UWB antenna module and electronic equipment

Abstract

The embodiment of the utility model provides a UWB antenna module and an electronic device. The UWB antenna module comprises: at least three ceramic antennas; each ceramic antenna has a preset first DK value, and at least a part of the ceramic antenna can form a target signal; the feeder substrate has a preset second DK value and is used for transmitting a target signal; one part of the at least three ceramic antennas is arranged along a first direction, and the other part of the at least three ceramic antennas is arranged along a second direction; at least three connecting parts; each connecting part is arranged on the top surface of the feeder substrate, and each ceramic antenna is connected with the feeder substrate through the corresponding connecting part; the at least three connectors are arranged on the bottom surface of the feeder substrate and are used for outputting target signals; the first DK value is greater than 30, and the second DK value is in the range of 3 to 5. The UWB antenna module can realize miniaturization design, so that the performance of the UWB antenna module can be ensured in a limited space of the electronic equipment, and the electronic equipment can realize a precise positioning function.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to a miniaturized UWB antenna module and an electronic device having the UWB antenna module. Background Technology

[0002] UWB (Ultra-Wideband) technology is a wireless communication technology. Because UWB technology transmits data by sending and receiving extremely narrow pulses with nanosecond or even sub-nanosecond ranges, it does not require a carrier wave.

[0003] Generally speaking, UWB technology transmits data by sending and receiving extremely narrow pulses with nanosecond or even sub-nanosecond ranges, which has stronger anti-interference capabilities and thus has a bandwidth on the order of GHz (the minimum bandwidth of UWB can reach 500MHz). Since ranging, radar positioning, and sensitivity are all proportional to bandwidth, UWB technology can achieve high-precision positioning or centimeter-level positioning.

[0004] In summary, UWB technology has multiple advantages, including communication, positioning, and sensing. It is a new technology that integrates communication and sensing, and can realize a wide range of application scenarios. Therefore, UWB technology will be the most widely used, most promising, and most valuable new technology in the field of wireless communication technology.

[0005] However, as electronic devices such as mobile phones, tablets, and remote controls become increasingly powerful, the number of electronic components and antennas they contain is also increasing. At the same time, users have higher and higher requirements for the thinness of electronic devices, which makes the space of electronic devices increasingly limited. That is, the overall thickness of electronic devices such as mobile phones, tablets, and remote controls is designed to be thinner and thinner. Therefore, when electronic devices such as mobile phones, tablets, and remote controls require precise positioning, it is necessary to arrange several ceramic antennas at the top of the electronic device along the horizontal direction (which can be understood as the first direction or the length direction of the substrate body) and the vertical direction (which can be understood as the second direction or the width direction of the substrate body).

[0006] Currently, traditional UWB antenna modules are too large to meet the size requirements of electronic devices that require thinness; in other words, traditional UWB antenna modules cannot guarantee the performance of the antenna (which can be a ceramic antenna) and meet the functional requirements of electronic devices (which can be understood as the requirement for precise positioning) within a limited space. Utility Model Content

[0007] The UWB antenna module and electronic device provided by this utility model are intended to solve at least some of the defects of existing UWB antenna modules suitable for electronic devices.

[0008] In a first aspect, this utility model provides a UWB antenna module. The UWB antenna module includes:

[0009] At least three ceramic antennas; each of the ceramic antennas has a preset first DK value, and at least a portion of the ceramic antenna can form a target signal;

[0010] Feeder substrate; the feeder substrate has a preset second DK value, and the feeder substrate is used to transmit the target signal;

[0011] At least three of the ceramic antennas are arranged in a first direction, and in a second direction, a portion of the latter is arranged along a first direction.

[0012] At least three connecting parts; each of the connecting parts is disposed on the top surface of the feeder substrate, and each of the ceramic antennas is connected to the feeder substrate through the corresponding connecting part;

[0013] At least three connectors; all three connectors are disposed on the bottom surface of the feeder substrate and are used to output the target signal;

[0014] At least three of the connectors are arranged in a portion along the first direction and in a portion along the second direction;

[0015] Wherein, the first direction and the second direction are orthogonal to each other; the first DK value is greater than 30, and the second DK value is in the range of 3 to 5.

[0016] In some embodiments, the connection portion is made of a conductive material to form an electrical connection between the ceramic antenna and the feed substrate.

