Antenna modules and electronic devices

Abstract

This disclosure provides an antenna module and an electronic device. The antenna module includes a signal matching component, a first antenna, and a second antenna; the first antenna and the second antenna are respectively disposed on both sides of a target fracture; the signal matching component is electrically connected to the first antenna and the second antenna respectively; the signal matching component is used to adjust the impedance value of its path to a target impedance value; the target impedance value satisfies: the phase difference between a first current and a second current is greater than or equal to a first phase difference threshold and less than or equal to a second phase difference threshold; the first current refers to the current in the path where the signal matching component is located; the second current refers to the current coupled between the first antenna and the second antenna through the target fracture. This embodiment can reduce the influence of the direct coupling current between the two antennas and improve the isolation between the two antennas.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to an antenna module and an electronic device. Background Technology

[0002] The increasing variety of communication functions in electronic devices, such as cellular communication, Bluetooth communication, WiFi communication, and satellite communication, has led to a corresponding increase in the number of antennas within these devices. Given the limited size of electronic devices and the increased number of antennas, multiple antennas may be connected in a point-to-point configuration, sharing a single connection. In this configuration, signal coupling between two antennas can worsen the isolation between them, resulting in a decrease in antenna performance. Utility Model Content

[0003] This disclosure provides an antenna module and an electronic device to solve the above-mentioned technical problems.

[0004] According to a first aspect of this disclosure, an antenna module is provided, the antenna module including a signal matching component, a first antenna, and a second antenna; the first antenna and the second antenna are respectively disposed on both sides of a target fracture; the signal matching component is electrically connected to the first antenna and the second antenna respectively;

[0005] The signal matching component is used to adjust the impedance value of the current path to a target impedance value; the target impedance value satisfies the following: the phase difference between the first current and the second current is greater than or equal to a first phase difference threshold and less than or equal to a second phase difference threshold.

[0006] The first current refers to the current in the path where the signal matching component is located; the second current refers to the current of the first antenna and the second antenna coupled through the target gap.

[0007] Optionally, the first phase difference threshold is in the range of (90, 150), and / or the second phase difference threshold is in the range of (150, 180).

[0008] Optionally, the target impedance value also satisfies the following: the amplitude difference between the first current and the second current is greater than or equal to the first amplitude difference threshold and less than or equal to the second amplitude difference threshold.

[0009] Optionally, the signal matching component includes a first microstrip line, a second microstrip line, and a matching circuit; a first end of the first microstrip line is electrically connected to a first connection point of the first antenna, and a second end of the first microstrip line is electrically connected to a first end of the matching circuit; a first end of the second microstrip line is electrically connected to a second end of the matching circuit, and a second end of the second microstrip line is electrically connected to a second connection point of the second antenna.

[0010] Optionally, the first connection point is located at any point on the branch between the first feed point of the first antenna and the target fracture.

[0011] And / or,

[0012] The second connection point is located at any point on the branch between the second feed point of the second antenna and the target fracture.

[0013] Optionally, the matching circuit includes a switching switch and at least one matching branch; the first terminal of the switching switch is electrically connected to the first terminal of the matching circuit, and at least one second terminal of the switching switch is sequentially electrically connected to the first terminal of the at least one matching branch; the second terminals of the at least one matching branch are respectively electrically connected to the second terminal of the matching circuit.

[0014] Optionally, the matching branch includes at least one of the following: at least one capacitor, at least one inductor, or a combination of capacitor and inductor.

[0015] Optionally, the antenna module further includes a controller; the controller is electrically connected to the switching switch;

[0016] The controller is used to determine a control signal based on the operating frequency bands of the first antenna and the second antenna, and output the control signal to the switching switch;

[0017] The switching switch is used to switch to the matching branch that matches the control signal.

[0018] According to a second aspect of this disclosure, an electronic device is provided, the electronic device comprising an antenna module and a mid-frame as described in any of the first aspects; a target slit is provided on the mid-frame; a first branch of a first antenna and a second branch of a second antenna in the antenna module are respectively disposed on both sides of the target slit.

[0019] Optionally, the electronic device further includes a first signal source and a second signal source; the first signal source is electrically connected to a first feed point of the first antenna; and the second signal source is electrically connected to a second feed point of the second antenna.

