Electronic equipment and method for controlling beam direction

Abstract

The invention provides electronic equipment and a method for controlling a beam direction. The electronic equipment comprises an antenna device which is provided with a first radiation branch knot and a second radiation branch knot, the first radiation branch knot is provided with a feeding point and a grounding point, the feeding point is connected with a feed source, the second radiation branch knot is provided with a first connecting end and a second connecting end, and the first radiation branch knot is used for feeding the second radiation branch knot in a coupling mode; the first radiation branch knot is used for GPS communication; the switching circuit is respectively connected with the second connecting end and the common ground, the switching circuit has a plurality of working states, the plurality of working states correspond to a plurality of connecting states of the second connecting end, and the plurality of connecting states and the plurality of beam directions have a mapping relation; and the control circuit is connected with the switching circuit and is used for controlling the switching circuit to be in a target working state according to the posture of the electronic equipment, so that the target beam direction of the antenna device points to the upper hemisphere. And the GPS positioning precision of the electronic equipment in different postures can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of wireless communication technology, and more specifically, to an electronic device and a method for controlling a beam direction. Background Art

[0002] With the development of mobile Internet, users will face more complex scenarios when using electronic devices for positioning. In different usage scenarios, the user's holding posture and the orientation of the phone vary. Therefore, the fixed GPS antenna with a better proportion of upper hemisphere radiation power cannot have good antenna performance in scenarios such as horizontal screen of the phone, which will affect the GPS communication quality. Summary of the invention

[0003] The embodiments of the present application provide an electronic device and a method for controlling a beam direction. Various aspects involved in the embodiments of the present application are introduced below.

[0004] In a first aspect, an electronic device is provided, comprising: an antenna device, having a first radiating branch and a second radiating branch, the first radiating branch having a feeding point and a grounding point, the feeding point being connected to a feed source, the second radiating branch having a first connection end and a second connection end, the first connection end being connected to a common ground, the first radiating branch being used to feed the second radiating branch in a coupled manner, the first radiating branch being used for GPS communication; a switching circuit, connected to the second connection end and the common ground respectively, the switching circuit having a plurality of working states, the plurality of working states corresponding to a plurality of connection states of the second connection end, the plurality of connection states having a mapping relationship with a plurality of beam directions; a control circuit, connected to the switching circuit, for performing the following operations: according to the posture of the electronic device, controlling the switching circuit to be in a target working state, so that the target beam direction of the antenna device is a direction pointing to the upper hemisphere.

[0005] In a second aspect, a method for controlling a beam direction is provided, which is applied to an electronic device, wherein the electronic device comprises: an antenna device, having a first radiating branch and a second radiating branch, the first radiating branch having a feeding point and a grounding point, the feeding point being connected to a feed source, the second radiating branch having a first connection end and a second connection end, the first connection end being connected to a common ground, the first radiating branch being used to feed the second radiating branch in a coupled manner, and the first radiating branch being used for GPS communication; a switching circuit, connected to the second connection end and the common ground respectively, the switching circuit having a plurality of working states, the plurality of working states corresponding to a plurality of connection states of the second connection end, the plurality of connection states having a mapping relationship with a plurality of beam directions; a control circuit, connected to the switching circuit; the method comprises: determining a posture of the electronic device; and controlling the switching circuit to be in a target working state according to the posture of the electronic device, so that the target beam direction of the antenna device is a direction pointing to the upper hemisphere.

[0006] According to a third aspect, a computer-readable storage medium is provided, on which instructions for executing the method according to the second aspect are stored.

[0007] According to a fourth aspect, a computer program or a computer program product is provided, comprising instructions for executing the method according to the second aspect.

[0008] The embodiment of the present application controls the connection state of the second radiation branch through a switch circuit, and can realize multiple beam directions. By switching the beam direction according to the posture of the electronic device, the target beam direction can be pointed to the upper hemisphere, so that the upper hemisphere radiation power of the GPS antenna accounts for a larger proportion, which helps to improve the GPS communication quality of the electronic device in different postures and improve the positioning performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1a-Figure 1c It is a schematic diagram of the layout of the GPS antenna provided by the related technology.

[0010] Figure 2 It is a schematic diagram of a component unit / partial component unit of an electronic device provided in an embodiment of the present application.

[0011] Figure 3 yes Figure 2 A schematic structural diagram of a possible implementation of an electronic device.

[0012] Figure 4 yes Figure 3 A partially enlarged schematic diagram of the antenna device in FIG.

[0013] Figure 5 for Figure 4 Schematic diagram of current distribution of the antenna device in the first working state.

[0014] Figure 6 for Figure 5 Schematic diagram of a first beam direction of an antenna arrangement.

[0015] Figure 7 for Figure 4 Schematic diagram of current distribution of the antenna device in the second working state.

