Antenna system and electronic equipment

Abstract

The utility model 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 installation area and a second installation area, the first installation area is provided with a gap, and the second installation 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 utility model has the functions of two types of antennas at the same time, can be smaller in size, and can be applied to electronic equipment with higher space requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to antenna technical field especially relates to a kind of antenna system and electronic equipment. BACKGROUND

[0002] UWB (Ultra-wide band) is a kind of wireless carrier communication technology, which uses wideband pulse communication technology, has strong anti-interference ability, so that positioning error is greatly reduced, and positioning accuracy can reach centimeter level. UWB positioning technology realizes real-time tracking and positioning of indoor personnel and objects by relying on wireless communication and positioning beacon, and is widely used in intelligent factory, unattended exhibition and vending system, modern warehousing logistics, important personnel and equipment control, intelligent navigation in building, hospital intelligent doctor guiding and multiple fields.

[0003] In the prior art, electronic equipment usually includes UWB antenna and BLE (Bluetooth low energy) antenna to improve the effect of positioning. The UWB antenna and the BLE antenna are two independent components, and are both arranged in the shell of the electronic equipment. The UWB antenna and the BLE antenna both need a board-shaped structure such as a circuit board to bear, which results in that the electronic equipment needs to leave a large antenna installation space and installation area, and further results in that the UWB antenna and the BLE antenna cannot be applied in electronic equipment with high space requirement at the same time. UTILITY MODEL CONTENT

[0004] The first purpose of the utility model is to provide an antenna system to solve the technical problem of large size in the prior art.

[0005] The second purpose of the utility model is to provide an electronic equipment which can have the functions of two kinds of antennas at the same time, and the space reserved for the antenna system can be smaller, which is beneficial to miniaturization.

[0006] According to the above idea, the technical scheme adopted by the utility model is as follows:

[0007] The antenna system comprises:

[0008] The support body comprises a first mounting area and a second mounting area, the first mounting area has a notch, and the second mounting area is located in the notch;

[0009] The first antenna comprises a first antenna body, and the first antenna body is arranged in the first mounting area;

[0010] The second antenna comprises a second antenna body, the second antenna body is arranged 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 of the first antenna and the second antenna;

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

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

[0013] The first antenna further comprises 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 further comprises 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 comprises a central part, a first antenna part, a second antenna part, a third antenna part and a fourth antenna part connected to the central part in sequence in a circumferential direction, the first antenna part and the third antenna part are arranged opposite to each other in a first direction, the second antenna part and the fourth antenna part 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 part and the second antenna part.

[0016] The area of the first antenna part and the area of the second antenna part are both smaller than the area of the third antenna part, and the area of the first antenna part and the area of the second antenna part are both smaller than the area of the fourth antenna part.

[0017] The first direction intersects 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 electric feed line is located in the second groove, the other end of the second electric feed line extends to the second mounting area and is electrically connected to the second antenna body.

[0019] Optionally, the support body has a square structure.

[0020] The first antenna body is projected on the support body, and the end face of the first antenna body away from the center part is flush with the side face of the support body.

[0021] In addition, the width of the first antenna part, the second antenna part, the third antenna part and the fourth antenna part gradually increases and then gradually decreases in the direction away from the center part.

[0022] The second antenna body is projected on the support body, and the end face of the second antenna body away from the first antenna body is flush with the side face of the support body.

[0023] Optionally, the second antenna body comprises a fifth antenna part, a sixth antenna part and a seventh antenna part, the sixth antenna part and the seventh antenna part are arranged at the same side of the fifth antenna part and connected to the fifth antenna part, and the sixth antenna part is closer to the first antenna body than the seventh antenna part in the arrangement direction of the sixth antenna part and the seventh antenna part; the second ground feed line and the second electric feed line are electrically connected to the end of the seventh antenna part away from the fifth antenna part.

[0024] Optionally, the second antenna further comprises a third antenna body, the third antenna body is arranged on the second mounting surface and electrically connected to the end of the sixth antenna part away from the fifth antenna part.

[0025] Optionally, the first ground feed line has a first groove, and one end of the first electric feed line is arranged 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 electric feed line is arranged in the second groove, and the other end of the second electric feed line extends to the second mounting area and is electrically connected to the second antenna body.

[0027] Optionally, the antenna system further comprises a first radio frequency cable, a second radio frequency cable and a grounding plate, the grounding plate is arranged 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 and electrically connected to the grounding plate; 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 and electrically connected to the grounding 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, including the antenna system as described above.

