CN215342969U

CN215342969U - Antenna device and electronic apparatus

Info

Publication number: CN215342969U
Application number: CN202121582023.XU
Authority: CN
Inventors: 任韬
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-12-28
Anticipated expiration: 2031-07-12

Abstract

The application provides an antenna device and an electronic device, a second radiation part and a third radiation part of a first radiation body of the antenna device are connected in parallel to the first radiation part, a first gap exists between the second radiation part and the first radiation part, the first radiation part and the second radiation part can transmit a first wireless signal together, the first radiation part and the third radiation part can transmit a second wireless signal together, the second radiation part can be electromagnetically coupled with the first radiation part and independently transmit a third wireless signal, and the second radiation part can also be electromagnetically coupled with the first radiation part and transmit a fourth wireless signal together. Based on this, the antenna device of this application can transmit the radio signal of four kinds of different frequency channels, can realize antenna device's miniaturized design.

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 rapid development of communication technology, electronic devices have become an indispensable tool in people's life, and bring great convenience to various aspects of users' life. Generally, a plurality of antennas are provided on an electronic device, and particularly, the frequency bands and the number of the antennas of the 5G device will be more and more in the future.

In the related art, in order to implement more antennas or cover more frequency bands, more antenna radiators or more complicated circuit structures need to be arranged on the electronic device to implement more antenna coverage. However, more antenna radiators occupy more space, and electronic devices cannot be miniaturized; more complex circuit structures require more tuners or switching elements and the cost of the electronic device is higher.

Disclosure of Invention

The application provides an antenna device and electronic equipment, and the antenna device can cover a plurality of frequency channels, and the space that the antenna device occupy is less.

In a first aspect, the present application provides an antenna apparatus comprising:

the first radiator comprises a first radiation part, a second radiation part and a third radiation part, a feed point is arranged on the first radiation part, the second radiation part and the third radiation part are connected in parallel to the first radiation part, and the first radiator is grounded; and

a second radiator, which forms a first gap with the first radiator and is grounded;

wherein the first radiating part and the second radiating part commonly transmit a first wireless signal, and the first radiating part and the third radiating part commonly transmit a second wireless signal; the second radiator is electromagnetically coupled with the first radiation part through the first gap, the second radiator transmits a third wireless signal, and the second radiator and the first radiation part jointly transmit a fourth wireless signal.

In a second aspect, the present application also provides an electronic device comprising an antenna arrangement as described above.

The application provides an antenna device and electronic equipment, the second radiation portion and the third radiation portion of first irradiator connect in parallel in first radiation portion, there is first clearance between second irradiator and the first radiation portion, first radiation portion and second radiation portion can transmit first radio signal jointly, first radiation portion and third radiation portion can transmit second radio signal jointly, the second irradiator can with first radiation portion electromagnetic coupling and alone transmit the third radio signal, the second irradiator also can pass through electromagnetic coupling and jointly transmit the fourth radio signal with first radiation portion. Based on this, the antenna device of this application can transmit the radio signal of four kinds of different frequency channels through setting for the form and the position relation of first irradiator and second irradiator, and antenna device need not additionally set up frequency modulation circuit and frequency modulation switch, can save antenna device's cost of manufacture, and antenna device's simple structure, small in size simultaneously, this application can realize antenna device's miniaturized design.

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 view of a first structure of an antenna device according to an embodiment of the present application.

Fig. 2 is a first current diagram of the antenna device shown in fig. 1.

Fig. 3 is a second current diagram of the antenna device shown in fig. 1.

Fig. 4 is a third current diagram of the antenna device shown in fig. 1.

Fig. 5 is a fourth current diagram of the antenna device shown in fig. 1.

Fig. 6 is a graph of S-parameters of the antenna device shown in fig. 1.

Fig. 7 is a schematic structural diagram of the first radiator shown in fig. 1.

Fig. 8 is a schematic diagram of a second structure of an antenna apparatus according to an embodiment of the present application.

Fig. 9 is a schematic structural diagram of a third antenna device according to an embodiment of the present application.

Fig. 10 is a graph of the S-parameter of the first inductor shown in fig. 9 at different inductance values.

