Antenna structure and electronic device having the same

Abstract

The application provides an antenna structure and an electronic device with the same. The antenna structure comprises an antenna body and at least two metal sheets. The antenna body and the metal sheets are arranged in the electronic device. The antenna body and the metal sheets are spaced apart by a preset distance in a preset direction. The projections of the antenna body and the metal sheets in the preset direction at least partially overlap. The at least two metal sheets are coplanar, and adjacent metal sheets are spaced apart by a preset interval. By arranging the at least two metal sheets spaced apart from the antenna body by a preset distance and the adjacent metal sheets spaced apart by a preset interval, the radiation intensity of the antenna structure can be enhanced, the radiation efficiency of the antenna structure can be improved, so that the antenna structure can more effectively receive wireless signals and improve the efficiency of the wireless signals. Moreover, the metal sheets do not need to increase the design space, the space of the electronic device can be saved, the space utilization of the electronic device is improved, and the efficiency of the antenna structure in the limited space is improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to antenna structures and electronic devices having such antenna structures. Background Technology

[0002] With the advancement of wireless communication technology, electronic devices such as mobile phones and personal digital assistants are constantly evolving towards greater functionality, thinner and lighter designs, and faster and more efficient data transmission. As wireless communication technology continues to develop, the performance requirements for antennas are constantly increasing. Therefore, how to improve antenna performance within a limited space is a crucial issue facing antenna design. Summary of the Invention

[0003] To address the aforementioned problems, it is necessary to provide an antenna structure and an electronic device having the antenna structure.

[0004] The first aspect of this application provides an antenna structure for an electronic device, the antenna structure including an antenna body and at least two metal plates; the antenna body and the metal plates are disposed in the electronic device, the antenna body and the metal plates are spaced apart by a preset distance in a preset direction, and the projections of the antenna body and the metal plates in the preset direction at least partially overlap; at least two of the metal plates are coplanar, and adjacent metal plates are spaced apart by a preset interval.

[0005] In one embodiment of the first aspect, the metal sheet is rectangular.

[0006] In one embodiment of the first aspect, at least two of the metal sheets are arranged in an array.

[0007] In one embodiment of the first aspect, the antenna structure includes four metal sheets forming two metal groups, each metal group including two metal sheets, the two metal groups being symmetrical about a first axis and spaced apart by the preset spacing, and two metal sheets in the same metal group being symmetrical about a second axis and spaced apart by the preset spacing, the first axis and the second axis being perpendicular.

[0008] In one embodiment of the first aspect, the preset distance is 1 mm.

[0009] In one embodiment of the first aspect, the preset spacing ranges from 0.4 mm to 1 mm.

[0010] In one embodiment of the first aspect, the metal sheet is made of any one of iron, copper, silver, or gold.

[0011] In one embodiment of the first aspect, the antenna body includes a first radiating part, a second radiating part, a third radiating part, and a fourth radiating part. The first radiating part is connected to a first end of the second radiating part, the second end of the second radiating part is connected to a first end of the third radiating part, the first end of the third radiating part is connected to a first end of the fourth radiating part, the second end of the third radiating part extends along a first direction, and the second end of the fourth radiating part extends along a second direction, wherein the first direction and the second direction are opposite.

[0012] In one embodiment of the first aspect, the first radiating portion is rectangular, and the third and fourth radiating portions are straight strips and parallel to the first radiating portion.

[0013] A second aspect of this application provides an electronic device including the antenna structure described above.

[0014] The aforementioned antenna structure and electronic device having the antenna structure, by setting at least two metal plates spaced at a predetermined distance from the antenna body, with adjacent metal plates spaced apart by a predetermined interval, can enhance the radiation intensity and improve the radiation efficiency of the antenna structure. This allows the antenna structure to receive wireless signals more effectively and improve the efficiency of wireless signals. Moreover, the metal plates do not require additional design space, saving space in the electronic device, improving the space utilization rate of the electronic device, and achieving improved antenna structure efficiency within a limited space. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the application of the antenna structure provided in this application to an electronic device.

[0016] Figure 2 This is a schematic diagram of the antenna structure provided in an embodiment of this application.

[0017] Figure 3 This is a schematic diagram of the antenna body in the antenna structure provided in the embodiment of this application.

[0018] Figure 4 This is a schematic diagram showing the dimensions of the antenna structure provided in an embodiment of this application.

[0019] Figure 5 The radiation pattern of a separate antenna body provided for embodiments of this application.

[0020] Figure 6 The radiation pattern of the antenna structure provided in this application embodiment when the preset spacing is 0.6 mm.

