Electronic device and antenna control method

Abstract

The invention provides electronic equipment and an antenna control method, and the electronic equipment comprises an antenna assembly which comprises a first radiation source; a first radiation branch; the first matching circuit is arranged between the feed point of the first radiation branch knot and the first radiation source and is used for tuning the first radiation branch knot into a first resonance mode; the second radiation branch knot comprises a third end, a fourth end and a connection point; the second matching circuit is arranged between the connection point and the ground and is used for adjusting the resonance mode of the second radiation branch knot; when the resonance mode of the second radiation branch knot is a first resonance mode, the second radiation branch knot and the first radiation branch knot jointly transmit and receive a first frequency band signal; when the resonance mode of the second radiation branch knot is a second resonance mode, the second radiation branch knot receives and transmits a second frequency band signal; wherein the first frequency band is a GPS L5 frequency band, and the second frequency band is an MHB frequency band.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to an electronic device and an antenna control method. Background Art

[0002] With the development of communication technology, antennas, as important components of communication systems, largely determine the performance of communication systems. Therefore, it is increasingly important to design high-performance antennas. In addition, with the popularization of smart electronic devices such as smartphones and tablets, users have higher and higher requirements for the user experience of smart electronic devices, and the design and performance of antennas are directly related to the user experience of smart electronic devices. Summary of the invention

[0003] The present application provides an electronic device and an antenna control method. The following introduces various aspects involved in the embodiments of the present application.

[0004] In a first aspect, an electronic device is provided, including an antenna assembly, the antenna assembly including: a first radiation branch, including a first end and a second end and a feed point arranged between the first end and the second end, the first end is used for grounding, and the feed point is connected to the first radiation source; a first matching circuit is arranged between the feed point and the first radiation source, and is used to tune the resonance mode of the first radiation branch to a first resonance mode, so as to receive and transmit a first frequency band signal through the first radiation branch; a second radiation branch, including a third end and a fourth end and a connection point arranged between the third end and the fourth end, and the fourth end is used for grounding; a second matching circuit is arranged between the connection point and the ground, and is used to adjust the resonance mode of the second radiation branch, and the resonance mode of the second radiation branch includes the first resonance mode and the second resonance mode; when the resonance mode of the second radiation branch is the first resonance mode, the second radiation branch and the first radiation branch jointly receive and transmit the first frequency band signal; when the resonance mode of the second radiation branch is the second resonance mode, the second radiation branch receives and transmits a second frequency band signal; wherein the first frequency band is the GPS L5 frequency band, and the second frequency band is the MHB frequency band.

[0005] Optionally, the second matching circuit is further used to: adjust the resonance mode of the second radiation branch according to the use scenario of the electronic device; the use scenario includes a navigation scenario and a non-navigation scenario, and in the non-navigation scenario, the second matching circuit is used to tune the second radiation branch to a second resonance mode so that the second radiation branch receives and transmits a second frequency band signal; in the navigation scenario, the second matching circuit is used to tune the second radiation branch to a first resonance mode so that the second radiation branch and the first radiation branch jointly receive and transmit the first frequency band signal;

[0006] Optionally, the MHB frequency band includes multiple sub-frequency bands; the second matching circuit includes multiple tuning elements, the multiple tuning elements include a first type of tuning elements and a second type of tuning elements, the first type of tuning elements are used to adjust the resonant frequency of the second radiation branch to multiple sub-frequency bands in the MHB frequency band, and the second type of tuning elements are used to adjust the resonant frequency of the second radiation branch to a first target frequency band, and the first target frequency band is configured as follows: when the resonant frequency of the second radiation branch is the first target frequency band, the currents of the first radiation branch and the second radiation branch are in the same direction, and the radiation of the first frequency band signal by the antenna assembly is enhanced; the second matching circuit is also used to: in the non-navigation scenario, control the first target element in the first type of tuning elements to be turned on with the connection point to adjust the resonant frequency of the second radiation branch to the target sub-frequency band; in the navigation scenario, control the second type of tuning elements to be turned on with the connection point to adjust the resonant frequency of the second radiation branch to the target frequency band.

[0007] Optionally, the second matching circuit also includes a first switching circuit, the first switching circuit includes multiple first ends and multiple second ends, the multiple first ends are connected to the connection point, the multiple second ends are respectively connected to the first ends of the multiple tuning elements, and the second ends of the multiple tuning elements are all grounded; the matching circuit is also used to: according to the usage scenario, adjust the conduction state of the multiple first ends and the multiple second ends of the first switching circuit to adjust the conduction state of the first type of resonant tuning element and the second type of tuning element and the connection point.

[0008] Optionally, the first matching circuit includes a first capacitor, a second capacitor and a first inductor; wherein, the first end of the first capacitor is connected to the feed point, the second end of the first capacitor is connected to the first end of the second capacitor, the second end of the second capacitor is connected to the first radiation source, the first end of the first inductor is connected to the second end of the first capacitor, and the second end of the first inductor is grounded.

