Antenna and electronic product

Abstract

The embodiment of the utility model relates to the technical field of communication, and provides an antenna and an electronic product, the antenna comprises a PCB, the PCB is provided with a clearance zone and an antenna structure arranged on the clearance zone, the antenna structure comprises a dielectric substrate, the dielectric substrate is provided with a first surface and a second surface which are opposite to each other; the radiating body is located on the first surface, and a groove penetrating through the thickness of the radiating body is formed in the radiating body; the feeding point is located on the second surface, and the radiator is electrically connected with the feeding point; one end of each of the first conductive via hole and the second conductive via hole is electrically contacted with the radiator, and the other end of each of the first conductive via hole and the second conductive via hole extends and protrudes out of the second surface; a first tuning structure in electrical contact with the other end of the first conductive via hole; and the second tuning structure is electrically contacted with the other end of the second conductive via hole, and the shape of the second tuning structure is different from that of the first tuning structure. The embodiment of the utility model at least can improve the applicability of the antenna.

Description

Technical Field

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

[0002] Antennas are an indispensable part of mobile communication terminal products, and they play a role in transmitting electromagnetic wave energy between different media. With the vigorous development of the wireless communication industry at home and abroad, the industry's demand for innovative antenna design is also increasing day by day. Because the debugging of the antenna not only needs to take into account the size of the printed circuit board assembly (PCBA), but also has high clearance requirements for the antenna environment of the whole machine, and there are many types of antennas, and different types of antennas have different characteristics and scopes of application. Therefore, most communication products on the market need to develop and design the antenna of the product according to the actual situation, which makes the applicability of the antenna low. In other words, the applicability of the antenna needs to be improved. Utility Model Content

[0003] The present application provides an antenna and an electronic product, which can at least improve the applicability of the antenna.

[0004] The present application provides an antenna, comprising: a PCB board, the PCB board having a clearance area, and an antenna structure arranged on the clearance area, the antenna structure comprising: a dielectric substrate, the dielectric substrate having a first surface and a second surface opposite to each other; a radiator, the radiator is located on the first surface, and the radiator has a groove that runs through the thickness of the radiator; a feeding point, the feeding point is located on the second surface, and the radiator is electrically connected to the feeding point; a first conductive via and a second conductive via that are independent of each other, one end of each of the first conductive via and the second conductive via is electrically in contact with the radiator, and the other end of each extends and protrudes outside the second surface; a first tuning structure, the first tuning structure is electrically in contact with the other end of the first conductive via; a second tuning structure, the second tuning structure is electrically in contact with the other end of the second conductive via, and the second tuning structure has a different shape from the first tuning structure.

[0005] Furthermore, the radiator includes: a first radiation unit and a second radiation unit arranged opposite to each other, the first radiation unit and the second radiation unit are located at opposite ends on the first surface; a third radiation unit, the third radiation unit is used to connect the first radiation unit and the second radiation unit; a fourth radiation unit, the fourth radiation unit is connected to an end of the second radiation unit away from the third radiation unit; a first bending portion, the first bending portion is connected to an end of the fourth radiation unit away from the second radiation unit, and a groove is formed between the first radiation unit, the third radiation unit, the second radiation unit, the fourth radiation unit and the first bending portion, and the groove is a G-type groove.

[0006] Furthermore, the antenna includes: a third conductive via, and the third conductive via is used to connect the first radiation unit and the feeding point.

[0007] Furthermore, the first conductive via connects the third radiation unit and the first tuning structure, and the distance between the first conductive via and the first radiation unit is smaller than the distance between the first conductive via and the second radiation unit; the second conductive via connects the fourth radiation unit and the second tuning structure, and the distance between the second conductive via and the first radiation unit is smaller than the distance between the second conductive via and the second radiation unit.

[0008] Furthermore, the first tuning structure includes: a main body, which is electrically connected to the first conductive via, and the projection of the main body on the second surface is a rectangle; a second bending portion, which is connected to the main body; and the second tuning structure is arranged opposite to the main body, and the projection of the second tuning structure on the second surface is a rectangle.

[0009] Furthermore, the antenna structure also includes: a zero-ohm resistor, and the zero-ohm resistor is connected in series to the first tuning structure and / or the second tuning structure.

[0010] Furthermore, the antenna structure includes: a pad, which is located on the second surface and is used to connect the dielectric substrate and the PCB board.

