Antenna device and foldable electronic equipment

Abstract

The invention discloses an antenna device and foldable electronic equipment. The antenna device includes a housing member and a feed circuit. The shell component comprises a first shell, a second shell and a connecting mechanism, and the first shell is connected with the second shell in a foldable mode through the connecting mechanism so that the shell component can be in an unfolded state and a folded state. The first housing comprises a first antenna assembly, and the first antenna assembly comprises a first radiator. The second housing includes a second antenna assembly. The feed circuit is at least used for feeding the first radiator. When the antenna device is in a satellite communication state, the second antenna assembly can gain the first radiator. The antenna device can improve the radiation performance of the satellite antenna, so that the foldable electronic equipment has good satellite communication quality.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of electronics, and in particular, to an antenna device and a foldable electronic device. BACKGROUND

[0002] Mobile phones, tablets, communication watches and other electronic devices have become essential technology products in people's life, learning and entertainment process. With the development of communication technology, more and more electronic devices form a radiator on the metal frame to communicate, which can make full use of the internal space of the electronic device.

[0003] In the related art, foldable electronic devices can be folded for easy carrying; and have a larger display area when unfolded, and thus are increasingly favored by consumers. However, when the foldable electronic device performs satellite communication, the connection mechanism affects the radiation performance of the satellite antenna, making it difficult to improve the satellite communication quality. SUMMARY

[0004] The present disclosure provides an antenna device and a foldable electronic device. The antenna device can improve the radiation performance of the satellite antenna, so that the foldable electronic device has good satellite communication quality.

[0005] The technical solutions are as follows:

[0006] According to a first aspect of an embodiment of the present disclosure, an antenna device is provided, comprising a housing component and a feed circuit. The housing component comprises a first housing, a second housing and a connection mechanism, the first housing is foldably connected with the second housing through the connection mechanism, so that the housing component has an unfolded state and a folded state. The first housing comprises a first antenna assembly, and the first antenna assembly comprises a first radiator. The second housing comprises a second antenna assembly. The feed circuit is used at least for feeding the first radiator.

[0007] When the antenna device is in a satellite communication state, the first radiator is in a feeding state, so that the working frequency band of the first radiator is a satellite communication frequency band. The second antenna assembly is coupled and fed with the first radiator, and the first radiator is amplified.

[0008] The technical solutions provided by the embodiments of the present disclosure can include the following beneficial effects:

[0009] The antenna device can make full use of the space of the first shell to form the first antenna assembly and make full use of the space of the second shell to form the second antenna assembly. When the antenna device is in the satellite communication state, the shell component is in the unfolded state, so that the first antenna assembly and the second antenna assembly are arranged along the first direction. Moreover, the first radiator is fed by the feed circuit and works in the satellite communication frequency band. The second antenna assembly is coupled to the first radiator for feeding and can increase the gain of the first radiator. In this way, the other antennas of the second shell are used to increase the gain of the satellite communication antenna, which can reduce the adverse effect of the connecting mechanism on the satellite communication performance and improve the satellite communication quality of the foldable electronic device.

[0010] The technical solutions of the present disclosure are further described below:

[0011] In one of the embodiments, the satellite communication frequency band is the Tianhong satellite frequency band.

[0012] In one of the embodiments, the shell component is in the unfolded state, so that the first antenna assembly and the second antenna assembly are arranged along the first direction.

[0013] In one of the embodiments, when the antenna device is in the satellite communication state and the shell component is in the unfolded state, the second antenna assembly is coupled to the first radiator for feeding to at least increase the radiation direction of the first radiator.

[0014] In one of the embodiments, the second antenna assembly is coupled to the first radiator for feeding and acts as a perturbation unit to at least increase the radiation direction of the first radiator.

[0015] In one of the embodiments, the antenna device further comprises a first tuning circuit matched with the second antenna assembly.

[0016] When the antenna device is in the satellite communication state, the second antenna assembly is coupled to the first radiator for feeding, and the first tuning circuit tunes the second antenna assembly to form a perturbation unit and at least increase the radiation direction of the first radiator.

[0017] In one of the embodiments, the shell component is in the folded state, so that the first antenna assembly and the second antenna assembly are arranged along the second direction, and the second direction is perpendicular to the first direction.

[0018] In one of the embodiments, when the antenna device is in the satellite communication state and the shell component is in the folded state, the second antenna assembly is coupled to the first radiator for feeding to at least increase the radiation efficiency of the first radiator.

[0019] In one of the embodiments, the antenna device further comprises a second tuning circuit matched with the second antenna assembly.

[0020] When the antenna device is in the satellite communication state, the second antenna component is coupled to feed the first radiator, and the second tuning circuit tunes the second antenna component to at least increase the radiation efficiency of the first radiator.

[0021] In one of the embodiments, the first antenna component includes a second radiator adjacent to the first radiator.

[0022] When the antenna device is in the satellite communication state and the operating frequency band of the first radiator is the satellite communication frequency band, the second radiator is coupled to feed the first radiator to increase the first radiator.

[0023] In one of the embodiments, when the antenna device is in the satellite communication state and the operating frequency band of the first radiator is the satellite communication frequency band, the second radiator is coupled to feed the first radiator to increase the radiation efficiency of the first radiator.

[0024] In one of the embodiments, the antenna device further includes a third tuning circuit matched with the second radiator.

[0025] When the antenna device is in the satellite communication state and the operating frequency band of the first radiator is the satellite communication frequency band, the second radiator is coupled to feed the first radiator, and the third tuning circuit tunes the second radiator to at least increase the radiation efficiency of the first radiator.

[0026] In one of the embodiments, when the antenna device is in the satellite communication state, the third tuning circuit tunes the second radiator to have an operating frequency band of a first radiation frequency band higher than the satellite communication frequency band.

[0027] In one of the embodiments, the satellite communication frequency band includes a transmitting frequency band and a receiving frequency band, the transmitting frequency band is 1.98GHz-2GHz, and the receiving frequency band is 2.17GHz-2.2GHz.

[0028] And / or, the first radiation frequency band is 2.3GHz-3.2GHz.

[0029] In one of the embodiments, the second radiator includes two and is arranged at two sides of the first radiator, and the third tuning circuit includes two and is connected with the second radiator one by one.

[0030] In one of the embodiments, the first radiator includes a first arm body and a second arm body, one end of the first arm body is adjacent to one of the second radiators, the other end of the first arm body is connected with one end of the second arm body and grounded, and the other end of the second arm body is adjacent to the other second radiator.

[0031] When the antenna device is in the satellite communication state, one end of the first arm body is connected with the feeding circuit to feed to make the operating frequency band of the first arm body be the satellite communication frequency band.

[0032] The second radiator is coupled to the first arm for feeding, and the third tuning circuit tunes the second radiator to increase the first arm.

[0033] The second antenna assembly is coupled to the first arm for feeding and serves as a perturbation unit to increase the first arm.

[0034] In one embodiment, when the antenna device is in a satellite communication state, one end of the first arm is connected to the feeding circuit for feeding to form an IFA antenna.

[0035] In one embodiment, when the antenna device is in a satellite communication state, the fourth tuning circuit tunes the second arm to make the operating frequency band of the second arm a second radiation frequency band lower than the satellite communication frequency band.

[0036] In one embodiment, when the antenna device is in a satellite communication state, the fourth tuning circuit tunes the second arm to make the operating frequency band of the second arm a second radiation frequency band lower than the satellite communication frequency band.

[0037] In one embodiment, the satellite communication frequency band includes a transmitting frequency band and a receiving frequency band, the transmitting frequency band is 1.98GHz-2GHz, and the receiving frequency band is 2.17GHz-2.2GHz.

[0038] In one embodiment, the second radiation frequency band is 1.3GHz-1.9GHz.

[0039] In one embodiment, when the antenna device is in a satellite communication state, the third tuning circuit tunes the second radiator to make the operating frequency band of the second radiator a first radiation frequency band higher than the satellite communication frequency band, and the first radiation frequency band is 2.3GHz-3.2GHz.

[0040] In one embodiment, the length of the first radiator is 26mm-40mm, the length of the first arm is 12mm-25mm, and the length of the second radiator is 6mm-20mm.

[0041] In one embodiment, the length of the first radiator is 28mm, the length of the first arm is 13mm, the length of one of the second radiators is 16mm, and the length of the other second radiator is 19mm.

[0042] When the antenna device is in a satellite communication state, the satellite communication frequency band is 1.98GHz-2.2GHz, the operating frequency band of the second arm is 1.3GHz-1.9GHz, and the operating frequency band of the second radiator is 2.3GHz-3.2GHz.

[0043] In one of the embodiments, when the housing component is in the unfolded state, one end of the first radiator is in feeding cooperation with the feeding circuit and is arranged close to the second antenna assembly.

[0044] In one of the embodiments, when the antenna device is in the satellite communication state, at least one of the second radiator and the second antenna assembly is capable of working in the GPS frequency band.

[0045] In one of the embodiments, the first housing comprises a first metal middle frame, and the first radiator and the second radiator are formed through the outer frame of the first metal middle frame.

[0046] In one of the embodiments, the antenna device further comprises a first switching circuit, and the feeding circuit comprises a first sub-circuit and a second sub-circuit, and the first sub-circuit and the second sub-circuit are connected with the first switching circuit respectively.

