Antenna and electronic equipment

Abstract

The invention provides an antenna and electronic equipment, and relates to the technical field of communication. The antenna comprises a metal floor, a first metal frame, a second metal frame and a port, the first metal frame is arranged on the side edge of the metal floor, the two ends of the first metal frame are electrically connected with the metal floor, and a first gap is defined between the first metal frame and the metal floor; the second metal frame is arranged in a first gap formed by the first metal frame and the metal floor, the two ends of the second metal frame are electrically connected with the metal floor, a second gap is defined between the second metal frame and the metal floor, and the second gap is nested in the first gap; the ports comprise a first port and a second port, the first port is used for feeding the first metal frame, and the second port is used for feeding the second metal frame. The invention provides an antenna and an electronic device. The overall communication performance of the antenna can be improved.

Description

Technical Field

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

[0002] In current smart terminal devices, seamless all-metal frame antennas are widely used; however, this type of antenna has a relatively narrow bandwidth. Therefore, to reduce this impact, the size of a single antenna needs to be appropriately increased. However, the number of antennas that can be placed in a product is limited, and such a design would lead to a reduction in the number of antennas or a decrease in the isolation effect between antennas, thereby affecting the overall communication performance.

[0003] Therefore, how to improve the overall communication performance of an antenna by implementing multiple antennas with high isolation within a seamless metal frame is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] To address at least one of the problems mentioned in the background art, the present invention provides an antenna and electronic device that can improve the overall communication performance of the antenna.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] In a first aspect, the present invention provides an antenna, including a metal ground, a first metal frame, a second metal frame, and a port. The first metal frame is disposed on the side of the metal ground, and both ends of the first metal frame are electrically connected to the metal ground. A first gap is formed between the first metal frame and the metal ground. The second metal frame is disposed in the first gap formed by the first metal frame and the metal ground. Both ends of the second metal frame are electrically connected to the metal ground. A second gap is formed between the second metal frame and the metal ground. The second gap is nested in the first gap.

[0007] The port includes a first port and a second port. The first port is used to power the first metal frame, and the second port is used to power the second metal frame.

[0008] As an optional implementation, the port also includes a third port, which includes an inductive element or a capacitive element, and is electrically connected between the first metal frame and the metal ground plane, or the third port is electrically connected between the second metal frame and the metal ground plane.

[0009] As an alternative implementation, the edges of the first metal frame and the metal floor are flush.

[0010] As an alternative implementation, a second metal frame is disposed in the middle of the first gap.

[0011] As an optional implementation, a third metal frame is also included, which is disposed in the second gap.

[0012] As an alternative implementation, there are at least two first metal frames, which are disposed on the same side of the metal floor, or at least two first metal frames are disposed on different sides of the metal floor.

[0013] As an alternative implementation, the first metal frame is L-shaped, and an L-shaped first gap is formed between two adjacent sides of the first metal frame and the metal floor.

[0014] As an alternative implementation, the first port and the first metal frame are electrically connected for direct power supply.

[0015] As an alternative implementation, the first port includes a coupling element, with a gap between the coupling element and the first metal frame for coupling power supply.

[0016] In a second aspect, the present invention also provides an electronic device including the antenna described in the first aspect.

[0017] The antenna provided by the present invention includes a metal ground plane, a first metal frame, a second metal frame, and ports. The first metal frame is disposed on the side of the metal ground plane, and its two ends are electrically connected to the metal ground plane. A first gap is formed between the first metal frame and the metal ground plane. The second metal frame is disposed in the first gap formed by the first metal frame and the metal ground plane. Its two ends are electrically connected to the metal ground plane. A second gap is formed between the second metal frame and the metal ground plane, and the second gap is nested in the first gap. The ports include a first port and a second port. The first port is used to feed power to the first metal frame, and the second port is used to feed power to the second metal frame.

