Electronic device

Abstract

The invention discloses electronic equipment. The electronic equipment comprises a first radiator, a second radiator, a third radiator, a first feed source and a second feed source, the first radiator is arranged on the top edge, and the second radiator and the third radiator are arranged on the side edge; a first feeding point is arranged between the connecting end and the free end of the first radiator, and the first feeding point is connected with a first feed source; the first grounding end of the second radiator is provided with a first grounding point, a second feeding point is arranged between the first coupling end and the first grounding end, the second feeding point is connected with the first feed source, and the connecting end is connected with the first grounding end; a third feeding point is arranged between the second coupling end and the second grounding end, the third feeding point is connected with a second feed source, and an electric coupling gap is formed between the second coupling end and the first coupling end; the first radiator and the second radiator form a first antenna, and the first antenna supports signal transceiving of a first frequency band; and the second radiator and the third radiator form a second antenna, and the second antenna supports signal transceiving of a second frequency band.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communication technologies, and more particularly, to an electronic device. Background Art

[0002] With the rapid development of information technology, electronic devices (such as mobile phones) have become increasingly popular. And as the functions of electronic devices become more and more powerful, their transmission power has also become stronger, resulting in radiation effects on the human body. The radiation effects generated by electronic devices are usually measured by the specific absorption rate (SAR). The larger the SAR value, the greater the impact on the human body; conversely, the smaller the impact.

[0003] Currently, the reduction of the SAR value is mainly achieved by reducing the radio frequency conduction power of the radio frequency system. However, a lower transmission power will affect the communication quality and the user experience is poor. Summary of the Invention

[0004] Embodiments of the present application provide an electronic device. The electronic device involved in the embodiments of the present application will be introduced below.

[0005] In a first aspect, there is provided an electronic device, including: a first radiator, a second radiator, a third radiator, a first feeder, and a second feeder; the electronic device has a top edge and a side edge that are perpendicular to each other, the first radiator is disposed on the top edge, and the second radiator and the third radiator are disposed on the side edge; the first radiator includes a connection end and a free end, and a first feeding point is disposed between the connection end and the free end, and the first feeding point is used to connect the first feeder; the second radiator includes a first grounding end and a first coupling end, a first grounding point is disposed on the first grounding end, the first grounding point is used for grounding, a second feeding point is disposed between the first coupling end and the first grounding end, and the second feeding point is used to connect the first feeder, and the connection end is connected to the first grounding end; the third radiator includes a second grounding end and a second coupling end, a second grounding point is disposed on the second grounding end, the second grounding point is used for grounding, a third feeding point is disposed between the second coupling end and the second grounding end, and the third feeding point is used to connect the second feeder, and an electrical coupling gap is formed between the second coupling end and the first coupling end; the first radiator and the second radiator form a first antenna, and the first antenna generates a first resonance mode under the excitation of the first feeder to support signal transceiver of the first frequency band; the second radiator and the third radiator form a second antenna, and the second antenna generates a second resonance mode under the excitation of the second feeder to support signal transceiver of the second frequency band.

[0006] An embodiment of the present application provides an electronic device, including: a first radiator, a second radiator, a third radiator, a first feeder, and a second feeder; the electronic device has a top edge and a side edge that are perpendicular to each other, the first radiator is disposed on the top edge, and the second radiator and the third radiator are disposed on the side edge; the first radiator includes a connection end and a free end, and a first feeding point is disposed between the connection end and the free end, and the first feeding point is used to connect the first feeder; the second radiator includes a first grounding end and a first coupling end, a first grounding point is disposed on the first grounding end, the first grounding point is used for grounding, a second feeding point is disposed between the first coupling end and the first grounding end, and the second feeding point is used to connect the first feeder, and the connection end is connected to the first grounding end; the third radiator includes a second grounding end and a second coupling end, a second grounding point is disposed on the second grounding end, the second grounding point is used for grounding, a third feeding point is disposed between the second coupling end and the second grounding end, and the third feeding point is used to connect the second feeder, and an electrical coupling gap is formed between the second coupling end and the first coupling end; the first radiator and the second radiator form a first antenna, and the first antenna generates a first resonance mode under the excitation of the first feeder to support signal transceiver of a first frequency band; the second radiator and the third radiator form a second antenna, and the second antenna generates a second resonance mode under the excitation of the second feeder to support signal transceiver of a second frequency band. Compared with a conventional solution in which only the first radiator forms the first antenna to support signal transceiver of the first frequency band, in this solution, the first antenna (such as a Wi-Fi 5G antenna) multiplexes the second radiator of the second antenna (such as a medium and high frequency antenna), and the first radiator and the second radiator jointly support signal transceiver of the first frequency band under the excitation of the first feeder, so that the current on the first radiator can be dispersed, and further the SAR hot spots are dispersed, and the purpose of reducing the SAR value can be achieved while ensuring the antenna performance. Description of the Drawings

[0007] Figure 1 is a schematic structural diagram of the electronic device provided by the embodiment of the present application.