[0017] In some embodiments, the feeder substrate includes:

[0018] A rectangular substrate body; the top surface of the substrate body has at least three first gaps, and the bottom surface of the substrate body has at least three second gaps;

[0019] The opening position of each of the first gaps corresponds at least partially to the corresponding ceramic antenna, and the opening position of each of the second gaps corresponds to the corresponding connector;

[0020] At least three feeder bodies; a portion of each feeder body is located at a corresponding first gap, and another portion is located at a corresponding second gap;

[0021] The first grounding layer and the second grounding layer are both embedded inside the substrate body; the first grounding layer is located at the top surface of the substrate body, and the second grounding layer is located at the bottom surface of the substrate body.

[0022] Each of the feed line bodies has an impedance of 50Ω, and each of the feed line bodies is embedded inside the substrate body.

[0023] In some embodiments, the feeder body includes:

[0024] First feed pad, second feed pad, first via, feed line, and second via;

[0025] The first feed pad is located at the first gap, and the second feed pad is located at the second gap;

[0026] One end of the first via is connected to the first feed pad; the other end of the first via extends along a third direction and is connected to one end of the feed line; the third direction is orthogonal to the first direction.

[0027] The other end of the feed line extends along the first direction and is connected to one end of the second via; the other end of the second via extends along the third direction to the second feed line pad.

[0028] In some embodiments, the UWB antenna module has a preset first size in the first direction; the UWB antenna module has a preset second size in the second direction; and the UWB antenna module has a preset third size in the third direction.

[0029] Wherein, the first direction is the length direction of the substrate body, the second direction is the width direction of the substrate body, and the third direction is the thickness direction of the substrate body.

[0030] In some embodiments, when the first DK value is greater than 30 and the second DK value is in the range of 3 to 5, the first dimension does not exceed 20 mm, the second dimension does not exceed 9 mm, and the third dimension does not exceed 1.5 mm.

[0031] In some embodiments, the ceramic antenna includes:

[0032] Ceramic body, grounding electrode, radiator, feed probe, and feed pad;

[0033] The ceramic body has a first end and a second end opposite to each other in the third direction; the grounding electrode is embedded inside the ceramic body and is located at the first end;

[0034] The radiator is embedded inside the ceramic body and located at the second end; one end of the feed probe is connected to the radiator and the other end is connected to the feed pad;

[0035] The ceramic body has a third gap at the first end, and the position of the third gap corresponds to the position of the first gap; the power supply pad is located at the third gap.

[0036] In some embodiments, both ends of the radiator in the first direction are opposite to the feed probe; the feed probe extends along the third direction; the second feed pad is connected to the connector;

[0037] The grounding electrode is connected to the first grounding layer through one part of the connecting portion, and the power supply pad is connected to the first feed pad through the other part of the connecting portion.

[0038] In some embodiments, the radiator is used to form the target signal, and the target signal is transmitted to the connector in sequence through the feed probe, the feed pad, the connection between the feed pad and the first feed pad, the first feed pad, the first via, the feed line, the second via, and the second feed pad.

[0039] Secondly, this utility model provides an electronic device. The electronic device includes:

[0040] The device body, the positioning module, and the aforementioned UWB antenna module; the positioning module is located within the device body.

[0041] The connector of the UWB antenna module is connected to the positioning module so that the connector can output the target signal of the UWB antenna module to the positioning module.

[0042] At least one beneficial effect of the UWB antenna module and electronic device provided by this utility model embodiment is: a miniaturized UWB antenna module is proposed, in which the ceramic antenna and the feed substrate are designed separately, and by designing the first DK value of the ceramic antenna to be greater than 30, the size of the ceramic antenna can be effectively reduced; then, the second DK value of the feed substrate is designed to be in the range of 3 to 5, and the ceramic antenna with the first DK value is connected to the feed substrate with the second DK value, which can effectively solve the problem of miniaturization or thinning of the UWB antenna module, thereby ensuring the performance of the UWB antenna module within the limited space of the electronic device and enabling the electronic device to achieve the function of precise positioning. Attached Figure Description

[0043] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0044] Figure 1 This is a schematic diagram of the structure of the UWB antenna module provided in this embodiment of the utility model;

[0045] Figure 2 This is a top view of the UWB antenna module provided in this embodiment of the utility model;

[0046] Figure 3 This is a bottom view of the UWB antenna module provided in this embodiment of the utility model;

[0047] Figure 4 This is a front cross-sectional schematic diagram of a partial structure of the UWB antenna module provided in this embodiment of the present invention.