[0016] Figure 8 for Figure 7 Schematic diagram of a second beam direction of the antenna arrangement.

[0017] Fig. 9 yes Figure 2 A schematic diagram of a possible implementation of the antenna device in FIG.

[0018] Fig.10 yes Figure 2 Schematic diagram of another possible implementation of the antenna device in .

[0019] Fig.11 It is a flowchart of a method for controlling beam direction provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0021] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WIMA) communication system, fifth generation (5G) system or new radio (NR), etc. The technical solutions provided in the present application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0022] The electronic device in the embodiment of the present application may also be referred to as a terminal device, terminal, user equipment (UE), user terminal, access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote terminal, remote station, mobile device, wireless communication device, user agent or user device. The terminal device in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, and may be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a laptop, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using a sidelink signal. The cellular phone and the smart home device communicate with each other without relaying the communication signal through the base station.

[0023] The antenna pattern refers to a graph showing how the relative field strength (normalized modulus) of the radiation field changes with direction at a certain distance from the antenna. It is usually represented by two mutually perpendicular plane patterns in the direction of maximum radiation of the antenna. The antenna pattern is generally petal-shaped, so it is also called a lobe pattern. The antenna beam refers to the main lobe of the antenna pattern, which is the beam within the first zero radiation direction line on both sides of the maximum radiation direction. The beam in the opposite direction of the main lobe is called the back lobe, and the beams between the remaining zero radiation directions are called side lobes or side lobes.

[0024] The antenna needs to have high gain performance at both the transmitting and receiving ends. Currently, the global positioning system (GPS) antennas on the market only guarantee the upper hemisphere performance when placed vertically. When the user places the phone flat or upside down, the energy share of the GPS antenna towards the sky satellite cannot be guaranteed. The following is an example of a mobile phone.

[0025] Figure 1a-Figure 1c The following is a schematic diagram of the location of common GPS antennas in bar phones and folding phones. These GPS antennas are usually placed on the upper frame of the phone, such as Figure 1a As shown, the GPS antenna is located on the left side of the upper frame; Figure 1b As shown, the GPS antenna is located in the middle of the upper frame; Figure 1c As shown, the GPS antenna is located on the right side of the upper frame. Generally, in order to ensure that the upper hemisphere radiation ratio of the antenna, that is, the power radiated by the upper hemisphere when the mobile phone display is placed vertically accounts for more than 50% of the total radiated power (TRP) of the antenna.

[0026] With the development of mobile Internet, users will have more complex scenarios when using mobile phones for positioning, especially for foldable screen mobile phones. Such as call scenarios, horizontal and vertical screen game scenarios, horizontal screen audio and video scenarios, vertical screen Internet scenarios, map navigation scenarios, etc. In different user usage scenarios, the user's holding posture of the mobile phone and the orientation of the mobile phone are ever-changing. Therefore, the above-mentioned fixed upper hemisphere antenna with a better proportion cannot have the best antenna performance in scenarios such as horizontal screen of the mobile phone, affecting the GPS communication quality.

[0027] It should be noted that the above-mentioned problem that the performance of the mobile phone GPS antenna cannot adapt to changes in the mobile phone posture is only an example. The embodiments of the present application can be applied to any type of scenario where the performance of the GPS antenna of the terminal device cannot adapt to changes in posture.

[0028] Therefore, how to develop a technical solution for a GPS antenna that can adapt to changes in the posture of electronic equipment is a problem that needs to be solved.

[0029] Based on this, an embodiment of the present application proposes an electronic device. Figure 2 Schematic diagram of component units / partial component units of the electronic device provided in the embodiment of the present application. Figure 2 The embodiments of the present application are described in detail. Figure 2 As shown, the electronic device 200 may include an antenna device 210 , a feed source 220 , a switch circuit 230 and a control circuit 240 .

[0030] To facilitate the description of the multiple beam directions and the relationship between them, the embodiment of the present application takes the large screen of the electronic device display (the side where the unfolded screen of the folding screen is located) as the front side, and the side opposite to the front side as the back side. The direction of the electronic device display when it is placed vertically is taken as the reference direction. The vertical direction includes the up and down directions; the horizontal directions of the front and back vertically placed on the display are the positive and negative directions (or called the front and back directions), and the directions of the left and right sides of the display parallel to the display are the left and right directions.

[0031] The antenna device 210 has a first radiation branch 211 and a second radiation branch 212. The first radiation branch 211 has a feeding point and a grounding point, and the feeding point is connected to the feed source 220. The second radiation branch 212 has a first connection end 212a and a second connection end 212b, and the first connection end is connected to the common ground. The first radiation branch 211 is used to feed the second radiation branch 212 in a coupled manner, and the first radiation branch is used for GPS communication. The first radiation branch is used to receive the radio frequency signal of GPS communication.