[0008] Figure 2 is Figure 1 another possible schematic structural diagram of the electronic device shown in

[0009] Figure 3 is Figure 2 another possible schematic structural diagram of the electronic device shown in

[0010] Figure 4 is Figure 3 another possible schematic structural diagram of the electronic device shown in

[0011] Figure 5 is Figure 4 another possible schematic structural diagram of the electronic device shown in

[0012] Figure 6 It is a schematic diagram of the comparison of the antenna efficiency at the Wi-Fi 2.4G frequency band before and after introducing the second radiator provided by the embodiment of the present application.

[0013] Figure 7 It is a schematic diagram of the comparison of the antenna efficiency at the Wi-Fi 5G frequency band before and after introducing the second radiator provided by the embodiment of the present application.

[0014] Figure 8 It is a schematic diagram of the test of the 5mm human body SAR at 5.2GHz before introducing the second radiator provided by the embodiment of the present application.

[0015] Figure 9 It is a schematic diagram of the test of the 5mm human body SAR at 5.2GHz after introducing the second radiator provided by the embodiment of the present application.

[0016] Figure 10 It is a schematic diagram of the test of the 5mm human body SAR at 5.8GHz before introducing the second radiator provided by the embodiment of the present application.

[0017] Figure 11 It is a schematic diagram of the test of the 5mm human body SAR at 5.8GHz after introducing the second radiator provided by the embodiment of the present application.

[0018] Figure 12 It is a schematic diagram of the radiation pattern of the first antenna at 5.2GHz before introducing the second radiator provided by the embodiment of the present application.

[0019] Figure 13 It is a schematic diagram of the radiation pattern of the first antenna at 5.2GHz after introducing the second radiator provided by the embodiment of the present application.

[0020] Figure 14 It is a schematic diagram of the radiation pattern of the first antenna at 5.8GHz before introducing the second radiator provided by the embodiment of the present application.

[0021] Figure 15 It is a schematic diagram of the radiation pattern of the first antenna at 5.8GHz after introducing the second radiator provided by the embodiment of the present application.

[0022] Figure 16 is Figure 1 Another possible structural schematic diagram of the electronic device shown in Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0024] With the rapid development of information technology, electronic devices (such as mobile phones) have become increasingly popular. Moreover, as the functions of electronic devices become more powerful, their transmission power has also become stronger, resulting in radiation effects on the human body. The radiation effects generated by electronic devices are usually measured by SAR. The larger the SAR value, the greater the impact on the human body; conversely, the smaller the impact.

[0025] Currently, there are mainly two solutions for low-SAR design. One solution is to reduce the SAR value by reducing the radio-frequency conduction power of the radio-frequency system. However, the lower transmission power will affect the communication quality and the user experience is poor. Another solution is to choose to reduce the radiation power when the human body is close to the electronic device and not perform power reduction processing when the human body is far from the electronic device. However, when the human body is close to the electronic device, it will still have a relatively large impact on the radiation performance of the antenna. Therefore, how to ensure that the impact on the radiation performance is not significant and the SAR value is relatively low has always been a difficult problem in the design of electronic device antennas.

[0026] To solve the above problems, a first radiator, a second radiator, a third radiator, a first feeder, and a second feeder are provided; the electronic device has a top edge and a side edge that are perpendicular to each other. The first radiator is disposed on the top edge, and the second radiator and the third radiator are disposed on the side edge; the first radiator includes a connection end and a free end, and a first feeding point is provided between the connection end and the free end, and the first feeding point is used to connect the first feeder; the second radiator includes a first grounding end and a first coupling end, a first grounding point is provided at the first grounding end, the first grounding point is used for grounding, a second feeding point is provided between the first coupling end and the first grounding end, and the second feeding point is used to connect the first feeder, and the connection end is connected to the first grounding end; the third radiator includes a second grounding end and a second coupling end, a second grounding point is provided at the second grounding end, the second grounding point is used for grounding, a third feeding point is provided between the second coupling end and the second grounding end, and the third feeding point is used to connect the second feeder, and an electrical coupling gap is formed between the second coupling end and the first coupling end; the first radiator and the second radiator form a first antenna, and the first antenna generates a first resonance mode under the excitation of the first feeder to support the signal transmission and reception of the first frequency band; the second radiator and the third radiator form a second antenna, and the second antenna generates a second resonance mode under the excitation of the second feeder to support the signal transmission and reception of the second frequency band. Compared with the conventional solution in which only the first radiator forms the first antenna to support the signal transmission and reception of the first frequency band, in this solution, the first antenna (such as a Wi-Fi 5G antenna) multiplexes the second radiator of the second antenna (such as a medium-high frequency antenna), and the first radiator and the second radiator jointly support the signal transmission and reception of the first frequency band under the excitation of the first feeder, so that the current on the first radiator can be dispersed, and thus the SAR hot spots can be dispersed. On the premise of ensuring the antenna performance, the purpose of reducing the SAR value can be achieved.

