Antenna devices and electronic equipment

Abstract

This application discloses an antenna device and an electronic device. The antenna device includes: a substrate; an antenna body disposed on the substrate and capable of operating in a first frequency band; and N directors disposed on the substrate, arranged sequentially at intervals on a first side of the antenna body. One end of each director is grounded. The difference between 1 / 4 wavelength of the first frequency band and the length of each director is greater than 0 and less than a first specific value, where N is a positive integer and the first specific value is a positive number. By grounding one end of each director, the length of each director is reduced, thereby helping to reduce the overall size of the antenna device and the space required for installation.

Description

Technical Field

[0001] This application belongs to the field of antenna technology, specifically relating to an antenna device and electronic equipment. Background Technology

[0002] As is well known, antenna devices are widely used in various electronic devices. In some applications, electronic devices may require antenna devices to have directional radiation capabilities, and directional antennas can effectively meet this requirement. However, existing directional antennas are often large in size, occupying a significant amount of installation space, which in turn increases the design complexity of electronic devices. Summary of the Invention

[0003] This application aims to provide an antenna device and electronic device to solve the problem that existing directional antennas are often large in size and occupy a large installation space.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] In a first aspect, embodiments of this application provide an antenna device, comprising:

[0006] substrate;

[0007] The antenna body is mounted on the substrate and is capable of operating in the first frequency band.

[0008] N directors are disposed on the substrate and arranged sequentially at intervals on the first side of the antenna body. One end of each director is grounded. The difference between 1 / 4 wavelength of the first frequency band and the length of each director is greater than 0 and less than a first specific value. N is a positive integer and the first specific value is a positive number.

[0009] Secondly, embodiments of this application provide an electronic device, including a device body and an antenna device as shown in the first aspect;

[0010] The main body of the device includes a camera decorative component, which is reused as a substrate for the antenna device.

[0011] The antenna device provided in this application includes a substrate, an antenna body, and N directors. The antenna body and the N directors are both mounted on the substrate, and the N directors are arranged sequentially at intervals on a first side of the antenna body. The antenna body is capable of operating in a first frequency band. One end of each director is grounded. The difference between 1 / 4 wavelength of the first frequency band and the length of each director is greater than 0 and less than a first specific value, where N is a positive integer and the first specific value is a positive number. By grounding one end of each director, this application reduces the length of each director, thereby helping to reduce the overall size of the antenna device and the space required for installation.

[0012] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0014] Figure 1 This is a schematic diagram of the antenna device provided in an embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the structure after the substrate, antenna body, and director are assembled.

[0016] Figure 3 This is a schematic diagram of another structure after the substrate, antenna body and director are assembled;

[0017] Figure 4 This is another structural schematic diagram of the antenna device provided in the embodiments of this application;

[0018] Figure 5 This is another structural schematic diagram of the antenna device provided in the embodiments of this application;

[0019] Figure 6 This is another structural schematic diagram of the antenna device provided in the embodiments of this application;

[0020] Figure 7 This is another structural schematic diagram of the antenna device provided in the embodiments of this application;

[0021] Figure 8 This is another structural schematic diagram of the antenna device provided in the embodiments of this application;

[0022] Figure 9 This is another structural schematic diagram of the antenna device provided in the embodiments of this application;

[0023] Figure 10 This is a rendering of the antenna device provided in the embodiments of this application when applied to an electronic device;

[0024] Figure 11 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application.

[0025] The figure shows: substrate 110, opening 111, antenna body 120, impedance matching circuit 121, feed 122, director 130, radiating branch 140, reflector 150, device body 200, and camera decoration 210. Detailed Implementation

[0026] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] like Figure 1 As shown, the antenna device provided in this application embodiment includes:

[0031] substrate 110;

[0032] Antenna body 120 is disposed on substrate 110 and is capable of operating in the first frequency band;

[0033] N directors 130 are disposed on the substrate 110 and are arranged sequentially at intervals on the first side of the antenna body 120. One end of each director 130 is grounded. The difference between 1 / 4 wavelength of the first frequency band and the length of each director 130 is greater than 0 and less than a first specific value. N is a positive integer and the first specific value is a positive number.

