be a metal structure in the electronic device 100, a metal trace on the circuit board 30, a wound coil, or the like.

The second conductor structure 24 is electrically connected to the NFC IC21, and the second conductor structure 24 is grounded, and the second conductor structure 24 is used for transmitting a differential excitation current provided by the NFC IC21 to form a third near-field communication radiation field.

The second conductor structure 24 may be a metal structure in the electronic device 100, a metal trace on the circuit board 30, a wound coil, or the like.

In this embodiment of the application, by setting the near field communication coil 22 around the camera module, the first conductor structure 23 is electrically connected with the NFC IC21 through the near field communication coil 22, and the first near field communication radiation field formed by the near field communication coil 22 is used for enhancing the second near field communication radiation field formed by the first conductor structure 23 and the third near field communication radiation field formed by the second conductor structure 24, so that the performance of the NFC antenna can be improved.

As can be understood, the first near field communication radiation field, the second near field communication radiation field, and the third near field communication radiation field at least partially overlap, so that the first near field communication radiation field, the second near field communication radiation field, and the third near field communication radiation field may mutually enhance, and thus, the performance of the NFC antenna may be improved.

Because the first near field communication radiation field, the second near field communication radiation field, and the third near field communication radiation field are at least partially overlapped, the direction of the differential excitation current in the near field communication coil 22 may be the same as or have an included angle with the direction of the differential excitation current in the first conductor structure 23, and the direction of the differential excitation current in the near field communication coil 22 may be the same as or have an included angle with the direction of the differential excitation current in the second conductor structure 24, where the included angle is smaller than 90 degrees.

It is understood that the first conductor structure 23 may also be directly electrically connected to the NFC IC21, and the near field communication coil 22 may also be located between the second conductor structure 24 and the NFC IC21, and the second conductor structure 24 is electrically connected to the NFC IC21 through the near field communication coil 22.

It is understood that the first conductor structure 23, the second conductor structure 24 and the near field communication coil 22 may also be electrically connected to the NFC IC21, respectively, and when the first conductor structure 23, the second conductor structure 24 and the near field communication coil 22 are electrically connected to the NFC IC21, respectively, the first conductor structure 23, the second conductor structure 24 and the near field communication coil 22 are grounded, respectively.

The ground plane 25 is used to form a common ground. The ground plane 25 may be formed by a conductor, a printed wiring, a metal printed layer, or the like in the electronic device 100. For example, the ground plane 25 may be disposed on a circuit board 30 of the electronic device 100. The ground plane 25 may also be formed on the bezel 20 of the electronic device 100, or the ground plane 25 may also be formed by the metal back cover 50.

The ground plane 25 comprises a first ground point 251 and a second ground point 252 arranged at a distance. The first ground point 251, the second ground point 252 may be, for example, an end portion of the ground plane 25, or may also be a protruding structure on the ground plane 25, or may also be a pad formed on the ground plane 25, or the like.

Wherein the ground plane 25 forms a conductive path between the first ground point 251 and the second ground point 252, which may be used to conduct current. That is, when a voltage signal is applied to the first ground point 251 and the second ground point 252, a current may be generated between the first ground point 251 and the second ground point 252, thereby forming a current loop. It will be appreciated that when the NFC IC21 provides a differential excitation current, the conductive path between the first ground point 251 and the second ground point 252 may be used to carry the differential excitation current.

The first conductor structure 23 includes a first feeding terminal 231 and a first grounding terminal 232 which are spaced apart. The first feeding terminal 231 is electrically connected to the first terminal of the near field communication coil 22, and the second terminal of the near field communication coil 22 is electrically connected to the first differential signal terminal 211 of the NFC IC21, so that the first differential signal terminal 211 feeds power to the near field communication coil 22 and the first feeding terminal 231 of the first conductor structure 23, respectively. For example, the differential excitation current provided by the NFC IC21 may be transmitted to the near field communication coil 22 and the first feeding end 231 of the first conductor structure 23 via the first differential signal end 211 to enable feeding of the near field communication coil 22 and the first conductor structure 23. The first ground terminal 232 is electrically connected to a first ground point 251 of the ground plane 25, thereby realizing a ground return of the first conductor structure 23 and the near field communication coil 22.

The second conductor structure 24 includes a second feeding terminal 241 and a second grounding terminal 242 which are spaced apart. The second feeding end 241 is electrically connected to the second differential signal end 212 of the NFC IC21, so that the second differential signal end 212 feeds power to the second feeding end 241. For example, the differential excitation current provided by the NFC IC21 may be transmitted to the second differential signal terminal 212 via the second feed terminal 241 to enable feeding the second conductor structure 24. The second ground terminal 242 is electrically connected to a second ground point 252 of the ground plane 25, thereby realizing a ground return of the second conductor structure 24.

Wherein the near field communication coil 22, the first conductor structure 23, the conductive path on the ground plane 25 and the second conductor structure 24 together form a conductive loop for the transmission of said differential excitation current. That is, the differential excitation current is output from one signal terminal of the NFC IC21, for example, the first differential signal terminal 211, then fed into the near field communication coil 22, transmitted to the first conductor structure 23 via the near field communication coil 22, transmitted to the conductive path on the ground plane 25 via the first conductor structure 23, transmitted to the second conductor structure 24 via the conductive path, and finally returned to the second differential signal terminal 212 of the NFC IC21 through the second conductor structure 24, thereby forming a complete conductive loop.

