Antenna module and electronic equipment

Abstract

The invention relates to an antenna module and electronic equipment. The antenna module comprises a first radiation branch knot; a breaking joint is arranged between the second radiation branch knot and the first radiation branch knot; the first antenna circuit is connected to the first radiation branch knot and is used for enabling the antenna module to work in a first frequency band; the second antenna circuit and the first antenna circuit are connected to different positions of the first radiation branch knot, and the second antenna circuit is used for enabling the antenna module to work at a second frequency band; the third antenna circuit is connected to the second radiation branch knot and is used for enabling the antenna module to work in a third frequency band; wherein the second antenna circuit at least comprises a grounded first tuning branch; the first tuning branch comprises a first controlled switch and a first inductance component; under the condition that the first inductor assembly is switched to be grounded through the first controlled switch, the antenna module works in the first frequency band, the second frequency band and the third frequency band at the same time. According to the embodiment of the invention, the antenna integration level can be improved.

Description

Technical Field

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

[0002] As electronic device screens and batteries become larger, the space available to house antenna modules within these devices becomes increasingly limited. Furthermore, the increasing performance requirements for antennas in electronic devices necessitate a gradual increase in the number of antennas to improve the user's communication experience. Therefore, how to incorporate more antennas within the constraints of antenna module size has become a pressing issue. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides an antenna module and electronic device that can improve antenna integration.

[0004] According to a first aspect of the present disclosure, an antenna module is provided, comprising:

[0005] First radiating branch;

[0006] The second radiating branch has a gap between it and the first radiating branch;

[0007] A first antenna circuit is connected to the first radiating stub and is used to enable the antenna module to operate in a first frequency band.

[0008] The second antenna circuit is connected to the first antenna circuit at a different position on the first radiating stub, and is used to enable the antenna module to operate in the second frequency band.

[0009] A third antenna circuit is connected to the second radiating stub, used to enable the antenna module to operate in the third frequency band;

[0010] The second antenna circuit includes at least a grounded first tuning branch;

[0011] The first tuning branch includes a first controlled switch and a first inductor assembly;

[0012] When the first inductor component is grounded via the first controlled switch, the antenna module operates simultaneously in the first frequency band, the second frequency band, and the third frequency band.

[0013] In some embodiments, the first antenna circuit includes:

[0014] The first feed source is connected to the first radiating branch;

[0015] The first capacitor assembly and the second inductor assembly are connected to the connection line between the first radiating stub and the first feed source;

[0016] The second capacitor assembly has one end connected to the connection line between the first capacitor assembly and the first feed source, and the other end grounded.

[0017] The second inductor component and the second capacitor component are used together to enable the antenna module to operate in each frequency band included in the first frequency band, and to form a first filter to block the wireless signals of the second frequency band from passing through.

[0018] In some embodiments, the second antenna circuit further includes:

[0019] The second feed source is connected to the first radiating branch;

[0020] The third inductor assembly is connected to the connection line between the first radiating stub and the second feed source;

[0021] The third capacitor assembly has one end connected to the connection line between the third inductor assembly and the second feed source, and the other end grounded.

[0022] The second tuning branch is arranged in parallel with the first tuning branch, and one end of each branch is connected to the connection line between the first radiating stub and the third inductor assembly, while the other end of each branch is grounded.

[0023] The second tuning branch includes a second controlled switch and an impedance component;

[0024] When the impedance component is grounded via the second controlled switch, the operating frequency band of the antenna module is switched from one of the frequency bands included in the first frequency band to another of the frequency bands included in the first frequency band.

[0025] In some embodiments, the second antenna circuit further includes a fourth capacitor assembly;

[0026] The fourth capacitor assembly has one end connected to the second tuning branch at a different location on the connection line between the third inductor assembly and the first radiating branch, and the other end is grounded.

[0027] or,

[0028] The third antenna circuit further includes a third tuning branch, one end of which is connected to the connection line between the third inductor component and the first radiating stub, and the other end is grounded; the third tuning branch includes a third controlled switch and the fourth capacitor component.

[0029] In some embodiments, the second antenna circuit further includes:

[0030] The fifth capacitor assembly is connected to the connection line between the third inductor assembly and the second feed source;

[0031] The fourth inductor component has one end connected to the third capacitor component at different positions on the connection line between the fifth capacitor component and the second feed source, and the other end grounded.

[0032] The fifth capacitor component and the fourth inductor component can form a second filter to block the wireless signal of the first frequency band from passing through;

[0033] The third inductor component, the fourth capacitor component, and / or the fourth inductor component are used together to tune the impedance of the second antenna circuit and the resonant frequency of the antenna module.

[0034] In some embodiments, the third antenna circuit includes:

[0035] The third feed source is connected to the second radiating branch;

[0036] The sixth capacitor assembly is connected to the connection line between the second radiating stub and the third feed source;

[0037] The fifth inductor component has one end connected to the connection line between the sixth capacitor component and the second radiating stub, and the other end grounded.

[0038] Wherein, the capacitance value of the sixth capacitor component is less than 0.5 picofarads; and / or, the inductance value of the fifth inductor component is less than 2 nanohenries.

