CN112909541B - Antenna device and electronic equipment - Google Patents
Antenna device and electronic equipment Download PDFInfo
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- CN112909541B CN112909541B CN202110035941.9A CN202110035941A CN112909541B CN 112909541 B CN112909541 B CN 112909541B CN 202110035941 A CN202110035941 A CN 202110035941A CN 112909541 B CN112909541 B CN 112909541B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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Abstract
The embodiment of the application provides an antenna device and electronic equipment, the antenna device includes: a first antenna having a first clear space; a second antenna having a second clear space; the composite grounding structure is connected with the first antenna and the second antenna and comprises a first grounding structure and a second grounding structure connected with the first grounding structure; the first conductor structure is electrically connected with the first grounding structure and the second grounding structure respectively, and is close to the first clearance area; the second conductor structure is electrically connected with the first grounding structure and the second grounding structure respectively, and is close to the second clearance area; the first conductor structure and the second conductor structure are used for reducing the coupling degree between the first antenna and the second antenna. The antenna device can reduce the coupling degree between the first antenna and the second antenna, thereby improving the radiation efficiency of the first antenna and the second antenna.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to an antenna device and an electronic device.
Background
In the fifth generation mobile communication system (5G), FR1 (Frequency Range 1, 450 to 6000 MHz) and FR2 (Frequency Range 2, 24.25 to 52.6 GHz) are divided according to the Frequency band of 3 GPP. The NR (New Radio) frequency band of 5G includes, for example, N78 (3.3 to 3.8 GHz) and N79 (4.4 to 5.0 GHz) frequency bands. To meet the transmission speed requirement of 5G, it is generally implemented by Multi-antenna MIMO (multiple-Input multiple-output) technology.
In order to meet the performance of MIMO, at least 2x2MIMO is generally required for the low frequency band (698 to 960 MHz), while 4x4 MIMO is required for the medium and high frequency band (1710 to 5000 MHz). In addition, there is an LTE (Long Term Evolution ) band in addition to the 5G band.
Therefore, in electronic devices such as smartphones, more and more antennas need to be designed in a narrow layout space, which causes coupling between adjacent antennas to deteriorate antenna efficiency.
Disclosure of Invention
The embodiment of the application provides an antenna device and electronic equipment, which can reduce the coupling degree between two antennas and improve the radiation efficiency of the antennas.
An embodiment of the present application provides an antenna apparatus, including:
a first antenna having a first clear space;
a second antenna having a second clear space;
the composite grounding structure is connected with the first antenna and the second antenna and comprises a first grounding structure and a second grounding structure connected with the first grounding structure;
the first conductor structure is electrically connected with the first grounding structure and the second grounding structure respectively, and the first conductor structure is close to the first clearance area;
a second conductor structure electrically connected to the first and second ground structures, respectively, the second conductor structure being proximate to the second clearance area;
the first conductor structure and the second conductor structure are used for reducing the coupling degree between the first antenna and the second antenna.
The embodiment of the application also provides electronic equipment, which comprises the antenna device.
In the antenna device provided by the embodiment of the application, the first conductor structure and the second conductor structure are arranged, the first conductor structure is close to the clearance area of the first antenna, the second conductor structure is close to the clearance area of the second antenna, and the coupling degree between the first antenna and the second antenna can be reduced, so that the radiation efficiency of the first antenna and the radiation efficiency of the second antenna are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a first principle of an antenna apparatus according to an embodiment of the present application.
Fig. 2 is a first front view of an antenna device according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a first conductor structure of an antenna device according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a second conductor structure of the antenna device according to the embodiment of the present application.
Fig. 5 is a schematic diagram of a second principle of the antenna device according to the embodiment of the present application.
Fig. 6 is a schematic diagram of a third principle of the antenna device according to the embodiment of the present application.
Fig. 7 is a schematic three-dimensional structure of an antenna device according to an embodiment of the present application.
Fig. 8 is a partially enlarged schematic view of the area a of the antenna device shown in fig. 7.
Fig. 9 is a schematic diagram of a second perspective structure of an antenna device according to an embodiment of the present application.
Fig. 10 is a partially enlarged schematic view of the area B of the antenna device shown in fig. 9.
Fig. 11 is a cross-sectional view of the antenna device shown in fig. 2 along the direction P1-P2.
Fig. 12 is a second front view of an antenna device according to an embodiment of the present application.
Fig. 13 is a schematic diagram of a fourth principle of the antenna device according to the embodiment of the present application.
Fig. 14 is a schematic diagram of a fifth principle of the antenna device according to the embodiment of the present application.
Fig. 15 is a third front view of an antenna device according to an embodiment of the present application.
