CN117638487A - Antenna device and foldable electronic device - Google Patents

Abstract

The invention discloses an antenna device and a foldable electronic device. The antenna device comprises a shell component and a first matching module; the shell part comprises a first metal shell, a second metal shell and a folding mechanism, wherein the first metal shell is connected with the second metal shell in a folding way through the folding mechanism, the first metal shell comprises a first middle frame body and a first metal frame, the first metal frame comprises a top, and the first metal frame is provided with a first radiator arranged at the top; the first matching module is electrically connected with the first radiator; when the first metal shell and the second metal shell are stacked, the second metal shell can shield electromagnetic radiation generated by the first radiator. The antenna device has good antenna layout, is applied to foldable electronic equipment, can ensure the communication performance of the foldable electronic equipment, and is favorable for the development of light weight and thinness.

Description

Antenna device and foldable electronic device

Technical Field

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

Background

Electronic devices such as mobile phones, tablet computers, communication watches and the like have become indispensable scientific and technological products in the life, study and entertainment processes of people. With the development of communication technology, more and more electronic devices form a frame antenna on a metal frame to perform communication, so that the internal space of the electronic device can be fully utilized.

In the related art, a foldable electronic device may be folded in half to be convenient to carry; and after being unfolded, the display area is larger, so that the display area is more and more favored by consumers. Foldable electronic devices typically require operation in certain frequency bands using LDS antennas to meet radiation shielding requirements. The thickness of the LDS antenna is large, which is not beneficial to the development of the light and thin foldable electronic device.

Disclosure of Invention

The present disclosure provides an antenna device and a foldable electronic device. The antenna device has good antenna layout, is applied to foldable electronic equipment, can ensure the communication performance of the foldable electronic equipment, and is favorable for the development of light weight and thinness.

The technical scheme is as follows:

according to a first aspect of embodiments of the present disclosure, there is provided an antenna device comprising a housing part and a first matching module; the shell part comprises a first metal shell, a second metal shell and a folding mechanism, wherein the first metal shell is connected with the second metal shell in a folding way through the folding mechanism, the first metal shell comprises a first middle frame body and a first metal frame, the first metal frame comprises a top, and the first metal frame is provided with a first radiator arranged at the top; the first matching module is electrically connected with the first radiator; when the first metal shell and the second metal shell are stacked, the second metal shell can shield electromagnetic radiation generated by the first radiator.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

when the antenna device is used, the first radiator is arranged at the top of the first metal frame, and the first matching module is utilized for feeding and switching, so that the first radiator can work in the working frequency band of the LDS antenna and can replace the LDS antenna. Meanwhile, electromagnetic radiation generated by the first radiator can be shielded by the second metal shell, and the radiation shielding performance of the antenna device is improved. Therefore, the antenna device is applied to the foldable electronic equipment, can ensure the communication performance of the foldable electronic equipment, does not need to be provided with an LDS antenna, and is favorable for the light and thin development of the foldable electronic equipment.

The technical scheme of the present disclosure is further described below:

in one embodiment, when the first metal shell and the second metal shell are stacked, the minimum distance between the first radiator and the second metal shell is L, and L is more than or equal to 0.1mm and less than or equal to 2mm.

In one embodiment, one end of the first radiator is provided with a first slot, and the other end of the first radiator is close to the folding mechanism; the first matching module comprises a first feed part, a second feed part and a first tuning unit, wherein the second feed part is arranged between the first slot and the first feed part, the first feed part is electrically connected with the first radiator so that the working frequency band of the first radiator is an ultrahigh frequency band, and the second feed part is electrically connected with the first radiator through the first tuning unit so that the working frequency band of the first radiator is a medium-high frequency band.

In one embodiment, the first metal bezel further includes a bottom portion disposed opposite the top portion; the first metal frame further comprises a second radiator and a second slot, wherein the second radiator is arranged at the bottom, the second radiator is arranged between the electric connector and the second slot, and the antenna device comprises a second matching module, and the second matching module is electrically connected with the second radiator, so that the working frequency range of the second radiator is a medium-high frequency range and an ultrahigh frequency range.

In one embodiment, the first metal frame further comprises a first side portion disposed between the top portion and the bottom portion, the first side portion being disposed opposite the folding mechanism; the first metal frame further comprises a third slot arranged at the bottom and a third radiator arranged between the bottom and the first side, the third slot is arranged between the electric connector and the third radiator, and the antenna device comprises a third matching module which is electrically connected with the third radiator, so that the working frequency band of the third radiator is an LMH frequency band.

In one embodiment, the first metal frame further includes a fourth radiator disposed on the first side, and the fourth radiator is disposed opposite to the third radiator through a third slot; the antenna device comprises a fourth matching module, and the fourth matching module is electrically connected with the fourth radiator so that the working frequency band of the fourth radiator is a WLAN frequency band.

