Antenna assembly and electronic equipment

Abstract

The utility model relates to an antenna assembly and electronic equipment. The antenna assembly includes: an antenna radiator; the first end of each matching circuit is electrically connected with one signal source, the second end of each matching circuit is electrically connected with the antenna radiator, the matching circuits are used for matching first signals and preventing second signals from passing through, the first signals are signals input by the first ends of the matching circuits, and the second signals are signals input by the second ends of the matching circuits. The second signal is a signal input by the second end of the matching circuit. Since the matching circuit can match the first signal and prevent the second signal from passing, not only can the signal input to the antenna radiator by the signal source be matched, but also the mutual interference of different signal sources in the signal transmission process can be reduced. The function of band elimination filtering is achieved through the multiplexing matching circuit, the number of electric devices in the antenna assembly is reduced, and therefore the complexity of the antenna assembly structure is reduced.

Description

Technical Field

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

[0002] Due to the limited size of electronic devices, multiple signal sources are electrically connected to the same antenna radiator through corresponding matching circuits and band-stop filter circuits to reduce the number of antenna radiators. However, because the signal sources transmit signals in multiple frequency bands, the antenna assembly contains a large number of electrical components to isolate interference between different signal sources, resulting in a complex antenna assembly structure. Utility Model Content

[0003] To overcome the problems existing in the related technologies, this disclosure provides an antenna assembly and an electronic device.

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

[0005] Antenna radiator;

[0006] Multiple matching circuits are provided, each with a first terminal electrically connected to a signal source and a second terminal electrically connected to the antenna radiator. The matching circuits are used to match a first signal and block a second signal from passing through. The first signal is the signal input to the first terminal of the matching circuit, and the second signal is the signal input to the second terminal of the matching circuit.

[0007] In some embodiments of this disclosure, the signal source includes a first signal source and a second signal source; the plurality of matching circuits include:

[0008] A first matching circuit, wherein a first terminal of the first matching circuit is electrically connected to the first signal source, and a second terminal of the first matching circuit is electrically connected to the antenna radiator;

[0009] The second matching circuit has a first terminal electrically connected to the second signal source and a second terminal electrically connected to the antenna radiator.

[0010] In some embodiments of this disclosure, the frequency band of the signal generated by the first signal source is lower than the frequency band of the signal generated by the second signal source; the first matching circuit includes:

[0011] A first capacitor, wherein a first terminal of the first capacitor is electrically connected to the first signal source, and a second terminal of the first capacitor is electrically connected to a ground terminal;

[0012] A first inductor, wherein a first terminal of the first inductor is electrically connected to both the first signal source and the first terminal of the first capacitor, and a second terminal of the first inductor is electrically connected to the antenna radiator; and / or

[0013] The second matching circuit includes:

[0014] The second capacitor has a first terminal electrically connected to the second signal source and a second terminal electrically connected to the antenna radiator.

[0015] The second inductor has its first end electrically connected to the second end of the second capacitor and the antenna radiator, and its second end is used to be electrically connected to the ground terminal.

[0016] In some embodiments of this disclosure, the capacitance value of the first capacitor is greater than the capacitance value of the second capacitor, and the inductance value of the first inductor is greater than the inductance value of the second inductor.

[0017] In some embodiments of this disclosure, the second terminal of each of the matching circuits is electrically connected to the same feed point of the antenna radiator.

[0018] In some embodiments of this disclosure, each of the signal sources generates signals in multiple frequency bands; the antenna assembly further includes:

[0019] Multiple band-stop filter circuits are provided, with at least one band-stop filter circuit electrically connected between the second terminal of each matching circuit and the antenna radiator. The band-stop filter circuit is used to block the passage of a third signal, which is a portion of the signal input to the end of the band-stop filter circuit electrically connected to the antenna radiator.

[0020] In some embodiments of this disclosure, the signal source includes a first signal source and a second signal source, both of which generate signals in two frequency bands; the plurality of matching circuits includes a first matching circuit and a second matching circuit, a first terminal of the first matching circuit being electrically connected to the first signal source, and a first terminal of the second matching circuit being electrically connected to the second signal source; the plurality of band-stop filter circuits include:

[0021] A first band-stop filter circuit, wherein a first terminal of the first band-stop filter circuit is electrically connected to a second terminal of the first matching circuit, and a second terminal of the first band-stop filter circuit is electrically connected to the antenna radiator.

[0022] The second band-stop filter circuit has its first terminal electrically connected to the second terminal of the second matching circuit, and its second terminal electrically connected to the antenna radiator.

[0023] In some embodiments of this disclosure, the first band-stop filter circuit includes:

[0024] The third capacitor has its first terminal electrically connected to the second terminal of the first matching circuit, and its second terminal electrically connected to the antenna radiator.