[0009] Optionally, the first capacitor is an adjustable capacitor, and the first capacitor is configured to: in the navigation scenario, adjust the capacitance value of the first capacitor to maintain the resonant frequency of the first radiation branch in the first frequency band.

[0010] In a second aspect, an antenna control method is provided, which is applied to an electronic device, wherein the electronic device comprises: an antenna component, wherein the antenna component comprises: a first radiation source; a first radiation branch, comprising a first end and a second end and a feed point arranged between the first end and the second end, wherein the first end is used for grounding, and the feed is connected to the first radiation source; a first matching circuit, arranged between the feed point and the ground, and used for tuning the resonant mode of the first radiation branch to a first resonant mode, so as to receive and transmit a first frequency band signal through the first radiation branch; a second radiation branch, comprising a third end and a fourth end and a connection point arranged between the third end and the fourth end, wherein the fourth end is used for grounding; a second matching circuit, arranged in the Between the connection point and the ground, it is used to adjust the resonance mode of the second radiation branch; the method includes: according to the use scenario of the electronic device, adjusting the resonance mode of the second radiation branch, the use scenario includes a navigation scenario and a non-navigation scenario; in the non-navigation scenario, controlling the second matching circuit to tune the second radiation branch to the second resonance mode, so that the second radiation branch can receive and transmit the second frequency band signal; in the navigation scenario, controlling the second matching circuit to tune the second radiation branch to the first resonance mode, so that the second radiation branch and the first radiation branch can jointly receive and transmit the first frequency band signal; wherein, the first frequency band is the GPSL5 band, and the second frequency band is the MHB band.

[0011] Optionally, the MHB frequency band includes multiple sub-frequency bands; the second matching circuit includes multiple tuning elements, the multiple tuning elements include a first type of tuning elements and a second type of tuning elements, the first type of tuning elements are used to adjust the resonant frequency of the second radiation branch to multiple sub-frequency bands in the MHB frequency band, and the second type of tuning elements are used to adjust the resonant frequency of the second radiation branch to a first target frequency band, and the first target frequency band is configured as follows: when the resonant frequency of the second radiation branch is the first target frequency band, the currents of the first radiation branch and the second radiation branch are in the same direction, and the antenna assembly enhances the radiation of the first frequency band signal; the method also includes: in the non-navigation scenario, controlling the first target element in the first type of tuning elements to be turned on with the connection point to adjust the resonant frequency of the second radiation branch to the target sub-frequency band; in the navigation scenario, controlling the second type of tuning elements to be turned on with the connection point to adjust the resonant frequency of the second radiation branch to the target frequency band.

[0012] Optionally, the second matching circuit also includes a first switching circuit, the first switching circuit includes multiple first ends and multiple second ends, the multiple first ends are connected to the connection point, the multiple second ends are respectively connected to the first ends of the multiple tuning elements, and the second ends of the multiple tuning elements are all grounded; the method also includes: according to the usage scenario, adjusting the conduction state of the multiple first ends and the multiple second ends of the first switching circuit to adjust the conduction state of the first type of resonant tuning element and the second type of tuning element and the connection point.

[0013] Optionally, the first matching circuit includes a first capacitor, a second capacitor and a first inductor; wherein, the first end of the first capacitor is connected to the feed point, the second end of the first capacitor is connected to the first end of the second capacitor, the second end of the second capacitor is connected to the first radiation source, the first end of the first inductor is connected to the second end of the first capacitor, and the second end of the first inductor is grounded.

[0014] Optionally, the first capacitor is an adjustable capacitor; the method further includes: in the navigation scenario, adjusting the capacitance value of the first capacitor to maintain the resonant frequency of the first radiation branch within the first frequency band.

[0015] In the technical solution provided in the embodiment of the present application, an independent matching circuit is provided for the second radiating branch (i.e., the coupling branch) in the electronic device, and the matching circuit is used to adjust the resonance mode of the coupling branch, so that the coupling branch can not only transmit and receive cellular signals independently of the main radiating branch, but also operate in the GPS L5 frequency band according to actual needs, thereby improving the performance of the electronic device in transmitting and receiving GPS signals and improving the positioning and navigation accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of an antenna in an electronic device in the related art.

[0017] Figure 2 It is a schematic diagram of an electronic device provided by an embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of an electronic device provided by another embodiment of the present application.

[0019] Figure 4 These are simulation results of the S parameters of the antenna components of the electronic device provided in the embodiments of the present application in navigation scenarios and non-navigation scenarios.

[0020] Figure 5 It is a schematic diagram of an electronic device provided in yet another embodiment of the present application.

[0021] Figure 6These are simulation results of the antenna efficiency of the antenna assembly of the electronic device provided in the embodiments of the present application in navigation scenarios and non-navigation scenarios.

