Antenna assembly and electronic equipment

Abstract

The utility model relates to an antenna assembly and electronic equipment. The antenna assembly comprises an antenna body and a resonance module, the antenna body comprises at most two antenna branches; the resonance module is connected with each antenna branch knot; the resonance module is used for regulating and controlling the equivalent electric size of the antenna body. Therefore, the equivalent electrical size of the antenna body is regulated and controlled by using the resonance module, the resonance frequency can be increased, the number of the antenna branches can be effectively reduced, and the space utilization rate of the antenna body is improved.

Description

Technical Field

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

[0002] With the development of wireless communication technology, users have higher and higher requirements for electronic devices. For example, in the 5G era, smartphones need to cover more frequency bands while being thinner and having a larger screen-to-body ratio, which increases the difficulty of designing the internal antenna of the mobile phone.

[0003] Currently, in existing antenna design solutions, multiple resonant frequencies are usually generated by increasing the number of antenna branches. However, this approach causes the antenna to occupy a larger routing area, resulting in reduced space utilization of the antenna. Utility Model Content

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides an antenna assembly and an electronic device.

[0005] The present disclosure provides an antenna assembly, comprising: an antenna body and a resonance module; the antenna body comprises at most two antenna branches;

[0006] The resonant module is connected to each of the antenna branches;

[0007] The resonance module is used to adjust the equivalent electrical size of the antenna body.

[0008] Optionally, the antenna assembly further includes a feed source;

[0009] The feed source is electrically connected to the starting end or the end of the antenna body;

[0010] The resonance module is spaced apart from the feed source by a preset distance.

[0011] Optionally, the resonance module includes at least one capacitor and / or at least one inductor.

[0012] Optionally, the number of the antenna branches is one;

[0013] The resonance module is connected in parallel with the antenna branch, and the capacitor and / or the inductor in the resonance module are connected in parallel.

[0014] Optionally, the number of the antenna branches is two;

[0015] The resonance module is connected in series between the two antenna branches, and the capacitor and / or the inductor in the resonance module are connected in series.

[0016] Optionally, there are multiple resonance modules.

[0017] Optionally, the antenna body includes a low-frequency antenna.

[0018] Optionally, the antenna body is an L-shaped structure.

[0019] Optionally, the present disclosure further provides an electronic device, comprising a circuit board and any one of the above antenna assemblies;

[0020] The antenna assembly is electrically connected to the circuit board.

[0021] Optionally, the circuit board includes a first side and a second side that are adjacently connected; the length of the first side is smaller than the length of the second side;

[0022] The antenna assembly is disposed on the first side.

[0023] The technical solution provided by the embodiments of the present disclosure has the following advantages over the prior art:

[0024] The antenna assembly provided in the embodiments of the present disclosure includes: an antenna body and a resonant module; the antenna body includes at most two antenna branches; the resonant module is connected to each antenna branch; and the resonant module is used to adjust the equivalent electrical dimensions of the antenna body. Using the resonant module to adjust the equivalent electrical dimensions of the antenna body not only increases the resonant frequency but also effectively reduces the number of antenna branches, thereby improving the space utilization of the antenna body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0026] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 A schematic structural diagram of an antenna assembly provided in an embodiment of the present disclosure;

[0028] Figure 2 A schematic structural diagram of another antenna assembly provided in an embodiment of the present disclosure;

[0029] Figure 3 A schematic structural diagram of another antenna assembly provided in an embodiment of the present disclosure;

[0030] Figure 4 A schematic structural diagram of another antenna assembly provided in an embodiment of the present disclosure;

[0031] Figure 5 A schematic structural diagram of another antenna assembly provided in an embodiment of the present disclosure;

[0032] Figure 6 A schematic structural diagram of an electronic device provided in an embodiment of the present disclosure;

[0033] Figure 7 A schematic diagram of a scattering parameter curve provided in an embodiment of the present disclosure.

[0034] Among them, 01, first side; 02, second side; 110, antenna body; 111, antenna branch; 120, resonant module; 121, capacitor; 122, inductor; 130, feed source; 140, circuit board. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0037] In response to the technical problems described in the background technology, the applicant has found through research that among the existing antenna design schemes, one is to generate multiple resonant frequencies by expanding the number of antenna branches to increase the working bandwidth of the antenna, but this will cause the antenna to occupy a larger routing area, resulting in a decrease in the space utilization of the antenna; the other is to use a switch to switch the capacitor or inductor to change the matching state of the antenna, but the antenna can only generate one resonant frequency at the same time, and increases the overall application cost, reducing the practicality of the antenna.

