An antenna systems and an electronic equipment

Abstract

This invention belongs to the field of antenna technology and discloses an antenna system and electronic device. The antenna system includes a support, a first antenna, and a second antenna. The support includes a first mounting area and a second mounting area. The first mounting area has a notch, and the second mounting area is located within the notch. The first antenna includes a first antenna body disposed in the first mounting area. The second antenna includes a second antenna body disposed in the second mounting area, and there is a gap between the second antenna body and the first antenna body to form a clearance area between the first and second antennas. The first and second antennas are antennas of different types. The antenna system provided by this invention simultaneously possesses the functions of two types of antennas and can be relatively small in size, making it applicable to electronic devices with high space requirements.

Description

Technical Field

[0001] This invention relates to the field of antenna technology, and more particularly to an antenna system and electronic device. Prior Technology

[0002] UWB (Ultra-wideband) is a wireless carrier communication technology that uses broadband pulse communication technology. It has strong anti-interference capabilities, significantly reducing positioning errors and achieving centimeter-level accuracy. UWB positioning technology relies on wireless communication and positioning beacons to achieve real-time tracking and positioning of people and objects indoors. It is widely used in smart factories, unmanned exhibition and sales systems, modern warehousing and logistics, key personnel and equipment management, intelligent building navigation, and intelligent hospital guidance, among other fields.

[0003] In existing technologies, electronic devices typically include UWB antennas and BLE (Bluetooth Low Energy) antennas to improve positioning performance. UWB and BLE antennas are two independent components, both housed within the electronic device's casing. Furthermore, both require board-like structures such as circuit boards for support, resulting in a significant need for dedicated antenna mounting space and area. Consequently, UWB and BLE antennas cannot be simultaneously used in space-constrained electronic devices. Summary of the Invention

[0004] The first objective of this invention is to provide an antenna system that solves the technical problem of large size in the prior art.

[0005] The second objective of this invention is to provide an electronic device that can simultaneously function as two antennas, and the space reserved for the antenna system can be relatively small, which is conducive to miniaturization.

[0006] Based on the above concept, the technical solution adopted by this invention is: Antenna system, including: The support body includes a first mounting area and a second mounting area, the first mounting area having a notch, and the second mounting area being located within the notch; The first antenna includes a first antenna body, which is disposed in the first mounting area; The second antenna includes a second antenna body, which is disposed in the second mounting area, and there is a gap between the second antenna body and the first antenna body to form a clearance area between the first antenna and the second antenna; The first antenna and the second antenna are antennas of different types.

[0007] Optionally, the support has a first mounting surface and a second mounting surface opposite to the first mounting surface. The first antenna body and the second antenna body are both disposed on the first mounting surface. The first antenna further includes a first ground feed line and a first electrical feed line, both of which are disposed on the second mounting surface. The first ground feed line is electrically connected to the first antenna body, and the first electrical feed line is coupled to the first antenna body. The first electrical feed line is insulated from the first ground feed line. The second antenna further includes a second ground feed line and a second electrical feed line, both of which are disposed on the second mounting surface. The second ground feed line is electrically connected to both the first antenna body and the second antenna body, and the second electrical feed line is electrically connected to the second antenna body.

[0008] Optionally, the first antenna body includes a central portion and a first antenna portion, a second antenna portion, a third antenna portion, and a fourth antenna portion connected sequentially along the circumferential direction to the central portion. The first antenna portion and the third antenna portion are arranged opposite to each other in a first direction, and the second antenna portion and the fourth antenna portion are arranged opposite to each other in a second direction. The second antenna body is located in the space formed by the first antenna portion and the second antenna portion. The areas of the first antenna portion and the second antenna portion are both smaller than the area of ​​the third antenna portion, and the areas of the first antenna portion and the second antenna portion are both smaller than the area of ​​the fourth antenna portion. The first direction intersects the second direction.

[0009] Optionally, the second ground feed line is electrically connected to the second antenna section, and the second ground feed line has a second groove, one end of the second electrical feed line is located in the second groove, and the other end of the second electrical feed line extends toward the second mounting area and is electrically connected to the second antenna body.

[0010] Optionally, the support body has a square structure; the orthographic projection of the first antenna body on the support body is located inside the support body, and the end faces of the first antenna portion away from the center portion, the second antenna portion away from the center portion, the third antenna portion away from the center portion, and the fourth antenna portion away from the center portion are all flush with the side surface of the support body; and / or, along the direction away from the center portion, the widths of the first antenna portion, the second antenna portion, the third antenna portion, and the fourth antenna portion gradually increase and then gradually decrease; and / or, the orthographic projection of the second antenna body on the support body is located inside the support body, and the end face of the second antenna body away from the first antenna body is flush with the side surface of the support body.

[0011] Optionally, the second antenna body includes a fifth antenna section, a sixth antenna section, and a seventh antenna section. The sixth antenna section and the seventh antenna section are spaced apart and connected to the same side of the fifth antenna section. In the arrangement direction of the sixth antenna section and the seventh antenna section, the sixth antenna section is closer to the first antenna body than the seventh antenna section. The second ground feed line and the second electrical feed line are both electrically connected to the end of the seventh antenna section that is away from the fifth antenna section.

[0012] Optionally, the second antenna further includes a third antenna body, which is disposed on the second mounting surface and electrically connected to one end of the sixth antenna portion that is opposite to the fifth antenna portion.