In one embodiment, the first metal frame is provided with a holding area, and the fourth radiator is arranged outside the holding area.

In one embodiment, the first metal frame further includes a fifth radiator disposed on the first side portion and a fifth slot, and the fifth radiator is disposed between the fifth slot and the fourth radiator; the antenna device comprises a fifth matching module, and the fifth matching module is electrically connected with the fifth radiator so that the working frequency band of the fifth radiator is an LMH frequency band and an ultra-high frequency band.

In one embodiment, the first metal frame further comprises a first electrical connector disposed between the second radiator and the third radiator, the first electrical connector being electrically connected to the first middle frame body;

and/or, the first metal frame further comprises a second electric connector arranged between the fourth radiator and the fifth radiator, and the second electric connector is electrically connected with the first middle frame body.

In one embodiment, the mid-high frequency band is MH frequency band, and/or the ultra-high frequency band is any one or a combination of two or more of N77, N78, and N79.

In one embodiment, the first metal frame further includes a sixth radiator disposed on the top and a third electrical connector disposed between the first radiator and the sixth radiator, and the third electrical connector is electrically connected to the first middle frame body; the antenna device comprises a sixth matching module, and the sixth matching module is electrically connected with the sixth radiator, so that the working frequency band of the sixth radiator is a GPS L1 frequency band and a WLAN frequency band.

In one embodiment, the first metal frame further includes a seventh radiator disposed on the top and a sixth slot disposed between the seventh radiator and the sixth radiator, the sixth slot being disposed away from the folding mechanism; the antenna device comprises a seventh matching module, and the seventh matching module is electrically connected with the seventh radiator so that the working frequency band of the seventh radiator is a GPSL5 frequency band.

In one embodiment, the second metal casing includes a second middle frame body and a second metal frame, the second metal frame is provided with tuning bodies corresponding to the first radiators one by one, and the antenna device includes a tuning module, and the tuning bodies are electrically connected with the tuning module.

According to a second aspect of the embodiments of the present disclosure, there is further provided a foldable electronic device, including a circuit board and the antenna device in any of the above embodiments, where the circuit board is disposed on the housing assembly, and the circuit board is provided with a first matching module.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

the foldable electronic equipment is applied with the antenna device in any embodiment, and the first radiator is used for replacing the LDS antenna, so that the foldable electronic equipment is favorable for the light and thin development of the foldable electronic equipment and has good electromagnetic shielding performance.

The technical scheme of the present disclosure is further described below:

the circuit board is any one or the combination of more than two of the radio frequency circuit board and the control circuit board, is fixed on the first middle frame body and is arranged near the top;

and/or the circuit board is provided with an ultrahigh frequency antenna, and the ultrahigh frequency antenna is a microstrip antenna or a strip line antenna;

and/or the circuit board is provided with an NFC antenna;

and/or, the first metal frame further comprises a bottom arranged opposite to the top, and the antenna device further comprises an electric connector electrically connected with the circuit board, wherein a part of the electric connector is arranged at the bottom.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings illustrate schematically the embodiments of the present invention and their description to explain the technical solution of the present invention and do not constitute an undue limitation on the scope of the present invention.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural view of a foldable electronic device in an embodiment.

Fig. 2 is a schematic diagram of a matching module in an embodiment.

Fig. 3 is a schematic hardware structure of the foldable electronic device shown in fig. 1.

Reference numerals illustrate:

1. an electronic device; 11. a processing assembly; 12. a memory; 13. a power supply assembly; 14. a multimedia component; 15. an audio component; 16. an input/output interface; 17. a sensor assembly; 18. a communication component; 10. an antenna device; 100. a housing member; 110. a first metal housing; 111. a first middle frame body; 112. a first metal frame; 101. a top; 102. A bottom; 103. a first side portion; 104. a first electrical connector; 105. a second electrical connector; 106. a third electrical connector; 1121. a first radiator; 1122. a second radiator; 1123. a third radiator; 1124. a fourth radiator; 1125. A fifth radiator; 1126. a sixth radiator; 1127. a seventh radiator; 1001. a first slot; 1002. a second slot; 1003. a third slot; 1004. fourth slotting; 1005. fifth slotting; 1006. sixth slotting; 120. a second metal housing; 121. a second middle frame body; 122. a second metal bezel; 123. a tuning body; 130. a folding mechanism; 200. a first matching module; 210. a first power feeding section; 220. a second power feeding section; 230. a first tuning unit; 300. A second matching module; 400. a third matching module; 500. a fourth matching module; 600. a fifth matching module; 700. A sixth matching module; 800. a seventh matching module; 900. a tuning module; 20. a circuit board; 21. an ultra-high frequency antenna; 30. an NFC antenna; 40. an electrical connector; 51. a power feeding section; 52. an input unit; 53. a loss adjustment device; 54. an impedance matching circuit; 55. a switching circuit; 56. a first tuning circuit; 57. a second tuning circuit.