[0032] The common ground is also called the reference ground, ground plane, ground, or common ground. The common ground can be a ground layer on a circuit board, a metal structure, or other conductive internal ground.

[0033] The radiation branch is also called a radiator, an antenna branch, or a branch. The first radiation branch 211 is a GPS antenna, which is used to send and receive radio frequency signals for GPS communication. GPS communication can include the current three frequency bands L1, L2, and L5, as well as other frequency bands in the future. Among them, the frequency point of L1 is 1575.42MHz, the frequency point of L2 is 1227.60MHz, and the frequency point of L5 is 1176.45MHz.

[0034] The position of the first radiation branch 211 on the electronic device can be flexibly set. The first radiation branch 211 can be located on any side of the electronic device, such as on the top side. The first radiation branch 211 can be a loop antenna, an inverted F-shaped antenna, a T-shaped antenna, a slot antenna, a hybrid antenna including more than one type of antenna structure, or other suitable antenna structure. The embodiment of the present application does not limit the structural form of the first radiation branch 111.

[0035] The first radiation branch 211 can be implemented by metal traces on a printed circuit or other dielectric substrate, a metal shell structure, or other conductive shell structures. For example, the first radiation branch 211 can be composed of a metal branch with a slit in the middle frame, one end of the first radiation branch 211 is grounded through the middle frame (grounding point), and the other end is disconnected from the middle frame (feeding point). The grounding point on the first radiation branch 211 can be electrically connected to the metal traces, metal parts and common ground on the printed circuit or other dielectric substrate through a spring, a metal connecting material, a metal screw, a conductive glue / foam. In some implementations, the metal traces can be made in any of the following ways: flexible printed circuit (FPC), laser printing metal forming, printing direct structuring (PDS).

[0036] The feed point is the connection point between the feed line and the antenna. The feed line refers to the signal line, whose main task is to effectively transmit signal energy, transmit the transmit signal power to the input end of the transmit antenna with minimal loss, or transmit the signal received by the antenna to the receiving end with minimal loss, and at the same time, it should not generate stray interference signals.

[0037] The second radiation branch 212 can be arranged near the first radiation branch 211. For example, the second radiation branch 212 and the first radiation branch 211 are located on the same side. For another example, the first radiation branch 211 is located on the first side, and the second radiation branch 212 is located on the adjacent side of the first side. The second radiation branch 212 can be located on the left side of the first radiation branch 211, or on the right side of the first radiation branch 211. That is, the antenna device 210 can be arranged at any position of the frame (middle frame) of the electronic device.

[0038] The second radiation branch 212 may be a suspended branch. The suspended branch does not need to be directly connected to the body of the electronic device, nor does it need to be connected to the ground circuit of the electronic device. The suspended branch may be arranged on the housing of the electronic device or on the antenna bracket.

[0039] In some implementations, the second radiation branch 212, or parasitic branch, is not directly electrically connected to the feed source. In order to facilitate the first radiation branch 211 to feed the second radiation branch 212 in a coupled manner, in some embodiments, the second radiation branch 212 and the first radiation branch 211 can be arranged at opposite ends, or part of the second radiation branch 212 and part of the first radiation branch 211 are arranged to overlap.

[0040] The second connection end 212b may have a variety of electrical connection states, for example, an open circuit (disconnected circuit) or a grounded (short circuit) state.

[0041] The switch circuit 230 is connected to the second connection terminal 212b and the common ground respectively. The switch circuit 230 has multiple working states, which correspond to multiple connection states of the second connection terminal 212b, and the multiple connection states are mapped to multiple beam directions.

[0042] Optionally, the switch circuit may be a single-pole double-throw switch (SP2T) or a single-pole four-throw switch (SP4T), which is simple and reliable.

[0043] In some implementations, when the switch circuit 230 is in the first working state, the second connection terminal 212b is connected to the ground plane, and the antenna device has a first beam direction; when the switch circuit 230 is in the second working state, the second connection terminal 212b is in an open circuit state, and the antenna device has a second beam direction, which is different from the first beam direction.

[0044] The control circuit 240 is connected to the switch circuit 230 and is used to perform the following operations: according to the posture of the electronic device 200, the switch circuit 230 is controlled to be in a target working state so that the target beam direction of the antenna device 210 is directed to the upper hemisphere. The target beam direction is the desired beam direction, such as the beam direction adapted to the requirements of the usage scenario. The target beam direction points to (biases toward) the upper hemisphere, that is, the upper hemisphere radiation power accounts for more than 50%.

