Antenna device and electronic equipment

Abstract

The invention relates to an antenna device and electronic equipment, and relates to the technical field of antennas. The antenna device comprises a first radiator, a second radiator, a third radiator, a fourth radiator, a first feed source, a second feed source, a third feed source, a fourth feed source, a fifth feed source and a sixth feed source. The first feed source excites the first radiator through the first feed point to support a first frequency band; the second feed source excites the first sub-radiator to support a second frequency band and a third frequency band through the second feed point, the third feed source excites the first sub-radiator to support a fourth frequency band through the third feed point, and the fourth feed source excites the second sub-radiator to support the third frequency band and a fifth frequency band through the fourth feed point; the fifth feed source excites the third radiator to support the first frequency band through a fifth feed point; and the sixth feed source excites the fourth radiator through a sixth feed point to support the second frequency band and the sixth frequency band. According to the antenna, the radiation body is shared, various different frequency bands are supported, the integration level of the antenna is improved, and miniaturization of the antenna is facilitated.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to an antenna device and an electronic device. Background Art

[0002] With the development of communication technology, electronic devices with wireless communication capabilities have become widely used. Electronic devices often include antennas to enable communication. However, in related technologies, antennas for electronic devices that support multiple frequency bands are large in size, making them difficult to miniaturize. Summary of the Invention

[0003] The present application provides an antenna device and an electronic device, which can achieve miniaturization of the antenna.

[0004] In a first aspect, an embodiment of the present application provides an antenna device, comprising: a first radiator, a second radiator, a third radiator, a fourth radiator, a first feed source, a second feed source, a third feed source, a fourth feed source, a fifth feed source, and a sixth feed source, wherein a first gap is provided between the first radiator and the second radiator, a second gap is provided between the second radiator and the third radiator, and a third gap is provided between the third radiator and the fourth radiator; wherein,

[0005] The first radiator is provided with a first feeding point and a first grounding point, and the first feed source excites the first radiator via the first feeding point to support a first frequency band; the second radiator is provided with a second grounding point, and the second grounding point divides the second radiator into a first sub-radiator and a second sub-radiator, the first sub-radiator is provided with a second feeding point and a third feeding point, and the second sub-radiator is provided with a fourth feeding point, the second feed source excites the first sub-radiator via the second feeding point to support a second frequency band and a third frequency band, the third feed source excites the first sub-radiator via the third feeding point to support a fourth frequency band, and the fourth feed source excites the second sub-radiator via the fourth feeding point to support the third frequency band and a fifth frequency band; the third radiator is provided with a fifth feeding point and a third grounding point, and the fifth feed source excites the third radiator via the fifth feeding point to support the first frequency band; the fourth radiator is provided with a sixth feeding point and a fourth grounding point, and the sixth feed source excites the fourth radiator via the sixth feeding point to support the second frequency band and the sixth frequency band.

[0006] In a second aspect, an embodiment of the present application provides an electronic device, comprising the antenna device as described above.

[0007] The above-mentioned antenna device and electronic device support the first frequency band by exciting the first radiator through the first feeding point through the first feed source, and support the second and third frequency bands by exciting the first sub-radiator through the second feeding point through the second feed source, and support the fourth frequency band by exciting the first sub-radiator through the third feed source through the third feeding point, and support the third and fifth frequency bands by exciting the second sub-radiator through the fourth feed source through the fourth feeding point, and support the first frequency band through the third feed source through the fifth feeding point, and support the second and sixth frequency bands by exciting the third radiator through the sixth feed source through the sixth feeding point, thereby achieving coverage of multiple different frequency bands. In addition, the second, third, and fourth frequency bands share the first sub-radiator, and the third and fifth frequency bands share the second sub-radiator, which improves the integration of the antenna, facilitates the miniaturization of the antenna, and can reserve more space for other antenna designs of the electronic device. In addition, the first radiator and the third radiator respectively support the first frequency band, the first sub-radiator and the fourth radiator respectively support the second frequency band, and the first sub-radiator and the second sub-radiator respectively support the third frequency band. That is, the same frequency band is supported by multiple radiators, which improves the antenna performance and helps to improve the communication performance of electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] FIG1 is a schematic structural diagram of an antenna device provided in an embodiment of the present application;

[0010] FIG2 is a schematic structural diagram of another antenna device provided in an embodiment of the present application;

[0011] FIG3 is a schematic structural diagram of another antenna device provided in an embodiment of the present application;

[0012] FIG4 is a schematic structural diagram of another antenna device provided in an embodiment of the present application;

[0013] FIG5 is a schematic diagram of S21 parameter curves of the antenna device provided in an embodiment of the present application and a conventional solution;

[0014] FIG6 a is a schematic diagram of an S-parameter curve of an antenna device provided in an embodiment of the present application;

[0015] FIG6b is a grayscale schematic diagram of FIG6a;

[0016] FIG7 is a 3D simulated radiation pattern of a first radiator in an antenna device provided in an embodiment of the present application;

[0017] FIG8 is a 3D simulated radiation pattern of a third radiator in the antenna device provided in an embodiment of the present application;

[0018] FIG9 a is a 3D simulated radiation pattern of the first radiator and the third radiator in the antenna device provided in an embodiment of the present application;

[0019] FIG9b is a grayscale schematic diagram of FIG9a;

[0020] FIG10 is a 3D simulated radiation pattern of the first sub-radiator in the antenna device provided in an embodiment of the present application;

[0021] FIG11 is a 3D simulated radiation pattern of a fourth radiator in the antenna device provided in an embodiment of the present application;

[0022] FIG12a is a 3D simulated radiation pattern of the first sub-radiator and the fourth radiator in the antenna device provided by an embodiment of the present application;

[0023] FIG12b is a grayscale schematic diagram of FIG12a;

[0024] FIG13 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

[0025] FIG14 is a schematic structural diagram of another electronic device provided in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] First radiator 11, second radiator 12, first sub-radiator 121 and second sub-radiator 122, third radiator 13, fourth radiator 14, first feed 21, second feed 22, third feed 23, fourth feed 24, fifth feed 25, sixth feed 26, first filtering circuit 31, second filtering circuit 32, third filtering circuit 33, fourth filtering circuit 34, top edge 401, bottom edge 402, first side edge 403, second side edge 404, 50-mobile phone, 51-memory, 511-operating system, 512-communication module, 513-GPS module, 52-processing circuit, 53-I / O subsystem, 531-button, 54-antenna device, 55-signal line. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0030] It should be understood that the terms "first," "second," and so forth, used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are used solely to distinguish a first element from another element. For example, a first radiator may be referred to as a second radiator, and similarly, a second radiator may be referred to as a first radiator, without departing from the scope of this application. The first radiator and the second radiator are both radiators, but they are not the same radiator.

[0031] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if there is transmission of electrical signals or data between the connected circuits, modules, units, etc.

[0032] It will be understood that “at least one” means one or more, and “a plurality” means two or more. “At least a portion of an element” means part or all of an element. When used herein, the singular forms “one”, “an” and “said / the” may also include plural forms, unless the context clearly indicates otherwise. It will also be understood that the terms “include / comprise” or “have” etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof. At the same time, the term “and / or” used in this specification includes any and all combinations of the relevant listed items.

[0033] The antenna devices involved in the embodiments of the present application can be applied to electronic devices with wireless communication functions, such as handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE) (e.g., mobile phones), mobile stations (MS), etc. For ease of description, the above-mentioned devices are collectively referred to as electronic devices.

[0034] In one embodiment, as shown in FIG1 , an antenna device is provided, comprising a first radiator 11, a second radiator 12, a third radiator 13, a fourth radiator 14, a first feed 21, a second feed 22, a third feed 23, a fourth feed 24, a fifth feed 25, and a sixth feed 26. A first gap d1 is defined between the first radiator 11 and the second radiator 12, a second gap d2 is defined between the second radiator 12 and the third radiator 13, and a third gap d3 is defined between the third radiator 13 and the fourth radiator 14. The sizes of the first gap d1, the second gap d2, and the third gap d3 can be set according to actual conditions and are not limited herein.

