Communication device

Abstract

A communication device is provided. The communication device comprises a metal grounding piece, a first antenna element, a second antenna element, a third antenna element, a fourth antenna element, a non-conductor supporting element, a first metal part and a second metal part, the metal grounding piece is provided with a slotted hole area; the first antenna element, the second antenna element, the third antenna element and the fourth antenna element are adjacent to the slot area; the first metal portion is coupled to a ground potential, wherein the first metal portion at least partially extends across the slot region. The second metal portion is coupled to a ground potential, wherein the second metal portion at least partially extends across the slot region. The first antenna element, the second antenna element, the third antenna element, the fourth antenna element, the first metal part and the second metal part are all arranged on the non-conductor supporting element. The communication device at least has the advantages of high isolation, small size, wide frequency band, low manufacturing cost and the like, and is suitable for being applied to a mobile device or the Internet of Things.

Description

Technical Field

[0001] The present invention relates to a communication device, and more particularly to a communication device that can improve isolation. Background Art

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

[0003] An antenna is a common component in mobile devices that support wireless communication. However, due to the limited internal space of mobile devices, the configuration of each antenna and its transmission line is often very close, making it easy to interfere with each other. Therefore, it is necessary to propose a new solution to improve the poor isolation problem in traditional designs. Summary of the Invention

[0004] In a preferred embodiment, the present invention provides a communication device, comprising: a metal ground part providing a ground potential, wherein the metal ground part has a slot region; a first antenna element having a first feeding point; a second antenna element having a second feeding point; a third antenna element having a third feeding point; a fourth antenna element having a fourth feeding point, wherein the first antenna element, the second antenna element, the third antenna element, and the fourth antenna element are all adjacent to the slot region; a first metal part coupled to the ground potential, wherein the first metal part at least partially extends across the slot region; a second metal part coupled to the ground potential, wherein the second metal part at least partially extends across the slot region; and a non-conductive support element, wherein the first antenna element, the second antenna element, the third antenna element, the fourth antenna element, the first metal part, and the second metal part are all disposed on the non-conductive support element.

[0005] In some embodiments, the metal ground part includes a first part and a second part that are coupled to each other, and the slot region is located between the first part and the second part.

[0006] In some embodiments, the first part of the metal ground piece serves as an upper cover housing, while the second part of the metal ground piece serves as a base housing.

[0007] In some embodiments, the slot hole region presents a straight bar shape.

[0008] In some embodiments, the slot hole region is a closed slot hole and has a first closed end and a second closed end.

[0009] In some embodiments, the first metal part is adjacent to the first closed end of the slot hole region, while the second metal part is adjacent to the second closed end of the slot hole region.

[0010] In some embodiments, the first antenna element, the second antenna element, the third antenna element, and the fourth antenna element are all disposed between the first metal part and the second metal part.

[0011] In some embodiments, the non-conductive support element has a first surface and a second surface that are different. The first feeding point and the second feeding point are both located on the first surface, while the third feeding point and the fourth feeding point are both located on the second surface.

[0012] In some embodiments, the first feeding point, the second feeding point, the third feeding point, and the fourth feeding point are all located on the same surface of the non-conductive support element.

[0013] In some embodiments, the first antenna element, the second antenna element, the third antenna element, and the fourth antenna element all cover a first frequency band, a second frequency band, and a third frequency band.

[0014] In some embodiments, the first frequency band is between 2400 MHz and 2500 MHz, the second frequency band is between 5150 MHz and 5850 MHz, and the third frequency band is between 5925 MHz and 7125 MHz.

[0015] In some embodiments, a first distance between the first feeding point and the first metal part is approximately equal to 0.25 times the wavelength of the first frequency band.

[0016] In some embodiments, a second distance between the second feeding point and the second metal part is approximately equal to 0.5 times the wavelength of the first frequency band.

[0017] In some embodiments, a third distance between the third feeding point and the second metal part is approximately equal to 0.25 times the wavelength of the first frequency band.

[0018] In some embodiments, a fourth distance between the fourth feeding point and the first metal part is approximately equal to 0.5 times the wavelength of the first frequency band.

[0019] In some embodiments, the width of each of the first metal part and the second metal part is greater than or equal to 0.2 mm.

