Mouse device and pointing antenna device

Abstract

The utility model discloses a mouse device and pointing antenna device. The mouse device contains a casing, installs the circuit board in the casing and installs the signal module and two button activators in the circuit board. The ground layer of circuit board has the front end edge adjacent to the front end part of casing, and the ground layer is recessed from the front end edge and forms the slot hole antenna between two button activators. The signal module contains the radiation antenna spaced apart from the slot hole antenna and the signal transceiver connected to the radiation antenna. The projection area formed by the radiation antenna orthographic projection to the circuit board is orthogonal to the slot hole antenna. Thus, the signal transmission mode with directivity is provided to resist environmental crosstalk and reduce the probability of packet loss, and the mouse device can be applied in the specific field with higher signal transmission requirements.

Description

Technical Field

[0001] This utility model relates to an antenna structure, and more particularly to a mouse device and a directional antenna device. Background Technology

[0002] Existing wireless mice all employ an isotropic antenna structure to minimize limitations on their usability. However, this isotropic antenna structure also makes them unsuitable for applications requiring high signal transmission precision (such as gaming mice).

[0003] Therefore, the applicant believes that the above-mentioned defects can be improved, and proposes a utility model with a reasonable design that effectively improves the above-mentioned defects. Utility Model Content

[0004] This utility model provides a mouse device and a directional antenna device, which can effectively improve the defects that may occur in existing wireless mice.

[0005] This utility model discloses a mouse device, comprising: a housing having a front end and a rear end located at opposite ends; a circuit board mounted within the housing and having a ground layer, the ground layer having a front edge adjacent to the front end, and a rectangular slot antenna recessed from the front edge of the ground layer; a signal module located within the housing and mounted on the circuit board, the signal module comprising: a radiating antenna spaced apart from the slot antenna; wherein the radiating antenna projects onto a projection area formed by its projection onto the circuit board, which is orthogonal to the slot antenna; a transceiver connected to the radiating antenna for transmitting and receiving signals to the radiating antenna, thereby coupling the radiating antenna to the slot antenna; and two button activators mounted on the circuit board and located on opposite sides of the slot antenna.

[0006] Optionally, the signal module is used to transmit signals at a preset frequency, and the length of the slot antenna is 1 / 2 to 1 / 8 of the wavelength corresponding to the preset frequency.

[0007] Optionally, the length of the radiating antenna is less than the length of the slot antenna.

[0008] Optionally, the width of the radiating antenna is between 25% and 200% of the width of the slot antenna.

[0009] Optionally, the radiating antenna is spaced apart from the slot antenna along a thickness direction, and the slot antenna has a shielding area corresponding to the radiating antenna along the thickness direction; wherein the distance between the shielding area and the slot of the slot antenna is greater than or equal to 50% of the length of the slot antenna.

[0010] Optionally, the radiating antenna has: a transverse segment corresponding to the shielding area along the thickness direction; a first line segment connected to one end of the transverse segment and connected to a signal transceiver; and a second line segment connected to the other end of the transverse segment, wherein the length of the second line segment is less than or equal to 20 mm.

[0011] Optionally, the first segment has a feed point connected to the signal transceiver, and the signal module includes at least one matching element connected to the feed point and the portion of the first segment spanning the segment.

[0012] Optionally, the slot antenna has: a first longitudinal segment extending from the front edge; a transverse segment, one end of which is connected to the first longitudinal segment, and the transverse segment and the first longitudinal segment together form a notch; a second longitudinal segment connected to the other end of the transverse segment; wherein the radiating antenna is adjacent to and spaced apart from the second longitudinal segment.

[0013] Optionally, the mouse device includes an electrical connector mounted on a circuit board, and at least a portion of the electrical connector is located within a recess.

[0014] Optionally, the signal module includes at least one matching element electrically coupled to the radiating antenna.

[0015] Optionally, the radiating antenna can be coupled to the slot antenna to form a directional signal; the mouse device includes an adapter and the adapter is disposed at the front of the front end of the housing.

[0016] Optionally, the circuit board includes a board body, and a ground layer is disposed on the board body, the board body forming a through slot corresponding to the slot antenna; wherein, the mouse device includes a roller pivotally connected to the housing, and the roller passes through the slot antenna and the through slot.