[0025] A third inductor, wherein the third inductor is connected in parallel with the third capacitor; and / or,

[0026] The second band-stop filter circuit includes:

[0027] The fourth capacitor has its first terminal electrically connected to the second terminal of the second matching circuit, and its second terminal electrically connected to the antenna radiator.

[0028] The fourth inductor is connected in parallel with the fourth capacitor.

[0029] In some embodiments of this disclosure, the first signal source generates signals in a first frequency band and a second frequency band, wherein the first frequency band is lower than the second frequency band; the second signal source generates signals in a third frequency band and a fourth frequency band, wherein the third frequency band is lower than the fourth frequency band; the first band-stop filter circuit is used to block the signal in the third frequency band from passing through, and the second band-stop filter circuit is used to block the signal in the second frequency band from passing through.

[0030] In some embodiments of this disclosure, the first frequency band is the L1 band of the Global Positioning System, the second frequency band is the 2.4G band of WIFI signals, the third frequency band is the N78 band, and the fourth frequency band is the 5G band of WIFI signals.

[0031] According to a second aspect of this disclosure, an electronic device is provided, the electronic device including the charging and discharging circuit described above.

[0032] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0033] The antenna assembly includes an antenna radiator and multiple matching circuits, each electrically connected between the antenna radiator and different signal sources. Because the matching circuits can match the first signal and block the passage of the second signal, they not only match the signals input to the antenna radiator but also reduce mutual interference between different signal sources during signal transmission. By multiplexing the matching circuits to achieve band-stop filtering, the number of electrical components in the antenna assembly is reduced, thereby lowering the complexity of the antenna assembly structure.

[0034] 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

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0036] Figure 1 This is a schematic diagram of the structure of an antenna assembly;

[0037] Figure 2 This is a schematic diagram of the structure of an antenna assembly provided in an exemplary embodiment of the present disclosure;

[0038] Figure 3 This is a schematic diagram of the structure of an antenna assembly provided in another exemplary embodiment of this disclosure;

[0039] Figure 4 This is a schematic diagram of the structure of an antenna assembly provided in another exemplary embodiment of this disclosure;

[0040] Figure 5 This is a schematic diagram of the structure of an antenna assembly provided in another exemplary embodiment of this disclosure;

[0041] Figure 6 This is a schematic diagram of the structure of an antenna assembly provided in another exemplary embodiment of this disclosure;

[0042] Figure 7 This is a schematic diagram of the structure of an antenna assembly provided in another exemplary embodiment of this disclosure;

[0043] Figure 8 This is a schematic diagram of the structure of an antenna assembly provided in another exemplary embodiment of this disclosure;

[0044] Figure 9 This is a schematic diagram of the isolation curve of an antenna assembly provided in another exemplary embodiment of this disclosure;

[0045] Figure 10 This is a schematic diagram of the efficiency curve of an antenna assembly provided in another exemplary embodiment of this disclosure;

[0046] Figure 11 This is a system block diagram of an electronic device provided in an exemplary embodiment of the present disclosure.

[0047] In the picture:

[0048] 10 - Antenna radiator; 20 - Matching circuit; 21 - First matching circuit; 22 - Second matching circuit; 30 - Band-stop filter circuit; 31 - First band-stop filter circuit; 32 - Second band-stop filter circuit; 400 - Electronic device; 402 - Processing component; 404 - Memory; 406 - Power supply component; 408 - Multimedia component; 410 - Audio component; 412 - Input / output interface; 414 - Sensor component; 416 - Communication component; 420 - Processor; L1 - First inductor; L2 - Second inductor; L3 - Third inductor; L4 - Fourth inductor; L5 - Fifth inductor; L6 - Sixth inductor; C1 - First capacitor; C2 - Second capacitor; C3 - Third capacitor; C4 - Fourth capacitor; C5 - Fifth capacitor; C6 - Sixth capacitor; S - Signal source; S1 - First signal source; S2 - Second signal source; GND - Ground terminal. Detailed Implementation

[0049] 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 numbers 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 invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0050] The signal source transmits signals of different frequency bands to the antenna radiator through a matching circuit to meet the multi-band communication needs of electronic devices. For example, 2G signals can meet the needs of voice communication and SMS services, 3G signals can meet the needs of video calls and mobile calls, 4G signals can meet the needs of high-definition video transmission, and 5G signals can meet the needs of ultra-high-definition video transmission and immersive games.

