Antenna and terminal

Abstract

An embodiment of the present invention provides an antenna and a terminal, wherein the antenna includes: a first radiator connected to a feed source arranged on a ground plate, wherein the first radiator is used for transmitting and receiving medium and high frequency signals, and the first radiator is also used to excite the ground plate, so that the ground plate is used as a low-frequency radiator. In certain implementation processes, the first radiator excites the ground plate so that the ground plate is used for transmitting and receiving low-frequency signals, and there is no need to separately set up a radiator for transmitting and receiving low-frequency signals, thereby reducing the size of the antenna. In addition, the first radiator is also used for transmitting and receiving medium and high frequency signals, further reducing the routing area of ​​the medium and high frequency antenna, reducing the size of the antenna, and reducing the difficulty of setting up the antenna on a terminal with limited space.

Description

Technical Field

[0001] The embodiments of the present invention relate to but are not limited to the field of communication technology, and specifically, relate to but are not limited to an antenna and a terminal. Background Art

[0002] With the emergence of 5G (5th-Generation, the fifth generation of mobile communication technology), more and more standards and frequency bands need to be supported on terminals, so more and more antennas are installed on terminals. However, the available space on the terminal is limited, so it is difficult to install antennas. Summary of the invention

[0003] The terminal and antenna provided in the embodiments of the present invention mainly solve the technical problem that the available space on the existing terminal is limited and the antenna is difficult to set up.

[0004] To solve the above technical problems, an embodiment of the present invention provides an antenna, comprising: a first radiator connected to a feed source arranged on a ground plate, the first radiator being used for transmitting and receiving medium and high frequency signals, and the first radiator being also used to excite the ground plate so as to use the ground plate as a low-frequency radiator.

[0005] Optionally, the antenna further includes: a first matching network, and the first radiator is connected to a feed source on the ground plate through the first matching network.

[0006] Optionally, the antenna further includes: a second radiator coupled to the first radiator, and a radiation frequency band of the second radiator includes a medium and high frequency band.

[0007] Optionally, the second radiator is arranged near the first radiator so that the first radiator and the second radiator are coupled when the transmitted signal is a medium or high frequency signal.

[0008] Optionally, the second radiator is disposed three-dimensionally around the first radiator.

[0009] Optionally, at least a portion of the first radiator is disposed in an area enclosed by a perpendicular line to each end point on the second radiator and the second radiator itself; or, at least a portion of the second radiator is disposed in an area enclosed by a perpendicular line to each end point on the first radiator and the first radiator itself.

[0010] Optionally, the second radiator is in a concave shape, and the first radiator is arranged inside the second radiator.

[0011] Optionally, the first radiator and the second radiator are both in an “L” shape, and the first radiator and the second radiator are arranged on the same plane and in a “door” shape.

[0012] Optionally, the first radiator and the second radiator are arranged in different planes, and the orthographic projection of the first radiator at least partially overlaps with the second radiator.

[0013] An embodiment of the present invention further provides a terminal, which includes any one of the antennas described above.

[0014] One of the above technical solutions has the following beneficial effects:

[0015] According to the antenna and terminal provided by the embodiments of the present invention, the antenna includes: a first radiation connected to a feed source arranged on a ground plate, wherein the first radiator is used for transmitting and receiving medium and high frequency signals, and the first radiator is also used to excite the ground plate, so that the ground plate is used as a low-frequency radiator. In some implementation processes, the first radiator excites the ground plate so that the ground plate is used for transmitting and receiving low-frequency signals, and there is no need to separately set a radiator for transmitting and receiving low-frequency signals, thereby reducing the size of the antenna. In addition, the first radiator is also used for transmitting and receiving medium and high frequency signals, further reducing the routing area of ​​the medium and high frequency antenna, reducing the size of the antenna, and reducing the difficulty of setting the antenna on a terminal with limited space.