[0048] Reference numerals: 100, UWB antenna module; 1001, first direction; 1002, second direction; 1003, third direction; 1, ceramic antenna; 11, ceramic body; 12, grounding body; 13, radiator; 14, feed probe; 15, feed pad; 1101, first end; 1102, second end; 1103, third gap; 2, feed substrate; 21, substrate body; 22, feed body; 23, first grounding layer; 24, second grounding layer; 201, top surface; 202, bottom surface; 221, first feed pad; 222, second feed pad; 223, first via; 224, feed; 225, second via; 2011, first gap; 2021, second gap; 3, connection part; 301, connection part located between the feed pad and the first feed pad; 4, connector. Detailed Implementation

[0049] The present invention will now be described in detail with reference to specific embodiments. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

[0050] It should be noted that, unless otherwise explicitly specified and limited, the terms "mutually orthogonal," "first direction," "second direction," "third direction," "length direction," "width direction," "thickness direction," "opposite," etc., used in this specification to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. The terms "installation," "connection," "joining," "fixing," etc., 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features; thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature; "multiple" or "several" means two or more; and "and / or" includes any and all combinations of one or more of the associated listed items. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] For ease of explanation, Figure 4 This diagram shows only a ceramic antenna and a corresponding section of the feed substrate.

[0052] For ease of explanation, "frontal view" refers to observation at an angle where the plane formed by the first direction and the third direction is perpendicular or nearly perpendicular to the line of sight; "top view" refers to observation at an angle where the plane formed by the first direction and the second direction is perpendicular or nearly perpendicular to the line of sight, and at least three ceramic antennas are fully visible; "bottom view" refers to observation at an angle where the plane formed by the first direction and the second direction is perpendicular or nearly perpendicular to the line of sight, and at least three connectors are fully visible.

[0053] Figure 1 This is a schematic diagram of the structure of the UWB antenna module provided in this embodiment of the utility model. Figure 2 This is a top view of the UWB antenna module provided in this embodiment of the utility model. Figure 3 This is a bottom view of the UWB antenna module provided in this embodiment of the utility model. Figure 4 This is a front cross-sectional schematic diagram of a partial structure of the UWB antenna module provided in this embodiment of the present invention.

[0054] Please see Figures 1-4The UWB antenna module 100 includes: at least three ceramic antennas 1, a feed substrate 2, at least three connecting parts 3, and at least three connectors 4.

[0055] Each ceramic antenna 1 has a preset first DK value, and at least a portion of the ceramic antenna 1 can form a target signal.

[0056] Generally speaking, the size parameters of an antenna are negatively correlated with its DK (Dielectric Constant), meaning that the size parameters of the antenna will decrease as DK increases. Furthermore, the DK of a conventional antenna is in the range of 3 to 5. However, the first DK value of the ceramic antenna 1 in this application is greater than 30. This design can reduce the size of the UWB antenna module 100 from the conventional 13mm to 15mm to less than 4mm.

[0057] Specifically, the radiator 13 of the ceramic antenna 1 can not only emit extremely narrow detection pulses with nanosecond or even sub-nanosecond ranges to the target object (not shown in the figure) within the target area (not shown in the figure), but also receive the target signal reflected back by the target object (or echo pulse, which refers to the pulse data reflected back by the target object after the detection pulse hits the target object); therefore, the target signal can carry the distance information between the target object and the electronic device (not shown in the figure) equipped with the UWB antenna module 100.

[0058] Understandably, since UWB technology transmits data by sending and receiving extremely narrow pulses with nanosecond or even sub-nanosecond ranges, it does not require a carrier wave. Therefore, the UWB antenna module 100 using UWB technology has a bandwidth on the order of GHz, and the minimum bandwidth of this UWB antenna module 100 can reach 500MHz. Since ranging, radar positioning, and sensitivity are all proportional to bandwidth, UWB technology can achieve high-precision positioning or centimeter-level positioning.

[0059] It should be noted that DK (Dielectric Constant) refers to the dielectric constant, dielectric constant, or permittivity, which is a property that can represent the ability of a material to hold charge (the dielectric constant can also be understood as the degree of response of a material to an electric field).

[0060] In addition, the feeder substrate 2 has a preset second DK value, and the feeder substrate 2 is used to transmit the aforementioned target signal.