Fig. 11 is a schematic structural diagram of 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 fig. 1 to 11 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 inventive step, are within the scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiment of the present application provides an antenna device 100, and the antenna device 100 can implement a wireless communication function. For example, the antenna device 100 may transmit Wireless Fidelity (Wi-Fi) signals, Global Positioning System (GPS) signals, 3th-Generation (3G) signals, 4th-Generation (4G) signals, 5th-Generation (5G) signals, Near Field Communication (NFC) signals, bluetooth signals, ultra wide band communication signals, and the like.

Referring to fig. 1, fig. 1 is a first structural schematic diagram of an antenna device 100 according to an embodiment of the present disclosure. The antenna device 100 may include a first radiator 110, a second radiator 120, and a feed 130.

The feed 130 may be directly or indirectly electrically connected to the first radiator 110, and the feed 130 may provide an excitation signal to the first radiator 110, and the excitation signal may excite the first radiator 110 and the second radiator 120 to transmit wireless signals.

The first radiator 110 may include a first radiation part 111, a second radiation part 112, and a third radiation part 113. The first radiating portion 111 is provided with a feeding point 114, and the feeding point 114 can be electrically connected to the feed 130 to receive the excitation signal provided by the feed 130. The second radiation portion 112 may be connected to the first radiation portion 111, the third radiation portion 113 may also be connected to the first radiation portion 111, and the third radiation portion 113 may be connected to the first radiation portion 111 in parallel with the second radiation portion 112, so that the excitation signal provided by the feed 130 may flow from the feeding point 114 through the first radiation portion 111 and may flow through the second radiation portion 112, and may also flow from the first radiation portion 111 through the third radiation portion 113.

It is understood that the second radiation part 112 and the third radiation part 113 may extend toward the same direction, so that the second radiation part 112 and the third radiation part 113 are better connected in parallel to the first radiation part 111. Of course, the second radiation portion 112 and the third radiation portion 113 may also extend in different directions, which is not limited in the embodiment of the present application.

It is understood that the first, second and

third radiation parts

111, 112 and 113 may be an integrally formed structure to facilitate the first radiator 110 to transmit wireless signals. Of course, the first radiation portion 111, the second radiation portion 112, and the third radiation portion 113 may be connected together by other connectors or connection structures instead of being formed integrally, and the specific structure of the first radiator 110 is not limited in the embodiment of the present application.

The first radiator 110 may be electrically connected to a ground plane (not shown) to achieve grounding. For example, one or more first grounding points 115 may be disposed on the first radiator 110, and the first grounding points 115 may be grounded.

It is understood that the first ground point 115 may be disposed on the first radiation portion 111, the second radiation portion 112, or the third radiation portion 113. The embodiment of the present application does not limit the specific position of the first ground point 115.

The second radiator 120 may be spaced apart from the first radiator 110, the second radiator 120 may form a first gap 101 with the first radiation part 111 of the first radiator 110, and the second radiator 120 may be electromagnetically coupled with the first radiation part 111 through the first gap 101 when the first radiation part 111 transmits an excitation signal.

The second radiator 120 may be electrically connected to a ground plane to realize grounding. For example, one or more second ground points 121 may be disposed on the second radiator 120, and the second ground points 121 may be grounded.

The first radiation part 111 and the second radiation part 112 may transmit a first wireless signal together; the first radiation part 111 and the third radiation part 113 may commonly transmit a second wireless signal; the second radiator 120 may be electromagnetically coupled to the first radiation part 111 through the first gap 101, and the second radiator 120 may separately transmit a third wireless signal; the second radiator 120 may also be electromagnetically coupled to the first radiation part 111 through the first gap 101, and may transmit the fourth wireless signal together with the first radiation part 111.

Referring to fig. 2 to fig. 5 in combination with fig. 1, fig. 2 is a first current schematic diagram of the antenna device 100 shown in fig. 1, fig. 3 is a second current schematic diagram of the antenna device 100 shown in fig. 1, fig. 4 is a third current schematic diagram of the antenna device 100 shown in fig. 1, and fig. 5 is a fourth current schematic diagram of the antenna device 100 shown in fig. 1.