[0011] Furthermore, the antenna structure includes: a ground feeding point, which is connected to the feeding point, and the ground feeding point is located on the clearance area.

[0012] Furthermore, the radiator, the feeding point and the ground feeding point are exposed copper parts of a PCB board.

[0013] On the other hand, the present application also provides an electronic product, including the antenna described in any of the above technical solutions.

[0014] The technical solution provided by this application has at least the following advantages:

[0015] The technical solution of the antenna provided in the present application includes: a PCB board, the PCB board has a clearance area, and an antenna structure arranged on the clearance area. The antenna structure includes: a dielectric substrate, a radiator, a feeding point, and a first conductive via and a second conductive via that are independent of each other. The dielectric substrate has a first surface and a second surface opposite to each other. The radiator is located on the first surface, and the radiator has a groove that penetrates the thickness of the radiator. The feeding point is located on the second surface, and the radiator is electrically connected to the feeding point. One end of each of the first conductive via and the second conductive via is electrically in contact with the radiator, and the other end of each extends and protrudes outside the second surface. The antenna structure also includes: a first tuning structure and a second tuning structure, the first tuning structure is electrically in contact with the other end of the first conductive via, the second tuning structure is electrically in contact with the other end of the second conductive via, and the second tuning structure has a different shape from the first tuning structure. The first tuning structure and the second tuning structure are electrically connected to the radiator through the first conductive via and the second conductive via, respectively, and the working frequency band of the antenna can be adjusted by adjusting the length of the first tuning structure and the second tuning structure, so that the antenna can be applied to most electronic products, which is conducive to improving the applicability of the antenna. In addition, the antenna of the present application has two resonance points and can be compatible with both the GPS L1 band and the GPS L5 band. Compared with the related technology that realizes dual-band, it is necessary to debug two antennas separately and then merge and overlap them. The antenna structure of the present application is simple, which can save costs and debugging time, and can improve the applicability of the antenna. In addition, the PCB board form used in the antenna of the present application can save manufacturing costs compared to the ceramic form, and the antenna efficiency is also higher, and the coverage bandwidth is also wider, which is also conducive to improving the applicability of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings, and these exemplified descriptions do not constitute a limitation on the embodiments. Unless otherwise specified, the pictures in the drawings do not constitute a scale limitation. In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the traditional technology, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a perspective structure of an antenna provided in an embodiment of the present disclosure;

[0018] Figure 2 A partial perspective structural diagram of an antenna provided in an embodiment of the present disclosure;

[0019] Figure 3 A schematic diagram of a top view structure of a radiator provided in an embodiment of the present disclosure;

[0020] Figure 4 A schematic diagram of a partial top view of the structure of the antenna provided in an embodiment of the present disclosure;

[0021] Figure 5 A simulated standing wave diagram of the antenna provided in an embodiment of the present disclosure;

[0022] Figure 6 A measured standing wave diagram of the antenna provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] As can be seen from the background technology, there are many types of antennas, and different types of antennas have different characteristics and applicable scopes, so most communication products on the market need to develop and design antennas according to actual conditions, which makes the applicability of antennas in related technologies low. Therefore, the technical problem to be solved by this application is: how to improve the applicability of antennas.

[0024] The disclosed embodiment provides an antenna, comprising: a PCB board, the PCB board having a clearance area, and an antenna structure arranged on the clearance area. The antenna structure comprises: a dielectric substrate, a radiator, a feeding point, and a first conductive via and a second conductive via that are independent of each other. One end of each of the first conductive via and the second conductive via is electrically in contact with the radiator, and the other end of each extends and protrudes outside the second surface. The antenna structure also comprises: a first tuning structure and a second tuning structure, the first tuning structure is electrically in contact with the other end of the first conductive via, the second tuning structure is electrically in contact with the other end of the second conductive via, and the second tuning structure has a different shape from the first tuning structure. The first tuning structure and the second tuning structure are electrically connected to the radiator through the first conductive via and the second conductive via, respectively, and the working frequency band of the antenna can be adjusted by adjusting the length of the first tuning structure and the second tuning structure, so that the antenna can be applied to most electronic products, which is conducive to improving the applicability of the antenna. In addition, the antenna implemented in the present disclosure has two resonance points, which can be compatible with GPS (Global Positioning System) L1 band and GPS L5 band at the same time. Compared with the related technology that realizes dual-band, it is necessary to debug two antennas separately and then merge and overlap them. The antenna structure of the embodiment of the present disclosure is simple, which can save costs and debugging time, and can improve the applicability of the antenna. In addition, the PCB board form used in the antenna of the embodiment of the present disclosure can save manufacturing costs compared with the ceramic form, and the antenna efficiency is also higher, and the coverage bandwidth is also wider, which can also improve the applicability of the antenna.