[0018] The antenna provided by the present invention forms a first slot antenna between the first metal frame and the metal ground plane by nesting a second metal frame within a first metal frame. Both the first and second metal frames are connected to a metal ground plane. This makes reasonable use of limited space, eliminates the need to increase the volume of individual antennas, ensures the number of antennas, and simultaneously ensures that the first and second slot antennas have good isolation and radiation effects, thereby improving the overall communication performance of the antenna. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a first structure of an antenna provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of a second antenna structure provided in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of a third antenna structure provided in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the fourth structure of the antenna provided in an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the fifth structure of the antenna provided in an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the sixth structure of the antenna provided in an embodiment of the present invention;

[0026] Figure 7 A schematic diagram of the seventh antenna structure provided in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the eighth structure of the antenna provided in an embodiment of the present invention;

[0028] Figure 9 A schematic diagram of the ninth structure of the antenna provided in an embodiment of the present invention;

[0029] Figure 10 A schematic diagram showing the distribution of antenna current at a frequency of 0.732 GHz when the first port of the antenna is excited, as provided in an embodiment of the present invention;

[0030] Figure 11 A schematic diagram showing the distribution of the antenna electric field at a frequency of 0.732 GHz when the first port of the antenna is excited, as provided in an embodiment of the present invention;

[0031] Figure 12 A schematic diagram showing the distribution of antenna current at a frequency of 1.62 GHz when the first port of the antenna is excited according to an embodiment of the present invention;

[0032] Figure 13A schematic diagram showing the distribution of the antenna electric field at a frequency of 1.62 GHz when the first port of the antenna is excited, as provided in an embodiment of the present invention;

[0033] Figure 14 A schematic diagram showing the distribution of antenna current at a frequency of 2.58 GHz when the first port of the antenna is excited according to an embodiment of the present invention;

[0034] Figure 15 A schematic diagram showing the distribution of the antenna electric field at a frequency of 2.58 GHz when the first port of the antenna is excited, as provided in an embodiment of the present invention;

[0035] Figure 16 A schematic diagram showing the distribution of antenna current at a frequency of 1.65 GHz when the second port of the antenna is excited according to an embodiment of the present invention;

[0036] Figure 17 A schematic diagram showing the distribution of the antenna electric field at a frequency of 1.65 GHz when the second port of the antenna is excited according to an embodiment of the present invention;

[0037] Figure 18 A schematic diagram illustrating the simulated return loss and isolation of the antenna provided in an embodiment of the present invention;

[0038] Figure 19 This is a schematic diagram illustrating the simulation efficiency of the antenna provided in an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100-antenna;

[0041] 110 - Metal floor;

[0042] 120 - First metal frame;

[0043] 130 - Second metal frame;

[0044] 140 - Third metal frame;

[0045] 150 - First Port;

[0046] 160 - Second Port;

[0047] 170 - Third Port;

[0048] 171 - Coupling element;

[0049] 180 - Fourth Port;

[0050] 190 - First gap;

[0051] 200 - Second gap;

[0052] 210 - Third gap. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] In this application, the terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “lateral,” and “longitudinal” indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or to be constructed and operated in a specific orientation.

[0055] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0056] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0057] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0058] In current smart terminal devices, seamless all-metal frame antennas are widely used; however, this type of antenna has a relatively narrow bandwidth. Therefore, to reduce this impact, the size of a single antenna needs to be appropriately increased. However, the number of antennas that can be placed in a product is limited, and such a design would lead to a reduction in the number of antennas or a decrease in the isolation effect between antennas, thereby affecting the overall communication performance.

[0059] Therefore, how to improve the overall communication performance of an antenna by implementing multiple antennas with high isolation within a seamless metal frame is a technical problem that urgently needs to be solved by those skilled in the art.

[0060] In view of this, the present invention provides an antenna 100, including a metal ground plane 110, a first metal frame 120, a second metal frame 130, and ports. The first metal frame 120 is disposed on the side of the metal ground plane 110, and both ends of the first metal frame 120 are electrically connected to the metal ground plane 110. A first gap 190 is formed between the first metal frame 120 and the metal ground plane 110. The second metal frame 130 is disposed in the first gap 190 formed by the first metal frame 120 and the metal ground plane 110. Both ends of the second metal frame 130 are electrically connected to the metal ground plane 110. A second gap 200 is formed between the second metal frame 130 and the metal ground plane 110, and the second gap 200 is nested in the first gap 190. The ports include a first port 150 and a second port 160. The first port 150 is used to feed the first metal frame 120, and the second port 160 is used to feed the second metal frame 130. By nesting a second metal frame 130 within a first metal frame 120, both the first and second metal frames 120 are connected to a metal ground plane 110. This creates a first slot 190 antenna 100 between the first metal frame 120 and the metal ground plane 110, and a second slot 200 antenna 100 between the second metal frame 130 and the metal ground plane 110. This makes efficient use of limited space, eliminates the need to increase the volume of individual antennas 100, ensures the quantity of antennas 100, and guarantees good isolation and radiation performance for both the first slot 190 antenna 100 and the second slot 200 antenna 100, thereby improving the overall communication performance of the antennas 100.

