Antenna and electronic equipment

Abstract

The utility model provides an antenna and electronic equipment, and relates to the technical field of antennas. The antenna comprises a first antenna unit, and the first antenna unit comprises a first radiator; the second antenna unit comprises a second radiating body; the two ends, in the length direction, of the microstrip line are connected with the first radiator and the second radiator respectively, and the microstrip line is provided with a first feed port and a second feed port; wherein projections of the first antenna unit and the second antenna unit along a second direction perpendicular to the length direction at least partially fall between the first feed port and the second feed port, a first signal can be transmitted between the first feed port and the first radiator, and a second signal can be transmitted between the second feed port and the second radiator. The first signal and the second signal do not interfere with each other.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of antennas, and in particular to an antenna and an electronic device. BACKGROUND

[0002] In terms of improving the isolation of an antenna, one way in the related art is to use a decoupling resonator to achieve decoupling between multiple antennas, but the decoupling branch will occupy extra space; another way is to place the antennas at a far distance in the related electronic device, such as the upper left corner and the lower right corner, but the isolation of this way still cannot meet the demand. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application provide the following technical solutions:

[0004] The first aspect of the present application provides an antenna, comprising: a first antenna unit, the first antenna unit comprising a first radiator; a second antenna unit, the second antenna unit comprising a second radiator; a microstrip line, the two ends of the microstrip line along the length direction are connected to the first radiator and the second radiator respectively, and the microstrip line is provided with a first feed port and a second feed port; wherein the projection of the first antenna unit and the second antenna unit along a second direction perpendicular to the length direction at least partially falls between the first feed port and the second feed port, a first signal can be transmitted between the first feed port and the first radiator, and a second signal can be transmitted between the second feed port and the second radiator, the first signal and the second signal do not interfere with each other.

[0005] In some embodiments of the present application, the first radiator and the second radiator are symmetrically arranged, and the first radiator, the second radiator and the microstrip line enclose a ring; the first feed port and the second feed port are symmetrically arranged on the microstrip line.

[0006] In some embodiments of the present application, the antenna further comprises: a dielectric substrate, the first antenna unit, the second antenna unit and the microstrip line are arranged on a first surface of the dielectric substrate, a second surface of the dielectric substrate opposite to the first surface is connected with a ground plate; the first radiator and the second radiator are connected to the ground plate at the end away from the microstrip line.

[0007] In some embodiments of the present application, the first antenna unit and the second antenna unit are IFA antennas, and the first antenna unit and the second antenna unit are symmetrically arranged.

[0008] In some embodiments of the present application, the first antenna unit further comprises a third radiator, one end of the third radiator is connected with the first radiator, and the other end is connected with the ground plate; the second antenna unit further comprises a fourth radiator, one end of the fourth radiator is connected with the second radiator, and the other end is connected with the ground plate; the third radiator and the fourth radiator are the same radiator.

[0009] In some embodiments of the present application, the first signal has a first frequency band, and the second signal has a second frequency band, the first frequency band being the same as the second frequency band.

[0010] In some embodiments of the present application, the first signal is a signal conforming to a Bluetooth protocol Bluetooth standard, and the second signal is a signal conforming to a wireless fidelity protocol WiFi standard.

[0011] In some embodiments of the present application, the impedance of the microstrip line is 50Ω.

[0012] In some embodiments of the present application, the antenna further comprises a pair of metal sheets, and the pair of metal sheets are respectively connected with the first feeding port and the second feeding port.

[0013] The second aspect of the present application provides an electronic device, comprising an antenna, the antenna comprising: a first antenna unit, the first antenna unit comprising a first radiator; a second antenna unit, the second antenna unit comprising a second radiator; a microstrip line, the microstrip line being connected with the first radiator and the second radiator at two ends along a length direction, and the microstrip line being provided with a first feeding port and a second feeding port; wherein a projection of the first antenna unit and the second antenna unit along a second direction perpendicular to the length direction at least partially falls between the first feeding port and the second feeding port, a first signal can be transmitted between the first feeding port and the first radiator, and a second signal can be transmitted between the second feeding port and the second radiator, the first signal and the second signal not interfering with each other; a display screen; a shell, the shell covering a circumferential side of the display screen, the shell and the display screen enclosing a cavity, the antenna being arranged in the cavity and located within a range in which the shell covers the circumferential side of the display screen. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and other objects, features and advantages of the example embodiments of the present application will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which several embodiments of the present application are shown by way of example, and wherein like or corresponding elements show like or corresponding parts, by referring to which; drawings, wherein:

[0015] Figure 1A structural schematic diagram of an antenna according to an embodiment of the present application is shown schematically.