[0047] When the antenna device is in the satellite communication state, the first switching circuit is in the first switching state, so that the second sub-circuit is in the open state, the first sub-circuit is in feeding cooperation with the first radiator, and the second radiator and the second antenna assembly are respectively coupled to feed the first radiator, so as to increase the first radiator.

[0048] When the antenna device is in the non-satellite communication state, the first switching circuit is in the second switching state, so that the first sub-circuit is in the open state, and the second sub-circuit is in feeding cooperation with at least one of the first radiator, the second radiator and the second antenna assembly, so as to generate a third radiation frequency band different from the satellite communication frequency band.

[0049] In one of the embodiments, the second antenna assembly comprises a third radiator and a fourth radiator adjacent to the third radiator, the length of the third radiator is the same as the length of the first radiator, and the length of the fourth radiator is the same as the length of the second radiator.

[0050] When the antenna device is in the satellite communication state, at least one of the third radiator and the fourth radiator is coupled to feed the first radiator, so as to increase the first radiator.

[0051] In one of the embodiments, when the housing component is in the unfolded state, the first radiator, the second radiator, the third radiator and the fourth radiator are arranged along a first direction.

[0052] When the antenna device is in the satellite communication state and the housing component is in the unfolded state, at least one of the third radiator and the fourth radiator is coupled to feed the first radiator, so as to at least increase the radiation direction of the first radiator.

[0053] In one of the embodiments, when the housing component is in the folded state, the first radiator and the second radiator overlap along a second direction, and the second radiator and the fourth radiator overlap along the second direction.

[0054] At least one of the third radiator and the fourth radiator is coupled to feed the first radiator to at least increase the radiation efficiency of the first radiator when the antenna device is in the satellite communication state and the housing component is in the folded state.

[0055] In one of the embodiments, the antenna device further comprises a fifth tuning circuit.

[0056] One of the third radiator and the fourth radiator is coupled to feed the first radiator and connected to the fifth tuning circuit to at least increase the radiation efficiency of the first radiator.

[0057] In one of the embodiments, the fifth tuning circuit tunes at least one of the third radiator and the fourth radiator to operate in a fourth radiation frequency band higher than the satellite communication frequency band when the antenna device is in the satellite communication state and the housing component is in the folded state.

[0058] In one of the embodiments, the satellite communication frequency band comprises a transmission frequency band and a reception frequency band, the transmission frequency band is 1.98 GHz-2 GHz, and the reception frequency band is 2.17 GHz-2.2 GHz.

[0059] And / or, the fourth radiation frequency band is 2.3 GHz-3.2 GHz.

[0060] And / or, the fourth radiator comprises two and is arranged at two sides of the third radiator, and the fifth tuning circuit comprises two and is connected to the fourth radiator one by one.

[0061] In one of the embodiments, the antenna device further comprises a second switching circuit, and the feed circuit comprises a first sub-circuit and a third sub-circuit, the first sub-circuit and the third sub-circuit are connected to the second switching circuit respectively.

[0062] When the antenna device is in the satellite communication state and the housing component is in the folded state, the second switching circuit is in a third switching state to make the second sub-circuit in an open state, the first sub-circuit is in a feeding cooperation with the first radiator, and at least one of the third radiator and the fourth radiator is coupled to feed the first radiator to increase the first radiator.

[0063] When the antenna device is in the non-satellite communication state, the second switching circuit is in a fourth switching state to make the first sub-circuit in an open state, and the second sub-circuit is in a feeding cooperation with at least one of the first radiator, the second radiator, the third radiator and the fourth radiator to generate a fifth radiation frequency band different from the satellite communication frequency band.

[0064] In one of the embodiments, the second housing comprises a second metal middle frame, and the third radiator and the fourth radiator are formed by an outer frame of the second metal middle frame.

[0065] In one of the embodiments, the feeding circuit comprises an impedance matching circuit. When the antenna device is in the satellite communication state, the first radiator is in the feeding state, and the impedance matching circuit makes the working frequency band of the first radiator be the satellite communication frequency band.

[0066] In one of the embodiments, the antenna device further comprises a sixth tuning circuit in tuning cooperation with the first radiator.

[0067] When the antenna device is in the satellite communication state, the first radiator is in the feeding state, and the sixth tuning circuit is tuned to make the working frequency band of the first radiator be the satellite communication frequency band.

[0068] According to a second aspect of the embodiments of the present disclosure, a foldable electronic device is further provided, comprising a circuit board, a flexible display screen, and the antenna device in any of the above embodiments. The circuit board is arranged in the housing component, and the feeding circuit and the third tuning circuit are arranged on the circuit board. At least part of the flexible display screen covers the first housing, the second housing, and the connecting mechanism.

[0069] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects:

[0070] The foldable electronic device applies the connecting mechanism in any of the above embodiments, can use other antennas that do not work in the satellite communication frequency band to boost the satellite communication antenna, and can improve the satellite communication quality of the foldable electronic device.

[0071] The technical solutions of the present disclosure are further described as follows:

[0072] In one of the embodiments, the foldable electronic device further comprises a camera module arranged in the first housing and a first display screen arranged in the second housing, and when the housing component is in the folded state, the camera module and the first display screen are arranged in the second direction.

[0073] And / or, the circuit board is a control mainboard and is arranged in the first housing.

[0074] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0075] The accompanying drawings, which are part of the present disclosure, are used to provide a further understanding of the present disclosure, and the illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure, and do not constitute an improper limitation on the present disclosure.

[0076] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0077] Figure 1 This is a schematic diagram of the structure of a foldable electronic device shown in one embodiment.

[0078] Figure 2 This is a rear view schematic diagram of a foldable electronic device in an unfolded state, as shown in one embodiment.

[0079] Figure 3 This is a rear view schematic diagram of a foldable electronic device in an unfolded state, as shown in one embodiment.

[0080] Figure 4 for Figure 3 The diagram shown is a top view of the foldable electronic device in its folded state.

[0081] Figure 5 This is a schematic diagram showing the connection between the first switching circuit and the antenna assembly of the antenna device in one embodiment.

[0082] Figure 6 This is a schematic diagram showing the connection between the second switching circuit and the antenna assembly of the antenna device shown in one embodiment.

[0083] Figure 7 for Figure 3 The diagram shows the current distribution of the antenna device in satellite communication mode.

[0084] Figure 8 for Figure 3 The diagram shows the current flow of the antenna device in satellite communication mode.

[0085] Figure 9 for Figure 3 The antenna device shown is a two-dimensional radiation pattern of the antenna in portrait mode.

[0086] Figure 10 for Figure 3 The antenna device shown is displayed in landscape orientation with a three-dimensional radiation pattern.

[0087] Figure 11 for Figure 3 The diagram shows the antenna performance of the antenna device in the satellite communication frequency band.

[0088] Figure 12 for Figure 3 A schematic diagram showing the radiation efficiency comparison of the first arm of the antenna device.

[0089] Figure 13 The antenna device shown in the antenna performance diagram of the satellite communication frequency band. Figure 4

[0090] Figure 14 The antenna device shown in the antenna performance diagram of the satellite communication frequency band. Figure 4

[0091] Figure 15 The hardware structure schematic diagram of the foldable electronic device shown in the antenna performance diagram of the satellite communication frequency band. Figure 1

[0092] BRIEF DESCRIPTION OF DRAWINGS

[0093] 10, foldable electronic device; 11, processing component; 12, memory; 13, power supply component; 14, multimedia component; 15, audio component; 16, input / output interface; 17, sensor component; 18, communication component; 10a, flexible display screen; 10b, antenna device; 100, shell component; 110, folding edge; 120, first shell; 121, first antenna component; 101, first radiator; 1011, first arm body; 1012, second arm body; 102, second radiator; 130, second shell; 131, second antenna component; 103, third radiator; 104, fourth radiator; 140, connecting mechanism; 200, feeding circuit; 210, first sub-circuit; 220, second sub-circuit; 230, third sub-circuit; 300, first tuning circuit; 400, third tuning circuit; 500, fourth tuning circuit; 600, first switching circuit; 700, fifth tuning circuit; 800, second switching circuit; 10c, circuit board; 10d, camera module. DETAILED DESCRIPTION

[0094] In order to make the objects, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and do not limit the protection scope of the present disclosure.

[0095] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the present disclosure herein is only for the purpose of describing the specific embodiments and is not intended to limit the present disclosure.

[0096] ​​​Electronic devices such as mobile phones and tablets have become essential technology products in people's life, study and entertainment process, bringing many conveniences and pleasures to people's life. With the development of the diversification of electronic device functions, there are various types and brands of electronic devices, which makes consumers have many choices for electronic devices, and only improving the functional characteristics of electronic devices cannot meet people's requirements for electronic devices.

[0097] With the increasing maturity of the application of flexible display screens, the application of flexible display screens on electronic devices is becoming more and more widespread. The foldable electronic device using the flexible display screen can be folded for convenient carrying. The flexible display screen has a larger display area after being unfolded, and thus is more and more favored by consumers. In the foldable electronic device with similar display size and performance, the better the communication performance of the foldable electronic device is, the more it can attract consumers to purchase.

