Antenna module and electronic device

Abstract

The embodiment of the present application provides an antenna module and an electronic device. The antenna module comprises at least one antenna radiator and a power distribution network, a plurality of feeding ends of the power distribution network are used for connecting a plurality of corresponding feeding points in the at least one antenna radiator, each of the antenna radiators comprises a plurality of feeding points, and the power distribution network is used for distributing radio frequency signals to the plurality of corresponding feeding points in the antenna radiators. In the above manner, the plurality of feeding points can be connected to the at least one antenna radiator, so that the plurality of feeding points work cooperatively to form an antenna cluster, the performance of the antenna device is effectively improved, and the communication performance and user experience of the terminal device are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, and in particular to an antenna module and an electronic device. BACKGROUND

[0002] With the development of modern communication technology, the performance, function, and integration of electronic devices (e.g., terminals) are constantly improving to meet increasingly diverse and changing use scenarios and user needs.

[0003] The current antenna design in terminal devices is generally subject to the high integration of terminal devices. The antenna devices in terminal devices are difficult to simultaneously consider the performance indicators of multiple antennas due to their size, clearance, and excitation mode. For example, under the premise of not changing the performance of the antenna device, the performance of the over-the-air (OTA) of the terminal device can be improved by increasing the transmission power of the radio frequency end according to the use environment of the terminal device, but the specific absorption ratio (SAR) of the terminal device will increase with the increase of the transmission power.

[0004] Without changing the radio frequency architecture of the existing device, it is difficult to improve the performance of the antenna, thereby affecting the communication performance and user experience of the terminal device.

[0005] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the application and should not be regarded as an acknowledgment or any form of suggestion that this information forms prior art that is publicly known. SUMMARY

[0006] The present application aims to provide an antenna module and an electronic device to improve the performance of the antenna device in the terminal device.

[0007] According to a first aspect of the embodiments of the present application, an antenna module is provided, comprising a power distribution network and at least one antenna radiator, each of the antenna radiators comprising a plurality of feed points, a plurality of feed ends of the power distribution network being used to connect corresponding plurality of feed points in the antenna radiators, the power distribution network being used to distribute radio frequency signals to corresponding plurality of feed points in the antenna radiators.

[0008] According to a second aspect of the embodiments of the present application, an electronic device is provided, comprising the antenna module of the first aspect described above.

[0009] The embodiments of the present disclosure can connect the radio frequency signal to the multiple feed points corresponding to the at least one antenna radiator, and the multiple feed points corresponding to the at least one antenna radiator can work cooperatively to form an antenna cluster, thereby improving the performance of the antenna device in the electronic device. Since the radio frequency signal is dispersed to the multiple feed points at different positions of the single antenna radiator or to the multiple antenna radiators at different positions of the electronic device, the aggregation effect of energy radiation is reduced, and the SAR value of the electronic device can be effectively reduced under the same transmission power. Different antenna radiation modes can also be excited, and the directivity of the antenna far-field radiation pattern is improved to a certain extent. The performance of the antenna device is effectively improved, thereby improving the communication performance and user experience of the electronic device.

[0010] The embodiments of the present disclosure can connect the radio frequency signal to the multiple feed points corresponding to the at least one antenna radiator, and the multiple feed points corresponding to the at least one antenna radiator can work cooperatively to form an antenna cluster, thereby improving the performance of the antenna device in the electronic device. Since the radio frequency signal is dispersed to the multiple feed points at different positions of the single antenna radiator or to the multiple antenna radiators at different positions of the electronic device, the aggregation effect of energy radiation is reduced, and the SAR value of the electronic device can be effectively reduced under the same transmission power. Different antenna radiation modes can also be excited, and the directivity of the antenna far-field radiation pattern is improved to a certain extent. The performance of the antenna device is effectively improved, thereby improving the communication performance and user experience of the electronic device.

[0011] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Additional aspects and advantages of the present application will be partially given in the following description, partially will become apparent from the following description, or will be understood by practicing the present application. BRIEF DESCRIPTION OF DRAWINGS

[0012] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, in which:

[0013] Figure 1 A structural schematic diagram of an antenna module provided by an embodiment of the present application is shown;

[0014] Figure 2 A structural schematic diagram of a flexible circuit board antenna module provided by an embodiment of the present application is shown;

[0015] Figure 3 A structural schematic diagram of a metal frame antenna module provided by an embodiment of the present application is shown;

[0016] Figure 4 A structural schematic diagram of another antenna module provided by an embodiment of the present application is shown;

[0017] Figure 5 A structural schematic diagram of another flexible circuit board antenna module provided by an embodiment of the present application is shown;

[0018] Figure 6 A structural schematic diagram of another flexible circuit board antenna module provided by an embodiment of the present application is shown;

[0019] Figure 7A structural schematic diagram of still another flexible circuit board antenna module provided by an embodiment of the present application is shown;

[0020] Figure 8 A structural schematic diagram of still another flexible circuit board antenna module provided by an embodiment of the present application is shown;

[0021] Figure 9 A structural schematic diagram of still another flexible circuit board antenna module provided by an embodiment of the present application is shown;

[0022] Figure 10 A structural schematic diagram of still another metal frame antenna module provided by an embodiment of the present application is shown;

[0023] Figure 11 A structural schematic diagram of still another metal frame antenna module provided by an embodiment of the present application is shown;

[0024] Figure 12 A current distribution diagram of an antenna module provided by an embodiment of the present application is shown;

[0025] Figure 13 An efficiency comparison diagram of an antenna module provided by an embodiment of the present application and a related single-feed is shown;

[0026] Figure 14 An implementation gain comparison CDF diagram of an antenna module provided by an embodiment of the present application and a related single-feed is shown;

[0027] Figure 15 A structural schematic diagram of still another metal frame antenna module provided by an embodiment of the present application is shown;

[0028] Figure 16 A structural schematic diagram of still another metal frame antenna module provided by an embodiment of the present application is shown;

[0029] Figure 17 A structural schematic diagram of still another metal frame antenna module provided by an embodiment of the present application is shown;

[0030] Figure 18 A structural schematic diagram of a power distribution network provided by an embodiment of the present application is shown;

[0031] Figure 19 A structural schematic diagram of another power distribution network provided by an embodiment of the present application is shown;

[0032] Figure 20 A structural schematic diagram of still another power distribution network provided by an embodiment of the present application is shown;

[0033] Figure 21 A structural schematic diagram of still another power distribution network provided by an embodiment of the present application is shown;

[0034] Figure 22 Fig. 1 shows a schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] Embodiments of the present application will be described in detail below with reference to the drawings, in which like reference numerals refer to like elements or elements having the same function throughout the description of the drawings. The embodiments described below with reference to the drawings are merely exemplary for explaining the present application and should not be construed as limiting the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative work fall within the scope of the present application.

