Antenna system and electronic equipment

Abstract

The invention belongs to the technical field of antennas, and discloses an antenna system and electronic equipment, the antenna system comprises a support body, a first antenna and a second antenna, the support body comprises a first mounting area and a second mounting area, the first mounting area is provided with a gap, and the second mounting area is located in the gap; the first antenna comprises a first antenna body, and the first antenna body is arranged in the first mounting area; the second antenna comprises a second antenna body, the second antenna body is arranged in the second mounting area, a gap is formed between the second antenna body and the first antenna body to form a clearance area of the first antenna and the second antenna, and the first antenna and the second antenna are different types of antennas. The antenna system provided by the invention has the functions of two types of antennas at the same time, can be small in size, and can be applied to electronic equipment with high space requirements.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to an antenna system and electronic equipment. Background Art

[0002] UWB (Ultra-wide band) is a wireless carrier communication technology that uses broadband pulse communication technology and has strong anti-interference capabilities, which greatly reduces positioning errors and achieves centimeter-level positioning accuracy. UWB positioning technology relies on wireless communications and positioning beacons to achieve real-time tracking and positioning of indoor people and objects. It is widely used in smart factories, unmanned exhibitions and vending systems, modern warehousing and logistics, important personnel and equipment management, intelligent navigation in buildings, and intelligent medical guides in hospitals.

[0003] In the prior art, electronic devices usually include UWB antennas and BLE (Bluetooth beacon; Bluetooth low energy) antennas to improve the positioning effect. UWB antennas and BLE antennas are two independent components, and both are arranged in the housing of the electronic device. Moreover, both UWB antennas and BLE antennas require plate-like structures such as circuit boards to carry them, which results in the electronic device requiring a large antenna installation space and installation area, which in turn results in the UWB antenna and BLE antenna being unable to be used simultaneously in electronic devices with high space requirements. Summary of the invention

[0004] The first object of the present invention is to provide an antenna system to solve the technical problem of large size existing in the prior art.

[0005] The second object of the present invention is to provide an electronic device that can have the functions of two antennas at the same time, and the space reserved for the antenna system can be smaller, which is conducive to miniaturization.

[0006] As conceived above, the technical solution adopted by the present invention is:

[0007] Antenna system, comprising:

[0008] A support body, the support body comprising a first installation area and a second installation area, the first installation area having a notch, and the second installation area being located in the notch;

[0009] A first antenna, comprising a first antenna body, wherein the first antenna body is disposed in the first installation area;

[0010] A second antenna, comprising a second antenna body, wherein the second antenna body is disposed in the second installation area, and a gap is provided between the second antenna body and the first antenna body to form a clearance area between the first antenna and the second antenna;

[0011] The first antenna and the second antenna are antennas of different types.

[0012] Optionally, the support body has a first mounting surface and a second mounting surface disposed opposite to the first mounting surface, and the first antenna body and the second antenna body are both disposed on the first mounting surface;

[0013] The first antenna further includes a first ground feed line and a first electric feed line, both of which are arranged on the second mounting surface, the first ground feed line is electrically connected to the first antenna body, the first electric feed line is coupled to the first antenna body, and the first electric feed line is insulated from the first ground feed line;

[0014] The second antenna also includes a second ground feed line and a second electric feed line, both of which are arranged on the second mounting surface, the second ground feed line is electrically connected to the first antenna body and the second antenna body, and the second electric feed line is electrically connected to the second antenna body.

[0015] 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 sequentially connected to the central portion along a circumferential direction, the first antenna portion and the third antenna portion are arranged opposite to each other in a first direction, the second antenna portion and the fourth antenna portion are arranged opposite to each other in a second direction, and the second antenna body is located in a space formed by the first antenna portion and the second antenna portion;

[0016] An area of ​​the first antenna portion and an area of ​​the second antenna portion are both smaller than an area of ​​the third antenna portion, and an area of ​​the first antenna portion and an area of ​​the second antenna portion are both smaller than an area of ​​the fourth antenna portion;

[0017] The first direction intersects with the second direction.

[0018] Optionally, the second ground feed line is electrically connected to the second antenna part, and the second ground feed line has a second groove, one end of the second ground feed line is located in the second groove, and the other end of the second ground feed line extends to the second installation area and is electrically connected to the second antenna body.

[0019] Optionally, the support body is a square structure;

[0020] The orthographic projection of the first antenna body on the support body is located within the support body, and the end surface of the first antenna part away from the central part, the end surface of the second antenna part away from the central part, the end surface of the third antenna part away from the central part, and the end surface of the fourth antenna part away from the central part are all flush with the side surface of the support body;

[0021] and / or, along a direction away from the central portion, the widths of the first antenna portion, the second antenna portion, the third antenna portion, and the fourth antenna portion first gradually increase and then gradually decrease;

[0022] And / or, the orthographic projection of the second antenna body on the support body is located within the support body, and an end surface of the second antenna body facing away from the first antenna body is flush with a side surface of the support body.