[0020] In some embodiments, an open end of the first metal part is aligned with both the third feeding point and the fourth feeding point.

[0021] In some embodiments, an open end of the second metal part is aligned with both the first feeding point and the second feeding point.

[0022] In another preferred embodiment, the present invention provides a communication device, comprising: a metal ground part providing a ground potential, wherein the metal ground part has a slot region; a first antenna element having a first feeding point; a second antenna element having a second feeding point, wherein both the first antenna element and the second antenna element are adjacent to the slot region; a metal part coupled to the ground potential, wherein the metal part at least partially extends across the slot region; and a non-conductive support element, wherein the first antenna element, the second antenna element, and the metal part are all disposed on the non-conductive support element.

[0023] In some embodiments, both the first antenna element and the second antenna element are adjacent to the metal part.

[0024] The present invention provides a novel communication device. Compared with traditional designs, the present invention has at least the advantages of high isolation, small size, wide bandwidth, and low manufacturing cost, so it is very suitable for various mobile devices or the Internet of Things (IoT). BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1A A perspective view showing the communication device according to an embodiment of the present invention.

[0026] Figure 1B A perspective view showing the communication device according to another embodiment of the present invention.

[0027] Figure 2 A front view showing the communication device according to an embodiment of the present invention.

[0028] Figure 3 A graph showing the isolation between the first antenna element and the fourth antenna element according to an embodiment of the present invention.

[0029] Figure 4 A graph showing the isolation between the second antenna element and the third antenna element according to an embodiment of the present invention.

[0030] Figure 5 A perspective view showing the communication device according to another embodiment of the present invention.

[0031] Description of Main Component Symbols:

[0032] 100, 200, 500 Communication Devices

[0033] 110, 210 Metal Grounding Parts

[0034] 114 The First Part of the Metal Grounding Part

[0035] 115 The Second Part of the Metal Grounding Part

[0036] 120, 220 Slot Hole Areas

[0037] 131, 231, 531 First Antenna Elements

[0038] 132, 232, 532 Second Antenna Elements

[0039] 133, 233 Third Antenna Elements

[0040] 134, 234 Fourth Antenna Elements

[0041] 140, 240 Non-conductive Support Elements

[0042] 150, 250 First Metal Parts

[0043] 160, 260 Second Metal Parts

[0044] 170 Upper Cover Housing

[0045] 180 Base Housing

[0046] 191, 591 First Signal Sources

[0047] 192, 592 Second Signal Sources

[0048] 193 Third Signal Source

[0049] 194 Fourth Signal Source

[0050] 221 First Closed End

[0051] 222 Second Closed End

[0052] 251 The First End of the First Metal Part

[0053] 252 The Second End of the First Metal Part

[0054] 261 The First End of the Second Metal Part

[0055] 262 The Second End of the Second Metal Part

[0056] 550 Metal Part

[0057] CC1 First Curve

[0058] CC2 Second Curve

[0059] CC3 Third Curve

[0060] CC4 Fourth Curve

[0061] D1 First Distance

[0062] D2 Second Distance

[0063] D3 Third Distance

[0064] D4 Fourth Distance

[0065] E1 First Surface

[0066] E2 Second Surface

[0067] E3 Surface

[0068] FP1 First Feed Point

[0069] FP2 Second Feed Point

[0070] FP3 Third Feed Point

[0071] FP4 Fourth Feed Point

[0072] LN1 First Straight Line

[0073] LN2 Second Straight Line

[0074] VSS Ground Potential

[0075] W1, W2 Width Detailed Embodiment

[0076] To make the objectives, features, and advantages of the present invention more obvious and understandable, specific embodiments of the present invention are hereby given below, and in conjunction with the accompanying drawings, the detailed description is as follows.

[0077] In the description and claims, certain terms are used to refer to specific elements. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same element. The description and claims do not use the difference in names as a way to distinguish elements, but use the difference in functions of elements as the criterion for distinction. The terms "comprising" and "including" mentioned throughout the description and claims are open-ended terms and should be interpreted as "including but not limited to". The term "substantially" means within an acceptable error range. Those skilled in the art can solve the technical problems within a certain error range and achieve the basic technical effects. In addition, the term "coupled" in this description includes any direct and indirect electrical connection means. Therefore, if it is described in the text that a first device is 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 through other devices or connection means.