Detailed Description

For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the drawings and specific language will be used to describe the same. It should be understood that the detailed description is presented herein only to illustrate the present disclosure and not to limit the scope of the disclosure.

Unless defined otherwise, 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 disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

Electronic devices such as mobile phones and tablet computers are indispensable scientific and technological products in the life, study and entertainment processes of people, and bring convenience and fun to the life of people. Along with the development of diversification of electronic equipment functions, electronic equipment is various in variety and brands are various, so that consumers can select a plurality of electronic equipment, the requirements of people on the electronic equipment cannot be met only by improving the functional characteristics of the electronic equipment, and the aesthetic property of the shell structure of the electronic equipment is also an important factor for influencing the competitiveness of electronic products. Among electronic devices having similar functions or performances, the more beautiful the appearance of the electronic device is, the more attractive consumers can be attracted to purchase.

While flexible display screens are becoming more and more popular for use on electronic devices. The foldable electronic equipment using the flexible display screen can be folded in half so as to be convenient to carry; the flexible display screen has a larger display area after being unfolded, and is further favored by consumers.

However, in the related art, the structure of the foldable electronic device is more and more compact, the internal structure is more and more compact, the radiation performance of the frame antenna is easily affected by other metal devices, and the arrangement space is limited, which increases the difficulty of the structural arrangement of the electronic device. For example, the foldable electronic device can make full use of the internal space of the foldable electronic device by forming a frame antenna with a metal frame to perform communication. However, in the foldable electronic device, the frame antenna is easily affected by the adjacent metal casing in the folded state, and the antenna performance is inevitably lost, so that part of frequency bands need to be realized by using the LDS antenna. The LDS antenna has larger thickness, which is unfavorable for the development of the light and thin foldable electronic equipment.

Based on this, the present disclosure provides an antenna device capable of having a good antenna layout without providing an LDS antenna. The communication performance of the foldable electronic equipment can be ensured when the electronic equipment is applied to the foldable electronic equipment, and the development of light weight and thinness is facilitated.

For a better understanding of the antenna device of the present disclosure, a description will be made below in connection with a foldable electronic device to which the antenna device is applied.

As shown in fig. 1, in some embodiments of the present disclosure, a foldable electronic device 1 is provided, comprising a circuit board 20 and an antenna arrangement 10.

Wherein the antenna device 10 comprises a housing part 100 and a first matching module 200; the housing component 100 comprises a first metal housing 110, a second metal housing 120 and a folding mechanism 130, wherein the first metal housing 110 is in foldable connection with the second metal housing 120 through the folding mechanism 130, the first metal housing 110 comprises a first middle frame body 111 and a first metal frame 112, the first metal frame 112 comprises a top 101, and the first metal frame 112 is provided with a first radiator 1121 arranged on the top 101; the first matching module 200 is electrically connected to the first radiator 1121; when the first metal case 110 and the second metal case 120 are stacked, the second metal case 120 can shield electromagnetic radiation generated by the first radiator 1121. The circuit board 20 is disposed on the housing assembly, and the circuit board 20 is provided with a first matching module 200.

When the foldable electronic device 1 is used, the first radiator 1121 is disposed at the top 101 of the first metal frame 112, and the first matching module 200 is used for feeding and switching, so that the first radiator 1121 can work in the working frequency band of the LDS antenna, and can replace the LDS antenna. Meanwhile, electromagnetic radiation generated by the first radiator 1121 can be shielded by the second metal case 120, and radiation shielding performance of the antenna device 10 can be improved. In this way, the foldable electronic device 1 can ensure communication performance and has good electromagnetic shielding performance, and an LDS antenna is not required to be arranged, which is beneficial to the development of light and thin foldable electronic device 1.

In addition, the shielding effect of the second metal housing 120 is fully utilized to reduce the influence of the electromagnetic radiation generated by the first radiator 1121 on the user. In this process, the second metal housing 120 may also be indirectly used as the reflecting surface of the first radiator 1121, so that adverse effects on the first radiator 1121 may be further reduced.

It should be noted that, the foldable electronic device 1 in any of the above embodiments includes, but is not actually a foldable display device, a foldable smart phone, a foldable tablet computer, and the like.

It should be noted that "top 101" is generally considered to be a frame above which a person uses the foldable electronic device 1 upright. Typically, an earphone sound outlet and/or a front camera are provided.

On the basis of any of the above embodiments, as shown in fig. 1, in some embodiments, the circuit board 20 is provided with an ultrahigh frequency antenna 21, and the ultrahigh frequency antenna 21 is a microstrip antenna or a strip line antenna. In this way, the thickness space of the circuit board 20 can be fully utilized to set the ultrahigh frequency antenna 21, the requirement of the ultrahigh frequency antenna 21 on the antenna environment is relatively loose, the thickness of the microstrip antenna or the strip line antenna is thin, the occupied space of the whole machine is small, and the ultrahigh frequency antenna 21 is convenient to integrate into the circuit board 20.