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

[0031] The antenna system includes the first antenna and the second antenna which are different in type, and the first antenna and the second antenna are arranged on the support body, so that the antenna system has the functions of the first antenna and the second antenna, the first antenna and the second antenna are arranged on the same support body, the space required by the antenna system can be reduced, the volume and the area of the antenna system can be small, the antenna system is small in volume on the basis of rich functions, and can be applied to the electronic device which has high requirements on size, the electronic device does not need to reserve a large mounting space, and the miniaturization of the electronic device is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and the drawings by those skilled in the art without creative labor.

[0033] Figure 1 is a structural schematic view of the antenna system provided by the embodiments of the utility model;

[0034] Figure 2 is a top view of the antenna system provided by the embodiments of the utility model;

[0035] Figure 3 is a bottom view of the antenna system provided by the embodiments of the utility model;

[0036] Figure 4 is an exploded view of the antenna system provided by the embodiments of the utility model;

[0037] Figure 5 is a structural schematic view of part of the antenna system provided by the embodiments of the utility model;

[0038] Figure 6 is a structural schematic view of the first antenna provided by the embodiments of the utility model;

[0039] Figure 7 is a structural schematic view of the second antenna provided by the embodiments of the utility model;

[0040] Figure 8is a curve graph of S11 parameters of the first antenna provided by the embodiment of the utility model;

[0041] Figure 9 is a curve graph of antenna efficiency of the first antenna provided by the embodiment of the utility model;

[0042] Figure 10 is a surface current distribution graph of the first antenna provided by the embodiment of the utility model;

[0043] Figure 11 is a 3D radiation pattern of the first antenna provided by the embodiment of the utility model;

[0044] Figure 12 is a first 2D radiation pattern of the first antenna provided by the embodiment of the utility model;

[0045] Figure 13 is a second 2D radiation pattern of the first antenna provided by the embodiment of the utility model;

[0046] Figure 14 is a curve graph of S11 parameters of the second antenna provided by the embodiment of the utility model;

[0047] Figure 15 is a curve graph of antenna efficiency of the second antenna provided by the embodiment of the utility model;

[0048] Figure 16 is a surface current distribution graph of the second antenna provided by the embodiment of the utility model;

[0049] Figure 17 is a 3D radiation pattern of the second antenna provided by the embodiment of the utility model;

[0050] Figure 18 is a first 2D radiation pattern of the second antenna provided by the embodiment of the utility model;

[0051] Figure 19 is a second 2D radiation pattern of the second antenna provided by the embodiment of the utility model;

[0052] Figure 20 is a S21 parameter curve graph between the first antenna and the second antenna provided by the embodiment of the utility model.

[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 part; 212, first antenna part; 213, second antenna part; 214, third antenna part; 215, fourth antenna part; 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 part; 312, sixth antenna part; 313, seventh antenna part; 314, third groove; 320, second ground feed line; 321, second groove; 322, ground feed piece; 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;

[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 utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model will be further explained below in combination with the drawings and through specific embodiments. It can be understood that the specific embodiments described here are only used to explain the utility model, not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all.

[0061] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0062] In the description of the utility model, unless otherwise explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0063] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature, can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "upper surface of" second feature includes that first feature is directly above and obliquely above second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature "under", "below" and "under surface of" second feature includes that first feature is directly below and obliquely below second feature, or only indicates that horizontal height of first feature is less than second feature. In the description of the embodiment, if not special explanation, "multiple" specifically means two or more than two.

[0064] In the description of the embodiment, the orientation or position relation of the terms "on", "under", "right", etc. is based on the orientation or position relation shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation to the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0065] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element.

[0066] The technical scheme of the utility model will be further illustrated below by combining the drawings and through specific embodiments.

[0067] In the first aspect, the embodiment provides an antenna system, which can integrate two kinds of antennas together, so that on the basis of having two kinds of antenna functions, the size of the antenna system can be smaller, reduces the space occupied by the antenna, so that the antenna can be applied in the electronic equipment with smaller reserved installation space.

[0068] Exemplarily, as shown in the figure, Figures 1 to 7 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 arranged on the support body 100.

[0069] As shown in the figure, Figure 2As shown, 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 in the notch 111 to make full use of the support body 100. The first antenna 200 includes a first antenna body 210, which is arranged on the first mounting area 110. The second antenna 300 includes a second antenna body 310, which is arranged on the second mounting 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 of 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, so as to achieve better performance.