[0016] Other features and corresponding beneficial effects of any technical solution in the embodiments of the present invention are explained in the latter part of the specification, and it should be understood that at least some of the beneficial effects become obvious from the records in the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an antenna according to Embodiment 1 of the present invention;

[0018] Figure 2 This is a schematic diagram of an antenna structure including a first matching network according to a first embodiment of the present invention;

[0019] Figure 3 This is a connection diagram of a first matching network and a one-out-of-N switch according to the first embodiment of the present invention;

[0020] Figure 4 is another structural schematic diagram of the antenna according to the first embodiment of the present invention;

[0021] Figure 5 A schematic diagram of the arrangement positions of the first radiator and the second radiator according to the first embodiment of the present invention;

[0022] Figure 6-1 A schematic diagram of the arrangement position of an "L"-shaped first radiator and a second radiator according to the first embodiment of the present invention;

[0023] Figure 6-2 This is a schematic diagram of another arrangement position of the "L"-shaped first radiator and the second radiator according to the first embodiment of the present invention;

[0024] Figure 6-3 A schematic diagram of another arrangement position of the first radiator and the second radiator according to the first embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the antenna structure including a second matching network according to the first embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the antenna structure of the second embodiment of the present invention;

[0027] Figure 9-1 A schematic diagram of the antenna wiring in the antenna example provided in the second embodiment of the present invention;

[0028] Figure 9-2 This is a circuit structure diagram of the antenna in the antenna example provided in Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below through specific implementation methods combined with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0030] Embodiment 1:

[0031] The space available on the terminal is limited. With the emergence of 5G (5th-Generation, the fifth generation of mobile communication technology), the terminal needs to support more and more standards and frequency bands. Therefore, the number of antennas installed on the terminal is increasing, which increases the difficulty of installing antennas on the terminal. At the same time, according to the traditional resonance principle, the wiring length of the low-frequency antenna is longer and the space is larger than that of the medium- and high-frequency antennas. For terminals that need to support low frequencies, it is more difficult to install the antenna. In order to solve the problem of difficulty in installing antennas on the terminal, an embodiment of the present invention provides an antenna, see Figure 1 , Figure 1The schematic diagram of the structure of the antenna provided in the embodiment of the present invention, the antenna 10 comprises: a first radiator 102 connected to a feed source provided on a ground plate 101, wherein the first radiator 102 is used for transmitting and receiving medium and high frequency signals, and the first radiator 102 is also used to excite the ground plate 101 so that the ground plate 101 is used as a low frequency radiator. That is to say, the antenna 10 provided in the embodiment of the present invention can be used for transmitting and receiving medium and high frequency signals and low frequency signals. For the antenna 10 to radiate low frequency and medium and high frequency signals outward, the transmission method is: the first radiator 102 receives medium and high frequency signals from the feed source, thereby radiating the medium and high frequency signals outward; the first radiator 102 can also excite the ground plate 101 connected thereto to generate low frequency, thereby radiating the low frequency signal outward through the ground plate 101; for the antenna 10 to receive low frequency and medium and high frequency signals from the outside, its principle is the same as that of radiating low frequency and medium and high frequency signals outward, and will not be repeated here. In this way, the ground plate 101 is used as a radiator for receiving and transmitting low-frequency signals, and there is no need to set up a separate radiator for radiating low-frequency signals, thereby reducing the size of the antenna 10. In addition, the excitation ground plate 101 serves as an excitation body of the low-frequency radiator as a radiator for receiving and transmitting medium and high-frequency signals, thereby realizing the multiplexing of the excitation body and the radiator, further reducing the size of the antenna 10.

[0032] In the embodiment of the present invention, the first radiator 102 is a medium-high frequency radiator to further reduce the size of the antenna 10 .