As shown in fig. 2, when the feed 130 feeds the excitation signal to the feeding point 114, the current may be mainly distributed in the first radiation part 111 and the second radiation part 112, and the first radiation part 111 and the second radiation part 112 may transmit the first wireless signal in a mode of quarter λ. As shown in fig. 3, when the feed 130 feeds the excitation signal to the feeding point 114, the current may be mainly distributed in the first radiation part 111 and the third radiation part 113, and the first radiation part 111 and the third radiation part 113 may transmit the second wireless signal in a mode of quarter λ. As shown in fig. 4, when the feed 130 feeds the excitation signal to the feeding point 114, the second radiator 120 may be electromagnetically coupled through the first gap 101 and generate an induced current, which may be distributed on the second radiator 120, and the second radiator 120 may transmit a third wireless signal in a quarter λ mode. As shown in fig. 5, when the feed 130 feeds an excitation signal to the feeding point 114, the second radiator 120 may electromagnetically couple through the first gap 101 and generate an induced current, and the excitation current may also flow at least on the first radiation part 111 (as shown in fig. 5, the excitation current may flow on the first radiation part 111 and the third radiation part 113), and in this case, the second radiator 120 may jointly transmit a fourth wireless signal in a quarter λ mode and the first radiation part 111 (and the third radiation part 113) may jointly transmit a fourth wireless signal in a three-quarter λ mode.

It is to be understood that the first wireless signal, the second wireless signal, the third wireless signal and the fourth wireless signal may be wireless signals of different frequency bands.

It is understood that the feed 130 may provide the carrier aggregation signal of the first to fourth wireless signals to the feeding point 114, so that the first radiator 110 and the second radiator 120 may simultaneously transmit the first to fourth wireless signals. Of course, the feed 130 may also provide one or more wireless signals to the feeding point 114, so that the first radiator 110 and the second radiator 120 transmit one or more wireless signals of the first to fourth wireless signals.

It can be understood that the lengths and the shapes of the first radiator 110 and the second radiator 120 may be adjusted so that the first radiator 110 and the second radiator 120 may transmit the first to fourth wireless signals of the preset frequency band.

For example, please refer to fig. 6 in conjunction with fig. 2 to 5, and fig. 6 is a graph of S-parameters of the antenna device 100 shown in fig. 1. As can be seen from the curve S1 in fig. 6, the first wireless signal may be a wireless signal in a B1 and/or B3 band, the second wireless signal may be a wireless signal in a B41 band, the third wireless signal is a wireless signal in an N78 band, and the fourth wireless signal is a wireless signal in an N79 band. The antenna device 100 of the embodiment of the application can transmit wireless signals of B3/B41/N78/N79 frequency band, and the antenna device 100 can cover medium-high frequency signals.

It should be understood that the above is only an exemplary example of the wireless signals transmitted by the antenna device 100, and the frequency ranges of the first to fourth wireless signals are not limited to the above example, and may also be wireless signals in other frequency bands, which is not limited in this embodiment of the application.

In the antenna device 100 of the embodiment of the application, the second radiation portion 112 and the third radiation portion 113 of the first radiation body 110 are connected in parallel to the first radiation portion 111, the first gap 101 exists between the second radiation body 120 and the first radiation portion 111, the first radiation portion 111 and the second radiation portion 112 may transmit a first wireless signal together, the first radiation portion 111 and the third radiation portion 113 may transmit a second wireless signal together, the second radiation body 120 may be electromagnetically coupled with the first radiation portion 111 and transmit a third wireless signal separately, and the second radiation body 120 may also be electromagnetically coupled with the first radiation portion 111 and transmit a fourth wireless signal together. Based on this, the antenna device 100 according to the embodiment of the present invention can transmit wireless signals of four different frequency bands by setting the form and the position relationship of the first radiator 110 and the second radiator 120, and the antenna device 100 does not need to additionally provide a frequency modulation circuit and a frequency modulation switch, so that the manufacturing cost of the antenna device 100 can be saved, and meanwhile, the antenna device 100 has a simple structure and a small size, and the antenna device 100 according to the embodiment of the present invention can be designed in a miniaturized manner.

Referring to fig. 7, fig. 7 is a schematic structural diagram of the first radiator 110 shown in fig. 1. Second radiating portion 112 may include first radiating segment 1121 and second radiating segment 1122 that are connected to one another.