[0035] The first radiator 11 is provided with a first feeding point S1 and a first grounding point G1. The first grounding point G1 is arranged close to the first gap d1, and the first grounding point G1 is connected to the common ground GND. The first feeding point S1 is arranged away from the first gap d1, and the first feeding point S1 is connected to the first feed source 21. The first feed source 21 excites the first radiator 11 to support the first frequency band via the first feeding point S1. The first feed source 21 can be a device that generates a first excitation signal. The first excitation signal provided by the first feed source 21 excites the first radiator 11 to support the first frequency band via the first feeding point S1. The first radiator 11 supporting the first frequency band can be understood as the first radiator 11 being used to receive radio frequency signals of the first frequency band, or the first radiator 11 being used to transmit radio frequency signals of the first frequency band, or the first radiator 11 being used to receive and transmit radio frequency signals of the first frequency band.

[0036] The second radiator 12 has a second ground point G2, which divides the second radiator 12 into a first sub-radiator 121 and a second sub-radiator 122. The second ground point G2 is connected to the common ground GND. The first sub-radiator 121 is located near the first gap d1. The first sub-radiator 121 has a second feeding point S2 and a third feeding point S3. The second feeding point S2 is connected to the second feed source 22, which excites the first sub-radiator 121 via the second feeding point S2 to support the second and third frequency bands. The third feeding point S3 is connected to the third feed source 23, which excites the first sub-radiator 121 via the third feeding point S3 to support the fourth frequency band.

[0037] The second feed source 22 can be a device that generates a second excitation signal and a third excitation signal. The second feed source 22 provides a second excitation signal to excite the first sub-radiator 121 via the second feeding point S2 to support the second frequency band, and the second feed source 22 provides a third excitation signal to excite the first sub-radiator 121 via the third feeding point S3 to support the third frequency band. The first sub-radiator 121 supporting the second frequency band can be understood as the first sub-radiator 121 is used to receive radio frequency signals in the second frequency band, or the first sub-radiator 121 is used to transmit radio frequency signals in the second frequency band, or the first sub-radiator 121 is used to receive and transmit radio frequency signals in the second frequency band. The first sub-radiator 121 supporting the third frequency band can be understood as the first sub-radiator 121 is used to receive radio frequency signals in the third frequency band, or the first sub-radiator 121 is used to transmit radio frequency signals in the third frequency band, or the first sub-radiator 121 is used to receive and transmit radio frequency signals in the third frequency band.

[0038] The third feed source 23 can be a device that generates a fourth excitation signal. The third feed source 23 provides the fourth excitation signal via the third feed point S3 to excite the first sub-radiator 121 to support the fourth frequency band. The first sub-radiator 121 supporting the fourth frequency band can be understood as being configured to receive RF signals in the fourth frequency band, transmit RF signals in the fourth frequency band, or both receive and transmit RF signals in the fourth frequency band.

[0039] The second sub-radiator 122 is located near the second gap d2. The second sub-radiator 122 is provided with a fourth feed point S4, which is connected to the fourth feed source 24. The fourth feed source 24 excites the second sub-radiator 122 via the fourth feed point S4 to support the third and fifth frequency bands. The fourth feed source 24 may be a device that generates third and fifth excitation signals. The fourth feed source 24 provides the third excitation signal via the fourth feed point S4 to excite the second sub-radiator 122 to support the third frequency band, and the fourth feed source 24 provides the fifth excitation signal via the fourth feed point S4 to excite the second sub-radiator 122 to support the fifth frequency band. The second sub-radiator 122 supporting the third frequency band can be understood as the second sub-radiator 122 being configured to receive radio frequency signals in the third frequency band, the second sub-radiator 122 being configured to transmit radio frequency signals in the third frequency band, or the second sub-radiator 122 being configured to both receive and transmit radio frequency signals in the third frequency band. The second sub-radiator 122 supports the fifth frequency band, which can be understood as the second sub-radiator 122 is used to receive radio frequency signals in the fifth frequency band, or the second sub-radiator 122 is used to transmit radio frequency signals in the fifth frequency band, or the second sub-radiator 122 is used to receive and transmit radio frequency signals in the fifth frequency band.

[0040] The third radiator 13 is provided with a fifth feeding point S5 and a third grounding point G3. The third grounding point G3 is arranged away from the second gap d2, and the third grounding point G3 is connected to the common ground GND. The fifth feeding point S5 is arranged close to the second gap d2, and the fifth feeding point S5 is connected to the fifth feed source 25. The fifth feed source 25 excites the third radiator 13 to support the first frequency band via the fifth feeding point S5. The fifth feed source 25 can be a device for generating a first excitation signal. The fifth feed source 25 provides a first excitation signal to excite the third radiator 13 to support the first frequency band via the fifth feeding point S5. The third radiator 13 supporting the first frequency band can be understood as the third radiator 13 being used to receive radio frequency signals of the first frequency band, or the third radiator 13 being used to transmit radio frequency signals of the first frequency band, or the third radiator 13 being used to receive and transmit radio frequency signals of the first frequency band.

[0041] The fourth radiator 14 is provided with a sixth feed point S6 and a fourth ground point G4. The fourth ground point G4 is located away from the third gap d3 and is connected to the common ground terminal GND. The sixth feed point S6 is located near the third gap d3 and is connected to the sixth feed source 26. The sixth feed source 26 excites the fourth radiator 14 via the sixth feed point S6 to support the second frequency band and the sixth frequency band. The sixth feed source 26 may be a device that generates a second excitation signal and a sixth excitation signal. The sixth feed source 26 provides the second excitation signal via the sixth feed point S6 to excite the fourth radiator 14 to support the second frequency band, and the sixth feed source 26 provides the sixth excitation signal via the sixth feed point S6 to excite the fourth radiator 14 to support the sixth frequency band. The fourth radiator 14 supporting the second frequency band can be understood as the fourth radiator 14 being configured to receive radio frequency signals in the second frequency band, or the fourth radiator 14 being configured to transmit radio frequency signals in the second frequency band, or the fourth radiator 14 being configured to both receive and transmit radio frequency signals in the second frequency band. The fourth radiator 14 supports the sixth frequency band, which can be understood as the fourth radiator 14 is used to receive radio frequency signals in the sixth frequency band, or the fourth radiator 14 is used to transmit radio frequency signals in the sixth frequency band, or the fourth radiator 14 is used to receive and transmit radio frequency signals in the sixth frequency band.

[0042] The first frequency band, the second frequency band, the third frequency band, the fourth frequency band, the fifth frequency band, and the sixth frequency band are different from each other. Exemplarily, the frequency ranges of the first frequency band, the second frequency band, the third frequency band, the fourth frequency band, the fifth frequency band, and the sixth frequency band are different from each other.

[0043] For example, the first radiator 11, the first sub-radiator 121, the second sub-radiator 122, the third radiator 13, and the fourth radiator 14 can each be one of a flexible printed circuit (FPC) antenna radiator, a laser direct structuring (LDS) antenna radiator, a print direct structuring (PDS) antenna radiator, and a metal radiator. In the embodiments of the present application, there is no further limitation on the radiator type of each radiator, and the types of each radiator can be the same or different. For example, in the case where the antenna device is applied to an electronic device and each radiator is a metal radiator, the metal radiator can be a mechanical design antenna (MDA) radiator designed using the metal embedded in the electronic device itself, or a metal frame.