[0039] In some embodiments, the third antenna circuit further includes:

[0040] The sixth inductor component is connected to the connection line between the sixth capacitor component and the third feed source;

[0041] The seventh inductor component and the seventh capacitor component are connected at one end to different positions on the connection line between the sixth inductor component and the third feed source, and the other end is grounded.

[0042] The sixth inductor component, the seventh inductor component, and the seventh capacitor component are used together to tune the impedance of the third antenna circuit and the resonant frequency of the antenna module.

[0043] In some embodiments, the first antenna circuit is connected to a first position of the first radiating stub;

[0044] The second antenna circuit is connected to the second position of the first radiating stub;

[0045] The second position is located between the first position and the fracture.

[0046] In some embodiments, the first frequency band includes a first cellular frequency band and a global positioning frequency band;

[0047] The second frequency band includes a second cellular frequency band and a first wireless fidelity frequency band, wherein the center frequency of the second cellular frequency band is greater than the center frequency of the first cellular frequency band;

[0048] The third frequency band includes a second wireless fidelity band, the center frequency of which is greater than the center frequency of the first wireless fidelity band.

[0049] In some embodiments, the length of the second radiating branch is less than 5 mm.

[0050] According to a second aspect of the present disclosure, an electronic device is provided, comprising: the antenna module described in the first aspect above.

[0051] In some embodiments, the first and second radiating stubs of the antenna module are disposed on the same side of the electronic device.

[0052] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0053] This embodiment of the disclosure enables the antenna module to operate in the first, second, and third frequency bands by setting up a first antenna circuit, a second antenna circuit, and a third antenna circuit, thereby improving the antenna integration. Furthermore, this embodiment of the disclosure sets up a first tuning branch in the second antenna circuit, and switches the grounding of the first inductor component through a first controlled switch in the first tuning branch. By setting up the first inductor component, the impact on the antenna module's operation in the second frequency band during tuning can be reduced, thus better enabling the antenna module to operate simultaneously in the first, second, and third frequency bands, improving the antenna module's transmit and receive performance.

[0054] 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

[0055] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0056] Figure 1 This is a schematic diagram of the structure of an antenna module according to an exemplary embodiment.

[0057] Figure 2 This is a schematic diagram of the structure of a first antenna circuit in an antenna module according to an exemplary embodiment.

[0058] Figure 3This is a schematic diagram of the structure of a second antenna circuit in an antenna module according to an exemplary embodiment.

[0059] Figure 4 This is a schematic diagram of the structure of a third antenna circuit in an antenna module according to an exemplary embodiment.

[0060] Figure 5A This is a schematic diagram of the structure of an electronic device according to an exemplary embodiment.

[0061] Figure 5B This is a simulation diagram illustrating an electronic device transmitting and receiving different frequency bands according to an exemplary embodiment.

[0062] Figure 6 This is a structural block diagram of an electronic device according to an exemplary embodiment. Detailed Implementation

[0063] 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 and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0064] This disclosure provides an antenna module. This antenna module is applied in communication scenarios where a single radiating stub transmits and receives multiple different wireless signals. For example, when an electronic device with this antenna module needs location services, it can use the antenna module of this disclosure to transmit and receive GPS signals. As another example, when an electronic device with this antenna module needs to make video calls, it can use the antenna module of this disclosure to transmit and receive cellular mobile signals or Wi-Fi signals.

[0065] Figure 1 This is a schematic diagram illustrating the structure of an antenna module according to an exemplary embodiment. For example... Figure 1 As shown, the antenna module includes:

[0066] First radiating branch 101;

[0067] The second radiating branch 102 has a gap 103 between it and the first radiating branch 101;

[0068] The first antenna circuit 300 is connected to the first radiating stub 101 and is used to enable the antenna module to operate in the first frequency band.

[0069] The second antenna circuit 400 is connected to the first antenna circuit 300 at different positions of the first radiating stub 101 to enable the antenna module to operate in the second frequency band.

[0070] The third antenna circuit 500 is connected to the second radiating stub 102 and is used to enable the antenna module to operate in the third frequency band.

[0071] The second antenna circuit 400 includes at least a grounded first tuning branch;

[0072] The first tuning branch includes a first controlled switch and a first inductor assembly;

[0073] When the first inductor component is grounded via the first controlled switch, the antenna module operates simultaneously in the first frequency band, the second frequency band, and the third frequency band.

[0074] In this embodiment of the disclosure, the antenna module is applied in an electronic device to transmit and receive radio waves to transmit and exchange wireless signals.

[0075] It should be noted that, as Figure 1 As shown, forming a slit 103 on the radiating branch 100 can isolate the radiating branch 100 to form a first radiating branch 101 and a second radiating branch 102. Here, the radiating branch can be formed by reusing the conductive frame of the electronic device, or it can be formed by laser direct forming, or it can be made of a flexible circuit board. The embodiments disclosed herein are not limited to this.

[0076] The shape and size of the aforementioned radial branches can be set according to actual needs, and this disclosure does not limit this. For example, the shape of the radial branches can be set as strip-shaped or arc-shaped. As another example, the size of the radial branches can be set between 10 mm and 50 mm.