[0013] Optionally, the first ground feed line has a first groove, and one end of the first electrical feed line is located in the first groove; the second ground feed line is electrically connected to the second antenna section, and the second ground feed line has a second groove, one end of the second electrical feed line is located in the second groove, and the other end of the second electrical feed line extends toward the second mounting area and is electrically connected to the second antenna body.

[0014] Optionally, the antenna system further includes a first radio frequency cable, a second radio frequency cable, and a ground plane. The ground plane is disposed on the second mounting surface and electrically connected to the first antenna body. The inner conductor of the first radio frequency cable is electrically connected to the first ground feed line of the first antenna, and the outer conductor of the first radio frequency cable is fixedly connected to and electrically connected to the ground plane. The inner conductor of the second radio frequency cable is electrically connected to the second ground feed line of the second antenna, and the outer conductor of the second radio frequency cable is fixedly connected to and electrically connected to the ground plane.

[0015] Optionally, the first antenna is an ultra-wideband antenna, and the second antenna is a Bluetooth beacon antenna.

[0016] An electronic device is provided, including the antenna system described above.

[0017] The antenna system and electronic device provided by this invention have at least the following beneficial effects:

[0018] The antenna system includes a first antenna and a second antenna of different types. Both the first and second antennas are mounted on a support, so that the antenna system has the functions of both the first and second antennas. By mounting the first and second antennas on the same support, the space required by the antenna system can be reduced, making the size and area of ​​the antenna system smaller. This allows the antenna system to be smaller while still having rich functionality, making it suitable for use in electronic devices with high size requirements. The electronic devices do not need to reserve a large installation space, which is conducive to the miniaturization of electronic devices. Simple Explanation of the Diagram

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort. Figure 1 is a schematic diagram of the antenna system provided in an embodiment of the present invention; Figure 2 is a top view of the antenna system provided in an embodiment of the present invention; Figure 3 is a bottom view of the antenna system provided in an embodiment of the present invention; Figure 4 is an exploded view of the antenna system provided in an embodiment of the present invention; Figure 5 is a schematic diagram of the structure of a partial antenna system provided in an embodiment of the present invention; Figure 6 is a schematic diagram of the structure of the first antenna provided in an embodiment of the present invention; Figure 7 is a schematic diagram of the structure of the second antenna provided in an embodiment of the present invention; Figure 8 is a graph of the S11 parameters of the first antenna provided in an embodiment of the present invention; Figure 9 is a graph showing the antenna efficiency of the first antenna provided in an embodiment of the present invention; Figure 10 is a surface current distribution diagram of the first antenna provided in an embodiment of the present invention; Figure 11 is a 3D radiation pattern of the first antenna provided in an embodiment of the present invention; Figure 12 is a first 2D radiation pattern of the first antenna provided in an embodiment of the present invention; Figure 13 is a second 2D radiation pattern of the first antenna provided in an embodiment of the present invention; Figure 14 is a graph of the S11 parameters of the second antenna provided in an embodiment of the present invention; Figure 15 is a graph showing the antenna efficiency of the second antenna provided in an embodiment of the present invention; Figure 16 is a surface current distribution diagram of the second antenna provided in an embodiment of the present invention; Figure 17 is a 3D radiation pattern of the second antenna provided in an embodiment of the present invention; Figure 18 is a first 2D radiation pattern of the second antenna provided in an embodiment of the present invention; Figure 19 is a second 2D radiation pattern of the second antenna provided in an embodiment of the present invention; Figure 20 is a graph of the S21 parameters between the first antenna and the second antenna provided in an embodiment of the present invention. Implementation

[0020] To make the technical problems solved by this invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of this invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this invention and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this invention are shown in the accompanying drawings, not all of them.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0024] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0025] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or it can be located in between the components.

[0026] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Firstly, this embodiment provides an antenna system that integrates two types of antennas, enabling the antenna system to have the functions of two antennas while keeping its size small, thus reducing the space occupied by the antenna and allowing the antenna to be used in electronic devices with limited installation space.

[0028] As exemplarily shown in Figures 1 to 7, the antenna system includes a support 100, a first antenna 200, and a second antenna 300. Both the first antenna 200 and the second antenna 300 are disposed on the support 100.

[0029] As shown in Figure 2, the support body 100 includes a first mounting area 110 and a second mounting area 120. The first mounting area 110 has a notch 111, and the second mounting area 120 is located within the notch 111 to fully utilize the support body 100. The first antenna 200 includes a first antenna body 210, which is disposed in the first mounting area 110. The second antenna 300 includes a second antenna body 310, which is disposed in the second mounting area 120. The first antenna body 210 and the second antenna body 310 are supported by the support body 100. Furthermore, there is a gap between the second antenna body 310 and the first antenna body 210 to form a clearance area 400 between the first antenna 200 and the second antenna 300. The clearance area 400 ensures that the first antenna 200 and the second antenna 300 do not interfere with each other, thus achieving better performance.

[0030] It should be noted that the first antenna 200 and the second antenna 300 in this embodiment are antennas of different types. They can also be considered to have different functions or operating frequencies, etc., and this embodiment does not limit this. For example, in this embodiment, the first antenna 200 is an ultra-wideband (UWB) antenna, and the second antenna 300 is a BLE antenna.