[0020] Optionally, the electronic device further includes a processor, which is used as a controller for the antenna module.

[0021] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0022] The antenna module provided in this embodiment includes a signal matching component, a first antenna, and a second antenna. The first antenna and the second antenna are respectively disposed on both sides of the target fracture. The signal matching component is electrically connected to the first antenna and the second antenna respectively. The signal matching component is used to adjust the impedance value of the path to a target impedance value. The target impedance value satisfies the following: the phase difference between the first current and the second current is greater than or equal to a first phase difference threshold and less than or equal to a second phase difference threshold. The first current refers to the current in the path where the signal matching component is located. The second current refers to the current coupled between the first antenna and the second antenna through the target fracture. Thus, by setting a signal matching component between the first antenna and the second antenna, this embodiment can form a current path for transmitting the first current between the first antenna and the second antenna. When the phase difference between the first current and the second current meets the above conditions (e.g., the phase difference is 150-180 degrees), the influence of the direct coupling current between the two antennas can be reduced, and the isolation between the two antennas can be improved. For example, when the phase difference between the first current and the second current is 180 degrees and the amplitude is the same, the first current and the second current cancel each other out, improving the isolation between the two antennas.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an antenna module according to an embodiment of the present disclosure.

[0025] Figure 2 This is a schematic diagram of an antenna module according to an embodiment of the present disclosure.

[0026] Figure 3 This is a schematic diagram of the current path within an antenna module after adding a signal matching component, according to an embodiment of this disclosure.

[0027] Figure 4 This is a schematic diagram showing the connection position of a signal matching component according to an embodiment of the present disclosure.

[0028] Figure 5 This is a schematic diagram of the structure of a signal matching component according to an embodiment of the present disclosure.

[0029] Figure 6 This is a schematic diagram of the structure of an antenna module according to an embodiment of the present disclosure.

[0030] Figure 7 This is a simulation diagram of the S-parameters of an antenna module according to an embodiment of the present disclosure.

[0031] Figure 8 This is a block diagram of an electronic device according to an embodiment of the present disclosure. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0033] This disclosure provides an antenna module and an electronic device. The antenna module can be applied to electronic devices, such as smartphones, tablets, and mobile terminals, which are equipped with multiple antennas. The electronic device can select the appropriate antenna to operate based on the service scenario.

[0034] See Figure 1 When two antennas (hereinafter referred to as antenna modules) sharing the same gap s1 are working simultaneously, the two antennas will directly couple the radiated signals through the gap s1 to generate radiated current. The radiated current constitutes the noise signal of the opposite antenna, reducing the isolation between the two antennas.

[0035] To address the aforementioned technical problems, this disclosure provides an antenna module, see [link to relevant documentation]. Figure 2 It includes: a signal matching component 11, a first antenna ANT1 and a second antenna ANT2; the first antenna ANT1 and the second antenna ANT2 are respectively disposed on both sides of the target gap slot 1; the signal matching component 11 is electrically connected to the first antenna ANT1 and the second antenna ANT2 respectively.

[0036] The signal matching component 11 is used to adjust the impedance value of the path to the target impedance value; the target impedance value satisfies that the phase difference between the first current and the second current is greater than or equal to the first phase difference threshold and less than or equal to the second phase difference threshold.

[0037] It should be noted that when the antenna module is applied to electronic devices, the radiating branches of the first antenna ANT1 and the second antenna ANT2 can be implemented using the (metal) frame of the electronic device. That is, a target slit slot1 is set on the frame, and the first and second branches on both sides of the target slit slot1 are used as branches of the first antenna ANT1 and the second antenna ANT2, respectively.

[0038] See Figure 3 The first current i1 refers to the current in the path where the signal matching component 11 is located; the second current i2 refers to the current of the first antenna ANT1 and the second antenna ANT2 coupled through the target gap. Figure 3The example illustrates the case where the net currents after mutual radiation from the first antenna ANT1 and the second antenna ANT2 are the first current i1 and the second current i2, respectively. The above example is only for understanding the scheme and does not constitute a limitation on the scheme disclosed herein.