[0077] The location of the aforementioned fracture can be set according to the operating frequency band of the first or second radiating branch, and this embodiment of the present disclosure does not impose any limitations on this. For example, the distance from the fracture to one end of the first radiating branch can be set according to the operating frequency band of the first radiating branch. Similarly, the distance from the fracture to one end of the second radiating branch can be set according to the operating frequency band of the second radiating branch.

[0078] It should be noted that the shape and size of the fracture can be set according to actual needs, and the embodiments disclosed herein do not impose any restrictions on this.

[0079] In this embodiment, insulating material can be filled at the gap, which not only reduces mutual interference when the antenna module transmits and receives different signals, but also improves the structural integrity of the antenna module. The insulating material includes, but is not limited to, plastics, rubber, ceramics, liquid crystal polymers, or glass fiber reinforced plastics.

[0080] The antenna module is equipped with a first antenna circuit, a second antenna circuit, and a third antenna circuit, enabling the antenna module to operate in the first, second, and third frequency bands, thereby improving the antenna integration.

[0081] It should be noted that the first frequency band, the second frequency band, and the third frequency band are three different frequency bands. For example, the first frequency band, the second frequency band, and the third frequency band may each include different frequency bands of the same type of antenna, or they may each include different frequency bands of different types of antennas; this disclosure does not impose any limitations on this. As another example, the center frequency of the first frequency band is lower than the center frequency of the second frequency band, and the center frequency of the second frequency band is lower than the center frequency of the third frequency band.

[0082] In this embodiment of the disclosure, the first antenna circuit, the second antenna circuit, and the third antenna circuit may each be composed of at least one capacitor, at least one controlled switch, and / or at least one inductor cascaded together, and this embodiment of the disclosure does not limit this.

[0083] It should be noted that the connection relationship between the capacitors and inductors constituting the first antenna circuit is different from that of the capacitors and inductors constituting the second antenna circuit; and the connection relationship between the capacitors and inductors constituting the second antenna circuit is different from that of the capacitors and inductors constituting the third antenna circuit.

[0084] In some embodiments, the first frequency band includes a first cellular frequency band and a global positioning frequency band;

[0085] The second frequency band includes a second cellular frequency band and a first wireless fidelity frequency band, wherein the center frequency of the second cellular frequency band is greater than the center frequency of the first cellular frequency band;

[0086] The third frequency band includes a second wireless fidelity band, the center frequency of which is greater than the center frequency of the first wireless fidelity band.

[0087] In this embodiment of the disclosure, the first cellular frequency band includes: a low-frequency cellular frequency band. The low-frequency band includes at least: the B5 band, the B8 band, the B28 band, etc.

[0088] The aforementioned second cellular frequency band includes mid-to-high frequency cellular frequency bands. Among them, the mid-to-high frequency band includes at least the N78 band and the N79 band.

[0089] The aforementioned Global Positioning System (GPS) frequency bands include different L-bands. For example, it could be the L5 band within the GPS frequency bands. The center frequency of this L5 band could be 1176.45 MHz.

[0090] The aforementioned first wireless fidelity (Wi-Fi) band includes the 2.4 GHz wireless fidelity band.

[0091] The aforementioned second wireless fidelity band includes the 5G wireless fidelity band.

[0092] In this embodiment, the second antenna circuit and the first antenna circuit are located at different positions on the first radiating stub. Here, the locations of the second antenna circuit and the first antenna circuit on the first radiating stub can be determined based on the first frequency band and the second frequency band; this embodiment does not impose any limitations on this.

[0093] In some embodiments, such as Figure 1 As shown, the first antenna circuit 300 is connected to the first position 104 of the first radiating stub 101;

[0094] The second antenna circuit 400 is connected to the second position 105 of the first radiating stub 101;

[0095] The second position 105 is located between the first position 104 and the fracture 103.

[0096] It is understandable that by setting the second position between the first position and the slit, the first radiating branch can better transmit and receive the first and second frequency bands.

[0097] In this embodiment of the disclosure, the first antenna circuit can enable the antenna module to operate simultaneously in various frequency bands included in the first frequency band through its own impedance matching. For example, the antenna module can operate simultaneously in the first cellular frequency band and the global positioning frequency band.

[0098] The aforementioned second antenna circuit can also enable the antenna module to operate simultaneously in the second cellular band and the first wireless fidelity band through its own impedance matching.

[0099] It is understandable that by setting the first antenna circuit and the second antenna circuit to be connected to different positions of the first radiating stub located on the first side of the fracture, the first radiating stub can be used to transmit and receive cellular mobile signals, GPS signals and wireless fidelity signals of different frequency bands, thereby improving the antenna integration.

[0100] In this embodiment, the third antenna circuit is connected to the second radiating stub, enabling the second radiating stub to operate in the third frequency band. It is evident that the first and second antenna circuits are connected to different stubs than the third antenna circuit.

[0101] It should be noted that the third antenna circuit can enable the antenna module to operate in the third frequency band through its own impedance matching.

[0102] In this embodiment, the center frequency of the wireless fidelity signal transmitted and received by the second radiating stub is greater than the center frequency of the wireless fidelity signal transmitted and received by the first radiating stub. Furthermore, the length of the radiating stub is negatively correlated with the frequency of the wireless signal transmitted and received by the antenna. Therefore, the length of the second radiating stub needs to be less than the length of the first radiating stub.