The operating band of the uhf antenna 21 is greater than 3000MHz. Optionally, the ultra-high frequency antenna 21 is 3300MHz to 4900MHz.

On the basis of any of the above embodiments, as shown in fig. 1, in some embodiments, the circuit board 20 is provided with an NFC antenna 30. In this way, the NFC antenna 30 is implemented by using a coil, which has relatively loose requirements on the antenna environment and a small thickness, and can be directly or indirectly disposed on the circuit board 20.

On the basis of any of the foregoing embodiments, in some embodiments, the first metal frame 112 further includes a bottom 102 disposed opposite to the top 101, and the antenna device 10 further includes an electrical connector 40 electrically connected to the circuit board 20, where a portion of the electrical connector 40 is disposed on the bottom 102. In this manner, interaction with external devices is facilitated through the electrical connector 40.

It should be noted that "bottom 102" is generally considered to be a frame under which a person uses the foldable electronic device 1 standing upright. A pick-up hole for a microphone and/or a fingerprint recognition module etc. are typically provided.

In some embodiments, when the first metal case 110 and the second metal case 120 are stacked, the minimum distance between the first radiator 1121 and the second metal case 120 is L, and L is 0.1mm and L is 2mm. In this way, the shielding effect of the second metal case 120 can be ensured.

Alternatively, l=0.1 mm, 0.2mm, 0.3mm, 0.34mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm.

In some embodiments, the thickness of the first metal shell 110 and the second metal shell 120 is 4mm to 7mm, and the thickness of the metal frame is 2mm to 4mm. In this way, after the first metal casing 110 and the second metal casing 120 are folded, electromagnetic radiation of the first radiator 1121 can be effectively shielded by the second metal casing 120.

Optionally, the thickness of the first metal shell 110 and the second metal shell 120 is 5.4mm, and the thickness of the metal frame is 2mm.

It will be appreciated that in a head SAR scenario (closed scenario where the ear is close to the phone), the first radiator 1121 is spaced from the body by a second metal housing 120 that shields the first radiator 1121 from electromagnetic radiation to meet the design requirements.

On the basis of any one of the above embodiments, in some embodiments, one end of the first radiator 1121 is provided with a first slot 1001, and the other end of the first radiator 1121 is close to the folding mechanism 130; the first matching module 200 includes a first feeding portion 210, a second feeding portion 220 disposed between the first slot 1001 and the first feeding portion 210, and a first tuning unit 230, where the first feeding portion 210 is electrically connected to the first radiator 1121 so that an operating frequency band of the first radiator 1121 is an ultra-high frequency band, and the second feeding portion 220 is electrically connected to the first radiator 1121 through the first tuning unit 230 so that the operating frequency band of the first radiator 1121 is a medium-high frequency band. Thus, the first radiator 1121 can be used for working in the mid-high band and the ultra-high band, and the effective radiation length is set in the first metal frame 112, which saves a lot of space and provides more antenna layout. Moreover, the antenna can be used as a main antenna to be placed on the top 101 of the whole machine, so that the user is prevented from holding the antenna.

In addition, by providing the first feeding portion 210, the second feeding portion 220 disposed between the first slot 1001 and the first feeding portion 210, and the first tuning unit 230, at least two different operating frequency bands can be switched by using the first radiator 1121, which is further beneficial to reducing the difficulty of arranging the antenna of the foldable electronic device 1.

In some embodiments, the circuit board 20 is any one or a combination of two or more of the radio frequency circuit board 20 and the control circuit board 20, and is fixed on the first middle frame body 111 and disposed near the top 101. In this way, any one or more than two of the radio frequency circuit board 20 and the control circuit board 20 are combined and arranged near the top 101, and after being electrically connected with the first radiator 1121, the loss of the first radiator 1121 is reduced, and the radiation performance of the first radiator 1121 is improved. It is particularly advantageous to improve the radiation performance of the first radiator 1121 operating in the mid-high frequency band and the ultra-high frequency band.

Based on any of the above embodiments, as shown in fig. 1, in some embodiments, the first metal frame 112 further includes a bottom 102 disposed opposite to the top 101; the first metal frame 112 further includes a second radiator 1122 and a second slot 1002 disposed at the bottom 102, the second radiator 1122 is disposed between the electrical connector 40 and the second slot 1002, and the antenna device 10 includes a second matching module 300, where the second matching module 300 is electrically connected to the second radiator 1122, so that an operating frequency band of the second radiator 1122 is a middle-high frequency band and an ultra-high frequency band. Thus, the second radiator 1122 can work in the mid-high frequency band and the ultra-high frequency band, and has a short effective radiation length, and is disposed at the bottom 102 of the first metal frame 112, so that a large amount of space can be saved, and more antenna layouts can be provided.