Fig. 16 is a schematic diagram of a first structure of an electronic device according to an embodiment of the present application.
Fig. 17 is a schematic diagram of a second structure of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The embodiment of the application provides an antenna device which can be arranged in electronic equipment. The antenna device may transmit wireless signals, such as 4G (the 4G th generation mobile communication technology, fourth generation mobile communication technology) signals, 5G (fifth generation mobile communication) signals, and so on, so as to implement wireless communication between the electronic device and the base station or other electronic devices.
Referring to fig. 1 and fig. 2 simultaneously, fig. 1 is a schematic diagram of a first principle of an antenna apparatus 100 provided in an embodiment of the present application, and fig. 2 is a front view of the first principle of the antenna apparatus 100 provided in the embodiment of the present application. The antenna device 100 comprises a first antenna 10, a second antenna 20, a composite ground structure 30, a first conductor structure 41 and a second conductor structure 51.
Wherein both the first antenna 10 and the second antenna 20 may be used for transmitting wireless signals. It is understood that transmitting wireless signals may include transmitting wireless signals, receiving wireless signals, transmitting and receiving wireless signals, and the like. The first antenna 10 has a first clear space 11, and the first clear space 11 can improve the radiation efficiency of the first antenna 10. The second antenna 20 has a second clearance area 21, and the second clearance area 21 can improve the radiation efficiency of the second antenna 20. Wherein the first clearance area 11 is disposed opposite to the second clearance area 21.
The first antenna 10 and the second antenna 20 may be formed in various ways. For example, the first antenna 10 and the second antenna 20 may be formed by a metal frame of an electronic device, the first antenna 10 and the second antenna 20 may be formed by an FPC (Flexible Printed Circuit, flexible circuit board), or the first antenna 10 and the second antenna 20 may be formed by an LDS (Laser Direct Structuring, laser direct structuring technology) process. The first antenna 10 and the second antenna 20 may be formed in the same manner, or may be formed in different manners.
The first Antenna 10 and the second Antenna 20 may be in the form of inverted-F antennas (Inverted F Antenna, IFA), loop antennas (Loop antennas), slot antennas (Open Slot Antenna), and the like. The first antenna 10 and the second antenna 20 may be antennas of the same type or antennas of different types.
The composite ground structure 30 forms a ground system for the antenna device 100. Wherein the composite ground structure 30 includes a first ground structure 31 and a second ground structure 32. The second grounding structure 32 is connected to the first grounding structure 31. The first ground structure 31 and the second ground structure 32 may be formed by conductor structures. For example, in some embodiments, the first ground structure 31 may be formed by a metal center of the electronic device and the second ground structure 32 may be formed by a circuit board (Printed Circuit Board, PCB) of the electronic device. It will be appreciated that in other embodiments, the first grounding structure 31 may also be formed by a circuit board of the electronic device, and the second grounding structure 32 may also be formed by a metal middle frame of the electronic device.
The composite grounding structure 30 is connected to the first antenna 10 and the second antenna 20 to realize grounding of the first antenna 10 and the second antenna 20. For example, the first antenna 10, the second antenna 20 may be connected with the first ground structure 31 to achieve a ground.
The first conductor structure 41 is electrically connected to the first ground structure 31 and the second ground structure 32. Wherein the first conductor structure 41 is adjacent to the first clearance area 11.
The second conductor structure 51 is electrically connected to the first ground structure 31 and the second ground structure 32. Wherein the second conductor structure 51 is adjacent to the second clearance area 21.
When the first antenna 10 and the second antenna 20 transmit wireless signals, the first conductor structure 41 and the second conductor structure 51 can form resonance, so that the current distribution of the first antenna 10 and the second antenna 20 changes, the coupling degree between the first antenna 10 and the second antenna 20 is reduced, and the isolation degree between the first antenna 10 and the second antenna 20 is improved.
The shape, size, etc. of the first conductor structure 41, the second conductor structure 51 may be adapted to the layout space in which the antenna device 100 is located. For example, in some embodiments, referring to fig. 3 and fig. 4 simultaneously, fig. 3 is a schematic structural diagram of a first conductor structure 41 of an antenna device provided in an embodiment of the present application, and fig. 4 is a schematic structural diagram of a second conductor structure 51 of an antenna device provided in an embodiment of the present application. The first conductor structure 41 may be bent, as shown in fig. 3, to accommodate the layout space in which the first antenna 10 is located. The second conductor structure 51 may also be bent, as shown in fig. 4, to accommodate the layout space in which the second antenna 20 is located.