[0025] The following will describe the various embodiments of the present disclosure in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present disclosure, many technical details are provided in order to enable the reader to better understand the present disclosure. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present disclosure can be implemented.

[0026] Figure 1 A perspective structural diagram of an antenna provided in an embodiment of the present disclosure is shown. Figure 2 A partial perspective structural diagram of an antenna provided in an embodiment of the present disclosure is shown. Figure 3 A schematic diagram of a top view of the radiator provided in an embodiment of the present disclosure.

[0027] refer to Figure 1 and Figure 2 The antenna includes: a PCB board 100, the PCB board 100 has a clearance area 110, and an antenna structure 200 disposed on the clearance area 110. The antenna structure 200 includes: a dielectric substrate 201, a radiator 202, a feeding point 203, and a first conductive via 204 and a second conductive via 205 that are independent of each other. The dielectric substrate 201 has a first surface 211 and a second surface that are opposite to each other. The radiator 202 is located on the first surface 211, and the radiator 202 has a groove 212 (refer to Figure 3 ). The feed point 203 is located on the second surface, and the radiator 202 is electrically connected to the feed point 203. One end of each of the first conductive via 204 and the second conductive via 205 is electrically in contact with the radiator 202, and the other end of each extends out of the second surface. The antenna structure 200 also includes: a first tuning structure 206 and a second tuning structure 207, the first tuning structure 206 is electrically in contact with the other end of the first conductive via 204; the second tuning structure 207 is electrically in contact with the other end of the second conductive via 205, and the second tuning structure 207 has a different shape from the first tuning structure 206.

[0028] PCB (Printed Circuit Board) board, PCB board 100 is the bottom substrate of antenna structure 200, and can provide a fixing foundation for dielectric substrate 201. The disclosed embodiment adopts the antenna design in the form of PCB board, and the antenna structure 200 can be directly printed on PCB board 100, which is low-cost, has good aesthetics, does not require maintenance, and has very good stability.

[0029] The PCB board 100 can be made of a board with a suitable dielectric constant to adapt to the working conditions of the antenna.

[0030] The clearance area 110 is a prohibited area on the PCB board 100 , and there is no copper coating or routing in the clearance area 110 .

[0031] The antenna structure 200 plays a role in propagating electromagnetic wave energy between different media.

[0032] The antenna structure 200 is arranged on the clearance area 110. Specifically, the orthographic projection of the antenna structure 200 on the second surface is located within the orthographic projection of the clearance area 110 on the second surface, which can prevent the radiation performance of the antenna structure 200 from being affected by the mutual coupling between the radiator 202 and other metals.

[0033] The dielectric substrate 201 is a substrate for carrying the radiation part of the antenna. A corresponding radiation structure can be arranged on the dielectric substrate 201 to realize the radiation and reception of the antenna. The dielectric substrate 201 can also use the PCB board 100, and the copper-plated part on the surface of the PCB board 100 is used to form a radiation patch, that is, a radiator 202. In this way, it is easy to realize the production of the radiation part. In actual situations, it is also possible to separately arrange a radiation patch or a radiation branch on the surface of the dielectric substrate 201. Among them, the branch can be arranged into multiple branches to respectively realize high-frequency radiation and low-frequency radiation.

[0034] The size of the dielectric substrate 201 may be 17 mm*6.2 mm*3.2 mm. The size of the dielectric substrate 201 is relatively small, and a general PCB board 100 can be placed thereon, so that the antenna has high applicability.

[0035] The dielectric substrate 201 has a first surface 211 and a second surface (not labeled) opposite to each other. The first surface 211 is a surface of the dielectric substrate 201 away from the PCB 100 , and the second surface is a surface connecting the dielectric substrate 201 and the PCB 100 .