On the basis of any one of the embodiments of the second radiator 1122, as shown in fig. 1, in some embodiments, the first metal frame 112 further includes a first side 103 disposed between the top 101 and the bottom 102, where the first side 103 is disposed opposite to the folding mechanism 130; the first metal frame 112 further includes a third slot 1003 disposed on the bottom 102 and a third radiator 1123 disposed between the bottom 102 and the first side 103, the third slot 1003 is disposed between the electrical connector 40 and the third radiator 1123, and the antenna device 10 includes a third matching module 400, where the third matching module 400 is electrically connected to the third radiator 1123, so that an operating frequency band of the third radiator 1123 is an LMH frequency band. Thus, the LMH band is designed on the first side 103, so that the maximum antenna size can be given, and the low-frequency performance can be ensured. The first radiator 1121, the second radiator 1122 and the third radiator 1123 are arranged at intervals, and the antenna isolation is good. The common Slot head-on layout with the LMHB antenna can be avoided, and the high-order mode is generated to fall into the band, so that the antenna efficiency of the foldable electronic device 1 is affected.

On the basis of any one of the embodiments of the third radiator 1123, as shown in fig. 1, in some embodiments, the first metal frame 112 further includes a fourth radiator 1124 disposed on the first side 103, where the fourth radiator 1124 is disposed opposite to the third radiator 1123 through the third slot 1003; the antenna device 10 includes a fourth matching module 500, where the fourth matching module 500 is electrically connected to the fourth radiator 1124, so that the operating frequency band of the fourth radiator 1124 is a WLAN frequency band. In this way, the fourth radiator 1124 and the third radiator 1123 are placed opposite to each other, so that the WIFI antenna and the LMHB antenna can avoid the same-frequency isolation difference, and the WIFI communication performance and the low-frequency communication performance of the foldable electronic device 1 are effectively ensured.

Optionally, the fourth radiator is a low frequency WIFI antenna.

Further, in some embodiments, the first metal frame 112 is provided with a holding area, and the fourth radiator 1124 is disposed outside the holding area. So, the fourth radiator 1124 avoids the user to hold the influence, guarantees the WIFI communication performance of collapsible electronic equipment 1, when being favorable to the user to cross screen and erects the screen use, all has good WIFI communication performance, and user experience is good.

Optionally, in combination with the above-mentioned arrangement position of the circuit board 20, the fourth radiator 1124 is disposed at the waist of the whole machine and is disposed close to the circuit board 20, so as to further reduce loss and improve radiation performance of the antenna.

On the basis of any one of the embodiments of the fourth radiator 1124, as shown in fig. 1, in some embodiments, the first metal frame 112 further includes a fifth radiator 1125 disposed on the first side 103 and a fifth slot 1005, and the fifth radiator 1125 is disposed between the fifth slot 1005 and the fourth radiator 1124; the antenna device 10 includes a fifth matching module 600, where the fifth matching module 600 is electrically connected to the fifth radiator 1125, so that the operating frequency band of the fifth radiator 1125 is an LMH frequency band and an uhf frequency band.

On the basis of any of the above embodiments, as shown in fig. 1, in some embodiments, the first metal frame 112 further includes a first electrical connector 104 disposed between the second radiator 1122 and the third radiator 1123, and the first electrical connector 104 is electrically connected to the first middle frame body 111. And the third electrical connector 106 is electrically connected to the first middle frame body 111, so as to form two radiators, and can shield the second radiator 1122 and the third radiator 1123 from adverse effects of other devices (such as the electrical connector 40).

On the basis of any of the above embodiments, as shown in fig. 1, in some embodiments, the first metal frame 112 further includes a second electrical connector 105 disposed between the fourth radiator 1124 and the fifth radiator 1125, and the second electrical connector 105 is electrically connected to the first middle frame body 111. And the second electrical connector 105 is electrically connected with the first middle frame body 111, so that two radiators can be conveniently formed, and adverse effects of other devices on the fourth radiator 1124 and the fifth radiator 1125 can be shielded.

Based on any of the above embodiments, in some embodiments, the middle-high frequency band is an MH frequency band; and/or the ultrahigh frequency band is any one or the combination of more than two of N77, N78 and N79. In this way, through the fusion design, the corresponding radiator can have any one or more than two of the MH frequency band, N77, N78 and N79, so as to realize the mobile communication capability of more than 3G of the foldable electronic device 1. Moreover, by adopting the design, a large amount of space can be saved for the mobile phone terminal, and more antenna layouts can be provided

The LMH frequency band is 700MHz-960MHz, including 2G frequency band. The MHB frequency band is 1700 MHz-2700 MHz, and comprises 3G and 4G frequency bands. In addition, the 5G frequency band of China mobile is 4800 MHz-4900 MHz, which is 100MHz altogether, and the frequency band number is N79. The 5G frequency band of China telecom is 3400 MHz-3500 MHz and 100MHz total, and the frequency band number is N78. The 5G frequency band of China Unicom is 3500 MHz-3600 MHz and 100MHz altogether, and the frequency band number is N77.