It is understood that when the conductive loop transmits the differential excitation current, the near field communication coil 22, the first conductor structure 23, the conductive path on the ground plane 25, and the second conductor structure 24 may collectively generate an alternating electromagnetic field, so as to radiate an NFC signal outwards to implement NFC communication of the electronic device 100.

As shown in fig. 3, when the first differential signal terminal 211 of the NFC IC21 is set to be positive (+) and the second differential signal terminal 212 is set to be negative (-) and the conductive loop transmits the differential excitation current, the current is transmitted from the first differential signal terminal 211 of the NFC IC21 to the first terminal of the near field communication coil 22, then the differential excitation current is transmitted in the counterclockwise direction in the near field communication coil 22, and is transmitted from the second terminal of the near field communication coil 22 to the first conductor structure 23, then is transmitted from the first conductor structure 23 to the ground plane 25, then is transmitted to the second conductor structure 24 through the conductive path on the ground plane 25, and then is transmitted to the second differential signal terminal 212 of the NFC IC21 through the second conductor structure 24.

When the first differential signal terminal 211 of the NFC IC21 is set to be negative (-) and the second differential signal terminal 212 is set to be positive (+), when the conductive loop transmits the differential excitation current, the current is transmitted from the second differential signal terminal 212 of the NFC IC21 to the second conductor structure 24, then transmitted from the second conductor structure 24 to the ground plane 25, then transmitted to the first conductor structure 23 through the conductive path on the ground plane 25, and transmitted from the first conductor structure 23 to the first terminal of the near field communication coil 22, and the differential excitation current is transmitted in the clockwise direction in the near field communication coil 22 and transmitted from the second terminal of the near field communication coil 22 to the first differential signal terminal 211 of the NFC IC 21.

The first conductor structure 23 and the second conductor structure 24 may be metal structures in the electronic device 100, metal traces on the circuit board 30, and wound coils.

For example, the circuit board 30 of the electronic apparatus 100 is provided with a printed wiring. The first conductor structure 23 may be the printed wiring, or the second conductor structure 24 may be the printed wiring.

For another example, the electronic device 100 includes a Flexible Printed Circuit (FPC) electrically connected to the Circuit board 30. The FPC may be, for example, an FPC for a display screen, an FPC for a camera, an FPC for a motor, or the like, or the FPC may be an independent FPC for implementing an NFC conductor structure, which may be fixed in the housing of the electronic device 100. The FPC is provided with metal wiring, and the metal wiring is used for transmitting signals, such as control signals of a display screen, control signals of a camera, control signals of a motor and the like. The first conductor structure 23 may comprise the metal trace, or the second conductor structure 24 may comprise the metal trace.

For another example, a first metal branch and a second metal branch are spaced on the metal back cover 50, the first metal branch forms the first conductor structure 23, and the second metal branch forms the second conductor structure 24.

Referring to fig. 3 and fig. 4 at the same time, fig. 4 is a schematic view of a first structure of a rear cover of an electronic device according to an embodiment of the present disclosure; when first metal branch knot and second metal branch knot are located two relative sides of back lid 50, two sides are left side and right side respectively, the interval is equipped with first gap 51 and second gap 52 on the back lid 50, first gap 51 and second gap 52 all run through back lid 50 and set up, first gap 51 extends towards first direction on the back lid 50 to form first metal branch knot, second gap 52 extends towards the second direction on the back lid 50, in order to form second metal branch knot, wherein, first direction and second direction can be the same, also can be different.

Specifically, the rear cover 50 is further provided with a first broken seam 53 and a second broken seam 54, the first broken seam 53 and the second broken seam 54 are arranged through the rear cover 50, the first broken seam 53 and the first seam 51 are communicated with each other to form a first metal branch, and the second broken seam 54 and the second seam 52 are communicated with each other to form a second metal branch.

Still be equipped with opening 55 on the back lid 50, opening 55 is used for installing camera module 60, and wherein, opening 55 can set up in the position that back lid 50 is close to the edge, and opening 55 also can set up in the intermediate position of back lid 50, and opening 55's the position that sets up can set up according to actual need, and this application embodiment is no longer repeated one by one.

The shape of the opening 55 is circular or elliptical, it can be understood that the shape of the opening 55 may also be square or irregular, the specific shape of the opening 55 may be set according to the size of the camera module 60, and the specific shape of the opening 55 is not further limited in this embodiment of the application.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a second structure of a rear cover of an electronic device according to an embodiment of the disclosure; the rear cover 50 may further include a through hole 56, the through hole 56 is located between the first slot 51 and the opening 55, and the through hole 56 and the opening 55 are communicated with each other, so that the differential excitation current signal transmitted by the NFC coil 22 is transmitted to the outside of the electronic device through the opening 55 and the through hole 56, and more differential excitation current signals may be transmitted to the outside of the electronic device, thereby improving the performance of the NFC antenna.

