CN115000684A

CN115000684A - Antenna device and electronic apparatus

Info

Publication number: CN115000684A
Application number: CN202210580491.6A
Authority: CN
Inventors: 赵嘉城
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-09-02

Abstract

The application provides an antenna device and an electronic device, wherein at least part of a first radiator of the antenna device is arranged on a first side, a second radiator is arranged on a second side, at least part of a third radiator is arranged on a third side, and a fourth radiator is arranged on a fourth side; the first radiator and the third radiator are symmetrically arranged about a center point of the antenna device, and the second radiator and the fourth radiator are also symmetrically arranged about the center point, and the first radiator, the second radiator, the third radiator and the fourth radiator are used for supporting wireless signals. On the basis, the directional diagrams of the four radiators are complementary, and the omnidirectional performance of the antenna device is better; meanwhile, the four radiating bodies are arranged on different sides and can adapt to different holding modes of users, so that the antenna device has better radiation performance under different holding modes.

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. It will be appreciated that each communication mode of the electronic device requires a respective antenna to support.

However, with the development of electronic technology, electronic devices are becoming smaller and thinner, and the internal space of the electronic devices is also becoming smaller, so that how to reasonably arrange antennas of the electronic devices is becoming a difficult problem.

Disclosure of Invention

The application provides an antenna device and electronic equipment, through carrying out reasonable layout to a plurality of irradiators of antenna device, antenna device and electronic equipment can have better radiation performance.

In a first aspect, the present application provides an antenna apparatus, including a first edge, a second edge, a third edge, and a fourth edge connected in sequence, where the first edge is disposed opposite to the third edge, and the second edge is disposed opposite to the fourth edge; the antenna device further includes:

the first radiator, at least some said first radiators are set up in the said first side;

the second radiator is arranged on the second edge;

a third radiator, at least a portion of which is disposed on the third edge; and

a fourth radiator disposed on the fourth side; wherein,

the first radiator and the third radiator are symmetrically arranged about a center point of the antenna device, the second radiator and the fourth radiator are symmetrically arranged about the center point, and the first radiator, the second radiator, the third radiator and the fourth radiator are used for supporting wireless signals.

In a second aspect, the present application further provides an electronic device, including the antenna apparatus as described above.

According to the antenna device and the electronic device, at least part of the first radiator of the antenna device is arranged on the first side, at least part of the third radiator is arranged on the third side, and at least part of the fourth radiator is arranged on the fourth side. On the basis, the four radiators are arranged on the periphery of the antenna device, on one hand, directional diagrams of the four radiators are complementary, the antenna device is excellent in omni-directionality, and radiation signals in different directions can be received; on the other hand, the four radiators are arranged on different sides, so that different holding modes of a user can be adapted, and the antenna device still has better radiation performance under different holding modes; in yet another aspect, when the four radiators simultaneously support wireless signals, it is possible to improve both OTA performance of the antenna apparatus and communication capability between the antenna apparatus and the base station, such as high-rate, low-latency, ultra-wide coverage, high throughput, and the like.

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

Fig. 3 is a schematic diagram of a third structure of an antenna apparatus according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a fourth structure of an antenna apparatus according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a first mode of current generated by the antenna apparatus shown in fig. 4.

Fig. 6 is a schematic diagram of a second mode of current generated by the antenna apparatus shown in fig. 4.

Fig. 7 is a schematic diagram of currents of the antenna apparatus shown in fig. 4 generating a third mode.

Fig. 8 is a schematic diagram of a fourth mode of current generated by the antenna apparatus shown in fig. 4.

Fig. 9 is a schematic diagram of currents of the antenna apparatus shown in fig. 4 generating a fifth mode.

Fig. 10 is a graph illustrating a reflection coefficient of the antenna device shown in fig. 4.

Fig. 11 is a schematic structural diagram of a fifth antenna device according to an embodiment of the present application.

Fig. 12 is a schematic diagram of a sixth structure of an antenna device according to an embodiment of the present application.

Fig. 13 is a schematic diagram of currents of the antenna device shown in fig. 12 in a sixth mode.

Fig. 14 is a schematic diagram of currents of the antenna device shown in fig. 12 generating a seventh mode.

Fig. 15 is a schematic current diagram illustrating the antenna apparatus shown in fig. 12 generating an eighth mode.

Fig. 16 is a schematic diagram of currents of the antenna device shown in fig. 12 generating a ninth mode.

Fig. 17 is a graph illustrating a reflection coefficient of the antenna device shown in fig. 12.

Fig. 18 is a schematic diagram of a seventh structure of an antenna apparatus according to an embodiment of the present application.

Fig. 19 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solution in the embodiment of the present application will be clearly and completely described below with reference to fig. 1 to 19 in the embodiment 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.

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 may be combined with other embodiments.

The present embodiment provides an antenna apparatus 100 and an electronic device 10, where the antenna apparatus 100 may implement a Wireless communication function, for example, the antenna apparatus 100 may transmit (Wireless Fidelity, Wi-Fi for short) signals, Global Positioning System (GPS for short) signals, third-Generation mobile communication technology (3rd-Generation, 3G for short), fourth-Generation mobile communication technology (4th-Generation, 4G for short), fifth-Generation mobile communication technology (5th-Generation, 5G for short), Near field UWB communication (NFC for short), bluetooth (BT for short) signals, Ultra WideBand communication (Ultra WideBand, for short) 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 side 101, a second side 102, a third side 103, and a fourth side 104, which are sequentially connected, and the antenna device 100 further includes a first radiator 111, a second radiator 112, a third radiator 113, and a fourth radiator 114.

The first side 101 of the antenna device 100 may be disposed opposite to the third side 103, the second side 102 may be disposed opposite to the fourth side 104, the second side 102 may be located between the first side 101 and the third side 103 and directly or indirectly connected to the first side 101 and the third side 103, respectively, the fourth side 104 may also be located between the first side 101 and the third side 103 and directly or indirectly connected to the first side 101 and the third side 103, respectively, and the first side 101, the second side 102, the third side 103, and the fourth side 104 may enclose to form a rectangular structure. At least a portion of the first radiator 111 may be disposed on the first side 101, the second radiator 112 may be disposed on the second side 102, at least a portion of the third radiator 113 may be disposed on the third side 103, and the fourth radiator 114 may be disposed on the fourth side 104. The first radiator 111, the second radiator 112, the third radiator 113, and the fourth radiator 114 may support wireless signals, for example, low frequency signals. The antenna device 100 may include a center point O, and the first radiator 111 and the third radiator 113 may be symmetrically disposed about the center point O, and the second radiator 112 and the fourth radiator 114 may also be symmetrically disposed about the center point O.