[0027] The following combines Figure 1A detailed introduction to the electronic device 100 provided in the embodiments of the present application is given. As Figure 1 shown, the electronic device 100 includes a first radiator 110, a second radiator 120, a third radiator 130, a first feeder 103, and a second feeder 104.

[0028] The electronic device 100 has a top edge and a side edge that are perpendicular to each other. The first radiator 110 is disposed on the top edge, and the second radiator 120 and the third radiator 130 are disposed on the side edge. The first radiator 110 is connected to the second radiator 120, and a grounding point is provided between the first radiator 110 and the second radiator 120.

[0029] The first radiator 110 includes a connection end 113 and a free end 112. A first feeding point 111 is provided between the connection end 113 and the free end 113, and the first feeding point 111 is used to connect to the first feeder 103; the second radiator 120 includes a first grounding end 121 and a first coupling end 122. A first grounding point 123 is provided at the first grounding end 121, and the first grounding point 123 is used for grounding. A second feeding point 124 is provided between the first coupling end 122 and the first grounding end 121, and the second feeding point 124 is used to connect to the first feeder 103. The connection end 113 of the first radiator 110 is connected to the first grounding end 121 of the second radiator 120; the third radiator 130 includes a second grounding end 131 and a second coupling end 132. A second grounding point 133 is provided at the second grounding end 131, and the second grounding point 133 is used for grounding. A third feeding point 134 is provided between the second coupling end 132 and the second grounding end 131, and the third feeding point 134 is used to connect to the second feeder 104. An electric coupling gap 125 is formed between the second coupling end 132 and the first coupling end 122;

[0030] The first radiator 110 and the second radiator 120 form a first antenna 101. The first antenna 101 generates a first resonance mode under the excitation of the first feeder 103 to support signal transceiver of the first frequency band; the second radiator 120 and the third radiator 130 form a second antenna 102. The second antenna 102 generates a second resonance mode under the excitation of the second feeder 104 to support signal transceiver of the second frequency band.

[0031] In some embodiments, the second radiator 120 generates a second resonance mode under the excitation of the second feeder 104 through the electric coupling gap 125 to support signal transceiver of the second frequency band; the third radiator 130 generates a third resonance mode under the excitation of the second feeder 104 to support signal transceiver of the third frequency band.

[0032] In some embodiments, the first frequency band may be the Wi-Fi 5G band, the second frequency band may be a mid-high frequency band. For example, the second frequency band may be the N78 band; the third frequency band may be a mid-high frequency band. For example, the third frequency band may be a mid-high frequency band of the LTE / NR network such as the B1 band, B3 band, B7 band, or B41 band.

[0033] In some embodiments, the first feeding point 111 is close to the free end 112.

[0034] In some embodiments, the first feeder 103 may include, but is not limited to, a radio frequency transceiver chip and a radio frequency front-end circuit. The first feeder 103 may be disposed on the antenna small board or the main board of the electronic device 100 (not shown in the figure). The first feeder 103 can be used, for example, to at least provide a radio frequency signal corresponding to the first frequency band. The first frequency band may be Wi-Fi 5G. Of course, the first feeder 103 can also be used to provide a radio frequency signal in the Wi-Fi 2.4G band.

[0035] In some embodiments, the second feeder 104 may include, but is not limited to, a radio frequency transceiver chip and a radio frequency front-end circuit. The second feeder 104 may be disposed on the antenna small board or the main board of the electronic device 100 (not shown in the figure). The second feeder 104 can be used, for example, to at least provide radio frequency signals corresponding to the second frequency band and the third frequency band. The second frequency band may be the N78 band, and the third frequency band includes, but is not limited to: the B1 band, B3 band, B7 band, B41 band.

[0036] To deepen the understanding of the electronic device 100 in the embodiments of the present application, the following combines Figures 2 - 5 to give a more detailed example of the electronic device 100.

[0037] Figure 2 For Figure 1 is another possible structural schematic diagram of the electronic device 100 shown in. As Figure 2 shown, the electronic device 100 further includes a first tuning circuit 140. The first end (port 1) of the first tuning circuit 140 is connected to the first feeder 103, the second end (port 2) of the first tuning circuit 140 is connected to the first feeding point 111, the third end (port 3) of the first tuning circuit 140 is connected to the second feeding point 124, and the first tuning circuit 140 is used to adjust the resonance mode of the first antenna 101. It should be understood that port 1 may be the input port of the first tuning circuit 140, and port 2 and port 3 may be the two output ports of the first tuning circuit 140. The first tuning circuit 140 can adjust the resonance mode of the first radiator 110 through port 2, and the first tuning circuit 140 can adjust the resonance mode of the second radiator 120 through port 3.

[0038] Figure 3 ForFigure 2 Another possible structural schematic diagram of the electronic device 100 shown in Figure 3 As shown, the first tuning circuit 140 may include a first matching circuit 141 and a second matching circuit 142. One end of the first matching circuit 141 is connected to the first feeder 103, and the other end of the first matching circuit 141 is connected to the first feeding point 111. The first matching circuit 141 is used to adjust the resonance mode of the first radiator 110; One end of the second matching circuit 142 is connected to the first feeder 103, and the other end of the second matching circuit 142 is connected to the second feeding point 124. The second matching circuit 142 is used to adjust the resonance mode of the second radiator 120.

