Antenna device and electronic equipment

Abstract

The embodiments of the present application disclose an antenna device and an electronic device, wherein the antenna device includes: a radiator, wherein one end of the radiator is a first suspended end, and the other end is a second suspended end, a feeding point is arranged between the first suspended end and the second suspended end, a first radiating branch is formed between the feeding point and the first suspended end, and a second radiating branch is formed between the feeding point and the second suspended end; a first tuning circuit connected to the first radiating branch, the first tuning circuit is used to adjust the main resonant frequency band of the first radiating branch to the first frequency band, and adjust the auxiliary resonant frequency band of the second radiating branch to the first frequency band; a second tuning circuit connected to the second radiating branch, the second tuning circuit is used to adjust the main resonant frequency band of the second radiating branch to the second frequency band; wherein the first frequency band is a low frequency band supporting cellular communication, and the second frequency band is a frequency band supporting positioning services.

Description

Technical Field

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

[0002] Currently, the GPS L5 antenna in conventional electronic devices is deployed near the power button. Figure 1 As shown, the GPS L5 antenna is in the form of a conventional inverted F-type antenna, and a return point 1 and a feeding point 2 are provided on the GPS L5 antenna.

[0003] However, since the GPS L5 antenna is usually deployed near the power button of an electronic device, the flexible circuit board of the power button needs to pass through the clear area of ​​the GPS L5 antenna, which is easy to generate clutter, affecting the performance of the GPS L5 antenna. The efficiency is generally low, resulting in a small contribution to high-precision navigation in complex areas. In addition, in order to meet the low-frequency + low-frequency antenna combination, a low-frequency antenna is deployed at the location where the GPS L5 antenna is deployed, and the GPS L5 antenna is cancelled, which means that the GPS L5 positioning function cannot be provided. Summary of the invention

[0004] The embodiments of the present application provide an antenna device and an electronic device, which, through the flexible setting of the radiator, can not only support the resonance of the low-frequency band of cellular communication and the frequency band of positioning services, realize the coverage of multiple frequency bands of the antenna, but also improve the antenna positioning performance.

[0005] The technical solution of the embodiment of the present application is implemented as follows:

[0006] An embodiment of the present application provides an antenna device, including:

[0007] A radiator, wherein one end of the radiator is a first suspended end, and the other end is a second suspended end, a feeding point is provided between the first suspended end and the second suspended end, a first radiation branch is formed between the feeding point and the first suspended end, and a second radiation branch is formed between the feeding point and the second suspended end;

[0008] a first tuning circuit connected to the first radiation branch, the first tuning circuit being used to adjust a main resonant frequency band of the first radiation branch to a first frequency band, and to adjust an auxiliary resonant frequency band of a second radiation branch to the first frequency band;

[0009] a second tuning circuit connected to the second radiation branch, the second tuning circuit being used to adjust a main resonant frequency band of the second radiation branch to a second frequency band;

[0010] The first frequency band is a low frequency band supporting cellular communication, and the second frequency band is a frequency band supporting positioning services.

[0011] In the above antenna device, a first connection point is provided on the first radiation branch, and the first tuning circuit is connected to the first connection point;

[0012] The distance between the first connection point and the first suspended end is smaller than the distance between the first connection point and the feeding point.

[0013] In the above antenna device, a second connection point is provided on the second radiation branch, and the second tuning circuit is connected to the second connection point;

[0014] The distance between the second connection point and the second suspended end is smaller than the distance between the second connection point and the feeding point.

[0015] In the above antenna device, the first tuning circuit and the second tuning circuit are parallel inductance selection circuits or frequency selection circuits.

[0016] In the above-mentioned antenna device, the main resonance of the first radiating branch is generated by the IFA antenna formed by the feeding point, the first radiating branch and the first tuning circuit, and the first tuning circuit is also used to adjust the parallel inductance value on the radiation aperture of the first radiating branch to adjust the range covered by the first frequency band.

[0017] In the above-mentioned antenna device, the first frequency band includes at least one of an LTE low frequency band and an NR low frequency band.

[0018] In the above antenna device, the second frequency band includes at least one of a GPS L5 frequency band and a GPS L1 frequency band.

[0019] An embodiment of the present application provides an electronic device, wherein the electronic device includes the above-mentioned antenna device.