One end of the first radiation section 1121 may be connected to the first radiation portion 111, the other end of the first radiation section 1121 may be connected to one end of the second radiation section 1122, the other end of the second radiation section 1122 may be bent toward the direction of the third radiation portion 113 and extended to a side of the third radiation portion 113 away from the first radiation section 1121, so that a second gap 102 may be formed between the first radiation section 1121 and the third radiation portion 113, and a third gap 103 may be formed between the second radiation section 1122 and the third radiation portion 113.

It is understood that the first radiation segment 1121 and the second radiation segment 1122 can form a ring structure that can surround an end of the third radiation portion 113 away from the first radiation portion 111, so that the first radiation segment 1121, the third radiation portion 113 and the second radiation segment 1122 can be stacked.

It can be understood that, when the first radiation portion 111 and the second radiation portion 112 transmit the first wireless signal, since the first radiation segment 1121 and the second radiation segment 1122 of the second radiation portion 112 surround the third radiation portion 113, and the third radiation portion 113 can be electromagnetically coupled to the second radiation portion 112 through the second gap 102 and the third gap 103, the third radiation portion 113 can generate an induced current, the induced current can form an induced magnetic field that resonates with the frequency of the first wireless signal, and the induced magnetic field can be overlapped with the magnetic field of the first wireless signal, so that the frequency band of the first wireless signal transmitted by the first radiation portion 110 is wider and the performance is better.

Similarly, when the first radiation part 111 and the third radiation part 113 transmit the second wireless signal, since the third radiation part 113 is surrounded by the first radiation section 1121 and the second radiation section 1122 of the second radiation part 112, the third radiation part 113 may also be electromagnetically coupled to the second radiation part 112 through the second gap 102 and the third gap 103, the second radiation part 112 may generate an induced current, and a magnetic field generated by the induced current may be superimposed with a magnetic field of the second wireless signal, so that the frequency band of the second wireless signal transmitted by the first radiation part 110 is wider and the performance is better.

It is understood that the second radiation part 112 and the third radiation part 113 may be extended toward a direction away from the second radiator 120, so that the second radiation part 112 and the third radiation part 113 may be located at a side of the first radiation part 111 away from the second radiator 120. At this time, the second radiator 120 and the

third radiator

112 and 113 are far apart from each other, so that the second radiator 120 and the third radiator 113 are less susceptible to electromagnetic coupling when transmitting wireless signals, and the second radiator 112, the third radiator 113 and the second radiator 120 are highly isolated from each other.

On a side of the third radiation portion 113 away from the first radiation section 1121, the second radiation section 1122 may be disposed flush with the third radiation portion 113. For example, in fig. 7, the third radiating portion 113 includes a first end (not shown) and a second end (not shown), the first end may be connected to the first radiating portion 111, the second end may be surrounded by the second radiating portion 112, the second end may be provided with a first notch 104 on one side of the first radiating section 1121, and a portion of the second radiating section 1122 may be located in the first notch 104. The first notch 104 makes the bottom edges of the first end and the second end not flush, and when the second radiating section 1122 is located in the first notch 104, the second radiating section 1122 away from the first edge a1 of the third gap 103 may be aligned with the second edge b1 of the second end of the third radiating portion 113, and the first edge a1 and the second edge b1 may be collinear.

In the antenna device 100 according to the embodiment of the present application, the second radiation section 1122 of the second radiation portion 112 is located in the first notch 104 of the third radiation portion 113, the second radiation section 1122 is flush with the third radiation portion 113, the space occupied by the antenna device 100 is small, and the antenna device 100 can be miniaturized.

Please refer to fig. 8, wherein fig. 8 is a second structural diagram of the antenna device 100 according to the embodiment of the present disclosure. The first gap 101 includes a first sub-gap 1011 and a second sub-gap 1012 communicating with each other. The second notch 105 is disposed on an edge of the first radiating portion 111 close to the second radiating portion 120, the second radiating portion 120 may include a main body portion 122 and an extending portion 123 connected to each other, at least a portion of the extending portion 123 may extend toward the direction close to the first radiating portion 111 and be disposed in the second notch 105, at this time, a first sub-gap 1011 may be formed between the main body portion 122 and the first radiating portion 111, and a second sub-gap 1012 may be formed between the extending portion 123 and the first radiating portion 111.