[0103] Here, in some embodiments, such as Figure 1 As shown, the length of the second radiating branch 102 is less than 5 mm. In other embodiments, the length of the first radiating branch is greater than 5 mm.

[0104] Understandably, the center frequency of the fourth frequency band is higher than that of the third frequency band. Therefore, by incorporating a third antenna circuit, the second radiating stub can transmit and receive higher-frequency wireless fidelity signals, thereby enabling the antenna module to transmit and receive wireless fidelity signals from two different frequency bands, further improving antenna integration.

[0105] In this embodiment, considering that tuning the antenna module to operate in the first frequency band might affect its operation in the second frequency band, this embodiment proposes setting a first tuning branch on the second antenna circuit. Instead of grounding through a capacitor, the grounding is switched to a first inductor component via a first controlled switch. This reduces the impact on the antenna module's operation in the second frequency band, thereby achieving better coexistence of the first and second frequency bands. In other words, grounding the first inductor component allows the antenna module to operate better simultaneously in the first, second, and third frequency bands.

[0106] For example, the antenna module can better operate simultaneously in the B28 band, the 2.4G Wi-Fi band, and the 5G Wi-Fi band; or, the antenna module can better operate simultaneously in the B28 band, the N78 cellular band, and the 5G Wi-Fi band.

[0107] In this embodiment of the disclosure, the first inductor component may be formed by connecting one or more inductor devices in series and parallel, and this embodiment of the disclosure does not limit this.

[0108] It is understood that by setting up a first antenna circuit, a second antenna circuit, and a third antenna circuit in this embodiment, the antenna module can operate in the first frequency band, the second frequency band, and the third frequency band, thereby improving the antenna integration. Furthermore, this embodiment sets up a first tuning branch in the second antenna circuit and switches the grounding of the first inductor component through a first controlled switch in the first tuning branch. By setting up the first inductor component, the impact on the antenna module's operation in the second frequency band during tuning can be reduced, thus better enabling the antenna module to operate simultaneously in the first, second, and third frequency bands, improving the antenna module's transmit and receive performance.

[0109] In some embodiments, such as Figure 1 and Figure 2 As shown, the first antenna circuit 300 includes:

[0110] The first feed source A is connected to the first radiating branch 101;

[0111] The first capacitor assembly C1 and the second inductor assembly L1 are connected to the connection line between the first radiating stub 101 and the first feed source A.

[0112] The second capacitor assembly C2 has one end connected to the connection line between the first capacitor assembly C1 and the first feed source A, and the other end grounded.

[0113] The second inductor component L1 and the second capacitor component C2 are used together to enable the antenna module to operate in each frequency band included in the first frequency band, and to form a first filter to block the wireless signals of the second frequency band from passing through.

[0114] In this embodiment of the disclosure, the first feed source is a feed source for both cellular mobile signals and global positioning signals.

[0115] Both the first capacitor assembly and the second capacitor assembly mentioned above can be formed by connecting one or more capacitors in series and parallel.

[0116] The aforementioned second inductor component can be formed by connecting one or more inductor devices in series and parallel.

[0117] In this embodiment of the present disclosure, the second inductor component and the second capacitor component can form a first filter. Here, the first filter can be configured to allow signals with frequencies less than or equal to a first preset frequency to pass through, but to block signals with frequencies greater than the first preset frequency from passing through.

[0118] It should be noted that the first preset frequency can be lower than the minimum frequency in the second frequency band and lower than the minimum frequency in the third frequency band. At the same time, the first preset frequency needs to be greater than the maximum frequency in the first frequency band.

[0119] Here, the first preset frequency can be set to 2GHz. That is to say, the first filter formed by the second inductor and the second capacitor can filter out resonant frequency signals above 2GHz.

[0120] In this embodiment of the disclosure, the second inductor and the second capacitor can be matched during the setting of the second inductor and the second capacitor, thereby enabling the first radiating branch to simultaneously transmit and receive the cellular frequency band and the global positioning frequency band included in the first frequency band.

[0121] It should be noted that, in order to better enable the first radiating stub to work under the action of the first antenna circuit, the impedance component is not connected to ground on the connection line between the first capacitor component and the first radiating stub in the first antenna circuit.

[0122] It is understandable that the first filter formed by the second inductor component and the second capacitor component can not only enable the antenna module to operate simultaneously in all frequency bands included in the first frequency band through impedance matching, but also block the passage of wireless signals in the second frequency band, thereby reducing the impact on the transmission and reception of wireless signals in the second frequency band and improving the transmission and reception performance of the antenna module operating in the second frequency band.

[0123] In some embodiments, such as Figure 1 and Figure 3 As shown, the second antenna circuit 400 includes:

[0124] The second feed source B is connected to the first radiating branch 101;

[0125] The third inductor component L2 is connected to the connection line between the first radiating stub 101 and the second feed source B;

[0126] The third capacitor component C3 has one end connected to the connection line between the third inductor component L2 and the second feed source B, and the other end grounded.

[0127] The second tuning branch is arranged in parallel with the first tuning branch, and one end of both is connected to the connection line between the first radiating stub 101 and the third inductor component L2; the other end of both is grounded.

[0128] The second tuning branch includes a second controlled switch and an impedance component;

[0129] When the impedance component is grounded via the second controlled switch, the operating frequency band of the antenna module is switched from one of the frequency bands included in the first frequency band to another of the frequency bands included in the first frequency band.