[0034] In this embodiment, the substrate 110 can be used for attaching the antenna body 120 and the director 130. Generally, the substrate 110 can be a non-conductive structure, or the substrate 110 can be provided with an insulating material to further connect with the antenna body 120 and the director 130.

[0035] In some examples, the substrate 110 in the antenna device may be used solely for attaching the antenna body 120 and the director 130. In other examples, the substrate 110 may be reused for other functions. For instance, the antenna device may be used in a mobile terminal, and the substrate 110 may be reused as a decorative element.

[0036] The antenna body 120 may include elements, etc. Generally, the elements of the antenna body 120 may be active elements. The specific form of the antenna body 120 is not limited here. The antenna body 120 may be embedded in the substrate 110, or it may be attached to the surface of the substrate 110, etc.

[0037] The antenna body 120 can operate in the first frequency band. For example, if the antenna device provided in this embodiment is a Global Positioning System (GPS) antenna, the antenna body 120 can operate in the L1 frequency band (1575.42±1.023MHz) or the L2 frequency band (1227.6±10.23MHz), etc. Of course, similarly, when the antenna device is a BeiDou antenna, the antenna body 120 can also operate in the corresponding frequency band, which will not be described in detail here.

[0038] The form of the director 130 can be similar to that of the antenna body 120. For example, the director 130 can also include an oscillator. In addition, the director 130 can be similar to the antenna body 120 in terms of materials and connection method with the substrate 110, which will not be elaborated here.

[0039] The number of directors 130 can be one or more. When there is only one director 130, it can be located on one side of the antenna body 120, with a certain distance between it and the antenna body 120. When there are multiple directors 130, they can all be located on the same side of the antenna body 120, with a certain distance between adjacent directors 130, and between the antenna body 120 and adjacent directors 130.

[0040] It is easy to understand that when there is an alternating current in the antenna body 120, a corresponding current can be coupled into the adjacent director 130. For example... Figure 1 As shown, the alternating current present in the antenna body 120 can cause the coupling current I1 generated on the adjacent director 130. Similarly, coupling currents I2, I3, I4, etc. can be generated sequentially on the other directors 130 arranged in sequence.

[0041] By reasonably selecting the length of the antenna body 120, the length of the director 130, or the distance between the two, the phase of the coupling current on the director 130 can be made to lag behind the phase of the current on the antenna body 120.

[0042] The electromagnetic waves generated on the antenna body 120 will propagate to the location of the director 130. The phase of the electromagnetic waves at the director 130 can be considered to be ahead of the phase of the electromagnetic waves at the antenna body 120.

[0043] When the phase lag caused by the coupling current is the same as the phase advance caused by the propagation of electromagnetic waves, the two can cancel each other out. The phase of the electromagnetic wave generated by the antenna body 120 is the same as the phase of the electromagnetic wave generated by the director 130. Therefore, the director 130 can strengthen the field of the antenna body 120 toward the director 130, thereby obtaining the effect of directional radiation.

[0044] Similarly, when there are multiple directors 130, the working principle between two adjacent directors 130 is actually very similar to the working principle between the antenna body 120 and its adjacent director 130 mentioned above, and will not be elaborated here.

[0045] In this embodiment, one end of each director 130 is grounded, and the difference between 1 / 4 wavelength of the first frequency band and the length of each director 130 is greater than 0 and less than a first specific value, which is a positive number. In other words, the length of each director 130 may be slightly less than 1 / 4 wavelength of the first frequency band.

[0046] Generally, a frequency band can have a corresponding intermediate frequency, which can have a relatively definite frequency. For example, in the GPS L1 band mentioned above, the intermediate frequency could be 1575.42MHz. Correspondingly, one-quarter of the wavelength of the first frequency band can be considered as the wavelength of the intermediate frequency of the first frequency band.

[0047] Of course, in some possible implementations, the wavelengths of other frequencies in the first frequency band, excluding the middle frequency, can also be selected as the wavelengths of the first frequency band.