[0038] To address at least one of the aforementioned issues, embodiments of the present disclosure provide an antenna assembly comprising: an antenna body and a resonant module; the antenna body comprising at most two antenna branches; the resonant module connected to each antenna branch; and the resonant module configured to adjust the equivalent electrical dimensions of the antenna body. By utilizing the resonant module to adjust the equivalent electrical dimensions of the antenna body, not only can the resonant frequency be increased, but the number of antenna branches can also be effectively reduced, thereby improving the space utilization of the antenna body.

[0039] The antenna assembly and electronic device provided by the embodiments of the present disclosure are exemplarily described below with reference to the accompanying drawings.

[0040] Figure 1 This is a schematic diagram of the structure of an antenna assembly provided by an embodiment of the present disclosure. Figure 1 The antenna assembly includes: an antenna body 110 and a resonance module 120; the antenna body 110 includes at most two antenna branches 111; the resonance module 120 is connected to each antenna branch 111; the resonance module 120 is used to adjust the equivalent electrical size of the antenna body 110.

[0041] The antenna body 110 is a radiator. For example, the antenna body 110 includes one antenna branch 111, or two antenna branches 111. By connecting a resonant module 120 to each antenna branch 111, the equivalent electrical dimensions of the antenna branches 111 (equivalent to radiating branches) can be adjusted. Since the antenna's operating frequency is primarily determined by its dimensions, changing the equivalent electrical dimensions of the antenna branches 111 increases the resonant frequency of the antenna body 110, allowing the radiated RF signal to cover multiple resonant frequencies (or operating frequencies).

[0042] It is understood that the equivalent electrical dimensions of antenna body 110 are the electrical dimensions for a predetermined resonant frequency. For example, for resonant frequency f1, the electrical dimensions of antenna body 110 may be its inherent dimensions, while for resonant frequency f2, the electrical dimensions of antenna body 110 may include the inherent dimensions as well as a portion of the equivalent structure of resonant module 120. The specific operating principle of resonant module 120 will be exemplarily described later and will not be elaborated on here.

[0043] The antenna assembly provided in the embodiments of the present disclosure includes: an antenna body 110 and a resonant module 120; the antenna body 110 includes at most two antenna branches 111; the resonant module 120 is connected to each antenna branch 111; and the resonant module 120 is used to adjust the equivalent electrical dimensions of the antenna body 110. Thus, compared to the prior art method of generating multiple resonant frequencies by increasing the number of antenna branches, the embodiments of the present disclosure utilize the resonant module 120 to adjust the equivalent electrical dimensions of the antenna body 110, effectively reducing the number of antenna branches 111 while ensuring an increase in the resonant frequency, thereby improving the space utilization of the antenna body.

[0044] In some embodiments, Figure 2 A schematic structural diagram of another antenna assembly provided in an embodiment of the present disclosure is shown. Figure 3 This is a structural diagram of another antenna assembly provided by an embodiment of the present disclosure, both of which show that the resonant module 120 is connected in parallel with the antenna branch 111. Figure 1 Based on the reference Figure 2 and Figure 3 The antenna assembly further includes a feed source 130 ; the feed source 130 is electrically connected to the starting end or the end of the antenna body 110 ; the resonant module 120 is spaced apart from the feed source 130 by a preset distance.

[0045] Among them, the spacing distance between the resonant module 120 and the feed source 130 affects the frequency difference between the operating frequencies. For example, when the resonant module 120 is connected in parallel with the antenna branch 111, the smaller the spacing distance between the resonant module 120 and the feed source 130, the smaller the frequency difference between the operating frequencies, and vice versa. When the resonant module 120 is connected in series with the antenna branch 111, the larger the spacing distance between the resonant module 120 and the feed source 130, the smaller the frequency difference between the operating frequencies, and vice versa. Such a setting enriches the control methods for the operating frequency generated by the antenna branch 111 and improves its control flexibility.

[0046] Specifically, feed source 130 can transmit RF signals to antenna branch 111. During this process, resonant module 120 can adjust the equivalent electrical dimensions of antenna branch 111, so that the RF signals radiated outward from antenna branch 111 cover multiple operating frequencies. For example, the operating frequencies may include low-frequency bands, GPS bands, and the like, but are not limited here.