[0130] In this embodiment of the disclosure, the second feed source is a feed source for both cellular mobile signals and wireless fidelity signals.

[0131] The aforementioned third inductor assembly can be formed by connecting one or more inductor devices in series and parallel. The aforementioned third capacitor assembly can be formed by connecting one or more capacitor devices in series and parallel.

[0132] In this embodiment of the disclosure, the second tuning branch may include at least one, and the impedance component connected to each second tuning branch may include at least one capacitor, or may include a combination of at least one capacitor and at least one inductor. This embodiment of the disclosure does not limit this.

[0133] It should be noted that when there are multiple second tuning branches, the multiple second controlled switches based on the multiple second tuning branches have different switching states, which can realize that the antenna module has different impedance states, thereby enabling the antenna module to switch from one frequency band included in the first frequency band to another frequency band included in the first frequency band.

[0134] In this embodiment of the disclosure, with multiple second controlled switches of multiple second tuning branches in different switching states, the antenna module can switch between various frequency bands included in the first frequency band. Furthermore, by changing the switching state of the first controlled switch, the antenna module can also operate simultaneously in the first frequency band and the second frequency band.

[0135] For example, by switching the on / off state of the first controlled switch, the antenna module can simultaneously transmit and receive cellular mobile signals in the B28 band and wireless fidelity signals in the 2.4G band.

[0136] For example, by switching the state of the first controlled switch, the antenna module can simultaneously transmit and receive GPS signals and 2.4G frequency band wireless fidelity signals.

[0137] For example, by switching the state of the second controlled switch, the antenna module can switch between global positioning signals and cellular mobile signals in the B28 band.

[0138] For example, by switching the state of the second controlled switch, the antenna module can switch between various frequency bands such as B5, B8, and B28.

[0139] It is understandable that by setting the first controlled switch to ground the first inductor component and by setting the second controlled switch to ground the impedance component, the antenna module can not only operate in multiple frequency bands at the same time, but also switch between multiple frequency bands included in the first frequency band. This makes the antenna module more flexible in operating in different frequency bands and expands the working scenarios of the antenna module.

[0140] In some embodiments, such as Figure 1 and Figure 3 As shown, the second antenna circuit 400 also includes a fourth capacitor component C4;

[0141] The fourth capacitor component C4 has one end connected to the second tuning branch at a different position on the connection line between the third inductor component L2 and the first radiating branch 101, and the other end is grounded.

[0142] Alternatively, the third antenna circuit may further include a third tuning branch, one end of which is connected to the connection line between the third inductor assembly and the first radiating stub, and the other end is grounded; the third tuning branch includes a third controlled switch and the fourth capacitor assembly.

[0143] In this embodiment, the third tuning branch can be connected in parallel with the second tuning branch and the first tuning branch, respectively. The fourth capacitor assembly can be formed by connecting one or more capacitors in series and parallel, and this embodiment does not limit this.

[0144] It should be noted that the fourth capacitor component can be impedance matched together with the third inductor component, the fourth inductor component, and the third capacitor component, enabling the antenna module to communicate at maximum transmit power. It can also be impedance matched together with the third inductor component and the third capacitor component, enabling the antenna module to communicate at maximum transmit power. Thus, impedance matching reduces antenna loss and improves the transmit and receive performance of the antenna module.

[0145] Understandably, the second antenna circuit can be configured to ground the fourth capacitor component independently, or it can be configured to connect to a third controlled switch to switch the grounding of the fourth capacitor component. This allows for more flexible configuration of the fourth capacitor component.

[0146] In some embodiments, such as Figure 1 and Figure 3 As shown, the second antenna circuit 400 further includes:

[0147] The fifth capacitor component C5 is connected to the connection line between the third inductor component L2 and the second feed source B;

[0148] The fourth inductor component L3 has one end connected to the third capacitor component C3 at different positions on the connection line between the fifth capacitor component C5 and the second feed source B, and the other end is grounded.

[0149] The fifth capacitor component C5 and the fourth inductor component L3 can form a second filter to block the passage of wireless signals in the first frequency band;

[0150] The third inductor component, the fourth capacitor component, and / or the fourth inductor component are used together to tune the impedance of the second antenna circuit and the resonant frequency of the antenna module.

[0151] The aforementioned fifth capacitor assembly can be formed by connecting one or more capacitors in series and parallel.

[0152] The aforementioned fourth inductor component can be formed by connecting one or more inductor devices in series and parallel.

[0153] In this embodiment, the fifth capacitor assembly and the fourth inductor assembly can form a second filter. Here, the second filter can be configured to allow signals with frequencies greater than a second preset frequency to pass through, but block signals with frequencies less than or equal to the second preset frequency from passing through.

[0154] It should be noted that the second preset frequency can be greater than the maximum frequency in the first frequency band. At the same time, the second preset frequency must be less than or equal to the minimum frequency in the second frequency band and the minimum frequency in the third frequency band.

[0155] Here, the second preset frequency and the first preset frequency can be the same, both set to 2GHz. That is to say, the second filter formed by the fifth capacitor component and the fourth inductor component can filter out resonant frequency signals below 2GHz.