[0070] It should be noted that the first antenna 200 and the second antenna 300 in the embodiment are different types of antennas, and can also be considered as having different functions and different working frequencies. The embodiment is not limited in this regard. For example, the first antenna 200 in the embodiment is an ultra-wideband (UWB) antenna, and the second antenna 300 is a BLE antenna.

[0071] The antenna system provided in the embodiment has the functions of the first antenna 200 and the second antenna 300, and the first antenna 200 and the second antenna 300 are arranged on the same support body 100, which can reduce the space occupied by the antenna system, so that the volume and area of the antenna system can be small. The antenna system has rich functions and small volume, and can be applied to electronic devices with high size requirements. The electronic device does not need to reserve a large mounting space, which is beneficial to the miniaturization of the electronic device.

[0072] In some optional embodiments, the support body 100 is a plate structure, and the thickness can 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 can be an FR4 epoxy glass fiber medium substrate, for example, the support body 100 can 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 can be rectangular, square, circular, trapezoidal, etc., and the embodiment is not limited in this regard. In the embodiment, the support body 100 is rectangular, and the first mounting area 110 and the second mounting area 120 are arranged on the same side of the support body 100. Figure 1As shown, the support body 100 is square, making the support body 100 relatively regular and convenient for placement of the antenna system in the electronic device. In this embodiment, the side length of the support body 100 is 10 mm to 18 mm. For example, the side length of the support body 100 is 10 mm, 12 mm, 15 mm, 16 mm, or 18 mm.

[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 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 power feed line 230. The first ground feed line 220 and the first power feed line 230 are both provided on the second mounting surface 102 to fully utilize 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 power feed line 230 is insulated from the first ground feed line 220. The first power feed line 230 is coupled to the first antenna body 210 so that the first power 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 via 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 power feed line 330. The second ground feed line 320 and the second power feed line 330 are both provided on the second mounting surface 102 to fully utilize the layout space on the support body 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 adjusting the impedance of the antenna system. Furthermore, the first antenna 200 and the second antenna 300 can be integrated together through the second ground feed line 320, thereby enabling the first antenna 200 and the second antenna 300 to share a common ground feed. The second power feed line 330 is electrically connected to the second antenna body 310 to extend the second power feed line 330 to the second antenna body 310.

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

[0077] The first antenna body 210 in the embodiment is of an integrated structure, and can also be of a split structure. Exemplarily, as shown in Figure 5 or Figure 6 illustrated, the first antenna body 210 includes a center 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 center portion 211 in sequence in the circumferential direction. The first antenna portion 212 and the third antenna portion 214 are oppositely arranged in a first direction X, and the second antenna portion 213 and the fourth antenna portion 215 are oppositely arranged in a second direction Y. The second antenna body 310 is located in a space formed by the first antenna portion 212 and the second antenna portion 213. The first direction X and the second direction Y are perpendicular to the thickness direction of the support body 100.

[0078] In some optional embodiments, as shown in Figure 5 and Figure 6 illustrated, 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 can be half or close to half of the area of the third antenna portion 214, and the area of the second antenna portion 213 can be half or close to half of the area of the third antenna portion 214, so as to better match the shape of the second antenna 300 while ensuring that the first antenna 200 has a larger area. 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 the embodiment.

[0079] Please refer to Figure 5The first ground feed line 220 is electrically connected with the fourth antenna part 215, and the first ground feed line 220 has a first recess 221, and one end of the first electric feed line 230 is located in the first recess 221 and has a gap with the first ground feed line 220. The other end of the first electric feed line 230 is arranged opposite to the first antenna part 212 in the thickness direction of the support body 100. By arranging one end of the first electric feed line 230 in the first recess 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 part 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 arrangement position and length of the first electric feed 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 electric feed line 230 with the above structure enable the first antenna 200 to have a larger bandwidth and better resonance performance.

[0081] The first electric feed line 230 in the embodiment can be of an integrated structure, and can also be of a split structure. In some optional embodiments, as shown in FIG. 2B, the first electric feed line 230 includes a first electric feed segment 231 extending along the first direction X and a second electric feed segment 232 arranged at an angle with the first electric feed segment 231 and extending away from the fourth antenna part 215 towards the first antenna part 212. Figure 5

[0082] The first ground feed line 220 in the embodiment can be in a sheet shape, and it can be understood that the first ground feed line 220 can also be in other shapes, which are not limited in the embodiment.