When the feeding point 114 receives the excitation signal provided by the feed source 130, the excitation signal may be electromagnetically coupled to the main body portion 122 and the extension portion 123 through the first sub-gap 1011 and the second sub-gap 1012, the second radiator 120 may separately transmit the third wireless signal, and the second radiator 120 may also transmit the fourth wireless signal together with the first radiating portion 111.

It can be understood that, when the extending direction of the second notch 105 is the same as the extending direction of the second radiation part 112 and the third radiation part 113, as shown in fig. 8, a part of the second sub-gap 1012 may also be formed between the extending portion 123 and the third radiation part 113, in this case, the second radiator 120 may also be electromagnetically coupled with the first radiation part 111 and the third radiation part 113 through the first sub-gap 1011 and the second sub-gap 1012, and the second radiator 120, the first radiation part 111 and the third radiation part 113 may jointly transmit the fourth wireless signal.

In the antenna device 100 of the embodiment of the application, the second radiator 120 is electromagnetically coupled to the first radiation part 111 and the third radiation part 113 through the first sub-gap 1011 and the second sub-gap 1012, on one hand, the lengths of the first sub-gap 1011 and the second sub-gap 1012 are longer, and the energy of the electromagnetic coupling of the second radiator 120 is larger, so that the second radiator 120 is more easily excited to transmit the third wireless signal and the fourth wireless signal; on the other hand, the extension 123 does not occupy additional space, and the antenna device 100 can be designed in a compact size.

It can be understood that, referring to fig. 8 again, in the length direction of the antenna device 100, the length L1 of the first radiating segment 1121 of the second radiating portion 112 may be 16mm, the length L2 of the second radiating segment 1122 may be 6mm, the length L3 of the third radiating portion 113 may be 13.5mm, and the length L4 of the extension portion 123 of the second radiator 120 may be 9 mm; the width L5 of the first radiation part 111 may be 5mm and the width L6 of the third radiation part 113 may be 1.4mm in the width direction of the antenna device 100, so that the antenna device 100 of the embodiment of the present application may have a size of 25mm × 6.4mm and the antenna device 100 may be designed in a compact size.

Referring to fig. 8 again, the first grounding point 115 of the first radiator 110 may be disposed on the first radiating portion 111 and may be disposed on a side of the first feeding point 114 away from the second radiator 120, the second grounding point 121 of the second radiator 120 may be disposed on the body portion 122, and the first grounding point 115 and the second grounding point 121 may be disposed on two sides of the feeding point 114, respectively.

It is understood that the first radiating portion 111 and the main body portion 122 may have a substantially rectangular structure, the second radiating portion 112, the third radiating portion 113 and the extension portion 123 may have a substantially elongated structure, the first grounding point 115 and the feeding point 114 are disposed on the first radiating portion 111, the second grounding point 121 is disposed on the main body portion 122, and the first grounding point 115, the feeding point 114 and the second grounding point 121 do not affect the structural strength of the first radiating portion 111 and the main body portion 122.

In the antenna device 100 of the embodiment of the application, the feeding point 114 is disposed between the first grounding point 115 and the second grounding point 121, the excitation signal fed from the feeding point 114 can flow toward the left to excite the second radiating portion 112 and the third radiating portion 113 to transmit the first and second wireless signals, and the excitation signal is more easily coupled to the fourth radiator through electromagnetic coupling, so that the performance of the antenna device 100 can be improved.

Please refer to fig. 9, wherein fig. 9 is a fourth structural diagram of the antenna device 100 according to the embodiment of the present application. The antenna device 100 may further include a first filter circuit 140 and a second filter circuit 150.

One end of the first filter circuit 140 may be electrically connected to the first ground point 115, and the other end of the first filter circuit 140 may be grounded, and the first filter circuit 140 may filter the wireless signal transmitted by the first radiator 110. One end of the second filter circuit 150 may be electrically connected to the second ground point 121, the other end of the second filter circuit 150 may be grounded, and the second filter circuit 150 may filter the wireless signal transmitted by the second radiator 120.

It is understood that the first filter circuit 140 may be any combination of one or more of a resistor, an inductor, and a capacitor. For example, the first filter circuit 140 may include a first inductor N1, and the first ground point 115 may be grounded through a first inductor N1. The inductance value of the first inductor N1 can be adjusted according to the actual situation.