On the basis of any of the above embodiments, as shown in fig. 1, in some embodiments, the first metal frame 112 further includes a sixth radiator 1126 disposed on the top 101 and a third electrical connector 106 disposed between the first radiator 1121 and the sixth radiator 1126, where the third electrical connector 106 is electrically connected to the first middle frame body 111; the antenna device 10 includes a sixth matching module 700, where the sixth matching module 700 is electrically connected to the sixth radiator 1126, so that the operating frequency band of the sixth radiator 1126 is the GPS L1 frequency band and the WLAN frequency band. In this way, the sixth radiator 1126 is utilized to easily form the GPS L1 antenna and the high-frequency WIFI antenna with good isolation, so that the foldable electronic device 1 has good positioning performance and WIFI communication performance, and good user experience. And the third electrical connector 106 is electrically connected with the first middle frame body 111, so as to form two radiators, and can shield the adverse effects of other devices on the first radiator 1121 and the sixth radiator 1126.

In addition, in combination with the aforementioned embodiment of the fourth radiator 1124, the WIFI antenna is disposed on the same side of the complete machine as the top 101 and the side 103. And the two antennas are closest to the radio frequency module positioned on the left side of the main board to the greatest extent, so that loss is reduced.

Based on any of the above embodiments, as shown in fig. 1, in some embodiments, the first metal frame 112 further includes a seventh radiator 1127 disposed on the top 101 and a sixth open slot 1006 disposed between the seventh radiator 1127 and the sixth radiator 1126, where the sixth open slot 1006 is disposed away from the folding mechanism 130; the antenna device 10 includes a seventh matching module 800, where the seventh matching module 800 is electrically connected to the seventh radiator 1127, so that the operating frequency band of the seventh radiator 1127 is the GPS L5 frequency band.

Based on any of the foregoing embodiments, in some embodiments, the second metal housing 120 includes a second middle frame body 121 and a second metal frame 122, the second metal frame 122 is provided with tuning bodies 123 disposed on the first radiator 1121 in a one-to-one correspondence, and the antenna device 10 includes a tuning module 900, where the tuning bodies 123 are electrically connected to the tuning module 900. In this way, the antenna of the foldable electronic device 1 is designed on the first metal casing 110, and the tuning body 123 of the second metal casing 120 is matched with the tuning module 900, so that the antenna performance of the first radiator 1121 can be enhanced.

Similarly, after the second metal frame 122 is laminated with the first metal frame 112, the second metal frame 122 may be provided with a tuning body 123 and a tuning module 900 electrically connected to the tuning body 123 at a position corresponding to at least one of the second radiator 1122, the third radiator 1123, the fourth radiator 1124, the fifth radiator 1125, the sixth radiator 1126, and the seventh radiator 1127, and may be provided with antenna performances corresponding to the second radiator 1122, the third radiator 1123, the fourth radiator 1124, the fifth radiator 1125, the sixth radiator 1126, and the seventh radiator 1127, respectively.

It should be noted that, the specific implementation manners of the first matching module 200, the second matching module 300, the third matching module 400, the fourth matching module 500, the fifth matching module 600, the sixth matching module 700, and the seventh matching module 800 may be various, and any matching circuit that meets the use requirement may be adopted. For example, CN112928445a discloses a matching circuit implementation.

Further, the fourth matching module 500 and the seventh matching module 800 may be implemented using a feed unit, and in some embodiments, the tuning process may not be performed using a matching circuit.

In addition, when the first matching module 200, the second matching module 300, the third matching module 400, the fourth matching module 500, the fifth matching module 600, the sixth matching module 700, and the seventh matching module 800 need to implement different frequency band switching. The matching module shown in fig. 2 may also be implemented, and includes a feeding portion 51, an input portion 52, a loss adjustment device 53, an impedance matching circuit 54, a switching circuit 55, a first tuning circuit 56, and a second tuning circuit 57, where the input portion 52 is electrically connected to the radiator, and the loss adjustment device 53 is electrically connected between the feeding portion 51 and the input portion 52 after being connected in series with the impedance matching circuit 54. One end of the first tuning circuit 56 is electrically connected between the impedance matching circuit 54 and the loss adjustment device 53 through the switching circuit 55, and the other end is grounded. One end of the second tuning circuit 57 is electrically connected between the impedance matching circuit 54 and the loss adjustment device 53 through the switching circuit 55, and the other end is grounded. When the first tuning circuit 56 is connected to the feeding section 51 through the switching circuit 55 and the second tuning circuit 57 is disconnected, the radiator has a first operating frequency band. When the second tuning circuit 57 is connected to the feeding section 51 through the switching circuit 55 and the first tuning circuit 56 is disconnected, the radiator has a second operating frequency band different from the first operating frequency band.

