Ultra-wideband antenna and wireless headset comprising an ultra-wideband antenna

Abstract

The present application provides an ultra-wideband antenna and a wireless headset comprising the same. The ultra-wideband antenna comprises a first part and a second part. The first part has at least two notches on one side edge. The second part is laterally adjacent to the first part and separated from the first part. The second part comprises a main body and an extension, one side edge of the main body is close to the at least two notches, and the other side edge of the main body is connected to the extension, wherein the included angle between the main body and the extension is between 85 degrees and 135 degrees.

Description

Technical Field

[0001] This invention relates to an ultra-wideband antenna and a wireless headset including the ultra-wideband antenna. Background Technology

[0002] Most commercially available wireless headphones currently operate in the 2.4GHz and 2.5GHz frequency bands. However, many other electronic products also use these frequency bands, making it easy for wireless headphones to interfere with other electronic devices. Summary of the Invention

[0003] The purpose of this invention is to provide an ultra-wideband antenna and a wireless headset including the ultra-wideband antenna, so as to solve at least one of the above-mentioned problems.

[0004] This invention provides an ultra-wideband (UWB) antenna for wireless headphones, comprising a first part and a second part. The first part has at least two slots on one side. The second part is laterally adjacent to and separate from the first part. The second part includes a main body and an extension, with one side of the main body close to the at least two slots, and the other side of the main body connected to the extension, wherein the included angle between the main body and the extension is between 85 degrees and 135 degrees.

[0005] In some embodiments, the main body has a rectangular portion and a hexagonal portion. One long side of the rectangular portion is close to the at least two slots, and the other long side of the rectangular portion is connected to the first bottom edge of the hexagonal portion. The second bottom edge of the hexagonal portion is connected to the extension. The first bottom edge and the second bottom edge are substantially parallel, and the length of the first bottom edge is less than the length of the second bottom edge.

[0006] In some embodiments, the length of the longer side of the rectangular portion is greater than the length of the first base side of the hexagonal portion and less than the length of the second base side of the hexagonal portion.

[0007] In some embodiments, the length-to-width ratio of each slot is between 1.5:1 and 5:1.

[0008] In some embodiments, the width of the main body is greater than the width of the extension.

[0009] In some embodiments, an ultra-wideband antenna is disposed within the headband of the wireless headphones.

[0010] In some embodiments, the first part is an arc-shaped plate.

[0011] In some embodiments, the ultra-wideband antenna is suitable for frequency bands between 6 GHz and 9 GHz.

[0012] The present invention also provides a wireless headset, comprising: a headband, two earcups, the aforementioned ultra-wideband antenna, a radio frequency module, and a motherboard. The headband is connected between the two earcups. The ultra-wideband antenna is disposed within the headband. The radio frequency module is disposed within the headband and electrically connected to the ultra-wideband antenna. The motherboard is disposed within one of the two earcups, and the radio frequency module is electrically connected to the motherboard.

[0013] In some embodiments, the headband portion has a top wall and a side wall connected to the top wall, the main body portions of the first portion and the second portion are adjacent to the top wall, and the extension portion of the second portion is adjacent to the side wall.

[0014] In some embodiments, the wireless headset further includes a coaxial cable, through which an ultra-wideband antenna and a radio frequency module are electrically connected.

[0015] In some embodiments, the ultra-wideband antenna is integrated with the radio frequency module.

[0016] In some embodiments, the wireless headset further includes at least one serial peripheral interface (SPI) line, through which the radio frequency module and the motherboard are electrically connected. Attached Figure Description

[0017] The invention will be best understood from the following description, which is taken in conjunction with the accompanying drawings. However, it should be understood that, according to industry practice, the various features are not necessarily drawn to scale. In fact, for clarity, the shapes of the various features may be appropriately adjusted, and the dimensions of the various features may be arbitrarily increased or decreased.

[0018] Figure 1 This is a perspective view of an ultra-wideband antenna for wireless headphones according to an embodiment of the present invention.

[0019] Figure 2 This is a top view schematic diagram of an ultra-wideband antenna for wireless headphones according to an embodiment of the present invention.

[0020] Figure 3 This is a perspective view of a wireless headset according to an embodiment of the present invention.