[0051] In related technologies, an antenna assembly is provided, such as Figure 1As shown, the antenna assembly includes an antenna radiator 10, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a first inductor L1, a second inductor L2, a third inductor L3, a fourth inductor L4, a fifth inductor L5, and a sixth inductor L6. A first signal source S1 is electrically connected to the first terminal of the first inductor L1 and the first terminal of the first capacitor C1. The second terminal of the first capacitor C1 is electrically connected to the first terminals of the second capacitor C2 and the second inductor L2. The second terminal of the second capacitor C2 is electrically connected to the second terminal of the second inductor L2, the first terminal of the third capacitor C3, and the first terminal of the third inductor L3. The second terminal of the third capacitor C3 is electrically connected to the antenna radiator 10 and the second terminal of the third inductor L3. A second signal source S2 is electrically connected to the first terminal of the fourth inductor L4 and the first terminal of the fourth capacitor C4. The second terminal of the fourth capacitor C4 is electrically connected to the first terminal of the fifth capacitor C5 and the first terminal of the fifth inductor L5. The second terminal of the fifth capacitor C5 is electrically connected to the second terminal of the fifth inductor L5, the first terminal of the sixth capacitor C6, and the first terminal of the sixth inductor L6. The second terminal of the sixth capacitor C6 is electrically connected to the antenna radiator 10 and the second terminal of the sixth inductor L6. The second terminals of the first inductor L1 and the fourth capacitor C4 are both used to be electrically connected to the ground terminal GND. The capacitance of the first capacitor C1 is less than the capacitance of the fourth capacitor C4, and the inductance of the first inductor L1 is less than the inductance of the fourth inductor L4. The first signal source S1 generates a first signal and a second signal, and the second signal source S2 generates a third signal and a fourth signal. The frequency band of the first signal is less than the frequency band of the second signal, the frequency band of the second signal is less than the frequency band of the third signal, and the frequency band of the third signal is less than the frequency band of the fourth signal. The first inductor L1 and the first capacitor C1 constitute the matching circuit of the first signal source S1. The fourth inductor L4 and the fourth capacitor C4 constitute the matching circuit of the second signal source S2. The second capacitor C2, the second inductor L2, and the third capacitor C3 and the third inductor L3 constitute two band-stop filter circuits to prevent the third and fourth signals from interfering with the first signal source. The fifth capacitor C5 and the fifth inductor L5, and the sixth capacitor C6 and the sixth inductor L6 constitute two band-stop filter circuits to prevent the first and second signals from interfering with the second signal source. Since each frequency band corresponds to a band-stop filter circuit, the number of band-stop filter circuits is relatively large, resulting in a complex antenna assembly structure.

[0052] Based on this, the present disclosure provides an antenna assembly that achieves band-stop filtering by multiplexing a matching circuit, thereby reducing the number of band-stop filtering circuits electrically connected to the first signal source and the second signal source, and thus reducing the complexity of the antenna assembly structure.

[0053] An exemplary embodiment of this disclosure provides an antenna assembly, such as Figure 2As shown, the antenna assembly includes an antenna radiator 10 and multiple matching circuits 20. The first terminal of each matching circuit 20 is electrically connected to a signal source S, and the second terminal of each matching circuit 20 is electrically connected to the antenna radiator 10. The matching circuits 20 are used to match a first signal and block a second signal from passing through. The first signal is the signal input to the first terminal of the matching circuit 20, and the second signal is the signal input to the second terminal of the matching circuit 20.

[0054] In this embodiment, the antenna assembly includes an antenna radiator and multiple matching circuits, each electrically connected between the antenna radiator and different signal sources. Since the matching circuits can match the first signal and block the passage of the second signal, they can not only match the signals input from the signal sources to the antenna radiator but also reduce mutual interference between different signal sources during signal transmission. By multiplexing the matching circuits to achieve band-stop filtering, the number of electrical components in the antenna assembly is reduced, thereby lowering the complexity of the antenna assembly structure.

[0055] For example, the antenna radiator 10 can be a conductive frame of an electronic device.

[0056] For example, taking an antenna assembly comprising three matching circuits 20, the function of each matching circuit 20 is described below. The three matching circuits 20 are a first matching circuit, a second matching circuit, and a third matching circuit, and the three signal sources S are a first signal source, a second signal source, and a third signal source, respectively. The first terminal of the first matching circuit is electrically connected to the first signal source, the first terminal of the second matching circuit is electrically connected to the second signal source, and the first terminal of the third matching circuit is electrically connected to the third signal source. The second terminals of the first, second, and third matching circuits are all electrically connected to the antenna radiator 10. For the first signal source, the first matching circuit is used to match the first signal output by the first signal source and to block the second signals output by the second and third signal sources. For the second signal source, the second matching circuit is used to match the first signal output by the second signal source and to block the second signals output by the first and third signal sources. For the third signal source, the third matching circuit is used to match the first signal output by the third signal source and to block the second signals output by the second and third signal sources.