[0039] Figure 4 For Figure 3 Another possible structural schematic diagram of the electronic device 100 shown in Figure 4 As shown, the first tuning circuit 140 further includes a band-pass filter circuit 143. One end of the band-pass filter circuit 143 is connected to the first feeder 103, and the other end of the band-pass filter circuit 143 is connected to one end of the second matching circuit 142. The band-pass filter circuit 143 is used to block the signals of frequency bands other than the first frequency band from passing through.

[0040] It can be understood that under the excitation of the second feeder 104, the second radiator 120 is mainly used to support the signal transceiver of the second frequency band (such as the N78 frequency band). Under the excitation of the first feeder 103, the second radiator 120 can also be used to support the signal transceiver of the Wi-Fi 2.4G and Wi-Fi 5G frequency bands. Exemplarily, assuming that the first frequency band is the Wi-Fi 5G frequency band, the equivalent impedance of the band-pass filter circuit 143 at the Wi-Fi 5G frequency band is relatively small (similar to a conducting state), allowing the frequency band signals of the Wi-Fi 5G frequency band to pass through, and the equivalent impedance at the Wi-Fi 2.4G, N78 and other medium-high frequency bands is relatively large (similar to an open state), blocking the frequency band signals of the Wi-Fi 2.4G, N78 and other medium-high frequencies from passing through.

[0041] It can be understood that if the second radiator 120 is simultaneously used for signal transmission and reception in the Wi-Fi 2.4G and N78 frequency bands, the isolation requirement between antennas cannot be met, resulting in mutual interference between the Wi-Fi 2.4G frequency band signal and the N78 frequency band signal. Since there is a band-pass filter circuit 143 to prevent the Wi-Fi 2.4G radio frequency signal from flowing into the second radiator 120, when the first feeder 103 generates a Wi-Fi 2.4G radio frequency signal, the Wi-Fi 2.4G current is mainly concentrated on the first radiator 110. By setting the band-pass filter circuit 143 in the embodiment of the present application, it helps to improve the isolation of the N78 frequency band signal in the first antenna 101 and the second antenna 102. At the same time, the band-pass filter circuit 143 allows the Wi-Fi 5G radio frequency signal to flow into the second radiator 120. When the first feeder 103 generates a Wi-Fi 5G radio frequency signal, the Wi-Fi 5G current can be distributed on both the first radiator 110 and the second radiator 120, thereby reducing the SAR value of the Wi-Fi 5G signal.

[0042] Continue to refer to Figure 4 , in some embodiments, the first tuning circuit 140 further includes a phase shifter circuit 144. One end of the phase shifter circuit 144 is connected to the other end of the band-pass filter circuit 143, and the other end of the phase shifter circuit 144 is connected to one end of the second matching circuit 142. The phase shifter circuit 144 is used to adjust the radiation direction of the second radiator 120. By setting the phase shifter circuit 144 in the embodiment of the present application, the radiation magnetic field of the first antenna 101 can be adjusted, so that the electromagnetic fields radiated by the first radiator 110 and the second radiator 120 of the first antenna 101 have a specific relative phase. Further, the antenna radiation pattern of the first antenna 101 can be adjusted to have the largest spatial power coverage range.

[0043] Figure 5 For Figure 4 Another possible structural schematic diagram of the electronic device 100 shown in Figure 5 As shown, the first matching circuit 141 includes a first capacitor C1. One end of the first capacitor C1 is connected to the first feeder 103, and the other end of the first capacitor C1 is connected to the first feeding point 111. The first feeder 103 can couple and feed the first radiator 110 through the first capacitor C1. Thus, the first matching circuit and the first radiator 110 can form a left-handed antenna.

[0044] The second matching circuit 142 includes a first inductor L1 and a second capacitor C2. One end of the first inductor L1 is connected to the first feeder 103, and the other end of the first inductor L1 is connected to the second feeding point 124. One end of the second capacitor C2 is connected to one end of the first inductor L1, and the other end of the second capacitor C2 is grounded. The band-pass filter circuit 143 includes a second inductor L2 and a third capacitor C3. One end of the third capacitor C3 is connected to the first feeder 103, the other end of the third capacitor C3 is connected to one end of the second inductor L2, and the other end of the second inductor L2 is connected to one end of the first inductor L1. The phase-shifting circuit 144 includes a third inductor L3 and a fourth capacitor C4. One end of the fourth capacitor C4 is connected to the other end of the second inductor L2, the other end of the fourth capacitor C4 is connected to one end of the first inductor L1, one end of the third inductor L3 is connected to one end of the fourth capacitor C4, and the other end of the third inductor L3 is grounded.