For example, as shown in fig. 1, when the first side 101 and the third side 103 are short sides of the antenna device 100 and the second side 102 and the third side 103 are long sides of the antenna device 100, the first radiator 111 may be located at a corner (lower right corner) of the first side 101 and the fourth side 104, the third radiator 113 may be located at a corner (upper left corner) of the second side 102 and the third side 103, the second radiator 112 may be located on the longer second side 102, and the fourth radiator 114 may be located on the longer fourth side 104. Accordingly, the first radiator 111 and the third radiator 113 may be disposed centrally symmetrically with respect to the center point O, and the second radiator 112 and the fourth radiator 114 may also be disposed centrally symmetrically with respect to the center point O.

It can be understood that the four radiators are respectively located on four edges and are arranged in a symmetric manner with respect to each other in the center, the directional patterns of the four radiators when transmitting wireless signals can be complementary, and the antenna device 100 can have better omnidirectional performance.

It can be understood that the four radiators are respectively located on four sides and two radiators are arranged in a central symmetry manner, and the antenna device 100 can adapt to different hand-held postures of users. For example, when the antenna device 100 is in a free state and not held by a user, the antenna device 100 may control the first radiator 111 to operate and support a wireless signal; when the antenna device 100 is in the vertical hand-held state or the head-hand state, the antenna device 100 may control the third radiator 113 to operate and support the wireless signal; when the antenna device 100 is held in the two-handed landscape state, the antenna device 100 may control the second radiator 112 or the fourth radiator 114 to operate and support a wireless signal.

It is to be understood that one or more of the plurality of radiators can simultaneously support wireless signals. For example, the first radiator 111, the second radiator 112, the third radiator 113, and the fourth radiator 114 may form a multiple-in multiple-out (MIMO) transmission, for example, a 4 × 4 MIMO transmission of a low frequency signal.

It is understood that the first to fourth radiators 111 to 114 (including the fifth radiator 115 to the eighth radiator 118) are disposed on the first side 101, the second side 102, the third side 103 and the fourth side 104, that the radiators are formed on one of the sides, that the radiators are directly or indirectly connected to one of the sides, and that the radiators are disposed at intervals with respect to one of the sides, and that the projection of the radiators is located on the one of the sides. The embodiment of the present application does not limit the specific arrangement manner of the plurality of radiators.

In the antenna device 100 according to the embodiment of the present application, at least a portion of the first radiator 111 is disposed on the first side 101, at least a portion of the second radiator 112 is disposed on the second side 102, at least a portion of the third radiator 113 is disposed on the third side 103, and the fourth radiator 114 is disposed on the fourth side 104, wherein the first radiator 111 and the third radiator 113 are symmetrically disposed about the center point O of the antenna device 100, and the second radiator 112 and the fourth radiator 114 are also symmetrically disposed about the center point O. On the basis, the four radiators are arranged around the antenna device 100, on one hand, the directional diagrams of the four radiators are complementary, the omnidirectional performance of the antenna device 100 is excellent, and the antenna device can receive radiation signals in different directions; on the other hand, the four radiators are arranged on different sides, which can adapt to different holding modes of users, so that the antenna device 100 still has better radiation performance in different holding modes; on The other hand, when The four radiators simultaneously support wireless signals, it is possible to improve OTA (Over The Air, which is a test for verifying The transmission power and reception performance of The Air interface of mobile communication) performance of The antenna apparatus 100, and to improve communication capabilities between The antenna apparatus 100 and The base station, such as high-speed, low-latency, ultra-wide coverage, and high-throughput performance.

Please refer to fig. 2 in conjunction with fig. 1, and fig. 2 is a schematic diagram of a second structure of an antenna apparatus 100 according to an embodiment of the present disclosure. The first radiator 111 may include a first end 1111 and a second end 1112 which are oppositely disposed, and a first feeding point 1113 located between the first end 1111 and the second end 1112, the first end 1111 may be disposed on the first side 101, the second end 1112 may be disposed on the fourth side 104, so that a portion of the first radiator 111 may be disposed on the first side 101 and another portion of the second radiator 112 may be disposed on the fourth side 104, and the first radiator 111 may be disposed at a corner of the first side 101 and the fourth side 104. Of course, in actual debugging, all the first radiators 111 may be disposed on the first side 101, which is not limited in the embodiment of the present application.

It is to be understood that, as shown in fig. 2, the antenna device 100 of the embodiment of the present application may further include a first feed 121. The first feed 121 may be directly or indirectly electrically connected to the first radiator 111, for example, electrically connected to the first feed point 1113. The first feed 121 may provide a first excitation signal to the first radiator 111, and the first radiator 111 may support transmission of a wireless signal, for example, a low frequency signal, under excitation of the first excitation signal.

As shown in fig. 1 and fig. 2, the second radiator 112 may include a fifth end 1121 and a sixth end 1122 that are oppositely disposed, and a third feeding point 1123 located between the fifth end 1121 and the sixth end 1122, and all radiation branches between the fifth end 1121 and the sixth end 1122 of the second radiator 112 may be disposed on the second side 102. The second radiator 112 may be grounded, for example, the second radiator 112 may be grounded through the sixth terminal 1122.

It is to be understood that, as shown in fig. 2, the antenna device 100 of the embodiment of the present application may further include a third feed 123, and the third feed 123 may be directly or indirectly electrically connected to the second radiator 112, for example, electrically connected to the third feed point 1123. The third feed 123 may provide a third excitation signal to the second radiator 112, and the second radiator 112 may support transmission of a wireless signal, for example, a low frequency signal, under excitation of the third excitation signal.

As shown in fig. 1 and 2, the third radiator 113 may include a ninth end 1131 and a tenth end 1132 which are oppositely disposed, and a fifth feeding point 1133 located between the ninth end 1131 and the tenth end 1132, the ninth end 1131 may be disposed on the third side 103, and the tenth end 1132 may be disposed on the second side 102, so that a portion of the third radiator 113 may be disposed on the third side 103, another portion of the third radiator 113 may be disposed on the second side 102, and the third radiator 113 may be disposed at a corner of the third side 103 and the second side 102. Of course, in actual debugging, all the third radiators 113 may be disposed on the third side 103, which is not limited in the embodiment of the present application.