[0036] Also refer to Figure 1 and Figure 3 In some embodiments, the radiator 202 includes: a first radiating unit 222 and a second radiating unit 232 arranged opposite to each other, the first radiating unit 222 and the second radiating unit 232 are located at opposite ends on the first surface 211; a third radiating unit 242, the third radiating unit 242 is used to connect the first radiating unit 222 and the second radiating unit 232; a fourth radiating unit 252, the fourth radiating unit 252 is connected to an end of the second radiating unit 232 away from the third radiating unit 242; a first bending portion 262, the first bending portion 262 is connected to an end of the fourth radiating unit 252 away from the second radiating unit 232, and a groove 212 is formed between the first radiating unit 222, the third radiating unit 242, the second radiating unit 232, the fourth radiating unit 252 and the first bending portion 262, and the groove 212 is a G-shaped groove. In this way, the formed G-shaped groove can ensure that the antenna structure 200 can achieve dual-frequency resonance.

[0037] The groove 212 can be formed by cutting a groove on the radiator 202. In practice, in order to obtain the desired multi-band antenna, the radiator 202 is usually grooved, and the grooves can increase the current path on the radiator 202, thereby exciting dual-frequency and multi-frequency resonance. The groove 212 formed by the grooves can also be in other shapes, such as a long strip, a U shape, or a T shape.

[0038] The feeding point 203 is electrically connected to the radiator 202 and is used to transmit a signal to the radiator 202 .

[0039] The first conductive via 204 is used to electrically connect the radiator 202 and the first tuning structure 206 .

[0040] The second conductive via 205 is used to electrically connect the radiator 202 and the second tuning structure 207 .

[0041] The first tuning structure 206 is electrically connected to the radiator 202 and can serve as a new radiating structure in the antenna structure 200 . It can change the resonance point of the radiator 202 itself and cause it to shift, thereby achieving a wider working bandwidth of the antenna.

[0042] The first tuning structure 206 is electrically connected to the radiator 202 so that the antenna can receive or radiate electromagnetic waves in a first working frequency band, and the first working frequency band ranges from 1520MHz to 1620MHz, such as 1520MHz, 1540MHz, 1560MHz, 1561MHz, 1575MHz, 1580MHz, 1600MHz, 1602MHz, 1610MHz or 1620MHz, etc. The first working frequency band covers a wider frequency band and can completely cover the GPS L1 frequency band, so that the antenna has higher applicability.

[0043] The first tuning structure 206 may be a patch or an extended branch, and the shape and size of the patch or the extended branch may be adjusted according to actual tuning requirements.

[0044] In some examples, the length of the first tuning structure 206 may range from 12 mm to 18 mm, such as 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, or 18 mm.

[0045] By adjusting the length of the first tuning structure 206, the resonance point of the first working frequency band can be adjusted. Simulation results show that lengthening the first tuning structure 206 can move the resonance point to a low frequency, while shortening the length of the first tuning structure 206 can move the resonance point to a high frequency.

[0046] In a specific example, the antenna is originally suitable for the GPS positioning system, that is, its resonance point is at 1575 MHz. If the product wants to increase market demand and export to Russia, the length of the first tuning structure 206 can be shortened to allow the resonance point to be appropriately shifted to the right to 1602 MHz. This frequency point just corresponds to the center frequency point of GLONASS (GLOBAL NAVIGATIONSATELLITE SYSTEM), and the product demand can be met at this time.

[0047] The second tuning structure 207 is electrically connected to the radiator 202 and can serve as a new radiating structure in the antenna structure 200 . It can change the resonance point of the radiator 202 itself and shift it, thereby achieving a wider working bandwidth of the antenna.

[0048] The second tuning structure 207 is electrically connected to the radiator 202 so that the antenna can receive or radiate electromagnetic waves in a second working frequency band, and the second working frequency band ranges from 1150 MHz to 1200 MHz, such as 1150 MHz, 1160 MHz, 1170 MHz, 1180 MHz, 1190 MHz, or 1200 MHz. The second working frequency band covers a wider frequency band and can completely cover the GPS L5 frequency band, so that the antenna has higher applicability.

[0049] The second tuning structure 207 may also be a patch or an extended branch, and the shape and size of the patch or the extended branch may be adjusted according to actual tuning requirements.

[0050] In some examples, the length of the second tuning structure 207 may range from 2 mm to 8 mm, such as 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, or 8 mm.

[0051] By adjusting the length of the second tuning structure 207, the resonance point of the second working frequency band can be adjusted. Simulation results show that lengthening the length of the second tuning structure 207 can move the resonance point to a low frequency, while shortening the length of the second tuning structure 207 can move the resonance point to a high frequency.