It will be appreciated that since the antenna apparatus 100 is disposed in an electronic device, and the layout space in the electronic device is generally limited, the distance between the first antenna 10 and the second antenna 20 may be relatively close. Therefore, when the first antenna 10 and the second antenna 20 transmit wireless signals, the two antennas are coupled to each other, resulting in poor isolation between the first antenna 10 and the second antenna 20 and reduced radiation efficiency of the first antenna 10 and the second antenna 20.
Accordingly, the provision of the first conductor structure 41 and the second conductor structure 51 can reduce the degree of coupling between the first antenna 10 and the second antenna 20, thereby improving the radiation efficiency of the first antenna 10 and the second antenna 20. It will be appreciated that since the first conductor structure 41 is close to the first clear space 11 of the first antenna 10 and the second conductor structure 51 is close to the second clear space 21 of the second antenna 20, the first conductor structure 41 mainly improves the radiation efficiency of the first antenna 10 and the second conductor structure 51 mainly improves the radiation efficiency of the second antenna 20.
For example, when only the first antenna 10 is provided in the electronic device, the radiation efficiency of the first antenna 10 may reach 85%. When the second antenna 20 is further provided on the basis of the presence of the first antenna 10, the radiation efficiency of both the first antenna 10 and the second antenna 20 may be reduced to 70%. At this time, after the first conductor structure 41 and the second conductor structure 51 are provided, the radiation efficiency of both the first antenna 10 and the second antenna 20 can be improved, for example, the radiation efficiency of the first antenna 10 can be improved to approximately 80%, and the radiation efficiency of the second antenna 20 can be improved to approximately 75%.
In the description of the present application, it should be understood that terms such as "first," "second," and the like are used merely to distinguish between similar objects and should not be construed to indicate or imply relative importance or implying any particular order of magnitude of the technical features indicated.
In the antenna device 100 of the embodiment of the present application, by setting the first conductor structure 41 and the second conductor structure 51, and making the first conductor structure 41 close to the clearance area of the first antenna 10 and the second conductor structure 51 close to the clearance area of the second antenna 20, the coupling degree between the first antenna 10 and the second antenna 20 can be reduced, thereby improving the isolation degree between the first antenna 10 and the second antenna 20, and improving the radiation efficiency of the first antenna 10 and the second antenna 20.
In some embodiments, referring to fig. 5, fig. 5 is a schematic diagram of a second principle of the antenna device 100 according to the embodiments of the present application.
Wherein the antenna device 100 further comprises a first capacitor 42. The first capacitor 42 is electrically connected to the first conductor structure 41 and the second ground structure 32, respectively. Thus, the first ground structure 31 may be electrically connected with the second ground structure 32 through the first conductor structure 41 and the first capacitor 42.
In some embodiments, referring to fig. 6, fig. 6 is a schematic diagram of a third principle of the antenna device 100 according to the embodiments of the present application.
Wherein the first capacitor 42 may also be replaced by a first inductor 43. The first inductor 43 is electrically connected to the first conductor structure 41 and the second ground structure 32, respectively. Thus, the first ground structure 31 may be electrically connected with the second ground structure 32 through the first conductor structure 41 and the first inductor 43.
It will be appreciated that the first conductor structure 41 may be formed by a metal component in the electronic device. For example, the first conductor structure 41 may be a metal spring, a metal screw, or the like.
In practical applications, the first grounding structure 31 may be formed by a metal middle frame of the electronic device, and the second grounding structure 32 may be formed by a PCB of the electronic device. The first capacitor 42 or the first inductor 43 may be disposed on the PCB. One end of the first conductor structure 41 formed by the metal spring plate or the metal screw may be connected to the metal middle frame, and the other end may be connected to the first capacitor 42 or the first inductor 43 through a printed circuit on the PCB, and the first capacitor 42 or the first inductor 43 may be connected to a ground structure on the PCB, which may be understood as a second ground structure. The capacitance value of the first capacitor 42 and the inductance value of the first inductor 43 may be set according to actual needs.
In some embodiments, reference is continued to fig. 5. Wherein the antenna device 100 further comprises a second capacitor 52. The second capacitor 52 is electrically connected to the second conductor structure 51 and the second ground structure 32. Thus, the first ground structure 31 may also be electrically connected to the second ground structure 32 through the second conductor structure 51 and the second capacitor 52.
In some embodiments, reference is continued to fig. 6. Wherein the second capacitor 52 may also be replaced by a second inductor 53. The second inductor 53 is electrically connected to the second conductor structure 51 and the second ground structure 32. Thus, the first ground structure 31 may also be electrically connected to the second ground structure 32 through the second conductor structure 51 and the second inductor 53.
It will be appreciated that the second conductor structure 51 may also be formed by metal components in the electronic device. For example, the second conductor structure 51 may be a metal spring, a metal screw, or the like.