It can be understood that, referring to fig. 6, fig. 6 is a third schematic structural diagram of the rear cover in the electronic device according to the embodiment of the present application, in order to further improve the performance of the NFC antenna, the through hole 56 may be communicated with the opening 55 and the first slot 51, so that the differential excitation current signal transmitted by the near field communication coil 22 is transmitted to the outside of the electronic device through the opening 55, the through hole 56 and the first slot 51, and more differential excitation current signals may be transmitted to the outside of the electronic device, so as to further improve the performance of the NFC antenna.

It can be understood that, referring to fig. 7, fig. 7 is a fourth structural schematic diagram of the rear cover in the electronic device according to the embodiment of the present disclosure, the first metal branch may also be located at the upper end or the lower end of the rear cover 50, for example, when the first metal branch is located at the upper end of the rear cover 50, and the second metal branch is located at the right end of the rear cover 50, the through hole 56 on the rear cover 50 is located at the upper end of the rear cover 50, and the through hole 56 is located between the first gap 51 and the opening 55, where the location of the through hole 56 may be adapted to the location of the first metal branch, and it can be understood that the location of the through hole 56 may also be adapted to the location of the second metal branch.

With continued reference to fig. 3 and fig. 4, in order to further improve the performance of the NFC antenna, when the first conductor structure 23 and the second conductor structure 24 are located on the metal back cover 50, the first ground 232 and the second ground 242 of the first conductor structure 23 and the second conductor structure 24 are disposed away from the NFC coil 22, for example, the first ground 232 is located at an end of the first metal stub away from the first broken seam 53, and the second ground 242 is located at an end of the second metal stub away from the second broken seam 54, because the grounds of the first conductor structure 23 and the second conductor structure 24 are not located close to the NFC coil 22, the differential excitation current transmitted by the NFC antenna may form a forward eddy current, so that the performance of the NFC antenna may be improved.

For another example, a first metal branch and a second metal branch are spaced apart from each other on the middle frame 20, the first metal branch forms a first conductor structure 23, and the second metal branch forms a second conductor structure 24.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a middle frame of an electronic device according to an embodiment of the present disclosure, where the middle frame 20 includes a substrate 201 and a metal frame 202. The substrate 201 may have a thin plate or sheet structure. In some embodiments, the substrate 201 may have a hole or a groove formed thereon. Holes or slots formed in the substrate 201 may be used to mount other electronic components of the electronic device 100. For example, electronic components such as a camera, a circuit board, etc. of the electronic apparatus 100 may be mounted on the substrate 201 through holes or slots. The material of the substrate 201 may include metal or plastic. For example, the substrate 201 may be an aluminum alloy substrate.

A metal frame 202 is formed around the periphery of the substrate 201. For example, the metal frame 202 may be formed by a metal material surrounding the periphery of the substrate 201. The material of the metal frame 202 may include metal such as aluminum alloy and magnesium alloy. For example, in some embodiments, the metal bezel 202 may be a magnesium alloy metal bezel. The width of the metal bezel 202 may be between 2mm (millimeters) and 5 mm.

The metal frame 202 has a slit, such as a third slit 2021, and the third slit 2021 is disposed through the thickness direction of the metal frame 202 to divide the metal frame 202 into at least a first metal portion 2022 and a second metal portion 2023, where the first metal portion 2022 forms a first metal branch and the second metal portion 2023 forms a second metal branch.

A gap 2011 is arranged between the metal frame 202 and the substrate 201, the gap 2011 is communicated with the third broken seam 2021, the third broken seam 2021 divides the gap 2011 into a first part and a second part, for example, the gap 2011 extends from the third broken seam 2021 along the left side of the metal frame 202 to form the first part, the gap 2011 extends from the third broken seam 2021 along the right side of the metal frame 202 to form the second part, the metal frame 202 corresponding to the first part is a first metal part 2022, and the metal frame corresponding to the second part is a second metal part 2023.

It is understood that, in order to improve the structural strength of the electronic device, the third fracture 2021 and the gap 2011 may be filled with a plastic material, and the plastic material seals the third fracture 2021 and the gap 2011.

It can be understood that, in order to improve the aesthetic appearance of the electronic device, the third broken seam 2021 and the gap 2011 may be filled with a plastic material having the same color as the metal bezel 202, so as to reduce the variety of the appearance colors of the electronic device 100, which is beneficial to improving the aesthetic appearance of the electronic device.

It is understood that the middle frame 20 may also include a substrate and a plastic frame, the plastic frame is disposed around the substrate, and the first metal branch and the second metal branch are formed by disposing two metal sheets on the plastic frame.

It can be understood that, when the first metal branch is disposed on the middle frame 20 to form the first conductor structure 23 and the second metal branch is disposed to form the second conductor structure 24, a through hole, such as the through hole 56, may also be disposed on the rear cover 50, and the through hole 56 is communicated with the opening 55 and the slot 2011, so as to enable the differential excitation current signal transmitted by the near field communication coil 22 to be transmitted to the outside of the electronic device through the opening 55, the through hole 56 and the slot 2011, and enable more differential excitation current signals to be transmitted to the outside of the electronic device, so as to further improve the performance of the NFC antenna.