[0083] In some optional embodiments, the orthographic projection of the first antenna body 210 on the support body 100 is located in the support body 100, so that the first antenna body 210 is not arranged protruding from the support body 100, to ensure that the support body 100 supports the first antenna body 210, and also does not make the size of the antenna system too large. It can be understood that the orthographic projection of the first electric feed line 230 on the support body 100 and the orthographic projection of the first ground feed line 220 on the support body 100 are also located in the support body 100, to enable the support body 100 to better support the first ground feed line 220 and the first electric feed line 230.

[0084] ​Furthermore, the end face of the first antenna portion 212 away from the center portion 211, the end face of the second antenna portion 213 away from the center portion 211, the end face of the third antenna portion 214 away from the center portion 211, and the end face of the fourth antenna portion 215 away from the center portion 211 are 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 the radiation performance of the first antenna 200. In the embodiment, when the support body 100 is square, the end face of the first antenna portion 212 away from the center portion 211, the end face of the second antenna portion 213 away from the center portion 211, the end face of the third antenna portion 214 away from the center portion 211, and the end face of the fourth antenna portion 215 away from the center portion 211 correspond to the four side surfaces of the support body 100.

[0085] In the embodiment, the shape of the first antenna body 210 can be various, and in an example, the first antenna body 210 in the embodiment is in a flower shape.

[0086] Furthermore, the width of the first antenna portion 212, the second antenna portion 213, the third antenna portion 214, and the fourth antenna portion 215 gradually increases in the direction away from the center portion 211, so that the area of the first antenna portion 212, the second antenna portion 213, the third antenna portion 214, and the fourth antenna portion 215 is larger. In the 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 generally one-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 in the support body 100, and the end face of the second antenna body 310 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 in a limited space, thereby improving the impedance adjustment capability.

[0088] The second antenna body 310 in the embodiment can be in an integrated structure, and can also be in a split structure. For example, 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. Among them, 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, 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 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 body 200 than the seventh antenna portion 313. Exemplarily, as shown in the figure, 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 one 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. Figure 5

[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 electric feed line 330 is located in the second groove 321, and there is a gap between the second ground feed line 320 and the second electric feed line 330. The other end of the second electric feed line 330 extends to the second mounting area 120 and is electrically connected to the second antenna body 310.

[0090] The second ground feed line 320 in the embodiment can be of an integral structure, and can also be of a split structure. In some optional embodiments, the second ground feed line 320 includes a ground feed piece 322, a first ground feed segment 323 and a second ground feed segment 324 connected in sequence. Among them, the second groove 321 is arranged on the ground feed piece 322, the first ground feed segment 323 is connected to the slotted end of the ground feed piece 322, and the first ground feed segment 323 extends along the first direction X, and the second ground feed segment 324 is arranged at an angle with the first ground feed segment 323. In the embodiment, the second ground feed segment 324 is electrically connected to the seventh antenna portion 313.

[0091] The second electric feed line 330 in the embodiment can be of an integral structure, and can also be of a split structure. Optionally, the second electric feed line 330 includes a third electric feed segment 331 and a fourth electric feed segment 332 connected in sequence, one end of the third electric feed segment 331 is located in the second groove 321, and the third electric feed segment 331 extends along the first direction X, the fourth electric feed segment 332 is arranged at an angle with the third electric feed segment 331, and the fourth electric feed segment 332 is parallel to the second ground feed segment 324. In the embodiment, the fourth electric feed segment 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 the end of the sixth antenna portion 312 facing away from the fifth antenna portion 311. The provision of the third antenna body 340 allows for adjustment of the length of the second antenna body 310, allowing for a longer length, enabling the antenna system to resonate at 2.4 GHz and improving the resonance effect of the antenna system. Exemplarily, one end surface of the third antenna body 340 is flush with a side surface of the support body 100. The third antenna body 340 can be electrically connected to the second antenna body 310 via at least one metal post 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 facing away from the center portion 211 in the second direction Y is L2. The side of the first antenna portion 212 facing 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 portion 212 facing away from the center portion 211 and has a length of L3 in the first direction X. The second segment has a length of L4, and the third segment has a length of L5.

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

[0096] The side of the third antenna portion 214 facing the fourth antenna portion 215 includes a seventh, eighth, and ninth segment connected in sequence. 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 has an axisymmetric structure, with the axis of symmetry extending along the first direction X.