[0020] In the above electronic device, it also includes: a circuit board;

[0021] The first tuning circuit and the second tuning circuit included in the antenna device are disposed on the circuit board;

[0022] The antenna device includes a feeding point on a radiator connected to the circuit board.

[0023] The electronic device further comprises a metal frame, and the first radiation branch and the second radiation branch comprised by the antenna device are respectively formed on two sides connected to the metal frame.

[0024] The embodiment of the present application provides an antenna device and an electronic device, the antenna device comprising: a radiator, one end of the radiator is a first suspended end, the other end is a second suspended end, a feeding point is arranged between the first suspended end and the second suspended end, a first radiating branch is formed between the feeding point and the first suspended end, and a second radiating branch is formed between the feeding point and the second suspended end; a first tuning circuit connected to the first radiating branch, the first tuning circuit is used to adjust the main resonant frequency band of the first radiating branch to the first frequency band, and adjust the auxiliary resonant frequency band of the second radiating branch to the first frequency band; a second tuning circuit connected to the second radiating branch, the second radial tuning circuit is used to adjust the main resonant frequency band of the second radiating branch to the second frequency band; wherein the first frequency band is a low frequency band supporting cellular communication, and the second frequency band is a frequency band supporting positioning services. The antenna device provided in the embodiment of the present application, through the flexible setting of the radiator, can not only support the resonance of the low frequency band of cellular communication and the frequency band of positioning services, realize the coverage of multiple frequency bands of the antenna, but also improve the positioning performance of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of an antenna device provided by the prior art;

[0026] Figure 2 A schematic diagram of the structure of an antenna device provided in an embodiment of the present application;

[0027] Figure 3 An exemplary antenna efficiency diagram provided for an embodiment of the present application;

[0028] Figure 4 An exemplary antenna pattern provided for an embodiment of the present application;

[0029] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The following embodiments are used to illustrate the present application, but are not intended to limit the scope of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0031] In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0032] It should be pointed out that the terms "first\second\third" involved in the embodiments of the present application are merely to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged in the preset order or sequence where permitted, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0033] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of those skilled in the art in the field to which the embodiments of the present application belong. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0034] An embodiment of the present application provides an antenna device. Figure 2 This is a schematic diagram of the structure of an antenna device provided in an embodiment of the present application. Figure 2 As shown, in an embodiment of the present application, the antenna device 1 includes:

[0035] A radiator 11, one end of the radiator 11 is a first suspended end 111, and the other end is a second suspended end 112, a feeding point 113 is provided between the first suspended end 111 and the second suspended end 112, a first radiation branch 114 is formed between the feeding point 113 and the first suspended end 111, and a second radiation branch 115 is formed between the feeding point 113 and the second suspended end 112;

[0036] A first tuning circuit 12 connected to the first radiation branch 114, the first tuning circuit 12 is used to adjust the main resonance frequency band of the first radiation branch 114 to the first frequency band, and adjust the auxiliary resonance frequency band of the second radiation branch 115 to the first frequency band;

[0037] A second tuning circuit 13 connected to the second radiation branch 115, the second tuning circuit 13 is used to adjust the main resonance frequency band of the second radiation branch 115 to the second frequency band;

[0038] Among them, the first frequency band is a low-frequency band supporting cellular communication, and the second frequency band is a frequency band supporting positioning services.

[0039] It should be noted that, in the embodiments of the present application, Figure 1As shown, both ends of the radiator 11 are suspended ends, and a feeding point 113 is provided between the suspended ends, dividing the radiator 11 into two radiating branches, and a section from each suspended end to the feeding point 113 is a radiating branch, so that a first radiating branch 114 and a second radiating branch 115 can be obtained.

[0040] It should be noted that, in the embodiment of the present application, the antenna device 1 includes two tuning circuits, namely, a first tuning circuit 12 and a second tuning circuit 13. The first tuning circuit 12 is used to adjust the main resonant frequency band of the connected first radiating branch 114 to the first frequency band, that is, the first radiating branch 114 can generate resonance in the first frequency band under the action of the first tuning circuit 12. In addition, the first tuning circuit 12 also adjusts the auxiliary resonant frequency band of the second radiating branch 115 to the first frequency band. The second tuning circuit 13 can be used to adjust the main resonant frequency band of the connected second radiating branch 115 to the second frequency band, that is, the second radiating branch 115 can generate resonance in the second frequency band under the action of the second tuning circuit 13.