[0061] You can refer to this. Figures 1 to 19 This invention provides an antenna 100, including a metal ground plane 110, a first metal frame 120, a second metal frame 130, and ports. The first metal frame 120 is disposed on the side of the metal ground plane 110, and its two ends are electrically connected to the metal ground plane 110. A first gap 190 is formed between the first metal frame 120 and the metal ground plane 110. The second metal frame 130 is disposed in the first gap 190 formed by the first metal frame 120 and the metal ground plane 110, and its two ends are electrically connected to the metal ground plane 110. A second gap 200 is formed between the second metal frame 130 and the metal ground plane 110, and the second gap 200 is nested in the first gap 190. The ports include a first port 150 and a second port 160. The first port 150 is used to feed the first metal frame 120, and the second port 160 is used to feed the second metal frame 130.

[0062] The metal floor 110 can be made of copper or aluminum. Copper has good electrical and thermal conductivity as well as high mechanical strength, and can withstand greater tensile and compressive forces. Aluminum is lightweight and inexpensive, and can reduce electromagnetic wave reflection and scattering, thereby improving the gain and directivity of the antenna 100.

[0063] The antenna 100 provided in this embodiment of the invention nests a second metal frame 130 within a first metal frame 120. Both the first metal frame 120 and the second metal frame 130 are connected to a metal ground plane 110. This forms a first slot 190 antenna 100 between the first metal frame 120 and the metal ground plane 110, and a second slot 200 antenna 100 between the second metal frame 130 and the metal ground plane 110. This makes reasonable use of limited space, does not require increasing the volume of a single antenna 100, ensures the number of antennas 100, and at the same time ensures that the first slot 190 antenna 100 and the second slot 200 antenna 100 have good isolation and radiation effects, thereby improving the overall communication performance of the antenna 100.

[0064] To facilitate understanding, we will use the frequency point where both the inner and outer frames resonate as an example: when Figure 1 When the secondary mode of the outer frame (first metal frame 120) is excited, its current mode and electric field mode are as follows: Figure 12 and Figure 13 As shown; since the inner frame (second metal frame 130) has no gaps, the secondary mode current and secondary mode electric field of the outer frame are isolated between the inner and outer frames. The inner frame acts as a shield between the inner and outer gaps. The current on the inner frame must be consistent with the secondary mode current of the outer frame because this current mode is different from the current mode of the inner frame at this frequency (see reference). Figure 16 and Figure 17 Therefore, this current mode cannot excite the radiation mode of the inner frame; at the same time, the current in the inner frame and the current in the ground part of the inner frame are in the same direction, so the electric field in the gap part of the inner frame is opposite, and the radiation fields will cancel each other out. Therefore, the inner frame does not radiate when the outer frame is excited. The inner frame, as part of the outer frame radiating metal ground 110, does not play a radiating role; and since the inner frame is part of the metal ground 110, the radiation performance of the outer frame is the same as that of a normal slot antenna 100.

[0065] when Figure 1 When the inner frame fundamental mode is excited, its current mode and electric field mode are as follows: Figure 16 and Figure 17 As shown; because the inner frame is not gapped, the fundamental mode current and fundamental mode electric field of the inner frame are confined between the inner frame and the metal floor 110. The inner frame acts as a shield between the inner and outer gaps (the second gap 200 and the first gap 190). The current on the outer frame near the inner frame must be consistent with the fundamental mode current of the inner frame because this current mode is different from the current mode of the outer frame at this frequency (see...). Figure 12 Figure 13 Therefore, this current mode cannot excite the radiation mode of the outer frame, and the outer frame does not have a radiation effect; at this time, most of the current is confined to the inner frame, and the current coupled to the outer frame is very small. At the same time, the electric field distribution between the outer frame and the inner frame is not much different from the electric field distribution outside the inner frame when there is no outer frame. Therefore, it can be considered that the electromagnetic wave is directly radiated from the gap between the inner frame and the metal floor 110, and the presence or absence of the outer frame does not affect the radiation of the inner frame.