[0052] It should be noted that the GPS L1 frequency band has high signal strength and good penetration ability. The navigation signal of the GPS L1 frequency band is suitable for a wide range of applications, including aviation, navigation, vehicle navigation, and consumer electronics products such as smart phones. The GPS L5 frequency band has a higher bandwidth and lower multipath effect, and can provide more accurate and reliable positioning information. The application of the GPS L5 frequency band is mainly concentrated in the field of high-precision positioning, such as aerospace, geological exploration, and precision agriculture. Due to the introduction of the GPS L5 frequency band, the performance of the global satellite navigation system has been significantly improved, providing users with a better positioning and navigation experience. The first working frequency band and the second working frequency band of the antenna of the embodiment of the present disclosure can completely cover the GPS L1 frequency band and the GPS L5 frequency band, and the antenna has a high applicability.

[0053] It is understandable that the environments in which antennas of different products are located are different, and different structural component shells will also have a certain impact on the resonance point of the antenna. The antenna of the embodiment of the present disclosure can adjust the length of the first tuning structure 206 and the second tuning structure 207 to meet the needs of different products, thereby increasing the universality and applicability of the antenna.

[0054] Figure 4 A schematic diagram of a partial top view of the structure of the antenna provided in an embodiment of the present disclosure.

[0055] Also refer to Figure 2 and Figure 4 In some embodiments, the first tuning structure 206 may include: a main body 216, the main body 216 is electrically connected to the first conductive via 204, and the projection of the main body 216 on the second surface is a rectangle; a second bending portion 226, the second bending portion 226 is connected to the main body 216; the second tuning structure 207 is arranged opposite to the main body 216, and the projection of the second tuning structure 207 on the second surface may be a rectangle.

[0056] That is, the first tuning structure 206 includes a main body 216 projected as a rectangle on the second surface, and the first tuning structure 206 also includes a second bending portion 226 projected as an L-shape on the second surface. The projection surface of the second tuning structure 207 on the second surface is a rectangle. In other examples, the projection of the first tuning structure 206 on the second surface may also be other shapes, and the projection of the second tuning structure 207 on the second surface may also be other shapes.

[0057] Figure 5 The simulated standing wave diagram of the antenna provided in the embodiment of the present disclosure is Figure 6 The measured standing wave diagram of the antenna provided in the embodiment of the present disclosure.

[0058] Also refer to Figure 5 and Figure 6VSWR (Voltage Standing Wave Ratio) is an important indicator of antenna performance. Usually the industry standard is less than 3. Figure 5 and Figure 6 The simulation and measured data show that the antenna of the embodiment of the present disclosure meets this requirement.

[0059] Continue to refer Figure 1 In some embodiments, the antenna includes: a third conductive via 208, and the third conductive via 208 is used to connect the first radiation unit 222 and the feeding point 203. In this way, the antenna can realize the electrical connection between the radiator 202 and the feeding point 203 through the third conductive via 208, and the connection method is relatively simple. In other examples, the electrical connection between the radiator 202 and the feeding point 203 can also be realized in the form of copper foil routing or cable.

[0060] In some embodiments, the first conductive via 204 connects the third radiation unit 242 and the first tuning structure 206, and the distance between the first conductive via 204 and the first radiation unit 222 is smaller than the distance between the first conductive via 204 and the second radiation unit 232; the second conductive via 205 connects the fourth radiation unit 252 and the second tuning structure 207, and the distance between the second conductive via 205 and the first radiation unit 222 is smaller than the distance between the second conductive via 205 and the second radiation unit 232.

[0061] In some embodiments, the antenna structure 200 further includes a zero-ohm resistor (not shown). The zero-ohm resistor is connected in series to the first tuning structure 206 and / or the second tuning structure 207 to adjust the length of the first tuning structure 206 and / or the second tuning structure 207, thereby adjusting the resonance of the first working frequency band and / or the second working frequency band, so that the antenna can be applied to most products, which is conducive to improving the applicability of the antenna.

[0062] In some embodiments, the antenna structure 200 includes a pad 209, which is located on the second surface and is used to connect the dielectric substrate 201 and the PCB 100. The presence of the pad 209 can increase the reliability of the connection between the dielectric substrate 201 and the PCB 100.

[0063] In some embodiments, the antenna structure 200 includes: a ground feed point 219 , which is connected to the feed point 203 , and the ground feed point 219 is located on the clearance area 110 .

