Wearable device

Abstract

The utility model provides a wearable device. The wearable device comprises a first radiation part, a second radiation part, a third radiation part and a carrier assembly, the first radiation part is provided with a feed-in point. The second radiation part is coupled to the first radiation part. The third radiation part is coupled to the second radiation part. The first radiation part, the second radiation part and the third radiation part can be arranged on the carrier assembly, wherein the first radiation part, the second radiation part and the third radiation part can form an antenna structure together.

Description

TECHNICAL FIELD

[0001] The present utility model relates to a wearable device, in particular to a wearable device and an antenna structure thereof. BACKGROUND

[0002] With the development of mobile communication technology, mobile devices have become increasingly popular in recent years. Common examples include laptop computers, mobile phones, multimedia players, and other hybrid portable electronic devices. To meet the needs of people, mobile devices usually have wireless communication functions. Some cover long-range wireless communication ranges, such as mobile phones using 2G, 3G, LTE (Long Term Evolution) systems and their use of 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz and 2500MHz frequency bands for communication. Some cover short-range wireless communication ranges, such as Wi-Fi, Bluetooth systems using 2.4GHz, 5.2GHz and 5.8GHz frequency bands for communication.

[0003] According to the research direction of each brand factory, the next generation of emerging mobile devices may be "wearable devices (Wearable Device)". For example, watches, glasses, and even clothes on the body have the opportunity to have wireless communication functions in the future. However, taking glasses as an example in wearable devices, the internal space is very small and not enough to accommodate the antenna for wireless communication. This will be a big challenge for antenna designers. SUMMARY

[0004] In a preferred embodiment, the present utility model provides a wearable device, comprising: a first radiation part having a feed-in point; a second radiation part coupled to the first radiation part; a third radiation part coupled to the second radiation part; and a carrier assembly, wherein the first radiation part, the second radiation part, and the third radiation part are all disposed on the carrier assembly; wherein the first radiation part, the second radiation part, and the third radiation part collectively form an antenna structure.

[0005] In some embodiments, the wearable device is a smart glass with wireless communication function.

[0006] In some embodiments, the carrier assembly is a non-conductive leg of the smart glass.

[0007] In some embodiments, the third radiation part is substantially parallel to the first radiation part.

[0008] In some embodiments, the second radiating portion is substantially perpendicular to both the first radiating portion and the third radiating portion.

[0009] In some embodiments, the length of the second radiating portion is greater than the length of the first radiating portion.

[0010] In some embodiments, the length of the first radiating portion is greater than the length of the third radiating portion.

[0011] In some embodiments, the antenna structure covers an operating frequency band, and the operating frequency band is between 2402 MHz and 2482 MHz.

[0012] In some embodiments, the total length of the first radiating portion, the second radiating portion, and the third radiating portion is substantially equal to 0.25 times the wavelength of the operating frequency band.

[0013] In some embodiments, the wearable device further comprises a main circuit board including a communication module, wherein the communication module is coupled to the feed point; and a screw assembly for fixing the main circuit board, wherein the distance between the antenna structure and the screw assembly is between 0.1 mm and 0.125 mm. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, in which:

[0015] Figure 1 FIG. 1 is a front view showing a wearable device according to an embodiment of the present application.

[0016] Figure 2 FIG. 2 is a voltage standing wave ratio (VSWR) diagram showing an antenna structure of the wearable device according to an embodiment of the present application.

[0017] Figure 3 FIG. 3 is a perspective view showing the wearable device according to an embodiment of the present application.

[0018] Figure 4 FIG. 4 is a partial view showing the wearable device according to an embodiment of the present application.

[0019] Figure 5 FIG. 5 is another partial view showing the wearable device according to an embodiment of the present application.