[0097] The second antenna part 213 includes a tenth segment, an eleventh segment and a twelfth segment connected in sequence towards the side of the third antenna part 214. The tenth segment is closer to the center part 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 part 213 away from the center part 211 is L10, and the length of the side of the second antenna part 213 towards the second antenna body 310 in the second direction Y is L11.

[0098] Exemplarily, L1 is in the range of 7mm-8mm. For example, L1=7mm, 7.5mm, 8mm. L2 is in the range of 3.2mm-3.7mm. For example, L2=3.5mm, 3.51mm, 3.7mm. L3 is in the range of 2mm-2.5mm. For example, L3=2mm, 2.35mm, 2.5mm. L4 is in the range of 3.5mm-4mm. For example, L4=3.5mm, 3.75mm, 4mm. L5 is in the range of 1.2mm-1.7mm. For example, L5=1.2mm, 1.5mm, 1.7mm. L6 is in the range of 1.5mm-2mm. For example, L6=1.5mm, 1.85mm, 2mm. L7 is in the range of 5.2mm-5.7mm. For example, L7=6.2mm, 6.58mm, 6.7mm. L8 is in the range of 6.7mm-6.9mm. For example, L8=6.7mm, 6.83mm, 6.9mm. L9 is in the range of 6.8mm-7.2mm. For example, L9=6.8mm, 7.01mm, 7.2mm. L10 is in the range of 3mm-3.5mm. For example, L10=3mm, 3.26mm, 3.5mm. L11 is in the range of 7.5mm-7.8mm. For example, L11=7.5mm, 7.75mm, 7.8mm.

[0099] In some optional embodiments, the specific size of the second antenna body 310 is provided based on the support body 100 with a side length of 15mm and a thickness of 1mm.

[0100] As 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 part 311 in the first direction X is L12. The length of the end of the sixth antenna part 312 away from the fifth antenna part 311 in the first direction X is L14. The side of the sixth antenna part 312 towards the seventh antenna part 313 includes a thirteenth segment and a fourteenth segment, the thirteenth segment extends along the second direction Y and has a length of L15, and the fourteenth segment is at an angle greater than 90 degrees and less than 180 degrees with the thirteenth segment, and the length of the fourteenth segment is L16. The interval between the sixth antenna part 312 and the seventh antenna part 313 is L17. The seventh antenna part 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.

[0101] For example, L12 = 6.5 mm, 6.75 mm, 7 mm. The value range of L13 is 6.8 mm-7.2 mm. For example, L13 = 6.8 mm, 7 mm, 7.2 mm. The value range of L14 is 3.4 mm-3.8 mm. For example, L14 = 3.4 mm, 3.65 mm, 3.8 mm. The value range of L15 is 1 mm-1.5 mm. For example, L15 = 1 mm, 1.18 mm, 1.5 mm. The value range of L16 is 5 mm-5.5 mm. For example, L16 = 5 mm, 5.17 mm, 5.5 mm. The value range of L17 is 0.1 mm-0.5 mm. For example, L12 = 0.1 mm, 0.3 mm, 0.5 mm. The value range of L18 is 3.5 mm-4 mm. 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] Optionally, as Figure 3 and Figure 4As shown, the antenna system further comprises a first radio frequency cable 500, a second radio frequency cable 600 and a grounding plate 700. The grounding plate 700 is arranged on the second mounting surface 102 and electrically connected with the first antenna body 210. Exemplarily, the grounding plate 700 is electrically connected with the first antenna body 210 through at least one metal column 800. The inner conductor of the first radio frequency cable 500 is electrically connected with the first ground feed line 220, and the outer conductor of the first radio frequency cable 500 is fixedly connected and electrically connected with the grounding plate 700. In the embodiment, the inner conductor of the first radio frequency cable 500 is referred to as a first inner conductor 510, and the outer conductor of the first radio frequency cable 500 is referred to as a first outer conductor 520. The first inner conductor 510 is connected with the first ground feed line 220 at the end of 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 can be welded to the grounding plate 700.

[0103] The inner conductor of the second radio frequency cable 600 is electrically connected with the second ground feed line 320, and the outer conductor of the second radio frequency cable 600 is fixedly connected and electrically connected with the grounding plate 700. In the embodiment, the inner conductor of the second radio frequency cable 600 is referred to as a second inner conductor 610, and the outer conductor of the second radio frequency cable 600 is referred to as a second outer conductor 620. The second inner conductor 610 is connected with the second ground feed line 320 at the end of 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 can be welded to the grounding plate 700.