[0039] In one example, the first phase difference threshold ranges from (90, 150). In another example, the second phase difference threshold ranges from (150, 180). When the first phase difference threshold is 150 and the second phase difference threshold is 180, the phase difference between the first current and the second current is between (150, 180) degrees. In another example, the phase difference between the first current and the second current can be 180 degrees, meaning the first current and the second current are out of phase. In this case, the first current can cancel out part or all of the second current, reducing the isolation between the first antenna and the second antenna.

[0040] In one example, the signal matching component 11 is used to adjust the impedance value of the path to a target impedance value. This target impedance value also satisfies the following conditions: the amplitude difference between the first current and the second current is greater than or equal to a first amplitude difference threshold and less than or equal to a second amplitude difference threshold. The first amplitude difference threshold ranges from [0, 1] mA, and the second amplitude difference threshold ranges from [0, 10] mA. In one example, the amplitude difference between the first current and the second current is 0, meaning the amplitudes of the first current and the second current are equal. Thus, in this example, by adjusting the amplitude difference between the first current and the second current, the first current and the second current can be made to cancel each other out as much as possible, thereby reducing the influence of the directly coupled second current (through the target gap slot 1) and improving the isolation between the first antenna ANT1 and the second antenna ANT2.

[0041] In one example, the first antenna ANT1 includes a first feed point FB1. Given that the first feed point FB1 is electrically connected to a first signal source Source1 of the electronic device, there is a first connecting line L2 between the first signal source Source1 and the first feed point FB1, and a first stub L1 between the first feed point FB1 and the target slot 1. Similarly, the second antenna ANT2 includes a second feed point FB2. Given that the second feed point FB2 is electrically connected to a second signal source Source2 of the electronic device, there is a second connecting line L4 between the second signal source Source2 and the second feed point FB2, and a second stub L3 between the second feed point FB2 and the target slot 1.

[0042] Thus, the first end of the signal matching component 11 can be positioned on the first stub L1 and the first connecting line L2, and the second end of the signal matching component 11 can be positioned on the second stub L3 and the second connecting line L4. The position of the signal matching component 11 can be adjusted according to the type of antenna module and the operating frequency band. Alternatively, the signal matching component 11 is equivalent to forming a current path by being connected in series between the first feed point FB1 and the second feed point FB2. Considering the connecting line between the signal matching component 11 and the stub, and the impedance value of the signal matching component 11, the impedance value of the signal matching component 11 can be coarsely adjusted by adjusting the connection position of the signal matching component 11.

[0043] Understandably, once the signal matching component 11 is set up, its initial impedance value is determined. Subsequent adjustments to the impedance value can then be made to change it.

[0044] In one example, the first connection point is located at any point on stub L1 between the first feed point FB1 of the first antenna ANT1 and the target slot 1. And / or, the second connection point is located at any point on stub L3 between the second feed point FB2 of the second antenna ANT2 and the target slot 1. Thus, in this example, by shunting the coupled current on stub L1 and stub L3, the coupling between the first antenna ANT1 and the second antenna ANT2 can be reduced, and the isolation between the first antenna ANT1 and the second antenna ANT2 can be improved.

[0045] In one example, the first end of the signal matching component 11 is electrically connected to the first feed point FB1 via a spring contact, and the second end of the signal matching component 11 is electrically connected to the second feed point FB2 via a spring contact. Thus, in this example, the signal matching component 11 is electrically connected to the first antenna ANT1 and the second antenna ANT2 via spring contacts, eliminating the need for additional leads and achieving a reliable connection.

[0046] See one example. Figure 5 The signal matching component 11 includes a first microstrip line ML1, a second microstrip line ML2, and a matching circuit 50. The first end of the first microstrip line ML1 is electrically connected to the first connection point of the first antenna ANT1, and the second end of the first microstrip line ML1 is electrically connected to the first end of the matching circuit 50. The first end of the second microstrip line ML2 is electrically connected to the second end of the matching circuit 50, and the second end of the second microstrip line ML2 is electrically connected to the second connection point of the second antenna ANT2. Thus, in this example, by setting the matching circuit 50 between the two microstrip lines (ML1 and ML2), the impedance value of the path in which the signal matching component 11 is located can be adjusted, thereby achieving the effect of adjusting the phase and / or phase of the current within the path.

