Antenna assembly and electronic device

Abstract

The present disclosure relates to an antenna assembly and an electronic device, wherein the antenna assembly comprises a first radiator and a second radiator, the first radiator comprises a first radiation section, a first ground section and a second radiation section, the first ground section connects the first radiation section and the second radiation section, the working frequency band of the first radiation section covers a first frequency band, the working frequency band of the second radiation section covers at least a second frequency band, the first radiation section has a distal end portion away from the second radiation section, an end portion of the second radiator is oppositely and spacedly arranged with the distal end portion, and the working frequency band of the second radiator covers at least a third frequency band, wherein the second frequency band and the third frequency band have an overlapping frequency band. Through the above technical solution, the performance of the antenna and the competitiveness of the product can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of antennas, and more particularly to antenna assemblies and electronic devices. Background Technology

[0002] In related technologies, GPS (Global Positioning System) antennas are generally designed in combination with WIFI 2.4G antennas. This requires the addition of a combiner in the radio frequency front-end device. The addition of the combiner will increase the link loss, resulting in a decrease in the performance of the GPS antenna. Summary of the Invention

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

[0004] According to a first aspect of the present disclosure, an antenna assembly is provided, including a first radiator and a second radiator. The first radiator includes a first radiating segment, a first ground segment, and a second radiating segment. The first ground segment connects the first radiating segment and the second radiating segment. The operating frequency band of the first radiating segment covers a first frequency band. The operating frequency band of the second radiating segment at least covers a second frequency band. The first radiating segment has a distal end portion remote from the second radiating segment. An end portion of the second radiator is opposite to and spaced apart from the distal end portion. The operating frequency band of the second radiator at least covers a third frequency band, wherein the second frequency band and the third frequency band have overlapping frequency bands.

[0005] Optionally, the overlapping frequency band is between 2.400 GHz and 2.4835 GHz.

[0006] Optionally, the first frequency band is the first GPS frequency band.

[0007] Optionally, the first grounding segment has a first side and a second side that are respectively connected to the first radiator and the second radiator, and the distance between the first side and the second side is 1mm-4mm.

[0008] Optionally, the second radiator includes a third radiating segment, a fourth radiating segment, and a second grounding segment. The second grounding segment connects the third radiating segment and the fourth radiating segment. The end of the fourth radiating segment is disposed opposite to the distal end. The third radiating segment at least covers the third frequency band, and the fourth radiating segment at least covers the fourth frequency band.

[0009] Optionally, the third frequency band includes a preset frequency band and an NFC frequency band. The preset frequency band includes the overlapping frequency band. The third radiating segment is provided with a third feed point and a fourth feed point. The third feed point corresponds to the preset frequency band, and the fourth feed point corresponds to the NFC frequency band.

[0010] Optionally, the preset frequency band includes the WIFI 2.4G frequency band and the second GPS frequency band.

[0011] Optionally, the first GPS frequency band is the L1 frequency band, and the second GPS frequency band is the L5 frequency band.

[0012] Optionally, the fourth feed point is located at the end of the third radiating segment away from the second grounding segment, and the third feed point is located between the second grounding segment and the fourth feed point.

[0013] Optionally, the fourth frequency band includes the WIFI 5G frequency band and the N77 frequency band, and the fourth radiation segment is provided with a fifth feed point, which is shared by the WIFI 5G frequency band and the N77 frequency band.

[0014] Optionally, the antenna assembly further includes a first grounding electrode, which is located in a second direction on the side of the second radiator away from the first radiator, and the first grounding electrode is spaced apart from the second radiator.

[0015] According to a second aspect of the present disclosure, an electronic device is provided, including the antenna assembly described above.