[0078] The following disclosure provides many different embodiments or examples for implementing different features of the present invention. The following disclosure describes specific examples of each component and its arrangement to simplify the description. Of course, these specific examples are not intended to be limiting. For example, if the description in this specification states that a first feature is formed on or above a second feature, it means that it may include an embodiment in which the first feature and the second feature are in direct contact, and it may also include an embodiment in which additional features are formed between the first feature and the second feature, so that the first feature and the second feature may not be in direct contact. Additionally, the same reference signs or (and) labels may be reused in different examples in the following description. These repetitions are for the purpose of simplification and clarity and are not intended to limit a specific relationship between the different embodiments or (and) structures being discussed.

[0079] In addition, spatial relative terms such as "below", "beneath", "lower", "above", "upper" and the like are used to facilitate the description of the relationship between one element or feature and another (some) element or feature in the drawings. Except for the orientation shown in the drawings, these spatial relative terms are intended to cover 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 spatial relative terms used herein can be interpreted in the same way accordingly.

[0080] Figure 1A A perspective view of a communication device 100 according to an embodiment of the present invention is shown. The communication device 100 can be applied to a mobile device, such as: a smart phone, a tablet computer, or a notebook computer. InFigure 1A In an embodiment, the communication device 100 includes: a metal ground element 110, a first antenna element 131, a second antenna element 132, a third antenna element 133, a fourth antenna element 134, a non-conductive support element 140, a first metal element 150, and a second metal element 160. It must be understood that although not shown in Figure 1A , the communication device 100 may further include other elements, such as: a processor, a touch control panel, a speaker, a power supply module, and / or a housing.

[0081] The metal ground element 110 can provide a ground voltage VSS, and the metal ground element 110 has a slot region 120. In some embodiments, the metal ground element 110 may include a combination of a plurality of ground elements. For example, the slot region 120 may generally present a straight shape, but is not limited thereto. In other embodiments, the slot region 120 may also generally present an L shape or a T shape. Specifically, the metal ground element 110 may include a first part 114 and a second part 115 that are coupled to each other, and the slot region 120 may be located between the first part 114 and the second part 115 of the metal ground element 110.

[0082] In some embodiments, if the communication device 100 is a notebook computer, the first part 114 of the metal ground element 110 may serve as an upper cover housing, and the second part 115 of the metal ground element 110 may serve as a base housing. It must be understood that the aforementioned upper cover housing and base housing may be respectively equivalent to the so-called "A part" and "D part" in the field of notebook computers. In other words, the slot region 120 may be adjacent to a hinge element (not shown) of this notebook computer.

[0083] The shapes and types of the first antenna element 131, the second antenna element 132, the third antenna element 133, and the fourth antenna element 134 are not particularly limited in the present invention. For example, any one of the first antenna element 131, the second antenna element 132, the third antenna element 133, and the fourth antenna element 134 can be a coupled-fed antenna, a monopole antenna, a dipole antenna, a patch antenna, a loop antenna, a planar inverted F antenna (PIFA), or a chip antenna.

[0084] The first antenna element 131, the second antenna element 132, the third antenna element 133, and the fourth antenna element 134 can all be disposed adjacent to the slot region 120 of the metal ground member 110. It should be noted that the term "adjacent" or "next to" in this specification can mean that the distance between the corresponding two elements is less than a predetermined distance (e.g., 10 mm or less), and can also include the case where the corresponding two elements are in direct contact with each other (i.e., the aforementioned distance is reduced to 0).

[0085] The first antenna element 131 has a first feeding point FP1, and the first feeding point FP1 can also be coupled to a first signal source 191. The second antenna element 132 has a second feeding point FP2, and the second feeding point FP2 can also be coupled to a second signal source 192. The third antenna element 133 has a third feeding point FP3, and the third feeding point FP3 can also be coupled to a third signal source 193. The fourth antenna element 134 has a fourth feeding point FP4, and the fourth feeding point FP4 can also be coupled to a fourth signal source 194. The aforementioned first signal source 191, second signal source 192, third signal source 193, and fourth signal source 194 can be four radio frequency modules, which can be used to excite the first antenna element 131, the second antenna element 132, the third antenna element 133, and the fourth antenna element 134 respectively.