[0016] Figure 2 A matching and isolation degree schematic diagram of an antenna according to an embodiment of the present application is shown schematically.

[0017] Figure 3 A radiation efficiency schematic diagram of an antenna according to an embodiment of the present application is shown schematically.

[0018] Figure 4 A simulation result diagram of an envelope correlation coefficient (ECC) of an antenna according to an embodiment of the present application is shown schematically.

[0019] Figure 5 A radiation pattern diagram of a first feeding port of an antenna according to an embodiment of the present application is shown schematically.

[0020] Figure 6 A radiation pattern diagram of a second feeding port of an antenna according to an embodiment of the present application is shown schematically.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1. first antenna unit; 101. first radiator; 102. third radiator; 2. second antenna unit; 201. second radiator; 202. fourth radiator; 3. microstrip line; 4. first feeding port; 5. second feeding port; 6. ground shorting pin. DETAILED DESCRIPTION

[0023] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0024] It should be noted that unless otherwise specified, technical or scientific terms used in the present application should be understood as their common meaning to those skilled in the art to which the present application pertains.

[0025] An antenna is a device that can effectively radiate and receive electromagnetic waves. When a signal is fed into an antenna, the antenna converts high-frequency current energy into electromagnetic waves and radiates them into space. When another antenna is within this radiation field, it will receive some of the radiated energy. This energy will induce a current in the receiving antenna, causing coupling between the antennas. One approach in related technologies is to use decoupling resonators to decouple multiple antennas, but this decoupling process occupies additional space. Another approach is to place the antennas at a distance in related electronic devices, such as in the upper left or lower right corners, but this method still cannot achieve the required isolation.

[0026] Therefore, the technical solution of this application sets a microstrip line between two antenna elements. The microstrip line can adjust the impedance of the differential mode and the common mode so that the impedance amplitudes of the differential mode and the common mode are equal and the phases are opposite to cancel each other out. This achieves high isolation between the two feed ports, thus eliminating the need to insert various isolation enhancement structures in the two antenna elements to enhance isolation, and also eliminating the need to occupy additional space.

[0027] Example 1

[0028] This application provides an antenna, such as... Figure 1 As shown, it includes: a first antenna element 1, which includes a first radiator 101; a second antenna element 2, which includes a second radiator 201; and a microstrip line 3, which connects the first radiator 101 and the second radiator 201 at both ends along its length, and has a first feed port 4 and a second feed port 5. The projections of the first antenna element 1 and the second antenna element 2 along a second direction perpendicular to the length direction at least partially fall between the first feed port 4 and the second feed port 5. A first signal can be transmitted between the first feed port 4 and the first radiator 101, and a second signal can be transmitted between the second feed port 5 and the second radiator 201. The first signal and the second signal do not interfere with each other.

[0029] The antenna comprises a first antenna element 1 and a second antenna element 2. The first antenna element 1 is composed of a first radiator 101, and the second antenna element 2 is composed of a second radiator 201. The radiator is the key part of the antenna for signal radiation and reception. The first radiator 101 and the second radiator 201 can be made of metal and can be designed with specific shapes (such as inverted F-shape, L-shape, etc.) to adapt to the signal radiation requirements of different frequency bands.

[0030] The first antenna unit 1 and the second antenna unit 2 are connected by a microstrip line 3, and the microstrip line 3 is provided with a first feeding port 4 and a second feeding port 5. When the antenna is in operation, a first signal fed from the first feeding port 4 can be directly transmitted to the first radiator 101, and a second signal fed from the second feeding port 5 can be directly transmitted to the second radiator 201.

[0031] Since the first antenna unit 1 and the second antenna unit 2 overlap along the projection part perpendicular to the length direction of the microstrip line 3 between the two feeding ports, it indicates that in the planar layout, the two antenna units are closely adjacent to form a compact structure. However, although they are close in physical position, the microstrip line 3 can adjust the impedances of the differential mode and the common mode, so that the amplitudes of the differential mode and the common mode are equal and the phases are opposite to cancel each other out, thereby reducing the mutual interference between the antenna units.