[0098] In the related art, the foldable electronic device usually uses a connecting mechanism to realize the unfolding or folding of the flexible display screen. However, the connecting mechanism is arranged between the two shell bodies, and when a radiator is arranged on the shell body, the communication performance of the radiator will be affected by the connecting mechanism. In particular, when the foldable electronic device performs satellite communication, the control of the directivity pattern of the satellite antenna is more difficult due to the influence of the connecting mechanism, resulting in poor radiation performance of the satellite antenna and difficulty in improving the satellite communication quality of the foldable electronic device. For example, due to the existence of the connecting mechanism, the radiator of the foldable electronic device is difficult to be centered, especially in the unfolded state, which will seriously deviate from the symmetry line of the foldable electronic device, resulting in uneven current on both sides of the radiator, difficulty in obtaining an ideal directivity pattern, and thus poor satellite communication ability of the foldable electronic device.

[0099] Based on this, the present disclosure provides an antenna device. The antenna device can improve the radiation performance of the satellite antenna, so that the foldable electronic device has good satellite communication quality.

[0100] In order to better understand the antenna device of the present disclosure, the foldable electronic device applying the antenna device is described.

[0101] As Figure 1 and Figure 2As shown, in some embodiments of the present disclosure, a foldable electronic device 10 is provided, which includes a circuit board 10c, a flexible display screen 10a, and an antenna device 10b. The antenna device 10b includes a housing component 100, which includes a first housing 120, a second housing 130, and a connecting mechanism 140, the first housing 120 is foldably connected with the second housing 130 through the connecting mechanism 140, so that the housing component 100 has an unfolded state and a folded state. The circuit board 10c is arranged in the housing component 100. At least part of the flexible display screen 10a covers the first housing 120, the second housing 130, and the connecting mechanism 140. In this way, the folding or unfolding of the flexible display screen 10a is realized through the movement of the first housing 120 and the second housing 130 along with the connecting mechanism 140.

[0102] The antenna device 10b further includes a feed circuit 200 arranged on the circuit board 10c. The first housing 120 includes a first antenna assembly 121, which includes a first radiator 101. The second housing 130 includes a second antenna assembly 131. The feed circuit 200 is used at least for feeding the first radiator 101. When the antenna device 10b is in a satellite communication state, the first radiator 101 is in a feeding state, so that the working frequency band of the first radiator 101 is a satellite communication frequency band. The second antenna assembly 131 is coupled with the first radiator 101 for feeding and gain of the first radiator 101.

[0103] In this way, the antenna device 10b can make full use of the space of the first housing 120 to form the first antenna assembly 121, and make full use of the space of the second housing 130 to form the second antenna assembly 131. When the antenna device 10b is in a satellite communication state, the housing component 100 is in an unfolded state, so that the first antenna assembly 121 and the second antenna assembly 131 are arranged along a first direction. Moreover, the first radiator 101 is fed by the feed circuit 200 and works in the satellite communication frequency band. The second antenna assembly 131 is coupled with the first radiator 101 for feeding and gain of the first radiator 101. In this way, using other antennas of the second housing 130 to gain the satellite communication antenna can reduce the adverse effect of the connecting mechanism 140 on the satellite communication performance, and is beneficial to improve the satellite communication quality of the foldable electronic device 10.

[0104] It should be noted that the satellite communication frequency band can be selected according to the actual needs of the connected satellite, including but not limited to UHF (Ultra High Frequency), frequency range: 300MHz to 3GHz. L band, frequency range: 1GHz to 2GHz. S band, frequency range: 2GHz to 4GHz. C band, 4GHz to 8GHz. X band, frequency range: 8GHz to 12GHz, etc.

[0105] It should be noted that the connecting mechanism 140 includes a hinge mechanism or the like, and can realize unfolding and folding of the first shell 120 and the second shell 130.

[0106] In some embodiments, the satellite communication frequency band is a ThunSat frequency band. In this way, the ThunSat can be connected, and reliable and efficient satellite communication services can be provided for users.

[0107] In some embodiments, the shell component 100 is in an unfolded state, so that the first antenna assembly 121 and the second antenna assembly 131 are arranged in a first direction. In this way, when the second antenna assembly 131 is coupled and fed with the first radiator 101, it helps to homogenize the current of the first radiator 101, and can better utilize the gain of the second antenna assembly 131 to the first radiator 101.

[0108] In some embodiments, when the antenna device 10b is in a satellite communication state and the shell component 100 is in an unfolded state, the second antenna assembly 131 is coupled and fed with the first radiator 101 to at least increase the radiation direction of the first radiator 101. In this way, when the second antenna assembly 131 is coupled and fed with the first radiator 101, it helps to homogenize the current of the first radiator 101, and can better utilize the adjustment of the second antenna assembly 131 to the radiation direction of the first radiator 101, so that the radiation direction of the first radiator 101 is offset to the direction of the connecting mechanism 140, to facilitate the user to find the satellite.

[0109] In some embodiments, the second antenna assembly 131 is coupled and fed with the first radiator 101, and serves as a perturbation unit to at least increase the radiation direction of the first radiator 101. In this way, the perturbation unit can improve the radiation direction of the first radiator 101 to improve the satellite communication performance of the foldable electronic device 10.

[0110] It should be noted that the perturbation unit refers to a small feature or structure added in the antenna structure, which is used to change or optimize the electromagnetic performance of the antenna. These perturbation units can affect the key parameters of the antenna, such as the directional diagram, bandwidth, polarization characteristics, efficiency, and radiation mode. The design of the perturbation unit is usually to achieve specific performance goals, such as improving the bandwidth of the antenna, increasing the gain, realizing circularly polarized radiation, or reducing the size of the antenna.

[0111] In some embodiments, the antenna device 10b further comprises a first tuning circuit 300 tuned with the second antenna component. When the antenna device 10b is in the satellite communication state, the second antenna component 131 is coupled to feed the first radiator 101, and the first tuning circuit 300 tunes the second antenna component 131 to form a perturbation unit and at least increase the radiation direction of the first radiator 101. In this way, the first tuning circuit 300 can be better tuned to tune the second antenna component 131 to form a perturbation unit to improve the radiation direction of the first radiator 101.

[0112] In some embodiments, the housing component 100 is in a folded state, so that the first antenna component 121 and the second antenna component 131 are arranged in the second direction. In this way, the second antenna component 131 can be used to increase the first antenna component 121, and the antenna circuit is simplified.

[0113] As shown in Figures 1 to 3 the first direction is the X-axis direction, and the second direction is the Z-axis direction. In some embodiments, the first direction is the width direction of the foldable electronic device 10, and is also the length direction of the folding edge 110. The first housing 120 and the second housing 130 can be folded in the first direction. The second direction is the thickness direction of the foldable electronic device 10, and is also the direction of the first housing 120 and the second housing 130 after being folded and attached.

[0114] In other embodiments, the first direction is the length direction of the foldable electronic device 10, and is also the length direction of the folding edge 110. The Y-axis direction is the width direction of the foldable electronic device 10.

[0115] In combination with the above embodiments, in some embodiments, when the antenna device 10b is in the satellite communication state and the housing component 100 is in the folded state, the second antenna component 131 is coupled to feed the first radiator 101 to at least increase the radiation efficiency of the first radiator 101. Since the first antenna component 121 and the second antenna component 131 are arranged in the second direction after the housing component 100 is folded, the second antenna component 131 can act as a parasitic branch of the first radiator 101, and then the second antenna component 131 is coupled to feed the first radiator 101 to at least increase the radiation efficiency of the first radiator 101, which can improve the satellite communication performance of the foldable electronic device 10 in the folded state.

[0116] In some embodiments, the antenna device 10b further comprises a second tuning circuit (not shown) cooperating with the second antenna component 131 for tuning. When the antenna device 10b is in the satellite communication state, the second antenna component 131 is coupled to feed the first radiator 101, and the second tuning circuit tunes the second antenna component 131 to at least increase the radiation efficiency of the first radiator 101. In this way, the second tuning circuit can better tune the second antenna component 131, and the second antenna component 131 can be tuned as a parasitic branch to increase the radiation efficiency of the first radiator 101.

[0117] In some embodiments, the first antenna component 121 comprises a second radiator 102 adjacent to the first radiator 101. When the antenna device 10b is in the satellite communication state and the operating frequency band of the first radiator 101 is the satellite communication frequency band, the second radiator 102 is coupled to feed the first radiator 101 to increase the first radiator 101. In this way, the second radiator 102 adjacent to the first radiator 101 is used to increase the satellite communication antenna, which can reduce the adverse effects of the connecting mechanism 140 on satellite communication performance, and is conducive to improving the satellite communication quality of the foldable electronic device 10.

[0118] In some embodiments, when the antenna device 10b is in the satellite communication state and the operating frequency band of the first radiator 101 is the satellite communication frequency band, the second radiator 102 is coupled to feed the first radiator 101 to increase the radiation efficiency of the first radiator 101. In this way, the second radiator 102 can be a parasitic branch of the first radiator 101, and then the second antenna component 131 is coupled to feed the first radiator 101 to at least increase the radiation efficiency of the first radiator 101, which can improve the satellite communication performance of the foldable electronic device 10 in the folded state.

[0119] In some embodiments, the antenna device 10b further comprises a third tuning circuit 400 cooperating with the second radiator 102 for tuning. When the antenna device 10b is in the satellite communication state and the operating frequency band of the first radiator 101 is the satellite communication frequency band, the second radiator 102 is coupled to feed the first radiator 101, and the third tuning circuit 400 tunes the second radiator 102 to at least increase the radiation efficiency of the first radiator 101.