For example, referring to fig. 10, fig. 10 is a graph of the S parameter of the first inductor N1 shown in fig. 9 at different inductance values. As shown in fig. 10, the curve S2 is a graph of the S parameter when the inductance value of the first inductor N1 is 0; the curve S3 is a curve of S parameter when the inductance value of the first inductor N1 is 1Nh (nanohenries); the curve S4 is a curve of S parameter when the inductance value of the first inductor N1 is 1.5Nh (nanohenries); the curve S5 is a graph of the S parameter when the inductance value of the first inductor N1 is 2Nh (nanohenries). As can be seen from the curves S2-S5, when the inductance of the first inductor N1 is 1.5Nh, the efficiency and bandwidth of the antenna device 100 for transmitting the first wireless signal of the B1/B3 band are more balanced, and the performance of the antenna device 100 is better.

Referring to fig. 9 again, the second filter circuit 150 may include a first resistor R1, the resistance of the first resistor R1 may be zero, and the second ground point 121 may be grounded through a zero-ohm first resistor R1.

Since the second radiator 120 is not directly electrically connected to the feed 130, when the second radiator 120 is grounded through the first resistor R1 of 0 ohm, the impedance and power consumption of the induced current generated by the second radiator 120 through electromagnetic coupling when the induced current returns to the ground are small, and the radiation performance of the second radiator 120 is better.

Referring to fig. 9 again, the antenna device 100 may further include a matching circuit 160. The matching circuit 160 may also be referred to as a matching network, a tuning circuit, a tuning network, etc.

One end of matching circuit 160 may be electrically connected to feed 130, the other end of matching circuit 160 may be electrically connected to feed 114, matching circuit 160 may be connected in series between feed 130 and feed 114, and matching circuit 160 may match the impedance of the excitation signal provided by feed 130.

It is understood that the matching circuit 160 may include a circuit composed of one or more capacitors, inductors, and resistors connected in series or in parallel. This is not limited in the embodiments of the present application.

Based on the structure of the antenna device 100, the embodiment of the present application further provides an electronic device 10, where the electronic device 10 may be a smart phone, a tablet computer, or other devices, and may also be a game device, an Augmented Reality (AR) 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. 11, fig. 11 is a schematic structural diagram of an electronic device 10 according to an embodiment of the present disclosure. The electronic device 10 includes a display screen 200, a middle frame 300, a circuit board 400, a battery 500, and a rear case 600.

The display screen 200 may be disposed on the middle frame 300 and connected to the rear case 600 through the middle frame 300 to form a display surface of the electronic device 10. The display 200 is used to display information such as images, text, and the like. The Display 200 may include a Liquid Crystal Display (LCD) 200 or an Organic Light-Emitting Diode (OLED) Display 200, and the like, for example.

The middle frame 300 may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The middle frame 300 is used to provide support for the electronic devices or functional components in the electronic device 10 to mount the electronic devices or functional components of the electronic device 10 together. For example, the middle frame 300 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 10. It is understood that the material of the middle frame 300 may include metal or plastic.

The circuit board 400 may be disposed on the middle frame 300 to be fixed, and the circuit board 400 is sealed inside the electronic device 10 by the rear case 600. The circuit board 400 may be a main board of the electronic device 10. The circuit board 400 may be provided with the aforementioned feed source 130, and the circuit board 400 may also be integrated with a processor, and may further be integrated with one or more of functional components such as an earphone interface, an acceleration sensor, a gyroscope, and a motor. Meanwhile, the display screen 200 may be electrically connected to the circuit board 400 to control the display of the display screen 200 by a processor on the circuit board 400.

The battery 500 is disposed on the middle frame 300, and the battery 500 is sealed inside the electronic device 10 by the rear case 600. Meanwhile, the battery 500 is electrically connected to the circuit board 400 to enable the battery 500 to power the electronic device 10. The circuit board 400 may be provided thereon with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 500 to the various electronic devices in the electronic device 10.

The rear case 600 is coupled to the middle frame 300. For example, the rear case 600 may be attached to the middle frame 300 by an adhesive such as a double-sided tape to achieve connection with the middle frame 300. The rear case 600 is used to seal the electronic devices and functional components of the electronic device 10 inside the electronic device 10 together with the middle frame 300 and the display screen 200, so as to protect the electronic devices and functional components of the electronic device 10.