In this way, the input unit 52 is electrically connected to the radiator, and the loss adjustment device 53 is connected in series with the impedance matching circuit 54, thereby electrically connecting the power feeding unit 51 and the input unit 52. One end of the first tuning circuit 56 is electrically connected between the impedance matching circuit 54 and the loss adjustment device 53 through the switching circuit 55, and the other end is grounded. One end of the second tuning circuit 57 is electrically connected between the impedance matching circuit 54 and the loss adjustment device 53 through the switching circuit 55, and the other end is grounded. Further, after the initial impedance matching and return loss adjustment of the radiator are achieved, the radiator can be operated in the first operating frequency band when the first tuning circuit 56 is connected to the feeding portion 51 through the switching circuit 55 and the second tuning circuit 57 is disconnected. And when the second tuning circuit 57 is connected to the feeding section 51 through the switching circuit 55 and the first tuning circuit 56 is turned off, the radiator can operate in a second operating frequency band different from the first operating frequency band. The switching circuit 55 is utilized to flexibly switch, so that the radiator has at least two different working frequency bands, which is beneficial to reducing the number of antennas of the electronic equipment 1 and reducing the arrangement difficulty of internal electronic devices of the electronic equipment 1.

The specific implementation of the impedance matching circuit 54 may be various, for example, implemented by a capacitor unit, or implemented by a filter unit composed of a capacitor and an inductor, and the impedance adjustment of the radiator may be implemented, which is not limited herein.

The specific implementation of the loss adjustment device 53 may be various, for example, implemented by a capacitive unit, or implemented by a capacitor and an inductor, and the return loss adjustment of the radiator may be implemented, which is not limited herein.

It should be noted that, in the first operating frequency band lower than the second operating frequency band, the switching requirements of the foregoing respective matching modules may be combined to select. For example, when the above structure is applied to the first matching module 200, the radiator is the first radiator 1121, the first operating frequency band is the MH frequency band, and the second operating frequency band is any one or a combination of two or more of N77, N78, and N79.

Referring to fig. 3, in some embodiments, the electronic device 1 may further include 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.

The processing component generally controls overall operation of the electronic device, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component may include one or more processors to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component may include one or more modules that facilitate interactions between the processing component and other components. For example, the processing component may include a multimedia module to facilitate interaction between the multimedia component and the processing component.

The memory is configured to store various types of data to support operations at the electronic device. Examples of such data include instructions of any application or method configured to operate on the electronic device, contact data, phonebook data, messages, pictures, video, and the like. The memory may be implemented by any type of volatile or nonvolatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The control main board comprises a processing component and a memory.

The power supply assembly provides power to the various components of the electronic device. Power components may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for electronic devices.

The multimedia component comprises the display module disclosed by the disclosure, and human-computer interaction is facilitated. If the display module includes a touch panel, the display module may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia assembly includes a front camera and/or a rear camera. When the electronic device is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component is configured to output and/or input an audio signal. For example, the audio component includes a Microphone (MIC) configured to receive external audio signals when the electronic device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in a memory or transmitted via a communication component. In some embodiments, the audio assembly further comprises a speaker configured to output an audio signal.

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

The sensor assembly includes one or more sensors configured to provide status assessment of various aspects of the electronic device. For example, the sensor assembly may detect an on/off state of the electronic device, a relative positioning of the assemblies, such as a display and keypad of the electronic device, a change in position of the electronic device or one of the assemblies of the electronic device, the presence or absence of user contact with the electronic device, an orientation or acceleration/deceleration of the electronic device, and a change in temperature of the electronic device. The sensor assembly may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly may also include a photosensitive element, such as a CMOS or CCD image sensor, configured for use in imaging applications. In some embodiments, the sensor assembly may further include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component is configured to facilitate communication between the electronic device and other devices in a wired or wireless manner. The electronic device may access a wireless network based on a communication standard, such as WiFi,2G, 3G, 4G, 6G, or the like, or a combination thereof. In one exemplary embodiment, the communication component receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component further includes a Near Field Communication (NFC) module to facilitate short range communications. 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.

In the description of the present 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", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present disclosure.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first," "second," etc. can include at least one such feature, either explicitly or implicitly. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.

In the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In this disclosure, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "mounted," "positioned," "secured" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples merely represent several embodiments of the present disclosure, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that variations and modifications can be made by those skilled in the art without departing from the inventive concepts of the present disclosure, which are within the scope of the present disclosure.

Claims (15)

1. An antenna device, comprising:

the shell part comprises a first metal shell, a second metal shell and a folding mechanism, wherein the first metal shell is in folding connection with the second metal shell through the folding mechanism, the first metal shell comprises a first middle frame body and a first metal frame, the first metal frame comprises a top, and the first metal frame is provided with a first radiator arranged at the top; and

The first matching module is electrically connected with the first radiator;

when the first metal shell and the second metal shell are stacked, the second metal shell can shield electromagnetic radiation generated by the first radiator.