It is to be understood that, as shown in fig. 2, the antenna device 100 of the embodiment of the present application may further include a fifth feed 125, and the fifth feed 125 may be electrically connected to the third radiator 113 directly or indirectly, for example, to the fifth feed point 1133. The fifth feed 125 may provide a fifth excitation signal to the third radiator 113, and the third radiator 113 may support transmission of wireless signals, e.g., low frequency signals, under excitation of the fifth excitation signal.

As shown in fig. 1 and fig. 2, the fourth radiator 114 may include a thirteenth end 1141 and a fourteenth end 1142 that are oppositely disposed, and a seventh feeding point 1143 located between the thirteenth end 1141 and the fourteenth end 1142, and the radiation branches between the thirteenth end 1141 and the fourteenth end 1142 of the fourth radiator 114 may be entirely disposed on the fourth side 104. The fourth radiator 114 may be grounded, for example, the fourth radiator 114 may be grounded through the fourteenth end 1142.

It is to be understood that, as shown in fig. 2, the antenna device 100 of the embodiment of the present application may further include a seventh feed 127, and the seventh feed 127 may be electrically connected to the fourth radiator 114 directly or indirectly, for example, to the seventh feed point 1143. The seventh feed 127 may provide a seventh excitation signal to the fourth radiator 114, and the fourth radiator 114 may support transmission of wireless signals, e.g., low frequency signals, under excitation of the seventh excitation signal.

It is understood that the first radiator 111, the second radiator 112, the third radiator 113, and the fourth radiator 114 may be a conductor structure capable of radiating wireless signals, such as, but not limited to, a radiating branch and a radiating patch. The embodiment of the present application does not limit the specific forming manner of the radiator.

It is understood that one or more of the first radiator 111, the second radiator 112, the third radiator 113, and the fourth radiator 114 may transmit a low frequency signal. For example, the first radiator 111, the second radiator 112, the third radiator 113, and the fourth radiator 114 may form a MIMO transmission of 4 × 4 low frequency signals. Because the electrical length of the radiator for transmitting the low-frequency signal is long, in the embodiment of the present application, the low-frequency signal is transmitted by using four radiators arranged on four sides, so that the space of the antenna device 100 can be reasonably utilized to realize the transmission of the low-frequency signal, and the antenna device 100 can be designed in a miniaturized manner.

It is understood that the antenna device 100 may also include a ground plane. The ground plane may form a common ground. The ground plane may be formed by a conductor, a printed wiring, a metal printed layer, or the like in the antenna device 100. For example, the ground plane may be provided on a circuit board, a small board, or the like of the antenna device 100, or may be formed on the middle frame 300 of the antenna device 100. The sixth end 1122 of the second radiator 112 and the fourteenth end 1142 of the fourth radiator 114 may be directly or indirectly electrically connected to the ground plane, so as to realize the grounding of the second radiator 112 and the fourth radiator 114.

It is understood that the first radiator 111 and the third radiator 113 may not be directly grounded, and the first radiator 111 and the third radiator 113 may be in a "floating" structure without being directly electrically connected to the ground plane. The first radiator 111 and the third radiator 113 may be grounded through, but not limited to, a circuit structure such as a regulating circuit, a ground circuit, a filter circuit, etc., and because there are structures such as a resistor, an inductor, a capacitor, etc., inside the circuit structure, the first radiator 111 and the third radiator 113 may not be directly grounded, and the first radiator 111 and the third radiator 113 may still be in a "floating" state.

Please refer to fig. 3 in conjunction with fig. 1 and fig. 2, and fig. 3 is a schematic diagram of a third structure of the antenna device 100 according to an embodiment of the present disclosure. The antenna device 100 of the embodiment of the present application may further include a detection circuit 130.

The detection circuit 130 may be electrically connected between the first feed 121 and the first radiator 111. For example, one end of the detection circuit 130 may be directly or indirectly electrically connected to the first feed 121, and the other end of the detection circuit 130 may be directly or indirectly electrically connected to the first radiator 111. The detection circuit 130 may detect a Specific Absorption Rate (SAR) of the antenna apparatus 100.

It is understood that in the antenna design, the influence of the electromagnetic radiation generated by the electronic device 10 on the human body is often evaluated through the SAR index. The larger the SAR value, the larger the influence on the human body. In the related art, the distance between the antenna device 100 and the human body is often detected by a sensor to reduce the power of the antenna when the antenna device 100 approaches the human body, thereby achieving a reduction in the SAR value. However, the sensor is required to be arranged on one hand to detect the SAR value, which increases the hardware cost of the antenna device 100; on the other hand, the sensor often needs to be disposed at a specific position, which may occupy space of the antenna device 100 and affect the layout of other structures. In this embodiment, the detection circuit 130 utilizes the first radiator 111 as its sensing element, the detection circuit 130 and the first radiator 111 may be sensitive to the approach of the head and the hand of the user, when the user is not approaching the electronic device 10 or the antenna apparatus 100, the difference between the data detected by the detection circuit 130 and the data detected when the user is approaching the electronic device 10 or the antenna apparatus 100 is within a preset difference range, and the difference between the two is large, the detection circuit 130 may detect whether the user is approaching, and according to the difference, it may also determine whether the SAR value of the electronic device 10 exceeds a predetermined SAR value threshold, so that the electronic device 10 adjusts the power of the antenna apparatus 100 according to the SAR value.

It is understood that the detection circuit 130 of the embodiments of the present application may be, but is not limited to, one or more of a capacitor, an inductor, a resistor, and other electronic devices. For example, the detection circuit 130 according to the embodiment of the present application may be a large capacitance device, the first radiator 111 is in a floating and ungrounded state, if a user holds the device by hand or the user approaches the first radiator 111, a capacitance value detected by the detection circuit 130 changes greatly, and according to the change, it may be determined whether the user approaches and may determine a range of the SAR value. In the embodiment of the present application, the specific structure of the detection circuit 130 is not limited.

The antenna device 100 of the embodiment of the application detects the SAR value of the electronic device 10 through the detection circuit 130, and the antenna device 100 does not need to be provided with a sensor or additionally reserve a design space of the sensor. The detection circuit 130 of the embodiment of the application has the advantages of lower hardware cost, simpler structure and less occupied space.

