CN221226558U

CN221226558U - Wearable device

Info

Publication number: CN221226558U
Application number: CN202322806780.6U
Authority: CN
Inventors: 曾怡菱; 蔡谨隆; 洪崇庭; 张凯翔; 赵育晨
Original assignee: Quanta Computer Inc
Current assignee: Quanta Computer Inc
Priority date: 2023-10-19
Filing date: 2023-10-19
Publication date: 2024-06-25
Anticipated expiration: 2033-10-19

Abstract

A wearable device, comprising: a first radiating metal portion, a second radiating metal portion, a grounding metal portion, a third radiating metal portion, and a carrier element. The first radiating metal portion is coupled to a positive feed point. The second radiation metal portion is coupled to the positive feed point. The grounding metal portion is coupled to a negative feed point, wherein the negative feed point corresponds to the positive feed point. The third radiating metal portion is adjacent to the grounding metal portion, wherein a coupling gap is formed between the third radiating metal portion and the grounding metal portion. The first radiating metal portion, the second radiating metal portion, the grounding metal portion and the third radiating metal portion are all disposed on the carrier element. The first radiating metal portion, the second radiating metal portion, the grounding metal portion, and the third radiating metal portion may together form an antenna structure.

Description

Wearable device

Technical Field

The present utility model relates to a wearable device, and more particularly, to a wearable device and an antenna structure (Antenna Structure) thereof.

Background

With the development of mobile communication technology, mobile devices are becoming more common in recent years, and common examples include: portable computers, mobile phones, multimedia players, and other portable electronic devices with mixed functionality. To meet the needs of people, mobile devices often have wireless communication functions. Some cover long-range wireless communication ranges, such as: mobile phones use 2G, 3G, LTE (Long Term Evolution) systems and their frequency bands of 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz, and 2500MHz for communication, and some cover short range wireless communication ranges, such as: wi-Fi, bluetooth systems use the frequency bands of 2.4GHz, 5.2GHz, and 5.8GHz for communication.

Depending on the research direction of the various brands of factories, the next generation of emerging mobile devices will likely be "wearable devices (Wearable Device"). For example watches, glasses and even clothing on the body, have the opportunity to have wireless communication in the future. However, taking glasses in wearable devices as an example, the internal space is very small and insufficient to accommodate an antenna for wireless communication. This will be a great challenge for antenna designers.

Disclosure of utility model

In a preferred embodiment, the present utility model provides a wearable device, comprising: a first radiating metal portion coupled to a positive feed point; a second radiating metal portion coupled to the positive feed point; a grounding metal portion coupled to a negative feed-in point, wherein the negative feed-in point corresponds to the positive feed-in point; a third radiating metal portion adjacent to the grounding metal portion, wherein a coupling gap is formed between the third radiating metal portion and the grounding metal portion; the first radiating metal part, the second radiating metal part, the grounding metal part and the third radiating metal part are all arranged on the carrier element; wherein the first radiating metal portion, the second radiating metal portion, the grounding metal portion, and the third radiating metal portion together form an antenna structure.

In some embodiments, the wearable device is an intelligent glasses with wireless communication function.

In some embodiments, the first radiating metal portion and the second radiating metal portion are implemented in a nose bridge element of the smart glasses.

In some embodiments, the carrier element is implemented in a non-conductive frame of the smart glasses.

In some embodiments, the combination of the first radiating metal portion and the second radiating metal portion is in an inverted U shape, and the third radiating metal portion is in a cross bar shape of unequal widths.

In some embodiments, the antenna structure covers at least one operating band, and the operating band is between 2400MHz and 2500 MHz.

In some embodiments, the length of the first radiating metal portion is approximately equal to 0.25 times the wavelength of the operating band.

In some embodiments, the length of the second radiating metal portion is approximately equal to 0.25 times the wavelength of the operating band.

In some embodiments, the length of the third radiating metal portion is approximately equal to 0.5 times the wavelength of the operating band.

In some embodiments, the width of the coupling gap is between 2mm and 5mm.

Drawings

Fig. 1 is a perspective view showing all elements of a wearable device according to an embodiment of the utility model.

Fig. 2 is a perspective view of a part of elements of the wearable device according to an embodiment of the utility model.

Fig. 3 is a perspective view showing another part of elements of the wearable device according to an embodiment of the utility model.