[0032] The antenna provided by the embodiment of the present application can realize the decoupling and enhance the isolation effect by arranging the feeding ports in the middle of the microstrip line 3 and connecting the two ends to the antenna units, introducing a transmission line with a decoupling function, and ensuring the independence of the first signal and the second signal in the transmission process. Thus, the antenna can realize high isolation while maintaining a compact size, thereby improving the overall performance and efficiency of the antenna.

[0033] In some embodiments, the first radiator 101 and the second radiator 201 are symmetrically arranged, and the first radiator 101, the second radiator 201 and the microstrip line 3 enclose a ring shape; the first feeding port 4 and the second feeding port 5 are symmetrically arranged on the microstrip line 3.

[0034] The first radiator 101 and the second radiator 201 are symmetric structures, which can be mirror-symmetric with respect to the central axis or a certain center point of the microstrip line 3. The first radiator 101, the second radiator 201 and the microstrip line 3 enclose a ring structure. The first feeding port 4 and the second feeding port 5 are symmetrically arranged on the microstrip line 3, i.e., they are respectively located at the two ends of the microstrip line 3 or symmetrically with respect to the center point of the ring structure.

[0035] By symmetrically arranging the first radiator 101 and the second radiator 201 and enclosing a ring shape with the microstrip line 3, the antenna presents a regular and balanced form in space, which helps the antenna to have more uniform radiation characteristics in all directions in space. The symmetric feeding port position makes the transmission paths of the two signals on the microstrip line 3 have the same electrical characteristics, reducing signal interference caused by path differences. Compared with the asymmetric structure, the ring symmetric structure can reduce the concentration or attenuation of signals in certain directions, improve the uniformity of the signal coverage range. Moreover, the ring structure can realize compact arrangement while maintaining the performance of the antenna, which is suitable for portable devices and space-limited applications.

[0036] In some embodiments, the antenna further comprises: a dielectric substrate, the first antenna unit 1, the second antenna unit 2 and the microstrip line 3 are arranged on a first surface of the dielectric substrate, a second surface of the dielectric substrate opposite to the first surface is connected with a ground plate; the first radiator 101 and the second radiator 201 are connected to the ground plate at an end away from the microstrip line 3.

[0037] A dielectric substrate is used as the bearing base for each component of the antenna. The dielectric substrate serves as a bottom support material, which not only provides mechanical support, but also optimizes the propagation characteristics of electromagnetic waves by selecting the dielectric constant and thickness, reduces energy loss during signal transmission, and improves the overall efficiency of the antenna. The first antenna unit 1, the second antenna unit 2 and the microstrip line 3 connecting them are all arranged on the first surface of the dielectric substrate. For example, when manufacturing an antenna in the form of a printed circuit board (PCB), the first antenna unit 1, the second antenna unit 2 and the microstrip line 3 can be manufactured on the designated surface of the dielectric substrate through processes such as photolithography and etching.

[0038] A ground plate is connected to the second surface of the dielectric substrate opposite to the first surface. The ground plate is an important component in the antenna structure, which provides a reference ground plane for the antenna. The first radiator 101 and the second radiator 201 are connected to the ground plate at an end away from the microstrip line 3, forming a complete antenna structure. Feeding can be achieved by punching holes in the dielectric substrate and connecting the microstrip line 3 with the ground plate through a coaxial line passing through the dielectric substrate. Integrating all components on one dielectric substrate simplifies the assembly process of the antenna while maintaining a compact form factor.

[0039] In some embodiments, the first antenna unit 1 and the second antenna unit 2 are IFA antennas, and the first antenna unit 1 and the second antenna unit 2 are symmetrically arranged.

[0040] Both the first antenna unit 1 and the second antenna unit 2 are IFA (Inverted-FAntenna) antennas. IFA antenna is a common type of planar antenna, which is usually composed of a stub, a feeding part and a ground part. For the first antenna unit 1, the first radiator 101 will be designed in an inverted-F shape, and similarly, the second radiator 201 of the second antenna unit 2 is also in an inverted-F shape.

[0041] The first antenna unit 1 and the second antenna unit 2 are arranged on the dielectric substrate in a symmetrical manner, that is, the two inverted-F-shaped radiators are symmetrically arranged with respect to the center point of the microstrip line 3, so that the signal path fed into the first antenna unit 1 from the first feed port 4 and the signal path fed into the second antenna unit 2 from the second feed port 5 have structural and electrical symmetry. By symmetrical arrangement and using the microstrip line 3 as a feed line, the electromagnetic coupling between the two antennas can be effectively reduced. Moreover, the IFA antenna has the characteristics of low profile and small size, and is suitable for space-limited application scenarios such as mobile phones, tablets and other portable electronic devices.