It should be noted that the first radiator 111 according to the embodiment of the present application needs to be in a "floating" state when multiplexing as an inductive element for SAR value detection, and if the antenna device 100 does not include the detection circuit 130, the first radiator 111 may be grounded to the ground plane and may be in a "non-floating" state. It is understood that the antenna device 100 may also include a switch element disposed between the first radiator 111 and the ground plane, the switch element may disconnect the electrical connection with the ground plane when the first radiator 111 is multiplexed as an inductive element for SAR value detection, so that the first radiator 111 is in a "floating" state, and the switch element may also connect the electrical connection with the ground plane when the first radiator 111 does not need to be multiplexed as an inductive element for SAR value detection, so that the first radiator 111 is in a "non-floating" state. The embodiment of the present application does not limit the specific electrical connection manner between the detection circuit 130 and the first radiator 111.

Fig. 1 to fig. 3 are combined with fig. 4 to fig. 6, fig. 4 is a schematic diagram of a fourth structure of an antenna device 100 according to an embodiment of the present disclosure, fig. 5 is a schematic diagram of a current generated by the antenna device 100 shown in fig. 4 in a first mode, and fig. 6 is a schematic diagram of a current generated by the antenna device 100 shown in fig. 4 in a second mode. The antenna device 100 may further include a first adjusting circuit 141.

The first adjusting circuit 141 may be directly or indirectly electrically connected to the first radiator 111. For example, one end of the first adjusting circuit 141 may be directly or indirectly electrically connected to the radiation stub region between the first end 1111 of the first radiator 111 and the first feeding point 1113, and the other end of the first adjusting circuit 141 may be grounded, and the first adjusting circuit 141 may adjust the first driving signal so that the first radiator 111 supports the wireless signal.

For example, as shown in fig. 5, the first adjusting circuit 141 may adjust the first excitation signal so that the radiation branch from the first feeding point 1113 to the first end 1111 of the first radiator 111 may generate the first current distribution I1 and generate the first mode, for example, supporting a wireless signal in a quarter-wavelength mode, for example, supporting a low-frequency signal in a first frequency band, under the action of the first excitation signal.

For another example, as shown in fig. 6, the first adjusting circuit 141 may further adjust the first excitation signal so that the entire first radiator 111 may generate the second current distribution I2 under the action of the first excitation signal and generate the second mode, for example, supporting the wireless signal in the half-wavelength mode, for example, supporting the low-frequency signal in the second frequency band.

It is understood that the low frequency signal of the second frequency band may be different from the low frequency signal of the first frequency band, and the first radiator 111 may form the two modes simultaneously or separately under the action of the first adjusting circuit 141. Of course, the low frequency signal of the second frequency band may also be the same as the low frequency signal of the first frequency band, and the first radiator 111 may separately form the two modes under the action of the first adjusting circuit 141.

It is understood that the first adjusting circuit 141 may be, but is not limited to, a circuit structure including one or more capacitors, resistors, inductors, etc. connected in series or in parallel. The embodiment of the present application does not limit the specific structure of the first adjusting circuit 141.

It is understood that the first adjusting circuit 141 may include a plurality of branches, for example, a first branch and a second branch, the first feed 121 may provide the excitation signal covering the two modal bands to the first radiator 111, so that the excitation signal corresponding to the first band may return to ground through the first branch and form a quarter-wavelength mode, the excitation signal corresponding to the second band may return to ground through the second branch and form a half-wavelength mode, and the first radiator 111 may form the two modes at the same time. Of course, the first radiator 111 may form only one mode. The embodiment of the present application does not limit the specific operation mode of the first adjusting circuit 141.

In the antenna device 100 according to the embodiment of the application, under the adjustment of the first adjustment circuit 141, the first radiator 111 may form a quarter-wavelength mode or a half-wavelength mode, and the first radiator 111 realizes multiplexing, so that the antenna device 100 may be miniaturized, and the antenna device 100 may cover a wider frequency band.

Referring to fig. 4 again, the antenna device 100 of the embodiment of the present application may further include a fifth radiator 115 and a second feed 122.

The fifth radiator 115 may be disposed on the first side 101, and the fifth radiator 115 may include third and fourth oppositely disposed ends 1151 and 1152 and a second feeding point 1153 located between the third and

fourth ends

1151 and 1152, and the third and

fourth ends

1151 and 1152 may be disposed on the first side 101. The third end 1151 of the fifth radiator 115 and the first end 1111 of the first radiator 111 may form the first coupling gap 105 therebetween, and the fourth end 1152 of the fifth radiator 115 may extend away from the first radiator 111 and be grounded. The fifth radiator 115 and the first radiator 111 may form an aperture-to-aperture antenna.

The second feed 122 may be directly or indirectly electrically connected to the fifth radiator 115, for example, the second feed 122 may be electrically connected to the second feed point 1153 of the fifth radiator 115. The second feed 122 may provide a second driving signal that may drive the fifth radiator 115 to support wireless signals such as, but not limited to, medium and high frequency signals.

In the antenna device 100 according to the embodiment of the present application, the fifth radiator 115 supporting medium-high frequency signals and the first radiator 111 supporting low-frequency signals are disposed on the first edge 101, on one hand, the transmission frequency bands of the two radiators are far apart, and interference is not easily generated; on the other hand, the first radiator 111 for transmitting low frequency signals has a longer length, and the fifth radiator 115 for transmitting medium and high frequency signals has a shorter length, and the first radiator and the fifth radiator cooperate with each other to more reasonably utilize the space of the first side 101.

Please refer to fig. 4 again and fig. 7 to 9, fig. 7 is a schematic current diagram illustrating the antenna device 100 shown in fig. 4 generating a third mode, fig. 8 is a schematic current diagram illustrating the antenna device 100 shown in fig. 4 generating a fourth mode, and fig. 9 is a schematic current diagram illustrating the antenna device 100 shown in fig. 4 generating a fifth mode. The antenna device 100 of the embodiment of the present application may further include a second adjustment circuit 142.

The second adjusting circuit 142 may be electrically connected between the second feed 122 and the fifth radiator 115 directly or indirectly. For example, the second conditioning circuit 142 can be electrically coupled between the second feed 122 and the second feed point 1153. The second conditioning circuit 142 may condition the second excitation signal provided by the second feed 122 and may cause the fifth radiator 115 to form a different modal transmission signal.