[0048] For simplicity, the wavelength of the first frequency band can be denoted as λ1. In typical applications, director 130 is not grounded, and there is coupling current at both ends of director 130. Director 130 is equivalent to a dipole. The current in the middle of director 130 is 0, and there is coupling current at the left and right ends. The lengths of the two ends in the middle of director 130 are designed to be slightly less than λ1 / 4, and the total length of director 130 is designed to be slightly less than λ1 / 2.

[0049] However, since the antenna device includes an antenna body 120 and at least one director 130, and a certain distance is required between the antenna body 120 and the director 130, as well as between two adjacent directors 130, a longer director 130 will result in a larger overall size of the antenna device and a larger area occupied. When the antenna device is used in electronic devices, it will squeeze the installation space of other components, making it difficult to achieve a thinner and lighter electronic device.

[0050] In this embodiment, since one end of the director 130 is grounded and the current at the end is 0, the coupling current appears at the other end of the director 130. That is, the director 130 can actually be considered as a monopole. In this case, the length of the ungrounded end of the director 130 can be set to be slightly less than λ1 / 4, while the length of the grounded end is not required. The total length of the director 130 can be designed to be slightly less than λ1 / 4.

[0051] It can be seen that by grounding one end of each director 130, the length of the director 130 can be effectively reduced.

[0052] The antenna device provided in this application includes a substrate 110, an antenna body 120, and N directors 130. The antenna body 120 and the N directors 130 are both disposed on the substrate 110, and the N directors 130 are arranged sequentially at intervals on the first side of the antenna body 120. The antenna body 120 is capable of operating in a first frequency band. One end of each director 130 is grounded. The difference between 1 / 4 wavelength of the first frequency band and the length of each director 130 is greater than 0 and less than a first specific value, where N is a positive integer and the first specific value is a positive number. By grounding one end of each director 130, this application reduces the length of each director 130, thereby helping to reduce the overall size of the antenna device and the space required for installation.

[0053] Optionally, the antenna device further includes an impedance matching circuit 121;

[0054] The first end of the antenna body 120 is grounded, the second end of the antenna body 120 is connected to the first end of the impedance matching circuit 121, the second end of the impedance matching circuit 121 is connected to the first end of the feed 122 of the antenna device, and the second end of the feed 122 is grounded.

[0055] like Figure 1 As shown, the first end of the antenna body 120 is grounded, and the second end can be connected to the impedance matching circuit 121 and the feed 122 in sequence and then grounded.

[0056] The second end of the antenna body 120 is connected to the feed 122, making the antenna body 120 an active element, and its second end can actively generate electromagnetic wave radiation.

[0057] Similar to the director 130 mentioned above, since the first end of the antenna body 120 is grounded, its length can be designed to be λ1 / 4 or close to λ1 / 4, which can effectively reduce the length of the antenna body 120 and help to further reduce the size of the antenna device.

[0058] The purpose of the impedance matching circuit 121 is to ensure that the equivalent impedance of the antenna body 120 after being connected to the impedance matching circuit 121 is matched with the input impedance of the feed 122, thereby improving the radiation efficiency of the antenna body 120.

[0059] In some embodiments, the antenna body 120 and the N directors 130 are all embedded in the substrate 110.

[0060] To a certain extent, both the antenna body 120 and the director 130 can be considered as vibrators. Therefore, for the sake of simplicity, the antenna body 120 and the N directors 130 can all be referred to as vibrators.

[0061] like Figure 2As shown, in one embodiment, the antenna body 120 and N directors 130, etc., can be embedded in the substrate 110. The substrate 110 can be made of an insulating material such as plastic, while the antenna body 120 can be made of a conductive material such as metal.

[0062] At this point, the individual elements in the antenna device can be mutually insulated, and the alternating current on one element can cause a coupled current on another element, which in turn generates electromagnetic wave radiation.