[0120] Thus, the antenna device 10b can make full use of the space of the first housing 120 to form the first antenna assembly 121, and make full use of the space of the second housing 130 to form the second antenna assembly 131. When the antenna device 10b is in the satellite communication state, the folding edge 110 is in the unfolded state, so that the first antenna assembly 121 and the second antenna assembly 131 are arranged along the first direction. Moreover, the first radiator 101 is fed by the feeding circuit 200 and works in the satellite communication frequency band. The second radiator 102 is coupled and fed with the first radiator 101, and the third tuning circuit 400 tunes the second radiator 102 to increase the first radiator 101. The second antenna assembly 131 is coupled and fed with the first radiator 101, and also increases the first radiator 101. Thus, using other antennas that do not work in the satellite communication frequency band to increase the satellite communication antenna can reduce the adverse effects of the connecting mechanism 140 on the satellite communication performance, and is beneficial to improving the satellite communication quality of the foldable electronic device 10.

[0121] Therefore, after the first radiator 101 works in the satellite communication frequency band, the second radiator 102 is coupled and fed with the first radiator 101, the third tuning circuit 400 tunes the second radiator 102 to increase the first radiator 101, which can improve the radiation efficiency of the first radiator 101. Moreover, using the second antenna assembly 131 as a perturbation unit to also increase the first radiator 101 can optimize the current direction. Furthermore, when the foldable electronic device 10 performs satellite communication, it can have a better direction pattern of the folding edge 110, and improve the satellite communication performance.

[0122] It should be noted that in some embodiments, when the foldable electronic device 10 is in a portrait state for use, the folding edge 110 is the top of the foldable electronic device 10. When the foldable electronic device 10 is in a landscape state for use, the folding edge 110 is disposed opposite to the side held by the left hand of the user.

[0123] In some embodiments, the first housing 120 includes a first metal middle frame, and the first radiator 101 and the second radiator 102 are formed by the outer frame of the first metal middle frame. Thus, using the first metal middle frame can improve the protection performance of the foldable electronic device 10. Moreover, using the outer frame of the first metal middle frame to form the first radiator 101 and the second radiator 102 makes the structure of the foldable electronic device 10 more compact.

[0124] Optionally, the first radiator 101 and the second radiator 102 are disposed on the folding edge 110 adjacent to the connecting mechanism 140.

[0125] In some embodiments, when the antenna device 10b is in the satellite communication state, the third tuning circuit 400 tunes the second radiator 102 so that the operating frequency band of the second radiator 102 is the first radiation frequency band which is higher than the satellite communication frequency band. In this way, when the antenna device 10b is in the satellite communication state, the second radiator 102 can act as an electric parasitic branch of the first radiator 101 to boost the first radiator 101, thereby improving the radiation efficiency of the first radiator 101.

[0126] Optionally, in some embodiments, the satellite communication frequency band includes a transmitting frequency band and a receiving frequency band, the transmitting frequency band is 1.98 GHz-2 GHz, and the receiving frequency band is 2.17 GHz-2.2 GHz. This facilitates connection with the Tianhong satellite and provides reliable and efficient satellite communication services for users.

[0127] Optionally, in some embodiments, the first radiation frequency band is 2.3 GHz-3.2 GHz. This can effectively tune and boost the first radiator 101.

[0128] In combination with any of the above embodiments, as shown in Figure 2 and Figure 3 , in some embodiments, the second radiator 102 includes two and is arranged on both sides of the first radiator 101, and the third tuning circuit 400 includes two and is connected to the second radiator 102 one by one. In this way, the first shell 120 can integrate multiple radiation frequency bands at the folding edge 110, so that the structure of the foldable electronic device 10 is more compact and has good communication performance.

[0129] As shown in Figure 3 , Figure 11 and Figure 12As shown, in some embodiments, the first radiator 101 comprises a first arm 1011 and a second arm 1012, one end of the first arm 1011 is adjacent to one of the second radiators 102, the other end of the first arm 1011 is connected to one end of the second arm 1012 and grounded, and the other end of the second arm 1012 is adjacent to the other second radiator 102. When the antenna device 10b is in the satellite communication state, the folding edge 110 is in the unfolded state, one end of the first arm 1011 is in feeding connection with the feeding circuit 200, so that the working frequency band of the first arm 1011 is the satellite communication frequency band. The second radiator 102 is coupled to feed the first arm 1011, and the third tuning circuit 400 tunes the second radiator 102 to boost the first arm 1011. The second antenna assembly 131 is coupled to feed the first arm 1011 and serves as a perturbation unit to boost the first arm 1011. In this way, the first arm 1011 is fed by the feeding circuit 200 and works in the satellite communication frequency band. The second radiator 102 is coupled to feed the first arm 1011, and the third tuning circuit 400 tunes the second radiator 102 to boost the first arm 1011. The second antenna assembly 131 is coupled to feed the first arm 1011 and also serves as a perturbation unit to boost the first arm 1011. In this way, other antennas that do not work in the satellite communication frequency band are used to boost the satellite communication antenna, which can reduce the adverse effects of the connecting mechanism 140 on the satellite communication performance and improve the satellite communication quality of the foldable electronic device 10.

[0130] When the antenna device 10b is in the non-satellite communication state, the first arm 1011 and the second arm 1012 can radiate in other frequency bands, and the first housing 120 can fully utilize the space at the folding edge 110 to integrate multiple radiation frequency bands, so that the foldable electronic device 10 has a more compact structure and good communication performance.

[0131] In combination with the above embodiments, in some embodiments, when the antenna device 10b is in the satellite communication state, one end of the first arm 1011 is in feeding connection with the feeding circuit 200 to form an IFA antenna. In this way, the first radiator 101 has a more compact structure, stable radiation performance, and reduced impedance matching difficulty, and its radiation performance can be better adjusted.

[0132] It should be noted that the IFA antenna is the full name of the Inverted-F Antenna (also known as the inverted-F antenna).

[0133] As Figure 3As shown, in some embodiments, the antenna device 10b further comprises a fourth tuning circuit 500 connected with the second arm 1012. When the antenna device 10b is in the satellite communication state, the second arm 1012 magnetically parasitically cooperates with the first arm 1011, and the fourth tuning circuit 500 tunes the second arm 1012 to increase the first arm 1011. In this way, the first arm 1011 is fed by the feeding circuit 200 and works in the satellite communication frequency band. The second arm 1012 magnetically parasitically cooperates with the first arm 1011, and the fourth tuning circuit 500 tunes the second arm 1012 to increase the first arm 1011. The radiation efficiency of the first arm 1011 can be further improved.

[0134] In some embodiments, when the antenna device 10b is in the satellite communication state, the fourth tuning circuit 500 tunes the second arm 1012 to make the working frequency band of the second arm 1012 be a second radiation frequency band lower than the satellite communication frequency band. In this way, when the antenna device 10b is in the satellite communication state, the second arm 1012 can act as a magnetic parasitic branch of the first radiator 101 to increase the first radiator 101, cooperate with the second radiator 102, and further improve the radiation efficiency of the first radiator 101.

[0135] Optionally, in some embodiments, the satellite communication frequency band comprises a transmitting frequency band and a receiving frequency band, the transmitting frequency band is 1.98GHz-2GHz, and the receiving frequency band is 2.17GHz-2.2GHz. The second radiation frequency band is 1.3GHz-1.9GHz. It is convenient to connect with the Tianhong satellite and effectively tune the second arm 1012 to increase the first radiator 101, so as to provide reliable and efficient satellite communication services for users.

[0136] In combination with the first radiation frequency band, in some embodiments, when the antenna device 10b is in the satellite communication state, the third tuning circuit 400 tunes the second radiator 102 to make the working frequency band of the second radiator 102 be a first radiation frequency band higher than the satellite communication frequency band, and the first radiation frequency band is 2.3GHz-3.2GHz. In this way, the second arm 1012 cooperates with the second radiator 102 to effectively improve the radiation efficiency of the first radiator 101.

[0137] In some embodiments, the length of the first radiator 101 is 26mm-40mm, the length of the first arm 1011 is 12mm-25mm, and the length of the second radiator 102 is 6mm-20mm.

[0138] As shown in FIG. 1, the antenna device 10b comprises a first radiator 101, a second radiator 102, a first arm 1011, a second arm 1012, a feeding circuit 200, a first tuning circuit 300, a second tuning circuit 400, and a third tuning circuit 500. Figures 7 to 12As shown, in an example, the length of the first radiator 101 is 28 mm; the length of the first arm 1011 is 13 mm, the length of the second radiator 102 is 16 mm, and the length of the other second radiator 102 is 19 mm. When the antenna device 10b is in a satellite communication state, the satellite communication frequency band is 1.98 GHz-2.2 GHz, the working frequency band of the second arm 1012 is 1.3 GHz-1.9 GHz, and the working frequency band of the second radiator 102 is 2.3 GHz-3.2 GHz. In this way, the resonant frequency of the second arm 1012 is tuned to between 1.3 GHz-1.9 GHz by the fourth tuning circuit 500. The tuning frequency of the second arm 1012 is tuned to between 2.3 GHz-3.2 GHz by the fourth tuning circuit 500. The intrinsic mode frequency of the second antenna assembly 131 is tuned to 2.2 GHz by the inductance, capacitance, and other devices, and in a vertical screen state, the current can be uniformly distributed on the top of the foldable electronic device 10, thereby achieving an increase of more than 1 dB in the directivity of the top towards the satellite direction. The resonances after increasing the magnetic parasitic and the electric parasitic are as follows: the frequency of the first radiator is 2.2 GHz, the magnetic parasitic frequency is 1.75 GHz, and the electric parasitic is 3 GHz.