[0020] REFERENCE NUMERALS:

[0021] 100, 300: wearable device

[0022] 110: first radiating portion

[0023] 111: first end of first radiating section

[0024] 112: second end of first radiating section

[0025] 120: second radiating section

[0026] 121: first end of second radiating section

[0027] 122: second end of second radiating section

[0028] 130: third radiating section

[0029] 131: first end of third radiating section

[0030] 132: second end of third radiating section

[0031] 140, 340: carrier assembly

[0032] 150, 350: antenna structure

[0033] 190: signal source

[0034] 360: screw assembly

[0035] 370: main circuit board

[0036] 380: metal spring

[0037] 390: communication module

[0038] D1: distance

[0039] FB: operating frequency band

[0040] FP1, FP2: feed point

[0041] L1, L2, L3, LT: length

[0042] W1, W2, W3: width DETAILED DESCRIPTION

[0043] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the following specific embodiments of the utility model are taken as an example, and the accompanying drawings are used for detailed description as follows.

[0044] Certain terms are used in this specification and the claims to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and the claims do not distinguish components by differences in name, but by differences in function. The terms "comprising" and "including" used throughout this specification and the claims are open-ended and should be interpreted as "including but not limited to". The term "generally" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and achieve the basic technical effect within a certain margin of error. Furthermore, the term "coupled" in this specification includes any direct and indirect electrical connection means. Therefore, if a first device is described as coupled to a second device, it means that the first device can be directly electrically connected to the second device, or indirectly electrically connected to the second device via other devices or connection means.

[0045] The following disclosure provides many different embodiments or examples to implement the various features of this invention. The following disclosure describes specific examples of the various components and their arrangements for simplification. Of course, these specific examples are not intended to be limiting. For example, if this specification describes a first feature formed on or above a second feature, it indicates that it may include embodiments where the first and second features are in direct contact, or embodiments where an additional feature is formed between the first and second features, so that the first and second features may not be in direct contact. Furthermore, the same reference numerals and / or designations may be repeated in different examples of the following specification. These repetitions are for simplification and clarity and are not intended to limit any specific relationship between the different embodiments and / or structures discussed.

[0046] Furthermore, the use of spatially related terms, such as "below," "below," "lower," "above," "higher," and similar terms, is intended to facilitate the description of the relationship between one component or feature in the icon and another component(s). In addition to the orientations shown in the accompanying drawings, these spatially related terms are intended to encompass different orientations of the device in use or operation. The device may be turned to different orientations (rotated 90 degrees or other orientations), and the spatially related terms used herein can be interpreted in the same way.

[0047] Figure 1 This is a front view showing a wearable device 100 according to an embodiment of the present invention. Figure 1As shown, the wearable device 100 includes at least a first radiation element 110, a second radiation element 120, a third radiation element 130, and a carrier element 140. The first radiation element 110, the second radiation element 120, and the third radiation element 130 can be made of a metal material, such as copper, silver, aluminum, iron, or an alloy thereof. The carrier element 140 can be made of a non-conductive material, such as a plastic material. It should be understood that although not shown in the drawings, the wearable device 100 can include other components, such as a processor, a speaker, a camera element, or a battery element. Figure 1 As shown, the wearable device 100 includes at least a first radiation element 110, a second radiation element 120, a third radiation element 130, and a carrier element 140. The first radiation element 110, the second radiation element 120, and the third radiation element 130 can be made of a metal material, such as copper, silver, aluminum, iron, or an alloy thereof. The carrier element 140 can be made of a non-conductive material, such as a plastic material. It should be understood that although not shown in the drawings, the wearable device 100 can include other components, such as a processor, a speaker, a camera element, or a battery element.

[0048] For example, the first radiation element 110 can have a substantially medium straight strip shape. In detail, the first radiation element 110 has a first end 111 and a second end 112. A feeding point FP1 is located at the first end 111 of the first radiation element 110. The feeding point FP1 can be coupled to a signal source 190, which can be a radio frequency (RF) module or a communication module.

[0049] For example, the second radiation element 120 can have a substantially longer straight strip shape. In detail, the second radiation element 120 has a first end 121 and a second end 122. The first end 121 of the second radiation element 120 is coupled to the second end 112 of the first radiation element 110. In some embodiments, the second radiation element 120 is substantially perpendicular to the first radiation element 110.