In practice, the second capacitor 52 or the second inductor 53 may also be provided on the PCB. One end of the second conductor structure 51 formed by the metal spring plate or the metal screw may be connected to the metal middle frame, and the other end may be connected to the second capacitor 52 or the second inductor 53 through a printed circuit on the PCB, and the second capacitor 52 or the second inductor 53 is connected to a ground structure on the PCB. The capacitance value of the second capacitor 52 and the inductance value of the second inductor 53 may be set according to actual needs.
It will be appreciated that in practical applications, the first conductor structure 41 may be electrically connected to the second ground structure 32 through the first capacitor 42, and the second conductor structure 51 may be electrically connected to the second ground structure 32 through the second inductor 53. Alternatively, the first conductor structure 41 may be electrically connected to the second ground structure 32 through the first inductor 43, and the second conductor structure 51 may be electrically connected to the second ground structure 32 through the second capacitor 52.
In some embodiments, referring to fig. 7, fig. 8, fig. 9, and fig. 10 simultaneously, fig. 7 is a schematic view of a first perspective structure of an antenna device 100 provided in an embodiment of the present application, fig. 8 is a schematic view of a partial enlargement of an area a of the antenna device shown in fig. 7, fig. 9 is a schematic view of a second perspective structure of the antenna device 100 provided in an embodiment of the present application, and fig. 10 is a schematic view of a partial enlargement of an area B of the antenna device shown in fig. 9.
Wherein the first antenna 10 comprises a first open end 12. The second antenna 20 includes a second open end 22. In practical applications, the first antenna 10 and the second antenna 20 may be disposed on two sides of the electronic device, and the first open end 12 is disposed opposite to the second open end 22.
The first grounding structure 31 is provided with a first notch 311 and a second notch 313 which are spaced apart. The first notch 311 and the second notch 313 may be located at two corners of the first grounding structure 31, or on sides of the first grounding structure 31 near the corners, respectively. The first notch 311 forms a first sidewall 312 on the first grounding structure 31. The first sidewall 312 faces the first open end 12. The second notch 313 forms a third sidewall 314 on the first ground structure 31. The third sidewall 314 is oriented toward the second open end 22. It is understood that the first sidewall 312 may be any sidewall of the first notch 311 formed on the first grounding structure 31. The third sidewall 314 may be any sidewall of the second notch 313 formed on the first ground structure 31.
Wherein the first conductor structure 41 is connected to the first sidewall 312 to realize connection with the first ground structure 31. The second conductor structure 51 is connected to the third sidewall 314 to enable connection to the first ground structure 31.
The second grounding structure 32 may be provided with a first groove 321 thereon. The first groove 321 forms a second sidewall 322 on the second ground structure 32. It is understood that the second sidewall 322 may be any sidewall of the first recess 321 formed on the second ground structure 32.
Wherein the first conductor structure 41 is electrically connected with the second sidewall 322. For example, the first conductor structure 41 may be electrically connected to the second sidewall 322 through the first capacitor 42 or the first inductor 43 to make electrical connection to the second ground structure 32.
It will be appreciated that in some embodiments, the second grounding structure 32 may also have a second recess provided therein. The second groove forms a fourth sidewall on the second ground structure. The fourth sidewall may be any sidewall of the second recess formed on the second ground structure 32. The structure of the second groove may be similar to that of the first groove 321.
Wherein the second conductor structure 51 is electrically connected to the fourth sidewall. For example, the second conductor structure 51 may be electrically connected to the fourth sidewall through a second capacitor 52 or a second inductor 53 to make electrical connection to the second ground structure 32.
It should be noted that, the second grounding structure 32 may be provided with only the first groove 321, only the second groove, and both the first groove 321 and the second groove. The grooves on the second grounding structure 32 may be configured according to practical application requirements.
In some embodiments, referring to fig. 11 and fig. 12 simultaneously, fig. 11 is a cross-sectional view of the antenna device 100 shown in fig. 2 along the direction P1-P2, and fig. 12 is a second front view of the antenna device 100 according to the embodiment of the present application.
The antenna device 100 further comprises at least one decoupling branch 60. For example, as shown in fig. 11, the antenna device 100 includes a decoupling branch 60; as shown in fig. 12, the antenna device 100 includes 4 decoupling branches 60. Each decoupling branch 60 is electrically connected to the first ground structure 31 and the second ground structure 32. Each decoupling branch 60 may reduce the degree of coupling between the first antenna 10 and the second antenna 20, thereby further improving the isolation between the first antenna 10 and the second antenna 20.