[0044] The antenna device excites the first radiator 11 via a first feed point S1 to support the first frequency band, the first sub-radiator 121 via a second feed point S2 to support the second and third frequency bands, the first sub-radiator 121 via a third feed point S3 to support the fourth frequency band, the second sub-radiator 122 via a fourth feed point S4 to support the third and fifth frequency bands, the third sub-radiator 122 via a fourth feed point S4 to support the first frequency band, the third sub-radiator 13 via a fifth feed point S5 to support the first frequency band, and the fourth sub-radiator 14 via a sixth feed point S6 to support the second and sixth frequency bands, thereby achieving coverage of multiple different frequency bands. Furthermore, the second, third, and fourth frequency bands share the first sub-radiator 121, while the third and fifth frequency bands share the second sub-radiator 122. This improves the antenna's integration, facilitates antenna miniaturization, and allows for more space to be reserved for other antenna designs in electronic devices. In addition, the first radiator 11 and the third radiator 13 respectively support the first frequency band, the first sub-radiator 121 and the fourth radiator 14 respectively support the second frequency band, and the first sub-radiator 121 and the second sub-radiator 122 respectively support the third frequency band. That is, the same frequency band is supported by multiple radiators, which improves the antenna performance and helps to improve the communication performance of electronic devices.

[0045] Continuing with Figure 1, in one embodiment, the first frequency band includes the WiFi 5G band, the second frequency band includes the WiFi 2.4G band, the third frequency band includes the SUB 6G band, the fourth frequency band includes the LB (Low Frequency Band) band, the fifth frequency band includes the GPS L1 band, and the sixth frequency band includes the GPS L5 band. Exemplarily, the third frequency band includes the n78 band. Exemplarily, the fourth frequency band includes the B20 band.

[0046] The antenna device, through a shared radiator, covers the GPS L1, GPS L5, WiFi 2.4G, WiFi 5G, SUB 6G, and LB operating frequency bands. The high integration of multiple antennas with different frequency bands improves the utilization of the radiator, helps to miniaturize the antenna, and can reserve more space for other antenna designs used in electronic devices. Among them, the first sub-radiator 121 can support the WiFi 2.4G frequency band, the SUB 6G frequency band, and the LB frequency band, allowing low-frequency antennas to be arranged in a limited space to achieve dual low-frequency characteristics. In addition, the first radiator 11 and the third radiator 13 respectively support the WiFi 5G frequency band, the first sub-radiator 121 and the fourth radiator 14 respectively support the WiFi 2.4G frequency band, and the first sub-radiator 121 and the second sub-radiator 122 respectively support the SUB 6G frequency band. Multiple radiators jointly support the same frequency band, improving the antenna's transceiver performance for the WiFi 5G frequency band, the WiFi 2.4G frequency band, and the SUB 6G frequency band. In addition, the radiators supporting WiFi 5G band, WiFi 2.4G band and SUB 6G band are split and designed to improve antenna efficiency and help improve wall penetration performance.

[0047] Continuing with Figure 1, in one embodiment, the first radiator 11 and the first sub-radiator 121 are arranged along a first direction, and the third radiator 13 and the fourth radiator 14 are arranged along a second direction, wherein the first direction is orthogonal to the second direction. Exemplarily, in Figure 1, the first direction is the Y-axis direction, and the second direction is the X-axis direction. Exemplarily, at least a portion of the second sub-radiator 122 is arranged along the second direction. Exemplarily, the first radiator 11, the first sub-radiator 121, the third radiator 13, and the fourth radiator 14 are linear, and the second sub-radiator 122 is L-shaped; wherein, a portion of the second sub-radiator 122 is arranged along the first direction, and the remaining portion of the second sub-radiator 122 is arranged along the second direction.

[0048] The above-mentioned antenna device, by orthogonally arranging the first radiator 11 and the third radiator 13 that respectively support the first frequency band (such as the WiFi 5G band), makes the directional pattern of the antenna device radiating the first frequency band through the first radiator 11 and the directional pattern of the antenna device radiating the first frequency band through the first sub-radiator 121 have a complementary effect. In addition, by orthogonally arranging the first sub-radiator 121 and the fourth radiator 14 that respectively support the second frequency band (such as the WiFi 2.4G band), the directional pattern of the antenna device radiating the second frequency band through the first sub-radiator 121 and the directional pattern of the antenna device radiating the first frequency band through the fourth radiator 14 have a complementary effect. This is beneficial to reducing the blind spots of radio frequency signals in the first and second frequency bands, and further helps to improve the communication performance of electronic devices used in horizontal and vertical screen scenarios.

[0049] In one embodiment, as shown in Figure 2, the antenna device further includes a first filter circuit 31 and a second filter circuit 32. The first filter circuit 31 is connected to the second feed point S2 and the second feed source 22, respectively. That is, the second feed source 22 is connected to the second feed point S2 via the first filter circuit 31. The second feed source 22 excites the first sub-radiator 121 via the second feed point S2 through the first filter circuit 31 to support the second and third frequency bands. The first filter circuit 31 exhibits bandpass characteristics in the second and third frequency bands, respectively, and exhibits band-rejection characteristics in the fourth frequency band. When the first sub-radiator 121 operates in the second frequency band (e.g., WiFi 2.4G) and / or the third frequency band (e.g., the SUB 6G band), the first filter circuit 31 is in a bandpass state, or in a conducting state. When the first sub-radiator 121 operates in the fourth frequency band (e.g., the LB band), the first filter circuit 31 is in a band-rejection state, or in a disconnected state.

[0050] The second filter circuit 32 is connected to the third feed point S3 and the third feed source 23, respectively. That is, the third feed source 23 is connected to the third feed point S3 via the second filter circuit 32. The third feed source 23 excites the first sub-radiator 121 via the third feed point S3 through the second filter circuit 32 to support the fourth frequency band. The second filter circuit 32 exhibits band-stop characteristics in the second and third frequency bands, respectively, and band-pass characteristics in the fourth frequency band. When the first sub-radiator 121 operates in the second frequency band (e.g., WiFi 2.4G) and / or the third frequency band (e.g., SUB 6G band), the second filter circuit 32 is in a band-stop state, or in an off state. When the first sub-radiator 121 operates in the fourth frequency band (e.g., the LB band), the first filter circuit 31 is in a band-pass state, or in an on state. Exemplarily, when the second frequency band includes the WiFi 2.4G frequency band, the third frequency band includes the SUB 6G frequency band, and the fourth frequency band includes the LB frequency band, the second filtering circuit 32 is a low-pass filtering circuit.

[0051] In the above-mentioned antenna device, when the first sub-radiator 121 operates in the second frequency band (such as WiFi 2.4G) and / or the third frequency band (such as the SUB 6G band), the first filter circuit 31 has a bandpass characteristic, and the second filter circuit 32 has a band-stop characteristic. Therefore, the second excitation signal and the third excitation signal provided by the second feed source 22 can be excited by the first filter circuit 31 through the first feeding point S1 to support the second frequency band and the third frequency band, and the third feeding point S3 corresponding to the third feed source 23 is equivalent to a grounding effect, thereby preventing the radio frequency signals of the second frequency band and / or the third frequency band radiated by the first sub-radiator 121 from affecting the third feed source 23. Moreover, when the first sub-radiator 121 operates in the fourth frequency band (such as the LB band), the first filter circuit 31 has a band-stop characteristic. The second filter circuit 32 has a bandpass characteristic. Therefore, the fourth excitation signal provided by the third feed source 23 can pass through the second filter circuit 32 via the third feed point S3 to excite the first sub-radiator 121 to support the fourth frequency band. Furthermore, the second feed point S2 corresponding to the second feed source 22 is equivalent to a grounding effect, thereby preventing the influence of the RF signal in the fourth frequency band radiated by the first sub-radiator 121 on the second feed source 22. This reduces the mutual influence between the RF signals in the second, third, and fourth frequency bands that share the same radiator, thereby improving the radiation effect of the first sub-radiator 121 on the RF signals in the second, third, and fourth frequency bands, respectively, and thereby improving antenna performance. Through the first and second filter circuits 31 and 32, this antenna device reduces the mutual coupling between the RF signals in multiple frequency bands radiated by the first sub-radiator 121, thereby facilitating antenna miniaturization.