[0022] Figure 7 It is a schematic diagram of the upper hemisphere proportion of the antenna component in the navigation scenario.

[0023] Figure 8 It is a schematic diagram of the upper hemisphere proportion of the antenna component in a non-navigation scenario.

[0024] Fig. 9 It is a schematic diagram of the current distribution of the antenna component in the navigation scenario.

[0025] Fig.10 Schematic diagram of the current distribution of the antenna component in a non-navigation scenario.

[0026] Fig.11 It is a schematic flow chart of the antenna control method provided in an embodiment of the present application.

[0027] Fig.12 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present application more clear, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0029] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0031] It is understood that the terms "first" and "second" used in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0033] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0034] Before introducing the technical solutions of the embodiments of the present application, electronic devices in the related art and existing problems are described in detail with reference to the accompanying drawings.

[0035] Take the mobile phone as an example. At present, the performance requirements of the antenna are relatively high, and the space layout is relatively tight. Generally, there are more than two middle high band (MHB) antennas on the mobile phone, which are used to send and receive cellular network signals in the 1000MHz-3000MHz frequency band. At the same time, in order to realize the function of navigation and fixed position, the mobile phone is usually equipped with a global positioning system (GPS) antenna. The core frequency bands of GPS include L1, L2 and L5.

[0036] The L1 band is one of the most commonly used bands in the global satellite navigation system. The center frequency of the L1 band is 1575.42MHz, with high signal strength and good penetration. The navigation signal of the L1 band is suitable for a wide range of applications, including aviation, navigation, vehicle navigation, and consumer electronics such as smart phones.

[0037] The L2 band is the second core band in the global satellite navigation system, mainly used to improve positioning accuracy and resist interference. The center frequency of the L2 band is 1227.60MHz, which is commonly used for military and high-precision applications in GPS and GLONASS systems. The signals in the L2 band have high anti-interference performance and can effectively resist malicious interference and signal shielding attacks. In addition, the L2 band can also achieve higher positioning accuracy by measuring the carrier phase, which is used in scientific research, mapping and measurement.

[0038] The L5 band is one of the newest bands in the global satellite navigation system, with a center frequency of 1176.45MHz. The introduction of the L5 band is mainly to provide higher positioning accuracy and anti-interference performance. The signal of the L5 band has a higher bandwidth and lower multipath effect, which can provide more accurate and reliable positioning information. The application of the L5 band is mainly concentrated in the field of high-precision positioning, such as aerospace, geological exploration and precision agriculture. Due to the introduction of the L5 band, the performance of the global satellite navigation system has been significantly improved, providing users with a better positioning and navigation experience. This band is also widely used in electronic devices such as mobile phones to improve their positioning and navigation capabilities.

[0039] Figure 1 The figure shows a schematic diagram of the antenna structure of an electronic device in the related art. It should be noted that: Figure 1 What is shown in the figure is only part of the antenna in the electronic device, not all antennas.

[0040] Figure 1 The antenna assembly 100 includes a main branch 110 , a parasitic branch 120 , a feed source 130 , a first tuning circuit 140 and a second tuning circuit 150 .

[0041] The main branch 110 includes a ground terminal 111 and a first free end 112 and a feed point 113 disposed between the ground terminal 111 and the first free end 112 and close to the first free end 112. The ground terminal 111 is used for grounding, and the feed 113 is connected to the feed source through the first tuning circuit 140. The main branch is used for transmitting and receiving GPS L5 frequency band signals under the excitation of the feed source 130 to support high-precision positioning and navigation of electronic devices.

[0042] The parasitic branch 120 includes a second free end 121 and a ground end 122 and a connection point 123 disposed between the second free end 121 and the ground end 122 and close to the second free end 121. The ground end 122 is used for grounding, and the connection point is used for connecting to a second tuning circuit 150, which is used to control the resonant frequency of the parasitic branch so that the parasitic branch 120 performs MHB as a cellular antenna.

[0043] The working process of the antenna assembly 100 includes: the feed source 130 generates excitation and radiates the GPS L5 frequency band signal through the main branch 110; at the same time, under the coupling between the main branch 110 and the parasitic branch 120, the parasitic branch 120 transmits and receives the MHB frequency band signal to ensure that the electronic device using the antenna assembly has good cellular communication quality.

[0044] That is to say, in the above scheme, the main branch 110 is configured to only receive and transmit GPS signals, and the parasitic branch 120 is only used to receive and transmit MHB band signals; in actual applications, for example, when a user is driving a vehicle, he needs to use a mobile phone for navigation. At this time, in order to improve the accuracy and real-time performance of navigation, the performance requirements for the GPS signal antenna are relatively high, while the performance requirements for the cellular antenna are relatively low. However, in the above scheme, the reception of the GPS L5 band and the MHB band are relatively independent, resulting in a general user experience.

[0045] In view of the above problems, an embodiment of the present application provides an electronic device and a method for controlling an antenna. The technical solution of the present application will be described in detail with reference to the accompanying drawings.