[0047] In one example, see [link to example]. Figure 5The matching circuit 50 includes a switching switch 51 and at least one matching branch 52. The first terminal of the switching switch 51 is electrically connected to the first terminal of the matching circuit 50, and at least one second terminal of the switching switch 51 is sequentially electrically connected to the first terminal of at least one matching branch 52. The second terminals of the at least one matching branch 52 are respectively electrically connected to the second terminal of the matching circuit 50. Thus, in this example, by setting at least one matching branch 52, or in other words, adjusting the number of matching branches 52 according to the type of combination of the first antenna ANT1 and the second antenna ANT2, the impedance value adjustment requirements of the first antenna ANT1 and the second antenna ANT2 under different combined operating scenarios can be met. That is, adjusting to the corresponding matching branch 52 can achieve the effect of fine-tuning the impedance value.

[0048] In one example, the number of switching positions of the aforementioned switch 51 can be set according to the number of matching branches 52. For example, when there are two matching branches 52, the aforementioned switch 51 can be implemented using a single-pole double-throw (SPDT) switch. Alternatively, when there are four matching branches 52, the aforementioned switch 51 can be implemented using a single-pole multi-throw (SP4T) switch, or a combination of two single-pole double-throw (SP2T) switches. Thus, in this example, by adjusting the number of positions within the switch 51, the impedance value requirements in different scenarios can be met.

[0049] In one example, the matching branch 52 includes at least one of the following: at least one capacitor, at least one inductor, or a combination of a capacitor and an inductor. It should be noted that the impedance values ​​of the capacitor and / or inductor can be set according to the scenario. As long as the amplitudes of the first current and the second current are equal (or similar) and the phase difference is 180 degrees (or similar), the corresponding scheme falls within the protection scope of this disclosure.

[0050] In one example, the antenna module also includes a controller (not shown in the figure). The controller is electrically connected to a switch 51. The controller determines the control signal based on the operating frequency bands of the first antenna ANT1 and the second antenna ANT2. For example, when the switch is SP4T, the control signal can be 0001, 0010, 0100, or 1000, and outputs the control signal to the switch 51. In one example, the operating frequency bands of the first antenna ANT1 and the second antenna ANT2, as well as the control signal, can be pre-stored in a control signal lookup table. The controller can determine the control signal by querying the control signal lookup table when the operating frequency band is determined. The switch 51 is used to switch to the matching branch 52 that matches the control signal. In this example, the controller adjusts to the corresponding matching branch, thereby adjusting the impedance value of the matching circuit and improving reliability.

[0051] It should be noted that the above controller can be implemented using devices or circuits with processing capabilities such as processors, microcontrollers, and power management chips. As long as the control signal can be determined based on the operating frequency bands of the two antennas, the implementation scheme of the corresponding controller falls within the protection scope of this disclosure.

[0052] It should be noted that the first antenna ANT1 and the second antenna ANT2 can be antennas of the same frequency or antennas of different frequencies, and can be set according to the specific scenario.

[0053] In one example, the first antenna ANT1 can be a low-frequency antenna LB, operating in the 600-960MHz band; the second antenna ANT2 can also be a low-frequency antenna LB, operating in the 600-960MHz band. In another example, the first antenna ANT1 can be a mid-to-high frequency antenna MHB, operating in the 1500-3000MHz band; the second antenna ANT2 can also be a mid-to-high frequency antenna MHB, operating in the 1500-3000MHz band. In yet another example, the first antenna ANT1 can be a low-frequency antenna LB, operating in the 600-960MHz band; the second antenna ANT2 can also be a mid-to-high frequency antenna MHB, operating in the 1500-3000MHz band.

[0054] In another example, the first antenna ANT1 can be a low-frequency antenna LB, with an operating frequency band of 600-960MHz; the second antenna ANT2 can be an NR antenna, with an operating frequency band of 3300-3800MHz.

[0055] In another example, the first antenna ANT1 can be a mid-to-high frequency antenna MHB, with an operating frequency band of 1500-3000MHz; the second antenna ANT2 can be an NR antenna, with an operating frequency band of 3300-3800MHz.

[0056] In another example, the first antenna ANT1 can be a combination antenna (i.e., a combination of the LB antenna and the NR antenna), with an operating frequency band of 600-960MHz and 3300-3800MHz; the second antenna ANT2 can be a mid-to-high frequency antenna MHB, with an operating frequency band of 1500-3000MHz.