[0016] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: In this disclosure, the operating frequency band of the first radiating segment of the first radiator can cover the first frequency band, and the operating frequency band of the second radiating segment can at least cover the second frequency band. The first radiating segment and the second radiating segment share a first grounding segment for grounding. Since the second radiator is located on one side of the first radiator and the two are spaced apart, even when both the second and third frequency bands include overlapping frequency bands, the above antenna arrangement can ensure the isolation between the overlapping frequency band antennas and make the two antennas as far apart as possible, which is beneficial to improving antenna performance and product competitiveness. At the same time, by ensuring the isolation between the overlapping frequency band antennas through the above layout design, the size of the first grounding segment can be shortened, thus saving stacking space in a limited environment and providing space for the design of other antennas.

[0017] 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

[0018] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0019] Figure 1 This is a schematic diagram of the structure of the antenna assembly in an exemplary embodiment of this disclosure;

[0020] Figure 2 This is a schematic diagram showing the dimensions and location of the antenna assembly in an exemplary embodiment of this disclosure.

[0021] Explanation of reference numerals in the attached figures

[0022] 1-First radiator; 11-First radiating segment; 111-First part; 112-Second part; 113-First feed point; 12-First grounding segment; 13-Second radiating segment; 131-Second feed point; 2-Second radiator; 21-Third radiating segment; 211-Third feed point; 212-Fourth feed point; 22-Fourth radiating segment; 221-Fifth feed point; 23-Second grounding segment; 3-First grounding body. Detailed Implementation

[0023] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0024] In this disclosure, unless otherwise stated, the directional terms "far" and "near" are used relative to a reference point; "near" refers to a direction closer to the reference point, and "far" refers to a direction farther from the reference point. Furthermore, terms such as "first" and "second" used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0025] The antenna assembly disclosed herein can be used in electronic devices (e.g., mobile phones, tablets, etc.). The accompanying drawings of this disclosure are merely illustrative of the structure and distribution of the antenna assembly and should not be construed as limiting the scope of this disclosure.

[0026] According to specific embodiments of this disclosure, refer to the appendix. Figure 1As shown in the figure, this disclosure provides an antenna assembly, which includes a first radiator 1. The first radiator 1 includes a first radiating segment 11, a first grounding segment 12, and a second radiating segment 13. The first grounding segment 12 connects the first radiating segment 11 and the second radiating segment 13. The operating frequency band of the first radiating segment 11 covers a first frequency band, and the operating frequency band of the second radiating segment 13 at least covers a second frequency band. The first radiating segment 11 has a distal end that is away from the second radiating segment 13. The end of the second radiator 2 is opposite to and spaced apart from the distal end, and the operating frequency band of the second radiator 2 at least covers a third frequency band, wherein the second frequency band and the third frequency band have overlapping frequency bands.

[0027] Through the above technical solution, in this disclosure, the operating frequency band of the first radiating segment 11 of the first radiator 1 can cover the first frequency band, and the operating frequency band of the second radiating segment 13 can at least cover the second frequency band. The first radiating segment 11 and the second radiating segment 13 share the first grounding segment 12 for grounding. Since the second radiator is located on one side of the first radiator and the two are spaced apart, even when both the second and third frequency bands include overlapping frequency bands, the above antenna arrangement can ensure the isolation between the overlapping frequency band antennas and make the two antennas as far apart as possible, which is beneficial to improving antenna performance and product competitiveness. At the same time, by ensuring the isolation between the overlapping frequency band antennas through the above layout design, the size of the first grounding segment can be shortened, thus saving stacking space in a limited environment and providing space for the design of other antennas.

[0028] The overlapping frequency band can be between 2.400GHz and 2.4835GHz. In the embodiments provided in this disclosure, the overlapping frequency band can be the WIFI 2.4G frequency band. Since the second radiator 2 is located on one side of the first radiator 1 and the two are spaced apart, the isolation between the two WIFI 2.4G antennas can be ensured by the above antenna arrangement when both the second and third frequency bands include the WIFI 2.4G frequency band.