[0061] In addition, at least three ceramic antennas 1 are arranged along a first direction 1001 to achieve precise positioning of the electronic device in the horizontal direction; while at least three ceramic antennas 1 are arranged along a second direction 1002 to achieve precise positioning of the electronic device in the vertical direction.

[0062] To further explain, each connecting part 3 is provided on the top surface 201 of the feeder substrate 2, and each ceramic antenna 1 is connected to the feeder substrate 2 through the corresponding connecting part 3.

[0063] In this embodiment, at least three connectors 4 are disposed on the bottom surface 202 of the feeder substrate 2 and are used to output the aforementioned target signal.

[0064] Specifically, at least three connectors 4 are arranged in a first direction 1001 and in a second direction 1002, with one portion of each connector 4 arranged along the first direction 1001.

[0065] It should be noted that the first direction 1001 and the second direction 1002 are orthogonal to each other; the first DK value is greater than 30, and the second DK value is in the range of 3 to 5.

[0066] Generally speaking, the smaller the second DK value of the feeder substrate 2, the smaller the signal loss when transmitting the target signal.

[0067] It is understandable that when the first DK value is greater than 30, the size parameters of the ceramic antenna 1 can be effectively reduced. Subsequently, when the second DK value of the feeder substrate is in the range of 3 to 5, and the ceramic antenna with the first DK value is connected to the feeder substrate with the second DK value, the miniaturization or thinning problem of the UWB antenna module can be effectively solved. This ensures the performance of the UWB antenna module 100 within the limited space of the electronic device and enables the electronic device (not shown in the figure) to achieve precise positioning.

[0068] In some embodiments, such as Figure 4 It is known that the connecting part 3 is made of conductive material so as to form an electrical connection between the ceramic antenna 1 and the feed substrate 2.

[0069] Specifically, the conductive material includes, but is not limited to: solder paste, conductive adhesive, and conductive slurry.

[0070] In some embodiments, according to Figure 1 and Figure 4 It is known that the feeder substrate 2 includes: a rectangular substrate body 21, at least three feeder bodies 22, a first ground layer 23, and a second ground layer 24.

[0071] To further explain, the substrate body 21 can be made of PCB (Printed Circuit Board) material, FPC (Flexible Printed Circuit Board) material, or ceramic material. It can not only cover at least three feeder bodies 22, the first ground layer 23 and the second ground layer 24, but also support at least three connection parts 3 and at least three ceramic antennas 1.

[0072] The substrate body 21 has at least three first gaps 2011 on its top surface 201 and at least three second gaps 2021 on its bottom surface 202. The first ground layer 23 has a first through hole (not shown in the figure) with a shape, size and position that matches the first gaps 2011. The second ground layer 24 has a second through hole (not shown in the figure) with a shape, size and position that matches the second gaps 2021.

[0073] In addition, the first gap 2011 is the gap between the first feed pad 221 and the first ground layer 23, and the second gap 2021 is the gap between the second feed pad 222 and the second ground layer 24.

[0074] Furthermore, the opening position of each first gap 2011 corresponds at least partially to the corresponding ceramic antenna 1, and the opening position of each second gap 2021 corresponds to the corresponding connector 4.

[0075] In this embodiment of the application, a portion of each feeder body 22 is located at the corresponding first gap 2011, and another portion is located at the corresponding second gap 2021.

[0076] Specifically, the first ground layer 23 and the second ground layer 24 are both embedded inside the substrate body 21; the first ground layer 23 is located at the top surface 201 of the substrate body 21, and the second ground layer 24 is located at the bottom surface 202 of the substrate body 21.

[0077] To further explain, each feeder body 22 has an impedance of 50Ω, and each feeder body 22 is embedded inside the substrate body 21.

[0078] In some embodiments, refer to Figure 4 It can be seen that the feeder body 22 includes: a first feeder pad 221, a second feeder pad 222, a first via 223, a feeder 224, and a second via 225.

[0079] It should be noted that the first via 223, the feed line 224, and the second via 225 are all transmission lines to realize the transmission of the target signal. Generally speaking, the first via 223 and the second via 225 are usually metal vias to realize the interconnection between the first feed line pad 221, the second feed line pad 222, the first via 223, the feed line 224, and the second via 225.

[0080] The first feed pad 221 is located at the first gap 2011, and the second feed pad 222 is located at the second gap 2021.

[0081] Additionally, one end of the first via 223 is connected to the first feed pad 221; the other end of the first via 223 extends along the third direction 1003 and is connected to one end of the feed 224; the third direction 1003 is orthogonal to the first direction 1001.