[0033] In the embodiment of the present invention, in order to better support the transmission and reception of each frequency band and improve the signal transmission and reception quality, see Figure 2 As shown, the antenna 10 also includes: a first matching network 103, and the first radiator 102 is connected to the feed source through the first matching network 103, that is, the first matching network 103 can be arranged between the feed source and the first radiator 102, one end of the first matching network 103 is connected to the feed source, and the other end is connected to the first radiator 102. In the embodiment of the present invention, in order to make the antenna 10 work in the corresponding frequency band, the first matching network 103 may include at least two sub-matching networks, and one sub-matching network is selected from them according to the required frequency band, so that the antenna 10 works in the corresponding frequency band. Among them, the sub-matching network to be connected can be selected by an N-to-one switch, and the N-to-one switch can be arranged between the feed source and the first matching network 103, and can also be arranged between the first matching network 103 and the first radiator 102, wherein N is greater than or equal to the number of sub-matching networks, and each fixed end of the N-to-one switch is respectively connected to a sub-matching network, and the moving end is connected to the feed source or the first radiator 102. If N is greater than the number of sub-matching networks, the fixed end that is not connected to the sub-matching network is used as a reserved end. For example, see Figure 3As shown, the N-to-one switch 104 is arranged between the first matching network 103 and the first radiator 102, one end of each sub-matching network of the first matching network 103 is respectively connected to the feed source, and the other end is respectively connected to the fixed end of the N-to-one switch 104, and the moving end of the N-to-one switch 104 is connected to the first radiator 102. In this way, one of the sub-matching networks is connected to the first radiator 102 through the N-to-one switch 104, so that the antenna 10 operates in the corresponding frequency band.

[0034] In the embodiment of the present invention, the first matching network 103 may be arranged on a ground plate or on other circuit boards.

[0035] In the embodiment of the present invention, see Figure 4 As shown, the antenna 10 may further include a second radiator 105, wherein the second radiator 105 is coupled with the first radiator 102, and the radiation frequency band of the second radiator 105 includes the medium and high frequency band, that is, the second radiator 105 can be used for receiving and transmitting medium and high frequency signals. In this way, when receiving medium and high frequency signals, the first radiator 102 and the second radiator 105 are coupled, so that the receiving and transmitting bandwidth of the medium and high frequency signals can be widened; for example, assuming that when the first radiator 102 receives and transmits medium and high frequency signals, the first radiator 102 is coupled with the second radiator 105, so that the receiving and transmitting frequency band of the medium and high frequency signals is widened; similarly, when the second radiator 105 receives and transmits medium and high frequency signals, the first radiator 102 is coupled with the second radiator 105, so that the receiving and transmitting frequency band of the medium and high frequency signals is widened.

[0036] In the embodiment of the present invention, the second radiator 105 may be a medium-high frequency radiator, that is, it only supports medium-high frequency bands; or, the second radiator 105 may also be a full-band radiator, that is, it supports both medium-high frequency bands and low frequency bands.

[0037] In the embodiment of the present invention, in order to couple the first radiator 102 and the second radiator 105, the second radiator 105 is arranged near the first radiator 102, so that the first radiator 102 and the second radiator 105 are coupled when the transmitted signal is a medium or high frequency signal, that is, the distance between the first radiator 102 and the second radiator 105 is less than or equal to the coupling distance, wherein the coupling distance is the distance between the first radiator 102 and the second radiator 105 is less than or equal to the distance, and the first radiator 102 and the second radiator 105 are coupled in the medium and high frequency bands.

[0038] In the embodiment of the present invention, the first radiator 102 and the second radiator 105 can be arranged in the same plane, or can also be arranged in different planes. The shapes of the first radiator 102 and the second radiator can be flexibly set according to actual needs, for example, they can be set to a straight line shape, or, in order to reduce the wiring area, can be set to a "concave" shape, an "L" shape, or a "two-stage" shape.

[0039] When the first radiator 102 and the second radiator 105 are arranged on different planes, in order to improve the coupling degree between the two and reduce the space occupied by the two, the orthographic projection of the first radiator 102 overlaps with the second radiator at least partially. That is to say, at least part of the first radiator 102 is arranged directly above or below the second radiator 105. In order to further improve the coupling degree, reduce the space occupied by the two, and maximize the bandwidth of the medium and high frequency signals, the orthographic projection of the first radiator 102 and the second radiator 105 completely overlap, that is, the first radiator 102 is completely arranged directly above or below the second radiator 105. Alternatively, when the first radiator 102 and the second radiator are arranged on different planes, the second radiator can be arranged three-dimensionally around the first radiator 102.