[0021] Figure 7 The radiation pattern of the antenna structure provided in this application embodiment when the preset spacing is 1mm.

[0022] Figure 8 A schematic table showing the maximum radiation intensity and maximum radiation angle of the individual antenna body and the antenna structure of adjacent metal plates at different intervals provided in the embodiments of this application.

[0023] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that "multiple" in the embodiments of this application refers to two or more. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0026] It should be understood that, unless otherwise stated, " / " in this application means "or". For example, A / B can mean A or B. "A and / or B" in this application is merely a description of the relationship between related objects, indicating that there can be three relationships: only A exists, only B exists, and A and B exist.

[0027] It should be noted that in the embodiments of this application, the terms "first," "second," etc., are used only for descriptive purposes and should not be construed as indicating or implying relative importance, nor as indicating or implying order. Features specified as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0028] It should be noted that in the embodiments of this application, the terms "upper", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] Please see Figure 1 It is understood that this application provides an antenna structure 100, which can be applied to an electronic device 200 to transmit and receive radio waves to transmit and exchange wireless signals. The electronic device 200 can be a handheld communication device (e.g., a mobile phone), a folding device, a smart wearable device (e.g., a watch, headphones, etc.), a tablet computer, a personal digital assistant (PDA), etc., and is not specifically limited herein.

[0030] For example, such as Figure 1 The antenna structure 100 can be applied to the electronic device 200, which is a mobile phone.

[0031] It is understood that the electronic device 200 may employ one or more of the following communication technologies: Bluetooth (BT) communication technology, Global Positioning System (GPS) communication technology, Wireless Fidelity (Wi-Fi) communication technology, Global System for Mobile Communications (GSM) communication technology, Wideband Code Division Multiple Access (WCDMA) communication technology, Long Term Evolution (LTE) communication technology, 5G communication technology, Sub-6G communication technology, and other future communication technologies.

[0032] In this embodiment of the application, the electronic device 200 is a mobile phone as an example for illustration.

[0033] Please refer to the following: Figure 1 and Figure 2 In one embodiment, the antenna structure 100 includes an antenna body 10 and at least two metal plates 20.

[0034] The antenna body 10 and the metal plate 20 are disposed in the electronic device 200. The antenna body 10 and the metal plate 20 are spaced apart by a preset distance in a preset direction, and the projections of the antenna body 10 and the metal plate 20 in the preset direction at least partially overlap. At least two metal plates 20 are coplanar, and adjacent metal plates 20 are spaced apart by a preset interval.

[0035] In this embodiment, the metal sheet 20 can be made of conductive metallic materials such as iron, copper, silver, or gold. Iron and copper are preferred materials for the metal sheet 20, balancing conductivity and cost-effectiveness.

[0036] The preset distance between the antenna body 10 and the metal plate 20 can be set according to the requirements of the antenna structure 100, for example, it can be set to 1mm. The preset spacing between adjacent metal plates 20 can be set according to the performance requirements of the antenna structure 100, for example, the preset spacing can be set to a range of 0.4mm-1mm.

[0037] In this embodiment, the preset direction can be set according to the position of the antenna structure 100 in the electronic device 200. For example... Figure 1 As shown, if the antenna structure 100 is parallel to the screen of the electronic device 200, then the preset direction can be perpendicular to the screen of the electronic device 200. Alternatively, if the antenna structure 100 is perpendicular to the screen of the electronic device 200, then the preset direction can be parallel to the screen of the electronic device 200.

[0038] In this application, the position of the antenna structure 100 within the electronic device 200 can be set according to actual needs, such as... Figure 1 The antenna is positioned in the lower left corner of the electronic device 200, but it can also be positioned in the lower right corner, upper left corner, upper right corner, left center, right center, etc. of the electronic device. The antenna body 10 in the antenna structure 100 can be mounted on the main board of the electronic device 200, and the metal sheet 20 can be mounted on the inner surface of the housing.

[0039] In one embodiment, the metal sheet 20 is rectangular. At least two metal sheets 20 may be arranged in an array to enhance the radiated energy intensity of the antenna body 10.

[0040] In some specific examples, the antenna structure 100 may include four metal plates 20, which form two metal groups. Each metal group includes two metal plates 20. The two metal groups are symmetrical about a first axis and spaced apart by a preset distance. The two metal plates 20 in the same metal group are symmetrical about a second axis and spaced apart by a preset distance. The first axis and the second axis are perpendicular. In this way, the four metal plates 20 are arranged in an array, which can effectively enhance the energy intensity of the antenna body 10.