[0017] This utility model also discloses a directional antenna device, comprising: a ground layer having a front edge, and a slot antenna formed by recessing the ground layer from the front edge; a signal module disposed corresponding to the ground layer, and the signal module comprising: a radiating antenna spaced apart from the slot antenna; wherein the radiating antenna is projected onto a projection area formed by projecting it onto the ground layer, which is orthogonal to the slot antenna; and a signal transceiver connected to the radiating antenna for transmitting and receiving signals to the radiating antenna, so that the radiating antenna is coupled to the slot antenna to form a directional signal.

[0018] Optionally, the signal module is used to transmit signals at a preset frequency, and the length of the slot antenna is 1 / 2 to 1 / 8 of the wavelength corresponding to the preset frequency.

[0019] Optionally, the length of the radiating antenna is less than the length of the slot antenna.

[0020] Optionally, the radiating antenna is spaced apart from the slot antenna along a thickness direction, and the slot antenna has a shielding area corresponding to the radiating antenna along the thickness direction; wherein the distance between the shielding area and the slot of the slot antenna is greater than or equal to 50% of the length of the slot antenna.

[0021] Optionally, the radiating antenna has: a transverse segment corresponding to the shielding area along the thickness direction; a first line segment connected to one end of the transverse segment and connected to a signal transceiver; and a second line segment connected to the other end of the transverse segment, wherein the length of the second line segment is less than or equal to 20 mm.

[0022] Optionally, the first segment has a feed point connected to the signal transceiver, and the signal module includes at least one matching element connected to the feed point and the portion of the first segment spanning the segment.

[0023] Optionally, the slot antenna has: a first longitudinal segment extending from the front edge; a transverse segment, one end of which is connected to the first longitudinal segment, and the transverse segment and the first longitudinal segment together form a notch; a second longitudinal segment connected to the other end of the transverse segment; wherein the radiating antenna is adjacent to and spaced apart from the second longitudinal segment.

[0024] This utility model also discloses a directional antenna device, comprising: a ground layer having a front end edge, and the ground layer having: a slot antenna recessed from the front end edge; a wire slot communicating with the slot antenna, wherein the long axis of the wire slot is orthogonal to the long axis of the slot antenna; a signal module disposed corresponding to the ground layer, and the signal module comprising: a radiating antenna located within the wire slot; wherein the long axis of the radiating antenna is orthogonal to the long axis of the slot antenna; and a signal transceiver connected to the radiating antenna for transmitting and receiving signals to the radiating antenna, so that the radiating antenna is coupled to the slot antenna to form a directional signal.

[0025] In summary, the mouse device and directional antenna device disclosed in this utility model embodiment can provide a directional signal transmission method to resist environmental crosstalk and reduce the probability of packet loss through the structural configuration of the radiating antenna and the slot antenna, thereby facilitating the application of the mouse device in specific fields with high requirements for signal transmission (such as e-sports mice).

[0026] Furthermore, the mouse device and directional antenna device disclosed in this utility model embodiment can effectively reduce the area occupied by the antenna through the structural configuration of the radiating antenna and the slot antenna, thereby facilitating the lightweighting of the mouse device and improving the design flexibility of the internal components of the mouse device.

[0027] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, these descriptions and drawings are only used to illustrate this utility model and are not intended to limit the scope of protection of this utility model in any way. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of the mouse device according to Embodiment 1 of this utility model.

[0029] Figure 2 for Figure 1 A partial cross-sectional view of a mouse device.

[0030] Figure 3 for Figure 1 A partial cross-sectional view of another aspect of the mouse device.

[0031] Figure 4 for Figure 2 A schematic cross-sectional view along section line IV-IV.

[0032] Figure 5 for Figure 4 A cross-sectional view of another state.

[0033] Figure 6 This is a partial cross-sectional view of the mouse device according to Embodiment 2 of this utility model.

[0034] Figure 7 This is a partial cross-sectional schematic diagram of the mouse device according to Embodiment 3 of this utility model.

[0035] Figure 8 This is a partial cross-sectional view of the mouse device according to Embodiment 4 of this utility model.

[0036] Figure 9 for Figure 8 A cross-sectional view along section line IX-IX.

[0037] Figure 10 for Figure 9 A cross-sectional view of another state. Detailed Implementation

[0038] The following specific embodiments illustrate the implementation of the "mouse device and directional antenna device" disclosed in this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustrative purposes only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0039] It should be understood that while terms such as “first,” “second,” and “third” may be used in this document to describe various elements or features, these elements or features should not be limited by these terms. These terms are primarily used to distinguish one element from another, or one feature from another. Furthermore, the term “or” as used herein may, depending on the context, include any combination of one or more of the related listed items.