[0040] When the first radiator 102 and the second radiator 105 are arranged in the same plane, the arrangement positions of the first radiator 102 and the second radiator 105 can be flexibly arranged according to actual needs. In order to improve the coupling degree and reduce the antenna area, the first radiator can surround at least a portion of the second radiator (that is, at least a portion of the second radiator is arranged in the area surrounded by the perpendicular lines of the endpoints on the first radiator and the first radiator itself), or the second radiator can surround at least a portion of the first radiator (that is, at least a portion of the first radiator is arranged in the area surrounded by the perpendicular lines of the endpoints on the second radiator and the second radiator itself). For example, see Figure 5 As shown, the second radiator 105 is "concave", and the first radiator 102 is arranged in the second radiator 105 (that is, the first radiator 102 is arranged in the area surrounded by the vertical line of the two end points of the second radiator 105 and the second radiator 105 itself) to surround the first radiator 102. In this way, the coupling degree between the first radiator 102 and the second radiator 105 can be improved, the bandwidth when the medium and high frequency signals are transmitted and received can be improved, and the area of ​​the antenna 10 can be reduced, and the size of the antenna 10 can be reduced. For example, see Figure 6-1 As shown, the first radiator 102 and the second radiator 105 are both in an "L" shape. The first radiator 102 and the second radiator 105 are arranged in the same plane and are in a "door" shape. In order to improve the coupling degree, the first radiator 102 surrounds a part of the second radiator 105, that is, the part of the second radiator 105 is within the range surrounded by the vertical line of the two end points of the first radiator 102 and the first radiator 102 itself; for another example, see Figure 6-2As shown, the first radiator 102 and the second radiator 105 are in an "L" shape, the first radiator 102 and the second radiator 105 are arranged in the same plane and form a "door" shape, and the second radiator 105 surrounds a part of the first radiator 102 (that is, the part of the first radiator 102 is within the range of the vertical line of the two end points of the second radiator 105 and the second radiator 105 itself). For another example, see Figure 6-3 As shown, the first radiator 102 is in an "L" shape, and the second radiator is in a "two-step" shape. In order to improve the coupling degree, the second radiator 105 surrounds a portion of the first radiator 102 (that is, the portion of the first radiator 102 is within the range surrounded by the perpendicular line of the two end points of the second radiator 105 and the second radiator itself).

[0041] In the embodiment of the present invention, in order to improve the signal receiving quality of the second radiator 105, see Figure 7 As shown, the antenna 10 also includes: a second matching network 106 connected to the second radiator 105. It should be noted that the second matching network 106 may also include a plurality of sub-matching networks, which are then connected to the second radiator through a multiple-select-one switch, so that the corresponding sub-matching network is selected to connect to the second radiator 105 according to the frequency band to be transmitted and received.

[0042] In the embodiment of the present invention, the second radiator 105 may not be connected to the feed source, and is only used to couple with the first radiator 102 to broaden the receiving and transmitting bandwidth of the medium and high frequency signals when the first radiator 102 transmits and receives medium and high frequency signals. Alternatively, the second radiator 105 may also be connected to the feed source. The first radiator 102 and the second radiator 105 may be connected to the same feed source, or, in order to improve the isolation, the first radiator 102 and the second radiator 105 are connected to different feed sources. The connection mode among the feed source, the second radiator 105 and the second matching network 106 may be: one end of the second radiator 105 is connected to the feed source, and the other end is connected to the second matching network 106; or one end of the second matching network 106 is connected to the feed source, and the other end is connected to the second matching network 106.

[0043] The antenna 10 described in the embodiment of the present invention can be applied to various terminals. For example, it can be applied to terminals that support 4 or more low-frequency antennas, including but not limited to terminals that support low-frequency 4x4 MIMO (Multiple-Input Multiple-Output) in 5G SA (Standalone) mode, terminals that support simultaneous transmission and reception of low-frequency 4G (the 4 Generation mobile communication technology) and 5G in NSA (Non-Standalone, 5G non-independent networking) mode, terminals that support medium and high frequency 4X4 MIMO in 4G and 5G, etc.

[0044] The antenna provided by an embodiment of the present invention includes: a first radiator connected to a feed source arranged on a ground plate, wherein the first radiator is used for transmitting and receiving medium and high frequency signals, and the first radiator is also used to excite the ground plate, so that the ground plate acts as a low-frequency radiator. In some implementation processes, the first radiator excites the ground plate so that the ground plate is used for transmitting and receiving low-frequency signals, and there is no need to separately set up a radiator for transmitting and receiving low-frequency signals, thereby reducing the size of the antenna. In addition, the first radiator is also used for transmitting and receiving medium and high frequency signals, further reducing the routing area of ​​the medium and high frequency antenna, reducing the size of the antenna, and reducing the difficulty of setting up the antenna on a terminal with limited space.