Fig. 4 is a voltage standing wave ratio diagram showing an antenna structure of a wearable device according to an embodiment of the utility model.

Description of the reference numerals

100 Wearable device

110 First radiating metal portion

111 First end of first radiating metal portion

112 Second end of the first radiating metal portion

117 Open pore

120 Second radiating metal portion

121 First end of second radiating metal portion

122 Second end of the second radiating metal portion

130 Grounding metal portion

140 Third radiating metal portion

141 First end of third radiating metal portion

142 Second end of the third radiating metal portion

145 A central widened portion of the third radiating metal portion

150 Carrier element

FB1 operating band

FN: negative feed point

FP positive feed point

GC1 coupling gap

L1, L2, L3, LG: length

W1, W2, WG: width

Detailed Description

The present utility model will be described in more detail with reference to the drawings, wherein the utility model is shown in the drawings.

Certain terms are used throughout the description and claims to refer to particular components. Those skilled in the art will appreciate that a hardware manufacturer may refer to the same element by different names. The description and claims do not take the form of an element differentiated by name, but rather by functional differences. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The term "substantially" means that within an acceptable error range, a person skilled in the art can solve the above-mentioned technical problem within a certain error range, and achieve the above-mentioned basic technical effect. In addition, the term "coupled" in this specification includes any direct or indirect electrical connection. Accordingly, if a first device couples to a second device, that connection may be through a direct electrical connection, or through an indirect electrical connection via other devices and connections.

The following disclosure provides many different embodiments, or examples, for implementing different features of the disclosure. The following disclosure describes specific examples of various components and arrangements thereof to simplify the description. Of course, these specific examples are not intended to be limiting. For example, if the disclosure describes a first feature being formed on or over a second feature, that means that it may include embodiments in which the first feature is in direct contact with the second feature, and that additional features may be formed between the first feature and the second feature, such that the first feature and the second feature may not be in direct contact. In addition, the following disclosure may repeat reference numerals and/or letters in the various examples. These repetition are for the purpose of simplicity and clarity and does not in itself dictate a particular relationship between the various embodiments and/or configurations discussed.

Furthermore, it is used in relation to space. Such as "below" …, "below" lower "upper" higher "and the like, are used for convenience in describing the relationship between one element or feature and another element(s) or feature in the figures. In addition to the orientations depicted in the drawings, these spatially relative terms are intended to encompass different orientations of the device in use or operation. The device may be turned to a different orientation (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 is a perspective view showing all the elements of a wearable device (Wearable Device) 100 according to an embodiment of the present utility model. Fig. 2 is a perspective view of a part of components of the wearable device 100 according to an embodiment of the utility model. Fig. 3 is a perspective view showing another part of the components of the wearable device 100 according to an embodiment of the utility model. Please refer to fig. 1, 2, and 3 together. It should be noted that, in order to make the reader easier to understand the present utility model, some elements are omitted and not shown in fig. 2 and 3. In the embodiments of fig. 1, 2 and 3, the wearable device 100 may be an intelligent glasses (SMART GLASSES) with wireless communication (Wireless Communication) function, but is not limited thereto.

In detail, the wearable device 100 includes: a first radiating metal portion (Radiation METAL ELEMENT) 110, a second radiating metal portion 120, a Ground metal portion (Ground METAL ELEMENT) 130, a third radiating metal portion 140, and a carrier element (CARRIER ELEMENT) 150. For example, the first radiating metal portion 110, the second radiating metal portion 120, the ground metal portion 130, and the third radiating metal portion 140 may be made of copper, silver, aluminum, iron, or an alloy thereof. Alternatively, the carrier member 150 may be made of a non-conductive material, such as: and (5) plastic materials. It should be understood that, although not shown in fig. 1, 2, and 3, the wearable device 100 may further include other elements, such as: a Processor, a Speaker, an image pickup device CAMERA ELEMENT, or a Battery device.

For example, the combination of the first radiating metal portion 110 and the second radiating metal portion 120 may generally exhibit an inverted U-shape. In detail, the first radiating metal portion 110 has a first End 111 and a second End 112, wherein the first End 111 of the first radiating metal portion 110 is coupled to a positive feed point (Positive Feeding Point) FP, and the second End 112 of the first radiating metal portion 110 is an Open End (Open End). In some embodiments, the first radiating metal portion 110 may further have an Opening 117, which may be adjacent to the second end 112 of the first radiating metal portion 110. It should be noted that the term "adjacent" or "adjacent" in the present specification may refer to the corresponding elements having a distance smaller than a predetermined distance (e.g., 10mm or less), and may include the case where the corresponding elements are in direct contact with each other (i.e., the distance is reduced to 0).