[0036] The terms "first", "second" in the specification and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified and limited. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0037] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] Figure 1 Fig. 1 shows a schematic diagram of an antenna module according to an embodiment of the present application, as shown in Figure 1 The antenna module 10 includes a power distribution network 1 and at least one antenna radiator 4, each antenna radiator 4 including a plurality of feed points, a plurality of feed terminals 3 of the power distribution network 1 being used to connect the corresponding plurality of feed points in the antenna radiator 4, the power distribution network 1 being used to distribute radio frequency signals to the corresponding plurality of feed points in the antenna radiator 4.

[0039] The related feeding mode is generally a single feeding mode, that is, the radio frequency signal connection antenna radiator includes one feeding point and one grounding point. In the embodiment of the present application, each antenna radiator 4 can include multiple feeding points. In some possible implementation manners, the antenna radiator 4 can not include the grounding point. The power distribution network 1 distributes the radio frequency signal to the multiple feeding points corresponding to one or more antenna radiators. The multiple feeding points included in at least one antenna radiator can form an antenna cluster. For example, the multiple feeding points included in one antenna radiator can form an antenna cluster, and the multiple feeding points included in multiple antenna radiators can also form an antenna cluster. Compared with the related single feeding implementation manner, in the case that each antenna radiator includes multiple feeding points, the antenna cluster can be formed in a more flexible manner. Since the energy radiation aggregation effect is reduced, the SAR value of the electronic device can be effectively reduced under the condition that the transmission power is the same. In addition, by forming the antenna cluster, different antenna radiation modes can be excited, and the directivity of the antenna far-field radiation pattern is improved to some extent.

[0040] In some embodiments, the antenna radiator 4 can not include the grounding point. By arranging multiple feeding points on the antenna radiator, since the current distribution of the antenna radiator at its working frequency or frequency band is changed, the antenna radiation mode that can be excited is more different from the related single feeding mode (that is, the antenna radiator single feeding point and single grounding point), and the directivity of the far-field radiation pattern can be improved. In some embodiments, in the case that the antenna radiator 4 does not include the grounding point, the size of the antenna radiator 4 can be increased by a preset multiple. The preset multiple is greater than 1, and optionally, the preset multiple can be 1.2-2 times.

[0041] As can be easily understood by those skilled in the art, in the related single feeding mode (that is, the antenna radiator single feeding point and single grounding point), the size of each antenna radiator is determined based on the preset antenna index in combination with the antenna design (for example, the number and position of the antenna radiators). The size (preset size) of each antenna radiator can be the same or different. On this basis, according to the technical manner of the embodiment of the present application, multiple feeding points can be arranged on the antenna radiator, the grounding point involved in the related single feeding mode is cancelled, and the size of the antenna radiator is increased by a preset multiple, the preset multiple is greater than 1, and optionally, the preset multiple can be 1.2-2 times. Compared with the related single feeding mode, the antenna cluster formed by the technical manner of the embodiment of the present application can improve the antenna bandwidth and the antenna efficiency, and at the same time, due to the change and superposition of the radiation mode, the directivity of the antenna radiation pattern is also improved.

[0042] In some embodiments, the antenna radiators include antenna radiators with grounding points and antenna radiators without grounding points, and the size of the antenna radiator without the grounding point is greater than the size of the antenna radiator with the grounding point.

[0043] In the case that the plurality of antenna radiators 4 include antenna radiators with grounding points and antenna radiators without grounding points, the size of the antenna radiators without grounding points can be increased (the preset multiple is greater than 1, and optionally, the preset multiple can be 1.2-2 times), and correspondingly, the size of the antenna radiators with grounding points can remain unchanged. In other words, in the case that the antenna radiators do not include grounding points, the size of the antenna radiators without grounding points can be greater than the size of the antenna radiators with grounding points.

[0044] In some embodiments, the antenna radiators are metal frame antennas, flexible circuit board antennas, or laser-engraved antennas, and the type of the antenna radiators is not limited in the present application.

[0045] Figure 2 A structure diagram of a flexible circuit board antenna module provided by an embodiment of the present application is shown in FIG. 2. As shown in FIG. 2, a plurality of feeding ends 3 of a power distribution network 1 are connected to a plurality of feeding points on an antenna radiator 4 (flexible circuit board antenna), and the antenna radiator 4 is not grounded, i.e., the grounding of the related antenna radiator is omitted. The specific arrangement of the feeding points can be determined by simulation calculation according to the optimization target of the antenna performance, and the specific selection of the feeding points is not particularly limited in the present disclosure. Figure 2

[0046] Since the current distribution of the antenna radiator at its working frequency or frequency band is changed, the antenna radiation mode that can be excited is more obviously different from the related single feeding mode. When the size of the antenna radiator is increased by a preset multiple (the preset multiple is greater than 1, and optionally, the preset multiple is 1.2-2 times), the antenna cluster formed thereby can obtain the beneficial effects of improved bandwidth and efficiency. At the same time, due to the change and superposition of the radiation mode, the directivity of the far-field radiation pattern of the antenna device is also improved.

[0047] Figure 3 A structure diagram of a metal frame antenna module provided by an embodiment of the present application is shown in FIG. 3. As shown in FIG. 3, a plurality of feeding ends 3 of a power distribution network 1 are connected to a plurality of feeding points on an antenna radiator 4 (metal frame antenna), and the antenna radiator 4 is not grounded, i.e., the grounding of the related antenna radiator is omitted. The specific arrangement of the feeding points can be determined by simulation calculation according to the optimization target of the antenna performance, and the specific selection of the feeding points is not particularly limited in the present disclosure. Figure 3 ​As shown, the plurality of feeding terminals 3 of the power distribution network 1 are connected to the plurality of feeding points on the antenna radiator 4 (metal frame antenna). In a possible implementation, when the antenna radiator 4 is a metal frame antenna and the grounding point is omitted, the feeding points can be symmetrically distributed on the plurality of antenna radiation branches of the antenna radiator, and the antenna radiation modes excited by each feeding point are more different from those in the conventional single-feeding scheme. In this case, the feedings can be arranged at symmetric positions, and the size of the antenna radiator 4 is increased compared with the conventional single-feeding scheme. When the size of the antenna radiator is increased by a preset multiple (the preset multiple is greater than 1, and optionally, the preset multiple is 1.2-2 times), the antenna cluster formed thereby can obtain beneficial effects of bandwidth and efficiency, and the directivity of the far-field radiation pattern of the antenna device can also be improved due to the change and superposition of the radiation modes. The arrangement of the specific feeding points can also be determined by simulation calculation according to the optimization target of the antenna performance, and the disclosure does not particularly limit the selection of the specific feeding points.