[0031] In the antenna system provided in this embodiment, both the first antenna 200 and the second antenna 300 are mounted on the support 100, so that the antenna system has the functions of both the first antenna 200 and the second antenna 300. By mounting the first antenna 200 and the second antenna 300 on the same support 100, the space required by the antenna system can be reduced, so that the size and area of ​​the antenna system can be smaller. This allows the antenna system to be small in size while having rich functions, and can be used in electronic devices with high size requirements. The electronic devices do not need to reserve a large installation space, which is conducive to the miniaturization of electronic devices.

[0032] In some optional embodiments, the support 100 is a plate structure with a thickness of 0.8mm to 1.2mm. For example, the thickness of the support 100 is 0.8mm, 1.0mm, or 1.2mm. The material of the support 100 can be an FR4 epoxy fiberglass dielectric substrate, for example, the support 100 can be a PCB board. The dielectric constant of the support 100 is 4.0-4.5, for example, the dielectric constant of the support 100 is 4.0, 4.1, 4.2, or 4.5. The support 100 can be rectangular, square, circular, trapezoidal, etc., and this embodiment does not limit this. In this embodiment, as shown in FIG1, the support 100 is square, making the support 100 more regular and convenient for the placement of the antenna system in the electronic device. In this embodiment, the side length of the support 100 is 10mm-18mm. For example, the side length of the support 100 is 10mm, 12mm, 15mm, 16mm, or 18mm.

[0033] As exemplarily shown in FIG1, the support 100 has a first mounting surface 101 and a second mounting surface 102 disposed opposite to the first mounting surface 101. In some optional embodiments, the first mounting surface 101 and the second mounting surface 102 are disposed opposite to each other in the thickness direction of the support 100. The first antenna body 210 and the second antenna body 310 are both disposed on the first mounting surface 101.

[0034] As shown in Figure 3, the first antenna 200 also includes a first ground feed line 220 and a first electrical feed line 230. Both the first ground feed line 220 and the first electrical feed line 230 are located on the second mounting surface 102 to fully utilize the space on the support 100. In this embodiment, the first ground feed line 220 is electrically connected to the first antenna body 210, and the first electrical feed line 230 is insulated from the first ground feed line 220. The first electrical feed line 230 is coupled to the first antenna body 210, enabling resonance adjustment and antenna radiation of the first antenna 200. In this embodiment, the first ground feed line 220 and the first antenna body 210 can be electrically connected via at least one metal post 800 passing through the support 100. The metal post 800 can be made of copper or other metals; this embodiment does not limit the material.

[0035] Optionally, the second antenna 300 further includes a second ground feed line 320 and a second electrical feed line 330. Both the second ground feed line 320 and the second electrical feed line 330 are located on the second mounting surface 102 to fully utilize the arrangement space on the support 100. In this embodiment, the second ground feed line 320 is electrically connected to both the first antenna body 210 and the second antenna body 310. By providing the second ground feed line 320, the impedance of the first antenna body 210 and the second antenna body 310 can be adjusted, thereby achieving impedance adjustment of the antenna system. Furthermore, the first antenna 200 and the second antenna 300 can be integrated through the second ground feed line 320, enabling the first antenna 200 and the second antenna 300 to share a single ground feed. The second electrical feed line 330 is electrically connected to the second antenna body 310 to extend the second electrical feed line 330 to the second antenna body 310.

[0036] In some optional embodiments, the second ground feed line 320 and the first antenna body 210 can be electrically connected via at least one metal post 800 passing through the support 100. The second ground feed line 320 and the second antenna body 310 can be electrically connected via at least one metal post 800 passing through the support 100. The second ground feed line 330 and the second antenna body 310 can be electrically connected via at least one metal post 800 passing through the support 100.

[0037] In this embodiment, the first antenna body 210 is an integral structure, but it can also be a split structure. For example, as shown in FIG5 or FIG6, the first antenna body 210 includes a central portion 211 and a first antenna portion 212, a second antenna portion 213, a third antenna portion 214, and a fourth antenna portion 215 sequentially connected to the central portion 211 along the circumferential direction. The first antenna portion 212 and the third antenna portion 214 are disposed opposite each other in the first direction X, and the second antenna portion 213 and the fourth antenna portion 215 are disposed opposite each other in the second direction Y. The second antenna body 310 is located in the space formed by the first antenna portion 212 and the second antenna portion 213. The first direction X intersects the second direction Y, and both the first direction X and the second direction Y are perpendicular to the thickness direction of the support 100.

[0038] In some optional embodiments, as shown in Figures 5 and 6, the areas of the first antenna portion 212 and the second antenna portion 213 are both smaller than the area of ​​the third antenna portion 214. For example, the area of ​​the first antenna portion 212 can be half or nearly half the area of ​​the third antenna portion 214, and the area of ​​the second antenna portion 213 can be half or nearly half the area of ​​the third antenna portion 214, so as to ensure that the first antenna 200 has a large area while better matching the shape of the second antenna 300. Furthermore, the areas of the first antenna portion 212 and the second antenna portion 213 are both smaller than the area of ​​the fourth antenna portion 215. The area of ​​the fourth antenna portion 215 is the same as or close to the area of ​​the third antenna portion 214; this embodiment does not limit this.