[0040] [Example 1]

[0041] Please see Figures 1 to 5 As shown, this is one embodiment of the present invention. This embodiment discloses a mouse device 100, which is described below as a wireless optical mouse device. However, the specific type of the mouse device 100 can be varied according to actual needs, and the present invention does not limit it here.

[0042] like Figure 1 and Figure 2 As shown, the mouse device 100 in this embodiment includes a housing 1, a circuit board 2 installed within the housing 1, a signal module 3 located within the housing 1 and installed on the circuit board 2, two button activators 4 (e.g., left and right buttons), a scroll wheel 5 pivotally connected to the housing 1, and a dongle 6 spaced apart from the housing 1. However, this invention is not limited to this. For example, in other embodiments not shown in this invention, the scroll wheel 5 and the dongle 6 may be omitted or replaced with other components depending on actual needs.

[0043] In this embodiment, the housing 1 includes an outer shell and a structure for supporting other components, and the roller 5 is partially exposed outside the housing 1 for user rolling operation. The housing 1 is defined with a front end 11 and a rear end 12 located at opposite ends, and the roller 5 is adjacent to the front end 11.

[0044] The circuit board 2 has a board body 21 and a ground layer 22 disposed on the board body 21, and the ground layer 22 has a front edge 221 adjacent to the front end portion 11. A rectangular slot antenna 222 is recessed from the front edge 221 in the ground layer 22, and the board body 21 has a through slot 211 corresponding to the slot antenna 222. The roller 5 passes through the slot antenna 222 and the through slot 211.

[0045] It should be noted that the "positional correspondence" between the through slot 211 and the slotted antenna 222 means that they at least partially overlap and connect, so that the roller 5 can pass through them. That is to say, the circuit board 2 in this embodiment... Figure 2 Although the through-slot 211 is depicted with its sidewall adjacent to the hole sidewall of the slotted antenna 222, and its bottom wall distant from the hole bottom wall of the slotted antenna 222, this invention is not limited thereto. For example, such as Figure 3 As shown, the through groove 211 may also be formed inside the plate 21 and not extend to the leading edge of the plate 21; or, in other embodiments not shown in this utility model, the plate 21 may not have the through groove 211 formed according to actual needs.

[0046] like Figure 2 and Figure 4 As shown, the signal module 3 in this embodiment is used to transmit signals at a preset frequency (e.g., 2.4 GHz or 5 GHz), and the signal module 3 includes a signal transceiver 31 and a radiating antenna 32 connected to the signal transceiver 31. The signal transceiver 31 is, for example, an RF chip with wireless transmission and reception circuitry, and is electrically coupled to the circuit board 2. Furthermore, the signal transceiver 31 is used to transmit and receive signals to the radiating antenna 32, so that the radiating antenna 32 is coupled to the slot antenna 222.

[0047] Furthermore, the radiating antenna 32 (along a thickness direction T) is spaced apart from the slot antenna 222, and the spacing between the radiating antenna 32 and the slot antenna 222 can be adjusted and varied according to actual needs; for example, such as Figure 4 As shown, the grounding layer 22 and the radiating antenna 32 may be located on the same side of the plate 21, and the grounding layer 22 and the radiating antenna 32 are separated by an insulating layer 23; or, as shown... Figure 5 As shown, the grounding layer 22 and the radiating antenna 32 can also be located on opposite sides of the plate 21.

[0048] Furthermore, the types of the plate 21 and the radiating antenna 32 can be adjusted and changed according to actual needs. For example, the plate 21 can be a fiberglass board (FR4), a ceramic board, or a plastic board, while the radiating antenna 32 can be a microstrip line, a coplanar waveguide (CPW), or a grounded coplanar waveguide (GCPW), but this utility model is not limited to these.

[0049] More specifically, the radiating antenna 32 is elongated (or rectangular), and the two button activators 4 are located on opposite sides of the slot antenna 222. The radiating antenna 32 projects onto a projection area formed by its projection onto the circuit board 2, which is orthogonal to the slot antenna 222 (and perpendicular to the thickness direction T) and does not cover the through slot 211, thereby enabling the radiating antenna 32 to couple to the slot antenna 222 to form a directional signal. Thus, in this embodiment, the adapter 6 can be used as follows... Figure 1 and Figure 2 The adapter 6 is positioned in front of the front end portion 11 of the housing 1 (or in front of the slot antenna 222) so that the adapter 6 is within the coverage of the directional signal.