[0057] In another example, the first antenna ANT1 can be a combination antenna 2 (i.e., a combination of the LB antenna and the MHB antenna), with an operating frequency band of 600-960MHz and 1500-3000MHz; the second antenna ANT2 can be an NR antenna, with an operating frequency band of 3300-3800MHz.

[0058] Based on the above antenna module concept, an antenna module is provided, in which the first antenna ANT1 is an LB antenna, and the second antenna ANT2 is a combined antenna, namely a combination of an MHB antenna and an N78 antenna, and its structure is as follows. Figure 6 As shown. See also Figure 6 A first microstrip line ML1, a switching switch 51, a matching branch 52, and a second microstrip line ML2 are arranged between the first feed point FB1 of the first antenna ANT1 and the second feed point FB2 of the second antenna ANT2. The dimensions of the first microstrip line ML1 and the second microstrip line ML2 can be set according to the specific scenario, such as the width of the first microstrip line ML1 and the second microstrip line ML2 being 0.4mm and the total length being 8.5mm.

[0059] In one example, the matching circuit can be configured with four matching branches 52, with impedance values ​​of 3nH, 9nH, 0.5pF, and 12nH, respectively. Adjusting each matching branch individually yields the S-parameters (S-Parameters, i.e., S21 parameters) of the antenna module at different operating frequencies, as shown in the image. Figure 7 As shown. See also Figure 7 The pink, black, red, and blue curves correspond to impedance values ​​of 3nH, 9nH, 0.5pF, and 12nH, respectively. Comparative analysis shows that when the antenna module operates in the 1.2-1.25GHz range, a 9nH matching branch provides high isolation between the two antennas; when operating in the 2-2.2GHz range, a 12nH matching branch provides high isolation; when operating in the 0.8-1.2GHz range, a 0.5pF matching branch provides high isolation; and when operating in the 3.2-4GHz range, a 3nH matching branch provides high isolation. Based on this approach, the matching branch used by the antenna module in each operating frequency band can be determined, or a control signal lookup table can be established to facilitate switching the control switch to the corresponding matching branch.

[0060] Based on the above, it can be seen that the solution disclosed herein can alleviate or solve the problem of strong coupling isolation between two antennas by combining a switching switch and a microstrip line. As the antenna operates in different frequency bands, the switch combined with the microstrip line switches different inductance and capacitance values, that is, the microstrip line, switching switch, and tuning device are used to realize the tuning decoupling pit, so that the high isolation decoupling pit is located within the antenna operating bandwidth. This can realize intelligent decoupling of the first antenna and the second antenna within the antenna module, improve the isolation between the first antenna and the second antenna, and help improve antenna performance.

[0061] exist Figures 1 to 7 Based on the example electronic device, refer to Figure 8The electronic device 800 may also include one or more of the following components: processing component 802, memory 804, power supply component 806, multimedia component 808, audio component 810, input / output (I / O) interface 812, sensor component 814, communication component 816, and image acquisition component 818.

[0062] Processing component 802 typically controls the overall operation of electronic device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 802 may include one or more processors 2920 to execute computer programs. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802. In one example, the processing component includes processor 820, which can be used as a controller for an antenna module to determine control signals based on the operating frequency bands of the first antenna ANT1 and the second antenna ANT2, and output the control signals to a switching switch 51.

[0063] Memory 804 is configured to store various types of data to support the operation of electronic device 800. Examples of such data include computer programs for any application or method operating on electronic device 800, contact data, phone book data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. In one example, memory 804 may store the aforementioned control signal lookup table, facilitating processor 820 to determine control signals from the aforementioned signal lookup table.

[0064] Power supply assembly 806 provides power to various components of electronic device 800. Power supply assembly 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 800. Power supply assembly 806 may include a power chip, with a controller communicating with the power chip to control the power chip to turn a first switching device on or off, allowing the battery to supply power to or from the circuit board circuitry.

[0065] Multimedia component 808 includes a screen that provides an output interface between electronic device 800 and target object.

[0066] In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touchscreen to receive input information from a target object. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation.