[0046] Figure 2 is a schematic structural diagram of an electronic device 20 provided in an embodiment of the present application, Figure 2 The electronic device 20 in the embodiment includes an antenna assembly 200, and the antenna assembly 200 includes:

[0047] a first radiation source 210 , a first radiation branch 220 , a first matching circuit 230 , a second radiation branch 240 , and a second matching circuit 250 .

[0048] The first radiation branch 220 includes a first end 220a, a second end 220b, and a feeding point 220c disposed between the first end 220a and the second end 220b, and the feeding point 220c is disposed close to the second end 220b.

[0049] The second radiation branch 240 includes a third end 240 a and a fourth end 240 b and a connection point 240 c disposed between the third end 240 a and the fourth end 240 b .

[0050] The first radiation branch 220 and the second radiation branch 240 are coupled through a gap between the second end 220 b and the third end 240 a .

[0051] The first end 220 of the first radiation branch 220 and the fourth end 240c of the second radiation branch 240 are both grounded ends, and the feed point 220c of the first radiation branch 220 is connected to the feed source 210 through the first matching circuit 230, and the first matching circuit 230 is used to tune the resonance mode of the first radiation branch 220 to the first resonance mode, so as to transmit and receive the first frequency band signal through the first radiation branch 220. The signal of the first frequency band is the signal of the GPS L5 frequency band.

[0052] It should be noted that the embodiment of the present application does not limit the structure of the first matching circuit 230 , and the first matching circuit 230 may include tuning elements such as capacitors and / or inductors.

[0053] The second matching circuit 250 is arranged between the connection point 240c and the ground GND. The second matching circuit is configured to be able to adjust the resonance mode of the second radiation branch 240. Specifically, when the resonance mode of the second radiation branch 240 is tuned to the first resonance mode by using the second matching circuit 250, the second radiation branch 240 can work together with the first radiation branch 210 to receive and transmit the first frequency band signal, thereby enhancing the signal of the frequency band; and when the resonance mode of the second radiation branch 240 is tuned to the second resonance mode, the second radiation branch 240 and the first radiation branch 210 respectively transmit and receive the second frequency band signal and the first frequency band signal. At this time, the signal reception and transmission between the two radiation branches are independent of each other and do not affect each other.

[0054] In the technical solution provided in the embodiment of the present application, an independent matching circuit is provided for the second radiating branch (i.e., the coupling branch) in the electronic device, and the matching circuit is used to adjust the resonance mode of the coupling branch, so that the coupling branch can not only transmit and receive cellular signals independently of the main radiating branch, but also operate in the GPS L5 frequency band according to actual needs, thereby improving the performance of the electronic device in transmitting and receiving GPS signals and improving the positioning and navigation accuracy of the device.

[0055] In some embodiments, the second matching circuit 250 is configured to adjust the resonance mode of the second radiation branch according to the usage scenario of the electronic device.

[0056] The usage scenarios of the electronic device mentioned here include navigation scenarios and non-navigation scenarios. In the navigation scenario, the electronic device needs to rely on GPS signals for real-time positioning and navigation, and the positioning accuracy requirements are not high; in the non-navigation scenario, the electronic device may be used for games or calls and other services. At this time, the signal strength and signal quality requirements of the GPS signal are relatively low, but it needs to meet the user's requirements for the strength and quality of the cellular communication signal.

[0057] The second matching circuit in the embodiment of the present application is configured as follows: in a non-navigation scenario, the second matching circuit tunes the second radiating branch 240 to a second resonant mode so that the second frequency band signal is directly transmitted and received; in this embodiment, the second frequency band is a medium-high frequency band. In this scenario, the first radiating branch 220 and the second radiating branch 240 transmit and receive GPS L5 frequency band and MHB frequency band signals respectively, and the two radiating branches 220 do not affect each other.

[0058] In the navigation scenario, the second matching circuit 250 is configured to tune the second radiating branch to the first resonant mode so that the first radiating branch and the second radiating branch work together to transmit and receive signals in the first frequency band (i.e., the GPS L5 band); at this time, the GPS signal is enhanced to ensure a better navigation experience.

[0059] By adjusting the resonant state of the second radiation branch according to the application scenario of the electronic device, the ability of the electronic device to send and receive GPS L5 frequency band signals in a navigation scenario can be enhanced; at the same time, in a non-navigation scenario, it can ensure that the electronic device has good communication quality; this technical solution can improve the positioning and navigation accuracy and enhance the user experience.

[0060] In some embodiments, the MHB frequency band includes multiple sub-frequency bands, such as band3, band39, band1, band40, and band41.