[0139] It should be noted that when the electronic device is a mobile phone and a tablet computer, the top includes the frame position close to the front camera. When the electronic device is other devices, the top includes the side facing the sky when the electronic device is used for satellite searching. Of course, the above examples are explanations of the top and not limitations. The top can be set according to the actual situation.

[0140] It should be noted that the "radiator" is also called a radiation arm, and the length thereof is the actual physical length of the radiating element. However, it is considered that the length of one radiator is "the same" as the length of another radiator, including complete identity and substantial identity, and there can be manufacturing errors, and the similar effects can be achieved.

[0141] The accompanying drawings are combined Figures 7 to 11 It can be seen that, Figure 7 When the first radiator works in the satellite communication frequency band, the current of the top of the foldable electronic device in the unfolded state is uniformly distributed. Figure 8 When the first radiator works in the satellite communication frequency band, the current flow direction of the top of the foldable electronic device in the unfolded state is combined Figure 7 and Figure 8 As shown, the current of the top can be more uniformly distributed on the top frame, and the current flows in the same direction, so that the radiation performance of the first radiator is good.

[0142] In an example, the accompanying drawings are combined Figure 7 and Figure 8It can be seen that after the first radiator 101 works in the satellite communication frequency band, the second radiator 102 is coupled and fed with the first radiator 101, and the third tuning circuit 400 tunes the second radiator 102 to increase the radiation efficiency of the first radiator 101. As shown in Figures 8 to 10 the second antenna assembly 131 is used as a perturbation unit to increase the first radiator 101, which can optimize the current direction. Furthermore, in the vertical screen use state of the folding edge 110, there can be +1.2dB i of left-handed directionality, and 120 degrees can have +4dBi or so of left-handed directionality. Furthermore, when the foldable electronic device 10 performs satellite communication, a better directivity pattern can be formed on the folding edge 110, thereby improving the satellite communication performance.

[0143] And Figure 9 For the foldable electronic device in the unfolded state and the first radiator working in the satellite communication frequency band, the antenna pattern of the antenna device in the vertical screen use state. That is, in the vertical screen use scene, even if the user's left and right hands hold the foldable electronic device 10 at the same time, it will not affect the satellite communication performance of the foldable electronic device 10, which is greatly improved compared with the traditional scheme. As shown in Figure 9 in the vertical screen use scene, even if the user's left and right hands hold the foldable electronic device 10 at the same time, it will not affect the satellite communication performance of the foldable electronic device 10, which can use a beam of about 30 degrees to perform satellite operation, which is about 2dB higher than the traditional scheme.

[0144] And Figure 10 For the foldable electronic device in the unfolded state and the first radiator working in the satellite communication frequency band, the antenna pattern of the antenna device in the horizontal screen use state. That is, in the horizontal screen use scene, even if the user's left hand holds the foldable electronic device 10 and the right hand does not hold it, it can also realize satellite communication performance such as dialing and sending messages, which is greatly improved compared with the traditional scheme. As shown in Figure 10 in the horizontal screen use scene, even if the user's left hand holds the foldable electronic device 10 and the right hand does not hold it, it can also realize satellite communication performance such as dialing and sending messages, which is about 3dB higher than the traditional scheme.

[0145] Figure 11 For the foldable electronic device in the unfolded state and the first radiator working in the satellite communication frequency band, its antenna performance diagram. Figure 12 For the foldable electronic device in the unfolded state and the first radiator working in the satellite communication frequency band, the radiation efficiency comparison diagram of the first arm body. The ordinate represents the return loss, and the abscissa represents the frequency. Combined with Figure 11The return loss is -4.855065 GHz dBi for frequency band 1 (1.758 GHz), -11.59323 dBi for frequency band 2 (2.2 GHz), and -3.148428 GHz i for frequency band 3 (3.02913 GHz). This analysis shows that the technical solution disclosed herein enables the first radiator to achieve good satellite communication quality in its deployed state, meeting satellite communication requirements.

[0146] In some embodiments, when the housing component 100 is in the unfolded state, one end of the first radiator 101 is fed by the feeding circuit 200 and positioned close to the second antenna assembly 131. This facilitates the formation of a T-antenna and better optimizes the current flow of the first radiator 101 operating in the satellite communication frequency band, ensuring that the current is evenly distributed when the folded edge 110 is in the unfolded state, resulting in better left-hand circular polarization directivity.

[0147] Optionally, in some embodiments, the power supply circuit 200 includes an impedance matching circuit. When the antenna device 10b is in satellite communication mode, the first radiator 101 is in a powered state, and the impedance matching circuit ensures that the operating frequency band of the first radiator 101 is the satellite communication frequency band. Thus, the transmission efficiency, power handling, bandwidth, and radiation efficiency of the first radiator 101 can be easily adjusted through the impedance matching circuit, thereby improving the satellite communication performance of the foldable electronic device 10.

[0148] It should be noted that there are various ways to implement impedance matching circuits, such as connecting capacitors and inductors in series or in parallel to form an LC network to achieve the required impedance transformation.

[0149] like Figure 2 As shown, in some embodiments, the antenna device 10b further includes a sixth tuning circuit 500 that is tuned in conjunction with the first radiator 101. When the antenna device 10b is in satellite communication mode, the first radiator 101 is in a fed state, and the sixth tuning circuit 500 tunes to make the operating frequency band of the first radiator 101 the satellite communication frequency band.

[0150] like Figure 2 As shown, in some embodiments, the second antenna assembly 131 includes at least one radiator, and the antenna device 10b further includes a first tuning circuit 300 that tunes in conjunction with the second antenna assembly. When the antenna device 10b is in satellite communication mode, the radiator is coupled and fed to the first radiator 101, and the first tuning circuit 300 tunes to form a perturbation element to gain the first radiator 101. Thus, when the first radiator 101 is fed by the feeding circuit 200 and operates in the satellite communication frequency band, the first tuning circuit 300 tunes the radiator to form a perturbation element to gain the first radiator 101. This is easy to implement and can reduce the antenna design difficulty of the foldable electronic device 10.

[0151] In some embodiments, when the antenna device 10b is in satellite communication mode, at least one of the second radiator 102 and the second antenna assembly 131 can operate in the GPS frequency band. Thus, when the foldable electronic device 10 is in satellite communication mode, it facilitates cooperation with GPS (Global Positioning System) to achieve functions such as tracking, positioning, and synchronization. In some states, the GPS frequency band can also be used to enhance satellite communication quality.

[0152] In combination with any of the above embodiments, such as Figure 5 As shown, in some embodiments, the antenna device 10b further includes a first switching circuit 600, and the feed circuit 200 includes a first sub-circuit 210 and a second sub-circuit 220, which are respectively connected to the first switching circuit 600.

[0153] When the antenna device 10b is in satellite communication mode, the first switching circuit 600 is in the first switching state, so that the second sub-circuit 220 is in the off state, and the first sub-circuit 210 is fed to the first radiator 101. The second radiator 102 and the second antenna assembly 131 are respectively coupled to the first radiator 101 to increase the gain of the first radiator 101.

[0154] When the antenna device 10b is in a non-satellite communication state, the first switching circuit 600 is put into a second switching state, so that the first sub-circuit 210 and the third tuning circuit 400 are disconnected, and the second sub-circuit 220 is fed in coordination with at least one of the first radiator 101, the second radiator 102 and the second antenna assembly 131 to generate a third radiation frequency band different from the satellite communication frequency band.

[0155] Thus, by utilizing the first switching circuit 600, the first sub-circuit 210, and the second sub-circuit 220, multiple radiation frequency bands can be integrated on the folding edge 110 using the first housing 120 and the second housing 130, making the structure of the foldable electronic device 10 more compact and giving it good communication performance.

[0156] It should be noted that the first switching circuit 600 and the second sub-circuit correspond one-to-one with the radiator that needs to be switched.

[0157] For example, such as Figure 5As shown, the first radiator 101 is connected to the second sub-circuit 220 and the first sub-circuit 210 via a first switching circuit 600. When the first switching circuit 600 is in a first switching state, the first sub-circuit 210 is powered and connected to the first radiator 101, while the second sub-circuit 220 is disconnected from the first radiator 101. When the first switching circuit 600 is in a second switching state, the first sub-circuit 210 is disconnected from the first radiator 101, while the second sub-circuit 220 is powered and connected to the first radiator 101.

[0158] For example, such as Figure 5 As shown, the second radiator 102 is connected to the second sub-circuit 220 and the third tuning circuit 400 via a first switching circuit 600. When the first switching circuit 600 is in a first switching state, the second sub-circuit 220 is disconnected from the second radiator 102, while the third tuning circuit 400 is tuned to the second radiator 102. When the first switching circuit 600 is in a second switching state, the second sub-circuit 220 is powered to the second radiator 102, while the third tuning circuit 400 is disconnected from the second radiator 102.