For example, as shown in fig. 7, the second adjusting circuit 142 may adjust the second excitation signal and enable the entire fifth radiator 115 to generate a third current distribution I3 under the action of the second excitation signal and generate a third mode supporting wireless signals, for example, in a quarter-wavelength mode, for example, supporting medium-high frequency signals in the first frequency band.

For another example, as shown in fig. 8, the second adjusting circuit 142 may further adjust the second excitation signal, and enable the second excitation signal to be electromagnetically coupled to the first radiator 111 through the first coupling gap 105 and to flow from the first feeding point 1113 of the first radiator 111 through the first adjusting circuit 141 to the ground, so that a radiation branch node between the second feeding point 1153 of the fifth radiator 115 and the first adjusting circuit 141 (or the first feeding point 1113) generates a fourth current distribution I4 under the effect of the second excitation signal and generates a fourth mode, for example, a quarter-wavelength mode supporting wireless signals, for example, medium-high frequency signals of the second frequency band.

For another example, as shown in fig. 9, the second adjusting circuit 142 may adjust the second excitation signal and couple the second excitation signal to the first radiator 111 through the first coupling gap 105, so that the whole first radiator 111 generates the fifth mode under the action of the second excitation signal, for example, a wavelength mode supporting wireless signals, for example, medium-high frequency signals supporting the third frequency band.

It is understood that the medium-high frequency signals of the first frequency band, the second frequency band and the third frequency band may be completely different, so that the fifth radiator 115 and the first radiator 111 may form the three modes simultaneously or separately. Of course, one or more of the three bands of the medium-high frequency signals may also be the same, so that the fifth radiator 115 and the first radiator 111 may separately form each mode.

It is understood that the second adjusting circuit 142 may be, but is not limited to, a circuit structure including one or more capacitors, resistors, inductors, etc. connected in series or in parallel. The second adjusting circuit 142 may include a plurality of branches therein, so that the fifth radiator 115 and the first radiator 111 may form any one of the modes. The embodiment of the present application does not limit the specific structure and the specific operation mode of the second adjusting circuit 142.

It can be understood that, as shown in fig. 4 to 9, under the action of the first adjusting circuit 141 and the second adjusting circuit 142, the first radiator 111 and the second radiator 112 of the embodiment of the present application may jointly form five different modes and support five different frequency bands of wireless signals. For example, referring to fig. 10, fig. 10 is a schematic diagram of a reflection coefficient curve of the antenna device 100 shown in fig. 4. Fig. 10 illustrates curves S1 to S3, which are curves of the reflection coefficient formed by the first radiator 111 excited by the first excitation signal, where the curves S1 to S3 are different from each other in that the resonant point tuned by the first adjusting circuit 141 is slightly different, and as can be seen from the curves S1 to S3, the radiation branch between the first feeding point 1113 of the first radiator 111 and the first end 1111 of the first radiator 111 can generate a first mode of a quarter-wavelength mode, and the whole first radiator 111 can generate a second mode of a half-wavelength mode; the resonance point of the first mode may be in the frequency band range of 0.5GHz to 1GHz, and the resonance point of the second mode may be in the frequency band range of 1GHz to 1.5 GHz.

A curve S4 is a schematic diagram of a reflection coefficient curve formed by the fifth radiator 115 and the first radiator 111 under the excitation of the fifth excitation signal, and as can be seen from the curve S4, under the excitation of the second excitation signal and the adjustment of the second adjustment circuit 142, a third mode of a quarter-wavelength mode can be generated at a radiation branch (the entire fifth radiator 115) between the fourth end 1152 of the fifth radiator 115, which is grounded, and the first coupling slot, a fourth mode of the quarter-wavelength mode can be generated at a radiation branch (the entire fifth radiator 115) between the second feeding point 1153 of the fifth radiator 115, which is electrically connected to the second feed source 122, and the first feeding point 1113 of the first radiator 111, which is electrically connected to the first adjustment circuit 141, and a fifth mode of a quarter-wavelength mode can be generated at the entire first radiator 111; the resonance point of the third mode may be in a frequency band range of 1.5GHz to 2GHz, the resonance point of the fourth mode may be in a frequency band range of 2.5GHz to 3GHz, and the resonance point of the fifth mode may be in a frequency band range of 1.5GHz to 2 GHz.

It is understood that one or more of the five modes may be formed simultaneously by the antenna device 100, and of course, each mode may be formed separately by the antenna device 100. This is not limited in the embodiments of the present application.

In the antenna device 100 according to the embodiment of the application, under the adjustment of the first adjusting circuit 141 and the second adjusting circuit 142, the fifth radiator 115 and the first radiator 111 are matched to form five modes, and the antenna device 100 can cover a wider frequency band range, thereby improving the frequency spectrum utilization rate and the throughput rate.

Please refer to fig. 11, wherein fig. 11 is a schematic diagram illustrating a fifth structure of an antenna apparatus 100 according to an embodiment of the present disclosure. The antenna device 100 of the embodiment of the present application may further include a sixth radiator 116.

The sixth radiator 116 may be disposed on the third side 103, and the sixth radiator 116 may be disposed at a distance from the third radiator 113 also disposed on the third side 103, for example, the sixth radiator 116 may include an eleventh end 1161 and a twelfth end 1162, the eleventh end 1161 may be disposed at a distance from the ninth end 1131 of the third radiator 113 and form a coupling gap, the twelfth end 1162 may extend toward a direction away from the third radiator 113 and be grounded, and the sixth radiator 116 and the third radiator 113 may form an aperture-to-aperture antenna. The sixth radiator 116 and the fifth radiator 115 may be symmetrically disposed about the center point O of the antenna device 100.

It is understood that the third radiator 113 may have the same or similar features as the first radiator 111, such as structure, electrical connection relationship, and operation mode; the sixth radiator 116 may have the same or similar characteristics as the fifth radiator 115 in terms of structure, electrical connection, operation mode, and the like. The antenna device 100 may be provided with a feed and a tuning circuit electrically connected to the third radiator 113, and a feed and a tuning circuit electrically connected to the sixth radiator 116, so as to excite the sixth radiator 116 and the third radiator 113 to form first to fifth modes that are the same as or similar to the first radiator 111 and the fifth radiator 115. The descriptions of the third radiator 113 and the sixth radiator 116 may refer to the descriptions of the first radiator 111 and the fifth radiator 115, and are not described in detail again.

Please refer to fig. 12, wherein fig. 12 is a schematic diagram illustrating a sixth structure of the antenna device 100 according to the embodiment of the present application. The antenna device 100 of the embodiment of the present application may further include a seventh radiator 117 and a fourth feed 124.