[0050] For example, the third radiating portion 130 can generally present a short straight bar shape, wherein the length L1 of the first radiating portion 110 can also be greater than the length L3 of the third radiating portion 130. In detail, the third radiating portion 130 has a first end 131 and a second end 132, wherein the first end 131 of the third radiating portion 130 is coupled to the second end 122 of the second radiating portion 120, and the second end 132 of the third radiating portion 130 is an open end. In some embodiments, the third radiating portion 130 is generally perpendicular to the second radiating portion 120, and the third radiating portion 130 is also generally parallel to the first radiating portion 110. In some embodiments, the third radiating portion 130 can be coupled to the first radiating portion 110 via the second radiating portion 120, wherein the combination of the first radiating portion 110, the second radiating portion 120, and the third radiating portion 130 can also generally present an inverted J shape, but is not limited thereto.

[0051] The shape and pattern of the carrier assembly 140 are not particularly limited in the present application. The first radiating portion 110, the second radiating portion 120, and the third radiating portion 130 can all be disposed on the same surface of the carrier assembly 140. For example, the first radiating portion 110, the second radiating portion 120, and the third radiating portion 130 can all be formed on the carrier assembly 140 by using a laser direct structuring (LDS) technique.

[0052] In preferred embodiments, the first radiating portion 110, the second radiating portion 120, and the third radiating portion 130 can collectively form an antenna structure 150 of the wearable device 100, so that the wearable device 100 can provide a wireless communication function.

[0053] Figure 2 is a voltage standing wave ratio (VSWR) diagram showing the antenna structure 150 of the wearable device 100 according to an embodiment of the present application, wherein the horizontal axis represents the operating frequency (MHz), and the vertical axis represents the voltage standing wave ratio. According to the VSWR diagram, the wearable device 100 can provide a wireless communication function. Figure 2The antenna structure 150 of the wearable device 100 can cover an operational frequency band FB according to the measurement results. For example, the aforementioned operational frequency band FB can be between 2402 MHz and 2482 MHz. Therefore, the wearable device 100 will at least support the broadband operation of Bluetooth and WLAN (Wireless Local Area Networks) 2.4 GHz. However, the present application is not limited thereto. In other embodiments, the aforementioned operational frequency band FB can also include a frequency interval between 5150 MHz and 5850 MHz, and another frequency interval between 5925 MHz and 7125 MHz, so that the wearable device 100 can support the broadband operation of Wi-Fi 6E.

[0054] In some embodiments, the component sizes of the wearable device 100 can be as follows. The total length LT of the first radiation portion 110, the second radiation portion 120, and the third radiation portion 130 can be approximately equal to 0.25 times the wavelength (λ / 4) of the operational frequency band FB of the antenna structure 150 of the wearable device 100. The width W1 of the first radiation portion 110 can be between 1.5 mm and 2.5 mm, for example, about 2 mm. The length L2 of the second radiation portion 120 can be between 10.5 mm and 11.5 mm, for example, about 11 mm. The width W2 of the second radiation portion 120 can be between 1.25 mm and 1.75 mm, for example, about 1.5 mm. The width W3 of the third radiation portion 130 can be between 2.75 mm and 3.25 mm, for example, about 3 mm. The above ranges of component sizes are derived from multiple experimental results, which help to optimize the operational bandwidth and impedance matching of the antenna structure 150 of the wearable device 100.

[0055] The following embodiments will introduce different configurations and detailed structural features of the wearable device 100. It must be understood that these drawings and descriptions are only examples and are not used to limit the scope of the patent of the present application.

[0056] Figure 3 is a perspective view showing a wearable device 300 according to an embodiment of the present application. Figure 4 is a partial view showing the wearable device 300 according to an embodiment of the present application. Figure 5 is another partial view showing the wearable device 300 according to an embodiment of the present application. Please refer to Figure 3 , 45. It should be noted that, in order to make the present invention easier for the reader to understand, some components have been omitted and are not shown. Figure 4 , 5 In the middle. Figure 3 , 4 In embodiments 5, the wearable device 300 may be a smart glasses with wireless communication capabilities, and a carrier component 340 of the wearable device 300 may be a nonconductive temple of the smart glasses. Additionally, an antenna structure 350 of the wearable device 300 may be disposed on an inner surface of the carrier component 340, wherein this inner surface may be a curved surface, but is not limited thereto.