[0057] In one embodiment, such as Figure 3 As shown, the signal source S includes a first signal source S1 and a second signal source S2. The plurality of matching circuits 20 include a first matching circuit 21 and a second matching circuit 22. A first terminal of the first matching circuit 21 is electrically connected to the first signal source S1, and a second terminal of the first matching circuit 21 is electrically connected to the antenna radiator 10. A first terminal of the second matching circuit 22 is electrically connected to the second signal source S2, and a second terminal of the second matching circuit 22 is electrically connected to the antenna radiator 10.

[0058] In this embodiment, by reusing the band-stop filtering functions of the first matching circuit and the second matching circuit, the first matching circuit can reduce the interference of the signal generated by the second signal source on the first signal source, and the second matching circuit can reduce the interference of the signal generated by the first signal source on the second signal source. Since both the first matching circuit and the second matching circuit can block signals in certain frequency bands from passing through, the number of band-stop filtering circuits is reduced by at least two, thereby reducing the complexity of the antenna assembly structure.

[0059] In one embodiment, such as Figure 4 As shown, the frequency band of the signal generated by the first signal source S1 is lower than the frequency band of the signal generated by the second signal source S2. The first matching circuit 21 includes a first capacitor C1 and a first inductor L1. The first terminal of the first capacitor C1 is electrically connected to the first signal source S1, and the second terminal of the first capacitor C1 is used to be electrically connected to the ground terminal GND. The first terminal of the first inductor L1 is electrically connected to both the first signal source S1 and the first terminal of the first capacitor C1, and the second terminal of the first inductor L1 is electrically connected to the antenna radiator 10.

[0060] In this embodiment, since the structure of capacitors and inductors is simple and they can simultaneously achieve impedance matching and band-stop filtering, using the first capacitor and the first inductor to form the first matching circuit can reduce the complexity of the first matching circuit structure, thereby reducing the complexity of the antenna component structure.

[0061] In one embodiment, the second matching circuit 22 includes a second capacitor C2 and a second inductor L2. The first terminal of the second capacitor C2 is electrically connected to the second signal source S2, and the second terminal of the second capacitor C2 is electrically connected to the antenna radiator 10. The first terminal of the second inductor L2 is electrically connected to both the second terminal of the second capacitor C2 and the antenna radiator 10, and the second terminal of the second inductor L2 is used to be electrically connected to the ground terminal GND.

[0062] In this embodiment, since the capacitor and inductor have simple structures and simultaneously achieve impedance matching and band-stop filtering, using the second capacitor and the second inductor to form the second matching circuit can reduce the complexity of the second matching circuit structure, thereby reducing the complexity of the antenna component structure.

[0063] In one embodiment, the capacitance of the first capacitor C1 is greater than the capacitance of the second capacitor C2, and the inductance of the first inductor L1 is greater than the inductance of the second inductor L2.

[0064] In this embodiment, since the frequency band of the signal generated by the first signal source is lower than that of the signal generated by the second signal source, the first matching circuit composed of the first capacitor and the first inductor needs to block the relatively high-frequency signal generated by the second signal source from passing through, and the second matching circuit composed of the second capacitor and the second inductor needs to block the relatively low-frequency signal generated by the first signal source from passing through. For capacitors and inductors, capacitors with larger capacitance values ​​and inductors with larger inductance values ​​can block the passage of relatively high-frequency signals, while capacitors with smaller capacitance values ​​and inductors with smaller inductance values ​​can block the passage of relatively low-frequency signals. Therefore, setting the capacitance value of the first capacitor to be greater than that of the second capacitor, and setting the inductance value of the first inductor to be greater than that of the second inductor, can respectively achieve low-pass filtering and high-pass filtering functions. By reusing the first matching circuit composed of a large capacitor and a large inductor and the second matching circuit composed of a small capacitor and a small inductor, the higher-frequency signal and the lower-frequency signal can be effectively blocked respectively, thereby improving the efficiency of the antenna assembly.

[0065] In one embodiment, the capacitance of the first capacitor C1 is between 1pF and 5pF, the capacitance of the second capacitor C2 is between 0.1pF and 0.9pF, the inductance of the first inductor L1 is between 5nH and 10nH, and the inductance of the second inductor L2 is between 0.5nH and 1.5nH.

[0066] In this embodiment, when the capacitance of the first capacitor is between 1pF and 5pF and the inductance of the first inductor is between 5nH and 10nH, the first matching circuit formed by the first capacitor and the first inductor has a better matching effect on the signal generated by the first signal source and a better blocking effect on the signal generated by the second signal source, thereby improving the effect of the first matching circuit. When the capacitance of the second capacitor is between 0.1pF and 0.9pF and the inductance of the second inductor is between 0.5nH and 1.5nH, the second matching circuit formed by the second capacitor and the second inductor has a better matching effect on the signal generated by the second signal source and a better blocking effect on the signal generated by the first signal source, thereby improving the effect of the second matching circuit.