[0159] For example, such as Figure 5 As shown, the second antenna assembly 131 is connected to the second sub-circuit 220 and the first tuning circuit 300 via a first switching circuit 600. In the third switching state, when the first switching circuit 600 is in the first switching state, the second sub-circuit 220 is disconnected from the second antenna assembly 131, while the first tuning circuit 300 is tuned to the second antenna assembly 131. In the fourth switching state, when the first switching circuit 600 is in the first switching state, the second sub-circuit 220 is powered to the second antenna assembly 131, while the first tuning circuit 300 is disconnected from the second antenna assembly 131.

[0160] Understandably, the satellite communication function of the foldable electronic device 10 is a non-normal use case. Therefore, in the non-satellite communication state, by using the second sub-circuit 220 in conjunction with the power supply of at least one of the first radiator 101, the second radiator 102, and the second antenna assembly 131, a third radiation frequency band different from the satellite communication frequency band can be generated. This can effectively utilize the first antenna assembly 121 and the second antenna assembly 131 for communication, improving their effective utilization rate. It can also ensure the communication performance of the foldable electronic device 10 in the unfolded state.

[0161] In combination with any of the above embodiments, such as Figure 3 as well as Figure 12As shown, in some embodiments, the second antenna assembly 131 includes a third radiator 103 and a fourth radiator 104 adjacent to the third radiator 103. The length of the third radiator 103 can be the same as the length of the first radiator 101, and the length of the fourth radiator 104 can be the same as the length of the second radiator 102. When the antenna device 10b is in satellite communication mode, at least one of the third radiator 103 and the fourth radiator 104 is coupled and fed to the first radiator 101 to gain the first radiator 101. This allows the second housing 130 to integrate multiple radiation bands on the folding edge 110, making the foldable electronic device 10 more compact and providing good communication performance. When the first radiator 101 is fed by the feeding circuit 200 and operates in the satellite communication band, at least one of the third radiator 103 and the fourth radiator 104 is coupled and fed to the first radiator 101 to gain the first radiator 101. This is easy to implement and reduces the flexibility of antenna design for the foldable electronic device 10.

[0162] In some embodiments, the housing component 100 is in an unfolded state, and the first radiator 101, the second radiator 102, the third radiator 103, and the fourth radiator 104 are arranged along a first direction. When the antenna device 10b is in satellite communication mode and the housing component 100 is in the unfolded state, at least one of the third radiator 103 and the fourth radiator 104 is coupled and fed to the first radiator 101 to at least increase the radiation direction of the first radiator 101. Thus, when at least one of the third radiator 103 and the fourth radiator 104 is coupled and fed to the first radiator 101, it helps to uniformize the current of the first radiator 101, and can better utilize the second antenna assembly 131 to adjust the radiation direction of the first radiator 101, so that the radiation direction of the first radiator 101 is shifted towards the connection mechanism 140, so as to facilitate the user's satellite search.

[0163] In some embodiments, at least one of the third radiator 103 and the fourth radiator 104 is coupled and fed to the first radiator 101, and serves as a perturbation unit to at least increase the radiation direction of the first radiator 101. Thus, the perturbation unit can improve the radiation direction of the first radiator 101, thereby enhancing the satellite communication performance of the foldable electronic device 10.

[0164] In some embodiments, when the housing component 100 is in a folded state, the first radiator 101 and the second radiator 102 overlap along a second direction, and the second radiator 102 and the fourth radiator 104 overlap along a second direction. When the antenna device 10b is in satellite communication mode and the housing component 100 is in a folded state, at least one of the third radiator 103 and the fourth radiator 104 is coupled and fed to the first radiator 101 to at least increase the radiation efficiency of the first radiator 101. Since the first radiator 101 and the second radiator 102 overlap along the second direction, and the second radiator 102 and the fourth radiator 104 overlap along the second direction after the housing component 100 is folded, the second antenna assembly 131 can act as a parasitic branch of the first radiator 101. Furthermore, by coupling and feeding the second antenna assembly 131 to the first radiator 101 to at least increase the radiation efficiency of the first radiator 101, the satellite communication performance of the foldable electronic device 10 in the folded state can be improved.

[0165] like Figure 4 , Figure 13 as well as Figure 14 As shown, in some embodiments, the antenna device 10b further includes a fifth tuning circuit 700. When the antenna device 10b is in satellite communication mode and the housing component 100 is in a folded state, the second radiator 102 is coupled and fed to the first radiator 101 to gain the first radiator 101. One of the third radiator 103 and the fourth radiator 104 is coupled and fed to the first radiator 101 and connected to the fifth tuning circuit 700 to at least gain the radiation efficiency of the first radiator 101. Thus, the fifth tuning circuit 700 can better tune one of the third radiator 103 and the fourth radiator 104, and can tune one of the third radiator 103 and the fourth radiator 104 into a parasitic branch to improve the radiation efficiency of the first radiator 101.

[0166] Figure 13 This diagram illustrates the antenna performance of a foldable electronic device in its folded state, with the first radiator operating in a satellite communication frequency band. The vertical axis represents return loss, and the horizontal axis represents frequency. Analysis shows that the return loss is -9.436599 dBi for band 1 (2.582704 GHz), -25.03536 dBi for band 2 (2.840918 GHz), -12.31407 dBi for band 3 (1.708452 GHz), and -19.98715 dBi for band 4 (2.2 GHz). Therefore, the technical solution disclosed in this paper enables the first radiator to achieve good satellite communication quality in its folded state, meeting satellite communication requirements. Figure 14 The antenna pattern of a foldable electronic device in its folded state, with the first radiator operating in a satellite communication band. Combined with...Figure 14 Analysis shows that the first radiator has good radiation directionality when folded, making it easy for users to find stars.

[0167] In some embodiments, when the antenna device 10b is in satellite communication mode and the folded edge 110 is in a folded state, the fifth tuning circuit 700 tunes at least one of the third radiator 103 and the fourth radiator 104 to make its operating frequency band a fourth radiation frequency band higher than the satellite communication frequency band.

[0168] Optionally, in some embodiments, the fourth radiation frequency band is 2.3 GHz to 3.2 GHz.

[0169] like Figure 6 As shown, in some embodiments, the antenna device 10b further includes a second switching circuit 800, and the power supply circuit 200 includes a first sub-circuit 210 and a third sub-circuit 230, which are respectively connected to the second switching circuit 800.

[0170] When the antenna device 10b is in satellite communication mode and the housing component 100 is in a folded state, the second switching circuit 800 is in a third switching state, so that the second sub-circuit 220 is in a disconnected state, and the first sub-circuit 210 is fed in coordination with the first radiator 101, and at least one of the third radiator 103 and the fourth radiator 104 is coupled to the first radiator 101 for power supply, so as to gain the first radiator 101.

[0171] When the antenna device 10b is in a non-satellite communication state, the second switching circuit 800 is switched to a fourth switching state, causing the first sub-circuit 210 to be disconnected. This allows the second sub-circuit 220 to be fed in conjunction with at least one of the first radiator 101, the second radiator 102, and the fourth radiator 104 to generate a fifth radiation band different from the satellite communication band. Thus, by utilizing the second switching circuit 800, the first sub-circuit 210, and the third sub-circuit 230, multiple radiation bands can be integrated on the folding edge 110 using the first housing 120 and the second housing 130, resulting in a more compact structure for the foldable electronic device 10 and good communication performance.

[0172] It should be noted that the second switching circuit 800 and the second sub-circuit correspond one-to-one with the radiator that needs to be switched.

[0173] For example, such as Figure 6As shown, the first radiator 101 is connected to the second sub-circuit 220 and the first sub-circuit 210 via a second switching circuit 800. In the third switching state, when the second switching circuit 800 is in operation, the first sub-circuit 210 is powered and connected to the first radiator 101, while the second sub-circuit 220 is disconnected from the first radiator 101. In the fourth switching state, when the second switching circuit 800 is in operation, the first sub-circuit 210 is disconnected from the first radiator 101, while the second sub-circuit 220 is powered and connected to the first radiator 101.

[0174] For example, such as Figure 6 As shown, the second radiator 102 is connected to the second sub-circuit 220 and the third tuning circuit 400 via a second switching circuit 800. In the third switching state, when the second switching circuit 800 is in the second switching state, the second sub-circuit 220 is disconnected from the second radiator 102, while the third tuning circuit 400 is tuned to the second radiator 102. In the fourth switching state, when the second switching circuit 800 is in the second switching state, the second sub-circuit 220 is powered to the second radiator 102, while the third tuning circuit 400 is disconnected from the second radiator 102.

[0175] For example, such as Figure 6 As shown, the third radiator 103 is connected to the second sub-circuit 220 and the fifth tuning circuit 700 via a second switching circuit 800. In the third switching state, when the second switching circuit 800 is in the second switching state, the second sub-circuit 220 is disconnected from the third radiator 103, while the fifth tuning circuit 700 is tuned to the third radiator 103. In the fourth switching state, when the second switching circuit 800 is in the second switching state, the second sub-circuit 220 is powered to the third radiator 103, while the fifth tuning circuit 700 is disconnected from the third radiator 103.

[0176] For example, such as Figure 6 As shown, the fourth radiator 104 is connected to the second sub-circuit 220 and the fifth tuning circuit 700 via a second switching circuit 800. When the second switching circuit 800 is in the third switching state, the second sub-circuit 220 is disconnected from the third radiator 103, and the fifth tuning circuit 700 is tuned to the fourth radiator 104. When the second switching circuit 800 is in the fourth switching state, the second sub-circuit 220 is powered to the fourth radiator 104, and the fifth tuning circuit 700 is disconnected from the third radiator 103.