[0048] By using the above technical manner, the plurality of feeding points are connected to the antenna radiator, so that the plurality of feeding points work cooperatively to form an antenna cluster, the performance of the antenna device can be effectively improved without changing the external interface structure of the antenna module, thereby improving the communication performance and user experience of the electronic device.

[0049] In some embodiments, each of the antenna radiators further includes a grounding point.

[0050] Generally, the feedings can be connected to any position of the antenna radiator, and the connection position of the feedings can be adjusted according to the beneficial effects and performance requirements of the antenna cluster.

[0051] In some possible implementations, the antenna radiator can include one radiation branch, the grounding point can be arranged on the radiation branch, and the plurality of feeding points can be arranged on both sides of the grounding point or on one side of the grounding point. The distances between the plurality of feeding points can be the same, for example, the plurality of feeding points can be uniformly distributed on the one radiation branch.

[0052] In some possible implementations, the antenna radiator can include at least two radiation branches, and the at least two radiation branches have at least one intersection. The grounding point can be arranged at any one of the following positions:

[0053] The intersection of the at least two radiation branches;

[0054] A main radiation branch of the at least two radiation branches, wherein the main radiation branch is a radiation branch supporting the lowest operating frequency of the antenna radiator;

[0055] An edge of one of the at least two radiation branches, wherein the edge is an end of the one radiation branch away from the intersection.

[0056] Figure 4 Fig. 2 shows a structural schematic diagram of another antenna module provided by an embodiment of the present application, as shown in Figure 4 The antenna module includes a power distribution network 1 and at least one antenna radiator 4, each of the antenna radiators 4 includes a plurality of feeding points, at least one of the antenna radiators 4 includes a grounding point 5, a plurality of feeding ends 3 of the power distribution network 1 are used to connect corresponding feeding points in the at least one antenna radiator 4, and the power distribution network 1 is used to distribute radio frequency signals to the corresponding plurality of feeding points in the antenna radiator 4.

[0057] In some embodiments, the antenna radiator can be a flexible circuit board antenna, the antenna radiator includes at least two radiating branches, and the grounding point is arranged at the intersection of the radiating branches or a main radiating branch in the at least two radiating branches, wherein the main radiating branch is a radiating branch corresponding to the lowest operating frequency supported by the antenna radiator.

[0058] According to different operating frequencies, the size of the corresponding radiating branch in each frequency band is also different. The lower the operating frequency, the longer the corresponding wavelength, and the larger the size of the corresponding radiating branch. Therefore, in some possible implementations, the radiating branch corresponding to the lowest operating frequency of the antenna radiator can be designed as the main radiating branch, and the grounding point can be arranged at the main radiating branch. In the case of designing multiple possible operating frequencies for the antenna radiator, the grounding point can also be arranged at the intersection of multiple radiating branches corresponding to multiple operating frequencies. The antenna radiator can also include only one operating frequency, that is, the antenna radiator includes only one radiating branch.

[0059] By using the above technical manner, each of the antenna radiators 4 includes a plurality of feeding points, at least one of the antenna radiators 4 includes a grounding point 5, in other words, each of the antenna radiators can include a grounding point, or part of the antenna radiators can include a grounding point, and the number of feeding points included in different antenna radiators can be the same or different. Through the cooperation of the plurality of feeding points included in the plurality of antenna radiators, the plurality of feeding points can work cooperatively to form an antenna cluster, effectively improving the performance of the antenna device, and thus improving the communication performance of the electronic device and the user experience.

[0060] Figure 5 Fig. 2 shows a structural schematic diagram of another antenna module provided by an embodiment of the present application, as shown in Figure 5 The antenna radiator 4 includes a first feeding point 61 and a second feeding point 62, wherein the distance between the first feeding point 61 and the grounding point 5 is less than a first preset distance threshold, the second feeding point 62 is located between the first feeding point 61 and the grounding point 5, and the distance between the second feeding point 62 and the first feeding point 61 is less than a second preset distance threshold, wherein the second preset distance threshold is less than the first preset distance threshold.

[0061] In some possible implementation manners, the first preset distance threshold can be λ / 4, and the second preset distance threshold can be λ / 8, where λ is a free space wavelength corresponding to a lowest working frequency designed for the antenna radiator 4.

[0062] By using the technical manner, the first feeding point 61 and the second feeding point 62 can simultaneously obtain good self-impedance, the antenna efficiency of the antenna cluster can be improved, and the SAR value of the electronic device can be reduced.

[0063] In some possible implementation manners, the positions of the feeding points can be further adjusted according to the reflection parameters of the antenna module. In a case where the self-impedance of each feeding connected to the antenna radiator 4 is less than or equal to a first preset impedance threshold, in order to avoid the coupling effect between the feedings from adversely affecting the impedance of the antenna cluster, the spacing between the first feeding point 61 and the second feeding point 62 can be set to be greater than a third preset distance threshold. The first preset impedance threshold can be -6 dB, and the third preset distance threshold can be λ / 16, where λ is an actual wavelength corresponding to a highest working frequency designed for the antenna radiator. h / 16, where λ h is an actual wavelength corresponding to a highest working frequency designed for the antenna radiator. The actual wavelength is a wavelength in an actual application scenario obtained by calculation or simulation in consideration of the overall design of the antenna module.

[0064] In another possible implementation manner, in a case where the self-impedance of each feeding connected to the antenna radiator is less than or equal to the first preset impedance threshold, in order to avoid the coupling effect between the feedings from adversely affecting the impedance of the antenna cluster, a decoupling structure can also be introduced between the first feeding point 61 and the second feeding point 62.

[0065] By using the technical manner, the multiple feeding points can be connected to at least one antenna radiator, so that the multiple feeding points work cooperatively to form an antenna cluster, the performance of the antenna device is effectively improved, and the communication performance and user experience of the electronic device are improved.

[0066] In another possible implementation manner, in a case where the self-impedance of each feeding connected to the antenna radiator 4 is greater than a second preset impedance threshold, the spacing between the first feeding point 61 and the second feeding point 62 can be set to be less than a fourth preset distance threshold. The second preset impedance threshold can be -6 dB, and the fourth preset distance threshold can be λ / 16, where λ is an actual wavelength corresponding to a lowest working frequency designed for the antenna radiator. l / 16, where λ l is an actual wavelength corresponding to a lowest working frequency designed for the antenna radiator 4. The actual wavelength is a wavelength in an actual application scenario obtained by calculation or simulation in consideration of the overall design of the antenna module.

[0067] By connecting multiple feeding points in the antenna radiator, the coupling waves between the feeding points and the echoes of the respective feeding positions produce destructive interference to form an antenna cluster, thereby improving the impedance of the antenna device and obtaining the beneficial effects of improving the bandwidth and efficiency of the antenna.