[0067] For example, the capacitance value of the first capacitor C1 can be 1pF, 2pF, 3pF, 4pF, and 5pF, etc. The capacitance value of the second capacitor C2 can be 0.1pF, 0.3pF, 0.5pF, 0.7pF, and 0.9pF, etc. The inductance value of the first inductor L1 can be 5nH, 6nH, 7nH, 8nH, and 9nH, etc. The inductance value of the second inductor L2 can be 0.5nH, 0.8nH, 1nH, 1.2nH, and 1.5nH, etc.

[0068] In one embodiment, the second terminal of each matching circuit 20 is electrically connected to the same feed point of the antenna radiator 10.

[0069] In this embodiment, since the second terminal of each matching circuit is electrically connected to the same feed point of the antenna radiator, the interference between different signal sources is reduced without occupying a large part of the antenna radiator, thereby increasing the complexity of the antenna assembly structure.

[0070] It is understandable that the second terminal of each matching circuit 20 can also be electrically connected to different feed points of the antenna radiator 10.

[0071] In one embodiment, such as Figure 5 As shown, each signal source S generates signals in multiple frequency bands. The antenna assembly also includes multiple band-stop filter circuits 30. At least one band-stop filter circuit 30 is electrically connected between the second terminal of each matching circuit 20 and the antenna radiator 10. The band-stop filter circuit 30 is used to block the passage of a third signal, which is a portion of the signal input to the end of the band-stop filter circuit electrically connected to the antenna radiator 10.

[0072] In this embodiment, since each signal source can generate signals in multiple frequency bands, and the matching circuit can only block signals in some frequency bands, interference may still occur between the signal sources. By setting multiple band-stop filter circuits, signals in frequency bands that the matching circuit cannot block can be blocked, thereby improving the efficiency of the antenna assembly.

[0073] In one embodiment, the third signal is the signal whose frequency band is closest to that of the signal generated by the signal source S which is electrically connected to the band-stop filter circuit 30.

[0074] In this embodiment, since the signal source can generate signals in multiple frequency bands, a third signal exists among these signals, with a frequency band close to that of the first signal. Because the frequency band of the third signal is close to that of the first signal, the matching circuit has difficulty blocking the passage of the third signal, causing interference to the signal source. By setting a band-stop filter circuit, the passage of the third signal can be blocked, thereby improving the signal efficiency of the antenna assembly.

[0075] In one embodiment, the number of band-stop filter circuits 30 electrically connected between the second terminal of each matching circuit 20 and the antenna radiator 10 is less than the number of signals generated by the signal source S that are not electrically connected to the band-stop filter circuit 30.

[0076] In this embodiment, for antenna components without multiplexed matching circuits, the band-stop filter circuit needs to block signals from all frequency bands generated by signal sources not electrically connected to the band-stop filter circuit. That is, the number of band-stop filter circuits electrically connected between the second terminal of each matching circuit and the antenna radiator is equal to the number of signals generated by signal sources not electrically connected to the band-stop filter circuit. By multiplexing the band-stop filtering function of the matching circuit, the matching circuit can block some signals, and the band-stop filter circuit can block other signals, reducing the number of band-stop filter circuits and thus reducing the complexity of the antenna component structure.

[0077] In one embodiment, such as Figure 6 As shown, the signal source S includes a first signal source S1 and a second signal source S2, both of which generate signals in two frequency bands. Multiple matching circuits 20 include a first matching circuit 21 and a second matching circuit 22. The first terminal of the first matching circuit 21 is electrically connected to the first signal source S1, and the first terminal of the second matching circuit 22 is electrically connected to the second signal source S2. Multiple band-stop filter circuits 30 include a first band-stop filter circuit 31 and a second band-stop filter circuit 32. The first terminal of the first band-stop filter circuit 31 is electrically connected to the second terminal of the first matching circuit 21, and the second terminal of the first band-stop filter circuit 31 is electrically connected to the antenna radiator 10. The first terminal of the second band-stop filter circuit 32 is electrically connected to the second terminal of the second matching circuit 22, and the second terminal of the second band-stop filter circuit 32 is electrically connected to the antenna radiator 10.