[0042] In some embodiments, as shown in FIG. 1, the first antenna unit 1 further includes a third radiator 102, one end of the third radiator 102 is connected with the first radiator 101, and the other end is connected with the ground plate; the second antenna unit 2 further includes a fourth radiator 202, one end of the fourth radiator 202 is connected with the second radiator 201, and the other end is connected with the ground plate; the third radiator 102 and the fourth radiator 202 are the same radiator. Figure 1

[0043] The first antenna unit 1 and the second antenna unit 2 are both IFA antennas, and the two IFA antennas are symmetrically arranged. The first radiator 101 of the first antenna unit 1 is a feed part of the IFA antenna, and the third radiator 102 is a ground part of the IFA antenna. The second radiator 201 of the second antenna unit 2 is a feed part of the IFA antenna, and the fourth radiator 202 is a ground part of the IFA antenna. The third radiator 102 and the fourth radiator 202 coincide to form the same radiator, which can be a straight metal line, and simultaneously connects the first radiator 101, the second radiator 201 and the ground plate. The common ground radiator can be connected with the ground plate through a ground shorting pin 6, the ground shorting pin 6 connects the common ground radiator with the ground plate, which can adjust the input impedance of the antenna, so that the impedance of the feed line circuit is better matched, and is closer to 50Ω, thereby reducing signal reflection and improving signal transmission efficiency. The radius of the ground shorting pin 6 can be 0.3mm.

[0044] Although the first antenna unit 1 and the second antenna unit 2 share a radiator, the symmetrical arrangement and the microstrip line 3 can effectively reduce the electromagnetic coupling between the two antenna units. In addition, the shared radiator serves as part of the ground path for both antenna units, which can significantly save space and realize the miniaturization of the antenna, and is suitable for portable devices and other space-limited applications.

[0045] In some embodiments, the first signal has a first frequency band, and the second signal has a second frequency band, and the first frequency band is the same as the second frequency band.

[0046] ​The first antenna unit 1 and the second antenna unit 2 are inverted F-shaped antennas (IFA), which are symmetrically arranged and connected by a microstrip line 3. The microstrip line 3 is provided with symmetric first and second feeding ports 4 and 5 for feeding signals of the same frequency band, respectively. Since the first antenna unit 1 and the second antenna unit 2 are symmetrically arranged, the first antenna unit 1 and the second antenna unit 2 have the same structure and can process signals of the same frequency band, but they work independently and do not interfere with each other. For example, the first antenna unit 1 and the second antenna unit 2 can be used to process the 2.4 GHz WiFi frequency band, or process the 5 GHz WiFi frequency band, or process the 2.4 GHz WiFi frequency band and the 2.4 GHz Bluetooth signal frequency band, respectively.

[0047] Although the two antenna units are closely adjacent, the impedance characteristics and decoupling effect of the microstrip line 3 can significantly reduce the mutual interference between signals of the same frequency band, ensuring that the signals of each frequency band can be transmitted independently and clearly. The antenna has compactness, which can reduce the size without sacrificing performance, and is suitable for small portable electronic devices.

[0048] In some embodiments, the first signal is a signal conforming to the Bluetooth protocol Bluetooth standard, and the second signal is a signal conforming to the wireless fidelity protocol WiFi standard.

[0049] The first signal is a signal conforming to the Bluetooth protocol Bluetooth standard, and the Bluetooth signal usually works in the 2.4 GHz frequency band, has the characteristics of low power consumption and short distance communication. It is suitable for connecting various Bluetooth devices such as Bluetooth earphones, Bluetooth mice, Bluetooth keyboards, etc., to realize data exchange and simple control functions between devices. The second signal is a signal conforming to the wireless fidelity protocol WiFi standard, which can generally work in the 2.4 GHz or 5 GHz frequency band, providing a higher data transmission rate, and is used to connect the Internet and transmit a large amount of data, such as browsing web pages, watching videos, and downloading files.

[0050] The two antenna units are symmetrically arranged, connected by a microstrip line 3, and the microstrip line 3 is provided with first and second feeding ports 4 and 5 for feeding Bluetooth signals and WiFi signals, respectively. Although the two antenna units are closely adjacent, the impedance characteristics and decoupling effect of the microstrip line 3 can significantly reduce the mutual interference between signals of different protocols, ensuring that the signals of each protocol can be transmitted independently and clearly. By integrating Bluetooth signals and WiFi signals in one antenna system, the antenna can support both Bluetooth and WiFi protocols at the same time, without the need for separate antennas for Bluetooth and WiFi, saving device space and cost, and improving the functionality and convenience of the device.