[0047] In addition, by arranging the feed source 130 at the starting end or the end of the antenna body 110, the antenna structure is simpler, the antenna design is simplified, and the feed line connected to the feed source is shorter, which reduces the loss during signal transmission.

[0048] In some embodiments, Figure 4 This is a structural diagram of another antenna assembly provided in an embodiment of the present disclosure. Figure 1 Based on the reference Figure 4 , the resonance module includes at least one capacitor 121 and / or at least one inductor 122 .

[0049] For example, Figure 4 The resonant module is shown to include a capacitor 121 and an inductor 122. In this way, the antenna body 110 can have two resonant frequencies through the impedance matching function of the capacitor 121 and the inductor 122. On the basis of ensuring the increase of the resonant frequency, the hardware application cost is reduced as much as possible, and the structure is simple and easy to implement. In other embodiments, the resonant module may also include multiple capacitors 121 and multiple inductors 122. The capacitors 121 and inductors 122 can be freely combined according to the working requirements of the antenna, which is not limited here.

[0050] In some embodiments, continue to refer to Figure 4 , the number of antenna branches 111 is one; the resonant module is connected in parallel with the antenna branch 111, and the capacitor 121 and / or inductor 122 in the resonant module are connected in parallel.

[0051] It should be noted that when the antenna body 110 is not configured with a resonance module, the operating frequency covered by the antenna body 110 can be a low-frequency band. When the antenna body 110 is added with a resonance module, the equivalent electrical size of the antenna body 110 is controlled by utilizing the resonance module, which not only enables it to cover the original operating frequency, i.e., the low-frequency band, but also allows new operating frequencies such as the GPS band to be added.

[0052] In the process of adjusting the equivalent electrical size of the antenna body 110, the resonant module is equivalent to an open circuit for the low-frequency band, and the electrical size of the antenna body 110 is equivalently changed through the effect of capacitor and inductor loading in the GPS band. For example, it is equivalent to a capacitor or inductor for the GPS band, indicating that it has no effect on the low-frequency band, and resonance is generated at the GPS band.

[0053] Specifically, if the number of antenna branch 111, capacitor 121, and inductor 122 is only one, the resonant module is connected in parallel with the antenna branch 111, and the capacitor 121 and inductor 122 in the resonant module are connected in parallel, it can ensure that the antenna branch 111 covers multiple operating frequencies while effectively reducing the impact of the newly added operating frequency (such as the GPS band) on the original operating frequency (such as the low-frequency band), thereby improving the radiation efficiency of the antenna branch 111.

[0054] In some embodiments, Figure 5 This is a structural diagram of another antenna assembly provided in an embodiment of the present disclosure. Figure 1 Based on the reference Figure 5 The number of antenna branches 111 is two; the resonant module 120 is connected in series between the two antenna branches 111, and the capacitor 121 and / or inductor 122 in the resonant module 120 are connected in series.

[0055] For example, the figure shows that the number of antenna branches 111 is two, and the number of capacitors 121 and inductors 122 are both one. On this basis, the resonance module 120 is connected in series between the two antenna branches 111, and the capacitor 121 and the inductor 122 in the resonance module 120 are connected in series. While ensuring that the antenna branch 111 covers multiple operating frequencies, it can effectively reduce the impact of the newly added operating frequency (such as the GPS band) on the original operating frequency (such as the low-frequency band), thereby improving the radiation efficiency of the antenna branch 111.

[0056] Resonance module 120 acts as a short circuit at low frequencies and as a capacitor or inductor at newly added operating frequencies, such as the GPS band. This indicates that it has no effect on low frequencies and resonates at the GPS band. In the disclosed embodiment, whether resonance module 120 acts as a capacitor or inductor depends on the relative magnitude of the original operating frequency and the newly added operating frequency, which can be determined based on the principle of impedance matching and is not detailed here.

[0057] In some embodiments, there are multiple resonance modules.

[0058] Exemplarily, the number of resonant modules can be two, three, four or other numbers, and the more resonant modules there are, the more resonant frequencies of the antenna branch 111 will increase, but the impact between the resonant frequencies will also be greater. The number of resonant modules can be set according to the working requirements of the antenna and is not limited here.

[0059] In some embodiments, the antenna body includes a low frequency antenna.

[0060] Among them, the operating frequency of the low-frequency antenna is within the low-frequency range, and its physical size is larger than that of the medium- and high-frequency antenna. Therefore, within the limited internal space of existing electronic equipment, the design difficulty of the low-frequency antenna is much higher than that of the medium- and high-frequency antenna.