The camera module 60 may include a camera and a metal decoration. The camera is used for collecting the ambient light signal to image, thereby realizing photographing or video recording. Wherein, the camera can include camera lens and base. The lens is installed on the base to fix the lens. The base may be mounted on the middle frame 20 or mounted on the circuit board 30 for fixation.

The metal decorating part can play a decorating role on one hand, and the internal structure of the camera can be prevented from being observed from the outside of the electronic equipment; on the other hand, the auxiliary fixing effect on the camera can be achieved, and the structural stability of the camera is enhanced.

The near field communication coil 22 may be disposed around the periphery of the camera, and the near field communication coil 22 may also be disposed around the periphery of the metal ornament.

When the near field communication coil 22 is arranged around the periphery of the camera, the camera includes a lens and a base, the lens is fixed on the base, and the near field communication coil 22 may be arranged around the base or around one end of the lens close to the base.

When the near field communication coil 22 is disposed around the periphery of the metal garnish, the near field communication coil 22 is an unclosed coil to form two end portions for electrical connection with the NFC IC21 and the first conductor structure 23.

The metal decoration may be made of aluminum alloy, magnesium alloy, copper alloy, or the like.

The metal decoration is provided with a third slit, the third slit is located between the through hole 56 and the opening 55, the third slit is arranged to penetrate through the metal decoration to divide the metal decoration into two parts, and the third slit is communicated with the mounting hole, so that when the near field communication coil 22 transmits the differential excitation current, the transmission direction of the induced current generated in the metal decoration can be changed, the direction of the differential excitation current transmitted by the near field communication coil 22 is perpendicular to the direction of the induced current generated in the metal decoration, orthogonal polarization is formed, the interference of the induced magnetic field formed in the metal decoration on the near field communication signal is reduced, and the performance of the NFC antenna can be further improved.

It will be appreciated that the camera module 60 may also include a plurality of cameras, and when the camera module 60 includes a plurality of cameras, the near field communication coil 22 may be disposed around the periphery of at least one camera, for example, the near field communication coil 22 may be disposed around the periphery of one camera, and the near field communication coil 22 may also be disposed around the periphery of two cameras.

It will be appreciated that when the camera module 60 comprises a plurality of cameras, the near field communication coil 22 may also be disposed around the periphery of the metal trim piece.

Wherein, the quantity of camera can be two, three or four etc. and the quantity of camera can carry out nimble setting according to actual need.

The following description will be made in detail by taking an example in which the camera module 60 includes two cameras.

With continuing reference to fig. 6 and fig. 9, fig. 9 is a schematic view of a first connection structure of a camera module and a nfc coil according to an embodiment of the present disclosure. The camera module 60 includes two cameras 61 and a metal decoration 62, and the metal decoration 62 is provided around each camera 61. Two cameras such as a first camera 61a and a second camera 61 b.

The metal decoration member 62 is provided with two mounting holes 621, such as a first mounting hole 621a and a second mounting hole 621b, the first mounting hole 621a being used to mount one first camera 61a, and the second mounting hole 621b being used to mount a second camera 61 b.

The metallic decoration 62 is further provided with a fourth slit 622 and a fifth slit 623, the fourth slit 622 is disposed adjacent to the first mounting hole 621a, the fourth slit 622 penetrates through the metallic decoration 62 to divide the metallic decoration 62 into two parts, the fifth slit 623 is disposed between the first mounting hole 621a and the second mounting hole 621b, and the fourth slit 622, the fifth slit 623, the first mounting hole 621a and the second mounting hole 621b communicate with each other, so that the fourth slit 622, the first mounting hole 621a, the second mounting hole 621b and the fifth slit 623 can be integrally formed.

When the near field communication coil 22 is disposed around the metal decoration 62, since the fourth slit 622 and the fifth slit 623 are disposed in the metal decoration 62, when the near field communication coil 22 transmits the differential excitation current, the transmission direction of the induced current generated in the metal decoration 62 may be changed, so that the direction of the differential excitation current transmitted by the near field communication coil 22 and the direction of the induced current generated in the metal decoration 62 are perpendicular to each other, and orthogonal polarization is formed, so as to reduce the interference of the induced magnetic field formed in the metal decoration 62 on the near field communication signal, thereby further improving the performance of the NFC antenna.

It can be understood that, referring to fig. 7 and fig. 10 together, fig. 10 is a schematic diagram of a second connection structure of the camera module and the nfc coil according to an embodiment of the present application; the camera module 60 may also include three cameras 61 and a metal decoration 62, the three cameras 61 are such as a first camera 61a, a second camera 61a and a third camera 61c, the metal decoration 62 is provided with three mounting holes 621, the three mounting holes 621 are such as a first mounting hole 621a, a second mounting hole 621b and a third mounting hole 621c, the first mounting hole 621a is used for mounting the first camera 61a, the second mounting hole 621b is used for mounting the second camera 61b, the third mounting hole 621c is used for mounting the third camera 61 c.