[0050] As described above, in this embodiment, the mouse device 100 can provide a directional signal transmission method to resist environmental crosstalk and reduce the probability of packet loss through the structural configuration of the radiating antenna 32 and the slot antenna 222, thereby enabling the mouse device 100 to be used in specific fields with high requirements for signal transmission (such as e-sports mice).

[0051] Furthermore, in this embodiment, the mouse device 100 effectively reduces the area required by the antenna by using the structural configuration of the radiating antenna 32 and the slot antenna 222 (e.g., the area occupied by the antenna of the mouse device 100 can be reduced from 150 square millimeters to 250 square millimeters required by the existing omnidirectional antenna structure to 15 square millimeters), thereby facilitating the lightweighting of the mouse device 100 and improving the design flexibility of the internal components of the mouse device 100.

[0052] It should be noted that, in order to enable the signal transmission of the mouse device 100 to have selectable directionality, the slot antenna 222 and the radiating antenna 32 may further have at least some of the following conditions, but are not limited thereto.

[0053] like Figure 2 and Figure 4As shown, the length L222 of the slot antenna 222 is 1 / 2 to 1 / 8 of the wavelength corresponding to the preset frequency, and the slot antenna 222 has a shielding region 2221 along the thickness direction T corresponding to the radiating antenna 32. The distance D between the shielding region 2221 and the slot 2222 of the slot antenna 222 is greater than or equal to 50% of the length L222 of the slot antenna 222 (e.g., the distance D is preferably between 60% and 90% of the length L222). Furthermore, the length L32 of the radiating antenna 32 is less than the length L222 of the slot antenna 222, and the width W32 of the radiating antenna 32 is between 25% and 200% of the width W222 of the slot antenna 222.

[0054] Furthermore, in this embodiment, the radiating antenna 32 has a spanning segment 323, a first line segment 321 connected to (or extending from) one end of the spanning segment 323, and a second line segment 322 connected to (or extending from) the other end of the spanning segment 323, but the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the second line segment 322 may be omitted from the radiating antenna 32 according to actual needs.

[0055] In this embodiment, the transverse segment 323, along the thickness direction T, corresponds to (or overlaps with) the shielding area 2221 of the slot antenna 222, and the first segment 321 is connected to the transceiver 31 (that is, the first segment 321 has a feed point P connected to the transceiver 31), while the length of the second segment 322 can be less than or equal to 20 millimeters (mm), but is not limited thereto. Thus, the radiating antenna 32 can directly transmit the energy of the wireless signal through the feed point P and couple it to the slot antenna 222, thereby providing the main radiated energy through the slot antenna 222.

[0056] It should be further noted that the grounding layer 22 and the signal module 3 in this embodiment can also be defined together as a directional antenna device. Although the directional antenna device is described above in the context of mouse applications, this invention is not limited thereto. For example, in other embodiments of this invention not shown, the directional antenna device can also be used independently (e.g., for sale) or applied in other fields according to actual needs.

[0057] [Example 2]

[0058] Please see Figure 6As shown, this is Embodiment Two of the present invention. Since this embodiment is similar to Embodiment One described above, the similarities between the two embodiments will not be repeated. The main differences between this embodiment and Embodiment One are explained below: In this embodiment, the signal module 3 further includes at least one matching element 33 (e.g., a capacitor and / or an inductor) electrically coupled to the radiating antenna 32, and at least one of the matching elements 33 in this embodiment is the portion of the first line segment 321 connected between the feed point P and the cross segment 323, but is not limited thereto.

[0059] [Example 3]

[0060] Please see Figure 7 As shown, this is Embodiment Three of the present invention. Since this embodiment is similar to Embodiments One and Two described above, the similarities between the two embodiments will not be repeated. The main differences between this embodiment and Embodiments One and Two are explained below: In this embodiment, the slot antenna 222 has a first longitudinal segment 2223 extending from the front edge 221 (or the slot 2222), a second longitudinal segment 2224 parallel to the first longitudinal segment 2223, and a transverse segment 2225 connected between the first longitudinal segment 2223 and the second longitudinal segment 2224. One end of the transverse segment 2225 is vertically connected to the first longitudinal segment 2223, and the transverse segment 2225 and the first longitudinal segment 2223 together form a notch O. Furthermore, in this embodiment, the mouse device 100 also includes an electrical connector 7 mounted on the circuit board 2, and at least a portion of the electrical connector 7 is located within the notch O.