[0045] It should be noted that in the embodiments of the present application, the capacitance value of the capacitor can be set according to requirements, and the inductance value of the inductor in the embodiments of the present application can also be set according to requirements.

[0046] Refer back to Figure 2 , in some embodiments, the electronic device 100 further includes a second tuning circuit 150. One end of the second tuning circuit 150 is connected to the second feeder 104, the other end of the second tuning circuit 150 is connected to the third feeding point 134, and the second tuning circuit 150 is used to adjust the resonance mode of the second antenna 102. Through the second tuning circuit 150, the third radiator 130 can support signal transceiver in multiple frequency bands (such as B1 frequency band, B3 frequency band, B7 frequency band or B41 frequency band, etc.). It should be understood that the second radiator 120 in the second antenna 102 mainly performs signal transceiver in the second frequency band through the parasitic coupling of the electric coupling gap 125. For example, the second radiator 120 can be excited to generate N78 frequency band signals in a parasitic coupling manner.

[0047] Refer back to Figure 5, the second tuning circuit 150 includes a fourth inductor L4, a fifth capacitor C5, a first switching device 151, and a plurality of parallel inductors 152 with different inductance values. One end of the fifth capacitor C5 is connected to the second feeder 104, and the other end of the fifth capacitor C5 is connected to the third feeding point 134. One end of the fourth inductor L4 is connected to one end of the fifth capacitor C5, and the other end of the fourth inductor L4 is grounded. One end of the first switching device 151 is connected to the other end of the fifth capacitor C5, and the other end of the first switching device 151 is connected to one end of the plurality of parallel inductors 152, and the other ends of the plurality of parallel inductors 152 are grounded; the plurality of parallel inductors 152 with different inductance values may mean that the inductance values of some or all of the inductors in the plurality of parallel inductors 152 are different. When the first switching device 151 connects one or more inductors in the plurality of parallel inductors 152, the third radiator 130 can be used to generate a corresponding resonance mode. As an example, if the inductance values of all the inductors in the plurality of parallel inductors 152 are different, if each inductor in the plurality of parallel inductors 152 is connected separately, the third radiator 130 will generate a resonance mode correspondingly. In the present application, by switching different inductors in the plurality of parallel inductors 152 through the first switching device 151, different frequency bands can be switched (that is, the third radiator 130 can support signal transmission and reception in different frequency bands). Of course, it is also possible to connect a plurality of inductors in the plurality of parallel inductors 152 through the first switching device 151. In this way, more resonance modes can be generated by the plurality of parallel inductors 152 for the third radiator 130. In some embodiments, the first switching device 151 may be, for example, a single-pole four-throw switch or a double-pole four-throw switch, etc., and the present application does not make specific limitations on this.

[0048] Continue to refer to Figure 5 , in some embodiments, the currents of the first resonance mode on the first radiator 110 and the second radiator 120 are orthogonal currents. Exemplarily, the current direction of the first resonance mode on the first radiator 110 is from the first feeding point 111 to the free end 112, and the current direction of the first resonance mode on the second radiator 120 is from the first grounding end 121 to the first coupling end 122.

[0049] It can be understood that the SAR value of the antenna is strongly related to the magnitude of the antenna current density. That is to say, the antenna SAR hot spots of the electronic device are basically concentrated near the position of the maximum current on the antenna.

[0050] It should be noted that in the conventional solution, the first antenna 101 is usually formed by the first radiator 110. The radiation current of the first antenna 101 will be concentrated on the first radiator 110, forming a strong SAR hot spot, which will cause the SAR value to exceed the standard. At present, the reduction of the SAR value is mainly achieved by reducing the radio frequency conduction power of the radio frequency system. However, the lower transmission power will affect the communication quality and the user experience is poor.

[0051] As can be seen from the above description, in the embodiment of the present application, the first antenna 101 (such as a Wi-Fi 5G antenna) multiplexes the second radiator 120 of the second antenna 102 (such as a medium and high frequency antenna). The first radiator 110 and the second radiator 120 jointly support the signal transceiver of the first frequency band (such as the Wi-Fi 5G frequency band) under the excitation of the first feeder 103, so as to disperse the current on the first radiator 110, and further disperse the SAR hot spot, achieving the purpose of reducing the SAR value. At the same time, the antenna performance of the first antenna 101 can be basically guaranteed.

[0052] In order to verify the change of the antenna performance of the first antenna 101 before introducing the second radiator 120 (conventional solution) and after introducing the second radiator 120 (this solution) into the first antenna 101, the following will be combined with Figures 6 - 15 for illustration by way of example.

[0053] Figure 6 is a schematic diagram of the comparison of the antenna efficiency at the Wi-Fi 2.4G frequency band before and after introducing the second radiator 120 into the first antenna 101. Refer to Figure 6 , at the Wi-Fi 2.4G frequency band, the antenna efficiency of this solution (after introducing the second radiator 120) is slightly lower than that of the conventional solution (before introducing the second radiator 120). Compared with the conventional solution, the antenna efficiency in this solution is reduced by about 0.2 dB. The radiation performance of the first antenna 101 can be basically guaranteed.