Wherein the metal decoration 62 is further provided with three slits such as a fourth slit 622, a fifth slit 623 and a sixth slit 624, the fourth slit 622 is disposed adjacent to the first mounting hole 621a, the fourth slit 622 is disposed through the metal decoration 62, to divide the metallic decoration piece 62 into two parts, the fifth slit 623 is positioned between the first and second mounting

holes

621a and 621b, the sixth slit 624 is positioned between the second and third mounting

holes

621b and 621c, and the fourth slit 622, the fifth slit 623, the sixth slit 624, the first mounting hole 621a, the second mounting hole 621b, and the third mounting hole 621c communicate with each other, so that the third mounting hole 621c, the sixth slit 624, the second mounting hole 621b, the fifth slit 623, the first mounting hole 621a, and the fourth slit 622 may be integrally formed therebetween.

When the near field communication coil 22 is disposed around the metal decoration 62, since the fourth slot 622, the fifth slot 623 and the sixth slot 624 are disposed in the metal decoration 62, when the near field communication coil 22 transmits the differential excitation current, the transmission direction of the induced current generated in the metal decoration 62 may be changed, so that the direction of the differential excitation current transmitted by the near field communication coil 22 and the direction of the induced current generated in the metal decoration 62 are perpendicular to each other, and orthogonal polarization is formed, so as to reduce the interference of the induced magnetic field formed in the metal decoration 62 on the near field communication signal, thereby further improving the performance of the NFC antenna.

Referring to fig. 11, fig. 11 is a second structural schematic diagram of an antenna device and a camera module in an electronic device according to an embodiment of the present disclosure. The antenna device 200 further includes a first non-near-field communication chip 26 and a second non-near-field communication chip 27. Wherein the first non-near-field communication chip 26 is such as IC1 and the second non-near-field communication chip 27 is such as IC 2. It will be appreciated that both the first non-near-field communication chip 26 and the second non-near-field communication chip 27 may be integrated on the circuit board 30 of the electronic device 100.

The first non-near-field communication chip 26 is for providing a first non-near-field communication excitation signal. Wherein the first non-near-field communication excitation signal is an unbalanced signal. The first non-near-field communication excitation signal may include one of a cellular network signal, a Wireless Fidelity (Wi-Fi) signal, a Global Positioning System (GPS) signal, and a Bluetooth (BT) signal. Accordingly, the first non-near-field communication chip 26 may be a cellular communication chip for providing the cellular network signal; the first non-near-field communication chip 26 may be a Wi-Fi chip for providing the Wi-Fi signals; the first non-near-field communication chip 26 may be a GPS chip for providing the GPS signal; the first non-near-field communication chip 26 may also be a BT chip for providing the BT signal.

The first conductor structure 23 further comprises a third feeding end 233. The third feeding end 233 is disposed at an interval with the first feeding end 231 and the first grounding end 232. The third feeding end 233 is electrically connected to the first non-near-field communication chip 26, and the first non-near-field communication chip 26 is grounded. Thereby, the first non-near-field communication chip 26 may feed the first non-near-field communication excitation signal to the first conductor structure 23 through the third feeding terminal 223. Thus, the first conductor structure 23 may also be used for transmitting the first non-near-field communication excitation signal.

It can be understood that the first conductor structure 23 can be used for transmitting both the differential excitation current signal provided by the NFC IC21 and the first non-near-field communication excitation signal provided by the first non-near-field communication chip 26, so that multiplexing of the first conductor structure 23 can be achieved, the number of conductor structures used for transmitting wireless signals in the electronic device 100 can be reduced, and the internal space of the electronic device 100 can be saved.

It should be noted that the frequency of the NFC signal is usually 13.56MHz (megahertz), the frequency of the cellular network signal is usually above 700MHz, the frequency of the Wi-Fi signal is usually 2.4GHz (gigahertz) or 5GHz, the frequency of the GPS signal usually includes multiple frequency bands such as 1.575GHz, 1.227GHz, 1.381GHz, 1.841GHz, and the frequency of the BT signal is usually 2.4 GHz. Thus, the NFC signal is a low frequency signal and the cellular network signal, Wi-Fi signal, GPS signal, BT signal are all high frequency signals relative to the cellular network signal, Wi-Fi signal, GPS signal, BT signal. Alternatively, it may be understood that the NFC signal is a low-frequency signal, the first non-near-field communication excitation signal is a high-frequency signal, and the frequency of the NFC signal is smaller than the frequency of the first non-near-field communication excitation signal.

In addition, when transmitting wireless signals, the lower the frequency of the wireless signals is, the longer the length of the required radiator is; the higher the frequency of the radio signal, the shorter the required radiator length. That is, a length of a radiator required to transmit the NFC signal is greater than a length of a radiator required to transmit the first non-near-field communication excitation signal.

Therefore, in the first conductor structure 23, the distance between the first feeding end 231 and the first ground end 232 is greater than the distance between the third feeding end 233 and the first ground end 232. Thus, in the first conductor structure 23, the length of the radiator for transmitting the NFC signal may be made larger than the length of the radiator for transmitting the first non-near-field communication excitation signal.