[0063] like Figure 3 As shown, in some embodiments, the antenna body 120 and the N directors 130, etc., may be attached to the surface of the substrate 110. Specifically, the aforementioned oscillators may be processed on the substrate 110 by methods such as print direct forming (PDS) or laser direct forming (LDS). Alternatively, the oscillators may be flexible printed circuit boards (FPCs) and fixedly connected to the substrate 110.

[0064] Similarly, the substrate 110 can also be an insulating material, and coupling currents can be generated on each oscillator, further generating electromagnetic wave radiation.

[0065] In some embodiments, the shape of the substrate 110 described above can be rectangular, circular, or triangular, etc., and no specific limitation is made here.

[0066] Furthermore, as shown above, the substrate 110 can be reused for other functions. Accordingly, the substrate 110 can be provided with structures to accommodate the implementation of these functions, such as openings 111 or protrusions, etc., without specific limitations here.

[0067] For example, such as Figure 4 As shown, the substrate 110 can be rectangular and can be reused as a camera decoration 210 in electronic devices. Accordingly, an opening 111 for the camera to pass through can be provided on the substrate 110.

[0068] For example, such as Figure 5 As shown, the substrate 110 can be circular, and an opening 111 can also be provided on the substrate 110.

[0069] For example, such as Figure 6As shown, the substrate 110 can be triangular, and an opening 111 is provided on the substrate 110. In addition, the longitudinal direction of the antenna body 120 can be parallel to one side of the substrate 110, and the length of the N directors 130 can decrease as the distance from the antenna body 120 increases. On the one hand, this helps to accommodate the change in the width of the triangular substrate 110, and on the other hand, it helps to ensure that the coupling current on the directors 130 can reliably generate phase hysteresis in the direction away from the antenna body 120.

[0070] Combination Figures 4 to 6 As can be seen, if the antenna body 120 and the N directors 130 are all referred to as vibrators, then when the opening 111 overlaps with the vibrator, the width of the vibrator can be adjusted appropriately to avoid a vibrator being divided into multiple segments by the opening 111, thereby ensuring that the length of each vibrator can meet the requirements of electromagnetic wave radiation.

[0071] Optionally, when the substrate 110 is rectangular, the length direction of the antenna body 120 is consistent with the length direction of the substrate 110, and the antenna body 120 and N directors 130 are arranged sequentially at intervals along the width direction of the substrate 110; or,

[0072] The length direction of the antenna body 120 is consistent with the width direction of the substrate 110, and the antenna body 120 and N directors 130 are arranged sequentially at intervals along the length direction of the substrate 110.

[0073] like Figure 4 and Figure 7 As shown, the substrate 110 can be rectangular in shape, and correspondingly, the substrate 110 can have a long side and a wide side.

[0074] like Figure 4 As shown, in one embodiment, the antenna body 120 and N directors 130, that is, the length direction of each vibrator, can be consistent with the width direction of the substrate 110, and the multiple vibrators can be arranged sequentially at intervals along the length direction of the substrate 110.

[0075] Since the substrate 110 can have a large space in the length direction, a relatively large number of directors 130 can be provided.

[0076] It is easy to understand that the radiation capability of the antenna device in the direction from the antenna body 120 to the director 130 can be positively correlated with the number of directors 130. In other words, the more directors 130 there are, the stronger the radiation capability of the antenna device in a specific direction. Therefore, this embodiment can accommodate a large number of directors 130, thereby enabling the antenna device to have better directional radiation capability.

[0077] like Figure 7As shown, in another embodiment, the length direction of each oscillator can be consistent with the length direction of the substrate 110, and multiple oscillators can be arranged sequentially at intervals along the width direction of the substrate 110.

[0078] In this embodiment, the space along the length of the substrate 110 can accommodate the installation of a longer oscillator, thereby accommodating the installation of the antenna body 120 and related directors 130 operating in a lower frequency band, and improving the applicability of the antenna device.

[0079] In some application scenarios, when the mounting orientation of the substrate 110 is fixed, the radiation direction of the antenna device can be changed by altering the length extension direction and the sequential arrangement direction of each vibrator, thus meeting the application requirements of different scenarios.