[0023] Optionally, the second antenna body includes a fifth antenna portion, a sixth antenna portion and a seventh antenna portion, the sixth antenna portion and the seventh antenna portion are spaced apart and connected to the same side of the fifth antenna portion, and in the arrangement direction of the sixth antenna portion and the seventh antenna portion, the sixth antenna portion is closer to the first antenna body than the seventh antenna portion; the second ground feed line and the second power feed line are both electrically connected to an end of the seventh antenna portion facing away from the fifth antenna portion.

[0024] Optionally, the second antenna further includes a third antenna body, wherein the third antenna body is disposed on the second mounting surface and is electrically connected to an end of the sixth antenna portion facing away from the fifth antenna portion.

[0025] 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;

[0026] The second ground feed line is electrically connected to the second antenna part, 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 to the second installation area and is electrically connected to the second antenna body.

[0027] Optionally, the antenna system also includes a first RF cable, a second RF cable and a ground plate, the ground plate is arranged on the second mounting surface and electrically connected to the first antenna body; the inner conductor of the first RF cable is electrically connected to the first ground feed line of the first antenna, and the outer conductor of the first RF cable is fixedly connected and electrically connected to the ground plate; the inner conductor of the second RF cable is electrically connected to the second ground feed line of the second antenna, and the outer conductor of the second RF cable is fixedly connected and electrically connected to the ground plate.

[0028] Optionally, the first antenna is an ultra-wideband antenna, and the second antenna is a Bluetooth beacon antenna.

[0029] An electronic device is provided, comprising the antenna system as described above.

[0030] The antenna system and electronic device provided by the present invention have at least the following beneficial effects:

[0031] The antenna system includes a first antenna and a second antenna of different types. The first antenna and the second antenna are both arranged on a support body, so that the antenna system has both the function of the first antenna and the function of the second antenna. The first antenna and the second antenna are arranged on the same support body, which can reduce the space required for the antenna system, so that the volume and area of ​​the antenna system can be smaller, so that the antenna system has a smaller volume while having richer 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 the electronic devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0033] Figure 1 is a structural schematic diagram of an antenna system provided by an embodiment of the present invention;

[0034] Figure 2 is a top view of an antenna system provided by an embodiment of the present invention;

[0035] Figure 3 is a bottom view of an antenna system provided by an embodiment of the present invention;

[0036] Figure 4 is an exploded view of an antenna system provided by an embodiment of the present invention;

[0037] Figure 5 is a schematic diagram of the structure of a part of the antenna system provided by an embodiment of the present invention;

[0038] Figure 6 is a structural schematic diagram of a first antenna provided by an embodiment of the present invention;

[0039] Figure 7 is a schematic diagram of the structure of a second antenna provided by an embodiment of the present invention;

[0040] Figure 8 is a curve diagram of the S11 parameter of the first antenna provided by an embodiment of the present invention;

[0041] Fig. 9 is a curve diagram of the antenna efficiency of the first antenna provided by an embodiment of the present invention;

[0042] Fig.10 is a surface current distribution diagram of a first antenna provided by an embodiment of the present invention;

[0043] Fig.11 is the 3D radiation pattern of the first antenna provided in an embodiment of the present invention;

[0044] Fig.12 is a first 2D radiation pattern of a first antenna provided in an embodiment of the present invention;

[0045] Fig.13 is a second 2D radiation pattern of the first antenna provided in an embodiment of the present invention;

[0046] Fig.14 is a curve diagram of the S11 parameter of the second antenna provided by an embodiment of the present invention;

[0047] Fig.15 is a curve diagram of the antenna efficiency of the second antenna provided by an embodiment of the present invention;

[0048] Fig.16 is a surface current distribution diagram of the second antenna provided by an embodiment of the present invention;

[0049] Fig.17 is a 3D radiation pattern of the second antenna provided by an embodiment of the present invention;

[0050] Fig.18 is a first 2D radiation pattern of the second antenna provided by an embodiment of the present invention;

[0051] Fig.19 is a second 2D radiation pattern of the second antenna provided by an embodiment of the present invention;

[0052] Fig. 20 It is a S21 parameter curve diagram between the first antenna and the second antenna provided by an embodiment of the present invention.

[0053] In the figure:

[0054] 100, support body; 101, first mounting surface; 102, second mounting surface; 110, first mounting area; 111, notch; 120, second mounting area;

[0055] 200, first antenna; 210, first antenna body; 211, center portion; 212, first antenna portion; 213, second antenna portion; 214, third antenna portion; 215, fourth antenna portion; 220, first ground feed line; 221, first groove; 230, first electric feed line; 231, first electric feed section; 232, second electric feed section;

[0056] 300, second antenna; 310, second antenna body; 311, fifth antenna portion; 312, sixth antenna portion; 313, seventh antenna portion; 314, third groove; 320, second ground feed line; 321, second groove; 322, ground feed sheet; 323, first ground feed section; 324, second ground feed section; 330, second electric feed line; 331, third electric feed section; 332, fourth electric feed section; 340, third antenna body;

[0057] 400, Clearance Zone;

[0058] 500, first radio frequency cable; 510, first inner conductor; 520, first outer conductor; 600, second radio frequency cable; 610, second inner conductor; 620, second outer conductor; 700, ground plate; 800, metal column;

[0059] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0060] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0061] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0062] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0064] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0065] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or there may be a central element.