[0045] Embodiment 2:

[0046] For better understanding, the embodiments of the present invention are described in conjunction with more specific examples. Figure 8 As shown, Figure 8 The schematic diagram of the structure of the antenna 10 provided in the embodiment of the present invention includes: a ground plane 101, a first radiator 102, and a second radiator 106. The ground plane 101 is provided with a first matching network 103, a second matching network 104, and a feed source.

[0047] The first radiator 102 is connected to a feed source on the ground plane 101 through a first matching network 103 , and the second radiator 105 is connected to a feed source on the ground plane 101 through a second matching network 106 . It should be noted that the first radiator 102 and the second radiator 105 are connected to different feed sources.

[0048] It should be noted that the first radiator 102 is a medium-high frequency radiator, and the second radiator 105 is a medium-high frequency radiator.

[0049] In the embodiment of the present invention, the first radiator 102 radiates medium and high frequency signals (i.e., the first radiator 102 receives and transmits medium and high frequency signals), and the first radiator 102 and the first matching network 103 excite the ground plate 101, so that the ground plate 101 radiates low frequency signals (i.e., the first radiator 102 and the first matching network 103 excite the ground plate 101, so that the ground plate 101 receives and transmits low frequency signals). In this way, the ground plate 101 is used to transmit and receive low frequency signals, and there is no need to set up an additional low frequency radiator, thereby reducing the size of the antenna 10. In addition, the excitation body of the excitation ground plate 101 as a low frequency radiator is a radiator for transmitting and receiving medium and high frequency signals, so that the excitation body and the radiator are reused, and the size of the antenna 10 is further reduced.

[0050] In the embodiment of the present invention, the first radiator 102 is in a "concave" shape, the second radiator 105 is in a "concave" shape, and the first radiator 102 is arranged in the second radiator 105, so that the first radiator 102 and the second radiator 105 are coupled, and in this arrangement, the coupling degree of the first radiator 102 and the second radiator 105 is higher, and the expanded bandwidth is wider. In this way, when the first radiator 102 transmits and receives medium and high frequency signals, the existence of the second radiator 105 coupled thereto can broaden the transmission and reception bandwidth of the medium and high frequency signals; of course, when the second radiator 105 transmits and receives medium and high frequency signals, the existence of the first radiator 102 coupled thereto can broaden the transmission and reception bandwidth of the medium and high frequency signals.

[0051] For better understanding, here is an example:

[0052] See also Figure 9-1 and Figure 9-2 As shown, Figure 9-1 is a schematic diagram of the routing of the antenna 10, Figure 9-2 : is a circuit structure diagram of an antenna, in which the antenna 10 includes a first radiator 102, a ground plate 101, and a second radiator 105. A first matching network 103, a second matching network 106, and a feed are provided on the ground plate 101. The first radiator 102 is connected to the feed on the ground plate 101 through the first matching network 103, and the second radiator 105 is connected to the feed on the ground plate 101 through the second matching network 106. The first radiator 102 and the second radiator 105 are connected to different feeds. The first radiator 102 is in a "concave" shape, and the second radiator 105 is in a "concave" shape. The first radiator 102 is arranged in the second radiator 105. The first radiator 102 and the second radiator 105 are both medium and high frequency radiators.

[0053] The first matching network 103 includes a capacitor 1031, a resistor 1033, and a grounding point 1032. The feed source on the grounding plate 101 is connected to one end of the capacitor 1031 and one end of the resistor 1033, the other end of the resistor 1033 is connected to the grounding point 1032, and the other end of the capacitor 1031 is connected to the first radiator 102. The values ​​of the capacitor 1031 and the resistor 1033 can be flexibly set according to actual needs. For example, the capacitor 1031 is 1pF (picofarad) and the resistor 1033 is 12 nanoohms. The second matching network 106 includes a resistor 1061, a resistor 1062, a capacitor 1063, and a grounding point 1064. The second radiator 105 is connected to one end of the resistor 1061, the other end of the resistor 1061 is connected to one end of the resistor 1062 and one end of the capacitor 1063, the other end of the capacitor 1063 is connected to the grounding point 1064, and the other end of the resistor 1062 is connected to the feed source set on the grounding plate 101. The values ​​of resistor 1061, resistor 1062 and capacitor 1063 can be flexibly set as needed, for example, the resistance of resistor 1061 is 3 nanoohms, the resistance of resistor 1062 is 1 nanoohm, and the capacitor 1063 is 0.7 pF. It should be noted that the first radiator 102 and the second radiator 105 are connected to different feed sources.