[0045] For example, when the electronic device 200 is in a portrait orientation, the control switch circuit 230 is in a first working state, the first radiation branch 211 is used for GPS communication, the second connection end 212b is grounded, and the second radiation branch 212 is in a non-working state. At this time, the target working state is the first working state, and the target beam direction of the antenna device 210 is the first beam direction and points to the upper hemisphere. When the electronic device 200 is in a landscape orientation, the control switch circuit 230 is in a second working state, the second connection end 212b is in an open circuit state, the first radiation branch 211 feeds the second radiation branch 212 in a coupled manner, and the first radiation branch 211 and the second radiation branch 212 are used for GPS communication together. At this time, the target working state is the second working state, and the target beam direction of the antenna device 210 is the second beam direction and points to the upper hemisphere.

[0046] In some embodiments, the second radiation branch 212 can be independently set for GPS communication. In other embodiments, the second radiation branch 212 can also reuse other antennas, or be a reused branch of other antennas, without the need to independently set the second radiation branch. In some implementations, the switch circuit 230 is connected to the feed source 220. When the switch circuit 230 is in the third working state, the second connection end 212b is connected to the feed source 220, that is, the second connection end 212b is in a feeding state. At this time, the second radiation branch 212 is used to send and receive radio frequency signals of the first wireless communication, and the first wireless communication is different from GPS communication. The first wireless communication can be, for example, cellular network communication, WIFI communication, and Bluetooth communication. The second radiation branch 212 is a reused antenna and does not need to be independently set, which helps to save internal space and cost.

[0047] The electrical length of the first radiation branch 211 can be set according to the use requirements, for example, it can be determined according to a quarter wavelength of the working frequency band of the antenna device 210, such as the electrical length of the first radiation branch 211 can be a quarter wavelength of the working frequency band. An antenna with a quarter wavelength is also called a monopole antenna. The feeding of the monopole antenna is usually carried out at the lower end using a coaxial cable, and the ground conductor of the feeder is connected to a platform (such as an electronic device).

[0048] The electrical length of the first radiation branch 211 is usually different from the electrical length of the second radiation branch 212 , especially when the second radiation branch 212 is a multiplex antenna. Therefore, the resonant frequency of the first radiation branch 211 is different from the resonant frequency of the second radiation branch 212 .

[0049] In some implementations, the electronic device 200 may further include a tuning circuit. The tuning circuit, or matching circuit, is connected to the switch circuit 230 and the ground plane. When the switch circuit 230 is in the fourth working state, the second connection terminal 212b is connected to the tuning circuit, and the tuning circuit is used to adjust the resonant frequency of the second radiation branch 212 to the frequency band of GPS communication. For example, if the frequency band is adjusted to L1, L2 or L5, the second radiation branch 212 originally designed for the first wireless communication can also be used for GPS communication.

[0050] The tuning circuit may be a circuit composed of an inductor or a capacitor, or a circuit composed of a plurality of inductors and capacitors in any combination.

[0051] The tuning circuit may include multiple ones, the first tuning circuit is connected to the first radiating branch 211, and the second tuning circuit is connected to the second radiating branch 212. In some implementations, the feeding point of the first radiating branch 211 may be connected to the first tuning circuit. The first tuning circuit is used to adjust the resonant frequency of the first radiating branch 211 to a target operating frequency, and the target operating frequency is a GPS communication frequency band.

[0052] In some implementations, the first connection end 212a of the second radiation branch 212 can be connected to a switch circuit. The inlet side of the switch circuit 230 is respectively connected to the first connection end 212a and the second connection end 212b, and the outlet side of the switch circuit 230 is respectively connected to a common ground, a feed source 220, and a tuning circuit. The first connection end 212a can have a grounded or disconnected state, and the second connection end 212b can be grounded, open (disconnected state), connected to a feed source, or connected to a tuning circuit. The switch circuit 230 has multiple working states, and the multiple working states correspond to multiple combined connection states of the first connection end 212a and the second connection end 212b, and the multiple combined connection states have a mapping relationship with multiple beam directions.

[0053] The embodiment of the present application controls the connection state of the second radiation branch through a switching circuit to achieve multiple beam directions. By switching the beam direction according to the posture of the electronic device, the target beam direction can be pointed to the upper hemisphere, so that the radiation power of the upper hemisphere of the GPS antenna accounts for a large proportion, which helps to improve the GPS communication quality of the electronic device in different postures (different scenarios) and improve the positioning performance.

[0054] The embodiment of the present application can obtain the target beam direction by controlling the working state of the switch circuit 230. The target beam direction is the desired beam direction, such as the beam direction that meets the requirements of the usage scenario.

[0055] In some implementations, before controlling the working state of the switch circuit according to the posture of the electronic device, the posture of the electronic device can be obtained through a posture sensor. The posture sensor can be, for example, a gyroscope or an angular acceleration sensor. A gyroscope, also known as a gyro-sensor, is a measuring instrument that can detect the angle (posture), angular velocity or angular acceleration of an object. For example, a gyroscope sensor can be used to obtain the Euler angle of the posture of a mobile phone through a posture solution method, which represents the motion posture of the mobile phone.