[0086] The non-conductive support element 140 may at least partially cover the slot region 120 of the metal ground part 110. The first antenna element 131, the second antenna element 132, the third antenna element 133, the fourth antenna element 134, the first metal part 150, and the second metal part 160 may all be disposed on the non-conductive support element 140. In some embodiments, the non-conductive support element 140 has a first surface E1 and a second surface E2 that are different, where the first feeding point FP1 and the second feeding point FP2 may both be located on the first surface E1 of the non-conductive support element 140, and the third feeding point FP3 and the fourth feeding point FP4 may both be located on the second surface E2 of the non-conductive support element 140. For example, the first surface E1 and the second surface E2 of the non-conductive support element 140 may be substantially perpendicular to each other.

[0087] Figure 1B Shows a perspective view of the communication device 100 according to another embodiment of the present invention. In Figure 1B the embodiment, the communication device 100 is a notebook computer, where the non-conductive support element 140 may be disposed between an upper cover housing 170 and a base housing 180 of the notebook computer to support one or more antenna elements (not shown). For example, the non-conductive support element 140 may also be regarded as an extension of the upper cover housing 170, but is not limited thereto.

[0088] The first metal part 150 is coupled to the ground potential VSS. An open end of the first metal part 150 can extend towards the slot region 120 that straddles the metal ground part 110. The first metal part 150 can extend across at least part of the slot region 120 of the metal ground part 110. The second metal part 160 is also coupled to the ground potential VSS. An open end of the second metal part 160 can extend towards the slot region 120 that straddles the metal ground part 110. The second metal part 160 can also extend across at least part of the slot region 120 of the metal ground part 110. In other words, the vertical projections of the first metal part 150 and the second metal part 160 on the metal ground part 110 can at least partially overlap with the slot region 120. In some embodiments, the first metal part 150 or (and) the second metal part 160 can be configured to straddle the two opposite sides of the slot region 120. However, the present invention is not limited thereto. In other embodiments, the first metal part 150 or (and) the second metal part 160 can also be configured to straddle only at least a part of the slot region 120. It should be noted that the first antenna element 131, the second antenna element 132, the third antenna element 133, and the fourth antenna element 134 can all be disposed between the first metal part 150 and the second metal part 160. In other embodiments, the first metal part 150 and the second metal part 160 can further extend to the second surface E2 of the non-conductive support element 140, such that the open ends of both the first metal part 150 and the second metal part 160 can be aligned with the third feeding point FP3 and the fourth feeding point FP4 respectively.

[0089] According to the actual measurement results, since the first metal part 150 and the second metal part 160 can provide additional capacitance values, in the communication device 100 proposed in the present invention, the isolation between the first antenna element 131, the second antenna element 132, the third antenna element 133, and the fourth antenna element 134 can be greatly improved. The various different configurations and detailed structural features of the communication device 100 will be introduced below. It must be understood that these drawings and descriptions are only for illustration and not for limiting the present invention.

[0090] Figure 2 Shows a front view of a communication device 200 according to an embodiment of the present invention. Figure 2 and Figure 1A similar. In Figure 2 the embodiment, the communication device 200 includes: a metal ground part 210, a first antenna element 231, a second antenna element 232, a third antenna element 233, a fourth antenna element 234, a non-conductive support element 240, a first metal part 250, and a second metal part 260.

[0091] The metal ground piece 210 can provide a ground potential VSS. The metal ground piece 210 has a slot region 220, where the slot region 220 can be a closed slot and has a first closed end 221 and a second closed end 222 that are away from each other. In some embodiments, the first metal part 250 can be adjacent to the first closed end 221 of the slot region 220, and the second metal part 260 can be adjacent to the second closed end 222 of the slot region 220.

[0092] The first antenna element 231, the second antenna element 232, the third antenna element 233, and the fourth antenna element 234 can all be disposed adjacent to the slot region 220 of the metal ground piece 210. In some embodiments, both the first antenna element 231 and the second antenna element 232 can be located on the same side (e.g., the lower side) of the slot region 220, while the third antenna element 233 and the fourth antenna element 234 can both be located on the opposite side (e.g., the upper side) of the slot region 220.