[0052] Continuing with Figure 2, in one embodiment, the antenna device further includes a third filter circuit 33 and a fourth filter circuit 34. The third filter circuit 33 is connected to the fourth feed point S4 and the fourth feed source 24, respectively. That is, the fourth feed source 24 is connected to the fourth feed point S4 via the third filter circuit 33. The fourth feed source 24 excites the second sub-radiator 122 via the fourth feed point S4 through the third filter circuit 33 to support the third and fifth frequency bands. The third filter circuit 33 exhibits bandpass characteristics in the third and fifth frequency bands, respectively, and exhibits band-rejection characteristics in the first frequency band. When the second sub-radiator 122 operates in the third frequency band (e.g., the SUB 6G band) and / or the fifth frequency band (e.g., the GPS L1 band), the third filter circuit 33 is in a bandpass state, or in a conducting state. When the third radiator 13 operates in the first frequency band (e.g., the WiFi 5G band), the third filter circuit 33 is in a band-rejection state, or in a disconnected state. Exemplarily, when the first frequency band includes the WiFi 5G frequency band, the third frequency band includes the SUB 6G frequency band, and the fifth frequency band includes the GPS L1 frequency band, the third filtering circuit 33 is a low-pass filtering circuit.

[0053] The fourth filter circuit 34 is connected to the fifth feed point S5 and the fifth feed source 25, respectively. That is, the fifth feed source 25 is connected to the fifth feed point S5 via the fourth filter circuit 34. The fifth feed source 25 excites the third radiator 13 via the fifth feed point S5 through the fourth filter circuit 34 to support the first frequency band. The fourth filter circuit 34 exhibits band-rejection characteristics in the third and fifth frequency bands, respectively, and band-pass characteristics in the first frequency band. When the second sub-radiator 122 operates in the third frequency band (e.g., the SUB 6G band) and / or the fifth frequency band (e.g., the GPS L1 band), the fourth filter circuit 34 is in a band-rejection state, or in an off state. When the third radiator 13 operates in the first frequency band (e.g., the WiFi 5G band), the fourth filter circuit 34 is in a band-pass state, or in an on state. Exemplarily, when the first frequency band includes the WiFi 5G frequency band, the third frequency band includes the SUB 6G frequency band, and the fifth frequency band includes the GPS L1 frequency band, the fourth filtering circuit 34 is a high-pass filtering circuit.

[0054] In the above-mentioned antenna device, when the second sub-radiator 122 operates in the third frequency band (such as the SUB 6G frequency band) and / or the fifth frequency band (such as the GPS L1 frequency band), the third filter circuit 33 has a band-pass characteristic, and the fourth filter circuit 34 has a band-stop characteristic. Therefore, the third excitation signal and the fifth excitation signal provided by the fourth feed source 24 can pass through the third filter circuit 33 and the fourth feeding point S4 to excite the second sub-radiator 122 to support the second frequency band and the third frequency band, and the fifth feeding point S5 corresponding to the fifth feed source 25 is equivalent to the grounding effect, thereby avoiding the influence of the radio frequency signal of the third frequency band and / or the fifth frequency band radiated by the second sub-radiator 122 on the fifth feed source 25; and, when the third radiator 13 operates in the first frequency band (such as the WiFi 5G frequency band), the third filter circuit 33 has a band-stop characteristic, and the fourth filter circuit 34 has a band-pass characteristic. Therefore, the first excitation signal provided by the fifth feed source 25 can pass through the fourth filter circuit 34 via the fifth feeding point S5 to excite the third radiator 13 to support the first frequency band, and the fourth feeding point S4 corresponding to the fourth feed source 24 is equivalent to the grounding effect, thereby avoiding the influence of the radio frequency signal of the first frequency band radiated by the third radiator 13 on the fourth feed source 24. That is, through the third filter circuit 33 and the fourth filter circuit 34, the isolation between the second sub-radiator 122 and the third radiator 13 is improved, thereby improving the radiation effect of the second sub-radiator 122 on the radio frequency signals of the third frequency band and the fifth frequency band respectively, and improving the radiation effect of the third radiator 13 on the radio frequency signal of the first frequency band, thereby improving the antenna performance, which is conducive to the miniaturization of the antenna.

[0055] In one embodiment, as shown in FIG3 , the target filter circuit includes at least one of a first filter circuit 31, a second filter circuit 32, a third filter circuit 33, and a fourth filter circuit 34. The target filter circuit includes a target capacitor and a target inductor connected in series, and the target filter circuit is connected to a corresponding feed source and a feed point, respectively. The number of target capacitors can be one or more, and the number of target inductors can be one or more, and the number is not limited here.

[0056] Exemplarily, the target filter circuit includes a first filter circuit 31, the target capacitor includes a first capacitor, and the target inductor includes a first inductor, that is, the first filter circuit 31 includes a first capacitor and a first inductor, wherein the first capacitor and the first inductor are connected in series, and the second feed source 22 is connected to the second feed point S2 via the first capacitor and the first inductor connected in series. Exemplarily, when the second frequency band includes the WiFi 2.4G band, the third frequency band includes the SUB 6G band, and the fourth frequency band includes the LB band, the first filter circuit 31 forms a high-pass filter circuit through the first capacitor and the first inductor connected in series.

[0057] Exemplarily, the target filter circuit includes a second filter circuit 32, the target capacitor includes a second capacitor, and the target inductor includes a second inductor, that is, the second filter circuit 32 includes a second capacitor and a second inductor, wherein the second capacitor and the second inductor are connected in series, and the third feed source 23 is connected to the third feed point S3 via the second capacitor and the second inductor connected in series. Exemplarily, when the second frequency band includes the WiFi 2.4G band, the third frequency band includes the SUB 6G band, and the fourth frequency band includes the LB band, the second filter circuit 32 forms a low-pass filter circuit through the second capacitor and the second inductor connected in series.

[0058] Exemplarily, the target filter circuit includes a third filter circuit 33, the target capacitor includes a third capacitor, and the target inductor includes a third inductor. That is, the third filter circuit 33 includes a third capacitor and a third inductor, wherein the third capacitor and the third inductor are connected in series, and the fourth feed source 24 is connected to the fourth feed point S4 via the third capacitor and the third inductor connected in series. Exemplarily, when the first frequency band includes the WiFi 5G band, the third frequency band includes the SUB 6G band, and the fifth frequency band includes the GPSL1 band, the third filter circuit 33 forms a low-pass filter circuit through the third capacitor and the third inductor connected in series.

[0059] Exemplarily, the target filter circuit includes a fourth filter circuit 34, the target capacitor includes a fourth capacitor, and the target inductor includes a fourth inductor, that is, the fourth filter circuit 34 includes a fourth capacitor and a fourth inductor, wherein the fourth capacitor and the fourth inductor are connected in series, and the fifth feed source 25 is connected to the fifth feed point S5 via the fourth capacitor and the fourth inductor connected in series. Exemplarily, when the first frequency band includes the WiFi 5G band, the third frequency band includes the SUB 6G band, and the fifth frequency band includes the GPSL1 band, the fourth filter circuit 34 forms a high-pass filter circuit through the fourth capacitor and the fourth inductor connected in series.

[0060] In the above-mentioned antenna device, the target filtering circuit includes at least one of the first filtering circuit 31, the second filtering circuit 32, the third filtering circuit 33 and the fourth filtering circuit 34, and the target filtering circuit includes a target capacitor and a target inductor connected in series. In this way, an LC bandpass filtering circuit is formed, so that the antenna device can reduce the mutual influence between the radio frequency signals in the second frequency band, the third frequency band and the fourth frequency band of the shared first sub-radiator 121 through the first filtering circuit 31 and the second filtering circuit 32, thereby improving the radiation effect of the first sub-radiator 121 on the radio frequency signals in the second frequency band, the third frequency band and the fourth frequency band respectively, and enable the antenna device to improve the isolation between the second sub-radiator 122 and the third radiator 13 through the third filtering circuit 33 and the fourth filtering circuit 34, thereby improving the radiation effect of the second sub-radiator 122 and the third radiator 13, thereby improving the antenna performance.

[0061] Please continue to refer to Figures 1 to 3. In one embodiment, the first grounding point G1 and the second feeding point S2 are respectively arranged close to the first gap d1, the first feeding point S1 and the third feeding point S3 are respectively arranged away from the first gap d1, the fifth feeding point S5 is arranged away from the third gap d3, the third grounding point G3 and the sixth feeding point S6 are respectively arranged close to the third gap d3, and the fourth grounding point G4 is arranged away from the third gap d3.