[0021] Figure 4 This is a perspective view of a portion of a wireless headset according to an embodiment of the present invention.

[0022] Figure 5 This is a perspective view of a portion of a wireless headset according to an embodiment of the present invention.

[0023] The attached figures are labeled as follows:

[0024] 10: Ultra-wideband antenna

[0025] 110: Part One

[0026] 110s: Side

[0027] 1101g, 1102g: Grooving

[0028] 120: Part Two

[0029] 122: Main body

[0030] 122a, 122s: Side

[0031] 1221: Rectangular section

[0032] 1221a, 1221s: Long side

[0033] 1222: Hexagonal section

[0034] 1222a: Second base edge

[0035] 1222s: First base edge

[0036] 124: Extension

[0037] 20: Headband

[0038] 20s: sidewall

[0039] 20t: Top wall

[0040] 30: Earcups

[0041] 40: Radio Frequency Module

[0042] 50: Motherboard

[0043] 60: Coaxial cable

[0044] 70: Sequence peripheral interface lines

[0045] a: angle

[0046] W1, W2: Width Detailed Implementation

[0047] The advantages and features of the present invention, as well as the methods of achieving them, will be more readily understood through a more detailed description with reference to exemplary embodiments and accompanying drawings. However, the invention may be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments provided will enable those skilled in the art to more thoroughly and completely convey the scope of the invention.

[0048] The spatial relative terms used in this document, such as "down" and "up," are for the convenience of describing the relative relationship between one element or feature and another in the accompanying drawings. The true meaning of these spatial relative terms includes other orientations. For example, when the accompanying drawings are rotated 180 degrees vertically, the relationship between one element and another may change from "down" to "up." The spatial relative descriptions used in this document should be interpreted in the same way.

[0049] As described in the prior art, most commercially available wireless headphones currently operate in the frequency band between 2.4 GHz and 2.5 GHz. However, many electronic products also use this frequency band, making it easy for wireless headphones to interfere with other electronic products. Accordingly, this invention provides an ultra-wideband (UWB) antenna for wireless headphones, applicable to the frequency band between 6 GHz and 9 GHz, thus solving the problem of easy interference between wireless headphones and other electronic products. Furthermore, because the ultra-wideband antenna of this invention operates in a higher frequency band, the transmission capacity can be significantly increased. Various embodiments of the ultra-wideband antenna of this invention will be described in detail below.

[0050] Figure 1 This is a perspective view of an ultra-wideband antenna for wireless headphones according to an embodiment of the present invention. Figure 2 This is a top view schematic diagram of an ultra-wideband antenna for wireless headphones according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, the ultra-wideband antenna 10 includes a first part 110 and a second part 120.

[0051] One side 110s of the first portion 110 has at least two slots 1101g and 1102g, which are spaced apart by a distance. In some embodiments, the slots 1101g and 1102g are rectangular, with a length-to-width ratio between 1.5:1 and 5:1. In some embodiments, the length of each of the slots 1101g and 1102g is between 1.0 mm and 2.5 mm, for example, 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, or any length between any two values. In some embodiments, the width of each of the slots 1101g and 1102g is between 0.5 mm and 1.5 mm, for example, 0.5 mm, 1.0 mm, 1.5 mm, or any width between any two values. However, the present invention is not limited to the foregoing embodiments, and the number, position, shape, and spacing between the slots can be appropriately adjusted according to actual needs.

[0052] The second portion 120 is laterally adjacent to the first portion 110, and the second portion 120 is separate from the first portion 110. The second portion 120 includes a main body 122 and an extension 124. One side 122s of the main body 122 is close to the at least two slots 1101g and 1102g, and the other side 122a of the main body 122 is connected to the extension 124. In some embodiments, the gap between the side 110s between the two slots 1101g and 1102g of the first portion 110 and the side 122s of the second portion 120 is the feed point of the ultra-wideband antenna.

[0053] like Figure 1 As shown, the included angle α between the main body 122 and the extension 124 is between 85 degrees and 135 degrees, for example, 85 degrees, 90 degrees, 95 degrees, 100 degrees, 105 degrees, 110 degrees, 115 degrees, 120 degrees, 125 degrees, 130 degrees, 135 degrees, or any angle between any two values. In some embodiments, the included angle α between the main body 122 and the extension 124 is between 90 degrees and 105 degrees. In some embodiments, the width W1 of the main body 122 is greater than the width W2 of the extension 124.