In addition, the second radiating metal portion 120 has a first end 121 and a second end 122, wherein the first end 121 of the second radiating metal portion 120 is also coupled to the positive feed point FP, and the second end 122 of the second radiating metal portion 120 is an open end. In some embodiments, the second radiating metal portion 120 may further have another opening (not shown) that may be adjacent to the second end 122 of the second radiating metal portion 120.

In some embodiments, the first radiating metal portion 110 and the second radiating metal portion 120 may be implemented in a Nose bridge element (Nose Support Element) of smart glasses, wherein the openings (e.g., the opening 117) may each be used to receive a Nose bridge Pad (Nose Support Pad), but is not limited thereto.

For example, the ground metal portion 130 may substantially take on a rectangular shape or a square shape, wherein the ground metal portion 130 may be adjacent to the first and second radiating metal portions 110 and 120. The grounding metal portion 130 is coupled to a negative feed point FN, wherein the negative feed point FN may correspond to the positive feed point FP. In some embodiments, the wearable device 100 further includes a Signal Source (not shown). In detail, the signal source may be a Radio Frequency (RF) module, wherein a positive electrode (Positive Electrode) of the signal source may be coupled to the positive feed point FP, and a negative electrode (Negative Electrode) of the signal source may be coupled to the negative feed point FN.

For example, the third radiating metal portion 140 may substantially take the shape of a transverse bar of unequal width. In detail, the third radiating metal portion 140 has a first end 141 and a second end 142, which may be two open ends and may extend in opposite directions and away from each other. In some embodiments, the third radiating metal Portion 140 further includes a central widened Portion (CENTRAL WIDENING Portion) 145. The third radiating metal portion 140 is adjacent to the grounding metal portion 130, wherein a Coupling Gap (GC 1) may be formed between the central widened portion 145 of the third radiating metal portion 140 and the grounding metal portion 130. In some embodiments, the ground metal portion 130 has a vertical projection (Vertical Projection) on the third radiating metal portion 140, wherein the vertical projection at least partially overlaps the central widened portion 145 of the third radiating metal portion 140.

In some embodiments, the carrier element 150 may be implemented in a non-conductive frame of smart glasses. The shape and style of the carrier member 150 is not particularly limited in the present utility model. The first radiating metal portion 110, the second radiating metal portion 120, the grounding metal portion 130, and the third radiating metal portion 140 can be disposed on the carrier element 150. In other embodiments, the carrier member 150 may further include a frame member (not shown), wherein the third radiation metal portion 140 may be formed on the frame member by using a laser (LASER DIRECT Structuring, LDS) technique.

In the preferred embodiment, the first radiating metal portion 110, the second radiating metal portion 120, the grounding metal portion 130, and the third radiating metal portion 140 together form an antenna structure (Antenna Structure) of the wearable device 100, so that the wearable device 100 can provide the function of wireless communication (Wireless Communication).

Fig. 4 is a Voltage Standing Wave Ratio (VSWR) diagram of an antenna structure of the wearable device 100 according to an embodiment of the utility model, wherein a horizontal axis represents an operating frequency (MHz) and a vertical axis represents the Voltage standing wave Ratio. According to the measurement result of fig. 4, the antenna structure of the wearable device 100 may cover at least an operation band (Operational Frequency Band) FB1. For example, the aforementioned operating band FB1 may be between 2400MHz and 2500 MHz. Thus, the wearable device 100 will support at least WLAN (Wireless Local Area Networks) 2.4.4 GHz of broadband operation. However, the present utility model is not limited thereto. In other embodiments, the aforementioned operation band FB1 may further comprise a frequency interval (Frequency Interval) between 5150MHz and 5850MHz and another frequency interval between 5925MHz and 7125MHz, so that the wearable device 100 can support the Wi-Fi 6E broadband operation.