[0062] In one embodiment, the first grounding point G1 and the third feeding point S3 are respectively arranged close to the first gap d1, the first feeding point S1 and the second feeding point S2 are respectively arranged away from the first gap d1, the fifth feeding point S5 is arranged away from the third gap d3, the third grounding point G3 and the sixth feeding point S6 are respectively arranged close to the third gap d3, and the fourth grounding point G4 is arranged away from the third gap d3.

[0063] It should be noted that the positions of the second feeding point S2 and the third feeding point S3 can be appropriately arranged according to actual application scenarios and are not limited here.

[0064] In one embodiment, as shown in FIG4 , the first feed source 21 feeds a first excitation signal to the first radiator 11 via the first feeding point S1, thereby exciting the first radiator 11 to operate in a first resonant mode, so that the first radiator 11 supports a first frequency band. The first resonant mode is used to support the transmission and reception of radio frequency signals in the first frequency band. The first resonant mode is a quarter-wavelength mode of the portion of the radiator extending from the first feeding point S1 to the first grounding point G1, which radiates radio frequency signals in the first frequency band, such as radio frequency signals in the WiFi 5G band. Under the stimulation of the first excitation signal, the first radiator 11 can be excited to produce a λ / 4 wavelength mode to support the transmission and reception of radio frequency signals in the first frequency band (such as the WiFi 5G band). This enables the antenna device to transmit and receive radio frequency signals in the first frequency band, thereby meeting communication requirements in the first frequency band.

[0065] Continuing with FIG. 4 , in one embodiment, the second feed source 22 feeds a second excitation signal to the first sub-radiator 121 via the second feed point S2, thereby stimulating the second radiator 12 to operate in a second resonant mode, thereby enabling the second radiator 12 to support the second frequency band. The second resonant mode is configured to support the transmission and reception of RF signals in the second frequency band. The second resonant mode is a quarter-wavelength mode of the portion of the radiator extending from the second feed point S2 to the third feed point S3, radiating RF signals in the second frequency band, such as those in the WiFi 2.4G band. Under the stimulation of the second excitation signal, the first sub-radiator 121 can be stimulated to produce a λ / 4 wavelength mode, thereby supporting the transmission and reception of RF signals in the second frequency band (e.g., the WiFi 2.4G band). This enables the antenna device to transmit and receive RF signals in the second frequency band, thereby meeting communication requirements in the second frequency band.

[0066] The second feed source 22 feeds a third excitation signal to the first sub-radiator 121 via the second feed point S2, exciting the first sub-radiator 121 to operate in a third resonant mode, thereby enabling the second radiator 12 to support a third frequency band. The third resonant mode is used to support the transmission and reception of RF signals in the third frequency band. The third resonant mode is a quarter-wavelength mode of the portion of the radiator from the second feed point S2 to the third feed point S3, radiating RF signals in the third frequency band, such as RF signals in the SUB 6G band (e.g., N78 band). Under the stimulation of the third excitation signal, the first sub-radiator 121 can be excited to produce a λ / 4 wavelength mode to support the transmission and reception of RF signals in the third frequency band (e.g., SUB 6G N78 band). This enables the antenna device to transmit and receive RF signals in the third frequency band, thereby meeting communication requirements in the third frequency band.

[0067] Continuing with FIG. 4 , in one embodiment, the third feed source 23 feeds a fourth excitation signal to the first sub-radiator 121 via the third feed point S3, stimulating the first sub-radiator 121 to operate in a fourth resonant mode, enabling the first sub-radiator 121 to support a fourth frequency band. The fourth resonant mode is configured to support the transmission and reception of RF signals in the fourth frequency band. The fourth resonant mode is a quarter-wavelength mode of the portion of the radiator extending from the third feed point S3 to the second ground point G2, radiating RF signals in the fourth frequency band, such as LB band (e.g., B20 band). Under the stimulation of the fourth excitation signal, the first sub-radiator 121 can be excited to produce a λ / 4 wavelength mode, supporting the transmission and reception of RF signals in the fourth frequency band (e.g., B20 band). This enables the antenna device to transmit and receive RF signals in the fourth frequency band, thereby meeting communication requirements in the fourth frequency band.

[0068] Continuing with FIG. 4 , in one embodiment, the fourth feed source 24 feeds a third excitation signal to the second sub-radiator 122 via the fourth feed point S4, stimulating the second sub-radiator 122 to operate in a fifth resonant mode, enabling the second sub-radiator 122 to support the third frequency band. The fifth resonant mode is used to support the transmission and reception of RF signals in the third frequency band. The fifth resonant mode is a quarter-wavelength mode of the portion of the radiator extending from the fourth feed point S4 to the second ground point G2, radiating RF signals in the third frequency band, such as those in the SUB 6G band (e.g., n78 band). Under the stimulation of the third excitation signal, the second sub-radiator 122 can be excited to produce a λ / 4 wavelength mode, supporting the transmission and reception of RF signals in the third frequency band (e.g., SUB 6G n78 band). This enables the antenna device to transmit and receive RF signals in the third frequency band, thereby meeting communication requirements in the third frequency band.

[0069] The fourth feed source 24 feeds a fifth excitation signal to the second sub-radiator 122 via the fourth feed point S4, thereby exciting the second sub-radiator 122 to operate in a sixth resonant mode, thereby enabling the second sub-radiator 122 to support the fifth frequency band. The sixth resonant mode is used to support the transmission and reception of radio frequency signals in the fifth frequency band. The sixth resonant mode is a quarter-wavelength mode of the portion of the radiator extending from the fourth feed point S4 to the second ground point G2, radiating radio frequency signals in the fifth frequency band, such as those in the GPS L1 band. Under the stimulation of the third excitation signal, the second sub-radiator 122 can be excited to produce a λ / 4 wavelength mode, thereby supporting the transmission and reception of radio frequency signals in the fifth frequency band (e.g., the GPS L1 band). This enables the antenna device to transmit and receive radio frequency signals in the fifth frequency band, thereby meeting communication requirements in the fifth frequency band.

[0070] Continuing with FIG4 , in one embodiment, the fifth feed source 25 feeds a first excitation signal to the third radiator 13 via the fifth feed point S5, thereby exciting the third radiator 13 to operate in the seventh resonant mode, so that the third radiator 13 supports the first frequency band. The seventh resonant mode is used to support the transmission and reception of radio frequency signals in the fifth frequency band. The seventh resonant mode is a quarter-wavelength mode of the portion of the radiator extending from the fifth feed point S5 to the third ground point G3, which radiates radio frequency signals in the first frequency band, such as radio frequency signals in the WiFi 5G band. Under the stimulation of the first excitation signal, the third radiator 13 can be excited to produce a λ / 4 wavelength mode to support the transmission and reception of radio frequency signals in the first frequency band (e.g., the WiFi 5G band), further enabling the antenna device to transmit and receive radio frequency signals in the first frequency band, thereby meeting communication requirements in the first frequency band.

[0071] Continuing with FIG. 4 , in one embodiment, the sixth feed source 26 feeds a second excitation signal to the fourth radiator 14 via the sixth feed point S6, thereby stimulating the fourth radiator 14 to operate in the eighth resonant mode, thereby enabling the fourth radiator 14 to support the second frequency band. The eighth resonant mode is used to support the transmission and reception of RF signals in the second frequency band. The eighth resonant mode is a half-wavelength mode of the portion of the radiator extending from the sixth feed point S6 to the fourth ground point G4, radiating RF signals in the second frequency band, such as those in the WiFi 2.4G band. Under the stimulation of the second excitation signal, the fourth radiator 14 can be stimulated to produce a λ / 4 wavelength mode, thereby supporting the transmission and reception of RF signals in the second frequency band (e.g., the WiFi 2.4G band). This further enables the antenna device to transmit and receive RF signals in the second frequency band, thereby meeting communication requirements in the second frequency band.