[0068] Figure 6 Fig. 4 shows a structural schematic diagram of another flexible circuit board antenna module provided by an embodiment of the present application. Figure 6 As shown in Fig. 4, the antenna radiator 4 includes a third feeding point 63 and a fourth feeding point 64, which are arranged on both sides of the grounding point 5, and the distance between the third feeding point 63 and the fourth feeding point 64 is less than the fifth preset distance threshold.

[0069] In some possible implementation manners, the fifth preset distance threshold can be λ / 4, where λ is the free space wavelength corresponding to the lowest working frequency designed for the antenna radiator 4.

[0070] By connecting multiple feeding points in the antenna radiator, the coupling waves between the feeding points and the echoes of the respective feeding positions produce destructive interference to form an antenna cluster, thereby improving the impedance of the antenna device and obtaining the beneficial effects of improving the bandwidth and efficiency of the antenna.

[0071] In some embodiments, the correspondence between the feeding ends 3 of the power distribution network 1 and the antenna radiators 4 can be flexibly set according to the needs and beneficial effects of forming an antenna cluster. It can be that multiple feeding ends 3 of the power distribution network 1 are connected to multiple feeding points of a single antenna radiator 4. It can also be that each feeding end 3 of the power distribution network 1 is connected to a respective corresponding antenna radiator 4 through a feeding point. It can also be that multiple feeding ends 3 of the power distribution network 1 are connected to corresponding antenna radiators 4 through feeding points, and each antenna radiator 4 is connected to at least one feeding end 3 of the power distribution network 1 through multiple feeding points.

[0072] Figure 7 Fig. 5 shows a structural schematic diagram of another flexible circuit board antenna module provided by an embodiment of the present application. Figure 7 As shown in Fig. 5, multiple feeding ends 3 of the power distribution network 1 are connected to multiple feeding points in the antenna radiator 4.

[0073] The antenna radiator 4 includes at least two radiation branches, and the grounding point 5 can be arranged at the intersection of the radiation branches or in a main radiation branch of at least one radiation branch, where the main radiation branch can be the radiation branch corresponding to the lowest working frequency designed for the antenna radiator 4.

[0074] The positions of the plurality of feeding points can be flexibly set as required. In some possible implementations, the specific positions of each feeding point on the antenna radiator 4 can be determined through simulation according to an antenna performance optimization target. The disclosure does not limit the specific connection positions. For example, the plurality of feeding points can also be flexibly set on the two sides of the grounding point 5.

[0075] By using the above technical means, on the one hand, the coupling effect between the feeding points can be utilized to improve the performance of the antenna device. On the other hand, due to the use of the plurality of feeding points, different radiation modes are excited, so that the radio frequency signals are radiated through different positions of the antenna radiator, the radiation energy aggregation effect is improved, and the SAR value of the electronic device is reduced.

[0076] Figure 8 A structure diagram of another flexible circuit board antenna module provided by an embodiment of the present application is shown in FIG. 4. As shown in FIG. 4, the antenna module 10 includes two antenna radiators 4, and the plurality of feeding ends 3 of the power distribution network 1 are connected to the plurality of feeding points of the two antenna radiators 4, wherein each antenna radiator includes two feeding points. Figure 8 A structure diagram of another flexible circuit board antenna module provided by an embodiment of the present application is shown in FIG. 4. As shown in FIG. 4, the antenna module 10 includes two antenna radiators 4, and the plurality of feeding ends 3 of the power distribution network 1 are connected to the plurality of feeding points of the two antenna radiators 4, wherein each antenna radiator includes two feeding points. Figure 9 A structure diagram of another flexible circuit board antenna module provided by an embodiment of the present application is shown in FIG. 4. As shown in FIG. 4, the antenna module 10 includes two antenna radiators 4, and the plurality of feeding ends 3 of the power distribution network 1 are connected to the plurality of feeding points of the two antenna radiators 4, wherein each antenna radiator includes two feeding points. Figure 9 A structure diagram of another flexible circuit board antenna module provided by an embodiment of the present application is shown in FIG. 4. As shown in FIG. 4, the antenna module 10 includes two antenna radiators 4, and the plurality of feeding ends 3 of the power distribution network 1 are connected to the plurality of feeding points of the two antenna radiators 4, wherein each antenna radiator includes two feeding points.

[0077] Those skilled in the art can understand that the antenna module 10 can include more antenna radiators 4, and each antenna radiator 4 can include at least one feeding point. The number of feeding points on each antenna radiator 4 can be the same or different.

[0078] When the power distribution network 1 is connected to the plurality of antenna radiators 4 placed at different positions of the electronic device, the advantages of their respective positions can be complementary. On the one hand, the radio frequency signals can be dispersed to different positions of the electronic device for radiation, the radiation energy aggregation effect is improved, and the SAR value of the electronic device is reduced. On the other hand, the antenna radiators located at different positions of the electronic device are not easily affected by the use environment of the electronic device at the same time, the influence of the human body on the performance of the antenna device is weakened, and the stability of the antenna radiation signal can be improved.

[0079] In some embodiments, the antenna radiator can be a metal frame antenna, the antenna radiator includes at least two radiation branches, at least two radiation branches have at least one intersection, and the grounding point is arranged at the intersection of the at least two radiation branches or the edge of one of the at least two radiation branches, wherein the edge is one end of the radiation branch away from the intersection.

[0080] Figure 10 Fig. 2 shows a structural schematic diagram of yet another metal frame antenna module provided by an embodiment of the present application, as shown in Figure 10 As shown, the antenna radiator 4 includes a first radiation branch 41 and a second radiation branch 42, the grounding point 5 is arranged at the edge of the first radiation branch 41, the fifth feeding point 65 is arranged at the second radiation branch 42 and the distance between the fifth feeding point 65 and the edge of the second radiation branch 42 is less than a sixth preset distance threshold, and the sixth feeding point 66 is arranged at the first radiation branch 41 and between the fifth feeding point 65 and the grounding point 5.

[0081] In some possible implementation manners, the sixth preset distance threshold can be λ / 2, where λ is the free space wavelength corresponding to the lowest working frequency designed for the antenna radiator.

[0082] The antenna cluster formed by the above technical means can effectively disperse the radiation energy of the antenna and reduce the SAR value of the electronic device.

[0083] Figure 11 Fig. 2 shows a structural schematic diagram of yet another metal frame antenna module provided by an embodiment of the present application, as shown in Figure 11 As shown, the antenna radiator 4 includes a third radiation branch 43 and a fourth radiation branch 44, the grounding point 5 is arranged at the intersection of the third radiation branch 43 and the fourth radiation branch 44, the seventh feeding point 67 is arranged at the third radiation branch 43 and the distance between the seventh feeding point 67 and the edge of the third radiation branch is less than a seventh preset distance threshold, and the eighth feeding point 68 is arranged at the fourth radiation branch 44 and the distance between the eighth feeding point 68 and the edge of the fourth radiation branch 44 is less than an eighth preset distance threshold.