In addition, in order to reduce the overall length of the first conductor structure 23, the third feeding terminal 233 may be disposed on the same side of the first grounding terminal 232 as the first feeding terminal 231. That is, the third feeding end 233 is located between the first feeding end 231 and the first grounding end 232. Compared to the third feeding end 233 and the first feeding end 231 being located on different sides of the first ground end 232, the third feeding end 233 and the first feeding end 231 being located on the same side of the first ground end 232 may multiplex a portion between the third feeding end 233 and the first ground end 232, so that the overall length of the first conductor structure 23 may be reduced.

The second non-near-field communication chip 27 is configured to provide a second non-near-field communication excitation signal. Wherein the second non-near-field communication excitation signal is an unbalanced signal. The second non-near-field communication excitation signal may comprise one of a cellular network signal, a wireless fidelity signal (Wi-Fi signal), a global positioning system signal (GPS signal), a bluetooth signal (BT signal). Accordingly, the second non-near-field communication chip 27 may be a cellular communication chip for providing the cellular network signal; the second non-near-field communication chip 27 may be a Wi-Fi chip for providing the Wi-Fi signals; the second non-near-field communication chip 27 may be a GPS chip for providing the GPS signal; the second non-near-field communication chip 27 may also be a BT chip for providing the BT signal.

It should be noted that the second non-near-field communication excitation signal and the first non-near-field communication excitation signal may be signals of the same communication type or signals of different communication types. Accordingly, the second non-near-field communication chip 27 and the first non-near-field communication chip 26 may be the same type of chip or different types of chips.

The second conductor structure 24 further comprises a fourth feeding end 243. The fourth feeding end 243 is spaced apart from the second feeding end 241 and the second grounding end 242. The fourth feeding terminal 233 is electrically connected to the second non-near-field communication chip 27, and the second non-near-field communication chip 27 is grounded. Thereby, the second non-near-field communication chip 27 may feed the second non-near-field communication signal to the second conductor structure 24 through the fourth feeding end 243. Thus, the second conductor structure 24 may also be used for transmitting the second non-near-field communication excitation signal.

It can be understood that the second conductor structure 24 can be used for transmitting both the differential excitation current signal provided by the NFC IC21 and the second non-near-field communication excitation signal provided by the second non-near-field communication chip 27, so that multiplexing of the second conductor structure 24 can be achieved, the number of conductor structures used for transmitting wireless signals in the electronic device 100 can be further reduced, and the internal space of the electronic device 100 can be further saved.

Similarly, in the second conductor structure 24, the distance between the second feeding end 241 and the second grounding end 242 is greater than the distance between the fourth feeding end 243 and the second grounding end 242. Thus, the length of the radiator for transmitting the NFC signal may be made greater than the length of the radiator for transmitting the second non-near-field communication excitation signal in the second conductor structure 24.

In addition, in order to reduce the overall length of the second conductor structure 24, the fourth feeding end 243 may be disposed on the same side of the second grounding end 242 as the second feeding end 241. That is, the fourth feeding end 243 is located between the second feeding end 241 and the second grounding end 242. Compared with the fourth feeding end 243 and the second feeding end 241 being located on different sides of the second ground end 242, the portion between the fourth feeding end 243 and the second ground end 242 can be multiplexed by the fourth feeding end 243 and the second feeding end 241 being located on the same side of the second ground end 242, so that the overall length of the second conductor structure 24 can be reduced.

Referring to fig. 12, fig. 12 is a schematic view of a third structure of an antenna device and a camera module in an electronic device according to an embodiment of the present application. The antenna device 200 further includes a first matching circuit M1, a second matching circuit M2, a third matching circuit M3, a first filter circuit LC1, a second filter circuit LC2, a third filter circuit LC3, and a fourth filter circuit LC 4. It will be appreciated that the matching circuit may also be referred to as a matching network, a tuning circuit, a tuning network, etc. The filter circuit may also be referred to as a filter network.

The first matching circuit M1 is electrically connected to the first differential signal terminal 211 of the NFC IC21, the second differential signal terminal 212 of the NFC IC21, the first feeding terminal 231 of the first conductor structure 23, and the second feeding terminal 241 of the second conductor structure 24, respectively. The first matching circuit M1 is used for matching the impedance of the conductive loop when transmitting the differential excitation current. Wherein the conductive loop is a conductive loop formed by the near field communication coil 22, the first conductor structure 23, a conductive path on the ground plane 25, and the second conductor structure 24.

The first matching circuit M1 includes a first input terminal a, a second input terminal b, a first output terminal c, and a second output terminal d. The first input end a is electrically connected to the first differential signal end 211 of the NFCIC21, the second input end b is electrically connected to the second differential signal end 212 of the NFC IC21, the first output end c is electrically connected to the first feeding end 231 of the first conductor structure 23, and the second output end d is electrically connected to the second feeding end 241 of the second conductor structure 24.

The first filter circuit LC1 is disposed between the first differential signal terminal 211 of the NFCIC21 and the first input terminal a of the first matching circuit M1. The first filter circuit LC1 is configured to filter a first interference signal between the first differential signal terminal 211 and the first input terminal a. The first interference signal is an electrical signal other than the differential excitation current provided by the NFC IC 21.

The second filter circuit LC2 is disposed between the second differential signal terminal 212 of the NFC IC21 and the second input terminal b of the first matching circuit M1. The second filter circuit LC2 is configured to filter a second interference signal between the second differential signal terminal 212 and the second input terminal b. The second interference signal is an electrical signal other than the differential excitation current provided by the NFC IC 21.