[0072] The sixth feed source 26 feeds a sixth excitation signal to the fourth radiator 14 via the sixth feed point S6, thereby exciting the fourth radiator 14 to operate in a ninth resonant mode, so that the fourth radiator 14 supports the sixth frequency band. The ninth resonant mode is used to support the transmission and reception of radio frequency signals in the sixth frequency band. The ninth resonant mode is a composite left-right-handed (CRLH) mode of the portion of the radiator extending from the sixth feed point S6 to the fourth ground point G4, which radiates radio frequency signals in the sixth frequency band, such as radio frequency signals in the GPS L5 band. Under the stimulation of the sixth excitation signal, the fourth radiator 14 can be excited into a CRLH mode to support the transmission and reception of radio frequency signals in the sixth frequency band (such as the GPS L5 band). This enables the antenna device to transmit and receive radio frequency signals in the sixth frequency band, thereby meeting communication requirements in the sixth frequency band.

[0073] 3 , in one embodiment, an antenna device is provided, comprising a first radiator 11, a second radiator 12, a third radiator 13, a fourth radiator 14, a first feed 21, a second feed 22, a third feed 23, a fourth feed 24, a fifth feed 25, a sixth feed 26, a first filter circuit 31, a second filter circuit 32, a third filter circuit 33, and a fourth filter circuit 34. A first gap d1 is defined between the first radiator 11 and the second radiator 12, a second gap d2 is defined between the second radiator 12 and the third radiator 13, and a third gap d3 is defined between the third radiator 13 and the fourth radiator 14.

[0074] The first radiator 11 is provided with a first feed point S1 and a first ground point G1. The first ground point G1 is located near the first gap d1 and is connected to the common ground GND. The first feed point S1 is located away from the first gap d1. The first feed source 21 is connected to the first feed point S1 via a first filter circuit 31. The first feed source 21 excites the first radiator 11 through the first filter circuit 31 via the first feed point S1 to support WiFi 5G.

[0075] The second radiator 12 has a second grounding point G2, which divides the second radiator 12 into a first sub-radiator 121 and a second sub-radiator 122. The second grounding point G2 is connected to the common ground GND. The first sub-radiator 121 is located near the first gap d1. The first sub-radiator 121 has a second feeding point S2 and a third feeding point S3. The second feeding point S2 is located near the first gap d1, while the third feeding point S3 is located away from the first gap d1. The second feed source 22 is connected to the second feeding point S2 via the second filtering circuit 32. The second feed source 22 excites the first sub-radiator 121 through the second filtering circuit 32 via the second feeding point S2, supporting the WiFi 2.4G band and the SUB 6G band (such as the n78 band). The third feed source 23 is connected to the third feeding point S3 via the third filtering circuit 33. The third feed source 23 excites the first sub-radiator 121 via the third feeding point S3 through the third filtering circuit 33 to support the LB frequency band (such as the B20 frequency band).

[0076] The second sub-radiator 122 is provided with a fourth feeding point S4. The fourth feed source 24 is connected to the fourth feeding point S4 via the third filtering circuit 33. The fourth feed source 24 excites the second sub-radiator 122 via the fourth feeding point S4 through the third filtering circuit 33 to support the SUB6G frequency band (e.g., n78 frequency band) and the GPS L1 frequency band.

[0077] The third radiator 13 is provided with a fifth feed point S5 and a third ground point G3. The third ground point G3 is located away from the second gap d2 and is connected to the common ground GND. The fifth feed point S5 is located near the second gap d2. The fifth feed source 25 is connected to the fifth feed point S5 via the fourth filter circuit 34. The fifth feed source 25 excites the third radiator 13 via the fifth feed point S5 via the fourth filter circuit 34 in the WiFi 5G band.

[0078] The fourth radiator 14 is provided with a sixth feed point S6 and a fourth ground point G4. The fourth ground point G4 is located away from the third gap d3 and is connected to the common ground GND. The sixth feed point S6 is located near the third gap d3. The sixth feed point S6 is connected to the sixth feed source 26. The sixth feed source 26 excites the fourth radiator 14 via the sixth feed point S6 to support the WiFi 2.4G band and the GPS L5 band.

[0079] The first radiator 11 and the first sub-radiator 121 are arranged along a first direction, the third radiator 13 and the fourth radiator 14 are arranged along a second direction, wherein the first direction is orthogonal to the second direction. At least a portion of the second sub-radiator 122 is arranged along the second direction.

[0080] The first filter circuit 31 includes a first capacitor and a first inductor. The second feed source 22 is connected to the first feed point S1 via the first capacitor and the first inductor connected in series. The first filter circuit 31 exhibits bandpass characteristics in the WiFi 2.4 GHz band and the SUB 6 GHz band (e.g., the n78 band), respectively. It also exhibits band-stop characteristics in the LB band (e.g., the B20 band).

[0081] The second filter circuit 32 includes a second capacitor and a second inductor. The third feed source 23 is connected to the third feed point S3 via the second capacitor and the second inductor in series. The second filter circuit 32 exhibits band-stop characteristics in the WiFi 2.4 GHz band and the SUB 6 GHz band (e.g., the n78 band), and exhibits band-pass characteristics in the LB band (e.g., the B20 band).

[0082] The third filter circuit 33 includes a third capacitor and a third inductor. The fourth feed source 24 is connected to the fourth feed point S4 via the third capacitor and the third inductor connected in series. The third filter circuit 33 exhibits bandpass characteristics in the SUB 6G frequency band (e.g., the n78 band) and the GPS L1 band, respectively, and exhibits band-rejection characteristics in the WiFi 5G band.

[0083] The fourth filter circuit 34 includes a fourth capacitor and a fourth inductor. The fifth feed source 25 is connected to the fifth feed point S5 via the fourth capacitor and fourth inductor connected in series. The fourth filter circuit 34 exhibits band-stop characteristics in the SUB 6G frequency band (e.g., n78 band) and the GPS L1 band, respectively. The fourth filter circuit 34 exhibits band-pass characteristics in the WiFi 5G frequency band.

[0084] Based on the above antenna device, simulation results were obtained by applying it to electronic devices. Figure 5 is a schematic diagram of the S21 parameter curves of the antenna device provided by the embodiment of the present application and the traditional solution. As can be seen from Figure 5, the isolation between the second sub-radiator 122 and the third radiator 13 in the present application is improved compared to the traditional solution.

[0085] Figures 6a and 6b are schematic diagrams of S-parameter curves of the antenna device provided in an embodiment of the present application, respectively. As shown in curve S1, the first feed source 21 resonates in the WiFi 5G band via the first radiator 11, and supports operation in the WiFi 5G band; as shown in curve S2, the second feed source 22 resonates in the WiFi 2.4G band and the n78 band via the first sub-radiator, respectively, and supports operation in the WiFi 2.4G band and the n78 band, respectively; as shown in curve S3, the third feed source 23 resonates in the B20 band via the first sub-radiator 121, and supports operation in the B20 band; as shown in curve S4, the fourth feed source 24 resonates in the GPS L1 band and the n78 band via the second sub-radiator 122, respectively, and supports operation in the GPS L1 band and the n78 band, respectively; as shown in curve S5, the fifth feed source 25 resonates in the WiFi 5G band via the third radiator 13, and supports operation in the WiFi 5G frequency band; as shown in the curve, the sixth feed source 26 resonates in the GPS L5 frequency band and the WIFI2.4G frequency band through the fourth radiator 14, respectively, and supports working in the GPS L5 frequency band and the WIFI2.4G frequency band respectively.

[0086] Figure 7 shows a 3D simulated radiation pattern of the first radiator 11 in the antenna device according to an embodiment of the present application. Figure 8 shows a 3D simulated radiation pattern of the third radiator 13 in the antenna device according to an embodiment of the present application. Figures 9a and 9b show the 3D simulated radiation patterns of the first radiator 11 and the third radiator 13, respectively, in the antenna device according to an embodiment of the present application. The radiation pattern simulation results shown in Figures 7, 8, 9a, and 9b demonstrate that the antenna device exhibits complementary patterns in the first frequency band.