[0041] It should be noted that in the embodiment of the present application, the first frequency band is a low frequency band supporting cellular communication. Specifically, the first frequency band may include at least one of the LTE low frequency band and the NR low frequency band. The first frequency band may be set according to actual needs and application scenarios, and the embodiment of the present application is not limited thereto.

[0042] It should be noted that in the embodiment of the present application, the second frequency band is a frequency band that supports positioning services. Specifically, the second frequency band may include at least one of the GPS L5 frequency band and the GPS L1 frequency band. Of course, the second frequency band may also be other frequency bands that support positioning services. The specific second frequency band can be determined according to actual needs and application scenarios, and the embodiment of the present application does not limit it.

[0043] Specifically, in the embodiments of the present application, Figure 2 As shown, a first connection point 01 is provided on the first radiation branch 114 , and the first tuning circuit 12 is connected to the first connection point 01 ; the distance between the first connection point 01 and the first suspended end 111 is smaller than the distance between the first connection point 01 and the feeding point 113 .

[0044] It should be noted that, in the embodiments of the present application, Figure 2 As shown, a first connection point 01 is provided on the first radiation branch 114 , and the first tuning circuit 12 is actually connected to the first radiation branch 114 by connecting to the first connection point 01 , and the first connection point 01 is close to the first suspended end 111 , that is, close to the end of the first radiation branch 114 .

[0045] Specifically, in the embodiment of the present application, a second connection point 02 is provided on the second radiation branch 115, and the second tuning circuit 13 is connected to the second connection point 02; the distance between the second connection point 02 and the second suspended end 112 is smaller than the distance between the second connection point 02 and the feeding point 113.

[0046] It should be noted that, in the embodiments of the present application, Figure 2 As shown, a second connection point 02 is provided on the second radiation branch 115 , and the second tuning circuit 13 is actually connected to the second radiation branch 115 by connecting to the second connection point 02 , and the second connection point 02 is close to the second suspended end 112 , that is, close to the end of the second radiation branch 115 .

[0047] It should be noted that, in the embodiment of the present application, the positions of the first connection point 01 and the second connection point 02 can be selected according to actual hardware conditions, and the embodiment of the present application is not limited thereto.

[0048] It should be noted that in the embodiment of the present application, the first tuning circuit 12 and the second tuning circuit 13 are parallel inductance selection circuits or frequency selection circuits. The specific first tuning circuit 12 and the second tuning circuit 13 can be set according to actual needs and application scenarios, and the embodiment of the present application does not limit this.

[0049] It should be noted that, in the embodiment of the present application, both the first tuning circuit 12 and the second tuning circuit 13 are provided with a grounding point to achieve the ground return of the radiation branch.

[0050] It should be noted that in an embodiment of the present application, the main resonance of the first radiating branch 114 is generated by the IFA antenna formed by the feeding point, the first radiating branch 114 and the first tuning circuit 12. The first tuning circuit 12 is also used to adjust the parallel inductance value on the radiation aperture of the first radiating branch 114 to adjust the coverage range of the first frequency band.

[0051] It is understandable that in the embodiments of the present application, Figure 2As shown, the main radiation of the antenna device 1 in the first frequency band is generated by the IFA antenna formed by the feeding point 113 through the first radiation branch 114 below. The first tuning circuit 12 can be a parallel inductance selection circuit, which is composed of an inductor and an antenna switch. The switch is connected to the first connection point 01. In this way, by switching the antenna switch state, the value of the parallel inductance on the aperture is changed to achieve mutual switching between different frequencies in the first frequency band. In addition, the second radiation branch 115 has an improvement effect on the radiation performance of the first frequency band. At the same time, the feeding point 113 passes through the second radiation branch 115 to the end and also generates a new resonance at a higher frequency. By setting a frequency selection circuit near the end of the second radiation branch 115, that is, the second tuning circuit 13, the resonance generated by the second radiation branch 115 can be adjusted to the second frequency band.