In some embodiments, the principle of operation of the antenna structure of the wearable device 100 may be as follows. Both the first radiating metal portion 110 and the second radiating metal portion 120 can excite the aforementioned operating band FB1. In addition, the third radiating metal portion 140 may be excited by the coupling of the grounding metal portion 130. According to the actual measurement result, the addition of the third radiating metal portion 140 helps to fine tune the impedance matching (IMPEDANCE MATCHING) of the antenna structure of the wearable device 100, so that the operation bandwidth (Operational Bandwidth) thereof can be greatly increased. It should be noted that, since the proposed antenna structure can be well integrated with the wearable device 100 itself, the overall size of the wearable device 100 of the present utility model can be further reduced.

In some embodiments, the dimensions of the elements of wearable device 100 may be as follows. The length L1 of the first radiating metal portion 110 may be substantially equal to 0.25 times wavelength (λ/4) of the operating band FB1 of the antenna structure of the wearable device 100. The length L2 of the second radiating metal portion 120 may be substantially equal to 0.25 times wavelength (λ/4) of the operating band FB1 of the antenna structure of the wearable device 100. The length LG of the ground metal portion 130 may be between 11mm and 15mm, for example: about 13mm. The width WG of the ground metal 130 may be between 8mm and 12mm, for example: about 10mm. The length L3 of the third radiating metal portion 140 may be substantially equal to 0.5 times the wavelength (λ/2) of the operating band FB1 of the antenna structure of the wearable device 100. In the center of the third radiation metal portion 140, the width W2 of the central widened portion 145 may be at least 3 times or more the width W1 of the remaining portion (i.e., W2. Gtoreq.3.W1). The coupling gap GC1 may have a width between 2mm and 5mm. The above range of element sizes is obtained according to the results of multiple experiments, which helps to optimize the operation bandwidth and impedance matching of the antenna structure of the wearable device 100.

The utility model provides a novel wearable device. Compared with the traditional design mode, the device has at least the following advantages: (1) cover broadband operation; (2) integrating the antenna structure; (3) reducing the overall antenna size; and (4) lower overall manufacturing costs. Therefore, the utility model is very suitable for being applied to various miniaturized devices with communication functions.

It should be noted that the device size, device shape, and frequency range are not limitations of the present utility model. The antenna designer may adjust these settings according to different needs. The wearable device of the present utility model is not limited to the states illustrated in fig. 1-4. The present utility model may include only any one or more of the features of any one or more of the embodiments of figures 1-4. In other words, not all of the illustrated features need be implemented in the wearable device of the present utility model at the same time.

Ordinal numbers such as "first," "second," "third," and the like in the description and in the claims are used for distinguishing between two different elements having the same name and not necessarily for describing a sequential or chronological order.

While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A wearable device, comprising:

a first radiating metal portion coupled to a positive feed point;

a second radiating metal portion coupled to the positive feed point;

a grounding metal portion coupled to a negative feed-in point, wherein the negative feed-in point corresponds to the positive feed-in point;

A third radiating metal portion adjacent to the grounding metal portion, wherein a coupling gap is formed between the third radiating metal portion and the grounding metal portion; and

A carrier element, wherein the first radiating metal portion, the second radiating metal portion, the grounding metal portion, and the third radiating metal portion are all disposed on the carrier element;

Wherein the first radiating metal portion, the second radiating metal portion, the grounding metal portion, and the third radiating metal portion together form an antenna structure.

2. The wearable device of claim 1, wherein the wearable device is an intelligent glasses with wireless communication function.

3. The wearable device of claim 2, wherein the first radiating metal portion and the second radiating metal portion are implemented on a nose bridge element of the smart glasses.

4. The wearable device of claim 2, wherein the carrier element is implemented in a non-conductive frame of the smart glasses.

5. The wearable device of claim 1, wherein the combination of the first radiating metal portion and the second radiating metal portion is in an inverted U-shape and the third radiating metal portion is in a cross bar shape of unequal width.

6. The wearable device of claim 1, wherein the antenna structure covers at least one operating band between 2400MHz and 2500 MHz.

7. The wearable device of claim 6, wherein the length of the first radiating metal portion is approximately equal to 0.25 times the wavelength of the operating band.

8. The wearable device of claim 6, wherein the length of the second radiating metal portion is approximately equal to 0.25 times the wavelength of the operating band.

9. The wearable device of claim 6, wherein the length of the third radiating metal portion is approximately equal to 0.5 times the wavelength of the operating band.

10. The wearable device of claim 1, wherein the width of the coupling gap is between 2mm and 5mm.