[0056] Taking a mobile phone in an electronic device as an example, the changing of the beam direction according to the posture of the electronic device is exemplified. For the GPS communication application scenario, the current posture (i.e., the placement direction) of the mobile phone can be determined by the gyroscope, and the target beam direction can be kept pointing to the sky (upper hemisphere) by switching the working state of the switch circuit 230, so that the radiation proportion performance of the upper hemisphere can be guaranteed under any posture of the mobile phone.

[0057] The electronic device according to the embodiment of the present application is further described below in combination with some possible implementation methods of the embodiment of the present application.

[0058] Figure 3 yes Figure 2 A schematic diagram of a possible implementation of an electronic device. Figure 3 The electronic device according to the embodiment of the present application is introduced in detail. Figure 3 This is the front view of the external screen when the mobile phone display is placed vertically.

[0059] For the convenience of explaining the relationship between multiple beam directions, the surface where the display screen is located is the front side (the surface where the unfolded screen of the folding screen is located is the front side), and the surface opposite to the front side is the back side. The embodiment of the present application takes the direction when the mobile phone display screen is placed vertically as the reference direction. The vertical direction includes the up and down directions, the horizontal direction of the front and back vertically placed on the mobile phone display screen is the positive and negative direction (or the front and back direction), and the direction of the left and right sides of the mobile phone display screen parallel to the display screen is the left and right direction.

[0060] like Figure 3 As shown, the antenna device 210 includes a first radiating branch 211 and a second radiating branch 212, wherein the first radiating branch 211 is located at the intersection of the right side of the top edge and the side edge of the mobile phone 400, and the second radiating branch 212 is located in the middle area of ​​the top edge. The first radiating branch 212 and the second radiating branch 212 are arranged end to end. The first radiating branch 211 is a GPS antenna; the second radiating branch 212 is an antenna for transmitting and receiving radio frequency signals of the first wireless communication, and the second radiating branch 212 can be reused for GPS communication. The first wireless communication can be, for example, cellular network communication, WIFI communication, Bluetooth communication, etc. The second radiating branch 212 is a reused antenna and does not need to be independently set up, which helps to save space and cost. When the second radiating branch 212 is reused for GPS communication, the first radiating branch 211 feeds the second radiating branch 212 in a coupled manner.

[0061] Figure 4 for Figure 3 A partially enlarged schematic diagram of the antenna device 210 is shown. Figure 4 As shown, the first radiation branch 211 has a feeding point and a grounding point, and the feeding point is connected to the feed source 220. The second radiation branch 212 has a first connection end 212a and a second connection end 212b, and the first connection end is connected to the common ground. The second connection end 212b can have multiple electrical connection states, for example, it can be an open circuit (disconnected circuit), a short circuit (grounded) or a feeding state.

[0062] One side of the switch circuit 230 is connected to the second connection end 212b, and the other side of the switch circuit 230 is respectively connected to the common ground and the feed source 220. The switch circuit 230 may have multiple working states, and the multiple working states correspond to multiple connection states of the second connection end 212b, and the multiple connection states have a mapping relationship with multiple beam directions.

[0063] Alternatively, the switching circuit may include a single-pole four-throw switch (SP4T).

[0064] Exemplarily, two different working states of the switch circuit 230 to form different beam directions are introduced below.

[0065] 1. First beam direction: When the switch circuit is in the first working state, the first connection end 212a is grounded, and the second connection end 212b is in a grounded state, and the antenna device 210 has a first beam direction.

[0066] Figure 5 for Figure 4 Schematic diagram of current distribution of the antenna device in the first working state. Figure 5 As shown, the first radiation branch 211 couples and excites the metal frame of the mobile phone to generate horizontally polarized and vertically polarized currents along the first radiation branch 211. Both ends of the second radiation branch 212 are grounded, and there is almost no current on the branch. Figure 6 for Figure 5 Schematic diagram of the beam direction of the antenna device. Figure 6 As shown, at this time, the radiation power of the upper hemisphere and the left hemisphere is obviously dominant.

[0067] 2. Second beam direction. When the switch circuit is in the second working state, the first connection end 212a is in a grounded state, and the second connection end 212b is in an open circuit state (disconnected). At this time, the resonant frequency of the second radiation branch 212 is just near the working frequency band of the first radiation branch 211. In some embodiments, the resonant frequency of the second radiation branch 212 can also be adjusted to near the GPS communication frequency band through a tuning circuit composed of a capacitor or an inductor. Then the antenna device 410 has a second beam direction, which is different from the first beam direction.