[0054] The antenna provided by an embodiment of the present invention includes: a first radiator connected to a feed source arranged on a ground plate, wherein the first radiator is used for transmitting and receiving medium and high frequency signals, and the first radiator is also used to excite the ground plate, so that the ground plate acts as a low-frequency radiator. In some implementation processes, the first radiator excites the ground plate so that the ground plate is used for transmitting and receiving low-frequency signals, and there is no need to separately set up a radiator for transmitting and receiving low-frequency signals, thereby reducing the size of the antenna. In addition, the first radiator is also used for transmitting and receiving medium and high frequency signals, further reducing the routing area of ​​the medium and high frequency antenna, reducing the size of the antenna, and reducing the difficulty of setting up the antenna on a terminal with limited space.

[0055] Embodiment three:

[0056] The embodiment of the present invention provides a terminal, which includes but is not limited to a mobile terminal, a fixed terminal, etc. Among them, the mobile terminal includes but is not limited to a smart phone, a tablet computer, a smart bracelet, a smart watch, etc.

[0057] A terminal provided in an embodiment of the present invention includes the antenna as described in any one of the above-mentioned embodiments 1 or 2.

[0058] The terminal provided in an embodiment of the present invention includes an antenna, which includes: a first radiator connected to a feed source arranged on a ground plate, wherein the first radiator is used for transmitting and receiving medium and high frequency signals, and the first radiator is also used to excite the ground plate, so that the ground plate is used as a low-frequency radiator. In some implementation processes, the first radiator excites the ground plate so that the ground plate is used for transmitting and receiving low-frequency signals, and there is no need to separately set a radiator for transmitting and receiving low-frequency signals, thereby reducing the size of the antenna. In addition, the first radiator is also used for transmitting and receiving medium and high frequency signals, further reducing the routing area of ​​the medium and high frequency antenna, reducing the size of the antenna, and reducing the difficulty of setting the antenna on a terminal with limited space.

[0059] The above contents are further detailed descriptions of the embodiments of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the embodiments of the present invention belong, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An antenna, comprising: A first radiator connected to a feed source provided on the ground plate, the first radiator being used for transmitting and receiving medium and high frequency signals, and the first radiator being also used for exciting the ground plate so that the ground plate is used as a low frequency radiator; The antenna further includes: a second radiator coupled to the first radiator, and a radiation frequency band of the second radiator includes a medium and high frequency band.

2. The antenna according to claim 1, characterized in that The antenna further includes: a first matching network, and the first radiator is connected to a feed source on the ground plate through the first matching network.

3. The antenna according to claim 1, characterized in that The second radiator is arranged near the first radiator so that the first radiator and the second radiator are coupled when the transmitted signal is a medium or high frequency signal.

4. The antenna according to claim 3, characterized in that The second radiator is disposed three-dimensionally around the first radiator.

5. The antenna according to claim 3, characterized in that The first radiator is at least partially arranged in the area enclosed by the perpendicular lines of the end points of the second radiator and the second radiator itself; or, the second radiator is at least partially arranged in the area enclosed by the perpendicular lines of the end points of the first radiator and the first radiator itself.

6. The antenna according to claim 5, characterized in that The second radiator is in a concave shape, and the first radiator is arranged inside the second radiator.

7. The antenna according to claim 5, characterized in that The first radiator and the second radiator are both in an "L" shape, and the first radiator and the second radiator are arranged on the same plane and in a "door" shape.

8. The antenna according to claim 3, characterized in that The first radiator and the second radiator are arranged in different planes, and the orthographic projection of the first radiator at least partially overlaps with the second radiator.

9. A terminal, comprising the antenna according to any one of claims 1 to 8.

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