[0104] In the embodiment, the grounding plate 700 is arranged on the second mounting surface 102, and the first radio frequency cable 500 and the second radio frequency cable 600 are welded through the grounding plate 700, so that the fixation of the first radio frequency cable 500 and the second radio frequency cable 600 is realized, and the problem of poor consistency caused by poor welding of the radio frequency cable is improved, and the consistency of the first radio frequency cable 500 and the second radio frequency cable 600 is improved.

[0105] Exemplarily, an insulator is arranged 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 realize insulation. A sheath is arranged 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 material of the first inner conductor 510 and the second inner conductor 610 can be silver-plated copper wire with a diameter of 7*0.08 mm, the material of the insulator can be polytetrafluoroethylene with a diameter of 0.68 mm, and the material of the outer conductor can be silver-plated copper wire braid, and the material of the sheath can be polytetrafluoroethylene with a diameter of 1.13 mm.

[0106] The performance of the antenna system provided in the embodiment is tested, 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, i.e. how much energy is reflected back to the source, and the smaller the value of the S11 parameter is, the better. Figure 8 The abscissa represents the frequency in GHz, and the ordinate represents the S11 parameter in dB. In this embodiment, the first antenna 200 is usually channel-9, i.e. 7737MHz-8237MHz, and the first antenna 200 meets the design requirement of S11<-10dB in this frequency band.

[0108] Figure 9 The antenna efficiency of the first antenna 200. The antenna efficiency represents the energy conversion efficiency of the antenna, i.e. the ratio of the radiation power Pr of the antenna to the input power Pin, which is called the antenna efficiency. The larger the value of the antenna efficiency is, the better, and the unit is dB. From Figure 9 It can be seen from the figure that the efficiency of the first antenna 200 is high.

[0109] Figure 10 The surface current distribution of the first antenna 200. In this embodiment, Figure 10 The redder the color is, the greater the current is, and the bluer the color is, the smaller the current is, and from Figure 10 It can be seen that the current is mainly concentrated at the edge of the first antenna part 212 of the first antenna 200 facing the second antenna part 213, the edge of the second antenna part 213 facing the first antenna part 212, the first electric feed line 230 and the first ground feed line 220.

[0110] Figure 11 The 3D radiation pattern of the first antenna 200. In this embodiment, Figure 11 The redder the color is, the stronger the radiation is, and the bluer the color is, the weaker the radiation is, and from Figure 11 It can be seen that when the antenna system is vertically placed, the antenna radiates in the horizontal direction.

[0111] Figure 12 The 2D radiation pattern of the first antenna 200. In this embodiment, Figure 12 The 2D graph in this embodiment is a horizontal section when the antenna system is vertically placed, the outer coordinate is the directional coordinate-180°-+180°, and the inside is a closed curve of radiation, the larger the value is, the stronger the radiation is, and the smaller the value is, the weaker the radiation is, and the unit is dBi. From Figure 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] Figure 13 The 2D radiation pattern of the first antenna 200, Figure 13The 2D graph in FIG. 6 is a horizontal section of the antenna system laid horizontally, the outer coordinate is the directional coordinate 0°-360°, and the inner is a closed curve of radiation, the greater the value, the stronger the radiation, and the smaller the value, the weaker the radiation, with the unit of dBi. It can be seen from the graph 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.

[0113] Figure 14 S11 is the S11 parameter of the second antenna 300, and the S11 parameter represents the return loss of the antenna, that is, how much energy is reflected back to the source end, and the smaller the value of the S11 parameter, the better. Figure 14 In FIG. 7, the horizontal coordinate is the frequency, with the unit of GHz; and the vertical coordinate represents the S11 parameter, with the unit of dB.

[0114] Figure 15 The antenna efficiency of the second antenna 300 is shown in FIG. 8. Figure 15 It can be seen from FIG. 8 that the antenna efficiency of the second antenna 300 is also high.

[0115] Figure 16 The surface current distribution of the second antenna 300 is shown in FIG. 9. Figure 16 In FIG. 9, the redder the color, the greater the current, and the bluer the color, the smaller the current, and it can be seen from FIG. 9 that the current is mainly concentrated at the edge of the sixth antenna part 312 towards the seventh antenna part 313, the edge of the seventh antenna part 313 towards the sixth antenna part 312, the edge of the central part 211 towards the second antenna body 310, the first electric feed line 230, and the first ground feed line 220. Figure 16

[0116] The 3D radiation pattern of the second antenna 300 is shown in FIG. 10. Figure 17 In FIG. 10, the redder the color, the stronger the radiation, and the bluer the color, the weaker the radiation, and it can be seen from FIG. 10 that when the antenna system is laid vertically, the antenna radiates in the horizontal direction. Figure 17 Figure 17 The 2D radiation pattern of the second antenna 300 is shown in FIG. 11.