The electronic device 10 may include the antenna apparatus 100 in the foregoing embodiments. The antenna device 100 is provided in the electronic apparatus 10.

For example, the antenna device 100 may be disposed on a housing of the electronic device 10 (i.e., a surface of the electronic device 10). For example, the antenna device 100 may be disposed on an outer surface of the rear case 600 of the electronic device 10 or when the rear case 600 includes a metal structure, the antenna device 100 may be a part of the rear case 600; the antenna device 100 may be disposed on the middle frame 300 of the electronic device 10, or when the middle frame 300 includes a metal structure portion, the antenna device 100 may be a part of the middle frame 300. For another example, the antenna device 100 may be provided inside the electronic apparatus 10. For example, the antenna device 100 may be, but is not limited to, a bottom plate of the middle frame 300 of the electronic device 10, the circuit board 400, a small plate of the electronic device 10, a main board, an antenna bracket of the electronic device 10, and the like.

Note that, any structure capable of carrying the antenna device 100 may be used as a carrying component of the antenna device 100 in the embodiment of the present application, and the specific position where the antenna device 100 is disposed on the electronic device 10 is not limited in the embodiment of the present application.

It is understood that the first radiator 110 and the second radiator 120 of the antenna device 100 may be FPC (flexible circuit board 400) radiators, and the first radiator 110 and the second radiator 120 may be formed on a small board of the electronic device 10. The distance between the metal parts under the projection of the first radiator 110 and the second radiator 120 and the first radiator 110 and the second radiator 120 may be 1.23mm, and the minimum clearance height of the antenna device 100 may be 1.23 mm.

It is understood that the antenna device 100 may be disposed in, but not limited to, an upper left region, a lower left region, an upper right region, a lower right region, a top region, and a top region of the electronic device 10. The present embodiment does not limit the specific installation position of the antenna device 100.

It is understood that the electronic device 10 may include one or more antenna apparatus 100, and when the electronic device 10 includes a plurality of antenna apparatus 100, the electronic device 10 may implement MIMO transmission of one or more wireless signals, which may increase the bandwidth of the electronic device 10.

It is to be understood that, in the description of the present application, terms such as "first", "second", and the like are used merely to distinguish similar objects and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

The antenna device 100 and the electronic device 10 provided in the embodiments of the present application are described in detail above. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of 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, wherein the second radiation portion and the third radiation portion are located on a side of the first radiation portion away from the second radiator.

3. The antenna device according to claim 2, wherein the second radiation portion includes a first radiation section and a second radiation section that are connected to each other, the second radiation section is bent toward a direction in which the third radiation portion is located and extends to a side of the third radiation portion away from the first radiation section, so that a second gap is formed between the first radiation section and the third radiation portion, a third gap is formed between the second radiation section and the third radiation portion, and the second radiation portion is electromagnetically coupled with the third radiation portion through the second gap and the third gap.

4. The antenna device according to claim 2, wherein the first gap includes a first sub-gap and a second sub-gap that are connected to each other, the first radiating portion has a notch near a side edge of the second radiating portion, the second radiating portion includes a main body portion and an extension portion that are connected to each other, at least a portion of the extension portion extends toward and is disposed in the notch, the main body portion and the first radiating portion form the first sub-gap therebetween, and the extension portion and the first radiating portion form the second sub-gap therebetween.

5. The antenna device according to claim 1, wherein a first grounding point is provided on the first radiating portion, a second grounding point is provided on the second radiating portion, and the second grounding point and the first grounding point are respectively provided on both sides of the feeding point.

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

and one end of the first filter circuit is electrically connected with the first grounding point, and the other end of the first filter circuit is grounded.

7. The antenna device according to claim 5, characterized in that the second grounding point is grounded through a zero ohm resistor.

8. The antenna device according to any one of claims 1 to 7, further comprising:

the feed source is electrically connected with the feed point and is used for feeding an excitation signal into the feed point;

and the matching circuit is connected between the feed source and the feed point in series and is used for matching the impedance of the excitation signal.

9. The antenna device according to any one of claims 1 to 7, wherein the first wireless signal is a wireless signal in a B1 or B3 band, the second wireless signal is a wireless signal in a B41 band, the third wireless signal is a wireless signal in an N78 band, and the fourth wireless signal is a wireless signal in an N79 band.

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