For example, when the first antenna 10 and the second antenna 20 are provided in the electronic device, the radiation efficiency of both the first antenna 10 and the second antenna 20 may be reduced to 70%. After the first conductor structure 41 and the second conductor structure 51 are provided, the radiation efficiency of the first antenna 10 can be improved to, for example, approximately 80%, and the radiation efficiency of the second antenna 20 can be improved to, for example, approximately 75%. On the basis of this, the radiation efficiency of the first antenna 10 can be improved to 80%, for example, and the radiation efficiency of the second antenna 20 can be improved to 80%, for example, when one or more decoupling branches 60 are further provided.
It will be appreciated that when there are a plurality of decoupling branches 60, one of the plurality of decoupling branches 60 may have a primary effect on reducing the degree of coupling between the first antenna 10 and the second antenna 20, and the other may have a secondary effect.
Therefore, by providing the decoupling branch 60 in the antenna device 100, the degree of coupling between the first antenna 10 and the second antenna 20 can be further reduced, and the radiation efficiency of the first antenna 10 and the second antenna 20 can be further improved.
In some embodiments, referring to fig. 13, fig. 13 is a schematic diagram of a fourth principle of an antenna apparatus according to an embodiment of the present application.
Wherein each decoupling branch 60 comprises a third conductor structure 61 and a third capacitor 62. The third conductor structure 61 is connected to the first ground structure 31. It will be appreciated that the third conductor structure 61 may also be formed by metal components in the electronic device. For example, the third conductor structure 61 may be a metal spring, a metal screw, or the like. The third capacitor 62 is electrically connected to the third conductor structure 61 and the second ground structure 32. Thus, the first ground structure 31 may also be electrically connected to the second ground structure 32 through the third conductor structure 61, the inductor or the third capacitor 62.
In some embodiments, referring to fig. 14, fig. 14 is a schematic diagram of a fifth principle of an antenna apparatus 100 according to an embodiment of the present application.
Wherein the third capacitor 62 may be replaced with a third inductor 63. The third inductor 63 is electrically connected to the third conductor structure 61 and the second ground structure 32. Accordingly, the first grounding structure 31 may be electrically connected to the second grounding structure 32 through the third conductor structure 61 and the third inductor 63.
It is understood that the capacitance value of the third capacitor 62 and the inductance value of the third inductor 63 may be set according to actual needs.
In some embodiments, referring to fig. 15, fig. 15 is a third front view of an antenna device 100 according to an embodiment of the present application.
The first antenna 10 further comprises a first shorting terminal 13, a first feed point 14, and a first tuning point 15. The first feeding point 14 is located between the first short-circuit end 13 and the first opening end 12. The first tuning point 15 may be located between the first feed point 14 and the first open end 12.
Wherein the first shorting end 13 is connected to the first grounding structure 31 to ground the first antenna 10. For example, the first short-circuit end 13 may be connected to the first grounding structure 31 formed by the metal middle frame through a metal bracket, or may be directly connected to the first grounding structure 31 formed by the metal middle frame to implement grounding.
The antenna arrangement 100 further comprises a first feed 323. The first feed 323 may be disposed on the second ground structure 32. For example, when the second ground structure 32 is formed by a PCB, the first feed 323 may be disposed on the PCB. The first feed 323 is used to provide an excitation signal.
The first feed point 14 is electrically connected to the first feed 323 such that the first feed 323 feeds the first antenna 10. Thus, the first antenna 10 may transmit an excitation signal fed by the first feed 323 to radiate a wireless signal.
The first tuning point 15 is electrically connected to the second ground structure 32 through a first antenna switch 325. The first antenna switch 325 may be used to switch the radiation frequency band of the first antenna 10 so that the first antenna 10 may transmit wireless signals in different frequency bands.
In some embodiments, with continued reference to fig. 15, the second antenna 20 further includes a second shorting end 23, a second feed point 24, and a second tuning point 25. The second feeding point 24 is located between the second short-circuit end 23 and the second open end 22. The second tuning point 25 may be located between the second feed point 24 and the second open end 22.
Wherein the second shorting end 23 is connected to the first grounding structure 31 to ground the second antenna 20. For example, the second short-circuit end 23 may be connected to the first grounding structure 31 formed by the metal middle frame through a metal bracket, or may be directly connected to the first grounding structure 31 formed by the metal middle frame to implement grounding.
The antenna arrangement 100 also includes a second feed 324. The second feed 324 may be disposed on the second ground structure 32. For example, when the second ground structure 32 is formed by a PCB, the second feed 324 may be disposed on the PCB. The second feed 324 may also be used to provide an excitation signal.
The second feed point 24 is electrically connected to the second feed 324 such that the second feed 324 feeds the second antenna 20. Thus, the second antenna 20 may transmit an excitation signal fed by the second feed 324 to radiate a wireless signal.