[0093] The non-conductive support element 240 can completely cover the slot region 220 of the metal ground piece 210. The non-conductive support element 240 can be implemented by a dielectric substrate, such as an FR4 (Flame Retardant 4) substrate, a printed circuit board (PCB), or a flexible printed circuit (FPC). In some embodiments, a first feeding point FP1 of the first antenna element 231, a second feeding point FP2 of the second antenna element 232, a third feeding point FP3 of the third antenna element 233, and a fourth feeding point FP4 of the fourth antenna element 234 can all be located on the same surface E3 of the non-conductive support element 240. Additionally, the opposite surface of the non-conductive support element 240 can be attached to the metal ground piece 210.

[0094] The first metal part 250 has a first end 251 and a second end 252, wherein the first end 251 of the first metal part 250 is coupled to the ground potential VSS, and the second end 252 of the first metal part 250 is an open end and extends across the slot region 220. In some embodiments, the first metal part 250 may generally present a straight bar shape, but is not limited thereto. It should be noted that the second end 252 of the first metal part 250 can be aligned with both the third feeding point FP3 and the fourth feeding point FP4. In other words, the second end 252 of the first metal part 250, the third feeding point FP3, and the fourth feeding point FP4 can all be arranged on a first straight line LN1 to correspond to a high current - density region on the metal ground part 210.

[0095] The second metal part 260 has a first end 261 and a second end 262, wherein the first end 261 of the second metal part 260 is coupled to the ground potential VSS, and the second end 262 of the second metal part 260 is an open end and extends across the slot region 220. For example, the second end 262 of the second metal part 260 and the second end 252 of the first metal part 250 can extend in generally opposite directions. In some embodiments, the second metal part 260 may generally present another straight bar shape, which can be generally parallel to the first metal part 250, but is not limited thereto. It should be noted that the second end 262 of the second metal part 260 can be aligned with both the first feeding point FP1 and the second feeding point FP2. In other words, the second end 262 of the second metal part 260, the first feeding point FP1, and the second feeding point FP2 can all be arranged on a second straight line LN2 to correspond to another high current - density region on the metal ground part 210. Additionally, the second straight line LN2 can be generally parallel to the aforementioned first straight line LN1.

[0096] In some embodiments, the first antenna element 231, the second antenna element 232, the third antenna element 233, and the fourth antenna element 234 can all cover a first frequency band, a second frequency band, and a third frequency band. For example, the aforementioned first frequency band can be between 2400 MHz and 2500 MHz, the aforementioned second frequency band can be between 5150 MHz and 5850 MHz, and the aforementioned third frequency band can be between 5925 MHz and 7125 MHz. Therefore, the communication device 200 will be able to support at least the broadband operations of WLAN (Wireless Local Area Network) and Wi - Fi 6E.

[0097] Figure 3Displays the isolation diagram between the first antenna element 231 and the fourth antenna element 234 according to an embodiment of the present invention, where the horizontal axis represents the operating frequency (MHz), and the vertical axis represents the isolation (dB). For example, if the first feeding point FP1 is set as a first port (Port 1), and the fourth feeding point FP4 is set as a fourth port (Port 4), then the absolute value of the S41 parameter between the first port and the fourth port can be regarded as the isolation between the first antenna element 231 and the fourth antenna element 234. As Figure 3 shown, a first curve CC1 represents the isolation characteristic of the communication device 200 without using the first metal part 250, and a second curve CC2 represents the isolation characteristic of the communication device 200 with the first metal part 250 used. It must be understood that the first antenna element 231 and the fourth antenna element 234 can jointly excite an in-phase current with respect to the slot region 220, and the corresponding electric field of this in-phase current can have constructive interference with the equivalent capacitance value of the first metal part 250, thereby improving the antenna isolation of the communication device 200. According to Figure 3 the measurement results, after using the first metal part 250, the isolation between the first antenna element 231 and the fourth antenna element 234 can reach at least 30 dB, which can meet the actual application requirements of general mobile communication devices.