[0087] Figure 10 shows a 3D simulated radiation pattern of the first sub-radiator 121 in the antenna device according to an embodiment of the present application. Figure 11 shows a 3D simulated radiation pattern of the fourth radiator 14 in the antenna device according to an embodiment of the present application. Figures 12a and 12b show the 3D simulated radiation patterns of the first sub-radiator 121 and the fourth radiator 14, respectively, in the antenna device according to an embodiment of the present application. The radiation pattern simulation results shown in Figures 10, 11, 12a, and 12b demonstrate that the antenna device exhibits complementary patterns in the second frequency band.

[0088] The above-mentioned antenna device uses a common radiator for antennas of different frequency bands and adds filtering circuits of different frequency bands to the main feed path to achieve coverage of multiple working frequency bands including GPS L1 / L5, WiFi2.4G / 5G, N78, and LB. This greatly improves the utilization rate of the MDA architecture frame and is more conducive to the integration and miniaturization of terminal equipment. In addition, the present application can improve antenna efficiency and actual wall penetration performance by splitting the design of the WiFi 2.4G MIMO antenna and the design of the WiFi 5G MIMO antenna. In addition, the orthogonal layout of the two radiators supporting the WiFi 2.4G frequency band and the orthogonal layout of the two radiators supporting the WiFi 5G frequency band reduce the mutual influence of the same-frequency antennas and improve the isolation of the two antennas. In addition, due to the orthogonal layout of the WiFi2.4G antenna and the orthogonal layout of the WiFi 5G antenna, it is more conducive to the complementary directional patterns of the WiFi2.4G / 5G radiation signals, taking into account the incoming wave direction of the signals at all angles, reducing the blind spots of the WiFi signal, and improving the user experience in both horizontal and vertical screen scenarios.

[0089] Based on the same inventive concept, in one embodiment, as shown in FIG13 , the present application further provides an electronic device, including the antenna device as described above. The specific structure of the antenna device can be found in the above-mentioned related introduction and will not be repeated here.

[0090] The electronic device includes an antenna device, which includes a first radiator 11, a second radiator 12, a third radiator 13, a fourth radiator 14, a first feed source 21, a second feed source 22, a third feed source 23, a fourth feed source 24, a fifth feed source 25 and a sixth feed source 26, wherein a first gap d1 is provided between the first radiator 11 and the second radiator 12, a second gap d2 is provided between the second radiator 12 and the third radiator 13, and a third gap d3 is provided between the third radiator 13 and the fourth radiator 14; wherein the first radiator 11 is provided with a first feeding point S1 and a first grounding point G1, and the first feed source 21 excites the first radiator 11 through the first feeding point S1 to support a first frequency band; the second radiator 12 is provided with a second grounding point G2, and the second grounding point G2 divides the second radiator 12 into a first sub-radiator 121 and a The second sub-radiator 122 and the first sub-radiator 121 are provided with a second feeding point S2 and a third feeding point S3, the second sub-radiator 122 is provided with a fourth feeding point S4, the second feed source 22 excites the first sub-radiator 121 via the second feeding point S2 to support the second frequency band and the third frequency band, the third feed source 23 excites the first sub-radiator 121 via the third feeding point S3 to support the fourth frequency band, and the fourth feed source 24 excites the second sub-radiator 122 via the fourth feeding point S4 to support the third frequency band and the fifth frequency band; the third radiator 13 is provided with a fifth feeding point S5 and a third grounding point G3, the fifth feed source 25 excites the third radiator 13 via the fifth feeding point S5 to support the first frequency band; the fourth radiator 14 is provided with a sixth feeding point S6 and a fourth grounding point G4, and the sixth feed source 26 excites the fourth radiator 14 via the sixth feeding point S6 to support the second frequency band and the sixth frequency band.

[0091] An electronic device provided in an embodiment of the present application, wherein the antenna device excites the first radiator 11 through the first feeding point S1 through the first feed source 21 to support the first frequency band, and excites the first sub-radiator 121 through the second feeding point S2 through the second feed source 22 to support the second frequency band and the third frequency band, and excites the first sub-radiator 121 through the third feed source 23 through the third feeding point S3 to support the fourth frequency band, and further excites the second sub-radiator 122 through the fourth feed source 24 through the fourth feeding point S4 to support the third frequency band and the fifth frequency band, and further excites the third radiator 13 through the fifth feed source 25 through the fifth feeding point S5 to support the first frequency band, and excites the fourth radiator 14 through the sixth feed source 26 through the sixth feeding point S6 to support the second frequency band and the sixth frequency band, thereby achieving coverage of multiple different frequency bands. In addition, the second, third, and fourth frequency bands share the first sub-radiator 121, while the third and fifth frequency bands share the second sub-radiator 122. This improves the antenna's integration, facilitates antenna miniaturization, and allows for more space to be reserved for other antenna designs in electronic devices. Furthermore, the first radiator 11 and the third radiator 13 each support the first frequency band, the first sub-radiator 121 and the fourth radiator 14 each support the second frequency band, and the first sub-radiator 121 and the second sub-radiator 122 each support the third frequency band. This means that multiple radiators support the same frequency band, improving antenna performance and communication performance.

[0092] Please continue referring to Figure 13. In one embodiment, the electronic device includes a top edge 401 and a bottom edge 402 disposed oppositely, as well as a first side edge 403 and a second side edge 404 disposed oppositely. The first radiator 11 and the first sub-radiator 121 of the antenna device are respectively located on target sides, and at least a portion of the second sub-radiator 122 of the antenna device, and the third radiator 13 and the fourth radiator 14 of the antenna device are respectively located on the top edge 401. The target side edge is one of the first side edge 403 and the second side edge 404, for example, the target side edge is the first side edge 403, or the target side edge is the second side edge 404.

[0093] In this embodiment, by respectively arranging the first radiator 11 and the first sub-radiator 121 in the antenna device on the target side, and respectively locating at least part of the second sub-radiator 122, the third radiator 13 and the fourth radiator 14 on the top edge 401, the antenna device can have better antenna efficiency, thereby improving the communication performance of the electronic device. For example, the first radiator 11 and the third radiator 13 respectively support the WiFi 5G frequency band, the first sub-radiator 121 supports the WiFi 2.4G frequency band, the SUB 6G (such as n78) frequency band and the LB (such as B20) frequency band, the second sub-radiator 122 supports the SUB 6G (such as n78) frequency band and the GPS L1 frequency band, the third radiator 13 supports the WiFi 5G frequency band, and the fourth radiator 14 supports the WiFi 2.4G frequency band and the GPS L5 frequency band. The antenna device is set close to the top edge 401201, and the electronic device can support the transmission and reception of radio frequency signals of WiFi 2.4G / 5G, GPS L1 / L5, SUB 6G and LB frequency bands, meet the communication requirements of multiple frequency bands, and can achieve precise positioning and satellite communication performance.

[0094] As shown in FIG14 , further explanation is provided by taking a mobile phone 50 as an example of an electronic device. Specifically, as shown in FIG14 , the mobile phone 50 may include a memory 51 (which optionally includes one or more computer-readable storage media), a processing circuit 52, an input / output (I / O) subsystem 53, and at least one antenna device 54 as described in any of the aforementioned embodiments. These components optionally communicate via one or more communication buses or signal lines 55. Those skilled in the art will appreciate that the mobile phone 50 shown in FIG14 does not limit the scope of a mobile phone and may include more or fewer components than shown, or may combine certain components, or may have different component arrangements. The various components shown in FIG14 are implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application-specific integrated circuits.

[0095] The memory 51 optionally includes a high-speed random access memory and optionally includes a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Exemplarily, the software components stored in the memory 51 include an operating system 511, a communication module (or instruction set) 512, a global positioning system (GPS) module (or instruction set) 513, etc.

[0096] The processing circuit 52 may be used to control the operation of the mobile phone 50. The processing circuit 52 may be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, and the like.