[0061] Figure 3 is a schematic structural diagram of an electronic device provided in a further embodiment of the present application, such as Figure 3 As shown, the second matching circuit 250 includes a plurality of tuning elements, and the plurality of tuning elements include a first type tuning element 251A and a second type tuning element 251B. Among them, the first type tuning element 251A is used to adjust the resonant frequency of the second radiation branch to multiple sub-bands in the MHB frequency band. For example, the first type tuning element 251A may include multiple capacitors. By reasonably configuring the capacitance value of the capacitor, the resonant frequency of the second radiation branch can be adjusted to the center frequency of bands such as band3, band39, band1, band40 and band41. It should be noted that the above-mentioned first type tuning element may also be an inductor; or, the first type tuning element may also be a combination of a capacitor and an inductor, such as a capacitor and an inductor connected in parallel or in series, etc. The embodiment of the present application does not limit the specific structure of the above-mentioned first type tuning element.

[0062] The second type tuning element 251B is used to adjust the resonant frequency of the second radiating branch to the first target frequency band, wherein the first target frequency band is configured so that when the resonant frequency of the second radiating branch is the first target frequency band, the current directions of the first radiating branch and the second radiating branch are the same, and at this time, the radiation of the antenna component to the first frequency band signal is enhanced.

[0063] As mentioned above, the first frequency band is the GPS L5 frequency band, and its center frequency is 1176.45 MHz. The first target frequency can be set to 1350 MHz, which can enhance the signal of the first frequency band.

[0064] The second matching circuit 250 is also used to: in a non-navigation scenario, control the first target element in the first type tuning element 251A to be connected to the connection point 240c, so as to adjust the resonant frequency of the second radiation branch 240 to a target sub-band. The target sub-band can be any sub-band in the MHB band, and the first target element is any one of the first type resonant elements 251A, and corresponds to the target sub-band.

[0065] In the navigation scenario, the second matching circuit 250 is used to: in the navigation scenario, control the second type tuning element 251B and the connection point 240c to be turned on, so as to adjust the resonant frequency of the second radiation branch 240 to the above target frequency band (eg, 1350 MHz).

[0066] In some embodiments, Figure 3 As shown, the second matching circuit also includes a first switch circuit 252, which includes a plurality of first ends 252A and a plurality of second ends 252B, wherein the plurality of first ends 252A are connected to the connection point 240c, and the plurality of second ends 252B are respectively connected to the first ends of the plurality of tuning elements 251, and the second sections of the plurality of tuning elements 251 are all grounded.

[0067] The second matching circuit 250 is also used to: adjust the connection status of multiple first ends 252A and multiple second ends 252B of the first switch circuit 252 according to the use scenario of the electronic device, so as to adjust the conduction status of the first type tuning element 251A and the second type tuning element 251B and the connection point 240c.

[0068] In some embodiments, continue to refer to Figure 3 The first matching circuit 230 includes a first capacitor C1, a second capacitor C2, and a first inductor L1. The first end of the first capacitor C1 is connected to the feed point 210c, the second end is connected to the first end of the second capacitor C2, the second end of the second capacitor C2 is connected to the first radiation source 210, the first end of the first inductor L1 is connected to the second end of the first capacitor C2 (i.e., the node between C1 and C2), and the second end of the first inductor L1 is grounded.

[0069] In some embodiments, the capacitance of the first capacitor C1 is 0.5 pF, the capacitance of the second capacitor C2 is 2.0 pF, and the inductance of the first inductor L1 is 6 nH. At this time, the first matching circuit 230 can control the resonant frequency of the first radiation branch 220 to 1100 MHz.

[0070] Figure 4The figure shows the simulation results of the S parameters of the antenna assembly of the above electronic device in the navigation scenario and the non-navigation scenario. In the non-navigation scenario, the first radiation branch and the second radiation branch work in the GPS L5 frequency band and the band 3 frequency band respectively. The center frequency of the antenna assembly is Figure 4 1.08 GHz and 1.808 GHz as shown by points 1 and 2 in the figure; in the navigation scenario, the second matching circuit adjusts the resonant frequency of the second radiation branch to 1.356 GHz as shown by point 4 in the figure. At this time, the return loss of the antenna component at the frequency point of 1.0921 GHz as shown by point 3 is small, which means that the radiation capability of the antenna component for the GPS L5 frequency band is enhanced.

[0071] At the same time, from Figure 4 It can be seen from points 1 and 3 that after the resonant frequency of the second radiation branch is adjusted, due to the coupling between the radiation branches, the frequency of the first radiation branch is increased from 1.08 GHz to 1.0921 GHz, resulting in a frequency deviation of 0.0121 GHz.

[0072] In order to eliminate the influence of the above frequency deviation on the positioning accuracy, in some embodiments, such as Figure 5 As shown, the first capacitor C1 in the first matching circuit 230 is set as an adjustable capacitor. When the frequency deviation occurs, the first capacitor is fine-tuned to keep the frequency of the first radiation branch at the center frequency of the GPS L5 frequency band.