[0098] Figure 4 Displays the isolation diagram between the second antenna element 232 and the third antenna element 233 according to an embodiment of the present invention, where the horizontal axis represents the operating frequency (MHz), and the vertical axis represents the isolation (dB). For example, if the second feeding point FP2 is set as a second port (Port 2), and the third feeding point FP3 is set as a third port (Port 3), then the absolute value of the S32 parameter between the second port and the third port can be regarded as the isolation between the second antenna element 232 and the third antenna element 233. As Figure 4 shown, a third curve CC3 represents the isolation characteristic of the communication device 200 without using the second metal part 260, and a fourth curve CC4 represents the isolation characteristic of the communication device 200 with the second metal part 260 used. It must be understood that the second antenna element 232 and the third antenna element 233 can jointly excite an in-phase current with respect to the slot region 220, and the corresponding electric field of this in-phase current can have constructive interference with the equivalent capacitance value of the second metal part 260, thereby improving the antenna isolation of the communication device 200. According to Figure 4The measurement result shows that after using the second metal part 260, the isolation between the second antenna element 232 and the third antenna element 233 can reach at least 30 dB, which can meet the actual application requirements of general mobile communication devices.

[0099] In some embodiments, the element sizes of the communication device 200 can be as described below. A first distance D1 between the first feeding point FP1 and the first metal part 250 can be approximately equal to 0.25 times the wavelength (λ / 4) of the first frequency band of the communication device 200. A second distance D2 between the second feeding point FP2 and the second metal part 260 can be approximately equal to 0.5 times the wavelength (λ / 2) of the first frequency band of the communication device 200. A third distance D3 between the third feeding point FP3 and the second metal part 260 can be approximately equal to 0.25 times the wavelength (λ / 4) of the first frequency band of the communication device 200. A fourth distance D4 between the fourth feeding point FP4 and the first metal part 250 can be approximately equal to 0.5 times the wavelength (λ / 2) of the first frequency band of the communication device 200. The width W1 of the first metal part 250 can be greater than or equal to 0.2 mm. The width W2 of the second metal part 260 can be greater than or equal to 0.2 mm. The ranges of the above element sizes are obtained based on multiple experimental results, which help to optimize the isolation, operational bandwidth, and impedance matching of the communication device 200.

[0100] Figure 5 A perspective view of a communication device 500 according to another embodiment of the present invention is shown. Figure 5 and Figure 1A similar. In Figure 5In an embodiment, the communication device 500 at least includes: the aforementioned metal ground part 110, a first antenna element 531, a second antenna element 532, the aforementioned non-conductive support element 140, and a metal part 550. In other words, the communication device 500 does not include the third antenna element and the fourth antenna element as described above. The first antenna element 531 has a first feeding point FP1, where the first feeding point FP1 can also be coupled to a first signal source 591. The second antenna element 532 has a second feeding point FP2, where the second feeding point FP2 can also be coupled to a second signal source 592. The first antenna element 531, the second antenna element 532, and the metal part 550 are all disposed on the non-conductive support element 140, where the first antenna element 531 and the second antenna element 532 are both adjacent to the slot region 120 of the metal ground part 110. For example, the first antenna element 531 and the first feeding point FP1 can both be located on the first surface E1 of the non-conductive support element 140, while the second antenna element 532 and the second feeding point FP2 can both be located on the second surface E2 of the non-conductive support element 140. The metal part 550 is coupled to the ground potential VSS, where the metal part 550 can at least partially extend across the slot region 120 of the metal ground part 110. Additionally, the first antenna element 531 and the second antenna element 532 can also be adjacent to the metal part 550. According to actual measurement results, the metal part 550 can also be used to increase the isolation between the first antenna element 531 and the second antenna element 532. Figure 5 The remaining features of the communication device 500 are all similar to those of Figure 1A the communication device 100, so these two embodiments can achieve similar operating effects.

[0101] The present invention provides a novel communication device. Compared with traditional designs, the present invention has at least the advantages of high isolation, small size, wide bandwidth, and low manufacturing cost, so it is very suitable for application in various mobile devices or the Internet of Things (IOT).

[0102] It should be noted that the above-mentioned element sizes, element shapes, and frequency ranges are not limitations of the present invention. Designers can adjust these setting values according to different needs. The communication device of the present invention is not limited to Figures 1A to 5 the state shown in the figure. The present invention can include only Figures 1A to 5 any one or more features of any one or more of the embodiments shown. In other words, not all the features shown need to be implemented simultaneously in the communication device of the present invention.