[0039] Referring to Figure 5, the first ground feed line 220 is electrically connected to the fourth antenna section 215, and the first ground feed line 220 has a first groove 221. One end of the first electrical feed line 230 is located in the first groove 221, with a gap between it and the first ground feed line 220. The other end of the first electrical feed line 230 is positioned opposite to the first antenna section 212 in the thickness direction of the support body 100. By positioning one end of the first electrical feed line 230 in the first groove 221, the coupling effect between the first electrical feed line 230, the first ground feed line 220, and the first antenna body 210 can be improved, thereby ensuring the adjustment of the resonance and radiation effect of the first antenna 200. By positioning the other end of the first electrical feed line 230 opposite to the first antenna section 212 in the thickness direction of the support body 100, the length of the first electrical feed line 230 can meet the requirements.

[0040] It should be noted that the location and length of the first electrical feed line 230 determine the resonance and bandwidth of the first antenna 200, and the length and width of the first antenna body 210 also determine the resonance and bandwidth of the first antenna 200. The first antenna body 210 and the first electrical feed line 230 with the above-described structures enable the first antenna 200 to have a large bandwidth and good resonance performance.

[0041] In this embodiment, the first power feed line 230 can be an integral structure or a split structure. In some optional embodiments, as shown in FIG5, the first power feed line 230 includes a first power feed segment 231 extending along a first direction X and a second power feed segment 232 that is angled to the first power feed segment 231 and extends toward the first antenna portion 212 away from the fourth antenna portion 215. One end of the first power feed segment 231 is located in the first groove 221, and the second power feed segment 232 is disposed opposite to the first antenna portion 212 in the thickness direction of the support 100.

[0042] In this embodiment, the first ground feeder line 220 can be in the form of a sheet. Of course, it is understood that the first ground feeder line 220 can also be in other shapes, and this embodiment does not limit this.

[0043] In some optional embodiments, the orthographic projection of the first antenna body 210 onto the support 100 is located within the support 100, ensuring that the first antenna body 210 does not protrude from the support 100. This guarantees that the support 100 supports the first antenna body 210 without making the antenna system too large. It is also understood that the orthographic projections of the first electrical feed line 230 and the first ground feed line 220 onto the support 100 are also located within the support 100, so that the support 100 can better support the first ground feed line 220 and the first electrical feed line 230.

[0044] Furthermore, the end faces of the first antenna section 212, the second antenna section 213, the third antenna section 214, and the fourth antenna section 215, all facing away from the center section 211, are flush with the side surface of the support 100. This allows the first antenna body 210 to have a larger area and a longer length, thereby ensuring the resonance adjustment performance and radiation performance of the first antenna 200. In this embodiment, when the support 100 is square, the end faces of the first antenna section 212, the second antenna section 213, the third antenna section 214, and the fourth antenna section 215, all facing away from the center section 211, are flush with the four side surfaces of the support 100.

[0045] In this embodiment, the shape of the first antenna body 210 can be varied. For example, the first antenna body 210 in this embodiment is flower-shaped.

[0046] Furthermore, along the direction away from the center portion 211, the widths of the first antenna portion 212, the second antenna portion 213, the third antenna portion 214, and the fourth antenna portion 215 gradually increase, resulting in relatively large areas for all four antenna portions. In this embodiment, the shape and size of the first antenna portion 212 are the same as those of the second antenna portion 213, and the shape and size of the third antenna portion 214 are the same as those of the fourth antenna portion 215. The area of ​​the first antenna portion 212 is half the area of ​​the third antenna portion 214.

[0047] In some optional embodiments, the orthographic projection of the second antenna body 310 onto the support 100 is located within the support 100, and the end face of the second antenna body 310 away from the first antenna body 210 is flush with the side of the support 100, so that the second antenna body 310 can have a large length in a limited space, thereby improving the impedance adjustment capability.

[0048] In this embodiment, the second antenna body 310 can be an integral structure or a split structure. As shown in FIG7, the second antenna body 310 includes a fifth antenna section 311, a sixth antenna section 312, and a seventh antenna section 313. The sixth antenna section 312 and the seventh antenna section 313 are spaced apart and connected to the same side of the fifth antenna section 311; that is, there is a gap between the sixth antenna section 312 and the seventh antenna section 313, and the fifth antenna section 311, the sixth antenna section 312, and the seventh antenna section 313 form a third groove 314. In the arrangement direction of the sixth antenna section 312 and the seventh antenna section 313, the sixth antenna section 312 is closer to the first antenna 200 body than the seventh antenna section 313. For example, as shown in FIG5, the sixth antenna section 312 is closer to the second antenna section 213 than the seventh antenna section 313. Both the second ground feed line 320 and the second electrical feed line 330 are electrically connected to the end of the seventh antenna section 313 that is away from the fifth antenna section 311, making both the second ground feed line 320 and the second electrical feed line 330 relatively long.

[0049] For example, the second ground feed line 320 is electrically connected to the second antenna section 213, and the second ground feed line 320 has a second groove 321. One end of the second electrical feed line 330 is located in the second groove 321 and there is a gap between it and the second ground feed line 320. The other end of the second electrical feed line 330 extends toward the second mounting area 120 and is electrically connected to the second antenna body 310.

[0050] In this embodiment, the second ground feed line 320 can be an integral structure or a split structure. In some optional embodiments, the second ground feed line 320 includes a ground feed plate 322, a first ground feed section 323, and a second ground feed section 324 connected in sequence. A second groove 321 is disposed on the ground feed plate 322, the first ground feed section 323 is connected to the slotted end of the ground feed plate 322 and extends along a first direction X, and the second ground feed section 324 is disposed at an angle to the first ground feed section 323. In this embodiment, the second ground feed section 324 is electrically connected to the seventh antenna section 313.