[0029] For example, if the operating frequency band of the first radiating segment 11 covers both the L1 band and the WIFI 2.4G band (the first band is the L1 band + the WIFI 2.4G band), not only will the link loss be relatively large, leading to a decrease in GPS performance, but in order to improve the isolation between the two WIFI MIMO (Multiple Input Multiple Output) antennas, the length of the grounding segment between the two WIFI 2.4G antennas needs to be increased (that is, the length of the first grounding segment 12, and in this case, the length of the first grounding segment 12 may be greater than 12mm), causing the first grounding segment 12 to occupy a large space, and the isolation under this scheme is -14dB.

[0030] However, in this disclosure, the first frequency band is the first GPS frequency band, and the third frequency band includes the WIFI 2.4G frequency band. Compared to the distance between the first radiating segment 11 and the second radiating segment 13, the distance between the second radiator 2 and the second radiating segment 13 is greater, which can increase the isolation of the two WIFI 2.4G antennas to a maximum of -25dB, improve the isolation of the two WIFI 2.4G antennas, and improve the antenna performance by 78%. At the same time, it also shortens the size of the first grounding segment 12. In the embodiment provided in this disclosure, the first grounding segment has a first side and a second side that are respectively connected to the first radiator and the second radiator. The distance between the first side and the second side (the size of the first grounding segment 12 in the first direction) is 1mm-4mm. The shortening of the size of the first grounding segment 12 can save stacking space in a limited environment and provide space for the design of other antennas.

[0031] It should be noted that the first frequency band can be the first GPS frequency band. In this disclosure, the aforementioned first GPS frequency band can be the L1 frequency band or the L5 frequency band, where both the L1 and L5 frequency bands are civilian GPS frequency bands. In electronic devices, the first radiating segment 11 is typically used to receive signals emitted on the L1 frequency band, therefore the first frequency band is usually the L1 frequency band. However, to meet the requirements of actual antenna layout, the first radiating segment 11 can also be used to receive signals emitted on the L5 frequency band, that is, in this case, the first frequency band is the L5 frequency band, and this disclosure does not impose specific limitations on this. In the embodiments provided in this disclosure, the first frequency band is the L1 frequency band. Furthermore, the first radiating segment 11 can be used as an independent GPS antenna, which allows the GPS antenna corresponding to the first radiating segment to be designed independently, without being combined with antennas of other frequency bands, thus eliminating the need for a combiner, thereby reducing link loss at the RF front end, and thus improving the GPS antenna performance of the antenna assembly of this disclosure.

[0032] Among them, refer to the appendix Figure 1 As shown, the first radiating segment 11 includes a first portion 111 extending along a first direction and a second portion 112 extending along a second direction, the first direction and the second direction being perpendicular to each other. One end of the first portion 111 and one end of the second portion 112 are connected to each other, so that the first radiating segment 11 is constructed as an L-shaped structure. Furthermore, the second radiating segment 13 can extend along the first direction, and the first grounding segment 12 is connected on both sides of the first direction to the ends of the first portion 111 away from the second portion 112 and the ends of the second radiating segment 13, respectively. The first radiating segment 11, the first grounding segment 12 and the second radiating segment 13 can be integrally formed. When the antenna assembly of this disclosure is used in an electronic device, the first radiator 1 can be part of the metal frame of the electronic device.

[0033] To facilitate the connection between the first radiating segment 11 and the corresponding feed source, in the embodiments provided in this disclosure, refer to the attached... Figure 1 As shown, the first radiating segment 11 is provided with a first feed point 113, which is located in the second part 112 and positioned near the end of the second part 112 away from the first part 111. It is understood that the feed source corresponding to the first radiating segment 11 transmits an excitation signal to the first radiating segment 11 through the first feed point 113, enabling the first radiating segment 11 to radiate radio frequency signals covering the first frequency band. The specific position of the first feed point 113 can be adjusted according to the position of the corresponding feed source. In this disclosure, the first feed point 113 is positioned near the end of the second part 112, which allows for more complete space on the motherboard to install other components, facilitating the overall product design. Of course, in other embodiments, the first feed point 113 can also be located on the first part 111, and the first radiating segment 11 can also be electrically connected to the corresponding feed source via a feed wire or spring; this disclosure does not impose specific limitations in this regard.