[0084] In some possible implementation manners, the seventh preset distance threshold can be λ / 2 and the eighth preset distance threshold can be λ / 2, where λ is the free space wavelength corresponding to the lowest working frequency designed for the antenna radiator, and the seventh preset distance threshold and the eighth preset distance threshold can be the same or different.

[0085] By using the above technical means, when the antenna radiator is a metal frame antenna and the grounding point is arranged between the feeding points, the adjustment of each feeding position is more independent, the antenna cluster formed by connecting multiple feeding points can obtain a better self-impedance in the corresponding working frequency band, and the antenna cluster can obtain balanced performance in multiple frequency bands.

[0086] Figure 12 Fig. 2 shows a structural schematic diagram of yet another metal frame antenna module provided by an embodiment of the present application, as shown in Figure 11 As shown, the antenna radiator 4 includes a third radiation branch 43 and a fourth radiation branch 44, the grounding point 5 is arranged at the intersection of the third radiation branch 43 and the fourth radiation branch 44, the seventh feeding point 67 is arranged at the third radiation branch 43 and the distance between the seventh feeding point 67 and the edge of the third radiation branch is less than a seventh preset distance threshold, and the eighth feeding point 68 is arranged at the fourth radiation branch 44 and the distance between the eighth feeding point 68 and the edge of the fourth radiation branch 44 is less than an eighth preset distance threshold. Figure 12 As shown, when the grounding point of the antenna radiator is arranged according to Figure 11The embodiment shown in the figure is arranged at the intersection of the antenna radiation branches, and the seventh feed point and the eighth feed point work in the same operating frequency band. After the radio frequency signal forms the antenna cluster according to the equal amplitude and same phase distribution mode, the amplitude and phase of the antenna radiation signal are basically symmetrical through the antenna cluster formed by connecting multiple feed points, and relatively balanced performance can be obtained in the operating frequency band.

[0087] Figure 13 The structure of the antenna module provided by the embodiment shown in the figure is shown in the figure. Figure 11 The efficiency comparison chart of the antenna module provided by the embodiment shown in the figure and the related single feed is shown in the figure. Figure 13 As shown in the figure, the ground point of the antenna radiator is arranged at the intersection of the antenna radiation branches according to the embodiment shown in the figure, and the seventh feed point and the eighth feed point work in the same operating frequency band. Figure 11 The embodiment shown in the figure is arranged at the intersection of the antenna radiation branches, and the seventh feed point and the eighth feed point work in the same operating frequency band. After the radio frequency signal forms the antenna cluster according to the equal amplitude and same phase distribution mode, the amplitude and phase of the antenna radiation signal are basically symmetrical through the antenna cluster formed by connecting multiple feed points, and relatively balanced performance can be obtained in the operating frequency band.

[0088] Figure 14 The structure of the antenna module provided by the embodiment shown in the figure is shown in the figure. Figure 11 The CDF chart of the realized gain of the antenna module provided by the embodiment shown in the figure and the related single feed is shown in the figure. Figure 14 As shown in the figure, the ground point of the antenna radiator is arranged at the intersection of the antenna radiation branches according to the embodiment shown in the figure, and the seventh feed point and the eighth feed point work in the same operating frequency band. Figure 11 The embodiment shown in the figure is arranged at the intersection of the antenna radiation branches, and the seventh feed point and the eighth feed point work in the same operating frequency band. After the radio frequency signal forms the antenna cluster according to the equal amplitude and same phase distribution mode, the amplitude and phase of the antenna radiation signal are basically symmetrical through the antenna cluster formed by connecting multiple feed points, and relatively balanced performance can be obtained in the operating frequency band.

[0089] As shown in Table 1, the ground point of the antenna radiator is arranged at the intersection of the antenna radiation branches according to the embodiment shown in the figure, and the seventh feed point and the eighth feed point work in the same operating frequency band. Figure 11 The embodiment shown in the figure is arranged at the intersection of the antenna radiation branches, and the seventh feed point and the eighth feed point work in the same operating frequency band. After the radio frequency signal forms the antenna cluster according to the equal amplitude and same phase distribution mode, the amplitude and phase of the antenna radiation signal are basically symmetrical through the antenna cluster formed by connecting multiple feed points, and relatively balanced performance can be obtained in the operating frequency band.

[0090] SAR (W / kg) Front side Back side Short side side Long side side Antenna cluster 1.60 1.59 0.81 0.63 Correlation single feed 2.25 2.98 1.10 0.96

[0091] Table 1

[0092] Figure 15 The structure of the antenna module provided by the embodiment shown in the figure is shown in the figure. Figure 15 As shown in the figure, the multiple feed ends 3 of the power distribution network 1 are connected to the multiple feed points in the antenna radiator 4.

[0093] The antenna radiator 4 comprises at least one radiating branch, and the grounding point 5 can be arranged at an edge point of any radiating branch. The positions of the plurality of feeding points can be flexibly arranged as required, for example, can be uniformly distributed in the plurality of radiating branches.

[0094] Those skilled in the art can understand that the performance of the antenna module is also related to the shape and position of the antenna radiator, and the structural design of the electronic device to which the antenna module belongs. Those skilled in the art can also appropriately adjust the positions of the feeding points by simulation in combination with the shape and position of the antenna radiator and the structural design of the electronic device to which the antenna module belongs on the basis of the design of the embodiment.

[0095] By using the above technical manner, on the one hand, the coupling effect between the feeding points can be utilized to improve the performance of the antenna module, and on the other hand, by connecting the plurality of feeding points of the antenna radiator, different radiation modes can be excited, so that the radio frequency signals are radiated through different positions of the antenna radiator, the aggregation effect of the radiation energy is improved, and the SAR value of the electronic device is reduced.

[0096] Figure 16 A structure schematic diagram of another metal frame antenna module provided by an embodiment of the present application is shown in FIG. 6. Figure 16 As shown in FIG. 6, the antenna module comprises two antenna radiators 4, and the plurality of feeding ends 3 of the power distribution network 1 are respectively connected to the plurality of feeding points of the two antenna radiators 4, wherein each antenna radiator comprises two feeding points. Figure 17 A structure schematic diagram of another metal frame antenna module provided by an embodiment of the present application is shown in FIG. 7. Figure 17 As shown in FIG. 7, the antenna module comprises two antenna radiators 4, and the plurality of feeding ends 3 of the power distribution network 1 are respectively connected to the plurality of feeding points of the two antenna radiators 4, wherein each antenna radiator comprises one feeding point.

[0097] The grounding point 5 can be arranged at an edge point of the antenna radiator 4. The positions of the plurality of feeding points can be flexibly arranged as required, for example, can be uniformly distributed in the plurality of antenna radiators 4.