[0156] In this embodiment of the disclosure, the fourth inductor component can not only be used to form the second filter, but also to switch the resonant frequency, so that the antenna can transmit and receive 2.4G band wireless fidelity signals or N78 band cellular signals.

[0157] Understandably, the second filter formed by the fifth capacitor component and the fourth inductor component can block the wireless signal of the first frequency band from passing through, thereby reducing the impact on the wireless signal of the first frequency band and improving the transceiver performance of the first frequency band.

[0158] Furthermore, the embodiments of this disclosure not only allow for tuning of the impedance of the second antenna circuit and the resonant frequency of the antenna module using the third inductor component, the fourth capacitor component, and the third capacitor component, but also allow for tuning of the impedance of the second antenna circuit and the resonant frequency of the antenna module using the third inductor component, the fourth capacitor component, the third capacitor component, and the fourth inductor component. This makes the impedance matching and resonant frequency tuning of the antenna module more flexible.

[0159] In addition, in this embodiment of the present disclosure, there is no inductor (such as an inductor with an inductance value of less than 20 nanohenries) connected in parallel on the connection line between the fifth capacitor component and the first radiating stub. Instead, the fourth inductor component is connected in parallel on the connection line between the fifth capacitor component and the second feed source. This can reduce the impact on the cellular mobile signal of the first frequency band (e.g., the N28 frequency band) and improve the transceiver performance of the first frequency band.

[0160] For example, such as Figure 1 , Figure 2 and Figure 3 As shown, if the first radiating stub 101 operates under the action of the second antenna circuit 400, then the first capacitor component C1 on the first antenna circuit 300 can be considered an open circuit. If the first radiating stub 101 operates under the action of the first antenna circuit 300, then the fifth capacitor component C5 on the second antenna circuit 400 can be considered an open circuit.

[0161] In this way, the mutual coupling effect between the first radiating stubs in different operating frequency bands can be reduced, and the efficiency dips that occur when the first radiating stubs operate under the action of the first antenna circuit and the second antenna circuit respectively can be reduced.

[0162] Here, the capacitance values ​​of the first capacitor component and the second capacitor component can be determined based on the operating frequency band of the first radiating stub and the length of the first radiating stub, so that the first capacitor component can be equivalent to an open circuit and the fifth capacitor component can be equivalent to an open circuit. This disclosure does not limit this.

[0163] In some embodiments, such as Figure 1 and Figure 4 As shown, the third antenna circuit 500 includes:

[0164] The third feed source C is connected to the second radiating branch 102;

[0165] The sixth capacitor assembly C6 is connected to the connection line between the second radiating stub 102 and the third feed source C;

[0166] The fifth inductor component L4 is connected at one end to the connection line between the sixth capacitor component C6 and the second radiating branch 102, and at the other end to ground;

[0167] Wherein, the capacitance value of the sixth capacitor component C6 is less than 0.5 picofarads; and / or, the inductance value of the fifth inductor component L4 is less than 2 nanohenries.

[0168] In this embodiment of the disclosure, the third feed source is a wireless fidelity signal feed source.

[0169] The aforementioned sixth capacitor assembly may be formed by connecting one or more capacitors in series and parallel; the aforementioned fifth inductor assembly may be formed by connecting one or more inductors in series and parallel.

[0170] Understandably, the capacitance of the sixth capacitor component is set to be less than 0.5 pF. Thus, if the first radiating stub operates under the influence of the second antenna circuit, the sixth capacitor component can be effectively considered an open circuit, reducing the efficiency dip that occurs when the first radiating stub operates under the influence of the second antenna circuit.

[0171] Furthermore, the inductance of the fifth inductor component is set to be less than 2 nanohenries (NH). Thus, if the first radiating stub operates under the action of the second antenna circuit (e.g., the first radiating stub operates in the second frequency band), the fifth inductor component can be effectively short-circuited, thereby improving the performance of the first radiating stub operating under the action of the second antenna circuit.

[0172] In some embodiments, such as Figure 1 and Figure 4 As shown, the third antenna circuit 500 further includes:

[0173] The sixth inductor component L5 is connected to the connection line between the sixth capacitor component C6 and the third feed source C;

[0174] The seventh inductor component L6 and the seventh capacitor component C7 are connected at one end to different positions on the connection line between the sixth inductor component L5 and the third feed source C, and the other end is grounded.

[0175] The sixth inductor component L5, the seventh inductor component L6, and the seventh capacitor component C7 are used together to tune the impedance of the third antenna circuit 500 and the resonant frequency of the antenna module.

[0176] In this embodiment of the disclosure, the sixth inductor component and the seventh inductor component may each be formed by connecting one or more inductor devices in series and parallel. The seventh capacitor component may each be formed by connecting one or more capacitor devices in series and parallel.

[0177] Understandably, the sixth inductor, the seventh inductor, and the seventh capacitor are used together to tune the impedance of the third antenna circuit and the resonant frequency of the antenna module. This allows the antenna module to operate with 5G frequency band wireless fidelity signals while also enabling communication at maximum transmit power, reducing antenna loss, and improving the transceiver performance of the antenna module.