[0066] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0067] On the first aspect, this embodiment provides an antenna system that can integrate two antennas together, so that on the basis of having two antenna functions, the size of the antenna system can be smaller, reducing the space occupied by the antenna, so that the antenna can be used in electronic devices with a smaller reserved installation space.

[0068] For example, Figures 1 to 7 As shown, the antenna system includes a support body 100 , a first antenna 200 , and a second antenna 300 . The first antenna 200 and the second antenna 300 are both disposed on the support body 100 .

[0069] like Figure 2As shown, the support body 100 includes a first installation area 110 and a second installation area 120. The first installation area 110 has a notch 111, and the second installation area 120 is located in the notch 111, so that the support body 100 can be fully utilized. The first antenna 200 includes a first antenna body 210, and the first antenna body 210 is arranged in the first installation area 110. The second antenna 300 includes a second antenna body 310, and the second antenna body 310 is arranged in the second installation area 120. The first antenna body 210 and the second antenna body 310 are supported by the support body 100. In addition, 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 setting of the clearance area 400 ensures that the first antenna 200 and the second antenna 300 do not interfere with each other, so as to achieve better performance.

[0070] It should be noted that the first antenna 200 and the second antenna 300 in this embodiment are different types of antennas. It can also be considered that the first antenna 200 and the second antenna 300 have different functions and different operating frequencies, etc., which are not limited in this embodiment. For example, the first antenna 200 in this embodiment is an ultra-wideband UWB antenna, and the second antenna 300 is a BLE antenna.

[0071] In the antenna system provided in this embodiment, the first antenna 200 and the second antenna 300 are both arranged on the support body 100, so that the antenna system has both the function of the first antenna 200 and the function of the second antenna 300. The first antenna 200 and the second antenna 300 are arranged on the same support body 100, which can reduce the space required for the antenna system, so that the volume and area of ​​the antenna system can be smaller, so that the antenna system has a smaller volume while having richer functions, and can be used in electronic devices with higher size requirements. The electronic devices do not need to reserve a large installation space, which is conducive to the miniaturization of the electronic devices.

[0072] In some optional embodiments, the support body 100 is a plate structure, and the thickness may be 0.8 mm to 1.2 mm. For example, the thickness of the support body 100 is 0.8 mm, 1.0 mm, or 1.2 mm. The material of the support body 100 may be an FR4 epoxy glass fiber dielectric substrate, for example, the support body 100 may be a PCB board. The dielectric constant of the support body 100 is 4.0-4.5, for example, the dielectric constant of the support body 100 is 4.0, 4.1, 4.2, or 4.5. The support body 100 may be rectangular, square, circular, trapezoidal, etc., which is not limited in this embodiment. In this embodiment, Figure 1As shown, the support body 100 is square, so that the support body 100 is relatively regular, which is convenient for placing the antenna system in the electronic device. In this embodiment, the side length of the support body 100 is 10mm-18mm. For example, the side length of the support body 100 is 10mm, 12mm, 15mm, 16mm, and 18mm.

[0073] For example, Figure 1 As shown, the support body 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 body 100. The first antenna body 210 and the second antenna body 310 are both disposed on the first mounting surface 101.

[0074] like Figure 3 As shown, the first antenna 200 also includes a first ground feed line 220 and a first electric feed line 230. The first ground feed line 220 and the first electric feed line 230 are both arranged on the second mounting surface 102 to make full use of the layout space on the support body 100. In this embodiment, the first ground feed line 220 is electrically connected to the first antenna body 210, and the first electric feed line 230 is insulated from the first ground feed line 220. The first electric feed line 230 is coupled to the first antenna body 210, so that the first electric feed line 230 is coupled to the first antenna body 210 to achieve 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 through at least one metal column 800 passing through the support body 100. The material of the metal column 800 can be copper or other metals, which is not limited in this embodiment.

[0075] Optionally, the second antenna 300 further includes a second ground feed line 320 and a second electric feed line 330. The second ground feed line 320 and the second electric feed line 330 are both arranged on the second mounting surface 102 to make full use of the layout space on the support body 100. In this embodiment, the second ground feed line 320 is electrically connected to the first antenna body 210 and the second antenna body 310. By setting the second ground feed line 320, it is possible to adjust the impedance of the first antenna body 210 and the second antenna body 310, thereby adjusting the impedance of the antenna system, and the first antenna 200 and the second antenna 300 can be fused together through the second ground feed line 320, so that the first antenna 200 and the second antenna 300 share a ground feed. The second electric feed line 330 is electrically connected to the second antenna body 310 to extend the second electric feed line 330 to the second antenna body 310.