[0098] Those skilled in the art can understand that the performance of the antenna module is also related to the shape and position of the antenna radiator, and the structural design of the electronic device to which the antenna module belongs. Those skilled in the art can also appropriately adjust the positions of the feeding points by simulation in combination with the shape and position of the antenna radiator and the structural design of the electronic device to which the antenna module belongs on the basis of the design of the embodiment.

[0099] When the feeding ends of the power distribution network are connected to the multiple antenna radiators arranged at different positions of the electronic device, the advantages of their respective positions can be complementary, on the one hand, the radio frequency signals can be dispersed to different positions of the electronic device for radiation, improving the aggregation effect of the radiation energy and reducing the SAR value of the electronic device, on the other hand, the antenna radiators at different positions of the electronic device are not easily affected by the use environment of the electronic device at the same time, weakening the influence of the human body on the performance of the antenna device, and the stability of the antenna radiation signal can be improved.

[0100] The antenna module contained in the present application includes but is not limited to the type, number, shape, placement position and combination form of the antenna radiator 4 shown in the embodiment, for example, the antenna radiator 4 can also be a laser-engraved antenna, and those skilled in the art can design and optimize the related grounding points and multiple feeding points of the laser-engraved antenna based on the knowledge in the field of antenna design on the basis of the above-mentioned metal frame antenna or flexible circuit board antenna. Those skilled in the art can understand that the antenna module 10 can include more antenna radiators 4, and each antenna radiator 4 can include multiple feeding points. The number of feeding points on each antenna radiator 4 can be the same or different. The type of antenna radiator 4 contained in the antenna module 10 is not limited to the flexible circuit board antenna, metal frame antenna mentioned in the embodiment, but can also be a laser-engraved antenna. When the antenna module 10 includes multiple antenna radiators 4, the multiple feeding ends 3 of the power distribution network 1 can be connected to the same or different types of antenna radiators, and the number of feeding points of each antenna radiator 4 can be the same or different. When the feeding ends of the antenna module 10 are connected to different types of antenna radiators, the different far-field radiation characteristics can be utilized to form complementary or positive superposition of the radiation pattern, for example, to form complementarity in their respective disadvantageous directions (i.e. the concave part of the far-field radiation pattern), to improve the omnidirectionality of the antenna device, or to form positive superposition of the radiation pattern in a specific direction, to improve the directivity of the antenna device.

[0101] Those skilled in the art can understand that any one or more of the above-mentioned antenna radiators containing multiple feeding points can also be combined with the related single-feeding antenna radiators to form the antenna module of the present application, which can more flexibly enable the multiple feeding points to work cooperatively to form an antenna cluster, effectively improving the performance of the antenna device, thereby improving the communication performance and user experience of the electronic device.

[0102] In order to enable the antenna cluster composed of the antenna module to obtain better performance in its operating frequency range, the power distribution network can split the radio frequency signal into multiple radio frequency signals connected to the multiple feeding points of at least one antenna radiator, thereby improving the performance of the antenna module. The split radio frequency signals can be further phase adjusted. According to different adjustment requirements, the power distribution network in the antenna module can have multiple possible implementations.

[0103] Figure 18 Fig. 1 shows a schematic diagram of a power distribution network according to an embodiment of the present application. Figure 18 As shown in Fig. 1, the power distribution network 1 comprises a radio frequency end 2, a plurality of feeding ends 3 and a power distribution device 11, the first end 111 of the power distribution device 11 is connected to the radio frequency end 2, and the plurality of second ends 112 of the power distribution device 11 are connected to the plurality of feeding ends 3 respectively, the radio frequency end 2 is used to connect the radio frequency end of a radio frequency circuit, the feeding end 3 is used to connect a corresponding feeding point, and the power distribution device 11 is used to adjust the amplitude of the radio frequency signal between the first end and the plurality of second ends according to a preset power distribution parameter.

[0104] In some possible implementation manners, the feeding point corresponding to the feeding end 3 can be a plurality of feeding points corresponding to at least one antenna radiator respectively, and each antenna radiator comprises at least one feeding point.

[0105] The power distribution device 11 can split the radio frequency signal input from the first end 111 into a plurality of radio frequency signals with the same or different amplitudes and output to the second ends 112, and then output through the antenna radiators by connecting the feeding points of the antenna radiators through the corresponding feeding ends 3. In some embodiments, the power distribution device 11 is used to adjust the amplitude of the radio frequency signal between the first end 111 and the plurality of second ends 112 according to a preset power distribution parameter.

[0106] For example, in the case where the number of the second ends 112 of the power distribution device 11 is n, the preset power distribution parameter can be Ai, where i = 1 ~ n, and the power of the radio frequency signal of the jth second end 112 can be obtained by taking the preset power distribution parameter as a power distribution ratio, which can be represented as, for example,

[0107] where P0 can be the total power of the radio frequency signal of the first end 111, and Sum(Ai) can be the sum of the power distribution parameters. The present application does not limit the technical solution of obtaining the power of the radio frequency signal of the second end 112 by the preset power distribution parameter. i

[0108] In the case of different working frequencies, the preset power distribution parameters of the power distribution device 11 can be the same or different. For example, for a radio frequency signal with a working frequency of 2 GHz, the preset power distribution parameters of the power distribution devices of the four second ends 112 are (0.25, 0.25, 0.25, 0.25), and for a radio frequency signal with a working frequency of 800 MHz, the preset power distribution parameters of the power distribution devices of the four second ends 112 are (0.3, 0.3, 0.2, 0.2), and the present disclosure does not limit this.

[0109] ​In some possible implementation manners, the preset power distribution parameter of the power distribution apparatus 11 can be a fixed power distribution parameter. For example, when the antenna cluster does not need to dynamically adjust the power distribution parameter in the working frequency range, the fixed power distribution parameter can be implemented by a hardware device of the power distribution apparatus 11, the radio frequency signal input by the first end 111 is split into a plurality of radio frequency signals corresponding to the fixed power distribution parameter, and the radio frequency signals are output by the second end 112 and connected to the corresponding feeding end 3, so that the plurality of feeding ends 3 can be connected to the corresponding feeding points in the at least one antenna radiator, the plurality of feeding points work cooperatively to form the antenna cluster, and the performance of the antenna device is improved.

[0110] In another possible implementation manner, the preset power distribution parameter of the power distribution apparatus 11 can also be dynamically adjusted in response to a setting operation of a user, so that the user can adjust the power distribution parameter according to the performance of the formed antenna cluster, and the power distribution parameter can be adjusted more flexibly.