The second tuning point 25 is electrically connected to a second ground structure 323 through a second antenna switch 326. The second antenna switch 326 may be used to switch the radiation frequency band of the second antenna 20, so that the second antenna 20 may transmit wireless signals in different frequency bands.
In some embodiments, the radiation frequency band of the first antenna 10 and the radiation frequency band of the second antenna 20 are the same frequency band or adjacent frequency bands. It can be appreciated that when the radiation frequency band of the first antenna 10 and the radiation frequency band of the second antenna 20 are the same frequency band or adjacent frequency bands, the coupling phenomenon between the first antenna 10 and the second antenna 20 is more serious, so that the arrangement of the first conductor structure 41, the second conductor structure 51 and the at least one decoupling branch 60 can better reduce the coupling degree between the first antenna 10 and the second antenna 20, and improve the efficiency of the first antenna 10 and the second antenna 20 in the respective radiation frequency bands.
In the antenna device 100 of the embodiment of the present application, by providing the first conductor structure 41 and the second conductor structure 51, and making the first conductor structure 41 close to the clearance area of the first antenna 10 and the second conductor structure 51 close to the clearance area of the second antenna 20, the coupling degree between the first antenna 10 and the second antenna 20 can be reduced, so that the radiation efficiency of the first antenna 10 and the second antenna 20 can be improved. In addition, by further providing at least one decoupling branch 60, the degree of coupling between the first antenna 10 and the second antenna 20 can be further reduced, thereby further improving the radiation efficiency of the first antenna 10 and the second antenna 20.
The embodiment of the application also provides electronic equipment. The electronic device may be a device such as a smart phone, a tablet computer, or a device capable of wireless communication such as a game device, an AR (Augmented Reality) device, a notebook computer, or a desktop computing device.
Referring to fig. 16, fig. 16 is a schematic diagram of a first structure of an electronic device 200 according to an embodiment of the present application.
Wherein the electronic device 200 comprises the antenna arrangement 100. The antenna device 100 may be the antenna device 100 according to any of the embodiments described above. The electronic device 200 may transmit a wireless signal through the antenna apparatus 100, thereby implementing a wireless communication function.
In some embodiments, referring to fig. 17, fig. 17 is a schematic diagram of a second structure of an electronic device 200 according to an embodiment of the present application.
The electronic device 200 includes a metal bezel 210, a metal center 220, and a circuit board (PCB) 230.
The metal bezel 210 forms a side bezel of the electronic device 200. The material of the metal frame 210 may include a material such as magnesium alloy, aluminum alloy, and the like. The metal frame 210 is formed with first and second spaced apart metal branches 211 and 212. The first metal stub 211 forms the first antenna 10 described above. The second metal stub 212 forms the second antenna 20 described above. For example, a first slit 213 and a second slit 214 may be provided on the metal frame 210 at intervals, the first metal branch 211 may be formed through the first slit 213, and the second metal branch 212 may be formed through the second slit 214. Therefore, the first antenna 10 and the second antenna 20 may be formed by the metal frame 210, so that multiplexing of the metal frame 210 is achieved, and the first antenna 10 and the second antenna 20 do not need to be separately provided in the electronic device 200.
The metal center 220 is the main carrying structure of the electronic device 200, and is used for carrying various functional components and electronic devices of the electronic device 200. The material of the metal middle frame 220 may include, for example, a magnesium alloy, an aluminum alloy, and the like. In addition, it is understood that the metal center 220 may be injection molded with a non-metallic structure, such as plastic, for example, to the metal center 220. The metal bezel 210 is connected to the metal center 220.
The metal middle frame 220 may form the first grounding structure 31.
It is understood that in some embodiments, the metal middle frame 220 and the metal frame 210 may be integrally formed. For example, the metal middle frame 220 and the metal rim 210 may be integrally formed through an injection molding process.
The PCB 230 is disposed on the metal middle frame 220. PCB 230 may be a motherboard of electronic device 200. The PCB 230 may have integrated thereon various functional components and circuit structures such as a processor, a memory, a radio frequency processing circuit, and the like.
Wherein the PCB 230 may form the second ground structure 32 described above.