[0061] Furthermore, the second longitudinal segment 2224 is (vertically) connected to the other end of the transverse segment 2225, and the radiating antenna 32 is adjacent to and spaced apart from the second longitudinal segment 2224. That is, the shielding area 2221 of the slot antenna 222 is located in the second longitudinal segment 2224, and the projection area formed by the orthogonal projection of the radiating antenna 32 toward the circuit board 2 is orthogonal to the second longitudinal segment 2224 of the slot antenna 222.

[0062] [Example 4]

[0063] Please see Figures 8 to 10 As shown, this is Embodiment 4 of the present invention. Since this embodiment is similar to Embodiments 1 to 3 described above, the similarities between the two embodiments will not be repeated. The main differences between this embodiment and Embodiments 1 to 3 described above are as follows: In this embodiment Figure 8 and Figure 9 In this configuration, the ground layer 22 further forms a rectangular slot 223 that connects to the slot antenna 222, with the major axis of the slot 223 orthogonal to the major axis of the slot antenna 222. The radiating antenna 32 is located within the slot 223 (i.e., the major axis of the radiating antenna 32 is orthogonal to the major axis of the slot antenna 222, and the ground layer 22 and the radiating antenna 32 are disposed on the same surface of the plate 21). Therefore, the transceiver 31 can transmit and receive signals to the radiating antenna 32, causing the radiating antenna 32 to couple to the slot antenna 222 to form the directional signal.

[0064] Furthermore, in this embodiment Figure 10 In this embodiment, there may be two grounding layers 22, and the two grounding layers 22 are respectively disposed on opposite sides of the plate 21 and electrically coupled to each other. Further, each grounding layer 22 forms the slotted antenna 222 and the wire groove 223, and the slotted antenna 222 and the groove wall of the two grounding layers 22 are tangent to each other along the thickness direction T, but this invention is not limited thereto.

[0065] [Technical Effects of the Embodiments of this Utility Model]

[0066] In summary, the mouse device and directional antenna device disclosed in this utility model embodiment can provide a directional signal transmission method to resist environmental crosstalk and reduce the probability of packet loss through the structural configuration of the radiating antenna and the slot antenna, thereby facilitating the application of the mouse device in specific fields with high requirements for signal transmission (such as e-sports mice).

[0067] Furthermore, the mouse device and directional antenna device disclosed in this utility model embodiment can effectively reduce the area occupied by the antenna through the structural configuration of the radiating antenna and the slot antenna, thereby facilitating the lightweighting of the mouse device and improving the design flexibility of the internal components of the mouse device.

Claims

1. A mouse device, characterized in that, The mouse device includes: A housing is defined having a front end and a rear end located at opposite ends; A circuit board is mounted inside the housing and has a ground layer, wherein the ground layer has a front edge adjacent to the front end, and a rectangular slot antenna is recessed from the front edge of the ground layer. A signal module, located within the housing and mounted on the circuit board, and the signal module comprising: A radiating antenna, spaced apart from the slot antenna; wherein the radiating antenna projects its projection onto a projection area formed by the orthographic projection of the radiating antenna onto the circuit board, which is orthogonal to the slot antenna; and A transceiver, connected to the radiating antenna, is used to transmit and receive signals to the radiating antenna, thereby coupling the radiating antenna to the slot antenna; and Two button activators are mounted on the circuit board and located on opposite sides of the slot antenna, respectively.

2. The mouse device according to claim 1, characterized in that, The signal module is used to transmit signals at a preset frequency, and the length of the slot antenna is 1 / 2 to 1 / 8 of the wavelength corresponding to the preset frequency.

3. The mouse device according to claim 2, characterized in that, The length of the radiating antenna is less than the length of the slot antenna.

4. The mouse device according to claim 1, characterized in that, The width of the radiating antenna is between 25% and 200% of the width of the slot antenna.

5. The mouse device according to claim 1, characterized in that, The radiating antenna is spaced apart from the slot antenna along a thickness direction, and the slot antenna has a shielding area corresponding to the radiating antenna along the thickness direction; wherein the distance between the shielding area and the slot of the slot antenna is greater than or equal to 50% of the length of the slot antenna.