[0111] Those skilled in the art can understand that the power distribution apparatus 11 can also adjust the amplitudes of the radio frequency signals received by the plurality of second ends 112 through the feeding points, combine the adjusted radio frequency signals, and send the combined radio frequency signals to the radio frequency circuit through the first end 111, so as to realize the receiving function of the radio frequency signal.

[0112] Figure 19 Another structure of a power distribution network provided by an embodiment of the present application is shown in FIG. 2. Figure 19 As shown in FIG. 2, the power distribution network 1 further includes a first impedance matching apparatus 12, and the first end 111 of the power distribution apparatus 11 is connected to the radio frequency end 2 through the first impedance matching apparatus 12.

[0113] Specifically, the first impedance matching apparatus 12 can be a matching network (MN). In a mobile electronic device, an antenna is needed to receive and transmit a radio frequency signal, and whether the impedance between the antenna module and the radio frequency circuit is matched directly affects the performance of the antenna in receiving and transmitting the signal. Adding the first impedance matching apparatus 12 to the power distribution network 1 can reduce the signal reflection caused by the unmatched impedance, so as to improve the performance of the antenna. In some possible implementation manners, the matching network can be designed by using the reflection parameter of the antenna and the working frequency of the antenna cluster, which is not described herein again.

[0114] The self-impedance of the antenna radiator and the coupling effect between the feeding ends are usually vectors, and in general cases, the reflection parameter (S parameter) can be used to represent S mn,＝n S represents the self-impedance of the antenna radiator at the feeding position, and S mn,≠nrepresent the coupling relationship between each feed point. Therefore, the strength and direction of the coupling between the feed points will affect the beneficial effects when the antenna cluster is formed. Therefore, not only the power distribution of the radio frequency signal will affect the performance of the final antenna cluster, but also the phase of the radio frequency signal of each feed end will affect the performance of the antenna cluster.

[0115] Figure 20 A structure schematic diagram of another power distribution network provided by the embodiment of the application is shown in FIG. 3. As shown in FIG. 3, the power distribution network 1 further comprises at least one phase shift device 13, and one or more second ends 112 of the power distribution device 11 are connected to the corresponding feed end 3 through the phase shift device 13. The phase shift device 13 is used to adjust the phase of the radio frequency signal according to a preset phase shift parameter. Figure 20

[0116] For example, in the case where the number of feed ends connected to the phase shift device 13 is n, the preset phase shift parameter can be where i = 1 ~ n.

[0117] In the case of different working frequencies, the phase shift parameters of the phase shift device 13 can be the same or different, and the present disclosure does not limit this.

[0118] In some possible implementation manners, the phase shift parameter of the phase shift device 13 can be a fixed phase shift parameter. For example, when the formed antenna cluster does not need to dynamically adjust the phase shift parameter within its working frequency, the fixed phase shift parameter can be realized by connecting a fixed phase shifter on the corresponding radio frequency line, fixed phase adjustment is performed on the phase of the radio frequency signal output to the second end 112, and the radio frequency signal is output through the corresponding feed end 3 connected to the feed point, so that the plurality of feed ends can be connected to the corresponding feed point in at least one antenna radiator, so that the plurality of feed points work cooperatively to form an antenna cluster, thereby improving the performance of the antenna device.

[0119] In another possible implementation manner, the phase shift of the phase shift device 13 can also be dynamically adjusted in response to the setting operation of the user, so that the user can adjust the phase shift parameter according to the performance of the formed antenna cluster, thereby being able to more flexibly adjust the power distribution parameter.

[0120] In some embodiments, when the phase difference of the radio frequency signal of the corresponding plurality of feed points of the formed antenna cluster is a fixed value within its working frequency, the phase shift device 13 can be arranged at the m feed ends of the power distribution device, where m < n, and the phase adjustment of the phase shift device 13 of different feed ends can be the same or different. For example, in the case where the number of feed ends connected to the phase shift device 13 is n, the preset phase shift parameter can be Figure 20 ​(b) for example, the power distribution device 11 can take at least one feeding end without the phase shift device 13 as a reference phase zero point, and set the phase shift device 13 at other feeding ends, and the phase of the phase shift device 13 can be set as a phase difference value relative to the reference phase zero point respectively.

[0121] By using the technical solution, the amplitude adjustment and the phase adjustment of the radio frequency signal input from the radio frequency end can be flexibly performed through the power distribution network, so that the multiple feeding ends can be connected to the corresponding feeding points in the at least one antenna radiator, and the multiple feeding points work cooperatively to form the antenna cluster, thereby improving the performance of the antenna device.

[0122] Those skilled in the art can understand that the power distribution device 11 can also adjust the phase of the radio frequency signal received by the multiple second ends 112 through the feeding points through the phase shift device 13, and combine the adjusted radio frequency signals and send them to the radio frequency circuit through the first end 111, thereby realizing the receiving function of the radio frequency signal.

[0123] The power distribution parameters and the phase shift parameters can be collectively referred to as the weight coefficient of the power distribution network 1, the weight coefficient is a vector including power distribution and phase adjustment, and the weight coefficient of the power distribution network can flexibly perform power distribution and phase adjustment on the radio frequency signal input from the radio frequency end, so that the multiple feeding ends can be connected to the corresponding feeding points in the at least one antenna radiator, and the multiple feeding points work cooperatively to form the antenna cluster, thereby improving the performance of the antenna device.

[0124] Those skilled in the art can understand that when the power distribution network in the prior art can meet the weight coefficient setting of the antenna cluster within its working frequency, the existing power distribution network can also be selected. For example, in the case that the power of the radio frequency signal required by the multiple feeding ends 3 in the formed antenna cluster within its working frequency is equal power distribution, a common equal power distribution device can be selected as the power distribution device 11, such as a Wilkinson power distributor or a T-shaped power distributor. Further, in the case that the phase difference between the radio frequency signals required by the multiple feeding ends 3 is zero, the equal power distribution device can be directly connected to the corresponding feeding end 3 through the radio frequency line (i.e. without connecting the phase shift device 13).

[0125] Figure 21 A structure schematic diagram of another power distribution network provided by the embodiment of the application is shown as follows, Figure 21 As shown in the figure, the power distribution network 1 further includes multiple second impedance matching devices 14, and the second ends 112 of the phase shift device 13 or the power distribution device 11 are connected to the feeding ends 3 through the second impedance matching devices 14.

[0126] For example, in the case that the phase shift device 13 is connected to the second end 112 of the power distribution device 11, the phase shift device 13 can be connected to the feed end 3 through the second impedance matching device 14, or in the case that the phase shift device 13 is not connected to the second end 112 of the power distribution device 11, the second end 112 of the power distribution device 11 can be connected to the feed end 3 through the second impedance matching device 14. The second impedance matching device 14 can adjust the self-impedance of the antenna radiator, increasing the degree of freedom when the antenna cluster is formed.