[0066] In summary, the radiation mode of the inner frame antenna cannot be excited when the outer frame antenna is working, and the radiation mode of the outer frame antenna cannot be excited when the inner frame antenna is working. Therefore, there is good isolation between the inner and outer frame antennas.

[0067] To further facilitate understanding of the present invention, a detailed description is provided below with reference to the accompanying drawings:

[0068] like Figure 10 The diagram shows the current distribution of the antenna 100 at a frequency of 0.732 GHz when the first port 150 of the antenna 100 is excited according to an embodiment of the present invention. From the current mode, it can be observed that the radiation fundamental mode of the outer frame is excited, and the current direction of the inner frame and the metal ground plane 110 is in the same direction. The current mode of the inner frame and the metal ground plane 110 is similar to the current mode of the fundamental mode of the slot antenna 100. At this time, the inner frame cannot form a slot mode, and the entire inner frame exists as part of the outer frame metal ground plane 110. Therefore, when the outer frame is excited, the inner frame is not excited, thereby achieving a high degree of isolation between the inner and outer frames.

[0069] Figure 11 This is a schematic diagram showing the distribution of the electric field of the antenna 100 at a frequency of 0.732 GHz when the first port 150 of the antenna 100 is excited according to an embodiment of the present invention. It can be observed from the electric field mode that the radiation fundamental mode of the outer frame is excited, the electric field strength between the outer frame and the inner frame is large, and the electric field strength between the inner frame and the metal ground 110 is very small. At the same time, the electric fields are reversed. At this time, the inner frame cannot form a gap mode, and the entire inner frame exists as part of the outer frame metal ground 110. Therefore, when the outer frame is excited, the inner frame is not excited, thereby achieving a high degree of isolation between the inner and outer frames.

[0070] Figure 12This is a schematic diagram showing the current distribution of the antenna 100 at a frequency of 1.62 GHz when the first port 150 of the antenna 100 is excited according to an embodiment of the present invention. From the current mode, it can be observed that the radiated secondary mode of the outer frame is excited, and the current direction of the inner frame and the metal ground plane 110 is in the same direction. The current mode of the inner frame and the metal ground plane 110 is similar to the current mode of the secondary mode of the slot antenna 100. At this time, the inner frame cannot form a slot mode, and the entire inner frame exists as part of the outer frame metal ground plane 110. Therefore, when the outer frame is excited, the inner frame is not excited, thereby achieving a high degree of isolation between the inner and outer frames.

[0071] Figure 13 This is a schematic diagram showing the distribution of the electric field of the antenna 100 at a frequency of 1.62 GHz when the first port 150 of the antenna 100 is excited according to an embodiment of the present invention. From the electric field mode, it can be observed that the radiated secondary mode of the outer frame is excited, the electric field strength between the outer frame and the inner frame is large, and the electric field strength between the inner frame and the metal ground 110 is very small. At the same time, the electric fields are out of phase. At this time, the inner frame cannot form a slot mode, and the entire inner frame exists as part of the outer frame metal ground 110. Therefore, when the outer frame is excited, the inner frame is not excited, thereby achieving a high degree of isolation between the inner and outer frames.

[0072] Figure 14 This is a schematic diagram showing the current distribution of the antenna 100 at a frequency of 2.58 GHz when the first port 150 of the antenna 100 is excited according to an embodiment of the present invention. From the current mode, it can be observed that the radiation third mode of the outer frame is excited, and the current direction of the inner frame and the metal ground plane 110 is in the same direction. The current mode of the inner frame and the metal ground plane 110 is similar to the current mode of the third mode of the slot antenna 100. At this time, the inner frame cannot form a slot mode, and the entire inner frame exists as part of the outer frame metal ground plane 110. Therefore, when the outer frame is excited, the inner frame is not excited, thereby achieving a high degree of isolation between the inner and outer frames.

[0073] Figure 15 This is a schematic diagram showing the distribution of the electric field of the antenna 100 at a frequency of 2.58 GHz when the first port 150 of the antenna 100 is excited according to an embodiment of the present invention. From the electric field mode, it can be observed that the radiation third mode of the outer frame is excited, the electric field strength between the outer frame and the inner frame is large, and the electric field strength between the inner frame and the metal ground 110 is very small. At the same time, the electric field is out of phase. At this time, the inner frame cannot form a slot mode, and the entire inner frame exists as part of the outer frame metal ground 110. Therefore, when the outer frame is excited, the inner frame is not excited, thereby achieving a high degree of isolation between the inner and outer frames.