[0052] It can be understood that in the embodiment of the present application, the resonance of two frequency bands is achieved through the two radiating branches of a radiator 11, so that the antenna device 1 not only supports cellular communication services, but also supports positioning services. In this way, the antenna device 1 is deployed in an electronic device, which can effectively reduce the number of antennas while ensuring the antenna requirements, and the antenna performance is higher.

[0053] Figure 3 This is an exemplary antenna efficiency diagram provided in an embodiment of the present application. Figure 3 As shown, in the embodiment of the present application, the first frequency band is a low frequency band, the second frequency band is a GPS L5 frequency band, the solid line 1 and the dotted line 1 are respectively the radiation efficiency curve and the total efficiency curve of the GPS L5 frequency band when the low frequency band is the N28 frequency band, and the solid line 2 and the dotted line 2 are respectively the radiation efficiency curve and the total efficiency curve of the GPS L5 frequency band when the low frequency band is the B5 frequency band. The efficiency of the antenna device 1 in the GPS L5 frequency band can be significantly improved, and its peak efficiency can reach about -4dB. In addition, with the change of the operating frequency of the low frequency part, the passive efficiency on GPSL5 can still maintain a high level (about -6dB), which is significantly higher than the conventional solution.

[0054] Figure 4 An exemplary antenna pattern is provided in the embodiment of the present application. Figure 4 As shown, for the antenna device 1 proposed in the present application, in the far-field solution at GPS L5, the upper hemisphere of GPS L5 accounts for about 46%, so that its upper hemisphere efficiency is maintained at a high level, meeting the needs of GPS precise navigation in complex environments.

[0055] In addition, for machines with the same structure for domestic and foreign sales, the conventional GPS L5 solution is often used as the third low-frequency antenna in the export solution, which results in the export models basically having no GPS L5 function. After adopting this technical solution, by using the shared low-frequency radiator 11 to generate the resonance of GPS L5, it can achieve the function of GPS L5 positioning for machines with the same structure for domestic and foreign sales, thereby improving the competitiveness of the whole machine.

[0056] It is understandable that for some electronic devices, the conventional GPS L5 solution is often used as a low-frequency antenna, which causes the electronic device to have no GPS L5 positioning function. Based on the antenna device 1 proposed in this application, the electronic device can share a radiator 11, such as a low-frequency radiator 11, to generate resonance in the GPS L5 frequency band, thereby providing the GPS L5 positioning function.

[0057] The embodiment of the present application provides an antenna device, including: a radiator, one end of the radiator is a first suspended end, the other end is a second suspended end, a feeding point is arranged between the first suspended end and the second suspended end, a first radiating branch is formed between the feeding point and the first suspended end, and a second radiating branch is formed between the feeding point and the second suspended end; a first tuning circuit connected to the first radiating branch, the first tuning circuit is used to adjust the main resonant frequency band of the first radiating branch to the first frequency band, and adjust the auxiliary resonant frequency band of the second radiating branch to the first frequency band; a second tuning circuit connected to the second radiating branch, the second tuning circuit is used to adjust the main resonant frequency band of the second radiating branch to the second frequency band; wherein the first frequency band is a low frequency band supporting cellular communication, and the second frequency band is a frequency band supporting positioning services. The antenna device provided in the embodiment of the present application, through the flexible setting of the radiator, can not only support the resonance of the low frequency band of cellular communication and the frequency band of positioning services, realize the coverage of multiple frequency bands of the antenna, but also improve the positioning performance of the antenna.

[0058] An embodiment of the present application provides an electronic device. Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 5 As shown, in an embodiment of the present application, the electronic device 2 includes the above-mentioned antenna device 1.

[0059] It should be noted that, in the embodiment of the present application, the electronic device 2 may be a terminal such as a smart phone or a tablet computer, in which the antenna device 1 is disposed. The specific electronic device 2 is not limited in the embodiment of the present application.

[0060] Specifically, in the embodiments of the present application, Figure 5 As shown, the electronic device 2 further includes: a circuit board 21;

[0061] The antenna device 1 includes a first tuning circuit 12 and a second tuning circuit 13 disposed on a circuit board 21;

[0062] The antenna device 1 includes a feeding point 113 on the radiator 11 , which is connected to the circuit board 21 .