[0051] In this embodiment, the second electrical feed line 330 can be an integral structure or a split structure. Optionally, the second electrical feed line 330 includes a third electrical feed section 331 and a fourth electrical feed section 332 for connection. One end of the third electrical feed section 331 is located in the second groove 321 and extends along the first direction X. The fourth electrical feed section 332 is set at an angle to the third electrical feed section 331 and is parallel to the second ground feed section 324. In this embodiment, the fourth electrical feed section 332 is electrically connected to the seventh antenna section 313.

[0052] In some optional embodiments, the second antenna 300 further includes a third antenna body 340, which is disposed on the second mounting surface 102 and electrically connected to the end of the sixth antenna section 312 opposite to the fifth antenna section 311. By providing the third antenna body 340, the length of the second antenna body 310 can be adjusted, allowing for a longer length and enabling the antenna system to resonate at 2.4 GHz, thus improving the resonance effect of the antenna system. Exemplarily, one end face of the third antenna body 340 is flush with one side of the support 100. The third antenna body 340 can be electrically connected to the second antenna body 310 via at least one metal post 800.

[0053] In some optional embodiments, based on the support body 100 having a side length of 15mm and a thickness of 1mm, this embodiment provides specific dimensions for the first antenna body 210.

[0054] As shown in Figure 6, the length of the side of the first antenna section 212 facing the second antenna body 310 in the first direction X is L1, and the length of the end of the first antenna section 212 away from the center section 211 in the second direction Y is L2. The side of the first antenna section 212 away from the second antenna body 310 includes a first segment, a second segment, and a third segment connected in sequence. The first segment is connected to the end of the first antenna section 212 away from the center section 211 and has a length of L3 in the first direction X; the length of the second segment is L4, and the length of the third segment is L5.

[0055] The fourth antenna section 215, facing the first antenna section 212, includes a fourth segment, a fifth segment, and a sixth segment. The length of the fourth segment is L5; the length of the fifth segment is L4; the angle between the sixth segment and the fifth segment is greater than 90 degrees and less than 180 degrees; and the length of the sixth segment is L6. The edge of the fourth antenna section 215 away from the center section 211 has a length of L7 in the first direction X, and the maximum length of the fourth antenna section 215 in the first direction X is L8. The fourth antenna section 215 has an axisymmetric structure, with the axis of symmetry extending along the second direction Y.

[0056] The third antenna section 214, facing the fourth antenna section 215, includes a seventh segment, an eighth segment, and a ninth segment connected in sequence. The seventh segment is closer to the center section 211 than the eighth segment. The length of the seventh segment is L5; the length of the eighth segment is L4; and the length of the ninth segment is L3. The angle between the ninth segment and the eighth segment is greater than 90 degrees and less than 180 degrees. The length of the edge of the end of the third antenna section 214 facing away from the center section 211 is L9. The fourth antenna section 215 has an axisymmetric structure, with the axis of symmetry extending along the first direction X.

[0057] The second antenna section 213, facing the third antenna section 214, includes a tenth segment, an eleventh segment, and a twelfth segment connected in sequence. The tenth segment is closer to the center section 211 than the eleventh segment. The length of the tenth segment is L5; the length of the eleventh segment is L4; and the length of the twelfth segment is L3. The length of the edge of the end of the second antenna section 213 away from the center section 211 is L10, and the length of the second antenna section 213 facing the second antenna body 310 in the second direction Y is L11.

[0058] For example, the value range of L1 is 7mm-8mm. For example, L1 = 7mm, 7.5mm, 8mm. The value range of L2 is 3.2mm-3.7mm. For example, L2 = 3.5mm, 3.51mm, 3.7mm. The value range of L3 is 2mm-2.5mm. For example, L3 = 2mm, 2.35mm, 2.5mm. The value range of L4 is 3.5mm-4mm. For example, L4 = 3.5mm, 3.75mm, 4mm. The value range of L5 is 1.2mm-1.7mm. For example, L5 = 1.2mm, 1.5mm, 1.7mm. The value range of L6 is 1.5mm-2mm. For example, L6 = 1.5mm, 1.85mm, 2mm. The value range of L7 is 5.2mm-5.7mm. For example, L7 = 6.2mm, 6.58mm, 6.7mm. L8's value range is 6.7mm-6.9mm. For example, L8 = 6.7mm, 6.83mm, 6.9mm. L9's value range is 6.8mm-7.2mm. For example, L9 = 6.8mm, 7.01mm, 7.2mm. L10's value range is 3mm-3.5mm. For example, L10 = 3mm, 3.26mm, 3.5mm. L11's value range is 7.5mm-7.8mm. For example, L11 = 7.5mm, 7.75mm, 7.8mm.

[0059] In some optional embodiments, based on the support body 100 having a side length of 15mm and a thickness of 1mm, this embodiment provides specific dimensions for the second antenna body 310.

[0060] As shown in Figure 7, the outline of the second antenna body 310 is a rectangular sheet structure with a length of L13 and a width of L12. That is, the length of the fifth antenna section 311 in the first direction X is L12. The length of the end of the sixth antenna section 312 facing away from the fifth antenna section 311 in the first direction X is L14. The side of the sixth antenna section 312 facing the seventh antenna section 313 includes a thirteenth segment and a fourteenth segment. The thirteenth segment extends along the second direction Y and has a length of L15. The angle between the fourteenth segment and the thirteenth segment is greater than 90 degrees and less than 180 degrees. The length of the fourteenth segment is L16. The interval between the sixth antenna section 312 and the seventh antenna section 313 is L17. The seventh antenna section 313 includes a fifteenth segment and a sixteenth segment. The length of the fifteenth segment is L18, and the sixteenth segment extends along the second direction Y and has a length of L19.