[0074] Figure 16This is a schematic diagram showing the current distribution of the antenna 100 at a frequency of 1.65 GHz when the second port 160 of the antenna 100 is excited in an embodiment of the present invention. It can be observed from the current mode that the fundamental mode of the inner frame is excited. At this time, the current coupled to the outer frame is very small, and the outer frame is not excited, thereby achieving a high degree of isolation between the inner and outer frames.

[0075] Figure 17 The diagram shows the distribution of the electric field of the antenna 100 at a frequency of 1.65 GHz when the second port 160 of the antenna 100 is excited in the embodiment of the present invention. It can be observed from the electric field mode that the fundamental mode of the inner frame is excited, the field strength between the inner and outer frames is small, and the outer frame is not excited, thereby achieving a high degree of isolation between the inner and outer frames.

[0076] Figure 18 The schematic diagram of the simulated return loss and isolation of the antenna provided in the embodiment of the present invention shows that at 1.65 GHz, where both antennas resonate well, the isolation of the inner and outer frame antennas is better than -20 dB, and the isolation of the inner and outer frame antennas is better than -15 dB across the entire frequency band.

[0077] Figure 19 The schematic diagram of the simulation efficiency of the antenna provided in the embodiment of the present invention shows that the emissivity of both antennas at the resonant point is higher than -2dB, and both can radiate well.

[0078] In the above embodiments, the port may further include a third port 170, which includes an inductor or a capacitor. The third port 170 is electrically connected between the first metal frame 120 and the metal ground 110, or the third port 170 is electrically connected between the second metal frame 130 and the metal ground 110, thereby adjusting the equivalent electrical length and resonant frequency of the first metal frame 120 or the second metal frame 130 through the third port 170.

[0079] like Figures 1 to 9 As shown in the above embodiment, the edges of the first metal frame 120 and the metal ground plane 110 can be flush, thereby making more rational use of the limited space without affecting the overall shape of the metal ground plane 110, thus saving space and improving the structural compactness of the antenna 100. Of course, the first metal frame 120 can also be recessed inward or protruded outward relative to the metal ground plane 110, and no specific limitation is made here.

[0080] In the above embodiments, the second metal frame 130 can be disposed in the middle part of the first gap 190 (e.g., Figure 1 As shown), it can also be set on one side of the first gap 190 (as shown). Figure 2As shown, when positioned in the middle, the isolation between the first and second borders can be more uniform; when positioned on one side, it can improve flexibility and reduce processing difficulty and cost. Furthermore, as needed, at least two or more second metal borders 130 can be nested within the first metal border 120. These second metal borders 130 can be spaced apart to increase the number of antennas.

[0081] In the above embodiments, a third metal frame 140 may also be included. The third metal frame 140 may be disposed in the second gap 200. It is understood that the third metal frame 140 and the metal ground plane 110 can form a third gap 210 antenna 100. By increasing the number of antennas 100, the overall communication performance of the antennas 100 can be further improved. Of course, if conditions permit, metal frames can be further nested within the third metal frame 140 to further increase the number of antennas 100. The third gap 210 antenna 100 can be configured as follows: Figure 3 The fourth port 180 shown is used for power supply.

[0082] In the above embodiments, there may be at least two first metal frames 120, and each first metal frame 120 may have a second metal frame 130 embedded within it. Specifically, as shown in the figure... Figure 4 As shown, two first metal frames 120 can be provided, and the two first metal frames 120 are provided on the same side of the metal floor 110. In this way, the structure of the antenna 100 can be made more compact and the space occupied by the antenna 100 can be reduced. Alternatively, the two first metal frames 120 can be provided on different sides of the metal floor 110, so that the two first metal frames 120 can have better isolation.

[0083] In the above embodiments, the shape of the first metal frame 120 can be designed in various forms, for example, as shown in... Figure 1 The rectangle shown, or, as Figure 6 As shown, the first metal frame 120 can be designed in an L-shape, and an L-shaped first gap 190 is formed between two adjacent sides of the first metal frame 120 and the metal ground 110. This design can improve the flexibility of the antenna 100 layout and make more reasonable use of the space on the sides of the metal ground 110. Of course, the first metal frame 120 can also be designed in other shapes. The specific shape can be designed according to the actual situation, and there are no restrictions here.