[0041] In this example, the preset distance between the antenna body 10 and the metal plate 20 can be set to 1 mm, and the preset spacing between adjacent metal plates 20 can be set to 0.6 mm.

[0042] Please refer to the following: Figures 1 to 3 The antenna body 10 includes a first radiating part 11, a second radiating part 12, a third radiating part 13 and a fourth radiating part 14. The first radiating part 11 is connected to the first end of the second radiating part 12, the second end of the second radiating part 12 is connected to the first end of the third radiating part 13, the first end of the third radiating part 13 is connected to the first end of the fourth radiating part 14, the second end of the third radiating part 13 extends along a first direction, and the second end of the fourth radiating part 14 extends along a second direction. The first direction and the second direction are opposite.

[0043] Specifically, the first radiating part 11 is rectangular, and the third radiating part 13 and the fourth radiating part 14 are straight and parallel to the first radiating part 11.

[0044] The second radiating section 12 includes a first radiating segment 121, a second radiating segment 122, and a third radiating segment 123. The first end of the first radiating segment 121 is perpendicularly connected to the first radiating section 11. The second end of the first radiating segment 121 extends along a third direction to be perpendicularly connected to the first end of the second radiating segment 122. The second end of the second radiating segment 122 extends along a first direction to be perpendicularly connected to the first end of the third radiating segment 123. The second end of the third radiating segment 123 extends along a third direction to be perpendicularly connected to the first end of the third radiating section 123.

[0045] Among them, the third direction is perpendicular to the first direction and the second direction, so that the first radiation segment 121 and the third radiation segment 123 are perpendicular to the second radiation segment 122, the third radiation part 13 and the fourth radiation part 14.

[0046] It is understood that the third radiating segment 123 and the fourth radiating part 14 are not directly connected. The second end of the third radiating segment 123 is connected to the upper side of the first end of the third radiating part 13, and the first end of the fourth radiating part 14 is connected to the lower side of the first end of the third radiating part 13.

[0047] In this embodiment, the axis of symmetry between the left and right metal plates 20 can be parallel to the central axis of the first radiating section 11. Thus, the projections of the two upper metal plates 20 onto the antenna body 10 along a predetermined direction are entirely located on the first radiating section 11. The projections of the two lower metal plates 20 onto the antenna body 10 along a predetermined direction are partially located on the first radiating section 11, and partially located on the second radiating section 12, the third radiating section 13, and the fourth radiating section 14.

[0048] In this embodiment, the antenna body 10 can receive the feed signal through the second end of the third radiating part 13 and / or the second end of the fourth radiating part 14, and then transmit the feed signal to the second radiating part 12 and the first radiating part 11. The first radiating part 11 can then be coupled with the metal sheet 20 to enhance the intensity of the radiated signal.

[0049] It is understood that, like the metal sheet 20, the antenna body 10 can be made of a conductive metal sheet, such as an iron sheet, copper sheet, aluminum sheet, etc. In this embodiment, the antenna body 10, including the first radiating part 11, the second radiating part 12, the third radiating part 13, and the fourth radiating part 14, can be obtained by cutting and etching a large conductive metal sheet.

[0050] Please see Figure 4 , Figure 4 A dimensional schematic diagram of an antenna structure 100 according to an embodiment of this application is shown. Figure 4 As shown, the preset spacing G between adjacent metal sheets 20 is 0.6 mm, the length L of the metal sheet 20 is 4.2 mm, and the width W of the metal sheet 20 is 1.8 mm.

[0051] Please see Figure 5 and Figure 6 , Figure 5 This is the radiation pattern of the individual antenna body 10 in this embodiment of the application. Figure 6 This is the radiation pattern of the antenna structure 100 according to an embodiment of this application. Figure 5 As shown, the maximum radiation angle of the antenna body 10 alone is 0 degrees, corresponding to a maximum radiation intensity of -4.7 dB. Figure 6 As shown, in the antenna structure 100, the distance between the metal sheet 20 and the antenna body 10 is 1 mm, and the interval between adjacent metal sheets 20 is 0.6 mm. At this point, the maximum radiation angle of the antenna structure 100 is also 0 degrees, corresponding to a maximum radiation intensity of 9.2 dB. Therefore, by arranging the metal sheets 20 in an array at predetermined intervals along the antenna body 10, the signal radiation intensity of the antenna structure 100 can be effectively improved, thus enhancing its radiation efficiency. The maximum radiation angle is the angle corresponding to the maximum radiation intensity of the antenna structure 100.