[0076] In some optional embodiments, the second ground feed line 320 and the first antenna body 210 may be electrically connected through at least one metal column 800 passing through the support body 100. The second ground feed line 320 and the second antenna body 310 may be electrically connected through at least one metal column 800 passing through the support body 100. The second power feed line 330 and the second antenna body 310 may be electrically connected through at least one metal column 800 passing through the support body 100.

[0077] The first antenna body 210 in this embodiment is an integrated structure, and may also be a split structure. Figure 5 or Figure 6 As shown, 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 which are sequentially connected to the central portion 211 along the circumferential direction. The first antenna portion 212 and the third antenna portion 214 are arranged opposite to each other in the first direction X, the second antenna portion 213 and the fourth antenna portion 215 are arranged opposite to each other in the second direction Y, and 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 with the second direction Y, and the first direction X and the second direction Y are both perpendicular to the thickness direction of the support body 100.

[0078] In some optional embodiments, such as Figure 5 and Figure 6 As shown, 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. For example, the area of ​​the first antenna portion 212 may be half or close to half of the area of ​​the third antenna portion 214, and the area of ​​the second antenna portion 213 may be half or close to half of the area of ​​the third antenna portion 214, so as to ensure that the first antenna 200 has a larger area and can better match the shape of the second antenna 300. In addition, 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 area of ​​the fourth antenna portion 215 is the same as or close to the area of ​​the third antenna portion 214, which is not limited in this embodiment.

[0079] See also Figure 5, the first ground feed line 220 is electrically connected to the fourth antenna portion 215, and the first ground feed line 220 has a first groove 221, one end of the first electric feed line 230 is located in the first groove 221, and there is a gap between the first electric feed line 230 and the first ground feed line 220. The other end of the first electric feed line 230 is arranged opposite to the first antenna portion 212 in the thickness direction of the support body 100. By arranging one end of the first electric feed line 230 in the first groove 221, the coupling effect of the first electric feed line 230 with the first ground feed line 220 and the first antenna body 210 can be improved, thereby ensuring the adjustment of the resonance of the first antenna 200 and the radiation effect. By arranging the other end of the first electric feed line 230 opposite to the first antenna portion 212 in the thickness direction of the support body 100, the length of the first electric feed line 230 can meet the requirements.

[0080] It should be noted that the location and length of the first feeder line 230 will 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 feeder line 230 having the above structure enable the first antenna 200 to have a larger bandwidth and better resonance performance.

[0081] The first feeder circuit 230 in this embodiment can be an integrated structure or a split structure. Figure 5 As shown, the first power feeding line 230 includes a first power feeding section 231 extending along the first direction X and a second power feeding section 232 arranged at an angle to the first power feeding section 231 and extending toward the first antenna portion 212 away from the fourth antenna portion 215. One end of the first power feeding section 231 is located in the first groove 221, and the second power feeding section 232 is arranged opposite to the first antenna portion 212 in the thickness direction of the support body 100.

[0082] The first ground feed line 220 in this embodiment may be in a sheet shape. Of course, it is understandable that the first ground feed line 220 may also be in other shapes, which is not limited in this embodiment.

[0083] In some optional embodiments, the orthographic projection of the first antenna body 210 on the support body 100 is located inside the support body 100, so that the first antenna body 210 does not protrude from the support body 100, so as to ensure that the support body 100 supports the first antenna body 210, and the size of the antenna system is not too large. Of course, it can be understood that the orthographic projection of the first power feeder line 230 on the support body 100 and the orthographic projection of the first ground feeder line 220 on the support body 100 are also located inside the support body 100, so that the support body 100 can better support the first ground feeder line 220 and the first power feeder line 230.

[0084] Furthermore, the end surface of the first antenna portion 212 away from the center portion 211, the end surface of the second antenna portion 213 away from the center portion 211, the end surface of the third antenna portion 214 away from the center portion 211, and the end surface of the fourth antenna portion 215 away from the center portion 211 are all flush with the side surface of the support body 100, so that the first antenna body 210 can 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 body 100 is square, the end surface of the first antenna portion 212 away from the center portion 211, the end surface of the second antenna portion 213 away from the center portion 211, the end surface of the third antenna portion 214 away from the center portion 211, and the end surface of the fourth antenna portion 215 away from the center portion 211 are flush with the four side surfaces of the support body 100.

[0085] In this embodiment, the first antenna body 210 may have various shapes. For example, the first antenna body 210 in this embodiment is in a flower shape.

[0086] Furthermore, 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 in a direction away from the center portion 211, so that the areas of the first antenna portion 212, the second antenna portion 213, the third antenna portion 214, and the fourth antenna portion 215 are all relatively large. 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 of the area of ​​the third antenna portion 214.