[0061] To this end, the embodiment of the present disclosure, by providing an antenna body including a low-frequency antenna, can utilize a resonance module to regulate its equivalent electrical dimensions, thereby effectively reducing the number of antenna branches on the basis of increasing the resonance frequency, further reducing the design difficulty of the low-frequency antenna, and helping to meet the clearance area requirements of electronic equipment.

[0062] In some embodiments, reference Figure 2 , the antenna body 110 is an L-shaped structure.

[0063] Specifically, Figure 2 Taking the L-shaped structure shown as an example, the antenna body 110 is in an L-shaped layout, has a compact structure, occupies less space, and can be applied to electronic devices with limited internal space, which helps to improve the problem of difficult design of internal antennas in mobile phones.

[0064] On the basis of the above embodiments, an embodiment of the present disclosure further provides an electronic device, including a circuit board and any one of the antenna assemblies provided in the above embodiments, which has corresponding beneficial effects.

[0065] For example, Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present disclosure, referring to Figure 6 , the antenna assembly is electrically connected to the circuit board 140.

[0066] The circuit board 140 is provided with a reference ground and a radio frequency circuit. The reference ground is connected to the resonant module 120 in the antenna assembly. Specifically, the radio frequency circuit is used to generate a radio frequency signal and transmit the radio frequency signal to the antenna body 110 via the feed 130. The resonant module 120 can then process the coverage frequency of the radio frequency signal, for example, by adjusting the equivalent electrical dimensions of the antenna body 110 to increase the frequency range covered by the radio frequency signal.

[0067] For example, electronic devices include but are not limited to mobile phones, tablet computers, and laptop computers.

[0068] In some embodiments, continue to refer to Figure 6 The circuit board 140 includes a first side 01 and a second side 02 that are adjacent to each other; the length of the first side 01 is smaller than the length of the second side 02; and the antenna assembly is disposed on the first side 01.

[0069] The first side 01 is the short side of the circuit board 140, and the second side 02 is the long side of the circuit board 140. Thus, by arranging the antenna assembly on the short side of the circuit board 140, space can be saved and the internal circuit structure of the electronic device can be made more compact.

[0070] In some embodiments, Figure 7 A schematic diagram of a scattering parameter curve provided by an embodiment of the present disclosure. The horizontal axis X1 represents the frequency in gigahertz (GHz); the vertical axis Y1 represents the scattering parameter (S parameter, referred to as S parameter), in decibels (dB); L31 represents the S parameter curve of the antenna body without a resonant module, and L32 represents the S parameter curve of the antenna body with a resonant module. Figure 7 It can be seen that the embodiment of the present disclosure can achieve low-frequency dual resonance using a resonant module with a simple structure, that is, simultaneously cover the low-frequency band and the GPS L5 band, thereby expanding the low-frequency bandwidth.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0072] The foregoing description is intended only to provide specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the embodiments described herein, but rather to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. An antenna assembly, characterized in that: include: An antenna body and a resonant module; the antenna body includes at most two antenna branches; The resonance module is connected to each of the antenna branches; The resonance module is used to adjust the equivalent electrical size of the antenna body.

2. The antenna assembly according to claim 1, wherein: Also includes feeds; The feed source is electrically connected to the starting end or the end of the antenna body; The resonance module is spaced apart from the feed source by a preset distance.

3. The antenna assembly according to claim 1, wherein: The resonance module includes at least one capacitor and / or at least one inductor.

4. The antenna assembly according to claim 3, wherein: The number of the antenna branches is one; The resonance module is connected in parallel with the antenna branch, and the capacitor and / or the inductor in the resonance module are connected in parallel.

5. The antenna assembly according to claim 3, wherein: The number of the antenna branches is two; The resonance module is connected in series between the two antenna branches, and the capacitor and / or the inductor in the resonance module are connected in series.

6. The antenna assembly according to claim 1, wherein: There are multiple resonance modules.

7. The antenna assembly according to claim 1, wherein: The antenna body includes a low-frequency antenna.

8. The antenna assembly according to claim 1, wherein: The antenna body is an L-shaped structure.

9. An electronic device, characterized in that: The electronic device comprises a circuit board and the antenna assembly according to any one of claims 1 to 8; The antenna assembly is electrically connected to the circuit board.

10. The electronic device according to claim 9, wherein: The circuit board comprises a first side and a second side that are adjacent to each other; the length of the first side is smaller than the length of the second side; The antenna assembly is disposed on the first side.

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