[0061] For example, the value range of L12 is 6.5mm-7mm. For instance, L12 = 6.5mm, 6.75mm, 7mm. The value range of L13 is 6.8mm-7.2mm. For instance, L13 = 6.8mm, 7mm, 7.2mm. The value range of L14 is 3.4mm-3.8mm. For instance, L14 = 3.4mm, 3.65mm, 3.8mm. The value range of L15 is 1mm-1.5mm. For instance, L15 = 1mm, 1.18mm, 1.5mm. The value range of L16 is 5mm-5.5mm. For instance, L16 = 5mm, 5.17mm, 5.5mm. The value range of L17 is 0.1mm-0.5mm. For instance, L12 = 0.1mm, 0.3mm, 0.5mm. The value range of L18 is 3.5mm-4mm. For example, L12 = 3.5mm, 3.7mm, 4mm. The value range of L19 is 3.8mm-4.2mm. For example, L19 = 3.8mm, 3.94mm, 4.2mm.

[0062] Optionally, as shown in Figures 3 and 4, the antenna system further includes a first radio frequency cable 500, a second radio frequency cable 600, and a ground plane 700. The ground plane 700 is disposed on the second mounting surface 102 and electrically connected to the first antenna body 210. Exemplarily, the ground plane 700 is electrically connected to the first antenna body 210 via at least one metal post 800. The inner conductor of the first radio frequency cable 500 is electrically connected to the first ground feed line 220, and the outer conductor of the first radio frequency cable 500 is fixedly connected to and electrically connected to the ground plane 700. In this embodiment, the inner conductor of the first radio frequency cable 500 is referred to as the first inner conductor 510, and the outer conductor of the first radio frequency cable 500 is referred to as the first outer conductor 520. The first inner conductor 510 is connected to the end of the first ground feed line 220 located in the first groove 221. For example, the first inner conductor 510 can be soldered to the first ground feed line 220. The first outer conductor 520 can be soldered to the ground plane 700.

[0063] The inner conductor of the second RF cable 600 is electrically connected to the second ground feed line 320, and the outer conductor of the second RF cable 600 is fixedly connected to and electrically connected to the ground plane 700. In this embodiment, the inner conductor of the second RF cable 600 is referred to as the second inner conductor 610, and the outer conductor of the second RF cable 600 is referred to as the second outer conductor 620. The second inner conductor 610 is connected to the end of the second ground feed line 320 located in the second groove 321. For example, the second inner conductor 610 can be soldered to the second ground feed line 320. The second outer conductor 620 can be soldered to the ground plane 700.

[0064] In this embodiment, a ground plane 700 is provided on the second mounting surface 102. The first radio frequency cable 500 and the second radio frequency cable 600 are welded on the ground plane 700, which realizes the fixation of the first radio frequency cable 500 and the second radio frequency cable 600. It can also improve the problem of poor consistency caused by the difference in welding of radio frequency cables and improve the consistency between the first radio frequency cable 500 and the second radio frequency cable 600.

[0065] For example, insulators are provided between the first inner conductor 510 and the first outer conductor 520, and between the second inner conductor 610 and the second outer conductor 620, to achieve insulation. Sheaths are fitted over both the first outer conductor 520 and the second outer conductor 620 to protect them. For instance, the first inner conductor 510 and the second inner conductor 610 can both be made of silver-plated copper wire with a diameter of 7*0.08mm; the insulator is made of polytetrafluoroethylene propylene with a diameter of 0.68mm; the outer conductor is made of silver-plated copper wire braid, and the sheath is made of polytetrafluoroethylene propylene with a diameter of 1.13mm.

[0066] The antenna system provided in this embodiment was subjected to performance testing, and the specific test results are as follows:

[0067] Figure 8 shows the S11 parameters of the first antenna 200 provided in this embodiment. The S11 parameter characterizes the antenna's return loss, i.e., how much energy is reflected back to the source. The smaller the value of the S11 parameter, the better. In Figure 8, the horizontal axis represents the frequency in GHz; the vertical axis represents the S11 parameter in dB. The first antenna 200 is typically in channel -9, which is 7737MHz to 8237MHz. Within this frequency band, the first antenna 200 meets the design requirement of S11 < -10dB.

[0068] Figure 9 shows the antenna efficiency of the first antenna 200. Antenna efficiency characterizes the energy conversion effectiveness of an antenna, that is, the ratio of the radiated power Pr to the input power Pin, which is called antenna efficiency. The higher the antenna efficiency value, the better, measured in dB. As can be seen from Figure 9, the efficiency of the first antenna 200 is relatively high.

[0069] Figure 10 shows the surface current distribution of the first antenna 200. In Figure 10, the redder the color, the larger the current, and the bluer the color, the smaller the current. As can be seen from Figure 10, the current is mainly concentrated at the edge of the first antenna section 212 towards the second antenna section 213, the edge of the second antenna section 213 towards the first antenna section 212, the first electrical feed line 230, and the first ground feed line 220 of the first antenna 200.

[0070] Figure 11 shows the 3D radiation pattern of the first antenna 200. In Figure 11, the redder the color, the stronger the radiation, and the bluer the color, the weaker the radiation. As can be seen from Figure 11, when the antenna system is placed vertically, the antenna radiates in the horizontal direction.