[0054] Figure 7 is a schematic diagram of the comparison of the antenna efficiency of the Wi-Fi 5G frequency band before and after introducing the second radiator 120 into the first antenna 101. Refer to Figure 7 , at the Wi-Fi 5G frequency band, the system radiation efficiency of this solution (after introducing the second radiator 120) is slightly higher than that of the conventional solution (before introducing the second radiator 120). The total system efficiency after introducing the second radiator 120 is slightly lower than the total system efficiency before introducing the second radiator 120. Exemplarily, at 5.2 GHz, the total system efficiency after introducing the second radiator 120 is -2.807 dB, that is, Figure 7 the point 3 (5.2, -2.807) inFigure 7 Point 1 (5.2, -2.4654) in; at 5.8 GHz, the total system efficiency after introducing the second radiator 120 is -2.9237 dB, that is Figure 7 Point 4 (5.8, -2.807) in, the total system efficiency before introducing the second radiator 120 is -2.2004 dB, that is Figure 7 Point 1 (5.8, -2.2004) in.

[0055] It should be noted that the radiation efficiency of the system after introducing the second radiator 120 in the embodiments of the present application is slightly higher than that of the system before introducing the second radiator 120. However, the total system efficiency after introducing the second radiator 120 is slightly lower than that of the system before introducing the second radiator 120. This is mainly due to the poor impedance matching and large standing wave ratio after introducing the second radiator 120.

[0056] Figure 8 is a test schematic diagram of the 5 mm human SAR at 5.2 GHz for the conventional scheme (before introducing the second radiator 120 in the first antenna 101). As Figure 8 shown, the maximum value of the 5 mm human SAR of the conventional scheme at 5.2 GHz is 0.456751 W / kg.

[0057] Figure 9 is a test schematic diagram of the 5 mm human SAR at 5.2 GHz for this scheme (after introducing the second radiator 120 in the first antenna 101). As Figure 9 shown, the maximum value of the 5 mm human SAR of this scheme at 5.2 GHz is 0.300876 W / kg.

[0058] By comparing Figure 8 and Figure 9 , it can be seen that compared with the conventional scheme, the 5 mm human SAR of the first antenna 101 in this scheme is reduced by about 0.156 W / kg. That is to say, the 5 mm human SAR value of this scheme at 5.2 GHz is equivalent to the SAR value corresponding to a reduction of about 1.8 dB in the transmission power of the conventional scheme.

[0059] Figure 10 is a test schematic diagram of the 5 mm human SAR at 5.8 GHz for the conventional scheme (before introducing the second radiator 120 in the first antenna 101). As Figure 10 shown, the maximum value of the 5 mm human SAR of the conventional scheme at 5.8 GHz is 0.565935 W / kg.

[0060] Figure 11This is a schematic diagram of the test of the 5mm human SAR at 5.8GHz after introducing the second radiator 120 into the first antenna 101 in this solution. As Figure 11 shown, the maximum value of the 5mm human SAR of this solution at 5.8GHz is 0.399608W / kg.

[0061] By comparing Figure 10 and Figure 11 , it can be seen that compared with the conventional solution, the 5mm human SAR of the first antenna 101 in this solution is reduced by about 0.166W / kg. That is to say, the 5mm human SAR value of this solution at 5.8GHz is equivalent to the SAR value corresponding to the conventional solution after reducing the transmit power by about 1.5dB.

[0062] Figure 12 This is a schematic diagram of the radiation pattern of the first antenna 101 at 5.2GHz in the conventional solution (before introducing the second radiator 120 into the first antenna 101). As Figure 12 shown, the system radiation efficiency of the first antenna 101 in the conventional solution at 5.2GHz is -1.434dB, the system total efficiency is -2.457dB, and the radiation direction gain is 4.594dBi.

[0063] Figure 13 This is a schematic diagram of the radiation pattern of the first antenna 101 at 5.2GHz in this solution (after introducing the second radiator 120 into the first antenna 101). As Figure 13 shown, the system radiation efficiency of the first antenna 101 in this solution at 5.2GHz is -1.154dB, the system total efficiency is -2.808dB, and the radiation direction gain is 3.755dBi.

[0064] By comparing Figure 12 and Figure 13 , it can be seen that compared with the conventional solution, the system radiation efficiency of this solution is slightly higher than that of the conventional solution, the system total efficiency of this solution is slightly lower than that of the conventional solution, and the radiation directivity of this solution is lower than that of the conventional solution. That is to say, this solution can basically ensure the radiation efficiency of the first antenna 101, and this solution reduces the directivity of the first antenna 101, and the radiation pattern is more balanced.

[0065] Figure 14 This is a schematic diagram of the radiation pattern of the first antenna 101 at 5.8GHz in the conventional solution (before introducing the second radiator 120 into the first antenna 101). As Figure 14 shown, the system radiation efficiency of the first antenna 101 in the conventional solution at 5.8GHz is -1.544dB, the system total efficiency is -2.457dB, and the radiation direction gain is 4.594dBi.