[0178] This disclosure also provides an electronic device. Figure 5A This is a schematic diagram illustrating the structure of an electronic device according to an exemplary embodiment. For example... Figure 5A As shown, the electronic device includes the antenna module 10 in one or more of the above embodiments.

[0179] The aforementioned electronic devices include: smartphones, tablets, laptops, wearable devices, and personal digital assistants (PDAs). Wearable devices include, but are not limited to, smartwatches or smart bracelets.

[0180] In this embodiment of the disclosure, the electronic device has a top and sides.

[0181] In some embodiments, the first and second radiating stubs of the antenna module are disposed on the same side of the electronic device.

[0182] Here, as Figure 5A As shown, the side of the electronic device may include a first side 51 and a second side 52. The electronic device also includes a camera module 53. The distance from the first side 51 to the camera module 53 is less than the distance from the second side 52 to the camera module 53. Here, the first radiating stub and the second radiating stub may be disposed on the first side, and the radiating stub 100 of the antenna module 10 composed of the first radiating stub and the second radiating stub may be disposed on the first side 51 near the camera module 53.

[0183] It should be noted that, as Figure 5A As shown, the distance from the location where the first antenna circuit 300 connects to the radiating stub 100 to the top 54 of the electronic device is less than the distance from the location where the third antenna circuit 500 connects to the radiating stub 100 to the top 54 of the electronic device. The location where the second antenna circuit 400 connects to the radiating stub 100 is between the locations where the first antenna circuit 300 connects to the radiating stub 100 and the third antenna circuit 500 connects to the radiating stub 100.

[0184] For example, Figure 5B This is a simulation diagram illustrating the transmission and reception of different frequency bands by an electronic device according to an exemplary embodiment. Figure 5B As shown, the horizontal axis represents frequency in GHz, and the vertical axis represents gain in dB. Electronic devices can transmit and receive cellular mobile signals in the B5, B8, B28, and N78 bands, as well as GPS signals, 2.4 GHz Wi-Fi signals, and 5 GHz Wi-Fi signals via radiating stubs with gaps.

[0185] It is understood that electronic devices include antenna modules. By configuring a first antenna circuit, a second antenna circuit, and a third antenna circuit within the antenna module, the antenna module can operate in a first frequency band, a second frequency band, and a third frequency band, thereby improving antenna integration. Furthermore, in this embodiment, a first tuning branch is configured in the second antenna circuit, and a first controlled switch in the first tuning branch switches the grounding of the first inductor component. By configuring the first inductor component, the impact on the antenna module's operation in the second frequency band during tuning can be reduced, thus better enabling the antenna module to operate simultaneously in the first, second, and third frequency bands, improving the antenna module's transmit and receive performance.

[0186] Figure 6This is a structural block diagram of an electronic device according to an exemplary embodiment. For example, the electronic device may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0187] Reference Figure 6 The electronic device may include one or more of the following components: processing component 602, memory 604, power supply component 606, multimedia component 608, audio component 610, input / output (I / O) interface 612, sensor component 614, and communication component 616.

[0188] Processing component 602 typically controls the overall operation of an electronic device, such as operations associated with at least one of display, telephone call, data communication, camera operation, and recording operation. Processing component 602 may include one or more processors 620 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 602 may include one or more modules to facilitate interaction between processing component 602 and other components. For example, processing component 602 may include a multimedia module to facilitate interaction between multimedia component 608 and processing component 602.

[0189] Memory 604 is configured to store various types of data to support operation on an electronic device. Examples of such data include at least one of the following: instructions for any application or method operating on the electronic device, contact data, phonebook data, messages, pictures, and videos. Memory 604 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.

[0190] Power supply component 606 provides power to various components of an electronic device. Power supply component 606 may include at least one of the following: a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device.

[0191] Multimedia component 608 includes a screen that provides an output interface between the electronic device and the user. 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 may be implemented as a touchscreen to receive input signals from the user. The Touch Panel includes one or more touch sensors to sense touches, swipes, and gestures on the Touch Panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 608 includes a front-facing camera and / or a rear-facing camera. When the electronic device is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0192] Audio component 610 is configured to output and / or input audio signals. For example, audio component 610 includes a microphone (MIC) configured to receive external audio signals when the electronic device is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 604 or transmitted via communication component 616. In some embodiments, audio component 610 also includes a speaker for outputting audio signals.

[0193] I / O interface 612 provides an interface between processing component 602 and peripheral interface modules, such as keyboards, click wheels, and buttons. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0194] Sensor assembly 614 includes one or more sensors for providing state assessments of various aspects of the electronic device. For example, sensor assembly 614 can detect the on / off state of the electronic device, the relative positioning of components such as the display and keypad of the electronic device, changes in the position of the electronic device or a component within the electronic device, the presence or absence of user contact with the electronic device, the orientation or acceleration / deceleration of the electronic device, and temperature changes of the electronic device. Sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 614 may also include an optical sensor, such as a Complementary Metal Oxide Semiconductor (CMOS) or Charge Coupled Device (CCD) image sensor, for use in imaging applications. In some embodiments, sensor assembly 614 may also include, but is not limited to, at least one of the following: an accelerometer, a gyroscope, a magnetometer, a pressure sensor, and a temperature sensor.