[0082] In addition, the other end of the feed line 224 extends along the first direction 1001 and is connected to one end of the second via 225; the other end of the second via 225 extends along the third direction 1003 to the second feed line pad 222.

[0083] In some embodiments, combined with Figure 1 and Figure 4 It can be seen that the UWB antenna module 100 has a preset first size in the first direction 1001; the UWB antenna module 100 has a preset second size in the second direction 1002; and the UWB antenna module 100 has a preset third size in the third direction 1003.

[0084] It should be noted that the first direction 1001 is the length direction of the substrate body 21, the second direction 1002 is the width direction of the substrate body 21, and the third direction 1003 is the thickness direction of the substrate body 21.

[0085] In some embodiments, when the first DK value is greater than 30 and the second DK value is in the range of 3 to 5, the first dimension does not exceed 20 mm, the second dimension does not exceed 9 mm, and the third dimension does not exceed 1.5 mm.

[0086] In some embodiments, please refer to Figure 4 The ceramic antenna 1 includes: a ceramic body 11, a grounding body 12, a radiator 13, a feed probe 14, and a feed pad 15.

[0087] Specifically, the radiator 13 can be a square, a rectangle, or other planar shape.

[0088] To further explain, the ceramic body 11 has a first end 1101 and a second end 1102 on the third direction 1003; the grounding body 12 is embedded inside the ceramic body 11 and is located at the first end 1101.

[0089] Specifically, the radiator 13 is embedded inside the ceramic body 11 and located at the second end 1102; one end of the power supply probe 14 is connected to the radiator 13, and the other end is connected to the power supply pad 15.

[0090] In this embodiment of the application, the ceramic body 11 has a third gap 1103 at the first end 1101, and the opening position of the third gap 1103 corresponds to the first gap 2011; the power feeding pad 15 is located at the third gap 1103.

[0091] It should be noted that the third gap 1103 is the gap between the power supply pad 15 and the grounding body 12.

[0092] In some embodiments, by Figure 4 It can be seen that the two ends of the radiator 13 in the first direction 1001 are opposite to the feed probe 14; the feed probe 14 extends along the third direction 1003; the second feed pad 222 is connected to the connector 4.

[0093] It is understood that the grounding body 12 is connected to the first grounding layer 23 through one part of the connecting part 3, and the power supply pad 15 is connected to the first feed pad 221 through the other part of the connecting part 3.

[0094] In some embodiments, such as Figure 4 As shown, the radiator 13 is used to form a target signal, and the target signal is transmitted to the connector 4 in sequence through the feed probe 14, the feed pad 15, the connection part 301 located between the feed pad and the first feed pad, the first feed pad 221, the first via 223, the feed line 224, the second via 225 and the second feed pad 222.

[0095] Please see Figures 1-4 The electronic device (not shown in the figure) includes: a device body (not shown in the figure), a positioning module (not shown in the figure), and the aforementioned UWB antenna module 100.

[0096] The positioning module is located inside the main body of the device.

[0097] In addition, the connector 4 of the UWB antenna module 100 is connected to the positioning module so that the connector 4 can output the target signal of the UWB antenna module 100 to the positioning module.

[0098] Furthermore, the aforementioned target signal can carry distance information between the target object and the electronic device equipped with the UWB antenna module 100; therefore, the target signal is transmitted to the positioning module, and after being processed by the positioning module, the specific distance information can be displayed to achieve accurate positioning.

[0099] In summary, the UWB antenna module and electronic device provided by this utility model embodiment employ a separate design for the ceramic antenna and feed substrate. By designing the first DK value of the ceramic antenna to be greater than 30, the size of the ceramic antenna can be effectively reduced. Furthermore, by designing the second DK value of the feed substrate to be in the range of 3 to 5, and connecting the ceramic antenna with the first DK value to the feed substrate with the second DK value, the miniaturization or thinning problem of the UWB antenna module can be effectively solved. This allows the performance of the UWB antenna module to be guaranteed within the limited space of the electronic device, enabling the electronic device to achieve precise positioning. Therefore, the UWB antenna module and electronic device provided by this utility model embodiment have a certain degree of novelty compared to traditional UWB antenna modules and electronic devices.

[0100] The above description, in conjunction with specific / preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and all of these fall within the protection scope of the present invention.