[0177] Understandably, the satellite communication function of the foldable electronic device 10 is a non-standard usage scenario. Therefore, in non-satellite communication mode, by coordinating the power supply of the third sub-circuit 230 with at least one of the third radiator 103 and the fourth radiator 104, a third radiation frequency band different from the satellite communication frequency band can be generated. This allows for effective communication using the first antenna assembly 121 and the second antenna assembly 131, improving their utilization rate. It also enhances the communication performance of the foldable electronic device 10 in its folded state.

[0178] In some embodiments, two fourth radiators 104 are spaced apart on either side of the third radiator 103, and two fifth tuning circuits 700 are connected to the fourth radiators 104 in a one-to-one correspondence. Thus, the second housing 130 can integrate multiple radiation bands at the folding edge 110, making the foldable electronic device 10 more compact and providing good communication performance.

[0179] Optionally, such as Figure 3 , Figure 4 as well as Figure 13 As shown, the third radiator 103 and the fourth radiator 104, acting as parasitic tuners, effectively improve the antenna efficiency of the first arm 1011 operating in the satellite communication frequency band after their resonant gain is adjusted by the first arm 1011. Combined with... Figure 13 As shown, the resonance of the first arm 1011 is at 2.2 GHz. Mark4 is the magnetic parasitic gain of the second arm 1012, Mark2 is the electrical parasitic gain of the fourth radiator 104, and Mark3 is the frequency point of the electrical parasitic gain of the second radiator 102, so that the first arm 1011 can achieve a gain of -1 dBic in left-hand circular polarization. Figure 14 As shown.

[0180] In some embodiments, the second housing 130 includes a second metal frame, and the third radiator 103 and the fourth radiator 104 are formed through the outer frame of the second metal frame. Thus, the second metal frame enhances the protective performance of the foldable electronic device 10. Furthermore, using the outer frame of the second metal frame to form the third radiator 103 and the fourth radiator 104 makes the structure of the foldable electronic device 10 more compact.

[0181] In some embodiments, the antenna device further includes a sixth tuning circuit (not labeled) that tunes in conjunction with the first radiator. When the antenna device is in satellite communication mode, the first radiator is in a fed state, and the sixth tuning circuit tunes to make the operating frequency band of the first radiator the satellite communication frequency band. This reduces the difficulty of antenna layout.

[0182] It should be noted that the tuning circuit in any of the above embodiments can be implemented in various ways, and its resonant frequency can be adjusted by changing the value of the inductor (L) or capacitor (C), including but not limited to series resonant circuits, parallel resonant circuits, tuning amplifiers, variable capacitor tuning circuits, etc.

[0183] The foldable electronic device 10 disclosed herein may include ranging devices, scanning devices, shooting devices, handheld devices, vehicle-mounted devices, wearable devices, monitoring devices, cellular phones, smartphones, personal digital assistant computers, tablet computers, laptop computers, camcorders, video recorders, cameras, vehicle-mounted computers, and other devices with display functions.

[0184] Reference Figure 15 As shown, in some embodiments, the foldable electronic device 10 further includes at least one or more of the following components: a processing component 11, a memory 12, a power supply component 13, a multimedia component 14, an audio component 15, an input / output interface 16, a sensor component 17, and a communication component 18.

[0185] The processing component typically controls the overall operation of the foldable electronic device, such as operations associated with display, telephone calls, data communication, camera operation, and recording. The processing component includes at least one or more processors to execute instructions to complete all or part of the steps of the methods described above. Furthermore, the processing component includes at least one or more modules to facilitate interaction between the processing component and other components. For example, the processing component may include at least a multimedia module to facilitate interaction between the multimedia component and the processing component.

[0186] The memory is configured to store various types of data to support the operation of foldable electronic devices. Examples of this data include instructions for any application or method operating on the foldable electronic device, contact data, phonebook data, messages, pictures, videos, etc. The memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory, erasable programmable read-only memory, programmable read-only memory, read-only memory, magnetic storage, flash memory, magnetic disk, or optical disk.

[0187] The control board includes processing components and memory.

[0188] The power supply unit provides power to the various components of the foldable electronic device. The power supply unit includes at least a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the foldable electronic device.

[0189] The multimedia component includes the display module of this disclosure, facilitating human-computer interaction. If the display module includes a touch panel, the display module can be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component includes a front-facing camera and / or a rear-facing camera. When the foldable electronic device is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera can receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0190] The audio component is configured to output and / or input audio signals. For example, the audio component includes a microphone (MIC) configured to receive external audio signals when the foldable electronic device is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory or transmitted via a communication component. In some embodiments, the audio component also includes a speaker for outputting audio signals.

[0191] The input / output interface provides an interface between the processing component and the peripheral interface module, which can be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.

[0192] The sensor assembly includes one or more sensors for providing state assessments of various aspects of the foldable electronic device. For example, the sensor assembly can detect the open / closed state of the foldable electronic device, the relative positioning of components such as the display and keypad of the foldable electronic device, changes in the position of the foldable electronic device or a component of the foldable electronic device, the presence or absence of user contact with the foldable electronic device, the orientation or acceleration / deceleration of the foldable electronic device, and temperature changes of the foldable electronic device. The sensor assembly includes at least a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly also includes at least a photosensitizing element, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly also includes at least an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0193] The communication component is configured to facilitate wired or wireless communication between the foldable electronic device and other devices. The foldable electronic device can access wireless networks based on communication standards, such as Wi-Fi, 2G, 3G, 4G, or 6G, or combinations thereof. In one exemplary embodiment, the communication component receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component also includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IRDA) technology, Ultra-Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0194] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0195] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0196] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0197] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is directly connected to the second feature via radio frequency bands, or that the first and second features are connected via radio frequency bands through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0198] It should be noted that when a component is described as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0199] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0200] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0201] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0202] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is directly connected to the second feature via radio frequency bands, or that the first and second features are connected via radio frequency bands through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0203] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. Furthermore, when a component is considered to be "fixed transmission connection" to another component, the two can be fixed in a detachable or non-detachable manner, as long as power transmission can be achieved. Methods such as socketing, snap-fitting, integral molding, and welding are feasible in conventional technologies and will not be elaborated upon here. When a component is perpendicular or approximately perpendicular to another component, it means that the ideal state is perpendicularity, but due to manufacturing and assembly factors, a certain degree of perpendicularity error may exist. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0204] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0205] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. An antenna device, characterized in that, include: The housing component includes a first housing, a second housing, and a connecting mechanism. The first housing is foldably connected to the second housing via the connecting mechanism, so that the housing component has an unfolded state and a folded state. The first housing includes a first antenna assembly, which includes a first radiator. The second housing includes a second antenna assembly. A feeding circuit, at least for feeding the first radiator; as well as When the antenna device is in satellite communication mode, the first radiator is in a fed state so that the operating frequency band of the first radiator is the satellite communication frequency band. The second antenna assembly is coupled and fed to the first radiator, and gains the first radiator.

2. The antenna device according to claim 1, characterized in that, The satellite communication frequency band is the Tiantong satellite frequency band.

3. The antenna device according to claim 1, characterized in that, The housing component is in an unfolded state so that the first antenna assembly and the second antenna assembly are arranged along a first direction.

4. The antenna device according to claim 3, characterized in that, When the antenna device is in satellite communication mode and the housing component is in unfolded mode, the second antenna assembly is coupled and fed to the first radiator to at least gain the radiation direction of the first radiator.

5. The antenna device according to claim 3, characterized in that, The second antenna assembly is coupled and fed to the first radiator, and serves as a perturbation unit to at least gain the radiation direction of the first radiator.

6. The antenna device according to claim 5, characterized in that, The antenna device further includes a first tuning circuit that is tuned in conjunction with the second antenna assembly; When the antenna device is in satellite communication mode, the second antenna assembly is coupled and fed to the first radiator, and the first tuning circuit tunes the second antenna assembly to form a perturbation unit and at least gains the radiation direction of the first radiator.

7. The antenna device according to claim 3, characterized in that, The housing component is in a folded state so that the first antenna assembly and the second antenna assembly are overlapped along a second direction, which is perpendicular to the first direction.

8. The antenna device according to claim 3, characterized in that, When the antenna device is in satellite communication mode and the housing component is in a folded state, the second antenna assembly is coupled and fed to the first radiator to at least increase the radiation efficiency of the first radiator.

9. The antenna device according to claim 8, characterized in that, The antenna device further includes a second tuning circuit that is tuned in conjunction with the second antenna assembly; When the antenna device is in satellite communication mode, the second antenna assembly is coupled and fed to the first radiator, and the second tuning circuit tunes the second antenna assembly to at least increase the radiation efficiency of the first radiator.

10. The antenna device according to any one of claims 1 to 9, characterized in that, The first antenna assembly includes a second radiator adjacent to the first radiator; When the antenna device is in satellite communication mode, and the operating frequency band of the first radiator is the satellite communication frequency band, the second radiator is coupled to the first radiator for power supply to increase the gain of the first radiator.

11. The antenna device according to claim 10, characterized in that, When the antenna device is in satellite communication mode and the operating frequency band of the first radiator is the satellite communication frequency band, the second radiator is coupled to the first radiator for power supply to increase the radiation efficiency of the first radiator.