[0087] In some optional embodiments, the orthographic projection of the second antenna body 310 on the support body 100 is located inside the support body 100, and the end surface of the second antenna body 310 facing away from the first antenna body 210 is flush with the side surface of the support body 100, so that the second antenna body 310 can have a larger length within a limited space, thereby improving the impedance adjustment capability.

[0088] The second antenna body 310 in this embodiment can be an integrated structure or a split structure. Figure 7As shown, the second antenna body 310 includes a fifth antenna portion 311, a sixth antenna portion 312 and a seventh antenna portion 313. The sixth antenna portion 312 and the seventh antenna portion 313 are spaced apart and connected to the same side of the fifth antenna portion 311, that is, there is a gap between the sixth antenna portion 312 and the seventh antenna portion 313, and the fifth antenna portion 311, the sixth antenna portion 312 and the seventh antenna portion 313 are surrounded to form a third groove 314. In the arrangement direction of the sixth antenna portion 312 and the seventh antenna portion 313, the sixth antenna portion 312 is closer to the first antenna 200 body than the seventh antenna portion 313. Exemplarily, as Figure 5 As shown, the sixth antenna portion 312 is closer to the second antenna portion 213 than the seventh antenna portion 313. The second ground feed line 320 and the second electric feed line 330 are both electrically connected to an end of the seventh antenna portion 313 away from the fifth antenna portion 311, so that the second ground feed line 320 and the second electric feed line 330 are both longer.

[0089] Exemplarily, the second ground feed line 320 is electrically connected to the second antenna portion 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 the second electrical feed line 330 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.

[0090] The second ground feed line 320 in this embodiment can be an integrated structure or a split structure. In some optional embodiments, the second ground feed line 320 includes a ground feed sheet 322, a first ground feed section 323, and a second ground feed section 324 connected in sequence. Among them, the second groove 321 is arranged on the ground feed sheet 322, the first ground feed section 323 is connected to the slotted end of the ground feed sheet 322, and the first ground feed section 323 extends along the first direction X, and the second ground feed section 324 is arranged 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 portion 313.

[0091] The second feeder line 330 in this embodiment can be an integrated structure or a split structure. Optionally, the second feeder line 330 includes a third feeder section 331 and a fourth feeder section 332 connected to each other, one end of the third feeder section 331 is located in the second groove 321, and the third feeder section 331 extends along the first direction X, the fourth feeder section 332 is arranged at an angle to the third feeder section 331, and the fourth feeder section 332 is parallel to the second ground feeder section 324. In this embodiment, the fourth feeder section 332 is electrically connected to the seventh antenna portion 313.

[0092] 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 an end of the sixth antenna portion 312 away from the fifth antenna portion 311. By providing the third antenna body 340, the length of the second antenna body 310 can be adjusted, so that the length of the second antenna body 310 can be longer, so that the resonance of the antenna system can reach the position of 2.4G, and the resonance effect of the antenna system is improved. Exemplarily, an end face of the third antenna body 340 is flush with a side face of the support body 100. The third antenna body 340 can be electrically connected to the second antenna body 310 through at least one metal column 800.

[0093] In some optional embodiments, based on the support body 100 having a side length of 15 mm and a thickness of 1 mm, this embodiment provides specific dimensions of the first antenna body 210 .

[0094] like Figure 6 As shown, the length of the side of the first antenna portion 212 facing the second antenna body 310 in the first direction X is L1, and the length of the end of the first antenna portion 212 away from the center portion 211 in the second direction Y is L2. The side of the first antenna portion 212 away from the second antenna body 310 includes a first section, a second section, and a third section connected in sequence, the first section is connected to the end of the first antenna portion 212 away from the center portion 211 and has a length of L3 in the first direction X; the length of the second section is L4, and the length of the third section is L5.

[0095] The fourth antenna portion 215 includes a fourth section, a fifth section, and a sixth section on the side facing the first antenna portion 212. The length of the fourth section is L5; the length of the fifth section is L4, the angle between the sixth section and the fifth section is greater than 90 degrees and less than 180 degrees, and the length of the sixth section is L6. The length of the edge of the end of the fourth antenna portion 215 away from the central portion 211 in the first direction X is L7, and the maximum length of the fourth antenna portion 215 in the first direction X is L8. The fourth antenna portion 215 is an axisymmetric structure, and the axis of symmetry extends along the second direction Y.

[0096] The third antenna portion 214 includes a seventh segment, an eighth segment, and a ninth segment connected in sequence on one side facing the fourth antenna portion 215. The seventh segment is closer to the center portion 211 than the eighth segment. The length of the seventh segment is L5; the length of the eighth segment is L4; the length of the ninth segment is L3, and 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 portion 214 facing away from the center portion 211 is L9. The fourth antenna portion 215 is an axisymmetric structure, and the axis of symmetry extends along the first direction X.