The seventh radiator 117 may be disposed on the second side 102, and the seventh radiator 117 may include seventh and

eighth ends

1171 and 1172 disposed opposite to each other, and a fourth feeding point 1173 located between the seventh and

eighth ends

1171 and 1172. The seventh radiator 117 may be spaced apart from the second radiator 112, for example, the seventh end 1171 of the seventh radiator 117 may form the second coupling gap 106 with the fifth end 1121 of the second radiator 112, the eighth end 1172 of the seventh radiator 117 may extend away from the second radiator 112 (e.g., away from the fifth end 1121) and be grounded, and the seventh radiator 117 and the eighth radiator 118 may form a port-to-port antenna.

The fourth feed 124 may be directly or indirectly electrically connected to the seventh radiator 117, e.g., electrically connected to the fourth feed point 1173, and the fourth feed 124 may provide a fourth driving signal and drive the seventh radiator 117 to support wireless signals, e.g., without limitation, medium to high frequency signals.

In the antenna device 100 according to the embodiment of the application, the seventh radiator 117 supporting the medium-high frequency signal and the second radiator 112 supporting the low-frequency signal are disposed on the second side 102, on one hand, the transmission frequency bands of the two radiators are far apart, and interference is not easily generated; on the other hand, the second radiator 112 for transmitting low frequency signals has a longer length, and the seventh radiator 117 for transmitting medium and high frequency signals has a shorter length, and the mutual cooperation of the two can more reasonably utilize the space of the second side 102.

Referring to fig. 13 and 14 in combination with fig. 12, fig. 13 is a schematic diagram of a sixth mode generated by the antenna device 100 shown in fig. 12, and fig. 14 is a schematic diagram of a seventh mode generated by the antenna device 100 shown in fig. 12. The antenna device 100 of the embodiment of the present application may further include a third adjustment circuit 143.

The third adjusting circuit 143 may be directly or indirectly electrically connected between the fourth feed 124 and the seventh radiator 117. For example, the third conditioning circuit 143 can be electrically connected between the fourth feed 124 and the fourth feed point 1173. The third adjusting circuit 143 may adjust the fourth excitation signal provided by the fourth feed 124 and may cause the seventh radiator 117 to form a different modal transmission signal.

For example, as shown in fig. 13, the third adjusting circuit 143 may adjust the fourth excitation signal and enable the radiation branch (the entire seventh radiator 117) between the seventh end 1171 and the eighth end 1172 of the seventh radiator 117 to generate the sixth current distribution I6 and generate the sixth mode, for example, supporting the radio signal in the quarter-wavelength mode, for example, supporting the medium-high frequency signal in the fourth frequency band.

For another example, as shown in fig. 14, the third adjusting circuit may adjust the fourth excitation signal and enable the radiation branch node between the fourth feeding point 1173 and the seventh end 1171 of the seventh radiator 117 to generate a seventh current distribution I7 and generate a seventh mode, for example, a quarter-wavelength mode supporting wireless signals, for example, medium-high frequency signals in the fifth frequency band.

It is understood that the fifth frequency band may be different from the fourth frequency band, and the seventh radiator 117 may form the sixth mode and the seventh mode simultaneously or separately. Of course, the fifth frequency band may also be the same as the fourth frequency band, and the seventh radiator 117 may form the sixth mode or the seventh mode separately.

Referring to fig. 12 again and fig. 15, fig. 15 is a schematic current diagram illustrating the antenna device 100 shown in fig. 12 generating an eighth mode. The antenna device 100 of the embodiment of the present application may further include a fourth adjustment circuit 144.

One end of the fourth adjusting circuit 144 may be directly or indirectly electrically connected between the third feed 123 and the third feed point 1123 of the second radiator 112, and the other end of the fourth adjusting circuit 144 is grounded.

It will be appreciated that the fourth conditioning circuit 144 may comprise a band pass resistive circuit such that the fourth conditioning circuit 144 may allow the fourth excitation signal provided by the fourth feed 124 to go back to ground while preventing the third excitation signal provided by the third feed 123 from going back to ground.

As shown in fig. 15, the third adjusting circuit 143 may adjust the fourth excitation signal provided by the fourth feed 124, couple the fourth excitation signal to the second radiator 112 through the second coupling gap 106, and ground through the fourth adjusting circuit 144, so that the radiation branch node between the fifth end 1121 of the second radiator 112 and the third feeding point 1123 may generate an eighth current distribution I8 and generate an eighth mode, for example, a quarter-wavelength mode supporting wireless signals, for example, medium-high frequency signals in the sixth frequency band.

It is understood that the sixth frequency band may be different from the fourth frequency band and the fifth frequency band, so that the second radiator 112 and the seventh radiator 117 may form the sixth mode, the seventh mode, and the eighth mode simultaneously or separately; of course, one or more of the fourth frequency band, the fifth frequency band, and the sixth frequency band may be the same. This is not limited in the embodiments of the present application.

It is understood that the second radiator 112 may form other modes under the action of the third excitation signal provided by the third feed 123. For example, referring to fig. 16, fig. 16 is a schematic diagram of the antenna apparatus 100 shown in fig. 12 generating a ninth current distribution I9 and generating a ninth mode current. The third excitation signal provided by the third feed 123 may excite a radiation branch from the third feeding point 1123 on the second radiator 112 to the sixth end 1122 (ground) of the second radiator 112 to generate a ninth current distribution I9 and generate a ninth mode and may support a low frequency signal, for example, a low frequency signal, in an eighth wavelength mode.

It is understood that the third and fourth adjusting

circuits

143 and 144 may be, but not limited to, a circuit structure including one or more capacitors, resistors, inductors, etc. connected in series or in parallel. The third and fourth adjusting

circuits

143 and 144 may include one or more branches therein, so that the second radiator 112 and the seventh radiator 117 may form any one of the modes. The embodiment of the present application does not limit the specific structures and the specific operation modes of the third adjusting circuit 143 and the fourth adjusting circuit 144.