[0064] The ground feed point 219 is a portion of the antenna structure 200 that is connected to a reference ground plane.

[0065] The ground feed point 219 is connected to the feed point 203, and the PCB board 100 is used as another antenna arm, so that the antenna can be regarded as an IFA (Inverted-F Antenna, inverted F) antenna. Different from the general form of PCB board monopole antenna, the IFA antenna does not require an excessively large clearance area 110, and is not so demanding on the environment. In addition, the IFA antenna is a classic derivative of the half-wave dipole antenna. The PCB is used as another arm of the antenna, so the size requirements for the PCB are also very low. There is no need to worry too much about the problem of insufficient reference ground plane, and it can be fully applicable to small-sized Internet of Things terminal products. In addition, the embodiment of the present disclosure uses PCB as another antenna arm to form a half-wave dipole antenna with the radiator 202, which is a typical linear polarization form. Different from the circular polarization mode of the ceramic antenna, linear polarization is omnidirectional radiation, so the universality of the antenna is better. In addition, the use of linearly polarized omnidirectional radiation has no strict requirements on the clearance environment and the frame size, and the tuning mechanism of the first tuning structure 206 and the second tuning structure 207 is generally suitable for the dual-frequency positioning antenna of most Internet of Things products. Compared with the FPC (Flexible Printed Circuit) patch antenna, ceramic antenna, etc. on the market, the antenna efficiency and the measured active OTA (Over The Air, whole machine radiation performance test) data of the embodiment of the present disclosure have great advantages.

[0066] In some embodiments, the radiator 202 , the feeding point 203 , and the ground feeding point 219 are exposed copper portions on the PCB board 100 .

[0067] It should be noted that, as mentioned above, the environments in which antennas of different products are located are different. In order to achieve the universality of the antenna, a method should be designed to allow the antenna to have a tunable range. However, the routing of the radiating part of the antenna on the PCB board cannot be easily changed, so it is possible to consider shortening or lengthening the routing on the PCB board. In actual situations, the routing length can be freely designed on the PCB board according to the situation, or the length of the first tuning structure 206 and / or the second tuning structure 207 can be adjusted by connecting a zero-ohm resistor in series, so that the resonance point frequency of the antenna can be fine-tuned, thereby enhancing the universality of the antenna.

[0068] That is to say, the antenna structure 200 provided in some embodiments of the present application can be applicable to the cellular antennas of most IoT terminal products, which can not only save R&D costs, but also shorten the product R&D cycle and improve product market competitiveness.

[0069] In addition, from the perspective of antenna design, because IoT products are different from mobile phones, they are generally large in size, have good antenna clearance environment, and have no requirements for SAR (Specific Absorption Ratio). Therefore, compared with other forms of antennas, PCB-mounted monopole antennas are a lower-cost and better-performing option.

[0070] In addition, the antenna of the disclosed embodiment can adopt G-type slot technology to achieve dual-frequency resonance, and the frequency range that can be covered is 1150M-1200MHz, 1520M-1620MHz, and the frequency covers the satellite navigation system bands in most areas of the market, including the US GPS, China Beidou, Russia GLONASS and the EU GALILEO (Galileo satellite navigation system, Galileo satellite navigation), etc. Therefore, the frequency band can be applied to most parts of the world. More importantly, the antenna is convenient, fast, simple and trouble-free. General Internet of Things products can directly use the antenna when sufficient clearance environment is reserved. Since the simulation process is carried out completely in accordance with the characteristic impedance of 50 ohms, the antenna matching basically does not require too much debugging, and it can be directly connected to the RF conduction microstrip line. In this way, a lot of manpower, material resources and other R&D costs can be saved, work efficiency is improved, and the product R&D cycle is shortened.

[0071] In the above-mentioned antenna embodiment, the first tuning structure 206 and the second tuning structure 207 are electrically connected to the radiator 202 through the first conductive via 204 and the second conductive via 205, respectively. The working frequency band of the antenna can be adjusted by adjusting the length of the first tuning structure 206 and the second adjustment structure, so that the antenna can be applied to most electronic products, which is conducive to improving the applicability of the antenna. In addition, the antenna implemented in the present disclosure has two resonance points, which can be compatible with the GPS L1 band and the GPS L5 band at the same time. Compared with the related technology that realizes dual-band and needs to debug two antennas separately and then merge and overlap them, the antenna structure 200 of the embodiment of the present disclosure is simple, which can save costs and debugging time, and can improve the applicability of the antenna. In addition, the PCB board form adopted by the antenna in the embodiment of the present disclosure can save manufacturing costs compared with the ceramic form, and the antenna efficiency is also higher, and the coverage bandwidth is also wider, which can also improve the applicability of the antenna.