[0063] Specifically, in the embodiment of the present application, the electronic device 2 further includes a metal frame, and the first radiation branch 114 and the second radiation branch 115 are respectively formed on two edges connected to the metal frame.

[0064] It should be noted that, in the embodiments of the present application, Figure 5 As shown, the shape of the radiator 11 in the antenna device 1 can be L-shaped, which can be formed at the corners of two sides connected by the metal frame of the electronic device 2. Of course, the antenna device 1 can also be deployed at other positions of the electronic device 2 according to actual needs and hardware layout. In addition, the shape of the radiator 11 can be not only Figure 5 The L-shape shown may also be a straight line or other shapes, and accordingly, the deployment of the antenna device 1 may be designed according to the shape of the radiator 11. The specific shape of the radiator 11 and the position of the antenna device 1 are not limited in the embodiment of the present application.

[0065] It should be noted that, in the embodiment of the present application, the electronic device 2 may include not only the circuit board 21 and the above-mentioned antenna device 1, but also a rear camera 22, a near field communication module 23, and a battery 24. The specific layout is as follows: Figure 5 Of course, the electronic device 2 may also include other hardware such as a screen to provide corresponding functions, which is not limited in the embodiment of the present application.

[0066] It can be understood that in the embodiments of the present application, due to the flexible setting of the radiator 11 in the antenna device 1, it can not only support the resonance of the low-frequency band of cellular communication and the frequency band of positioning services, realize the coverage of multiple frequency bands of the antenna, but also improve the antenna positioning performance. Therefore, the electronic device 2 including the above-mentioned antenna device 1 can reduce the space occupied by deploying a separate positioning antenna, and provide a higher-precision navigation and positioning function.

[0067] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An antenna device, characterized in that: include: A radiator, wherein one end of the radiator is a first suspended end, and the other end is a second suspended end, a feeding point is provided between the first suspended end and the second suspended end, a first radiation branch is formed between the feeding point and the first suspended end, and a second radiation branch is formed between the feeding point and the second suspended end; the shape of the radiator is L-shaped, and the radiator is formed at the corners of two sides connected to the metal frame of the electronic device; a first tuning circuit connected to the first radiation branch, the first tuning circuit being used to adjust a main resonant frequency band of the first radiation branch to a first frequency band, and to adjust an auxiliary resonant frequency band of the second radiation branch to the first frequency band; a second tuning circuit connected to the second radiation branch, the second tuning circuit being used to adjust a main resonant frequency band of the second radiation branch to a second frequency band; Among them, the first frequency band is a low-frequency band supporting cellular communication, and the first frequency band includes at least one of the LTE low-frequency band and the NR low-frequency band; the second frequency band is a frequency band supporting positioning services; the second frequency band includes at least one of the GPS L5 band and the GPS L1 band.

2. The antenna device according to claim 1, characterized in that A first connection point is provided on the first radiation branch, and the first tuning circuit is connected to the first connection point; The distance between the first connection point and the first suspended end is smaller than the distance between the first connection point and the feeding point.

3. The antenna device according to claim 1, characterized in that: A second connection point is provided on the second radiation branch, and the second tuning circuit is connected to the second connection point; The distance between the second connection point and the second suspended end is smaller than the distance between the second connection point and the feeding point.

4. The antenna device according to any one of claims 1 to 3, characterized in that: The first tuning circuit and the second tuning circuit are parallel inductance selection circuits or frequency selection circuits.

5. The antenna device according to any one of claims 1 to 3, characterized in that: The main resonance of the first radiating branch is generated by the IFA antenna formed by the feeding point, the first radiating branch and the first tuning circuit. The first tuning circuit is also used to adjust the parallel inductance value on the radiation aperture of the first radiating branch to adjust the range covered by the first frequency band.

6. An electronic device, characterized in that: The electronic device comprises the antenna device according to any one of claims 1 to 5.

7. The electronic device according to claim 6, characterized in that: The electronic device further comprises: a circuit board; The first tuning circuit and the second tuning circuit included in the antenna device are disposed on the circuit board; The antenna device includes a feeding point on a radiator connected to the circuit board.

8. The electronic device according to claim 6, characterized in that: The electronic device further comprises a metal frame, and the first radiation branch and the second radiation branch comprised by the antenna device are respectively formed on two sides connected to the metal frame.

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