The antenna device and the electronic device provided in the embodiments of the present application are described in detail above. Specific examples are set forth herein to illustrate the principles and embodiments of the present application, with the description of the examples given above only to assist in understanding the present application. Meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (21)
1. An antenna device, comprising:
a first antenna having a first clear space;
a second antenna having a second clear space;
a composite grounding structure forming a grounding system of the antenna device, wherein the composite grounding structure is connected with the first antenna and the second antenna to realize the grounding of the first antenna and the second antenna, and comprises a first grounding structure and a second grounding structure connected with the first grounding structure;
the first conductor structure is electrically connected with the first grounding structure and the second grounding structure respectively, and the first conductor structure is close to the first clearance area;
a second conductor structure electrically connected to the first and second ground structures, respectively, the second conductor structure being proximate to the second clearance area;
the first conductor structure and the second conductor structure are used for reducing the coupling degree between the first antenna and the second antenna.
2. The antenna device according to claim 1, further comprising:
a first capacitor or a first inductor is electrically connected to the first conductor structure and the second ground structure, respectively.
3. An antenna arrangement according to claim 2, characterized in that:
the first antenna includes a first open end;
the first grounding structure is provided with a first notch, a first side wall is formed on the first grounding structure by the first notch, and the first side wall faces the first opening end;
the first conductor structure is connected with the first side wall.
4. An antenna arrangement according to claim 3, characterized in that:
the second grounding structure is provided with a first groove, and the first groove forms a second side wall on the second grounding structure;
the first capacitor or first inductor is electrically connected to the second sidewall.
5. The antenna device according to claim 1, further comprising:
a second capacitor or a second inductor is electrically connected to the second conductor structure and the second ground structure, respectively.
6. The antenna device according to claim 5, characterized in that:
the second antenna includes a second open end;
the first grounding structure is provided with a second notch, a third side wall is formed on the first grounding structure by the second notch, and the third side wall faces the second opening end;
the second conductor structure is connected with the third side wall.
7. The antenna device according to claim 6, characterized in that:
the second grounding structure is provided with a second groove, and a fourth side wall is formed on the second grounding structure by the second groove;
the second capacitor or second inductor is electrically connected to the fourth sidewall.
8. The antenna device according to any one of claims 1 to 7, further comprising:
at least one decoupling branch electrically connected to the first and second ground structures, the at least one decoupling branch for reducing a degree of coupling between the first and second antennas.
9. The antenna device according to claim 8, characterized in that the number of decoupling branches is four, four of the decoupling branches being arranged at intervals.
10. The antenna device according to claim 8, wherein each of said decoupling branches comprises:
a third conductor structure connected to the first ground structure;
a third inductor or a third capacitor is electrically connected to the third conductor structure and the second ground structure, respectively.
11. The antenna device according to any one of claims 1 to 7, characterized in that:
the first antenna further comprises a first short-circuited end, and the first short-circuited end is connected with the first grounding structure so as to enable the first antenna to be grounded.
12. The antenna device according to any one of claims 1 to 7, further comprising a first feed disposed on the second ground structure;
the first antenna further comprises a first feed point, and the first feed point is electrically connected with the first feed source so that the first feed source feeds the first antenna.
13. The antenna device according to any one of claims 1 to 7, characterized in that:
the first antenna further comprises a first tuning point, the first tuning point is electrically connected with the second grounding structure through a first antenna switch, and the first antenna switch is used for switching the radiation frequency band of the first antenna.
14. The antenna device according to any one of claims 1 to 7, characterized in that:
the second antenna further comprises a second short-circuited end, and the second short-circuited end is connected with the first grounding structure so as to enable the second antenna to be grounded.
15. The antenna arrangement according to any one of claims 1 to 7, further comprising a second feed disposed on the second ground structure;
the second antenna further comprises a second feed point, and the second feed point is electrically connected with the second feed source so that the second feed source feeds the second antenna.
16. The antenna device according to any one of claims 1 to 7, characterized in that:
the second antenna further comprises a second tuning point, the second tuning point is electrically connected with the second grounding structure through a second antenna switch, and the second antenna switch is used for switching the radiation frequency band of the second antenna.
17. The antenna device according to any one of claims 1 to 7, characterized in that:
the radiation frequency band of the first antenna and the radiation frequency band of the second antenna are the same frequency band or adjacent frequency bands.
18. An electronic device comprising an antenna arrangement as claimed in any one of claims 1 to 17.
19. The electronic device of claim 18, further comprising a metal bezel having formed thereon a first metal stub and a second metal stub, the first metal stub forming the first antenna and the second metal stub forming the second antenna.
20. The electronic device of claim 18, further comprising a metal center, the metal center forming the first ground structure.