2. The antenna device according to claim 1, wherein when the first metal case and the second metal case are stacked, a minimum distance between the first radiator and the second metal case is L,0.1mm is equal to or less than L is equal to or less than 2mm.

3. The antenna device according to claim 1, wherein one end of the first radiator is provided with a first slot, and the other end of the first radiator is close to the folding mechanism; the first matching module comprises a first feed part, a second feed part and a first tuning unit, wherein the second feed part is arranged between the first slot and the first feed part, the first feed part is electrically connected with the first radiator so that the working frequency band of the first radiator is an ultrahigh frequency band, and the second feed part is electrically connected with the first radiator through the first tuning unit so that the working frequency band of the first radiator is a medium-high frequency band.

4. The antenna assembly of claim 1 wherein the first metal bezel further comprises a bottom portion disposed opposite the top portion; the first metal frame is further provided with a second radiator and a second slot, the second radiator is arranged between the electric connector and the second slot, the antenna device comprises a second matching module, and the second matching module is electrically connected with the second radiator, so that the working frequency range of the second radiator is a medium-high frequency range and an ultrahigh frequency range.

5. The antenna assembly of claim 4 wherein the first metal bezel further comprises a first side disposed between the top and bottom portions, the first side disposed opposite the folding mechanism; the first metal frame further comprises a third slot arranged at the bottom and a third radiator arranged between the bottom and the first side, the third slot is arranged between the electric connector and the third radiator, and the antenna device comprises a third matching module which is electrically connected with the third radiator, so that the working frequency band of the third radiator is an LMH frequency band.

6. The antenna device of claim 5, wherein the first metal bezel further comprises a fourth radiator disposed on the first side, the fourth radiator disposed opposite the third radiator through the third slot; the antenna device comprises a fourth matching module, and the fourth matching module is electrically connected with the fourth radiator so that the working frequency band of the fourth radiator is a WLAN frequency band.

7. The antenna device of claim 6, wherein the first metal bezel is provided with a grip region, and the fourth radiator is disposed outside the grip region.

8. The antenna device of claim 6, wherein the first metal bezel further comprises a fifth radiator disposed on the first side and a fifth slot, the fifth radiator disposed between the fifth slot and the fourth radiator; the antenna device comprises a fifth matching module, and the fifth matching module is electrically connected with the fifth radiator, so that the working frequency band of the fifth radiator is an LMH frequency band and an ultra-high frequency band.

9. The antenna assembly of claim 7 wherein the first metal bezel further comprises a first electrical connector disposed between the second radiator and the third radiator, the first electrical connector being electrically connected to the first middle frame body;

And/or, the first metal frame further comprises a second electric connector arranged between the fourth radiator and the fifth radiator, and the second electric connector is electrically connected with the first middle frame body.

10. The antenna device according to any one of claims 3 to 9, wherein the mid-high frequency band is an MH frequency band, and/or the ultra-high frequency band is any one or a combination of two or more of N77, N78, and N79.

11. The antenna device according to any one of claims 1 to 10, wherein the first metal bezel further includes a sixth radiator disposed at the top portion and a third electrical connector disposed between the first radiator and the sixth radiator, the third electrical connector being electrically connected to the first middle frame body; the antenna device comprises a sixth matching module, and the sixth matching module is electrically connected with the sixth radiator, so that the working frequency band of the sixth radiator is a GPS L1 frequency band and a WLAN frequency band.

12. The antenna assembly of claim 11 wherein the first metal bezel further comprises a seventh radiator disposed on the top and a sixth slot disposed between the seventh radiator and the sixth radiator, the sixth slot being disposed away from the folding mechanism; the antenna device comprises a seventh matching module, and the seventh matching module is electrically connected with the seventh radiator, so that the working frequency band of the seventh radiator is a GPS L5 frequency band.

13. The antenna device according to any one of claims 1 to 12, wherein the second metal housing includes a second middle frame body and a second metal frame, and the second metal frame is provided with tuning bodies that are disposed in one-to-one correspondence with the first radiator; the antenna device comprises a tuning module, and the tuning body is electrically connected with the tuning module.

14. A foldable electronic device comprising a circuit board and the antenna arrangement according to any of claims 1 to 13, the circuit board being arranged in the housing assembly, the circuit board being provided with the first matching module.

15. The foldable electronic device of claim 14, wherein the circuit board is any one or a combination of two or more of a radio frequency circuit board and a control circuit board, and is fixed on the first middle frame body and disposed near the top;

and/or the circuit board is provided with an ultrahigh frequency antenna, and the ultrahigh frequency antenna is a microstrip antenna or a strip line antenna;

and/or, the circuit board is provided with an NFC antenna;

and/or, the first metal frame further comprises a bottom arranged opposite to the top, the antenna device further comprises an electric connector electrically connected with the circuit board, and a part of the electric connector is arranged at the bottom.