[0067] Audio component 810 is configured to output and / or input audio file information. For example, audio component 810 includes a microphone (MIC) configured to receive external audio file information when electronic device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio file information may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio file information.

[0068] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc.

[0069] Sensor assembly 814 includes one or more sensors for providing state assessments of various aspects of electronic device 800. For example, sensor assembly 814 can detect the on / off state of electronic device 800, the relative positioning of components (e.g., the display screen and keypad of electronic device 800), changes in position of electronic device 800 or a component, the presence or absence of a target object in contact with electronic device 800, the orientation or acceleration / deceleration of electronic device 800, and temperature changes of electronic device 800. In this example, sensor assembly 814 may include magnetic sensors, gyroscopes, and magnetic field sensors, and may also include inertial sensors, image sensors, etc., wherein the magnetic field sensor includes at least one of the following: a Hall sensor, a thin-film magnetoresistive sensor, and a magnetic fluid accelerometer.

[0070] Communication component 816 is configured to facilitate wired or wireless communication between electronic device 800 and other devices. Electronic device 800 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast information or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies. In one exemplary embodiment, communication component 816 includes the antenna module described above.

[0071] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital information processors (DSPs), digital information processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, or other electronic components.

[0072] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0073] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An antenna module, characterized by The antenna module includes a signal matching component, a first antenna, and a second antenna; the first antenna and the second antenna are respectively disposed on both sides of the target fracture; the signal matching component is electrically connected to the first antenna and the second antenna respectively; The signal matching component is used to adjust the impedance value of the current path to a target impedance value; the target impedance value satisfies the following: the phase difference between the first current and the second current is greater than or equal to a first phase difference threshold and less than or equal to a second phase difference threshold. The first current refers to the current in the path where the signal matching component is located; the second current refers to the current of the first antenna and the second antenna coupled through the target gap.

2. The antenna module of claim 1, wherein, The first phase difference threshold has a value range of (90, 150) and / or the second phase difference threshold has a value range of (150, 180).

3. The antenna module of claim 1, wherein, The target impedance value also satisfies the following: the amplitude difference between the first current and the second current is greater than or equal to the first amplitude difference threshold and less than or equal to the second amplitude difference threshold.

4. The antenna module of any one of claims 1-3, wherein, The signal matching component includes a first microstrip line, a second microstrip line, and a matching circuit; a first end of the first microstrip line is electrically connected to a first connection point of the first antenna, and a second end of the first microstrip line is electrically connected to a first end of the matching circuit; a first end of the second microstrip line is electrically connected to a second end of the matching circuit, and a second end of the second microstrip line is electrically connected to a second connection point of the second antenna.

5. The antenna module according to claim 4, characterized in that, The first connection point is located at any point on the branch between the first feed point of the first antenna and the target fracture. And / or, The second connection point is located at any point on the branch between the second feed point of the second antenna and the target fracture.

6. The antenna module of claim 4, wherein, The matching circuit includes a switching switch and at least one matching branch; the first end of the switching switch is electrically connected to the first end of the matching circuit, and at least one second end of the switching switch is sequentially electrically connected to the first end of the at least one matching branch; the second end of the at least one matching branch is electrically connected to the second end of the matching circuit.

7. The antenna module of claim 6, wherein, The matching branch includes at least one of the following: at least one capacitor, at least one inductor, or a combination of capacitor and inductor.

8. The antenna module of claim 6, wherein, The antenna module also includes a controller; the controller is electrically connected to the switching switch. The controller is used to determine a control signal based on the operating frequency bands of the first antenna and the second antenna, and output the control signal to the switching switch; The switching switch is used to switch to the matching branch that matches the control signal.

9. An electronic device, characterized in that, The electronic device includes an antenna module and a mid-frame as described in any one of claims 1 to 8; a target gap is provided on the mid-frame; a first branch of the first antenna and a second branch of the second antenna in the antenna module are respectively provided on both sides of the target gap.

10. The electronic device according to claim 9, characterized in that, The electronic device further includes a first signal source and a second signal source; the first signal source is electrically connected to a first feed point of the first antenna; and the second signal source is electrically connected to a second feed point of the second antenna.

11. The electronic device of claim 9, wherein, The electronic device also includes a processor, which is used as a controller for the antenna module.

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