[0117] In FIG. 11, the 2D graph is a horizontal section of the antenna system laid vertically, the outer coordinate is the directional coordinate -180°-+180°, and the inner is a closed curve of radiation, the greater the value, the stronger the radiation, and the smaller the value, the weaker the radiation, with the unit of dBi. It can be seen from FIG. 11 that the strongest radiation point appears near 174°, with an intensity of 1.189 dBi, and the weakest radiation point appears near 85°, with an intensity of 0.4566 dBi. Figure 18 Figure 18 Figure 18 The surface current distribution of the second antenna 300 is shown in FIG. 12. In FIG. 12, the redder the color, the greater the current, and the bluer the color, the smaller the current, and it can be seen from FIG. 12 that the current is mainly concentrated at the edge of the sixth antenna part 312 towards the seventh antenna part 313, the edge of the seventh antenna part 313 towards the sixth antenna part 312, the edge of the central part 211 towards the second antenna body 310, the first electric feed line 230, and the first ground feed line 220.

[0118] Figure 19 ​The 2D radiation pattern of the second antenna 300 is a horizontal section of the antenna system horizontally placed, the peripheral coordinate is a direction coordinate 0°-360°, and the inside is a closed curve of radiation, wherein the greater the value is, the stronger the radiation is, the smaller the value is, the weaker the radiation is, and the unit is dBi. Figure 13 As can be seen from the diagram, the strongest radiation point appears near 68°, and the intensity is 1.275 dBi; the weakest radiation point appears near 327°, and the intensity is -2.5 dBi.

[0119] Figure 20 The S21 parameter is between the first antenna 200 and the second antenna 300, and the S21 parameter represents the isolation degree between the two antennas, wherein the smaller the value is, the smaller the mutual influence between the two antennas is, and the unit is dB. Figure 20 As can be seen from the diagram, the S21 isolation degree between the two antennas is less than -20 dB in the frequency band 2402 MHz-2483 MHz of the second antenna 300 and the commonly used frequency band 7737 MHz-8237 MHz of the first antenna 200, which indicates that the mutual influence between the two antennas is small, and the isolation degree between the two antennas meets the design requirement.

[0120] In the second aspect, the embodiment further provides an electronic device comprising the antenna system in the first aspect.

[0121] Exemplarily, the electronic device can be a sound, a sound wall, a television, a locator, or the like.

[0122] It should be noted that the above is only a preferred embodiment of the present application and the technical principle applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the above embodiments of the present application have been described in detail, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. An antenna system, characterized by The application relates to an antenna support body. The antenna support body comprises a support body (100) and a first antenna (200) and a second antenna (300). The support body (100) comprises 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 in the notch (111). The first antenna (200) comprises a first antenna body (210), and the first antenna body (210) is arranged on the first mounting area (110). The second antenna (300) comprises a second antenna body (310), the second antenna body (310) is arranged on the second mounting area (120), and a gap is formed between the second antenna body (310) and the first antenna body (210) to form a clearance area (400) of the first antenna (200) and the second antenna (300).

2. The antenna system of claim 1, wherein, The first antenna (200) and the second antenna (300) are different types of antennas. The support body (100) has a first mounting surface (101) and a second mounting surface (102) arranged opposite to the first mounting surface (101), and the first antenna body (210) and the second antenna body (310) are 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), the first ground feed line (220) and the first electric feed line (230) are arranged on the second mounting surface (102), the first ground feed line (220) is electrically connected with the first antenna body (210), the first electric feed line (230) is coupled with the first antenna body (210), and the first electric feed line (230) is insulated from the first ground feed line (220).