21. The electronic device of claim 18, further comprising a circuit board forming the second ground structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110035941.9A CN112909541B (en) | 2021-01-12 | 2021-01-12 | Antenna device and electronic equipment |
| PCT/CN2021/130278 WO2022151826A1 (en) | 2021-01-12 | 2021-11-12 | Antenna apparatus and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110035941.9A CN112909541B (en) | 2021-01-12 | 2021-01-12 | Antenna device and electronic equipment |
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| Publication Number | Publication Date |
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| CN112909541A CN112909541A (en) | 2021-06-04 |
| CN112909541B true CN112909541B (en) | 2023-07-28 |
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| CN202110035941.9A Active CN112909541B (en) | 2021-01-12 | 2021-01-12 | Antenna device and electronic equipment |
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| CN (1) | CN112909541B (en) |
| WO (1) | WO2022151826A1 (en) |
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| CN112909541B (en) * | 2021-01-12 | 2023-07-28 | Oppo广东移动通信有限公司 | Antenna device and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450697A (en) * | 2016-10-21 | 2017-02-22 | 珠海市魅族科技有限公司 | Antenna apparatus of electronic equipment and the electronic equipment |
| CN107658561A (en) * | 2017-11-06 | 2018-02-02 | 珠海市魅族科技有限公司 | A kind of antenna assembly and terminal device |
| CN111276806A (en) * | 2020-02-14 | 2020-06-12 | 维沃移动通信有限公司 | Antenna and electronic equipment |
| WO2020124315A1 (en) * | 2018-12-17 | 2020-06-25 | 华为技术有限公司 | Method and structure for electromagnetic decoupling of antenna array |
| CN112103624A (en) * | 2020-09-16 | 2020-12-18 | Oppo（重庆）智能科技有限公司 | Antenna device and electronic apparatus |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130102170A (en) * | 2012-03-07 | 2013-09-17 | 주식회사 팬택 | Mobile communication terminal with improved isolation |
| TWI521788B (en) * | 2012-10-29 | 2016-02-11 | 啟碁科技股份有限公司 | Antenna assembly and wireless communication device |
| US10044110B2 (en) * | 2013-07-01 | 2018-08-07 | Qualcomm Incorporated | Antennas with shared grounding structure |
| GB201610113D0 (en) * | 2016-06-09 | 2016-07-27 | Smart Antenna Tech Ltd | An antenna system for a portable device |
| TWI593167B (en) * | 2015-12-08 | 2017-07-21 | 財團法人工業技術研究院 | Antenna array |
| CN110459856A (en) * | 2018-05-08 | 2019-11-15 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with the antenna structure |
| CN108808268A (en) * | 2018-06-06 | 2018-11-13 | Oppo（重庆）智能科技有限公司 | Antenna module and electronic equipment |
| CN109980364B (en) * | 2019-02-28 | 2021-09-14 | 华为技术有限公司 | Antenna module, antenna device and terminal equipment |
| CN110492237A (en) * | 2019-08-19 | 2019-11-22 | 深圳市信维通信股份有限公司 | Mimo antenna structure and mobile device based on metal edge frame |
| CN112909541B (en) * | 2021-01-12 | 2023-07-28 | Oppo广东移动通信有限公司 | Antenna device and electronic equipment |
-
2021
- 2021-01-12 CN CN202110035941.9A patent/CN112909541B/en active Active
- 2021-11-12 WO PCT/CN2021/130278 patent/WO2022151826A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450697A (en) * | 2016-10-21 | 2017-02-22 | 珠海市魅族科技有限公司 | Antenna apparatus of electronic equipment and the electronic equipment |
| CN107658561A (en) * | 2017-11-06 | 2018-02-02 | 珠海市魅族科技有限公司 | A kind of antenna assembly and terminal device |
| WO2020124315A1 (en) * | 2018-12-17 | 2020-06-25 | 华为技术有限公司 | Method and structure for electromagnetic decoupling of antenna array |
| CN111276806A (en) * | 2020-02-14 | 2020-06-12 | 维沃移动通信有限公司 | Antenna and electronic equipment |
| CN112103624A (en) * | 2020-09-16 | 2020-12-18 | Oppo（重庆）智能科技有限公司 | Antenna device and electronic apparatus |
Non-Patent Citations (4)
| Title |
|---|
| A compact highly isolated two ports microstrip antenna based on Defected Ground Structure for WLAN/WiMAX applications;Sara Mahmoud 等;《2016 Progress in Electromagnetic Research Symposium (PIERS)》;全文 * |
| Broadband Circularly Polarized Patch Antenna With Parasitic Strips;Jianjun Wu 等;《 IEEE Antennas and Wireless Propagation Letters 》;全文 * |
| 一种具有双频段的新型分集微带天线设计;成东林;王安国;冷文;;电子测量技术(07);全文 * |
| 耦合谐振器解耦网络在多天线系统中的应用;赵鲁豫等;《2015年全国天线年会论文集（下册）》;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112909541A (en) | 2021-06-04 |
| WO2022151826A1 (en) | 2022-07-21 |
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