[0080] Of course, in practical applications, as the number of directors 130 increases, the gain in directional radiation capability brought by the directors 130 usually decreases. Therefore, the number of directors 130 is generally not increased indefinitely. When the length and width directions of the substrate 110 meet the installation requirements of the preset number of directors 130, the arrangement direction of each oscillator on the substrate 110 can be selected as needed.

[0081] Optionally, the distance between the antenna body 120 and the adjacent director 130 is less than half the wavelength of the first frequency band;

[0082] When N is greater than 1, the distance between two adjacent directors 130 is less than 1 / 2 wavelength of the first frequency band.

[0083] In this embodiment, by limiting the maximum distance between adjacent elements, the size of the entire antenna device can be effectively limited. Furthermore, the smaller the distance between elements, the greater the coupling current. Limiting the maximum distance between adjacent elements, while meeting phase requirements, can effectively improve directional radiation capability.

[0084] In practical applications, the specific distance between each element can be adjusted according to the actual directional radiation capability of the antenna device, which will be explained in detail here.

[0085] Optionally, such as Figure 8 As shown, the antenna device also includes a radiating stub 140, which is electrically connected to the antenna body 120. The radiating stub 140 operates in a second frequency band, which is different from the first frequency band.

[0086] In this embodiment, by electrically connecting the radiating stub 140 to the antenna body 120, the operating frequency band of the antenna device can be expanded, and the applicability of the antenna device can be improved.

[0087] For example, the antenna body 120 and the director 130 work together to achieve the function of directing the antenna, such as enabling the antenna device to operate in the L1 band of GPS.

[0088] The radiating stub 140 can be configured to enable the antenna device to acquire the functions of a regular antenna, such as enabling the antenna device to operate in the 5G or 4G frequency bands.

[0089] Alternatively, the radiating stub 140 can be configured to enable the antenna device to operate in multiple frequency bands. For example, it could enable the antenna device to operate in both the L1 and L2 frequency bands as a GPS antenna.

[0090] If the wavelength of the first frequency band λ1 is greater than the wavelength of the second frequency band λ2, then when the antenna device is a directional antenna capable of operating in multiple frequency bands, the length of each director 130 can be slightly less than λ1 / 4; or, it can be further slightly less than λ2 / 4 (that is, the difference between 1 / 4 wavelength of the second frequency band and the length of each director 130 is greater than 0 and less than a preset positive number); or, it can be slightly less than (λ1 / 4+λ2 / 4) / 2.

[0091] In other words, the reference wavelength used to select the length of the director 130 can be determined based on the operating frequency band of the antenna device. For example, when the antenna device primarily operates in the L1 band, the length of the director 130 can be determined based on 1 / 4 wavelength of the L1 band; when the antenna device primarily operates in the L2 band, the length of the director 130 can be determined based on 1 / 4 wavelength of the L2 band; when the antenna device primarily operates in both the L1 and L2 bands, the length of the director 130 can be determined based on the average of 1 / 4 wavelength of the L1 band and 1 / 4 wavelength of the L2 band. This allows the antenna device to reliably operate in the desired frequency band.

[0092] In practical applications, the number of radiating stubs 140 can be one or more. When there are multiple radiating stubs 140, different radiating stubs 140 can also achieve different antenna functions.

[0093] Optionally, such as Figure 9 As shown, the antenna device also includes a reflector 150, which is disposed on the substrate 110 and located on the second side of the antenna body 120, opposite to the first side.

[0094] In this embodiment, the form of reflector 150 can be similar to that of antenna body 120 and director 130. For example, the material of reflector 150, the arrangement direction of reflector 150, and the fact that reflector 150 can essentially be considered as a vibrator can all be the same as or similar to those of antenna body 120 and director 130. Examples will not be given here.

[0095] Based on the above description of the working principle of the director 130, the phase lag of the current coupled on the director 130 can cancel each other out with the phase advance caused by the electromagnetic wave emitted by the antenna body 120 propagating to the director 130, thereby strengthening the field in the direction from the antenna body 120 to the director 130 and realizing directional radiation.