[0071] Figure 12 shows the 2D radiation pattern of the first antenna 200. The 2D diagram in Figure 12 is a horizontal cross-section of the antenna system when it is placed vertically. The outer coordinates are directional coordinates from -180° to +180°, and the inner coordinates are closed curves representing radiation. Larger values ​​indicate stronger radiation, and smaller values ​​indicate weaker radiation; the unit is dBi. Figure 12 shows that the strongest radiation point (2.481 dBi) occurs near -23.25°, and the weakest radiation point (-0.3965 dBi) occurs near 92.9°.

[0072] Figure 13 shows the 2D radiation pattern of the first antenna 200. The 2D diagram in Figure 13 is a horizontal cross-section of the antenna system when it is placed horizontally. The outer coordinates are directional coordinates from 0° to 360°, and the inner coordinates are closed curves of radiation. The larger the value, the stronger the radiation; the smaller the value, the weaker the radiation. The unit is dBi. The diagram shows that the strongest radiation point appears near 197.0°, with an intensity of 3.113 dBi; and the weakest radiation point appears near 106.9°, with an intensity of -3.454 dBi.

[0073] Figure 14 shows the S11 parameters of the second antenna 300. The S11 parameter characterizes the antenna's return loss, i.e., how much energy is reflected back to the source. The smaller the value of the S11 parameter, the better. In Figure 14, the horizontal axis represents frequency in GHz; the vertical axis represents the S11 parameter in dB.

[0074] Figure 15 shows the antenna efficiency of the second antenna 300. As can be seen from Figure 15, the antenna efficiency of the second antenna 300 is also relatively high.

[0075] Figure 16 shows the surface current distribution of the second antenna 300. In Figure 16, the redder the color, the larger the current, and the bluer the color, the smaller the current. As can be seen from Figure 16, the current is mainly concentrated at the edge of the sixth antenna section 312 towards the seventh antenna section 313, the edge of the seventh antenna section 313 towards the sixth antenna section 312, the edge of the center section 211 towards the second antenna body 310, the first electrical feed line 230, and the first ground feed line 220 of the second antenna 300.

[0076] Figure 17 shows the 3D radiation pattern of the second antenna 300. In Figure 17, the redder the color, the stronger the radiation, and the bluer the color, the weaker the radiation. As can be seen from Figure 17, when the antenna system is placed vertically, the antenna radiates in the horizontal direction.

[0077] Figure 18 shows the 2D radiation pattern of the second antenna, 300. The 2D diagram in Figure 18 is a horizontal cross-section of the antenna system placed vertically. The outer coordinates are -180° to +180°, and the inner coordinates are closed curves representing radiation. Larger values ​​indicate stronger radiation, and smaller values ​​indicate weaker radiation; the unit is dBi. Figure 18 shows that the strongest radiation occurs near 174°, with an intensity of 1.189 dBi, while the weakest radiation occurs near 85°, with an intensity of 0.4566 dBi.

[0078] Figure 19 shows the 2D radiation pattern of the second antenna, 300°. The 2D diagram in Figure 13 is a horizontal cross-section of the antenna system when it is placed horizontally. The outer coordinates are directional coordinates from 0° to 360°, and the inner coordinates are closed curves representing radiation. The larger the value, the stronger the radiation; the smaller the value, the weaker the radiation. The unit is dBi. The diagram shows that the strongest radiation point appears near 68°, with an intensity of 1.275 dBi; and the weakest radiation point appears near 327°, with an intensity of -2.5 dBi.

[0079] Figure 20 shows the S21 parameters between the first antenna 200 and the second antenna 300. The S21 parameter characterizes the isolation between the two antennas; the smaller the value, the less mutual influence between the two antennas, measured in dB. As can be seen from Figure 20, the S21 isolation between the second antenna 300 (frequency band 2402MHz~2483MHz) and the first antenna 200 (common frequency band 7737MHz~8237MHz) is less than -20dB, indicating that the mutual influence between the two antennas is small, and the isolation between the two antennas meets the design requirements.

[0080] Secondly, this embodiment also provides an electronic device, including the antenna system as described in the first aspect. The electronic device provided in this embodiment can be smaller in size, and the space reserved for the antenna system can also be smaller.

[0081] For example, electronic devices can be smart terminals such as speakers, soundbars, televisions, and locators.

[0082] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the appended claims.

[0083] 100: Support 101: First mounting surface 102: Second mounting surface 110: First Installation Area 111: Gap 120: Second Installation Area 200: First Antenna 210: First antenna body 211: Central Department 212: First Antenna Section 213: The second day's line section 214: Third Antenna Section 215: Fourth Antenna Section 220: First feeder line 221: First Groove 230: First power feeder line 231: First Electric Feed Section 232: Second Electric Feed Section 300: Second Line 310: The Second Line Main Body 311: Fifth Antenna Section 312: Sixth Antenna Section 313: Seventh Antenna Section 314: Third Groove 320: Second feeder line 321: Second groove 322: Ground feeder 323: First Feeder Section 324: Second Feeder Section 330: Second power feeder line 331: Third Electric Feed Section 332: Fourth Electric Feed Section 340: Third antenna body 400: Clearance Zone 500: First RF cable 510: First inner conductor 520: First outer conductor 600: Second RF cable 610: Second inner conductor 620: Second outer conductor 700: Flooring 800: Metal Column L1~L19: Length X: First direction Y: Second direction