[0097] The side of the second antenna portion 213 facing the third antenna portion 214 includes the tenth section, the eleventh section, and the twelfth section connected in sequence. The tenth section is closer to the center portion 211 than the eleventh section. The length of the tenth section is L5; the length of the eleventh section is L4; the length of the twelfth section is L3. The length of the edge of the end of the second antenna portion 213 away from the center portion 211 is L10, and the length of the side of the second antenna portion 213 facing the second antenna body 310 in the second direction Y is L11.

[0098] Exemplarily, 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. The value range of L8 is 6.7mm-6.9mm. For example, L8=6.7mm, 6.83mm, 6.9mm. The value range of L9 is 6.8mm-7.2mm. For example, L9=6.8mm, 7.01mm, 7.2mm. The value range of L10 is 3mm-3.5mm. For example, L10=3mm, 3.26mm, 3.5mm. The value range of L11 is 7.5mm-7.8mm. For example, L11=7.5mm, 7.75mm, 7.8mm.

[0099] In some optional embodiments, based on the support body 100 having a side length of 15 mm and a thickness of 1 mm, this embodiment provides specific dimensions of the second antenna body 310 .

[0100] like Figure 7As shown, the profile 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 portion 311 in the first direction X is L12. The length of the end of the sixth antenna portion 312 away from the fifth antenna portion 311 in the first direction X is L14. The side of the sixth antenna portion 312 facing the seventh antenna portion 313 includes the thirteenth section and the fourteenth section, the thirteenth section extends along the second direction Y, and the length is L15; the angle between the fourteenth section and the thirteenth section is greater than 90 degrees and less than 180 degrees, and the length of the fourteenth section is L16. The interval between the sixth antenna portion 312 and the seventh antenna portion 313 is L17. The seventh antenna portion 313 includes the fifteenth section and the sixteenth section, the length of the fifteenth section is L18, and the sixteenth section extends along the second direction Y, and the length is L19.

[0101] Exemplarily, the value range of L12 is 6.5mm-7mm. For example, L12 = 6.5mm, 6.75mm, 7mm. The value range of L13 is 6.8mm-7.2mm. For example, L13 = 6.8mm, 7mm, 7.2mm. The value range of L14 is 3.4mm-3.8mm. For example, L14 = 3.4mm, 3.65mm, 3.8mm. The value range of L15 is 1mm-1.5mm. For example, L15 = 1mm, 1.18mm, 1.5mm. The value range of L16 is 5mm-5.5mm. For example, L16 = 5mm, 5.17mm, 5.5mm. The value range of L17 is 0.1mm-0.5mm. For example, L12 = 0.1mm, 0.3mm, 0.5mm. The value range of L18 is 3.5mm-4mm. For example, L12 = 3.5 mm, 3.7 mm, 4 mm. The value range of L19 is 3.8 mm-4.2 mm. For example, L19 = 3.8 mm, 3.94 mm, 4.2 mm.

[0102] Alternatively, if Figure 3 and Figure 4As shown, the antenna system further includes a first RF cable 500, a second RF cable 600 and a ground plate 700. The ground plate 700 is provided on the second mounting surface 102 and is electrically connected to the first antenna body 210. Exemplarily, the ground plate 700 is electrically connected to the first antenna body 210 through at least one metal column 800. The inner conductor of the first RF cable 500 is electrically connected to the first ground feed line 220, and the outer conductor of the first RF cable 500 is fixedly connected and electrically connected to the ground plate 700. In this embodiment, the inner conductor of the first RF cable 500 is referred to as the first inner conductor 510, and the outer conductor of the first RF 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 welded to the first ground feed line 220. The first outer conductor 520 and the ground plate 700 can be welded.

[0103] 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 and electrically connected to the ground plate 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 welded to the second ground feed line 320. The second outer conductor 620 and the ground plate 700 can be welded.

[0104] In this embodiment, a grounding plate 700 is provided on the second mounting surface 102, and the first RF cable 500 and the second RF cable 600 are welded through the grounding plate 700, thereby achieving fixation of the first RF cable 500 and the second RF cable 600, and can also improve the problem of poor consistency caused by differences in welding of RF cables, thereby improving the consistency of the first RF cable 500 and the second RF cable 600.

[0105] Exemplarily, an insulator is 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. A sheath is provided outside the first outer conductor 520 and the second outer conductor 620 to protect the first outer conductor 520 and the second outer conductor 620. For example, the first inner conductor 510 and the second inner conductor 610 can 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.

[0106] The antenna system provided in this embodiment was tested for performance, and the specific test results are as follows:

[0107] Figure 8 The S11 parameter of the first antenna 200 provided in this embodiment represents the return loss of the antenna, that is, how much energy is reflected back to the source end. The smaller the value of the S11 parameter, the better. Figure 8 The horizontal axis is the frequency in GHz, and the vertical axis represents the S11 parameter in dB. The first antenna 200 often has channel -9, that is, 7737MHz to 8237MHz. The first antenna 200 meets the design requirement of S11 < -10dB in this frequency band.