[0072] Accordingly, another embodiment of the present disclosure further provides an electronic product, including the antenna described in the above embodiment. For the parts that are the same or corresponding to the previous embodiment, reference may be made to the corresponding description of the above embodiment, and will not be described in detail below.

[0073] The electronic product provided in the embodiments of the present disclosure includes the antenna provided in any embodiment of the present application, wherein the electronic product may be a wireless intelligent electronic product, such as a miniaturized tracker, a smart watch, a smart bracelet, a smart phone, etc.

[0074] Those skilled in the art can understand that the above-mentioned embodiments are specific examples for realizing the present disclosure, and in practical applications, various changes can be made to them in form and details without departing from the spirit and scope of the present disclosure. Any person skilled in the art can make their own changes and modifications without departing from the spirit and scope of the present disclosure, so the protection scope of the present disclosure shall be based on the scope defined in the claims.

Claims

1. An antenna, characterized in that: include: A PCB board, wherein the PCB board has a clearance area, and an antenna structure arranged on the clearance area, wherein the antenna structure comprises: a dielectric substrate having a first surface and a second surface opposite to each other; a radiator, the radiator being located on the first surface and having a groove therein that runs through the thickness of the radiator; a feeding point, the feeding point being located on the second surface, and the radiator being electrically connected to the feeding point; A first conductive via and a second conductive via that are independent of each other, wherein one end of each of the first conductive via and the second conductive via is in electrical contact with the radiator, and the other end of each of the first conductive via and the second conductive via extends out of the second surface; a first tuning structure, the first tuning structure being in electrical contact with the other end of the first conductive via; A second tuning structure is provided, wherein the second tuning structure is in electrical contact with the other end of the second conductive via, and the second tuning structure has a different shape from the first tuning structure.

2. The antenna according to claim 1, characterized in that The radiator comprises: A first radiation unit and a second radiation unit are arranged opposite to each other, wherein the first radiation unit and the second radiation unit are located at opposite ends of the first surface; a third radiation unit, wherein the third radiation unit is used to connect the first radiation unit and the second radiation unit; a fourth radiation unit, the fourth radiation unit being connected to an end of the second radiation unit away from the third radiation unit; A first bending portion, wherein the first bending portion is connected to an end of the fourth radiation unit away from the second radiation unit, and a groove is formed between the first radiation unit, the third radiation unit, the second radiation unit, the fourth radiation unit and the first bending portion, and the groove is a G-shaped groove.

3. The antenna according to claim 2, characterized in that: The antenna comprises: A third conductive via is used to connect the first radiation unit and the feeding point.

4. The antenna according to claim 2, characterized in that: The first conductive via connects the third radiation unit and the first tuning structure, and the distance between the first conductive via and the first radiation unit is smaller than the distance between the first conductive via and the second radiation unit; The second conductive via connects the fourth radiation unit and the second tuning structure, and a distance between the second conductive via and the first radiation unit is smaller than a distance between the second conductive via and the second radiation unit.

5. The antenna according to claim 1, characterized in that The first tuning structure comprises: a main body portion, the main body portion being electrically connected to the first conductive via, and the projection surface of the main body portion on the second surface being a rectangle; a second bending portion, the second bending portion being connected to the main body portion; The second tuning structure is arranged opposite to the main body, and a projection surface of the second tuning structure on the second surface is a rectangle.

6. The antenna according to claim 1, characterized in that The antenna structure also includes: A zero-ohm resistor is connected in series to the first tuning structure and / or the second tuning structure.

7. The antenna according to claim 1, characterized in that: The antenna structure comprises: A soldering pad is located on the second surface and is used to connect the dielectric substrate and the PCB board.

8. The antenna according to claim 1, characterized in that: The antenna structure comprises: A ground feeding point, which is connected to the feeding point, and the ground feeding point is located on the clearance area.

9. The antenna according to claim 8, characterized in that The radiator, the feeding point and the exposed copper portion of the PCB board of the ground feeding point.

10. An electronic product, characterized in that: Comprising the antenna as claimed in any one of claims 1 to 9.

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