It can be understood that, as shown in fig. 13 to 16, under the action of the third adjusting circuit 143 and the fourth adjusting circuit 144, the second radiator 112 and the seventh radiator 117 of the embodiment of the present application may jointly form four different modes and support four different frequency bands of wireless signals. For example, referring to fig. 17, fig. 17 is a schematic diagram of a reflection coefficient curve of the antenna device 100 shown in fig. 12. As shown in a curve S5 in fig. 17, which is a schematic diagram of a reflection coefficient curve formed by the second radiator 112 under the excitation of the third excitation signal provided by the third feed source 123, as shown by a curve S5, under the excitation of the third excitation signal, a radiation branch node between the third feeding point 1123 and the sixth end 1122 of the second radiator 112 may generate a ninth mode of an eighth-wavelength mode, and a resonance point of the ninth mode may be in a frequency band range from 0.5GHz to 1 GHz. As can be seen from the curve S6, under the adjustment of the fourth excitation signal and the third and fourth adjusting

circuits

143 and 144, the radiation branches from the seventh end 1171 to the eighth end 1172 of the seventh radiator 117 (the entire seventh radiator 117) may generate the sixth mode of the quarter-wavelength mode, the radiation branches from the fourth feeding point 1173 to the seventh end 1171 of the seventh radiator 117 may generate the seventh mode of the quarter-wavelength mode, and the radiation branches from the fifth end 1121 to the third feeding point 1123 of the second radiator 112 may generate the eighth mode of the quarter-wavelength mode. The resonance point of the sixth mode may be in the frequency band range of 1.5GHz to 2GHz, the resonance point of the seventh mode may be in the frequency band range of 3Hz to 3.5, and the resonance point of the eighth mode may be in the frequency band range of 2.5 to 3 Hz.

It is understood that one or more of the four modes described above may be formed simultaneously by the antenna device 100, but of course, each mode may be formed by the antenna device 100 separately. This is not limited in the embodiments of the present application.

In the antenna device 100 according to the embodiment of the application, under the adjustment of the third adjusting circuit and the fourth adjusting circuit 144, the seventh radiator and the second radiator 112 are matched to form four modes, and the antenna device 100 can cover a wider frequency range, thereby improving the frequency spectrum utilization rate and the throughput rate.

Referring to fig. 18, fig. 18 is a schematic diagram illustrating a seventh structure of an antenna device 100 according to an embodiment of the present application. The antenna device 100 of the embodiment of the present application may further include an eighth radiator 118.

The eighth radiator 118 may be disposed on the fourth side 104, the eighth radiator 118 may be disposed at a distance from the fourth radiator 114 also disposed on the fourth side 104, for example, the eighth radiator 118 may include a fifteenth end 1181 and a sixteenth end 1182, the fifteenth end 1181 may be disposed at a distance from the thirteenth end 1141 of the fourth radiator 114 and form a coupling gap, the sixteenth end 1182 may extend away from the third radiator 113 and be grounded, and the eighth radiator 118 and the fourth radiator 114 may form a slot-to-slot antenna. Among them, the eighth radiator 118 and the seventh radiator 117 may be symmetrically disposed about the center point O of the antenna device 100.

It is understood that the fourth radiator 114 may have the same or similar characteristics as the second radiator 112 in terms of structure, electrical connection, operation mode, and the like; the eighth radiator 118 may have the same or similar characteristics as the seventh radiator 117 in structure, electrical connection, operation mode, and the like. The antenna device 100 may be provided with a feed and a tuning circuit electrically connected to the fourth radiator 114 and a feed and a tuning circuit electrically connected to the eighth radiator 118, so as to excite the fourth radiator 114 and the eighth radiator 118 to form sixth to ninth modes identical or similar to the sixth to ninth modes of the second radiator 112 and the seventh radiator 117. The descriptions of the fourth radiator 114 and the eighth radiator 118 can be referred to the descriptions of the second radiator 112 and the seventh radiator 117, and are not described in detail herein.

It is understood that, as shown in fig. 18, the first radiator 111, the second radiator 112, the third radiator 113, and the fourth radiator 114 may transmit low frequency signals, for example, a B5 band, a B8 band, and an N28 band; the fifth, sixth, seventh and

eighth radiators

115, 116, 117 and 118 may transmit medium and high frequency signals. It is understood that, when the antenna device 100 receives signals, in some embodiments, the first radiator 111 may support primary set reception (LB-PRX) of low frequency signals; the third radiator 113 may support diversity reception of low frequency signals (LB-DRX); the second radiator 112 may support multiple-input multiple-output main set reception (N28-PRX-MIMO) of the N28 band; the fourth radiator 114 may support multiple-input multiple-output diversity reception (N28-DRX-MIMO) of the N28 band; the fifth radiator 115 may support main set reception of medium and high frequency signals (MHB-PRX); the sixth radiator 116 may support diversity reception of medium and high frequency signals (MHB-DRX); the seventh radiator 117 may support multiple-input multiple-output primary set reception (MHB-PRX-MIMO) of medium and high frequency signals; the eighth radiator 118 may support multiple-input multiple-output diversity reception (MHB-DRX-MIMO) of medium and high frequency signals.

The antenna device 100 of the embodiment of the present application can form MIMO transmission of low-frequency signals and also MIMO transmission of medium-high frequency signals, and the frequency range covered by the antenna device 100 is wider. Meanwhile, the antenna device 100 supports 4 × 4 MIMO transmission with the base station, and the antenna device 100 has better signal and faster transmission rate. Particularly, in a remote place, the antenna device 100 having 4 × 4 MIMO mounted thereon is excellent in signal reception capability and high in download rate.

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. 19 and fig. 19, a schematic structural diagram of an electronic device 10 according to an embodiment of the present application is provided, where the electronic device 10 may further include a display 200, a middle frame 300, a circuit board 400, a battery 500, and a rear case 600 in addition to the antenna apparatus 100 according to any of the embodiments.

The display screen 200 is provided on the middle frame 300 to form a display surface of the electronic device 10 for displaying information such as images, texts, 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.

It can be understood that, when the middle frame 300 includes a metal material, the first to eighth radiators 111 to 118 may be a plurality of metal branches on the middle frame 300. For example, slots may be provided on the middle frame 300 to form the first to eighth radiators 111 to 118. At this time, the middle frame 300 may be multiplexed into a radiator, and the space occupied by the radiator may be saved. Also, when the middle frame 300 has a rectangular structure, the first side 101 to the fourth side 104 of the antenna device 100 may be four borders of the middle frame 300. The first radiator 111 to the eighth radiator 118 may be formed in other manners, such as, but not limited to, a patch form and a flexible circuit board 400, which is not limited in this embodiment of the present invention.