[0051] In some embodiments, the impedance of the microstrip line 3 is 50 Ω.

[0052] 50Ω is one of the commonly used transmission line impedance standards in wireless communication systems, and selecting this impedance value helps to minimize reflection loss and improve signal transmission efficiency. When the impedance of the source end and the load end is equal, theoretically, maximum power transfer can be achieved, reducing energy loss. Precise control of the 50Ω impedance can improve the decoupling performance of the microstrip line 3, further reducing mutual interference between different frequency bands or protocols.

[0053] To ensure that the impedance of the microstrip line 3 is 50Ω, precise calculation and design can be performed according to factors such as the dielectric constant, thickness, and wire width of the dielectric substrate, and specialized electromagnetic simulation software (such as HFSS, CST, etc.) can be used to optimize the physical parameters of the microstrip line 3. In the antenna provided by the embodiments of the present application, based on the dielectric constant of the dielectric substrate being 4.4 and the thickness being 1.6mm, through continuous optimization of the electromagnetic simulation software, the length of the microstrip line 3 can be obtained as 14.4mm, the width can be obtained as 3mm, and the distance between the first feed port 4 and the second feed port 5 can be obtained as 11mm.

[0054] In some embodiments, the antenna further comprises: a pair of metal sheets, which are respectively connected to the first feed port 4 and the second feed port 5.

[0055] The metal sheets can be processed from metal plates, such as copper sheets or aluminum sheets. They are respectively connected to the first feed port 4 and the second feed port 5, and can be connected to the feed ports in a welding manner to ensure good electrical connection. In actual operation, when a coaxial cable is used for feeding, the inner conductor of the coaxial cable is connected to the metal sheet-like structure, and the outer conductor is connected to the ground plate below. As the connection point of the inner conductor of the coaxial cable, the metal sheet-like structure plays a role in feeding, effectively transmitting signals from the coaxial cable to the antenna system.

[0056] The specific size of the metal sheet-like structure can be determined according to the operating frequency, bandwidth, and required electrical performance of the antenna. It can be rectangular, circular, or other shapes, and its shape and size will affect the input impedance, bandwidth, and other performance indicators of the antenna. Simulation and optimization can be performed through electromagnetic simulation software to find the optimal size and shape. Through continuous optimization of the electromagnetic simulation software, the metal sheet size provided by the embodiments of the present application is a square structure of 1mm x 1mm.

[0057] The antenna provided by the embodiments of the present application can achieve decoupling by using one microstrip line 3 to connect two antenna units, and the structure is simple. For example, Figure 2As shown in the figure, S11 represents the matching degree of the first antenna unit 1, S22 represents the matching degree of the second antenna unit 2, and S21 represents the isolation degree between the two antenna units. It can be seen that the isolation degree in the 2.4 GHz operating frequency band can reach more than 30 dB, so that the effect of the isolation degree of the antenna is significantly improved, and the high isolation degree can meet the application requirements such as independent Bluetooth. As shown in the figure Figure 5 and Figure 6 As shown in the figure, by arranging the microstrip line 3, the directions of the two feeding ports do not coincide, so that the ECC (Envelope Correlation Coefficient) of the two antenna ports is very low due to the high isolation degree and the irrelevance of the directional diagram, as shown in the figure Figure 3 As shown in the figure, the highest value in the 2.4 GHz operating frequency band is only 0.007, so that the optimized antenna meets the design requirements. As shown in the figure Figure 4 As shown in the figure, by using the antenna structure provided in the embodiment of the present application, the radiation frequency of the antenna is close to 90% in the 2.4 GHz operating frequency band, which greatly improves the radiation frequency of the antenna. The antenna provided in the embodiment of the present application does not need an additional decoupling network and a decoupling resonator, and by sharing one radiator by the two antenna units, the spatial layout of the antenna is greatly reduced.