[0054] In some embodiments, the main body 122 has a rectangular portion 1221 and a polygonal portion. Figure 1 and 2 The polygonal portion is exemplified by hexagonal portion 1222; however, the invention is not limited thereto. In other embodiments, the polygonal portion may be, for example, trapezoidal, rectangular, pentagonal, or other suitable shapes. Figure 1 and 2 As shown, the long side 1221s of the rectangular portion 1221 is close to the at least two slots 1101g and 1102g. The other long side 1221a of the rectangular portion 1221 connects to the first bottom side 1222s of the hexagonal portion 1222, and the second bottom side 1222a of the hexagonal portion 1222 connects to the extension 124. In some embodiments, the first bottom side 1222s and the second bottom side 1222a are substantially parallel, and the length of the first bottom side 1222s is less than the length of the second bottom side 1222a. In some embodiments, the length of the long side 1221s and the other long side 1221a of the rectangular portion 1221 are greater than the length of the first bottom side 1222s of the hexagonal portion 1222 and less than the length of the second bottom side 1222a of the hexagonal portion 1222.

[0055] In some embodiments, the ultra-wideband antenna 10 is disposed within the headband of the wireless headphones. Specifically, the inventors have discovered that, compared to disposing the ultra-wideband antenna 10 within the earcups of the wireless headphones, disposing the ultra-wideband antenna 10 within the headband significantly increases the maximum transmission distance when pairing with a dongle located on a computer (e.g., a laptop). Furthermore, the maximum transmission distance is significantly increased when the headphones are facing the computer and rotated 90, 180, and 270 degrees clockwise. In some embodiments, with the ultra-wideband antenna 10 disposed within the headband of the wireless headphones, the maximum transmission distance when pairing with the dongle is between approximately 7.9 meters and approximately 13.5 meters. However, the invention is not limited to the aforementioned embodiments; disposing the ultra-wideband antenna 10 within the earcups of the wireless headphones is also feasible and also provides a certain maximum transmission distance.

[0056] In some embodiments, such as Figure 1 As shown, the first portion 110 is an arc-shaped plate, with its two wide edges slightly curved downwards to match the shape of the headband housing. However, the invention is not limited to the foregoing embodiments; in other embodiments, the first portion 110 may be a flat plate. In some embodiments, the main body 122 of the second portion 120 may be an arc-shaped plate or a flat plate.

[0057] The present invention also provides a wireless headset. Figure 3 This is a perspective view of a wireless headset according to an embodiment of the present invention. Figure 4 This is a perspective view of a portion of a wireless headset according to an embodiment of the present invention. Figure 5 This is a perspective view of a portion of a wireless headset according to an embodiment of the present invention. Figure 3 , 4 As shown in Figure 5, the wireless headset includes a headband 20, two earcups 30, the aforementioned ultra-wideband antenna 10, an RF module 40, and a motherboard 50. Figure 3 As shown, the headband 20 is connected between the two earmuffs 30.

[0058] like Figure 3 and Figure 4 As shown, the ultra-wideband antenna 10 is disposed within the headband portion 20. In some embodiments, such as Figure 3As shown, the headband portion 20 has a top wall 20t and a side wall 20s connecting the top wall 20t. The main body portion 122 of the first portion 110 and the second portion 120 is adjacent to the top wall 20t, and the extension portion 124 of the second portion 120 is adjacent to the side wall 20s. In some embodiments, the main body portion 122 of the first portion 110 and the second portion 120 is adhered to the top wall 20t by adhesive, and the extension portion 124 of the second portion 120 is adhered to the side wall 20s by adhesive.

[0059] like Figure 3 and Figure 4 As shown, the radio frequency module 40 is disposed within the headband portion 20 and is electrically connected to the ultra-wideband antenna 10. In some embodiments, such as Figure 4 As shown, the wireless headset also includes a coaxial cable 60, through which the ultra-wideband antenna 10 and the radio frequency module 40 are electrically connected. However, the present invention is not limited to the foregoing embodiment, and other suitable electrical connection elements may be used to replace the coaxial cable 60.