Claims

1. A UWB antenna module, characterized in that, The UWB antenna module comprises: at least three ceramic antennas, each of which has a preset first DK value, and at least a part of each of the ceramic antennas forms a target signal; a feed line substrate; the feed line substrate has a preset second DK value, and the feed line substrate is used for transmitting the target signal; at least a part of each of the ceramic antennas is arranged in a first direction, and another part of each of the ceramic antennas is arranged in a second direction; at least three connecting parts, each of which is arranged on a top surface of the feed line substrate, and each of the ceramic antennas is connected to the feed line substrate through a corresponding connecting part; at least three connectors, each of which is arranged on a bottom surface of the feed line substrate, and each of the connectors is used for outputting the target signal; at least a part of each of the connectors is arranged in the first direction, and another part of each of the connectors is arranged in the second direction; wherein the first direction and the second direction are perpendicular to each other; the first DK value is greater than 30, and the second DK value is in a range of 3 to 5.

2. The UWB antenna module according to claim 1, wherein: the connecting part is made of conductive material to form an electrical connection between the ceramic antenna and the feed line substrate.

3. The UWB antenna module of claim 1, wherein, The feed line substrate comprises: a rectangular substrate body, a top surface of the substrate body is provided with at least three first gaps, and a bottom surface of the substrate body is provided with at least three second gaps; each of the first gaps is arranged at a position corresponding to at least a part of a corresponding ceramic antenna, and each of the second gaps is arranged at a position corresponding to a corresponding connector; at least three feed line bodies, each of which has a part located at a corresponding first gap and another part located at a corresponding second gap; a first ground layer and a second ground layer, both of which are embedded in the substrate body; the first ground layer is located at the top surface of the substrate body, and the second ground layer is located at the bottom surface of the substrate body; each of the feed line bodies has an impedance of 50Ω, and each of the feed line bodies is embedded in the substrate body.

4. The UWB antenna module of claim 3, wherein, The feed line body comprises: a first feed line pad, a second feed line pad, a first via, a feed line, and a second via; the first feed line pad is located at the first gap, and the second feed line pad is located at the second gap; one end of the first via is connected to the first feed line pad; the other end of the first via extends in a third direction and is connected to one end of the feed line; the third direction is perpendicular to the first direction; the other end of the feed line extends in the first direction and is connected to one end of the second via; the other end of the second via extends in the third direction to the second feed line pad.

5. The UWB antenna module according to claim 4, wherein: the UWB antenna module has a preset first size in the first direction; the UWB antenna module has a preset second size in the second direction; and the UWB antenna module has a preset third size in the third direction. The first direction is a length direction of the substrate body, the second direction is a width direction of the substrate body, and the third direction is a thickness direction of the substrate body.

6. The UWB antenna module of claim 5, wherein, when the first DK value is greater than 30 and the second DK value is in a range of 3 to 5, the first size is no more than 20 mm, the second size is no more than 9 mm, and the third size is no more than 1.5 mm.

7. The UWB antenna module of claim 4, wherein, The ceramic antenna comprises: a ceramic body, a ground body, a radiation body, a feeding probe, and a feeding pad; The ceramic body has opposite first and second ends in the third direction; the ground body is embedded inside the ceramic body and located at the first end; The radiation body is embedded inside the ceramic body and located at the second end; one end of the feeding probe is connected to the radiation body, and the other end is connected to the feeding pad; The ceramic body is provided with a third gap at the first end, and the third gap is located at a position corresponding to the first gap; the feeding pad is located at the third gap.

8. The UWB antenna module of claim 7, wherein, both ends of the radiation body in the first direction are away from the feeding probe; the feeding probe extends along the third direction; the second feeding pad is connected to the connector; The ground body is connected to the first ground layer through one part of the connecting part, and the feeding pad is connected to the first feeding pad through another part of the connecting part.

9. The UWB antenna module of claim 7, wherein, The radiation body is used to form the target signal, and the target signal is transmitted to the connector in sequence through the feeding probe, the feeding pad, the connecting part between the feeding pad and the first feeding pad, the first feeding pad, the first via, the feeding line, the second via, and the second feeding pad.

10. An electronic device, comprising: comprises: a device body, a positioning module, and the UWB antenna module of any one of claims 1-9; The positioning module is arranged in the device body; The connector of the UWB antenna module is connected to the positioning module, so that the connector can output the target signal of the UWB antenna module to the positioning module.

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