[0068] Figure 7 for Figure 4 Schematic diagram of current distribution of the antenna device in the second working state. Figure 7 As shown, the current mode at this time is a mixed mode of the first radiation branch 2112 coupled feeding superimposed on the parasitic current of the second radiation branch 212. In addition to generating a polarized current along the first radiation branch 211, the second radiation branch 212 couples and excites the metal frame of the mobile phone to generate a horizontally polarized current along the second radiation branch 212. This current mode is significantly different from the current mode in the second working state, and the radiation pattern formed is also different. Figure 8 for Figure 7 Schematic diagram of the beam direction of the antenna device. Figure 8 As shown, at this time, the radiation power in the upper hemisphere and the left hemisphere is weakened, while the lower hemisphere and the right hemisphere are dominant.

[0069] Table 1 shows the radiation power proportion of the four hemispheres of the GPS antenna device in two states. It can be seen that the radiation power proportion of the upper hemisphere and the left hemisphere in the first working state (i.e., the default state) of the switch circuit is relatively high, accounting for 62.5% of the upper hemisphere and 76.3% of the left hemisphere respectively; while the radiation power proportion of the lower hemisphere and the right hemisphere in the second working state is relatively high, accounting for 67.3% of the lower hemisphere and 59.1% of the right hemisphere respectively. The combination of the two states can meet the situation where all four hemispheres have high radiation proportions.

[0070] Table 1 The proportion of radiation power in the four hemispheres in different states

[0071] Switch Status Upper Hemisphere Proportion Lower Hemisphere Proportion Left hemisphere ratio Right hemisphere ratio First working state 62.5％ 37.5％ 76.3％ 23.7％ Second working state 32.7％ 67.3％ 40.9％ 59.1％

[0072] It should be understood that the first beam direction is biased towards the upper hemisphere and the left hemisphere, and the second beam direction is biased towards the lower hemisphere and the right hemisphere. Figure 3 This is for a mobile phone display screen placed vertically. When the posture (or orientation) of an electronic device (such as a mobile phone) changes, the directions of multiple beams will change accordingly.

[0073] The embodiment of the present application controls the connection state of the second radiation branch through a switch circuit, changes the current mode of the antenna device, switches the beam direction according to the posture of the electronic device, and can make the target beam direction point to the upper hemisphere, so that the radiation power of the upper hemisphere of the GPS antenna accounts for a large proportion. This helps to improve the GPS communication quality of electronic devices in different postures and improve positioning performance.

[0074] The second radiating branch 212 may be located on the left side of the first radiating branch 211 or on the right side of the first radiating branch 211. The second radiating branch 212 may be located on the upper side of the first radiating branch 211 or on the lower side of the first radiating branch 211. The embodiment of the present application does not limit the positional relationship between the first radiating branch 211 and the second radiating branch 212.

[0075] Fig. 9 yes Figure 2 A structural diagram of a possible implementation of the antenna device in FIG. Fig. 9 As shown, the first radiation branch 211 is a GPS antenna, and the second radiation branch 212 is a first wireless communication antenna. The second radiation branch 212 can be located on the right side of the first radiation branch 211. The second connection end 212b of the second radiation branch 212 is adjacent to the grounding point of the first radiation branch 211 and is arranged at the opposite end.

[0076] The first connection end 212a of the second radiation branch 212 is grounded. The inlet side of the switch circuit 230 is connected to the second connection end 212b, and the outlet side of the switch circuit 230 is respectively connected to the common ground, the feed source 220, and the tuning circuit. The second connection end 212b can be grounded, open (disconnected state), connected to the feed source, or connected to the tuning circuit. The switch circuit 230 has multiple working states, and the multiple working states correspond to the multiple connection states of the second connection end 212b, and the multiple combined connection states have a mapping relationship with the multiple beam directions. That is, the multiple working states correspond to the multiple combined connection states of the first connection end 212a and the second connection end 212b, and the multiple combined connection states have a mapping relationship with the multiple beam directions.

[0077] When the switch circuit 230 is in the third working state, the second connection end 212b is in the feeding state, and the second radiation branch 212 is used to send and receive the radio frequency signal of the first wireless communication. The second radiation branch 212 can be located on the left side of the first radiation branch 211, or on the right side of the first radiation branch 211, which is different from GPS communication. The first wireless communication can be, for example, cellular network communication, WIFI communication, and Bluetooth communication. The second radiation branch 212 is a multiplexed antenna and does not need to be independently set, which helps save space and cost.

[0078] The tuning circuit may be a circuit composed of an inductor or a capacitor, or a combination circuit composed of an inductor and a capacitor in any combination.

[0079] When the switch circuit 230 is in the fourth working state, the second connection end 212b is connected to the tuning circuit, and the tuning circuit is used to adjust the resonant frequency of the second radiation branch 212 to the frequency band of GPS communication. For example, if it is adjusted to the L1, L2 or L5 frequency band, the second radiation branch 212 originally used for the first wireless communication can also be used for GPS communication. The tuning circuit also helps to adjust the radiation ratio of the antenna pattern.