[0078] In this embodiment, since both the first and second signal sources generate signals in two frequency bands, two band-stop filter circuits are required between the first signal source and the antenna radiator, and between the second signal source and the antenna radiator, respectively, to reduce interference between the first and second signal sources. The first matching circuit reduces the interference of a portion of the second signal source's signal to the first signal source, and the first band-stop filter circuit reduces the interference of another portion of the second signal source's signal to the first signal source, thus reducing interference between the second and first signal sources. Similarly, the second matching circuit reduces the interference of a portion of the first signal source's signal to the second signal source, and the second band-stop filter circuit reduces the interference of another portion of the first signal source's signal to the second signal source, thus reducing interference between the first and second signal sources. Because only two band-stop filter circuits are used in the antenna assembly, the number of band-stop filter circuits is reduced by two, thereby reducing the complexity of the antenna assembly structure.

[0079] It is understandable that the signal source S electrically connected to the first band-stop filter circuit 31 is the first signal source S1, and the signal source S not electrically connected is the second signal source S2. The signal source S electrically connected to the second band-stop filter circuit 32 is the second signal source S2, and the signal source S not electrically connected is the first signal source S1.

[0080] In one embodiment, such as Figure 7 As shown, the first band-stop filter circuit 31 includes a third capacitor C3 and a third inductor L3. The first terminal of the third capacitor C3 is electrically connected to the second terminal of the first matching circuit 21, and the second terminal of the third capacitor C3 is electrically connected to the antenna radiator 10. The third inductor L3 is connected in parallel with the third capacitor C3.

[0081] In this embodiment, since the structure of capacitors and inductors is simple, using a third capacitor and a third inductor to form the first band-stop filter circuit can reduce the complexity of the first band-stop filter circuit structure, thereby reducing the complexity of the antenna component structure.

[0082] In one embodiment, the second band-stop filter circuit 32 includes a fourth capacitor C4 and a fourth inductor L4. The first terminal of the fourth capacitor C4 is electrically connected to the second terminal of the second matching circuit 22, and the second terminal of the fourth capacitor C4 is electrically connected to the antenna radiator 10. The fourth inductor L4 is connected in parallel with the fourth capacitor C4.

[0083] In this embodiment, since the structure of capacitors and inductors is simple, using a fourth capacitor and a fourth inductor to form the second band-stop filter circuit can reduce the complexity of the second band-stop filter circuit structure, thereby reducing the complexity of the antenna component structure.

[0084] In one embodiment, a first signal source S1 generates signals in a first frequency band and a second frequency band, where the first frequency band is lower than the second frequency band. A second signal source S2 generates signals in a third frequency band and a fourth frequency band, where the third frequency band is lower than the fourth frequency band. A first band-stop filter circuit 31 is used to block the signal in the third frequency band from passing through, and a second band-stop filter circuit 32 is used to block the signal in the second frequency band from passing through.

[0085] In this embodiment, because the first matching circuit matches the signals of the first and second frequency bands and blocks the signal of the fourth frequency band from passing through, and the first band-stop filter circuit blocks the signal of the third frequency band from passing through, the first matching circuit and the first band-stop filter circuit can reduce the interference of the signal generated by the second signal source to the first signal source. Because the second matching circuit matches the signals of the third and fourth frequency bands and blocks the signal of the first frequency band from passing through, and the second band-stop filter circuit blocks the signal of the second frequency band from passing through, the second matching circuit and the second band-stop filter circuit can reduce the interference of the signal generated by the first signal source to the second signal source. Since the matching circuit and the band-stop filter circuit can prevent the interference of signals of various frequency bands generated by unconnected signal sources to electrically connected signal sources, the number of band-stop filter circuits is reduced, thereby reducing the complexity of the antenna assembly structure.

[0086] In one embodiment, the first frequency band is the L1 band of the Global Positioning System, the second frequency band is the 2.4G band of the WIFI signal, the third frequency band is the N78 band, and the fourth frequency band is the 5G band of the WIFI signal.

[0087] In this embodiment, by setting the first, second, third, and fourth frequency bands to the L1 band of the Global Positioning System (GPS), the 2.4 GHz band of Wi-Fi, the N78 band of Wi-Fi, and the 5 GHz band of Wi-Fi, respectively, the number of band-stop filter circuits is reduced while still meeting the diverse communication needs of electronic devices, thereby lowering the complexity of the antenna assembly structure. Furthermore, the matching circuit and band-stop filter circuit prevent mutual interference between the signals of the GPS L1 band and the 2.4 GHz band of Wi-Fi and the signals of the N78 band and the 5 GHz band of Wi-Fi, thus improving the reliability of the antenna assembly.