[0066] Figure 15 It is a schematic diagram of the radiation pattern of the first antenna 101 at 5.8 GHz after introducing the second radiator 120 into the first antenna 101 in this solution. As Figure 15 shown, the system radiation efficiency of the first antenna 101 in this solution at 5.8 GHz is -1.560 dB, the total system efficiency is -2.992 dB, and the radiation direction gain is 3.305 dBi.

[0067] By comparing Figure 14 and Figure 15 , it can be seen that, compared with the conventional solution, the system radiation efficiency of this solution is basically the same as that of the conventional solution, the total system efficiency of this solution is slightly lower than that of the conventional solution, and the radiation directivity of this solution is lower than that of the conventional solution. That is to say, this solution can basically ensure the radiation efficiency of the first antenna 101, and this solution reduces the directivity of the first antenna 101, and the radiation pattern is more balanced.

[0068] Figure 16 is Figure 1 another possible structural schematic diagram of the electronic device 100 shown in Figure 16 . As

[0069] shown, the first antenna 101 is located at the upper left corner or the upper right corner of the electronic device 100, and the second antenna 102 is located on the side where the first antenna 101 is located.

[0070] It should be noted that the "upper" in the above upper left corner or upper right corner may refer to the upper part when the electronic device 100 is held vertically.

[0071] It should be understood that the electronic device 100 may further include a rear camera 107, and of course may also include related devices such as a battery and a display screen. This application does not make specific limitations on this.

[0072] In some embodiments, the electronic device 100 includes a metal frame 106, and the first radiator 110, the second radiator 120, and the third radiator 130 are formed by grooving a part of the frame of the metal frame. It can be understood that the first radiator 110 and the second radiator 120 are part of the metal frame, and the first radiator 110 and the second radiator 120 are connected together.

[0073] Refer back toFigure 5 , in some embodiments, the electronic device 100 includes a middle frame 105, and the ground point of the electronic device 100 is connected to the middle frame 105. The ground point of the electronic device 100 is grounded by connecting the middle frame 105.

[0074] In some embodiments, the first radiator 110, the second radiator 120, and the third radiator 130 may be the same or different. For example, the first radiator 110 may be a metal frame with good electrical conductivity, or a flexible printed circuit (FPC) or a laser direct structuring (LDS). The second radiator 120 may be a metal frame, FPC, or LDS. The third radiator 130 may be a metal frame, FPC, or LDS.

[0075] The electronic device 100 in the embodiments of the present application may be any type of electronic device with wireless communication functions. The electronic device may be a portable mobile terminal or a handheld mobile terminal. For example, the electronic device may be a smart phone, a tablet computer (Pad), a personal digital assistant, etc., and the present application does not make specific limitations thereon.

[0076] It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0077] It should be understood that the connection in the embodiments of the present application may refer to a direct connection or an indirect connection, and the connection in the embodiments of the present application may refer to a communication connection.

[0078] It should be understood that the term " / " in this article generally represents an "or" relationship between the associated objects before and after. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0079] It should be understood that in various embodiments of the present application, the magnitudes of the sequence numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0080] In several embodiments provided by this application, it should be understood that the disclosed systems and devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in electrical, mechanical or other forms.

[0081] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0082] In addition, each functional unit in various embodiments of this application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0083] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of this application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, a computer, a server or a data center to another website, a computer, a server or a data center in a wired manner (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or a wireless manner (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or a data center that includes one or more available media integrated. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (DVD)) or a semiconductor medium (for example, a solid state disk (SSD)), etc.

[0084] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An electronic device, characterized in that, it includes: a first radiator, a second radiator, a third radiator, a first feeder, and a second feeder; the electronic device has a top edge and a side edge that are perpendicular to each other, the first radiator is disposed on the top edge, and the second radiator and the third radiator are disposed on the side edge; the first radiator includes a connection end and a free end, and a first feeding point is disposed between the connection end and the free end, and the first feeding point is used to connect the first feeder; the second radiator includes a first grounding end and a first coupling end, a first grounding point is disposed on the first grounding end, the first grounding point is used for grounding, a second feeding point is disposed between the first coupling end and the first grounding end, the second feeding point is used to connect the first feeder, and the connection end is connected to the first grounding end; the third radiator includes a second grounding end and a second coupling end, a second grounding point is disposed on the second grounding end, the second grounding point is used for grounding, a third feeding point is disposed between the second coupling end and the second grounding end, the third feeding point is used to connect the second feeder, and an electrical coupling gap is formed between the second coupling end and the first coupling end; the first radiator and the second radiator form a first antenna, and the first antenna generates a first resonance mode under the excitation of the first feeder to support signal transmission and reception in the first frequency band; the second radiator and the third radiator form a second antenna, and the second antenna generates a second resonance mode under the excitation of the second feeder to support signal transmission and reception in the second frequency band.