3. The antenna system of claim 2, wherein, The second antenna (300) further comprises 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 arranged on the second mounting surface (102), the second ground feed line (320) is electrically connected with the first antenna body (210) and the second antenna body (310), and the second electric feed line (330) is electrically connected with the second antenna body (310). The first antenna body (210) comprises a center part (211), a first antenna part (212), a second antenna part (213), a third antenna part (214) and a fourth antenna part (215) which are sequentially connected to the center part (211) in a circumferential direction, the first antenna part (212) and the third antenna part (214) are arranged opposite to each other in a first direction (X), the second antenna part (213) and the fourth antenna part (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 part (212) and the second antenna part (213). The first antenna (200) and the second antenna (300) are different types of antennas. The support body (100) has a first mounting surface (101) and a second mounting surface (102) arranged opposite to the first mounting surface (101), and the first antenna body (210) and the second antenna body (310) are 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), the first ground feed line (220) and the first electric feed line (230) are arranged on the second mounting surface (102), the first ground feed line (220) is electrically connected with the first antenna body (210), the first electric feed line (230) is coupled with 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), second ground feed line (320) and second electric feed line (330) are arranged on the second mounting surface (102), the second ground feed line (320) is electrically connected with the first antenna body (210) and the second antenna body (310), the second electric feed line (330) is electrically connected with the second antenna body (310). The first antenna body (210) comprises a center part (211), a first antenna part (212), a second antenna part (213), a third antenna part (214) and a fourth antenna part (215) which are sequentially connected to the center part (211) in a circumferential direction, the first antenna part (212) and the third antenna part (214) are arranged opposite to each other in a first direction (X), the second antenna part (213) and the fourth antenna part (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 part (212) and the second antenna part (213). The area of the first antenna part (212) and the area of the second antenna part (213) are both smaller than the area of the third antenna part (214), and the area of the first antenna part (212) and the area of the second antenna part (213) are both smaller than the area of the fourth antenna part (215); The first direction (X) and the second direction (Y) intersect.

4. The antenna system of claim 3, wherein, The support body (100) is a square structure; The first antenna body (210) is projected on the support body (100) in a perpendicular direction, and the end face of the first antenna part (212) away from the center part (211), the end face of the second antenna part (213) away from the center part (211), the end face of the third antenna part (214) away from the center part (211), and the end face of the fourth antenna part (215) away from the center part (211) are flush with the side surface of the support body (100); And / or, along the direction away from the center part (211), the width of the first antenna part (212), the second antenna part (213), the third antenna part (214) and the fourth antenna part (215) gradually increases and then gradually decreases; And / or, the second antenna body (310) is projected on the support body (100) in a perpendicular direction, and the end face of the second antenna body (310) away from the first antenna body (210) is flush with the side surface of the support body (100).

5. The antenna system of claim 2, wherein, The second antenna body (310) comprises a fifth antenna part (311), a sixth antenna part (312) and a seventh antenna part (313), the sixth antenna part (312) and the seventh antenna part (313) are arranged at the same side of the fifth antenna part (311) and are connected to the fifth antenna part (311), in the arrangement direction of the sixth antenna part (312) and the seventh antenna part (313), the sixth antenna part (312) is closer to the first antenna (200) than the seventh antenna part (313); the second ground feed line (320) and the second electric feed line (330) are both electrically connected to the end of the seventh antenna part (313) away from the fifth antenna part (311).

6. The antenna system of claim 5, wherein, The second antenna (300) further comprises a third antenna body (340), the third antenna body (340) is arranged on the second mounting surface (102) and is electrically connected to the end of the sixth antenna part (312) away from the fifth antenna part (311).

7. An antenna system according to any one of claims 2 to 6, characterised in that, The first ground feed line (220) has a first groove (221), and one end of the first electric feed line (230) is located in the first groove (221); The second ground feed line (320) is electrically connected with the second antenna part (213) of the first antenna body (210), and the second ground feed line (320) has a second groove (321), one end of the second electric feed line (330) is located in the second groove (321), the other end of the second electric feed line (330) extends to the second mounting area (120) and is electrically connected with the second antenna body (310).

8. An antenna system according to any one of claims 2 to 6, characterised in that, The antenna system further comprises a first radio frequency cable (500), a second radio frequency cable (600) and a grounding plate (700), the grounding plate (700) is arranged on the second mounting surface (102) and is electrically connected with the first antenna body (210); an inner conductor of the first radio frequency cable (500) is electrically connected with the first ground feed line (220) of the first antenna (200), an outer conductor of the first radio frequency cable (500) is fixedly and electrically connected with the grounding plate (700); an inner conductor of the second radio frequency cable (600) is electrically connected with the second ground feed line (320) of the second antenna (300), an outer conductor of the second radio frequency cable (600) is fixedly and electrically connected with the grounding plate (700).

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

10. An electronic device, characterized by An antenna system comprising any one of claims 1 to 9.

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