12. The antenna device according to claim 11, characterized in that, The antenna device further includes a third tuning circuit that is tuned in conjunction with the second radiator; When the antenna device is in satellite communication mode and the operating frequency band of the first radiator is the satellite communication frequency band, the second radiator is coupled to the first radiator for power supply, and the third tuning circuit tunes the second radiator to at least increase the radiation efficiency of the first radiator.

13. The antenna device according to claim 12, characterized in that, When the antenna device is in satellite communication mode, the third tuning circuit tunes the second radiator so that the operating frequency band of the second radiator is a first radiation frequency band higher than the satellite communication frequency band.

14. The antenna device according to claim 13, characterized in that, The satellite communication frequency band includes a transmission frequency band and a reception frequency band, wherein the transmission frequency band is 1.98 GHz to 2 GHz and the reception frequency band is 2.17 GHz to 2.2 GHz; And / or, the first radiation frequency band is 2.3 GHz to 3.2 GHz.

15. The antenna device according to claim 12, characterized in that, The second radiator comprises two, which are spaced apart on both sides of the first radiator. The third tuning circuit comprises two, which are connected to the second radiator one by one.

16. The antenna device according to claim 15, characterized in that, The first radiator includes a first arm and a second arm. One end of the first arm is adjacent to one of the second radiators, the other end of the first arm is connected to one end of the second arm and grounded, and the other end of the second arm is adjacent to the other second radiator. When the antenna device is in satellite communication mode, one end of the first arm is connected to the power supply circuit so that the operating frequency band of the first arm is the satellite communication frequency band. The second radiator is coupled and fed to the first arm body, and the third tuning circuit tunes the second radiator to gain the first arm body. The second antenna assembly is coupled and fed to the first arm body, and serves as a perturbation unit to gain the first arm body.

17. The antenna device according to claim 16, characterized in that, When the antenna device is in satellite communication mode, one end of the first arm is connected to the feeding circuit to form an IFA antenna. And / or, the antenna device further includes a fourth tuning circuit connected to the second arm; when the antenna device is in satellite communication mode, the second arm and the first arm are magnetically parasiticly coupled, and the fourth tuning circuit tunes the second arm to gain the first arm.

18. The antenna device according to claim 17, characterized in that, When the antenna device is in satellite communication mode, the fourth tuning circuit tunes the second arm so that the operating frequency of the second arm is a second radiation frequency band lower than the satellite communication frequency band.

19. The antenna device according to claim 18, characterized in that, The satellite communication frequency band includes a transmission frequency band and a reception frequency band, wherein the transmission frequency band is 1.98 GHz to 2 GHz and the reception frequency band is 2.17 GHz to 2.2 GHz; And / or, the second radiation frequency band is 1.3 GHz to 1.9 GHz.

20. The antenna device according to claim 19, characterized in that, When the antenna device is in satellite communication mode, the third tuning circuit tunes the second radiator so that the operating frequency band of the second radiator is a first radiation frequency band higher than the satellite communication frequency band, the first radiation frequency band being 2.3 GHz to 3.2 GHz.

21. The antenna device according to claim 16, characterized in that, The length of the first radiator is 26mm to 40mm, the length of the first arm is 12mm to 25mm, and the length of the second radiator is 6mm to 20mm.

22. The antenna device according to claim 16, characterized in that, The length of the first radiator is 28 mm; the length of the first arm is 13 mm; one of the second radiators is 16 mm long; and the other of the second radiators is 19 mm long. When the antenna device is in satellite communication mode, the satellite communication frequency band is 1.98GHz to 2.2GHz, the operating frequency band of the second arm is 1.3GHz to 1.9GHz, and the operating frequency band of the second radiator is 2.3GHz to 3.2GHz.

23. The antenna device according to claim 10, characterized in that, When the housing component is in the unfolded state, one end of the first radiator is fed into the power supply circuit and positioned close to the second antenna assembly.

24. The antenna device according to claim 23, characterized in that, When the antenna device is in satellite communication mode, at least one of the second radiator and the second antenna assembly can operate in the GPS frequency band. And / or, the first housing includes a first metal frame, and the first radiator and the second radiator are formed through the outer frame of the first metal frame.

25. The antenna device according to any one of claims 10 to 24, characterized in that, The antenna device further includes a first switching circuit, and the power supply circuit includes a first sub-circuit and a second sub-circuit, the first sub-circuit and the second sub-circuit being respectively connected to the first switching circuit; When the antenna device is in satellite communication mode, the first switching circuit is in a first switching state, so that the second sub-circuit is in a disconnected state, and the first sub-circuit is fed to the first radiator. The second radiator and the second antenna assembly are respectively coupled to the first radiator to increase the gain of the first radiator. When the antenna device is in a non-satellite communication state, the first switching circuit is put into a second switching state, so that the first sub-circuit is in a disconnected state, and the second sub-circuit is fed in coordination with at least one of the first radiator, the second radiator and the second antenna assembly to generate a third radiation frequency band different from the satellite communication frequency band.

26. The antenna device according to any one of claims 10 to 25, characterized in that, The second antenna assembly includes a third radiator and a fourth radiator adjacent to the third radiator, wherein the length of the third radiator is the same as the length of the first radiator, and the length of the fourth radiator is the same as the length of the second radiator. When the antenna device is in satellite communication mode, at least one of the third radiator and the fourth radiator is coupled and fed to the first radiator to gain the first radiator.

27. The antenna device according to claim 26, characterized in that, The housing component is in an unfolded state, and the first radiator, the second radiator, the third radiator, and the fourth radiator are arranged along a first direction; When the antenna device is in satellite communication mode and the housing component is in unfolded mode, at least one of the third radiator and the fourth radiator is coupled and fed to the first radiator to at least gain the radiation direction of the first radiator.

28. The antenna device according to claim 26, characterized in that, When the housing component is in the folded state, the first radiator and the second radiator overlap along the second direction, and the second radiator and the fourth radiator overlap along the second direction; When the antenna device is in satellite communication mode and the housing component is in a folded state, at least one of the third radiator and the fourth radiator is coupled and fed to the first radiator to at least increase the radiation efficiency of the first radiator.

29. The antenna device according to claim 28, characterized in that, The antenna device also includes a fifth tuning circuit; One of the third and fourth radiators is coupled to the first radiator and connected to the fifth tuning circuit to at least increase the radiation efficiency of the first radiator.

30. The antenna device according to claim 28, characterized in that, When the antenna device is in satellite communication mode and the housing component is in the folded state, the fifth tuning circuit tunes at least one of the third radiator and the fourth radiator so that its operating frequency band is the fourth radiation frequency band, which is higher than the satellite communication frequency band.

31. The antenna device according to claim 30, characterized in that, The satellite communication frequency band includes a transmission frequency band and a reception frequency band, wherein the transmission frequency band is 1.98 GHz to 2 GHz and the reception frequency band is 2.17 GHz to 2.2 GHz; And / or, the fourth radiation frequency band is 2.3 GHz to 3.2 GHz; And / or, the fourth radiator includes two, which are spaced apart on both sides of the third radiator, and the fifth tuning circuit includes two, which are connected to the fourth radiator one by one.

32. The antenna device according to claim 26, characterized in that, The antenna device further includes a second switching circuit, and the power supply circuit includes a first sub-circuit and a third sub-circuit, the first sub-circuit and the third sub-circuit being respectively connected to the second switching circuit; When the antenna device is in satellite communication mode and the housing component is in the folded state, the second switching circuit is in the third switching state, so that the second sub-circuit is in the disconnected state, and the first sub-circuit is fed in conjunction with the first radiator. At least one of the third radiator and the fourth radiator is coupled to the first radiator to gain the first radiator. When the antenna device is in a non-satellite communication state, the second switching circuit is put into a fourth switching state, so that the first sub-circuit is in a disconnected state, and the second sub-circuit is fed in coordination with at least one of the first radiator, the second radiator, the second radiator and the fourth radiator to generate a fifth radiation frequency band different from the satellite communication frequency band.

33. The antenna device according to claim 26, characterized in that, The second housing includes a second metal frame, and the third and fourth radiators are formed through the outer frame of the second metal frame.

34. The antenna device according to claim 1, characterized in that, The power supply circuit includes an impedance matching circuit; when the antenna device is in satellite communication mode, the first radiator is in a power supply mode, and the impedance matching circuit makes the operating frequency band of the first radiator the satellite communication frequency band.

35. The antenna device according to claim 1, characterized in that, The antenna device further includes a sixth tuning circuit that is tuned in conjunction with the first radiator. When the antenna device is in satellite communication mode, the first radiator is in a power-fed state, and the sixth tuning circuit is tuned so that the operating frequency band of the first radiator is the satellite communication frequency band.

36. A foldable electronic device, characterized in that, Includes a circuit board, a flexible display screen, and the antenna device according to any one of claims 1 to 35; The circuit board is disposed on the housing component, and the power supply circuit and the third tuning circuit are disposed on the circuit board; The flexible display screen covers at least a portion of the first housing, the second housing, and the connecting mechanism.

37. The foldable electronic device according to claim 36, characterized in that, The foldable electronic device further includes a camera module disposed on the first housing and a first display screen disposed on the second housing. When the housing components are in a folded state, the camera module and the first display screen are spaced apart along a second direction. And / or, the circuit board is a control motherboard and is disposed in the first housing.

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