[0127] By using the technical solutions described above, the power distribution network can flexibly distribute the power of the radio frequency signal input from the radio frequency end and adjust the phase of the radio frequency signal, and can also adjust the self-impedance of the antenna radiator, so that the multiple feed ends can be connected to the corresponding feed points in the at least one antenna radiator, so that the multiple feed points work cooperatively to form an antenna cluster, thereby improving the performance of the antenna device.

[0128] The power distribution network 1 of the antenna module 10 included in the present application can be simplified according to the actual needs of the antenna cluster formed. For example, in some cases, the phase of the radio frequency signal does not need to be adjusted, and the beneficial effects of forming an antenna cluster can still be obtained, at which time the power distribution network 1 can be adjusted, and the corresponding devices can be simplified or omitted, for example, the phase shift device 13 can be omitted. Figure 18 Or Figure 19 The power distribution network mentioned in the corresponding embodiment simplifies the phase shift device.

[0129] As can be understood by those skilled in the art, part or all of the functions of the power distribution network 1 of the antenna module 10 included in the present application can be replaced by a chip with corresponding functions, at which time the antenna cluster formed can achieve similar or the same beneficial effects.

[0130] Figure 22 A schematic diagram of an electronic device provided by an embodiment of the present application is shown. As shown in Figure 22 The electronic device 100 includes the antenna module 10 of the first aspect described above.

[0131] The electronic device provided by the embodiment of the present application can be an electronic device such as a mobile phone, a tablet computer, a wearable device, a vehicle-mounted device, an augmented reality (AR) device, a virtual reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), etc. The present disclosure does not limit the specific type of electronic device.

[0132] In some embodiments, the antenna radiator included in the antenna module 10 in the electronic device 100 can be a metal frame antenna, a flexible circuit board antenna, or a laser etching antenna, and the present disclosure does not limit the type of the antenna radiator.

[0133] The antenna module of any one of the first aspect can be connected to at least one antenna radiator through a plurality of feeding points, so that the plurality of feeding points work cooperatively to form an antenna cluster, which can effectively improve the performance of the antenna device. The above-mentioned antenna module can be equivalent to an independent antenna device, which is connected to the radio frequency port of the electronic device and does not affect the existing radio frequency architecture.

[0134] By using the above technical solutions, the performance of the antenna device can be improved by using the antenna module forming an antenna cluster without changing the radio frequency architecture of the electronic device, thereby improving the communication performance and user experience of the electronic device.

[0135] In summary, the above only describes the preferred embodiments of the present application, and does not limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0136] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0137] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An antenna module, characterized by The device includes a power distribution network and at least one antenna radiator. Each antenna radiator includes multiple feed points. Multiple feed terminals of the power distribution network are used to connect to the corresponding multiple feed points in the antenna radiator. The power distribution network is used to distribute radio frequency signals to the corresponding multiple feed points in the antenna radiator. The antenna radiator includes a first feed point and a second feed point. When the self impedance of each feed connected to the antenna radiator is less than or equal to a first preset impedance threshold, the distance between the first feed point and the second feed point is greater than a third preset distance threshold. or, When the self-impedance of each feed connected to the antenna radiator is greater than a second preset impedance threshold, the distance between the first feed point and the second feed point is less than a fourth preset distance threshold.

2. The antenna module of claim 1, wherein, The antenna radiator includes an antenna radiator with a grounding point and an antenna radiator without a grounding point. The size of the antenna radiator without a grounding point is larger than the size of the antenna radiator with a grounding point.

3. The antenna module of claim 1, wherein, At least one of the antenna radiators also includes a grounding point.

4. The antenna module of claim 3, wherein, The antenna radiator includes at least two radiating stubs, the at least two radiating stubs having at least one intersection, and the grounding point is located in any of the following positions: The intersection of the at least two radial branches; The main radiating branch of the at least two radiating branches, wherein the main radiating branch is the radiating branch of the antenna radiator that supports the lowest operating frequency; The edge of one of the at least two radial branches, the edge being the end of the radial branch furthest from the junction.

5. The antenna module of claim 3, wherein, The distance between the first power supply point and the grounding point is less than a first preset distance threshold. The second power supply point is located between the first power supply point and the grounding point, and the distance between the second power supply point and the first power supply point is less than a second preset distance threshold. The second preset distance threshold is less than the first preset distance threshold.

6. The antenna module of claim 3, wherein, The antenna radiator includes a third feed point and a fourth feed point, which are located on both sides of the grounding point. The distance between the third feed point and the fourth feed point is less than a fifth preset distance threshold.

7. The antenna module of claim 3, wherein, The antenna radiator includes a first radiating stub and a second radiating stub. The grounding point is located at the edge of the first radiating stub. The fifth feed point is located at the edge of the second radiating stub and the distance between the fifth feed point and the edge of the second radiating stub is less than a sixth preset distance threshold. The sixth feed point is located at the first radiating stub and is located between the fifth feed point and the grounding point.

8. The antenna module of claim 3, wherein, The antenna radiator includes a third radiating stub and a fourth radiating stub. The grounding point is located at the intersection of the third radiating stub and the fourth radiating stub. The seventh feed point is located on the third radiating stub and the distance between it and the edge of the third radiating stub is less than a seventh preset distance threshold. The eighth feed point is located on the fourth radiating stub and the distance between it and the edge of the fourth radiating stub is less than an eighth preset distance threshold.

9. The antenna module of any one of claims 1 to 8, wherein, The power distribution network includes: a radio frequency (RF) terminal, multiple feed terminals, and a power distribution device. A first terminal of the power distribution device is connected to the RF terminal, and multiple second terminals of the power distribution device are correspondingly connected to the multiple feed terminals. The RF terminal is used to connect to the RF terminal of the RF circuit, and the feed terminals are used to connect to corresponding feed points. The power distribution device is used to adjust the amplitude of the RF signal between the first terminal and the multiple second terminals according to preset power distribution parameters.

10. The antenna module of claim 9, wherein, The power distribution network further includes a first impedance matching device, and the first end of the power distribution device is connected to the radio frequency end through the first impedance matching device.

11. The antenna module according to claim 10, characterized in that, The power distribution network further includes at least one phase shifting device. One or more of the second terminals of the power distribution device are connected to the corresponding feed terminals through the phase shifting device. The phase shifting device is used to adjust the phase of the radio frequency signal according to preset phase shifting parameters.

12. The antenna module according to claim 11, characterized in that, The power distribution network also includes multiple second impedance matching devices, and the second end of the phase shifting device or the power distribution device is connected to the feed end through the second impedance matching device.

13. An electronic device, characterized in that, The antenna module includes any one of claims 1 to 12.

14. The electronic device according to claim 13, characterized in that, The antenna radiator of the antenna module is a metal frame antenna, a flexible circuit board antenna, or a laser-engraved antenna.

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