[0195] Communication component 616 is configured to facilitate wired or wireless communication between electronic devices and other devices. The electronic devices can access wireless networks based on communication standards, such as Wi-Fi, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 616 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 616 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), Infrared Data Association (IrDA), Ultra Wide Band (UWB), Bluetooth (BT), and other technologies.

[0196] In an exemplary embodiment, the electronic device may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0197] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure 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 claims.

[0198] 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 in that, include: First radiating branch; The second radiating branch has a gap between it and the first radiating branch; A first antenna circuit is connected to the first radiating stub and is used to enable the antenna module to operate in a first frequency band. The second antenna circuit is connected to the first antenna circuit at a different position on the first radiating stub, and is used to enable the antenna module to operate in the second frequency band. A third antenna circuit is connected to the second radiating stub, used to enable the antenna module to operate in the third frequency band; The second antenna circuit includes at least a grounded first tuning branch; The first tuning branch includes a first controlled switch and a first inductor assembly; When the first inductor component is grounded via the first controlled switch, the antenna module operates simultaneously in the first frequency band, the second frequency band, and the third frequency band.

2. The antenna module according to claim 1, characterized in that, The first antenna circuit includes: The first feed source is connected to the first radiating branch; The first capacitor assembly and the second inductor assembly are connected to the connection line between the first radiating stub and the first feed source; The second capacitor assembly has one end connected to the connection line between the first capacitor assembly and the first feed source, and the other end grounded. The second inductor component and the second capacitor component are used together to enable the antenna module to operate in each frequency band included in the first frequency band, and to form a first filter to block the wireless signals of the second frequency band from passing through.

3. The antenna module according to claim 1, characterized in that, The second antenna circuit also includes: The second feed source is connected to the first radiating branch; The third inductor assembly is connected to the connection line between the first radiating stub and the second feed source; The third capacitor assembly has one end connected to the connection line between the third inductor assembly and the second feed source, and the other end grounded. The second tuning branch is arranged in parallel with the first tuning branch, and one end of each branch is connected to the connection line between the first radiating stub and the third inductor assembly, while the other end of each branch is grounded. The second tuning branch includes a second controlled switch and an impedance component; When the impedance component is grounded via the second controlled switch, the operating frequency band of the antenna module is switched from one of the frequency bands included in the first frequency band to another of the frequency bands included in the first frequency band.

4. The antenna module according to claim 3, characterized in that, The second antenna circuit also includes a fourth capacitor assembly; The fourth capacitor assembly has one end connected to the second tuning branch at a different location on the connection line between the third inductor assembly and the first radiating branch, and the other end is grounded. or, The third antenna circuit further includes a third tuning branch, one end of which is connected to the connection line between the third inductor component and the first radiating stub, and the other end is grounded; the third tuning branch includes a third controlled switch and the fourth capacitor component.

5. The antenna module according to claim 3, characterized in that, The second antenna circuit also includes: The fifth capacitor assembly is connected to the connection line between the third inductor assembly and the second feed source; The fourth inductor component has one end connected to the third capacitor component at different positions on the connection line between the fifth capacitor component and the second feed source, and the other end grounded. The fifth capacitor component and the fourth inductor component can form a second filter to block the wireless signal of the first frequency band from passing through; The third inductor component, the fourth capacitor component, and / or the fourth inductor component are used together to tune the impedance of the second antenna circuit and the resonant frequency of the antenna module.

6. The antenna module according to claim 1, characterized in that, The third antenna circuit includes: The third feed source is connected to the second radiating branch; The sixth capacitor assembly is connected to the connection line between the second radiating stub and the third feed source; The fifth inductor component has one end connected to the connection line between the sixth capacitor component and the second radiating stub, and the other end grounded. Wherein, the capacitance value of the sixth capacitor component is less than 0.5 picofarads; and / or, the inductance value of the fifth inductor component is less than 2 nanohenries.

7. The antenna module according to claim 6, characterized in that, The third antenna circuit also includes: The sixth inductor component is connected to the connection line between the sixth capacitor component and the third feed source; The seventh inductor component and the seventh capacitor component are connected at one end to different positions on the connection line between the sixth inductor component and the third feed source, and the other end is grounded. The sixth inductor component, the seventh inductor component, and the seventh capacitor component are used together to tune the impedance of the third antenna circuit and the resonant frequency of the antenna module.

8. The antenna module according to any one of claims 1 to 7, characterized in that, The first antenna circuit is connected to the first position of the first radiating stub; The second antenna circuit is connected to the second position of the first radiating stub; The second position is located between the first position and the fracture.

9. The antenna module according to any one of claims 1 to 7, characterized in that, The first frequency band includes a first cellular frequency band and a global positioning frequency band; The second frequency band includes a second cellular frequency band and a first wireless fidelity frequency band, wherein the center frequency of the second cellular frequency band is greater than the center frequency of the first cellular frequency band; The third frequency band includes a second wireless fidelity band, the center frequency of which is greater than the center frequency of the first wireless fidelity band.

10. The antenna module according to any one of claims 1 to 7, characterized in that, The length of the second radiating branch is less than 5 millimeters.

11. An electronic device, characterized in that, include: The antenna module as described in any one of claims 1 to 10.

12. The electronic device according to claim 11, characterized in that, The first and second radiating stubs of the antenna module are located on the same side of the electronic device.

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