[0096] The working principle of reflector 150 is quite similar to that of director 130.

[0097] Specifically, in this embodiment, N directors 130 are located on a first side of the antenna body 120, while the reflector 150 is located on a second side of the antenna body 120 opposite to the first side. In other words, the propagation direction from the antenna body 120 to the directors 130 (denoted as the first direction) is opposite to the propagation direction from the antenna body 120 to the reflector 150 (denoted as the second direction). To improve the directional radiation capability of the antenna device, it is necessary to suppress the propagation field in the second direction while improving the propagation field in the first direction.

[0098] In practical applications, by reasonably designing the length of the reflector 150 or the distance between the reflector 150 and the antenna body 120, the phase of the current coupled on the director 130 can be made to lead the phase of the current on the antenna body 120.

[0099] The phase of the electromagnetic wave generated by the antenna body 120 at the reflector 150 is also ahead of the phase at the antenna body 120.

[0100] The phase lead caused by the coupling current and the phase lead caused by the propagation of electromagnetic waves can be superimposed. When the phase lead generated by the superposition of the two is π, the phase of the electromagnetic wave generated by the antenna body 120 is opposite to the phase of the electromagnetic wave generated by the reflector 150. The two cancel each other out, which is equivalent to suppressing the propagation of the electromagnetic wave generated by the antenna body 120 in the second direction. From another perspective, the reflector 150 can be considered to have the function of reflecting the electromagnetic wave emitted by the antenna body 120, thereby improving the directional radiation capability of the antenna device in the first direction.

[0101] Optionally, if one end of the reflector 150 is grounded, the difference between the length of the reflector 150 and 1 / 4 wavelength of the first frequency band is greater than 0 and less than a second specific value, where the second specific value is a positive number.

[0102] In this embodiment, the difference between the length of the reflector 150 and 1 / 4 wavelength of the first frequency band is greater than 0 and less than a second specific value. In other words, the length of the reflector 150 can be slightly greater than λ1 / 4.

[0103] As shown above, both director 130 and reflector 150 can be considered as oscillators. Similar to the principle of grounding director 130 described above, when one end of reflector 150 is grounded, coupling current appears at the other end of reflector 150, meaning reflector 150 can actually be considered a monopole. In this case, the length of the ungrounded end of reflector 150 can be set to be slightly greater than λ1 / 4, while the length of the grounded end is not required. The total length of reflector 150 can be designed to be slightly greater than λ1 / 4.

[0104] It is evident that by grounding one end of the reflector 150, the length of the reflector 150 can be effectively reduced. This helps to improve the directional radiation capability of the antenna device while avoiding excessive increase in the overall size of the antenna device due to the reflector 150.

[0105] Of course, in some application scenarios, if there is enough assembly space at the end where the reflector 150 is located, the reflector 150 can be set to be ungrounded, and the length of the reflector 150 can be slightly greater than λ1 / 2.

[0106] like Figure 10 As shown, Figure 10 This is a diagram illustrating the effect of applying the antenna device provided in this application to an electronic device. The electronic device can be a mobile terminal, tablet computer, laptop computer, base station equipment, or wearable device, etc., and is not specifically limited here.

[0107] In the diagram, MA0 can be considered the antenna ground of the electronic device, such as a circuit board or a large metal casing. The antenna body 120 and the director 130 in the antenna device can be electrically connected to the antenna ground of the electronic device to further achieve grounding.

[0108] Figure 10 In the diagram, the antenna body 120 corresponds to the rightmost vibrator connected to the feed 122, and each director 130 can be located on the left side of the antenna body 120. FP0 is a schematic diagram of the radiation direction of the antenna device without directors 130, and FP1 is a schematic diagram of the radiation direction of the antenna device with directors 130.

[0109] As can be seen, the antenna device provided in this embodiment, through the arrangement of the director 130, can pull the radiation direction of the antenna device towards the location of the director 130, thereby giving the antenna device better directional radiation capability. When the antenna device is used as a GPS antenna, it can have better upper hemisphere radiation efficiency.