[0034] Similarly, the second radiating segment 13 is also provided with a second feed point 131 for connection with the corresponding feed source. It is understood that the feed source corresponding to the second radiating segment 13 transmits an excitation signal to the second radiating segment 13 through the second feed point 131, so that the second radiating segment 13 can radiate radio frequency signals covering the second frequency band. The specific position of the second feed point 131 can be adjusted according to the position of the corresponding feed source, and this disclosure does not impose any specific restrictions on it.

[0035] In the antenna assembly provided in this disclosure, the second frequency band may include the WIFI 2.4G frequency band and the N77 frequency band (WIFI 2.4G frequency band + N77 frequency band), that is, the WIFI 2.4G antenna and the N77 frequency band antenna share the second radiating segment 13 as the radiating arm.

[0036] Regarding the dimensions of the first radiator 1, in the embodiments provided in this disclosure, please refer to the appendix. Figure 2As shown, the dimension L1 of the first part 111 in the first direction can be 12mm to 17mm, where L1 can be 12mm, 13mm, 14.25mm, 15.5mm, 16mm, 17mm, etc. The dimension L2 of the second part 112 in the second direction can be 9mm to 14mm, where L2 can be 9mm, 10mm, 11mm, 11.2mm, 12mm, 13mm, 14mm, etc. The dimension L3 of the second radiating section 13 in the first direction can be 12mm to 17mm, where L3 can be 12mm, 13mm, 13.85mm, 14mm, 15mm, 15.1mm, 16mm, 17mm, etc. The distance L4 between the second feed point 131 and the end of the second radiating section 13 away from the first grounding section 12 in the first direction can be 2mm to 5mm, where L4 can be 2mm, 3mm, 3.9mm, 4mm, 5mm, etc. The dimension L5 of the first grounding segment 12 in the first direction can be 1mm-4mm, where L5 can be 1mm, 2mm, 2.5mm, 3mm, 4mm, etc.

[0037] Regarding the second radiator 2, in the embodiments provided in this disclosure, please refer to the appendix. Figure 1 As shown, the second radiator 2 is spaced apart from the first radiator 1 and includes a third radiating segment 21, a fourth radiating segment 22, and a second grounding segment 23. The second grounding segment 23 connects the third radiating segment 21 and the fourth radiating segment 22. The end and the far end of the fourth radiating segment 22 are positioned opposite each other. The third radiating segment 21 covers at least a third frequency band, and the fourth radiating segment 22 covers at least a fourth frequency band. Both the third radiating segment 21 and the fourth radiating segment 22 extend along a second direction. The second grounding segment 23 connects one end of the third radiating segment 21 and one end of the fourth radiating segment 22 on both sides of the second direction, respectively. The fourth radiating segment 22 is positioned close to the second portion 112, such that the end of the fourth radiating segment 22 away from the second grounding segment 23 is opposite to and spaced apart from the end (far end) of the second portion 112. When the antenna assembly provided in this disclosure is used in an electronic device, the second radiator 2 may be part of the metal frame of the electronic device.

[0038] In the embodiments provided in this disclosure, the third frequency band includes the WIFI 2.4G frequency band to increase the distance between the two WIFI 2.4G antennas and improve isolation. Furthermore, in some embodiments, the fourth frequency band may also include the WIFI 2.4G frequency band; this disclosure does not impose specific limitations on this.