[0103] In the present specification and the claims, ordinal numbers such as "first", "second", "third", etc. do not have a sequential relationship with each other, and they are only used to label and distinguish two different elements with the same name.

[0104] Although the present invention is disclosed above in preferred embodiments, it is not intended to limit the scope of the present invention. Any person skilled in the art should be able to make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope defined in the appended claims.

Claims

1. A communication device, the communication device comprising: a metal grounding member that provides a ground potential, wherein the metal grounding member has a slot region; a first antenna element having a first feeding point; a second antenna element having a second feeding point; a third antenna element having a third feeding point; a fourth antenna element having a fourth feeding point, wherein the first antenna element, the second antenna element, the third antenna element, and the fourth antenna element are all adjacent to the slot region; a first metal part coupled to the ground potential, wherein the first metal part at least partially extends across the slot region; a second metal part coupled to the ground potential, wherein the second metal part at least partially extends across the slot region; and a non-conductive support element, wherein the first antenna element, the second antenna element, the third antenna element, the fourth antenna element, the first metal part, and the second metal part are all disposed on the non-conductive support element.

2. The communication device according to claim 1, wherein the metal grounding member comprises a first part and a second part that are coupled to each other, and the slot region is located between the first part and the second part.

3. The communication device according to claim 2, wherein the first part of the metal grounding member serves as an upper cover housing, and the second part of the metal grounding member serves as a base housing.

4. The communication device according to claim 1, wherein the slot region is in a straight bar shape.

5. The communication device according to claim 1, wherein the slot region is a closed slot and has a first closed end and a second closed end.

6. The communication device according to claim 5, wherein the first metal part is adjacent to the first closed end of the slot region, and the second metal part is adjacent to the second closed end of the slot region.

7. The communication device according to claim 1, wherein the first antenna element, the second antenna element, the third antenna element, and the fourth antenna element are all disposed between the first metal part and the second metal part.

8. The communication device according to claim 1, wherein the non-conductive support element has a first surface and a second surface that are different, the first feeding point and the second feeding point are both located on the first surface, and the third feeding point and the fourth feeding point are both located on the second surface.

9. The communication device according to claim 1, wherein the first feeding point, the second feeding point, the third feeding point, and the fourth feeding point are all located on the same surface of the non-conductive support element.

10. The communication device according to claim 1, wherein the first antenna element, the second antenna element, the third antenna element, and the fourth antenna element all cover a first frequency band, a second frequency band, and a third frequency band.

11. The communication device according to claim 10, wherein the first frequency band is between 2400 MHz and 2500 MHz, the second frequency band is between 5150 MHz and 5850 MHz, and the third frequency band is between 5925 MHz and 7125 MHz.

12. The communication device according to claim 10, wherein a first distance between the first feeding point and the first metal part is approximately equal to 0.25 times the wavelength of the first frequency band.

13. The communication device according to claim 10, wherein a second distance between the second feeding point and the second metal part is approximately equal to 0.5 times the wavelength of the first frequency band.

14. The communication device according to claim 10, wherein a third distance between the third feeding point and the second metal part is approximately equal to 0.25 times the wavelength of the first frequency band.

15. The communication device according to claim 10, wherein a fourth distance between the fourth feeding point and the first metal part is approximately equal to 0.5 times the wavelength of the first frequency band.

16. The communication device according to claim 1, wherein the width of each of the first metal part and the second metal part is greater than or equal to 0.2 mm.

17. The communication device according to claim 1, wherein an open end of the first metal part is aligned with both the third feeding point and the fourth feeding point.

18. The communication device according to claim 1, wherein an open end of the second metal part is aligned with both the first feeding point and the second feeding point.

19. A communication device, the communication device comprises: a metal ground part that provides a ground potential, wherein the metal ground part has a slot region; a first antenna element that has a first feeding point; a second antenna element that has a second feeding point, wherein both the first antenna element and the second antenna element are adjacent to the slot region; a metal part that is coupled to the ground potential, wherein the metal part at least partially extends across the slot region; and a non-conductive support element, wherein the first antenna element, the second antenna element, and the metal part are all disposed on the non-conductive support element.

20. The communication device according to claim 19, wherein both the first antenna element and the second antenna element are adjacent to the metal part.

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