[0088] An exemplary embodiment of this disclosure provides an antenna assembly, such as Figure 8 As shown, the antenna assembly includes an antenna radiator 10, a first inductor L1, a second inductor L2, a third inductor L3, a fourth inductor L4, a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4. The first terminal of the first capacitor C1 is electrically connected to the first signal source S1 and the first terminal of the first inductor L1. The second terminal of the first capacitor C1 is electrically connected to the ground terminal GND. The second terminal of the first inductor L1 is electrically connected to the first terminals of the third capacitor C3 and the third inductor L3. The second terminal of the third inductor L3 is electrically connected to the second terminal of the third capacitor C3, the antenna radiator 10, the second terminal of the fourth capacitor C4, and the second terminal of the fourth inductor L4. The first terminal of the fourth capacitor C4 is electrically connected to the first terminal of the fourth inductor L4, the first terminal of the second inductor L2, and the second terminal of the second capacitor C2. The second terminal of the second capacitor C2 is electrically connected to the second signal source S2. The second terminal of the second inductor L2 is electrically connected to the ground terminal GND. The first signal source S1 generates signals in the first and second frequency bands, and the second signal source S2 generates signals in the third and fourth frequency bands. The first frequency band is lower than the second frequency band, the second frequency band is lower than the third frequency band, and the third frequency band is lower than the fourth frequency band. The capacitance of the first capacitor C1 is greater than the capacitance of the second capacitor C2, and the inductance of the first inductor L1 is greater than the inductance of the second inductor L2.

[0089] For example, the first capacitor C1 and the first inductor L1 are used to match the signals of the first and second frequency bands and to block the signal of the fourth frequency band from passing through; the third capacitor C3 and the third inductor L3 are used to block the signal of the third frequency band from passing through. The second capacitor C2 and the second inductor L2 are used to match the signals of the third and fourth frequency bands and to block the signal of the first frequency band from passing through; the fourth capacitor C4 and the fourth inductor L4 are used to block the signal of the second frequency band from passing through.

[0090] For example, such as Figure 9As shown, l1 represents the relationship between the isolation of the antenna components in the related technology and the frequency, and l2 represents the relationship between the isolation of the antenna components in this disclosure and the frequency. The vertical axis represents the S-parameters (which reflect the isolation), in dB, and the horizontal axis represents the frequency, in GHz. The isolation of the 2.4 GHz band of the WIFI signal in the related technology is -5 dB, while the isolation of the 2.4 GHz band of the WIFI signal in this disclosure is -18 dB, representing an improvement of approximately 13 dB in isolation.

[0091] For example, such as Figure 10 As shown, l3 represents the relationship between the efficiency and frequency of the antenna components in the related technology, and l4 represents the relationship between the efficiency and frequency of the antenna components of this disclosure. The vertical axis represents efficiency in dB, and the horizontal axis represents frequency in GHz. The efficiency of the 2.4 GHz band of the WIFI signal in the related technology is -4 dB, while the efficiency of the 2.4 GHz band of the WIFI signal in this disclosure is -2.5 dB, representing an efficiency improvement of approximately 1.5 dB.

[0092] An exemplary embodiment of this disclosure provides an electronic device that includes an antenna assembly as described above.

[0093] refer to Figure 11 As shown, the electronic device 400 may include one or more of the following components: a processing component 402, a memory 404, a power supply component 406, a multimedia component 408, an audio component 410, an input / output (I / O) interface 412, a sensor component 414, and a communication component 416.

[0094] Processing component 402 typically controls the overall operation of electronic device 400, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0095] Memory 404 is configured to store various types of data to support the operation of electronic device 400. Examples of this data include instructions for any application or method operating on electronic device 400, contact data, phonebook data, messages, pictures, videos, etc. Memory 404 can be implemented by any type of volatile or non-volatile storage terminal 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.

[0096] Power supply component 406 provides power to various components of electronic device 400. Power supply component 406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 400.

[0097] Multimedia component 408 includes a screen that provides an output interface between electronic device 400 and 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 408 includes a front-facing camera module and / or a rear-facing camera module. When electronic device 400 is in an operating mode, such as shooting mode or video mode, the front-facing camera module and / or rear-facing camera module may receive external multimedia data. Each front-facing camera module and rear-facing camera module may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0098] Audio component 410 is configured to output and / or input audio signals. For example, audio component 410 includes a microphone (MIC) configured to receive external audio signals when electronic device 400 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 404 or transmitted via communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.

[0099] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0100] Sensor assembly 414 includes one or more sensors for providing state assessments of various aspects of electronic device 400. For example, sensor assembly 414 may detect the on / off state of electronic device 400, the relative positioning of components such as the display and keypad of electronic device 400, changes in position of electronic device 400 or a component of electronic device 400, the presence or absence of user contact with electronic device 400, orientation or acceleration / deceleration of electronic device 400, and temperature changes of electronic device 400. Sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 414 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0101] Communication component 416 is configured to facilitate wired or wireless communication between electronic device 400 and other terminals. Electronic device 400 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 416 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.