[0108] Fig. 9 is the antenna efficiency of the first antenna 200. Antenna efficiency represents the energy conversion efficiency of the antenna, that is, the ratio of the antenna's radiation power Pr to the input power Pin, which is called antenna efficiency. The larger the value of antenna efficiency, the better, in dB. Fig. 9 It can be seen from FIG. 2 that the efficiency of the first antenna 200 is relatively high.

[0109] Fig.10 is the surface current distribution of the first antenna 200. Wherein, Fig.10 The redder the color, the larger the current, and the bluer the color, the smaller the current. Fig.10 It can be seen that the current is mainly concentrated at the edge of the first antenna portion 212 of the first antenna 200 facing the second antenna portion 213 , the edge of the second antenna portion 213 facing the first antenna portion 212 , the first power feed line 230 and the first ground feed line 220 .

[0110] Fig.11 is the 3D radiation pattern of the first antenna 200. Fig.11 The redder the color, the stronger the radiation, and the bluer the color, the weaker the radiation. Fig.11 It can be seen that when the antenna system is placed vertically, the antenna radiates horizontally.

[0111] Fig.12 is the 2D radiation pattern of the first antenna 200. Fig.12 The 2D diagram in the figure is a horizontal cross section of the antenna system placed vertically. The outer coordinates are the direction coordinates -180° to +180°, and the inner part is a closed curve of radiation. The larger the value, the stronger the radiation, and the smaller the value, the weaker the radiation. The unit is dBi. Fig.12 It can be seen that the strongest radiation point appears near -23.25°, with an intensity of 2.481dBi, and the weakest radiation point appears near 92.9°, with an intensity of -0.3965dBi.

[0112] Fig.13 is the 2D radiation pattern of the first antenna 200, Fig.13The 2D diagram in the figure is a horizontal cross section of the antenna system placed horizontally. The outer coordinates are the direction coordinates 0°~360°, and the inner part is a closed curve of radiation. The larger the value, the stronger the radiation, and the smaller the value, the weaker the radiation. The unit is dBi. From the diagram, it can be seen that the strongest radiation point appears near 197.0°, with an intensity of 3.113dBi; the weakest radiation point appears near 106.9°, with an intensity of -3.454dBi.

[0113] Fig.14 is the S11 parameter of the second antenna 300. The S11 parameter represents the return loss of the antenna, that is, how much energy is reflected back to the source end. The smaller the value of the S11 parameter, the better. Fig.14 The horizontal axis is frequency in GHz, and the vertical axis is S11 parameter in dB.

[0114] Fig.15 is the antenna efficiency of the second antenna 300, from Fig.15 It can be seen from FIG. 2 that the antenna efficiency of the second antenna 300 is also relatively high.

[0115] Fig.16 is the surface current distribution of the second antenna 300. Fig.16 The redder the color, the larger the current, and the bluer the color, the smaller the current. Fig.16 It can be seen that the current is mainly concentrated in the transition from the sixth antenna part 312 of the second antenna 300 toward the seventh antenna part 313, the edge of the seventh antenna part 313 toward the sixth antenna part 312, the edge of the center part 211 toward the second antenna body 310, the first power feed line 230 and the first ground feed line 220.

[0116] Fig.17 is the 3D radiation pattern of the second antenna 300. Fig.17 The redder the color, the stronger the radiation, and the bluer the color, the weaker the radiation. Fig.17 It can be seen that when the antenna system is placed vertically, the antenna radiates horizontally.

[0117] Fig.18 is the 2D radiation pattern of the second antenna 300. Fig.18 The 2D diagram in the figure is a horizontal cross section of the antenna system placed vertically. The outer coordinates are the direction coordinates -180° to +180°, and the inner part is a closed curve of radiation. The larger the value, the stronger the radiation, and the smaller the value, the weaker the radiation. The unit is dBi. Fig.18 It can be seen that the strongest radiation point appears near 174°, with an intensity of 1.189dBi, and the weakest radiation point appears near 85°, with an intensity of 0.4566dBi.

[0118] Fig.19is the 2D radiation pattern of the second antenna 300, Fig.13 The 2D diagram in the figure is a horizontal cross section of the antenna system placed horizontally. The outer coordinates are the directional coordinates 0° to 360°, and the inner part is a closed curve of radiation. The larger the value, the stronger the radiation, and the smaller the value, the weaker the radiation. The unit is dBi. From the diagram, it can be seen that the strongest radiation point appears near 68°, with an intensity of 1.275dBi; the weakest radiation point appears near 327°, with an intensity of -2.5dBi.

[0119] Fig. 20 is the S21 parameter between the first antenna 200 and the second antenna 300. The S21 parameter represents the isolation between the two antennas. The smaller the value, the smaller the mutual influence between the two antennas. The unit is dB. Fig. 20 It can be seen that the S21 isolation in the frequency band 2402MHz~2483MHz of the second antenna 300 and the commonly used frequency band 7737MHz~8237MHz of the first antenna 200 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.