[0080] Fig.10 yes Figure 2 A schematic diagram of another possible implementation of the antenna device in FIG. Fig.10 As shown, the antenna device 210 includes a first radiation branch 211 and a second radiation branch 212 .

[0081] The first connection end 212a of the second radiation branch 212 can be connected to the switch circuit 230. The inlet side of the switch circuit 230 is respectively connected to the first connection end 212a and the second connection end 212b, and the outlet side of the switch circuit 230 is respectively connected to the common ground, the feed source 220, and the tuning circuit. The first connection end 212a can have a grounded state or a disconnected state, and the second connection end 212b can be grounded, open (disconnected state), connected to the feed source, or connected to the tuning circuit. The switch circuit 230 has multiple working states, and the multiple working states correspond to multiple combined connection states of the first connection end 212a and the second connection end 212b, respectively, and the multiple combined connection states have a mapping relationship with multiple beam directions.

[0082] For example, when the switch circuit 230 is in the fifth working state, the first connection end 212a is in an open state, and the second connection end 212b is in an open state.

[0083] Similar to the above description, through the different working states of the open circuit 230, the first connection end 212a and the second connection end 212b have multiple different combined connection states, which can realize multiple different beam directions and help adjust the radiation proportion of different beam directions.

[0084] It should be understood that the multiple beam directions described above are based on Figure 3 This is for a mobile phone display placed vertically. When the posture (or orientation) of the mobile phone changes, the directions of multiple beams will change accordingly.

[0085] The above combined with Figure 1 to Fig.10 The device embodiment of the present application is described in detail. Fig.11 The method embodiment of the present application is described in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous device embodiment.

[0086] Fig.11 It is a flowchart of a method for controlling beam direction provided in an embodiment of the present application. Fig.11 The method is applied to an electronic device. The electronic device comprises: an antenna device, having a first radiating branch and a second radiating branch, the first radiating branch having a feeding point and a grounding point, the feeding point being connected to a feed source, the second radiating branch having a first connecting end and a second connecting end, the first connecting end being connected to a ground plane, the first radiating branch being used to feed the second radiating branch in a coupled manner, and the first radiating branch being used for GPS communication; a switching circuit, respectively connected to the second connecting end and the ground plane, the switching circuit having a plurality of working states, the plurality of working states corresponding to a plurality of connection states of the second connecting end, the plurality of connection states being mapped to a plurality of beam directions; and a control circuit connected to the switching circuit. Fig.11As shown, the method may mainly include steps S1110 to S1120, which are described in detail below.

[0087] It should be pointed out that the size of the serial numbers of the steps in the embodiments of the present application 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 invention.

[0088] In step S1110 , the posture of the electronic device is determined.

[0089] In step S1120, according to the posture of the electronic device, the switch circuit is controlled to be in a target working state so that the target beam direction of the antenna device is directed to the upper hemisphere.

[0090] In some implementations, before controlling the working state of the switch circuit according to the posture of the electronic device, the posture of the electronic device can be obtained through a posture sensor. The posture sensor can be, for example, a gyroscope. For example, the gyroscope sensor can be used to obtain the posture Euler angle of the mobile phone through a posture solution method, which represents the motion posture of the mobile phone.

[0091] For GPS application scenarios, the current posture of the mobile phone (i.e., the placement direction) can be determined by the gyroscope. By switching the working state of the switch circuit 230, the target beam direction can be kept pointing to the sky, thereby ensuring the radiation share performance of the upper hemisphere under any mobile phone posture.

[0092] Optionally, when the switch circuit is in a first working state, the second connection end is connected to the ground plane, and the antenna device has a first beam direction; when the switch circuit is in a second working state, the second connection end is in an open circuit state, and the antenna device has a second beam direction, which is different from the first beam direction.

[0093] Optionally, the switch circuit is connected to the feed source, and when the switch circuit is in the third working state, the second connection end is in a feeding state, and the second radiation branch is used to send and receive radio frequency signals of a first wireless communication, and the first wireless communication is different from GPS communication.

[0094] Optionally, when the switch circuit is in the fourth working state, the second connection end is connected to the tuning circuit, and the tuning circuit is used to adjust the resonant frequency of the second radiation branch to the frequency band of GPS communication.

[0095] An embodiment of the present application also provides a non-volatile computer-readable storage medium having instructions stored thereon, the instructions being used to execute any of the methods or training methods for controlling an electronic device as described above.

[0096] It should be understood that the computer-readable storage medium mentioned in the embodiments of the present application 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 (such as a floppy disk, a hard disk, a tape), an optical medium (such as a digital video disc (DVD)) or a semiconductor medium (such as a solid state disk (SSD)), etc.

[0097] An embodiment of the present application further provides a computer program product, which carries a program code, and the instructions included in the program code can be used to execute the steps of the method described in any of the above method embodiments.