2. The electronic device according to claim 1, characterized in that, the second radiator generates the second resonance mode under the excitation of the second feeder through the electrical coupling gap to support signal transmission and reception in the second frequency band; the third radiator generates a third resonance mode under the excitation of the second feeder to support signal transmission and reception in the third frequency band.

3. The electronic device according to claim 2, characterized in that, the first frequency band is the Wi-Fi 5G frequency band, the second frequency band is the N78 frequency band, and the third frequency band is the mid-high frequency band.

4. The electronic device according to claim 1, characterized in that, the electronic device further includes: a first tuning circuit, a first end of the first tuning circuit is connected to the first feeder, a second end of the first tuning circuit is connected to the first feeding point, a third end of the first tuning circuit is connected to the second feeding point, and the first tuning circuit is used to adjust the resonance mode of the first antenna.

5. The electronic device according to claim 4, characterized in that, the first tuning circuit includes a first matching circuit and a second matching circuit; one end of the first matching circuit is connected to the first feeder, the other end of the first matching circuit is connected to the first feeding point, and the first matching circuit is used to adjust the resonance mode of the first radiator; One end of the second matching circuit is connected to the first feeder, and the other end of the second matching circuit is connected to the second feeding point. The second matching circuit is used to adjust the resonance mode of the second radiator.

6. The electronic device according to claim 5, wherein, the first tuning circuit further includes a band-pass filter circuit. One end of the band-pass filter circuit is connected to the first feeder, and the other end of the band-pass filter circuit is connected to one end of the second matching circuit. The band-pass filter circuit is used to block signals in frequency bands other than the first frequency band from passing through.

7. The electronic device according to claim 6, wherein, the first tuning circuit further includes a phase-shifting circuit. One end of the phase-shifting circuit is connected to the other end of the band-pass filter circuit, and the other end of the phase-shifting circuit is connected to one end of the second matching circuit. The phase-shifting circuit is used to adjust the radiation direction of the second radiator.

8. The electronic device according to claim 5, wherein, the first matching circuit includes a first capacitor. One end of the first capacitor is connected to the first feeder, and the other end of the first capacitor is connected to the first feeding point.

9. The electronic device according to claim 8, wherein, the first matching circuit and the first radiator form a left-handed antenna.

10. The electronic device according to claim 7, wherein, the second matching circuit includes a first inductor and a second capacitor. One end of the first inductor is connected to the first feeder, and the other end of the first inductor is connected to the second feeding point. One end of the second capacitor is connected to one end of the first inductor, and the other end of the second capacitor is grounded.

11. The electronic device according to claim 10, wherein, the band-pass filter circuit includes a second inductor and a third capacitor. One end of the third capacitor is connected to the first feeder, and the other end of the third capacitor is connected to one end of the second inductor. The other end of the second inductor is connected to one end of the first inductor.

12. The electronic device according to claim 11, wherein, the phase-shifting circuit includes a third inductor and a fourth capacitor. One end of the fourth capacitor is connected to the other end of the second inductor, and the other end of the fourth capacitor is connected to one end of the first inductor. One end of the third inductor is connected to one end of the fourth capacitor, and the other end of the third inductor is grounded.

13. The electronic device according to claim 2, wherein, the electronic device further includes: a second tuning circuit. One end of the second tuning circuit is connected to the second feeder, and the other end of the second tuning circuit is connected to the third feeding point. The second tuning circuit is used to adjust the resonance mode of the second antenna.

14. The electronic device according to claim 13, wherein, The second tuning circuit includes a fourth inductor, a fifth capacitor, a first switching device, and a plurality of parallel inductors with different inductance values. One end of the fifth capacitor is connected to the second feed source, the other end of the fifth capacitor is connected to the third feeding point, one end of the fourth inductor is connected to one end of the fifth capacitor, the other end of the fourth inductor is grounded, one end of the first switching device is connected to the other end of the fifth capacitor, the other end of the first switching device is connected to one end of the plurality of parallel inductors, and the other ends of the plurality of parallel inductors are grounded; When the first switching device connects different inductors among the plurality of parallel inductors, the third radiator is used to generate different resonance modes.

15. The electronic device according to claim 1, wherein, in the first resonance mode, the currents on the first radiator and the second radiator are orthogonal currents.

16. The electronic device according to claim 15, wherein, in the first resonance mode, the current direction on the first radiator is from the first feeding point to the free end, and the current direction on the second radiator is from the first grounding end to the first coupling end.

17. The electronic device according to any one of claims 1-16, wherein, the first feeding point is close to the free end.

18. The electronic device according to claim 1, wherein, the first antenna is located at the upper left corner or the upper right corner of the electronic device, and the second antenna is located on the side where the first antenna is located.

19. The electronic device according to claim 1, wherein, the electronic device includes a metal frame, and the first radiator, the second radiator, and the third radiator are formed by slotting parts of the metal frame.

20. The electronic device according to claim 1, wherein, the electronic device includes a middle frame, and the grounding point of the electronic device is connected to the middle frame.

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