[0120] In a second aspect, this embodiment further provides an electronic device, comprising the antenna system in the first aspect. The size of the electronic device provided by this embodiment can be smaller, and the space reserved for the antenna system can also be smaller.

[0121] Exemplarily, the electronic device may be a smart terminal such as a speaker, a sound bar, a television, a locator, etc.

[0122] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An antenna system, characterized in that include: A support body (100), the support body (100) comprising a first installation area (110) and a second installation area (120), the first installation area (110) having a notch (111), and the second installation area (120) being located in the notch (111); A first antenna (200) comprising a first antenna body (210), wherein the first antenna body (210) is arranged in the first installation area (110); A second antenna (300), comprising a second antenna body (310), wherein the second antenna body (310) is disposed in the second installation area (120), and a gap is provided 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.

2. The antenna system according to claim 1, characterized in that The support body (100) comprises a first mounting surface (101) and a second mounting surface (102) arranged opposite to the first mounting surface (101); the first antenna body (210) and the second antenna body (310) are both arranged on the first mounting surface (101); The first antenna (200) further comprises a first ground feed line (220) and a first electric feed line (230), wherein the first ground feed line (220) and the first electric feed line (230) are both arranged on the second mounting surface (102), the first ground feed line (220) is electrically connected to the first antenna body (210), the first electric feed line (230) is coupled to the first antenna body (210), and the first electric feed line (230) is insulated from the first ground feed line (220); The second antenna (300) further comprises a second ground feed line (320) and a second electric feed line (330), wherein the second ground feed line (320) and the second electric feed line (330) are both arranged on the second mounting surface (102), the second ground feed line (320) is electrically connected to the first antenna body (210) and the second antenna body (310), and the second electric feed line (330) is electrically connected to the second antenna body (310).

3. The antenna system according to claim 2, characterized in that: The first antenna body (210) comprises 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 to the central portion (211) in sequence along the circumferential direction, the first antenna portion (212) and the third antenna portion (214) are arranged opposite to each other in a first direction (X), the second antenna portion (213) and the fourth antenna portion (215) are arranged opposite to each other in a second direction (Y), and the second antenna body (310) is located in a 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) intersects with the second direction (Y).

4. The antenna system according to claim 3, characterized in that The support body (100) is a square structure; The orthographic projection of the first antenna body (210) on the support body (100) is located inside the support body (100); the end surface of the first antenna portion (212) facing away from the central portion (211), the end surface of the second antenna portion (213) facing away from the central portion (211), the end surface of the third antenna portion (214) facing away from the central portion (211), and the end surface of the fourth antenna portion (215) facing away from the central portion (211) are all flush with the side surface of the support body (100); and / or, along a direction away from the central 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) first gradually increase and then gradually decrease; And / or, the orthographic projection of the second antenna body (310) on the support body (100) is located inside the support body (100), and the end surface of the second antenna body (310) facing away from the first antenna body (210) is flush with the side surface of the support body (100).

5. The antenna system according to claim 2, characterized in that: The second antenna body (310) includes a fifth antenna portion (311), a sixth antenna portion (312) and a seventh antenna portion (313); the sixth antenna portion (312) and the seventh antenna portion (313) are arranged at intervals and connected to the same side of the fifth antenna portion (311); in the arrangement direction of the sixth antenna portion (312) and the seventh antenna portion (313), the sixth antenna portion (312) is closer to the first antenna (200) body than the seventh antenna portion (313); the second ground feed line (320) and the second power feed line (330) are both electrically connected to an end of the seventh antenna portion (313) that is away from the fifth antenna portion (311).

6. The antenna system according to claim 5, characterized in that: The second antenna (300) further comprises a third antenna body (340), wherein the third antenna body (340) is disposed on the second mounting surface (102) and is electrically connected to an end of the sixth antenna portion (312) which is away from the fifth antenna portion (311).

7. The antenna system according to any one of claims 1 to 6, characterized in that: The first ground feed line (220) has a first groove (221), and one end of the first power feed line (230) is located in the first groove (221); The second ground feed line (320) is electrically connected to the second antenna portion (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 installation area (120) and is electrically connected to the second antenna body (310).

8. The antenna system according to any one of claims 1 to 6, characterized in that: The antenna system further comprises a first radio frequency cable (500), a second radio frequency cable (600) and a ground plate (700); the ground plate (700) is arranged on the second mounting surface (102) and is 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 and electrically connected to the ground plate (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 and electrically connected to the ground plate (700).

9. The antenna system according to any one of claims 1 to 6, characterized in that: The first antenna (200) is an ultra-wideband antenna, and the second antenna (300) is a Bluetooth beacon antenna.

10. An electronic device, characterized in that Comprising the antenna system according to any one of claims 1-9.

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