[0073] Figure 6 Shown are simulation curves of the antenna efficiency of the antenna assembly of the electronic device in navigation scenarios and non-navigation scenarios. It can be seen from points 1 and 2 that the antenna efficiency values ​​in the GPS L5 frequency band in navigation scenarios and non-navigation scenarios are -1.8466dB and -3.2565dB respectively, and the antenna efficiency is improved by about 1.5dB.

[0074] Figure 7 and Figure 8 Schematic diagrams of the upper hemisphere proportions of antenna components in navigation scenarios and non-navigation scenarios, respectively. Figure 7 and Figure 8 The horizontal axis is the frequency and the vertical axis is the proportion. Figure 7 The ordinate ratio of point 1 and point 2 is 0.009085 / 0.018636=0.487=48.7%, that is, in the navigation scenario, the upper hemisphere accounts for 48.7%. Figure 8 The ordinate ratio of midpoint 1 and point 2 is 0.007521 / 0.015123 = 0.497 = 49.7%. It can be seen that in the navigation scenario and the non-navigation scenario, the upper hemisphere proportion changes little, that is, the second radiation branch has little effect on the radiation direction of the GPS L5 frequency band signal.

[0075] Fig. 9 and Fig.10 They are the current distribution of the antenna components in the navigation scenario and the non-navigation scenario. It can be seen from the current distribution diagram that when the wave of the second radiating branch is pulled higher than the first radiating branch, the currents on the two radiating branches are in the same direction. At this time, the floor current is enhanced and the floor radiation is enhanced.

[0076] Combination of the above Figure 1-Figure 10 Having described the device embodiment of the present application, the following describes the method embodiment of the application in conjunction with the accompanying drawings. It should be understood that the description of the method embodiment corresponds to the device embodiment. Therefore, for the parts not described in detail, reference can be made to the device embodiment above.

[0077] Fig.11 It is a schematic flow chart of the antenna control method provided in an embodiment of the present application, and the method is applied to an electronic device, which can be the electronic device in any of the embodiments described above. The electronic device includes an antenna assembly: the antenna assembly includes: a first radiation source; a first radiation branch, including a first end and a second end and a feed point arranged between the first end and the second end, the first end is used for grounding, and the feed is connected to the first radiation source; a first matching circuit, arranged between the feed point and the first radiation source, for tuning the resonant mode of the first radiation branch to a first resonant mode, so as to receive and transmit a first frequency band signal through the first radiation branch; a second radiation branch, including a third end and a fourth end and a connection point arranged between the third end and the fourth end, the fourth end is used for grounding; a second matching circuit, arranged between the connection point and the ground, for adjusting the resonant mode of the second radiation branch.

[0078] Fig.11 The method includes steps S1110-S1120.

[0079] In step S1110, a usage scenario of the electronic device is determined, where the usage scenario includes a navigation scenario and a non-navigation scenario.

[0080] There are many ways to determine the usage scenario of an electronic device. As one possible implementation method, it can be determined based on the type of application running in the foreground of the electronic device system. For example, when the "map" application in the electronic device is opened, it can be determined that it is currently in a navigation scenario; as another possible implementation method, the current scenario can also be determined based on the moving speed of the electronic device. For example, when the moving speed of the electronic device is greater than 30km / h, it is determined that the electronic device may currently be in a navigation scenario; for example, the usage scenario of the electronic device can also be determined by the user of the device. For example, the user can adjust the current state by tapping or sliding on the screen of the electronic device.

[0081] It can be understood that the above-mentioned methods of determining the usage scenario of the electronic device are all examples, and the embodiments of the present application do not specifically limit this.

[0082] When it is determined that the usage scenario is a non-navigation scenario, step S1120A is executed to control the second matching circuit to tune the second radiation branch to a second resonance mode so that the second radiation branch transmits and receives a second frequency band signal.

[0083] When it is determined that the usage scenario is a navigation scenario, step S1120B is executed to control the second matching circuit to tune the second radiation branch to the first resonance mode so that the second radiation branch and the first radiation branch can jointly transmit and receive the first frequency band signal.

[0084] The first frequency band is the GPS L5 frequency band, and the second frequency band is the MHB frequency band.

[0085] Optionally, the MHB frequency band includes multiple sub-frequency bands; the second matching circuit includes multiple tuning elements, the multiple tuning elements include a first type of tuning elements and a second type of tuning elements, the first type of tuning elements are used to adjust the resonant frequency of the second radiation branch to multiple sub-frequency bands in the MHB frequency band, and the second type of tuning elements are used to adjust the resonant frequency of the second radiation branch to a first target frequency band, and the first target frequency band is configured as follows: when the resonant frequency of the second radiation branch is the first target frequency band, the currents of the first radiation branch and the second radiation branch are in the same direction, and the radiation of the first frequency band signal by the antenna assembly is enhanced;

[0086] The method also includes: in the non-navigation scenario, controlling the first target element in the first type of tuning element to be connected to the connection point to adjust the resonant frequency of the second radiation branch to the target sub-frequency band; in the navigation scenario, controlling the second type of tuning element to be connected to the connection point to adjust the resonant frequency of the second radiation branch to the target frequency band.