Claims

1. An antenna system, comprising: A support body (100) includes a first mounting area (110) and a second mounting area (120), the first mounting area (110) having a notch (111) and the second mounting area (120) being located in the notch (111); a first antenna (200) includes a first antenna body (210) disposed in the first mounting area (110); a second antenna (300) includes a second antenna body (310) disposed in the second mounting area (120), and there is a gap between the second antenna body (310) and the first antenna body (210) to form a clearance area (400) between the first antenna (200) and the second antenna (300); the first antenna (200) and the second antenna (300) are antennas of different types; The support body (100) has a first mounting surface (101) and a second mounting surface (102) opposite to the first mounting surface (101). The first antenna body (210) and the second antenna body (310) are both disposed on the first mounting surface (101). The first antenna (200) further includes a first ground feed line (220) and a first electrical feed line (230). The first ground feed line (220) and the first electrical feed line (230) are both disposed on the second mounting surface (102). The first ground feed line (220) is electrically connected to the first antenna body (210). The feed line (230) is coupled to the first antenna body (210), and the first electrical feed line (230) is insulated from the first ground feed line (220); the second antenna (300) also includes a second ground feed line (320) and a second electrical feed line (330), both the second ground feed line (320) and the second electrical feed line (330) are disposed on the second mounting surface (102), the second ground feed line (320) is electrically connected to both the first antenna body (210) and the second antenna body (310), and the second electrical feed line (330) is electrically connected to the second antenna body (310).

2. The antenna system according to claim 1, wherein, The first antenna body (210) includes a central portion (211) and a first antenna portion (212), a second antenna portion (213), a third antenna portion (214), and a fourth antenna portion (215) connected sequentially along the circumferential direction to the central portion (211). The first antenna portion (212) and the third antenna portion (214) are arranged opposite to each other in a first direction (X), and the second antenna portion (213) and the fourth antenna portion (215) are arranged opposite to each other in a second direction (Y). The second antenna body (310) is located in the space formed by the first antenna portion (212) and the second antenna portion (213). The area of ​​the first antenna portion (212) and the area of ​​the second antenna portion (213) are both smaller than the area of ​​the third antenna portion (214), and the area of ​​the first antenna portion (212) and the area of ​​the second antenna portion (213) are both smaller than the area of ​​the fourth antenna portion (215). The first direction (X) and the second direction (Y) intersect.

3. The antenna system according to claim 2, wherein, The support (100) has a square structure; the orthographic projection of the first antenna body (210) onto the support (100) is located within the support (100); the end faces of the first antenna portion (212) away from the center portion (211), the second antenna portion (213) away from the center portion (211), the third antenna portion (214) away from the center portion (211), and the fourth antenna portion (215) away from the center portion (211) are all located within the support. The sides of (100) are flush; along the direction away from the center (211), the widths of the first antenna part (212), the second antenna part (213), the third antenna part (214) and the fourth antenna part (215) gradually increase and then gradually decrease; the orthographic projection of the second antenna body (310) on the support (100) is located inside the support (100), and the end face of the second antenna body (310) away from the first antenna body (210) is flush with the side of the support (100).

4. The antenna system according to claim 1, wherein, The second antenna body (310) includes a fifth antenna section (311), a sixth antenna section (312), and a seventh antenna section (313). The sixth antenna section (312) and the seventh antenna section (313) are spaced apart and connected to the same side of the fifth antenna section (311). In the arrangement direction of the sixth antenna section (312) and the seventh antenna section (313), the sixth antenna section (312) is closer to the first antenna (200) body than the seventh antenna section (313). The second ground feed line (320) and the second electrical feed line (330) are both electrically connected to the end of the seventh antenna section (313) away from the fifth antenna section (311).

5. The antenna system according to claim 4, wherein, The second antenna (300) also includes a third antenna body (340), which is disposed on the second mounting surface (102) and electrically connected to one end of the sixth antenna part (312) away from the fifth antenna part (311).

6. The antenna system according to any one of claims 1 to 5, wherein, The first ground feed line (220) has a first groove (221), and one end of the first electrical feed line (230) is located in the first groove (221); the second ground feed line (320) is electrically connected to the second antenna section (213), and the second ground feed line (320) has a second groove (321), one end of the second electrical feed line (330) is located in the second groove (321), and the other end of the second electrical feed line (330) extends toward the second mounting area (120) and is electrically connected to the second antenna body (310).

7. The antenna system according to any one of claims 1 to 5, wherein, The antenna system further includes a first radio frequency cable (500), a second radio frequency cable (600), and a ground plane (700). The ground plane (700) is disposed on the second mounting surface (102) and electrically connected to the first antenna body (210). The inner conductor of the first radio frequency cable (500) is electrically connected to the first ground feed line (220) of the first antenna (200), and the outer conductor of the first radio frequency cable (500) is fixedly connected to and electrically connected to the ground plane (700). The inner conductor of the second radio frequency cable (600) is electrically connected to the second ground feed line (320) of the second antenna (300), and the outer conductor of the second radio frequency cable (600) is fixedly connected to and electrically connected to the ground plane (700).

8. The antenna system according to any one of claims 1 to 5, wherein the first antenna (200) is an ultra-wideband antenna and the second antenna (300) is a Bluetooth beacon antenna.

9. An electronic device comprising an antenna system as described in claim 1.

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