[0084] Furthermore, the shapes of the second metal frame 130 and the third metal frame 140 can also be designed in various forms, such as rectangles, squares, trapezoids, or similar shapes. Figure 9 The irregular shape shown.

[0085] In the above embodiments, the first port 150 and the first metal frame 120 can be electrically connected for direct power feeding. The direct power feeding structure is simple and can reduce the cost of the antenna 100.

[0086] In the above embodiments, the first port 150 may include a coupling element 171, with a gap between the coupling element 171 and the first metal frame 120 for coupling feeding. Coupling feeding can improve the transmission efficiency and bandwidth of the antenna 100. Specifically, the coupling element 171 may use a metal stub. Of course, the second slot 200 antenna 100 and the third slot 210 antenna 100 can also adopt a coupling feeding method, and their specific structures can be similar to the coupling feeding method of the first slot 190 antenna 100, which will not be described in detail here.

[0087] Furthermore, this embodiment of the invention also provides an electronic device, including the antenna 100 in the above embodiment. The antenna 100 includes a metal ground plate 110, a first metal frame 120, a second metal frame 130, and ports. The first metal frame 120 is disposed on the side of the metal ground plate 110, and its two ends are electrically connected to the metal ground plate 110. A first gap 190 is formed between the first metal frame 120 and the metal ground plate 110. The second metal frame 130 is disposed in the first gap 190 formed by the first metal frame 120 and the metal ground plate 110. Its two ends are electrically connected to the metal ground plate 110. A second gap 200 is formed between the second metal frame 130 and the metal ground plate 110, and the second gap 200 is nested in the first gap 190. The ports include a first port 150 and a second port 160. The first port 150 is used to feed power to the first metal frame 120, and the second port 160 is used to feed power to the second metal frame 130. The antenna 100 nests a second metal frame 130 within a first metal frame 120. Both the first metal frame 120 and the second metal frame 130 are connected to a metal ground plane 110. This forms a first slot 190 antenna 100 between the first metal frame 120 and the metal ground plane 110, and a second slot 200 antenna 100 between the second metal frame 130 and the metal ground plane 110. This design makes efficient use of limited space, eliminates the need to increase the volume of individual antennas 100, ensures the quantity of antennas 100, and guarantees good isolation and radiation performance for both the first slot 190 antenna 100 and the second slot 200 antenna 100, thereby improving the overall communication performance of the electronic device.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An antenna, characterized in that, The device includes a metal floor, a first metal frame, a second metal frame, and a port. The first metal frame is disposed on the side of the metal floor, and both ends of the first metal frame are electrically connected to the metal floor. A first gap is formed between the first metal frame and the metal floor. The second metal frame is disposed in the first gap formed by the first metal frame and the metal floor. Both ends of the second metal frame are electrically connected to the metal floor. A second gap is formed between the second metal frame and the metal floor. The second gap is nested in the first gap. The port includes a first port and a second port, the first port being used to power the first metal frame and the second port being used to power the second metal frame.

2. The antenna according to claim 1, characterized in that, The port also includes a third port, which includes an inductor or a capacitor and is electrically connected between the first metal frame and the metal ground, or the third port is electrically connected between the second metal frame and the metal ground.

3. The antenna according to claim 2, characterized in that, The edges of the first metal frame and the metal floor are flush.

4. The antenna according to claim 3, characterized in that, The second metal frame is located in the middle of the first gap.

5. The antenna according to claim 4, characterized in that, It also includes a third metal frame, which is disposed in the second gap.

6. The antenna according to any one of claims 1-5, characterized in that, The first metal frame has at least two parts, and the at least two first metal frames are disposed on the same side of the metal floor, or the at least two first metal frames are disposed on different sides of the metal floor.

7. The antenna according to any one of claims 1-5, characterized in that, The first metal frame is L-shaped, and the first metal frame and the two adjacent sides of the metal floor form an L-shaped first gap.

8. The antenna according to any one of claims 1-5, characterized in that, The first port is electrically connected to the first metal frame for direct power supply.

9. The antenna according to any one of claims 1-5, characterized in that, The first port includes a coupling element, and there is a gap between the coupling element and the first metal frame for coupling power supply.

10. An electronic device, characterized in that, Includes the antenna described in any one of claims 1-9.

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