[0087] Optionally, the second matching circuit also includes a first switching circuit, the first switching circuit includes multiple first ends and multiple second ends, the multiple first ends are connected to the connection point, the multiple second ends are respectively connected to the first ends of the multiple tuning elements, and the second ends of the multiple tuning elements are all grounded.

[0088] The method further includes: adjusting the conduction states of the plurality of first terminals and the plurality of second terminals of the first switch circuit according to the usage scenario to adjust the conduction states of the first type of resonant tuning element and the second type of tuning element and the connection point.

[0089] Optionally, the first matching circuit includes a first capacitor, a second capacitor and a first inductor; wherein, the first end of the first capacitor is connected to the feed point, the second end of the first capacitor is connected to the first end of the second capacitor, the second end of the second capacitor is connected to the first radiation source, the first end of the first inductor is connected to the second end of the first capacitor, and the second end of the first inductor is grounded.

[0090] Optionally, the first capacitor is an adjustable capacitor; the method further includes: in the navigation scenario, adjusting the capacitance value of the first capacitor to maintain the resonant frequency of the first radiation branch within the first frequency band.

[0091] Combine the following Fig.12 The electronic device 1200 in the embodiment of the present application is introduced. The electronic device 1200 can be used to implement the method described in the above method embodiment.

[0092] It should be understood that the electronic device 1200 can be applied to any type of electronic device mentioned above.

[0093] The electronic device 1200 may include one or more processors 1210. The processor 1210 may support the electronic device 1200 to implement the method described in the foregoing method embodiment.

[0094] The processor 1210 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0095] The electronic device 1200 may further include one or more memories 1220. The memory 1220 stores a program, which can be executed by the processor 1210 to control the electronic device 1200 to execute the method described in the above method embodiment. The memory 1220 may be independent of the processor 1210 or integrated in the processor 1210.

[0096] The electronic device 1200 may further include a transceiver 1230. The processor 1210 may communicate with other devices through the transceiver 1230. For example, the processor 1210 may transmit and receive data with other devices through the transceiver 1230.

[0097] It should be understood that in the embodiment 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.

[0098] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0099] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0100] In the several embodiments provided in the present 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 only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as 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 mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0101] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0102] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0103] 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 process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may 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 may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0104] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: An antenna assembly is included, the antenna assembly comprising: A first radiation source; A first radiation branch, comprising a first end, a second end and a feeding point arranged between the first end and the second end, wherein the first end is used for grounding, and the feeding point is connected to the first radiation source; a first matching circuit, arranged between the feed point and the first radiation source, for tuning the resonance mode of the first radiation branch to a first resonance mode, so as to transmit and receive signals of a first frequency band through the first radiation branch; The second radiation branch comprises a third end and a fourth end and a connection point arranged between the third end and the fourth end, wherein the fourth end is used for grounding; A second matching circuit is provided between the connection point and the ground, and is used to adjust the resonance mode of the second radiation branch, wherein the resonance mode of the second radiation branch includes the first resonance mode and the second resonance mode; When the resonance mode of the second radiation branch is the first resonance mode, the second radiation branch and the first radiation branch jointly transmit and receive the first frequency band signal; When the resonance mode of the second radiation branch is the second resonance mode, the second radiation branch transmits and receives a second frequency band signal; The first frequency band is the GPS L5 frequency band, and the second frequency band is the MHB frequency band.

2. The electronic device according to claim 1, characterized in that: The second matching circuit is further used to: adjust the resonance mode of the second radiation branch according to the usage scenario of the electronic device; The usage scenarios include navigation scenarios and non-navigation scenarios. In the non-navigation scenario, the second matching circuit is used to tune the second radiation branch to a second resonance mode so that the second radiation branch transmits and receives a second frequency band signal; In the navigation scenario, the second matching circuit is used to tune the second radiation branch to a first resonance mode, so that the second radiation branch and the first radiation branch can jointly transmit and receive the first frequency band signal.

3. The electronic device according to claim 2, characterized in that: The MHB frequency band includes a plurality of sub-frequency bands; The second matching circuit includes a plurality of tuning elements, the plurality of tuning elements include a first type of tuning elements and a second type of tuning elements, the first type of tuning elements are used to adjust the resonant frequency of the second radiation branch to a plurality of sub-bands in the MHB frequency band, the second type of tuning elements are used to adjust the resonant frequency of the second radiation branch to a first target frequency band, the first target frequency band is configured as follows: when the resonant frequency of the second radiation branch is the first target frequency band, the currents of the first radiation branch and the second radiation branch are in the same direction, and the radiation of the first frequency band signal by the antenna assembly is enhanced; The second matching circuit is further used to: in the non-navigation scenario, control the first target element in the first type of tuning element to be connected to the connection point, so as to adjust the resonant frequency of the second radiation branch to a target sub-band; In the navigation scenario, the second-type tuning element is controlled to be connected to the connection point to adjust the resonant frequency of the second radiation branch to the target frequency band.