[0098] The computer program product may be implemented in hardware, software or a combination thereof. In some embodiments, the computer program product is embodied as a computer storage medium. In other optional embodiments, the computer program product is embodied as a software product, such as a software development kit (SDK).

[0099] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by 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 disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a machine-readable storage medium, or transmitted from one machine-readable storage medium to another machine-readable storage medium. For example, the computer instructions can 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 machine-readable storage medium can be any available medium that can be accessed 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)).

[0100] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments of the present disclosure can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0101] It should be understood that in the various embodiments of the present application, "first", "second", etc. are used to distinguish different objects rather than to describe a specific order. 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.

[0102] In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods 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.

[0103] In several embodiments provided in the present application, it should be understood that when a certain part is said to be "connected" or "connected" to another part, it means that the part can not only be "directly connected" but also "electrically connected" with another element intervening therebetween. In addition, the term "connected" also means that the part is "physically connected" and "wirelessly connected". In addition, when a certain part is said to "include" a certain element, unless otherwise stated, it means that the certain part can include another element, rather than excluding the other element.

[0104] 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.

[0105] In addition, each functional unit in each embodiment of the present disclosure 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.

[0106] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: include: An antenna device, comprising a first radiating branch and a second radiating branch, wherein the first radiating branch has a feeding point and a grounding point, wherein the feeding point is connected to a feed source, and the second radiating branch has a first connecting end and a second connecting end, wherein the first connecting end is connected to a common ground, and the first radiating branch is used to feed the second radiating branch in a coupled manner, and the first radiating branch is used for GPS communication; a switch circuit, connected to the second connection end and the common ground respectively, the switch circuit having a plurality of working states, the plurality of working states corresponding to a plurality of connection states of the second connection end, the plurality of connection states having a mapping relationship with a plurality of beam directions; A control circuit is connected to the switch circuit and is used to perform the following operations: According to the posture of the electronic device, the switch circuit is controlled to be in a target working state so that the target beam direction of the antenna device is directed to the upper hemisphere.

2. The electronic device according to claim 1, characterized in that: When the switch circuit is in a first working state, the second connection end is connected to the common ground, and the antenna device has a first beam direction; When the switch circuit is in the second working state, the second connection end is in an open circuit state, and the antenna device has a second beam direction, which is different from the first beam direction.

3. The electronic device according to claim 2, characterized in that: The switch circuit is connected to the feed source. When the switch circuit is in a third working state, the second connection end is in a feeding state. The second radiation branch is used to send and receive radio frequency signals of a first wireless communication, and the first wireless communication is different from GPS communication.

4. The electronic device according to claim 2, characterized in that: Also includes: A tuning circuit connected to the switch circuit and the common ground; When the switch circuit is in the fourth working state, the second connection end is connected to the tuning circuit, and the tuning circuit is used to adjust the resonant frequency of the second radiation branch to the frequency band of GPS communication.

5. The electronic device according to any one of claims 1 to 4, characterized in that: The second radiation branch is disposed opposite to the first radiation branch, or part of the second radiation branch is disposed overlapping with part of the first radiation branch.

6. A method for controlling a beam direction, characterized in that: Applicable to electronic equipment, the electronic equipment comprising: An antenna device, comprising a first radiating branch and a second radiating branch, wherein the first radiating branch has a feeding point and a grounding point, wherein the feeding point is connected to a feed source, and the second radiating branch has a first connecting end and a second connecting end, wherein the first connecting end is connected to a common ground, and the first radiating branch is used to feed the second radiating branch in a coupled manner, and the first radiating branch is used for GPS communication; a switch circuit, connected to the second connection end and the common ground respectively, the switch circuit having a plurality of working states, the plurality of working states corresponding to a plurality of connection states of the second connection end, the plurality of connection states having a mapping relationship with a plurality of beam directions; A control circuit connected to the switch circuit; The method comprises: determining a posture of the electronic device; According to the posture of the electronic device, the switch circuit is controlled to be in a target working state so that the target beam direction of the antenna device is directed to the upper hemisphere.

7. The method according to claim 6, characterized in that When the switch circuit is in a first working state, the second connection end is connected to the common ground, and the antenna device has a first beam direction; When the switch circuit is in the second working state, the second connection end is in an open circuit state, and the antenna device has a second beam direction, which is different from the first beam direction.

8. The method according to claim 7, characterized in that The switch circuit is connected to the feed source. When the switch circuit is in a third working state, the second connection end is in a feeding state. The second radiation branch is used to send and receive radio frequency signals of a first wireless communication, and the first wireless communication is different from GPS communication.

9. The method according to claim 6, characterized in that The determining the posture of the electronic device comprises: The posture of the electronic device is obtained through a posture sensor.

10. A non-volatile computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed, the computer program is used to implement the method according to any one of claims 6 to 9.

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