[0052] Please see Figure 7 , Figure 7 This is a radiation pattern of an antenna structure 100 according to another embodiment of this application. Figure 6As shown, in the antenna structure 100, the distance between the metal sheet 20 and the antenna body 10 is 1 mm, and the interval between adjacent metal sheets 20 is 1 mm. At this time, the maximum radiation angle of the antenna structure 100 is 20 degrees, and the corresponding maximum radiation intensity is 2.3 dB. Compared with the interval of 0.6 mm between adjacent metal sheets 20, the radiation intensity of the antenna structure 100 in this embodiment is lower.

[0053] Please see Figure 8 , Figure 8 A comparison table showing the maximum radiation intensity and maximum radiation angle of the antenna structure 100 with the individual antenna body 10 and adjacent metal plates 20 at different intervals in embodiments of this application is provided. Figure 8 It can be seen that the antenna structure 100 exhibits the highest maximum radiation intensity and optimal radiation performance when the spacing between adjacent metal plates 20 is 0.6 mm. Compared to the antenna structure 100 with metal plates 20, the antenna body 10 alone has the lowest maximum radiation intensity. When the spacing between adjacent metal plates 20 changes from 0.4 mm to 1 mm, the maximum radiation intensity of the antenna structure 100 first increases and then decreases, while the maximum radiation angle first decreases and then increases. In other words, by changing the spacing between adjacent metal plates 20, the maximum radiation intensity and maximum radiation angle of the antenna structure 100 can be altered. Therefore, the spacing between the metal plates 20 can be set according to the radiation performance requirements of the antenna structure 100 to ensure that the antenna structure 100 meets the requirements.

[0054] Therefore, the antenna structure 100 provided in this application, by setting at least two metal plates 20 spaced at a predetermined distance from the antenna body 10, and with adjacent metal plates 20 spaced apart by a predetermined interval, can enhance the radiation intensity and improve the radiation efficiency of the antenna structure 100, thereby enabling the antenna structure 100 to receive wireless signals more effectively and improve the efficiency of wireless signals. Moreover, the metal plates 20 do not require additional design space, which can save space in the electronic device 200, improve the space utilization of the electronic device 200, and achieve improved efficiency of the antenna structure 100 within a limited space.

[0055] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the preferred embodiments above, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application. Those skilled in the art can also make other changes within the spirit of this application and use them in the design of this application, as long as they do not deviate from the technical effects of this application. These changes made in accordance with the spirit of this application should all be included within the scope of protection claimed in this application.

Claims

1. An antenna structure for an electronic device, characterized in that, The antenna structure includes an antenna body and at least two metal plates; the antenna body and the metal plates are disposed in the electronic device, the antenna body and the metal plates are spaced apart by a preset distance in a preset direction, and the projections of the antenna body and the metal plates in the preset direction at least partially overlap; at least two of the metal plates are coplanar, and adjacent metal plates are spaced apart by a preset interval.

2. The antenna structure as described in claim 1, characterized in that, The metal sheet is rectangular in shape.

3. The antenna structure as described in claim 2, characterized in that, At least two of the aforementioned metal sheets are arranged in an array.

4. The antenna structure as described in claim 3, characterized in that, The antenna structure includes four metal sheets, which form two metal groups. Each metal group includes two metal sheets. The two metal groups are symmetrical about a first axis and spaced apart by a preset distance. The two metal sheets in the same metal group are symmetrical about a second axis and spaced apart by the preset distance. The first axis and the second axis are perpendicular.

5. The antenna structure as described in any one of claims 1 to 4, characterized in that, The preset distance is 1mm.

6. The antenna structure as described in any one of claims 1 to 4, characterized in that, The preset spacing ranges from 0.4 mm to 1 mm.

7. The antenna structure as described in claim 1, characterized in that, The metal sheet is made of any one of iron, copper, silver, or gold.

8. The antenna structure as described in claim 1, characterized in that, The antenna body includes a first radiating part, a second radiating part, a third radiating part, and a fourth radiating part. The first radiating part is connected to a first end of the second radiating part, the second end of the second radiating part is connected to a first end of the third radiating part, and the first end of the third radiating part is connected to a first end of the fourth radiating part. The second end of the third radiating part extends along a first direction, and the second end of the fourth radiating part extends along a second direction. The first direction and the second direction are opposite.

9. The antenna structure as described in claim 8, characterized in that, The first radiating part is rectangular, and the third and fourth radiating parts are straight strips and parallel to the first radiating part.

10. An electronic device, characterized in that, The electronic device includes the antenna structure as described in any one of claims 1 to 9.

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