4. The electronic device according to claim 3, characterized in that: The second matching circuit further includes a first switch circuit, the first switch circuit includes a plurality of first ends and a plurality of second ends, the plurality of first ends are connected to the connection point, the plurality of second ends are respectively connected to the first ends of the plurality of tuning elements, and the second ends of the plurality of tuning elements are all grounded; The second matching circuit is also used to: adjust the conduction state of multiple first ends and multiple second ends of the first switch circuit according to the usage scenario, so as to adjust the conduction state of the first type of resonant tuning element and the second type of tuning element and the connection point.

5. The electronic device according to claim 1, characterized in that: The first matching circuit includes a first capacitor, a second capacitor and a first inductor; The first end of the first capacitor is connected to the feeding point, the second end of the first capacitor is connected to the first end of the second capacitor, the second end of the second capacitor is connected to the first radiation source, the first end of the first inductor is connected to the second end of the first capacitor, and the second end of the first inductor is grounded.

6. The electronic device according to claim 5, characterized in that: The first capacitor is an adjustable capacitor, and the first capacitor is configured to: in the navigation scenario, adjust the capacitance value of the first capacitor to maintain the resonant frequency of the first radiation branch in the first frequency band.

7. An antenna control method, applied to an electronic device, wherein the electronic device comprises an antenna assembly: The antenna assembly comprises: A first radiation source; A first radiation branch, comprising a first end, a second end and a feeding point arranged between the first end and the second end, wherein the first end is used for grounding, and the feeding point is connected to the first radiation source; a first matching circuit, arranged between the feed point and the first radiation source, for tuning the resonance mode of the first radiation branch to a first resonance mode, so as to transmit and receive signals of a first frequency band through the first radiation branch; The second radiation branch comprises a third end and a fourth end and a connection point arranged between the third end and the fourth end, wherein the fourth end is used for grounding; A second matching circuit is arranged between the connection point and the ground, and is used to adjust the resonance mode of the second radiation branch; Characterized in that the method comprises: Determining a usage scenario of the electronic device, wherein the usage scenario includes a navigation scenario and a non-navigation scenario; In the non-navigation scenario, controlling the second matching circuit to tune the second radiation branch to a second resonance mode so that the second radiation branch transmits and receives a second frequency band signal; In the navigation scenario, controlling the second matching circuit to tune the second radiation branch to a first resonance mode, so that the second radiation branch and the first radiation branch jointly transmit and receive the first frequency band signal; The first frequency band is the GPS L5 frequency band, and the second frequency band is the MHB frequency band.

8. The method according to claim 7, characterized in that The MHB frequency band includes a plurality of sub-frequency bands; The second matching circuit includes a plurality of tuning elements, the plurality of tuning elements include a first type of tuning elements and a second type of tuning elements, the first type of tuning elements are used to adjust the resonant frequency of the second radiation branch to a plurality of sub-bands in the MHB frequency band, the second type of tuning elements are used to adjust the resonant frequency of the second radiation branch to a first target frequency band, the first target frequency band is configured as follows: when the resonant frequency of the second radiation branch is the first target frequency band, the currents of the first radiation branch and the second radiation branch are in the same direction, and the radiation of the first frequency band signal by the antenna assembly is enhanced; The method further includes: in the non-navigation scenario, controlling a first target element in the first type of tuning element to be connected to the connection point to adjust the resonant frequency of the second radiation branch to a target sub-band; In the navigation scenario, the second-type tuning element is controlled to be connected to the connection point to adjust the resonant frequency of the second radiation branch to the target frequency band.

9. The method according to claim 8, characterized in that The second matching circuit further includes a first switch circuit, the first switch circuit includes a plurality of first ends and a plurality of second ends, the plurality of first ends are connected to the connection point, the plurality of second ends are respectively connected to the first ends of the plurality of tuning elements, and the second ends of the plurality of tuning elements are all grounded; The method further includes: adjusting the conduction states of the plurality of first terminals and the plurality of second terminals of the first switch circuit according to the usage scenario to adjust the conduction states of the first type of resonant tuning element and the second type of tuning element and the connection point.

10. The method according to claim 7, characterized in that The first matching circuit includes a first capacitor, a second capacitor and a first inductor; The first end of the first capacitor is connected to the feeding point, the second end of the first capacitor is connected to the first end of the second capacitor, the second end of the second capacitor is connected to the first radiation source, the first end of the first inductor is connected to the second end of the first capacitor, and the second end of the first inductor is grounded.

11. The method according to claim 10, characterized in that The first capacitor is an adjustable capacitor; The method further includes: in the navigation scenario, adjusting the capacitance value of the first capacitor to maintain the resonant frequency of the first radiation branch within the first frequency band.

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