The circuit board 400 is 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 have a processor integrated thereon, and may further have one or more of a headset interface, an acceleration sensor, a gyroscope, a motor, and other functional components integrated thereon. 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. It is understood that one or more of the above-described feed and adjustment circuits of the antenna device 100 may be disposed on the circuit board 400. Of course, the above components may be provided on a small board of the electronic device 10, and are not limited herein.

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. Among other things, 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 to protect the electronic devices and functional components of the electronic device 10.

It should be understood that the above is only an exemplary example of the electronic device 10, and the electronic device 10 according to the embodiment of the present application may further include components such as a camera, a sensor, an acoustic-electric conversion device, and these components may refer to descriptions in the related art, and are not described herein again.

It should be noted that the above embodiments may be arbitrarily combined without conflict, and the embodiment scheme after combination still remains in the scope of protection of the embodiments of the present application. 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 principles and embodiments of the present application are described herein using specific examples, which are presented only to aid in the understanding 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 a first side, a second side, a third side and a fourth side connected in sequence, wherein the first side is arranged opposite to the third side, and the second side is arranged opposite to the fourth side; the antenna device further includes:

the second radiator is arranged on the second edge;

at least part of the third radiator is arranged on the third edge; and

a fourth radiator disposed on the fourth side; wherein,

2. The antenna device of claim 1, wherein the first radiator, the second radiator, the third radiator, and the fourth radiator are configured to support low frequency signals.

3. The antenna device according to claim 1, wherein the first radiator includes a first end and a second end disposed opposite to each other, and a first feeding point located between the first end and the second end, the first end being disposed on the first side, and the second end being disposed on the fourth side; the antenna device further includes:

the first feed source is electrically connected with the first feed point and is used for providing a first excitation signal for the first radiator; and

the first adjusting circuit is electrically connected to a region between the first end and the first feeding point at one end, grounded at the other end, and used for adjusting the first excitation signal so that the first radiator supports a wireless signal.

4. The antenna device according to claim 3, wherein the first adjusting circuit is configured to adjust the first excitation signal such that a radiation stub from the first feeding point to the first end supports a radio signal in a quarter-wavelength mode; and/or the presence of a gas in the gas,

the first adjusting circuit is configured to adjust the first excitation signal so that the first radiator supports wireless signals in a half-wavelength mode.

5. The antenna device according to claim 3, characterized in that the antenna device further comprises:

the fifth radiator is arranged on the first edge and comprises a third end and a fourth end which are arranged oppositely, and a second feeding point which is positioned between the third end and the fourth end, a first coupling gap is formed between the third end and the first end, and the fourth end is far away from the first radiator and is grounded;

and the second feed source is electrically connected to the second feed point and used for providing a second excitation signal so as to excite the fifth radiator to support the wireless signal.

6. The antenna device according to claim 5, further comprising:

the second adjusting circuit is electrically connected between the second feed source and the second feed point; wherein,

the second adjusting circuit is configured to adjust the second excitation signal and enable the fifth radiator to support a wireless signal in a quarter-wavelength mode; and/or the presence of a gas in the gas,

the second adjusting circuit is configured to adjust the second excitation signal, couple the second excitation signal to the first radiator through the first coupling gap, and ground the second excitation signal from the first adjusting circuit, so that a radiation branch between the second feeding point and the first adjusting circuit supports a wireless signal in a quarter-wavelength mode.

7. The antenna device according to claim 5, characterized in that the antenna device further comprises:

the second adjusting circuit is configured to adjust the second excitation signal and couple the second excitation signal to the first radiator through the first coupling gap, so that the first radiator supports a wireless signal in a wavelength mode.

8. The antenna device according to claim 5, characterized in that the antenna device further comprises:

and the sixth radiator is arranged on the third edge and is arranged at an interval with the third radiator, and the sixth radiator and the fifth radiator are symmetrically arranged about the central point.

9. The antenna device according to claim 1, further comprising:

the first feed source is electrically connected with the first radiating body and used for providing a first excitation signal for the first radiating body; and

and the detection circuit is electrically connected between the first feed source and the first radiator and is used for detecting the electromagnetic wave absorption ratio of the antenna device.

10. The antenna device according to any one of claims 1 to 9, wherein the second radiator includes a fifth end and a sixth end that are disposed opposite to each other, and a third feeding point located between the fifth end and the sixth end, and the sixth end is grounded; the antenna device further includes:

and the third feed source is electrically connected to the third feed point, the third feed source is used for providing a third excitation signal, and the third excitation signal is used for exciting a radiation branch from the third feed point to the sixth end to support a low-frequency signal in an eighth-wavelength mode.

11. The antenna device according to claim 10, further comprising:

a seventh radiator disposed on the second side, where the seventh radiator includes a seventh end and an eighth end that are disposed opposite to each other, and a fourth feeding point located between the seventh end and the eighth end, a second coupling gap is formed between the seventh end and the fifth end, and the eighth end is far away from the second radiator and is grounded; and

and the fourth feed source is electrically connected to the fourth feed point and used for providing a fourth excitation signal so as to excite the seventh radiator to support the wireless signal.

12. The antenna device according to claim 11, further comprising:

a third adjusting circuit electrically connected between the fourth feed source and the fourth feed point; wherein,

the third adjusting circuit is used for adjusting the fourth excitation signal and enabling the radiation branch between the seventh end and the eighth end to support a wireless signal in a quarter-wavelength mode; and/or the presence of a gas in the gas,

the third adjusting circuit is configured to adjust the fourth excitation signal and enable a radiation branch between the fourth feeding point and the seventh end to support a wireless signal in a quarter-wavelength mode.

13. The antenna device according to claim 11, further comprising:

a third adjusting circuit electrically connected between the fourth feed source and the fourth feed point; and

one end of the fourth regulating circuit is electrically connected between the third feed source and the third feed point, and the other end of the fourth regulating circuit is grounded;

the third adjusting circuit is configured to adjust the fourth excitation signal, couple the fourth excitation signal to the second radiator through the second coupling gap, and ground the fourth excitation signal through the fourth adjusting circuit, so that a radiation branch between the fifth end and the third feeding point supports a wireless signal in a quarter-wavelength mode.

14. The antenna device according to claim 11, further comprising:

and an eighth radiator disposed on the fourth side and spaced apart from the fourth radiator, wherein the eighth radiator and the seventh radiator are symmetrically disposed about the center point.

15. An electronic device, characterized in that it comprises an antenna device according to any of claims 1 to 14.