[0057] In some embodiments, the wearable device 300 further includes a screw element 360, a main circuit board 370, and a metal spring 380. The screw element 360 is used to secure the main circuit board 370. The main circuit board 370 includes a communication module 390, which may be a radio frequency module. The communication module 390 may be coupled to a feed point FP2 of the antenna structure 350 via the metal spring 380, so that the antenna structure 350 can be excited by the communication module 390. The screw element 360 is adjacent to the antenna structure 350. It should be noted that the terms "adjacent" or "adjacent" in this specification may refer to a distance between two corresponding components being less than a predetermined distance (e.g., 5 mm or less), but generally does not include the case where the two corresponding components are in direct contact with each other (i.e., the aforementioned distance is shortened to 0). For example, the distance D1 between the antenna structure 350 (or any of its radiating parts) and the screw assembly 360 can be between 0.1 mm and 0.125 mm. According to actual measurements, the aforementioned range of distance D1 helps prevent the presence of the screw assembly 360 from having too much of a negative impact on the radiation performance of the antenna structure 350, and it also helps the antenna structure 350 to be well integrated with the wearable device 300. Figure 3 , 4 The remaining features of the wearable device 300 are all the same as those of the 5. Figure 1 The wearable device 100 is similar, so both embodiments can achieve similar operational effects.

[0058] This invention proposes a novel wearable device. Compared to traditional designs, it offers advantages such as wideband operation, integrated antenna structure, reduced overall antenna size, and lower overall manufacturing costs. Therefore, this invention is well-suited for application in various miniaturized devices with communication functions.

[0059] It is worth noting that the above-mentioned component size, component shape, and frequency range are not the limiting conditions of the present application. Antenna designers can adjust these settings according to different needs. The wearable device of the present application is not limited to the state shown in the figures. The present application can only include any one or more features of any one or more embodiments. In other words, not all features of the icons must be implemented in the wearable device of the present application at the same time. Figures 1-5 The present application can only include any one or more features of any one or more embodiments. Figures 1-5 In other words, not all features of the icons must be implemented in the wearable device of the present application at the same time.

[0060] In the present application, ordinal numbers such as "first", "second", "third", etc. do not have any order relationship with each other, and are only used to distinguish different components with the same name.

[0061] Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application, and any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application is defined by the claims.

Claims

1. A wearable device, characterized in that, include: A first radiating section has a feed point; A second radiating part is coupled to the first radiating part; A third radiating section is coupled to the second radiating section; as well as A carrier assembly, wherein the first radiating part, the second radiating part, and the third radiating part are all disposed on the carrier assembly; The first radiating part, the second radiating part, and the third radiating part together form an antenna structure.

2. The wearable device as described in claim 1, characterized in that, This wearable device is a smart pair of glasses with wireless communication capabilities.

3. The wearable device as described in claim 2, characterized in that, The carrier component is a non-conductive temple of the smart glasses.

4. The wearable device as described in claim 1, characterized in that, The third radiating part is approximately parallel to the first radiating part.

5. The wearable device as claimed in claim 1, characterized in that, The second radiating part is approximately perpendicular to both the first and third radiating parts.

6. The wearable device as claimed in claim 1, characterized in that, The length of the second radiating part is greater than the length of the first radiating part.

7. The wearable device as claimed in claim 1, characterized in that, The length of the first radiating part is greater than the length of the third radiating part.

8. The wearable device as claimed in claim 1, characterized in that, The antenna structure covers an operating frequency band between 2402MHz and 2482MHz.

9. The wearable device as claimed in claim 8, characterized in that, The total length of the first radiating section, the second radiating section, and the third radiating section is approximately equal to 0.25 times the wavelength of the operating frequency band.

10. The wearable device as claimed in claim 1, characterized in that, Including: A main circuit board includes a communication module, wherein the communication module is coupled to the feed point; as well as A screw assembly is used to secure the main circuit board, wherein the distance between the antenna structure and the screw assembly is between 0.1 mm and 0.125 mm.

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