[0060] It is worth noting that, compared to placing the ultra-wideband antenna and RF module separately in the headband and earcups, some embodiments of the present invention place both the ultra-wideband antenna 10 and the RF module 40 within the headband 20. This significantly shortens the length of the coaxial cable 60, thereby significantly reducing signal loss during signal transmission and resulting in better signal transmission efficiency for the ultra-wideband antenna 10. However, the present invention is not limited to the aforementioned embodiments. In other embodiments, the ultra-wideband antenna and the RF module can be integrated, thus eliminating the need for a coaxial cable. In other embodiments, the ultra-wideband antenna is disposed on the front, back, or both sides of the RF module's substrate.

[0061] like Figure 3 and Figure 5 As shown, the motherboard 50 is disposed within one of the two earcups 30, and the radio frequency module 40 is electrically connected to the motherboard 50. In some embodiments, the wireless headset further includes at least one serial peripheral interface (SPI) line 70, through which the radio frequency module 40 and the motherboard 50 are electrically connected. The number of serial peripheral interface lines 70 can be adjusted appropriately according to actual needs. However, the present invention is not limited to the foregoing embodiments, and other suitable electrical connection elements can also be used to replace the serial peripheral interface lines 70.

[0062] However, the above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the invention are still within the scope of this patent. Furthermore, no embodiment or claim of the present invention needs to achieve all the objectives, advantages, or features disclosed in the invention. In addition, the abstract and headings are merely for assisting in patent document searches and are not intended to limit the scope of the invention.

Claims

1. An ultra-wideband antenna for wireless headphones, the ultra-wideband antenna comprising: A first part, wherein one side of the first part has at least two slots; as well as A second part is laterally adjacent to and separated from the first part. The second part includes a main body and an extension. One side of the main body is close to the at least two slots, and the other side of the main body is connected to the extension. An included angle between the main body and the extension is between 85 degrees and 135 degrees. The gap between the side of the at least two slots of the first part and the side of the main body of the second part near the slot is the feed point of the ultra-wideband antenna. The ultra-wideband antenna is located inside one end band of the wireless headset. The headband has a top wall and a side wall connected to the top wall. The main body of the first part and the second part is adjacent to the top wall, and the extension of the second part is adjacent to the side wall.

2. The ultra-wideband antenna as claimed in claim 1, wherein the main body has a rectangular portion and a hexagonal portion, a long side of the rectangular portion is close to the at least two slots, another long side of the rectangular portion is connected to a first bottom edge of the hexagonal portion, a second bottom edge of the hexagonal portion is connected to the extension, the first bottom edge is parallel to the second bottom edge, and a length of the first bottom edge is less than a length of the second bottom edge.

3. The ultra-wideband antenna of claim 2, wherein the length of the long side of the rectangular portion is greater than the length of the first base side of the hexagonal portion and less than the length of the second base side of the hexagonal portion.

4. The ultra-wideband antenna of claim 1, wherein the ratio of the length to the width of each slot is between 1.5:1 and 5:

1.

5. The ultra-wideband antenna as claimed in claim 1, wherein a width of the main body portion is greater than a width of the extension portion.

6. The ultra-wideband antenna as claimed in claim 1, wherein the first part is an arc-shaped plate.

7. The ultra-wideband antenna as claimed in claim 1, wherein the ultra-wideband antenna is suitable for the frequency band between 6 GHz and 9 GHz.

8. A wireless headset, comprising: One end leads the department; Two ear cups, with the headband connecting the two ear cups; The ultra-wideband antenna as described in claim 1 is disposed within the headband portion; A radio frequency module is disposed within the headband and electrically connected to the ultra-wideband antenna; and A motherboard is located inside one of the two earcups, and the radio frequency module is electrically connected to the motherboard.

9. The wireless headphones as described in claim 8, further comprising: A coaxial cable is used to electrically connect the ultra-wideband antenna and the radio frequency module.

10. The wireless headset of claim 8, wherein the ultra-wideband antenna is integrated with the radio frequency module.

11. The wireless headphones as described in claim 8, further comprising: At least one serial peripheral interface line, through which the RF module is electrically connected to the motherboard.

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