The second matching circuit M2 is electrically connected to the first non-near-field communication chip 26 and the third feeding end 233 of the first conductor structure 23, respectively. The second matching circuit M2 is used to match the impedance of the first conductor structure 23 when transmitting the first non-near-field communication excitation signal.

The third filter circuit LC3 is disposed between the first non-near-field communication chip 26 and the second matching circuit M2. The third filter circuit LC3 is used to filter out a third interference signal between the first non-near-field communication chip 26 and the second matching circuit M2. The third interference signal is an electrical signal other than the first non-near-field communication excitation signal provided by the first non-near-field communication chip 26.

The third matching circuit M3 is electrically connected to the second non-near-field communication chip 27 and the fourth feeding end 243 of the second conductor structure 24, respectively. The third matching circuit M3 is used to match the impedance of the second conductor structure 24 when transmitting the second non-near-field communication excitation signal.

The fourth filter circuit LC4 is disposed between the second non-near-field communication chip 27 and the third matching circuit M3. The fourth filter circuit LC4 is used to filter out a fourth interference signal between the second non-near-field communication chip 27 and the third matching circuit M33. The fourth interference signal is an electrical signal other than the second non-near-field communication excitation signal provided by the second non-near-field communication chip 27.

It should be understood that the first matching circuit M1, the second matching circuit M2, and the third matching circuit M3 may include any series or parallel circuit of capacitors and inductors. The first filter circuit LC1, the second filter circuit LC2, the third filter circuit LC3, and the fourth filter circuit LC4 may also include a circuit formed by any series connection or any parallel connection of capacitors and inductors.

Referring to fig. 13, fig. 13 is a fourth schematic structural diagram of an antenna device and a camera module in an electronic device according to an embodiment of the present application.

The first matching circuit M1 may include, for example, four capacitors C1, C2, C3, C4. The capacitor C1 is connected in series with the first differential signal terminal 211 of NFCIC21, and the capacitor C2 is connected in series with the second differential signal terminal 212 of NFCIC 21. The capacitor C3 is connected in series with the capacitor C4 and after series connected in parallel with the NFC IC21, and between the capacitor C3 and the capacitor C4 is grounded. It is understood that the capacitance values of the capacitors C1, C2, C3 and C4 can be set according to actual needs.

The first filter circuit LC1 may include, for example, an inductor L1 and a capacitor C5. Wherein an inductor L1 is connected in series between the first differential signal terminal 211 and the first matching circuit M1, and a capacitor C5 is connected in parallel with the NFCIC21 and to ground. It is understood that the inductance of the inductor L1 and the capacitance of the capacitor C5 can be set according to actual needs.

The second filter circuit LC2 may include, for example, an inductor L2 and a capacitor C6. Wherein an inductor L2 is connected in series between the second differential signal terminal 212 and the first matching circuit M1, and a capacitor C6 is connected in parallel with the NFCIC21 and to ground. It is understood that the inductance of the inductor L2 and the capacitance of the capacitor C6 can be set according to actual needs.

The second matching circuit M2 may include, for example, capacitors C7, C8. Wherein the capacitance C7 is connected in series between the third feeding end 233 of the first conductor structure 23 and the first non-near-field communication chip 26, and the capacitance C8 is connected in parallel with said first non-near-field communication chip 26 and to ground. It is understood that the capacitance values of the capacitors C7 and C8 can be set according to actual needs.

The third filter circuit LC3 may include, for example, an inductor L3 and a capacitor C9. Wherein the inductor L3 is connected in series between the first non-near-field communication chip 26 and the second matching circuit M2, and the capacitor C9 is connected in parallel with the first non-near-field communication chip 26 and grounded. It is understood that the inductance of the inductor L3 and the capacitance of the capacitor C9 can be set according to actual needs.

The third matching circuit M3 may include, for example, capacitors C10, C11. Wherein the capacitance C10 is connected in series between the fourth feeding end 243 of the second conductor structure 24 and the second non-near-field communication chip 27, and the capacitance C11 is connected in parallel with the second non-near-field communication chip 27 and to ground. It is understood that the capacitance values of the capacitors C10 and C11 can be set according to actual needs.

The fourth filter circuit LC4 may include, for example, an inductor L4 and a capacitor C12. Wherein, the inductor L4 is connected in series between the second non-near-field communication chip 27 and the third matching circuit M3, and the capacitor C12 is connected in parallel with the second non-near-field communication chip 27 and grounded. It is understood that the inductance of the inductor L4 and the capacitance of the capacitor C12 can be set according to actual needs.

The antenna device and the electronic device provided in the embodiments of the present application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An antenna device, comprising:

2. The antenna device according to claim 1, characterized in that the first near field communication radiation field at least partially overlaps with the second near field communication radiation field and the third near field communication radiation field.