[0097] The I / O subsystem 53 couples input / output peripherals on the phone 50, such as a keypad and other input control devices, to a peripheral device interface. The I / O subsystem 53 optionally includes a touch screen, buttons, a tone generator, an accelerometer (motion sensor), ambient light sensors and other sensors, light-emitting diodes and other status indicators, a data port, and the like. For example, a user can control the operation of the phone 50 by supplying commands via the I / O subsystem 53, and can receive status information and other output from the phone 50 using the output resources of the I / O subsystem 53. For example, a user can turn the phone on or off by pressing button 531.

[0098] In the description of this specification, reference to the terms "some embodiments" or "other embodiments" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0099] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. An antenna device, characterized in that: include: A first radiator, a second radiator, a third radiator, a fourth radiator, a first feed source, a second feed source, a third feed source, a fourth feed source, a fifth feed source and a sixth feed source, wherein a first gap is provided between the first radiator and the second radiator, a second gap is provided between the second radiator and the third radiator, and a third gap is provided between the third radiator and the fourth radiator; wherein, The first radiator is provided with a first feeding point and a first grounding point, the first feed source excites the first radiator to support a first frequency band via the first feeding point; the second radiator is provided with a second grounding point, the second grounding point divides the second radiator into a first sub-radiator and a second sub-radiator, the first sub-radiator is provided with a second feeding point and a third feeding point, the second sub-radiator is provided with a fourth feeding point, the second feed source excites the first sub-radiator to support a second frequency band and a third frequency band via the second feeding point, the third feed source excites the first sub-radiator to support a fourth frequency band via the third feeding point, and the fourth feed source excites the second sub-radiator to support the third frequency band and a fifth frequency band via the fourth feeding point; the third radiator is provided with a fifth feeding point and a third grounding point, the fifth feed source excites the third radiator to support the first frequency band via the fifth feeding point; the fourth radiator is provided with a sixth feeding point and a fourth grounding point, the sixth feed source excites the fourth radiator to support the second frequency band and the sixth frequency band via the sixth feeding point.

2. The antenna device according to claim 1, characterized in that The first frequency band includes a WiFi 5G frequency band, the second frequency band includes a WiFi 2.4G frequency band, the third frequency band includes a SUB 6G frequency band, the fourth frequency band includes a LB frequency band, the fifth frequency band includes a GPS L1 frequency band, and the sixth frequency band includes a GPS L5 frequency band.

3. The antenna device according to claim 1, characterized in that: The first radiator and the first sub-radiator are arranged along a first direction, and the third radiator and the fourth radiator are arranged along a second direction, wherein the first direction is orthogonal to the second direction.

4. The antenna device according to claim 1, characterized in that: The antenna device further comprises a first filter circuit and a second filter circuit, wherein the first filter circuit is connected to the second feeding point and the second feed source respectively, the first filter circuit presents a bandpass characteristic in the second frequency band and the third frequency band respectively, and the first filter circuit presents a bandstop characteristic in the fourth frequency band; The second filter circuit is connected to the third feeding point and the third feed source respectively, and the second filter circuit has a band-stop characteristic in the second frequency band and the third frequency band respectively, and the second filter circuit has a band-pass characteristic in the fourth frequency band.

5. The antenna device according to claim 4, characterized in that: The antenna device further includes a third filter circuit and a fourth filter circuit, wherein the third filter circuit is connected to the fourth feeding point and the fourth feed source respectively, the third filter circuit has a bandpass characteristic in the third frequency band and the fifth frequency band respectively, and the third filter circuit has a band-stop characteristic in the first frequency band; The fourth filter circuit is connected to the fifth feeding point and the fifth feed source respectively, and the fourth filter circuit has a band-stop characteristic in the third frequency band and the fifth frequency band respectively, and the fourth filter circuit has a band-pass characteristic in the first frequency band.

6. The antenna device according to claim 5, characterized in that The target filtering circuit includes at least one of the first filtering circuit, the second filtering circuit, the third filtering circuit and the fourth filtering circuit; The target filter circuit includes a target capacitor and a target inductor connected in series, and the target filter circuit is connected to a corresponding feed source and a feeding point respectively.

7. The antenna device according to any one of claims 1 to 6, characterized in that: The first grounding point and the second feeding point are respectively arranged close to the first gap, the first feeding point and the third feeding point are respectively arranged away from the first gap, the fifth feeding point is arranged away from the third gap, the third grounding point and the sixth feeding point are respectively arranged close to the third gap, and the fourth grounding point is arranged away from the third gap.

8. The antenna device according to any one of claims 1 to 6, characterized in that: The first feed source feeds a first excitation signal to the first radiator via the first feeding point to excite the first radiator to operate in a first resonant mode so that the first radiator supports the first frequency band; wherein the first resonant mode is a quarter-wavelength mode of a portion of the radiator from the first feeding point to the first grounding point.

9. The antenna device according to any one of claims 1 to 6, characterized in that: The second feed source feeds a second excitation signal to the first sub-radiator via the second feeding point to excite the second radiator to operate in a second resonance mode, so that the second radiator supports the second frequency band; wherein the second resonance mode is a quarter-wavelength mode of a portion of the radiator from the second feeding point to the third feeding point; The second feed source feeds a third excitation signal to the first sub-radiator via the second feeding point to excite the first sub-radiator to operate in a third resonant mode so that the second radiator supports the third frequency band; wherein the third resonant mode is a quarter-wavelength mode of a portion of the radiator from the second feeding point to the third feeding point.

10. The antenna device according to any one of claims 1 to 6, characterized in that: The third feed source feeds a fourth excitation signal to the first sub-radiator via the third feeding point, to excite the first sub-radiator to operate in a fourth resonant mode, so that the first sub-radiator supports the fourth frequency band; wherein the fourth resonant mode is a quarter-wavelength mode of a portion of the radiator from the third feeding point to the second grounding point.

11. The antenna device according to any one of claims 1 to 6, characterized in that: The fourth feed source feeds the third excitation signal to the second sub-radiator via the fourth feeding point, to excite the second sub-radiator to operate in a fifth resonance mode, so that the second sub-radiator supports the third frequency band; wherein the fifth resonance mode is a quarter-wavelength mode of a portion of the radiator from the fourth feeding point to the second grounding point; The fourth feed source feeds a fifth excitation signal to the second sub-radiator via the fourth feeding point, to excite the second sub-radiator to operate in a sixth resonant mode, so that the second sub-radiator supports the fifth frequency band; wherein the sixth resonant mode is a quarter-wavelength mode of a portion of the radiator from the fourth feeding point to the second grounding point.

12. The antenna device according to any one of claims 1 to 6, characterized in that: The fifth feed source feeds the first excitation signal to the third radiator via the fifth feeding point, exciting the third radiator to operate in a seventh resonance mode so that the third radiator supports the first frequency band; wherein the seventh resonance mode is a quarter-wavelength mode of a portion of the radiator from the fifth feeding point to the third grounding point.

13. The antenna device according to any one of claims 1 to 6, characterized in that: The sixth feed source feeds the second excitation signal to the fourth radiator via the sixth feeding point, to excite the fourth radiator to operate in an eighth resonance mode, so that the fourth radiator supports the second frequency band; wherein the eighth resonance mode is a half-wavelength mode of a portion of the radiator from the sixth feeding point to the fourth grounding point; The sixth feed source feeds a sixth excitation signal to the fourth radiator via the sixth feeding point, to excite the fourth radiator to operate in a ninth resonance mode, so that the fourth radiator supports the sixth frequency band; wherein the ninth resonance mode is a composite left-right-hand mode of a portion of the radiator from the sixth feeding point to the fourth grounding point.

14. An electronic device, characterized in that: Comprising the antenna device according to any one of claims 1-13.

15. The electronic device according to claim 14, characterized in that: The electronic device also includes a top edge and a bottom edge that are relatively arranged, and a first side edge and a second side edge that are relatively arranged, wherein the first radiator and the first sub-radiator in the antenna device are respectively located on the target side edge, and the target side edge is one of the first side edge and the second side edge, and at least part of the second sub-radiator, the third radiator, and the fourth radiator in the antenna device are respectively located on the top edge.

Images