[0039] Furthermore, this disclosure can also implement an NFC (Near Field Communication) frame design. In the embodiments provided in this disclosure, refer to the attached... Figure 1As shown, the third frequency band may include a preset frequency band and an NFC frequency band. The preset frequency band includes overlapping frequency bands. Furthermore, the third radiating segment 21 is provided with a third feed point 211 and a fourth feed point 212. The third feed point 211 corresponds to the preset frequency band, and the fourth feed point 212 corresponds to the NFC frequency band. The preset frequency band may include a WIFI 2.4G frequency band and a second GPS frequency band. The second GPS frequency band may be an L1 frequency band or an L5 frequency band. In the embodiments provided in this disclosure, since the first GPS frequency band is an L1 frequency band, the second GPS frequency band may be an L5 frequency band.

[0040] The positions of the third feed point 211 and the fourth feed point 212 can be designed according to the positions of the corresponding feed sources. However, in order to facilitate the connection of the fourth feed point 212 with the NFC coil, in the embodiments provided in this disclosure, refer to the attached... Figure 1 As shown, the fourth feed point 212 is located at the end of the third radiation segment 21 away from the second ground segment 23, and the third feed point 211 is located between the second ground segment 23 and the fourth feed point 212 in the second direction.

[0041] In the design where the GPS antenna and the 2.4G Wi-Fi antenna are combined, the operating frequency band of the first radiating segment 11 (e.g., L1 band + 2.4G Wi-Fi band) utilizes the 1 / 4 mode of the IFA antenna feed to the antenna end to radiate 2.4G Wi-Fi. In this disclosure, the 2.4G Wi-Fi band + L5 band utilizes the LOOP mode to generate 2.4G Wi-Fi. Even with different antenna modes, the performance difference of 2.4G Wi-Fi in the two stacked designs is not significant. In summary, although the two different stacking schemes use different modes for 2.4G Wi-Fi, the solution disclosed in this disclosure greatly improves isolation while maintaining a similar performance.

[0042] Furthermore, in the embodiments provided in this disclosure, reference is made to the appendix. Figure 1 As shown, the fourth frequency band may include the WIFI 5G band and the N77 band (WIFI 5G band + N77 band). The fourth radiating segment 22 is provided with a fifth feed point 221, which is shared by the WIFI 5G band and the N77 band. That is, the feed source corresponding to the fourth radiating segment 22 transmits an excitation signal to the fourth radiating segment 22 through the fifth feed point 221, enabling the fourth radiating segment 22 to radiate radio frequency signals covering the fourth frequency band. The specific position of the fourth feed point 212 can be adjusted according to the position of the corresponding feed source.

[0043] Regarding the dimensions of the second radiator 2, in the embodiments provided in this disclosure, please refer to the appendix. Figure 2As shown, the dimension L6 of the third radiating segment 21 in the second direction can be 21mm-26mm, where L6 can be 21mm, 22mm, 23mm, 23.85mm, 24mm, 25mm, 26mm, etc. The distance L7 between the third feed point 211 and the fourth feed point 212 in the second direction can be 10mm-15mm, where L7 can be 10mm, 11mm, 12mm, 12.5mm, 13mm, 14mm, 15mm, etc. The dimension L8 of the fourth radiating segment 22 in the second direction can be 4mm-9mm, where L8 can be 4mm, 5mm, 6mm, 6.3mm, 7mm, 8mm, 9mm, etc. The distance L9 between the fifth feed point 221 and the end of the fourth radiating segment 22 furthest from the second grounding segment 23 in the second direction can be 1mm-6mm, where L9 can be 1mm, 2mm, 3mm, 3.1mm, 4mm, 5mm, 6mm, etc.

[0044] In order to isolate the second radiator 2 from other antennas, in the embodiments provided in this disclosure, reference is made to the appendix. Figure 1 As shown, the antenna assembly also includes a first grounding body 3, which is located on the side of the second radiator 2 away from the first radiator 1 in the second direction, and the first grounding body 3 is spaced apart from the second radiator 2. The size of the first grounding body 3 in the second direction can be 1mm-5mm, and further, the size of the first grounding body 3 in the second direction can be 1mm, 2mm, 3mm, 4mm, 5mm, etc.