[0110] like Figure 11 As shown, this application embodiment also provides an electronic device, including a device body 200 and the antenna device 100 described above;

[0111] The main body of the device 200 includes a camera decorative component 210, which is reused as the substrate of the antenna device 100.

[0112] It is easy to understand that the implementation of the antenna device embodiment described above is also applicable to the embodiment of the electronic device and can achieve the same technical effect, which will not be elaborated here.

[0113] Furthermore, in this embodiment, the camera decorative piece 210 included in the main body 200 is reused as the substrate of the antenna device 100. In fact, it can be considered as providing a separate space for the antenna device 100, avoiding problems such as poor isolation, abnormal bandwidth changes, and reduced radiation efficiency caused by sharing space with other antennas around the electronic device.

[0114] Optionally, such as Figures 4 to 9 As shown, the camera decorative piece 210 has an opening 111 for the camera to pass through;

[0115] The antenna body 120 and the N directors 130 all avoid the opening 111.

[0116] In this embodiment, the camera decorative piece 210 may be provided with an opening 111 for the camera to pass through. In order to avoid the antenna device 100 from interfering with the installation and light sensing of the camera, the antenna body 120 and the director 130 and other vibrators can avoid these openings 111.

[0117] Of course, when avoiding the opening 111, each element also needs to avoid being segmented into multiple segments by the opening 111, which would result in insufficient length to meet the radiation requirements. Furthermore, the spacing between the elements affects the directional radiation effect of the antenna device 100. Therefore, in practical applications, the width of each element can be reasonably designed so that while avoiding being segmented by the opening 111, each element has a suitable spacing with each other.

[0118] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0119] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An antenna device, characterized in that, include: substrate; An antenna body is disposed on the substrate and is capable of operating in a first frequency band; N directors are disposed on the substrate and arranged sequentially at intervals on the first side of the antenna body. One end of each director is grounded. The difference between 1 / 4 wavelength of the first frequency band and the length of each director is greater than 0 and less than a first specific value. N is a positive integer greater than 1 and the first specific value is a positive number. The distance between the antenna body and the adjacent director is less than half the wavelength of the first frequency band; and the distance between two adjacent directors is less than half the wavelength of the first frequency band.

2. The antenna device according to claim 1, characterized in that, The antenna device further includes a radiating stub, which is electrically connected to the antenna body. The radiating stub operates in a second frequency band, which is different from the first frequency band.

3. The antenna device according to claim 1, characterized in that, The antenna device further includes a reflector disposed on the substrate and located on a second side of the antenna body, the second side being opposite to the first side.

4. The antenna device according to claim 3, characterized in that, When one end of the reflector is grounded, the difference between the length of the reflector and 1 / 4 wavelength of the first frequency band is greater than 0 and less than a second specific value, where the second specific value is a positive number.

5. The antenna device according to claim 1, characterized in that, When the substrate is rectangular, the length direction of the antenna body is consistent with the length direction of the substrate, and the antenna body and the N directors are arranged sequentially at intervals in the width direction of the substrate; or, The length direction of the antenna body is consistent with the width direction of the substrate, and the antenna body and the N directors are arranged sequentially at intervals along the length direction of the substrate.

6. The antenna device according to claim 1, characterized in that, The antenna device also includes an impedance matching circuit. The first end of the antenna body is grounded, the second end of the antenna body is connected to the first end of the impedance matching circuit, the second end of the impedance matching circuit is connected to the first end of the feed of the antenna device, and the second end of the feed is grounded.

7. The antenna device according to claim 1, characterized in that, The antenna body and the N directors are all embedded in the substrate.

8. An electronic device, characterized in that, Includes the main body of the device and the antenna device as described in any one of claims 1 to 7; The main body of the device includes a camera decorative component, which is reused as the substrate of the antenna device.

9. The electronic device according to claim 8, characterized in that, The camera decorative piece is provided with an opening for the camera to pass through; The antenna body and the N directors all avoid the opening.

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