[0102] In an exemplary embodiment, the electronic device 400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing terminals (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0103] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0104] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0105] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models 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 following claims.

[0106] 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 assembly, characterized in that, The antenna assembly includes: Antenna radiator; Multiple matching circuits are provided, each with a first terminal electrically connected to a signal source and a second terminal electrically connected to the antenna radiator. The matching circuits are used to match a first signal and block a second signal from passing through. The first signal is the signal input to the first terminal of the matching circuit, and the second signal is the signal input to the second terminal of the matching circuit.

2. The antenna assembly according to claim 1, characterized in that, The signal source includes a first signal source and a second signal source; the plurality of matching circuits include: A first matching circuit, wherein a first terminal of the first matching circuit is electrically connected to the first signal source, and a second terminal of the first matching circuit is electrically connected to the antenna radiator; The second matching circuit has a first terminal electrically connected to the second signal source and a second terminal electrically connected to the antenna radiator.

3. The antenna assembly according to claim 2, characterized in that, The frequency band of the signal generated by the first signal source is lower than the frequency band of the signal generated by the second signal source; The first matching circuit includes: A first capacitor, wherein a first terminal of the first capacitor is electrically connected to the first signal source, and a second terminal of the first capacitor is electrically connected to a ground terminal; A first inductor, wherein a first terminal of the first inductor is electrically connected to both the first signal source and the first terminal of the first capacitor, and a second terminal of the first inductor is electrically connected to the antenna radiator; and / or The second matching circuit includes: The second capacitor has a first terminal electrically connected to the second signal source and a second terminal electrically connected to the antenna radiator. The second inductor has its first end electrically connected to the second end of the second capacitor and the antenna radiator, and its second end is used to be electrically connected to the ground terminal.

4. The antenna assembly according to claim 3, characterized in that, The capacitance of the first capacitor is greater than the capacitance of the second capacitor, and the inductance of the first inductor is greater than the inductance of the second inductor.

5. The antenna assembly according to claim 1, characterized in that, The second terminal of each of the matching circuits is electrically connected to the same feed point of the antenna radiator.

6. The antenna assembly according to any one of claims 1 to 5, characterized in that, Each of the signal sources generates signals in multiple frequency bands; the antenna assembly further includes: Multiple band-stop filter circuits are provided, with at least one band-stop filter circuit electrically connected between the second terminal of each matching circuit and the antenna radiator. The band-stop filter circuit is used to block the passage of a third signal, which is a portion of the signal input to the end of the band-stop filter circuit electrically connected to the antenna radiator.

7. The antenna assembly according to claim 6, characterized in that, The signal source includes a first signal source and a second signal source, both of which generate signals in two frequency bands; the plurality of matching circuits includes a first matching circuit and a second matching circuit, with a first terminal of the first matching circuit electrically connected to the first signal source and a first terminal of the second matching circuit electrically connected to the second signal source; the plurality of band-stop filter circuits include: A first band-stop filter circuit, wherein a first terminal of the first band-stop filter circuit is electrically connected to a second terminal of the first matching circuit, and a second terminal of the first band-stop filter circuit is electrically connected to the antenna radiator. The second band-stop filter circuit has its first terminal electrically connected to the second terminal of the second matching circuit, and its second terminal electrically connected to the antenna radiator.

8. The antenna assembly according to claim 7, characterized in that, The first band-stop filter circuit includes: The third capacitor has its first terminal electrically connected to the second terminal of the first matching circuit, and its second terminal electrically connected to the antenna radiator. A third inductor, wherein the third inductor is connected in parallel with the third capacitor; and / or, The second band-stop filter circuit includes: The fourth capacitor has its first terminal electrically connected to the second terminal of the second matching circuit, and its second terminal electrically connected to the antenna radiator. The fourth inductor is connected in parallel with the fourth capacitor.

9. The antenna assembly according to claim 7, characterized in that, The first signal source generates signals in a first frequency band and a second frequency band, wherein the first frequency band is lower than the second frequency band; the second signal source generates signals in a third frequency band and a fourth frequency band, wherein the third frequency band is lower than the fourth frequency band; the first band-stop filter circuit is used to block the signal in the third frequency band from passing through, and the second band-stop filter circuit is used to block the signal in the second frequency band from passing through.

10. The antenna assembly according to claim 9, characterized in that, The first frequency band is the L1 band of the Global Positioning System, the second frequency band is the 2.4G band of WIFI signals, the third frequency band is the N78 band, and the fourth frequency band is the 5G band of WIFI signals.

11. An electronic device, characterized in that, The electronic device includes an antenna assembly as described in any one of claims 1 to 10.

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