[0045] Based on the above solutions, this disclosure also provides an electronic device, which includes the antenna assembly described above. Therefore, the electronic device provided by this disclosure also has the above features, and will not be repeated here to avoid repetition.

[0046] The first radiator 1, the second radiator 2, and the first grounding body 3 can all be part of the metal frame of the electronic device. The electronic device has mutually perpendicular length and width directions; the first direction can be the length direction of the electronic device, and the second direction can be the width direction of the electronic device. Furthermore, the electronic device also has a top and a side. The first part 111, the first grounding section 12, and the second radiating section 13 are located on the side of the electronic device, while the second part 112, the second radiator 2, and the first grounding body 3 are located on the top of the electronic device.

[0047] The specific implementation principle of this disclosure is as follows: the operating frequency band of the first radiating segment 11 covers the first GPS frequency band, allowing the first GPS antenna to be designed independently without being combined with antennas of other frequency bands. This eliminates the need for a combiner, reducing link loss at the RF front-end of the first GPS antenna and thus improving its performance and product competitiveness. Furthermore, this design increases the distance between the two WIFI 2.4G antennas to improve isolation and saves the length of the first grounding segment 12, conserving stacking space in limited environments and providing space for the design of other antennas.

[0048] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. 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.

[0049] 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 a first radiator and a second radiator. The first radiator includes a first radiating segment, a first grounding segment, and a second radiating segment. The first grounding segment connects the first radiating segment and the second radiating segment. The operating frequency band of the first radiating segment covers a first frequency band, and the operating frequency band of the second radiating segment at least covers a second frequency band. The first radiating segment has a distal end that is away from the second radiating segment. The end of the second radiator is opposite to and spaced apart from the distal end, and the operating frequency band of the second radiator at least covers a third frequency band. The second frequency band and the third frequency band have an overlapping frequency band, which is between 2.400 GHz and 2.4835 GHz. The first grounding segment has a first side and a second side that are respectively connected to the first radiating segment and the second radiating segment. The distance between the first side and the second side is 1 mm to 4 mm.

2. The antenna assembly according to claim 1, characterized in that, The first frequency band is the first GPS frequency band.

3. The antenna assembly according to claim 1, characterized in that, The second radiator includes a third radiating segment, a fourth radiating segment, and a second grounding segment. The second grounding segment connects the third radiating segment and the fourth radiating segment. The end of the fourth radiating segment is positioned opposite to the distal end. The third radiation segment covers at least the third frequency band, and the fourth radiation segment covers at least the fourth frequency band.

4. The antenna assembly according to claim 3, characterized in that, The third frequency band includes a preset frequency band and an NFC frequency band, and the preset frequency band includes the overlapping frequency band. The third radiation segment is provided with a third feed point and a fourth feed point. The third feed point corresponds to the preset frequency band, and the fourth feed point corresponds to the NFC frequency band.

5. The antenna assembly according to claim 4, characterized in that, The preset frequency bands include the WIFI 2.4G frequency band and the second GPS frequency band.

6. The antenna assembly according to claim 5, characterized in that, The first frequency band is the L1 band, and the second GPS frequency band is the L5 band.

7. The antenna assembly according to claim 6, characterized in that, The fourth feed point is located at the end of the third radiating segment away from the second grounding segment, and the third feed point is located between the second grounding segment and the fourth feed point.

8. The antenna assembly according to claim 5, characterized in that, The fourth frequency band includes the WIFI 5G frequency band and the N77 frequency band. The fourth radiation segment is provided with a fifth feed point, which is shared by the WIFI 5G frequency band and the N77 frequency band.

9. The antenna assembly according to any one of claims 1-8, characterized in that, The antenna assembly further includes a first grounding electrode, which is located in a second direction on the side of the second radiator away from the first radiator, and the first grounding electrode is spaced apart from the second radiator.

10. An electronic device, characterized in that, The electronic device includes the antenna assembly according to any one of claims 1-9.

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