6. The mouse device according to claim 5, characterized in that, The radiating antenna has: A transverse segment, corresponding to the shielding area along the thickness direction; A first line segment, connected to one end of the cross segment and connected to the signal transceiver; and A second line segment is connected to the other end of the cross segment, and the length of the second line segment is less than or equal to 20 millimeters.

7. The mouse device according to claim 6, characterized in that, The first line segment has a feed point connected to the signal transceiver, and the signal module includes at least one matching element connected to the portion of the first line segment between the feed point and the cross segment.

8. The mouse device according to claim 1, characterized in that, The slot antenna has: A first longitudinal segment is formed by extending from the aforementioned front edge; A transverse segment, one end of which is connected to the first longitudinal segment, and the transverse segment and the first longitudinal segment together form a notch; and A second longitudinal segment is connected to the other end of the transverse segment; wherein the radiating antenna is adjacent to and spaced apart from the second longitudinal segment.

9. The mouse device according to claim 8, characterized in that, The mouse device includes an electrical connector mounted on the circuit board, and at least a portion of the electrical connector is located within the recess.

10. The mouse device according to claim 1, characterized in that, The signal module includes at least one matching element electrically coupled to the radiating antenna.

11. The mouse device according to claim 1, characterized in that, The radiating antenna can form a directional signal by coupling to the slot antenna; the mouse device includes an adapter and the adapter is disposed in front of the front end of the housing.

12. The mouse device according to claim 1, characterized in that, The circuit board includes a board body, and the ground layer is disposed on the board body. The board body has a through slot corresponding to the slot antenna. The mouse device includes a roller pivotally connected to the housing, and the roller passes through the slot antenna and the through slot.

13. A directional antenna device, characterized in that, The directional antenna device includes: A ground plane having a front edge, and the ground plane being recessed from the front edge to form a slot antenna; and A signal module is disposed corresponding to the ground plane, and the signal module includes: A radiating antenna, spaced apart from the slot antenna; wherein the radiating antenna is projected onto a projection area formed by its orthographic projection onto the ground plane, which is orthogonal to the slot antenna; and A transceiver is connected to the radiating antenna to transmit and receive signals to the radiating antenna, so that the radiating antenna is coupled to the slot antenna to form a directional signal.

14. The directional antenna device according to claim 13, characterized in that, The signal module is used to transmit signals at a preset frequency, and the length of the slot antenna is 1 / 2 to 1 / 8 of the wavelength corresponding to the preset frequency.

15. The directional antenna device according to claim 13, characterized in that, The length of the radiating antenna is less than the length of the slot antenna.

16. The directional antenna device according to claim 13, characterized in that, The radiating antenna is spaced apart from the slot antenna along a thickness direction, and the slot antenna has a shielding area corresponding to the radiating antenna along the thickness direction; wherein the distance between the shielding area and the slot of the slot antenna is greater than or equal to 50% of the length of the slot antenna.

17. The directional antenna device according to claim 16, characterized in that, The radiating antenna has: A transverse segment, corresponding to the shielding area along the thickness direction; A first line segment, connected to one end of the cross segment and connected to the signal transceiver; and A second line segment is connected to the other end of the cross segment, and the length of the second line segment is less than or equal to 20 millimeters.

18. The directional antenna device according to claim 17, characterized in that, The first line segment has a feed point connected to the signal transceiver, and the signal module includes at least one matching element connected to the portion of the first line segment between the feed point and the cross segment.

19. The directional antenna device according to claim 13, characterized in that, The slot antenna has: A first longitudinal segment is formed by extending from the aforementioned front edge; A transverse segment, one end of which is connected to the first longitudinal segment, and the transverse segment and the first longitudinal segment together form a notch; and A second longitudinal segment is connected to the other end of the transverse segment; wherein the radiating antenna is adjacent to and spaced apart from the second longitudinal segment.

20. A directional antenna device, characterized in that, The directional antenna device includes: A grounding layer having a leading edge, and the grounding layer having: A slotted antenna is formed by recessing from the front end edge; and A wire slot is connected to the slotted antenna, and the major axis of the wire slot is orthogonal to the major axis of the slotted antenna; and A signal module is disposed corresponding to the ground plane, and the signal module includes: A radiating antenna is located within the slot; wherein the major axis of the radiating antenna is orthogonal to the major axis of the slotted antenna; and A transceiver is connected to the radiating antenna to transmit and receive signals to the radiating antenna, so that the radiating antenna is coupled to the slot antenna to form a directional signal.

Images