3. The antenna device of claim 1, further comprising a ground plane, wherein:

the near field communication chip comprises a first differential signal end and a second differential signal end, and the first differential signal end and the second differential signal end are used for providing the differential excitation current;

the ground plane comprises a first ground point and a second ground point which are arranged at intervals, and the ground plane forms a conductive path between the first ground point and the second ground point;

the first conductor structure comprises a first feed end and a first grounding end which are arranged at intervals, the first feed end is electrically connected with the first differential signal end through the near field communication coil, and the first grounding end is electrically connected with the first grounding point;

the second conductor structure comprises a second feed end and a second grounding end which are arranged at intervals, the second feed end is electrically connected with the second differential signal end, and the second grounding end is electrically connected with the second grounding point;

wherein the near field communication coil, the first conductor structure, the conductive path, and the second conductor structure collectively form a conductive loop for transmission of the differential excitation current.

4. The antenna device of claim 3, wherein:

when the first differential signal end of the near field communication chip is a positive electrode, the differential excitation current in the near field communication coil is transmitted along the counterclockwise direction;

and when the first differential signal end of the near field communication chip is a negative electrode, the differential excitation current in the near field communication coil is transmitted along the clockwise direction.

5. The antenna device of claim 3, further comprising:

a first non-near-field communication chip for providing a first non-near-field communication excitation signal;

the first conductor structure further comprises a third feed end electrically connected to the first non-near-field communication chip, and the first conductor structure is further configured to transmit the first non-near-field communication excitation signal.

6. The antenna device of claim 3, further comprising:

a second non-near-field communication chip for providing a second non-near-field communication excitation signal;

the second conductor structure further comprises a fourth feed end electrically connected to the second non-near-field communication chip, and the second conductor structure is further configured to transmit the second non-near-field communication excitation signal.

7. The antenna device of claim 3, further comprising:

the first matching circuit is electrically connected with the first differential signal end, the second differential signal end, the first feed end and the second feed end respectively, and is used for matching impedance when the conductive loop transmits the differential excitation current.

8. The antenna device of claim 5, further comprising:

and the second matching circuit is electrically connected with the first non-near-field communication chip and the third feed end respectively, and is used for matching the impedance of the first conductor structure when the first non-near-field communication excitation signal is transmitted.

9. The antenna device of claim 6, further comprising:

and the third matching circuit is electrically connected with the second non-near-field communication chip and the fourth feed end respectively, and is used for matching the impedance of the second conductor structure when the second non-near-field communication excitation signal is transmitted.

10. An electronic device, characterized in that it comprises an antenna arrangement according to any of claims 1-9.

11. The electronic device of claim 10, further comprising:

a metal rear cover provided with an opening;

the camera module set up in the opening, the near field communication coil centers on the camera module sets up.

12. The electronic device of claim 11, further comprising:

the middle frame is connected with the metal rear cover, a first metal branch knot and a second metal branch knot are arranged on the middle frame, the first metal branch knot forms the first conductor structure, and the second metal branch knot forms the second conductor structure.

13. The electronic device of claim 11, wherein a first metal branch and a second metal branch are disposed on the metal back cover, the first metal branch forming the first conductor structure, and the second metal branch forming the second conductor structure.

14. The electronic device of claim 13, wherein a first gap and a second gap are spaced apart from each other on the metal back cover to form the first metal stub and the second metal stub on the metal back cover.

15. The electronic device according to claim 14, wherein the metal rear cover is provided with a through hole, the through hole is disposed between the opening and the first gap, and the through hole is communicated with the opening and the first gap, so that the near field communication coil sequentially passes through the opening, the through hole, and the first gap to transmit the differential excitation current to the outside of the electronic device.

16. The electronic device of any of claims 11-15, wherein the camera module comprises a plurality of cameras, and wherein the near field communication coil is disposed around at least one of the cameras.

17. The electronic device according to any one of claims 11-15, wherein the camera module comprises at least one camera and a metal decoration, the metal decoration is provided with at least one mounting hole, one camera is provided in one mounting hole, and the near field communication coil is provided around the metal decoration.

18. The electronic device according to claim 17, wherein the metal decoration is further provided with a third slit which is provided through the metal decoration to divide the metal decoration into two parts, and the third slit communicates with the mounting hole so that a direction of an induced current generated in the metal decoration and a direction in which the near field communication coil transmits the differential excitation current are perpendicular to each other.

19. The electronic device of any of claims 11-15, wherein the camera module comprises a first camera, a second camera, a third camera, and a metallic trim piece;

the metal decorating part is provided with a first mounting hole, a second mounting hole and a third mounting hole at intervals, the first camera is arranged in the first mounting hole, the second camera is arranged in the second mounting hole, the third camera is arranged in the third mounting hole, and the near field communication coil surrounds the metal decorating part.

20. The electronic device according to claim 19, wherein the metal garnish is further provided with a fourth slit, a fifth slit, and a sixth slit, the fourth slit is provided through the metal garnish to divide the metal garnish into two parts, the fifth slit is located between the first mounting hole and the second mounting hole, the sixth slit is located between the second mounting hole and the third mounting hole, and the fourth slit, the fifth slit, the sixth slit, the first mounting hole, the second mounting hole, and the third mounting hole communicate with each other so that a direction of induced current generated in the metal garnish and a direction in which the near-field communication coil transmits the differential excitation current are perpendicular to each other.