[0058] Embodiment 2

[0059] The embodiment of the present application provides an electronic device, which comprises,

[0060] an antenna, comprising: a first antenna unit 1, the first antenna unit 1 comprising a first radiator 101; a second antenna unit 2, the second antenna unit 2 comprising a second radiator 201; a microstrip line 3, the two ends of the microstrip line 3 along the length direction being connected with the first radiator 101 and the second radiator 201 respectively, and the microstrip line 3 being provided with a first feeding port 4 and a second feeding port 5; wherein the projection of the first antenna unit 1 and the second antenna unit 2 along a second direction perpendicular to the length direction at least partially falls between the first feeding port 4 and the second feeding port 5, a first signal can be transmitted between the first feeding port 4 and the first radiator 101, and a second signal can be transmitted between the second feeding port 5 and the second radiator 201, the first signal and the second signal not interfering with each other;

[0061] a display screen;

[0062] a shell, the shell covering the periphery of the display screen, the shell and the display screen enclosing a cavity, the antenna being arranged in the cavity and located in the range of the shell covering the periphery of the display screen.

[0063] The electronic device is mainly composed of an antenna, a display screen and a shell. The display screen, as a component for displaying information, is usually a liquid crystal display screen, an organic light-emitting diode display screen, etc., and is placed on the front or main display area of the device. The shell covers the periphery of the display screen and, together with the display screen, encloses a cavity. The shell can be made of plastic, metal or composite material, and its main function is to provide protection and support for the electronic device. The antenna, as an important signal transceiver component, is arranged in the cavity and located in the range of the shell covering the periphery of the display screen, so as to make full use of the internal space of the device and avoid the exposure of the antenna, thereby ensuring the integrity and aesthetics of the appearance of the device.

[0064] When the electronic device is working, the first signal input from the external signal source enters the microstrip line 3 through the first feeding port 4 and is then transmitted to the first radiating body 101 to realize the radiation of the signal; similarly, the second signal enters the microstrip line 3 through the second feeding port 5 and is finally transmitted to the second radiating body 201. Since the first antenna unit 1 and the second antenna unit 2 can be closely adjacent in space and the mutual interference of the first signal and the second signal is ensured by the microstrip line 3, the antenna has the characteristics of compactness and miniaturization, thereby reducing the internal space occupied by the electronic device and being able to well adapt to the requirement of miniaturization of modern electronic devices.

[0065] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An antenna, characterized by Comprise: a first antenna unit, the first antenna unit comprising a first radiator; a second antenna unit, the second antenna unit comprising a second radiator; a microstrip line, the microstrip line connecting the first radiator and the second radiator at two ends along a length direction, the microstrip line being provided with a first feeding port and a second feeding port; wherein, projections of the first antenna unit and the second antenna unit along a second direction perpendicular to the length direction at least partially fall between the first feeding port and the second feeding port, a first signal being capable of being transmitted between the first feeding port and the first radiator, and a second signal being capable of being transmitted between the second feeding port and the second radiator, the first signal and the second signal not interfering with each other.

2. The antenna according to claim 1, wherein: the first radiator and the second radiator are symmetrically arranged, and the first radiator, the second radiator and the microstrip line enclose a ring shape; the first feeding port and the second feeding port are symmetrically arranged on the microstrip line.

3. The antenna according to claim 1, wherein, Further comprise: a dielectric substrate, the first antenna unit, the second antenna unit and the microstrip line being arranged on a first surface of the dielectric substrate, a second surface of the dielectric substrate opposite to the first surface being connected with a ground plate; the first radiator and the second radiator being connected with the ground plate at an end away from the microstrip line.

4. The antenna according to claim 3, wherein: the first antenna unit and the second antenna unit are IFA antennas, and the first antenna unit and the second antenna unit are symmetrically arranged.

5. The antenna according to claim 4, wherein: the first antenna unit further comprises a third radiator, one end of the third radiator being connected with the first radiator, and the other end being connected with the ground plate; the second antenna unit further comprises a fourth radiator, one end of the fourth radiator being connected with the second radiator, and the other end being connected with the ground plate; the third radiator and the fourth radiator are the same radiator.

6. The antenna according to claim 1, wherein: the first signal has a first frequency band, and the second signal has a second frequency band, the first frequency band being the same as the second frequency band.

7. The antenna according to claim 5, wherein: the first signal is a signal conforming to Bluetooth standard, and the second signal is a signal conforming to WiFi standard.

8. The antenna according to claim 1, wherein: an impedance of the microstrip line is 50Ω.

9. The antenna according to claim 1, wherein, Further comprise: a pair of metal sheets, the pair of metal sheets being respectively connected with the first feeding port and the second feeding port.

10. An electronic device, comprising: Comprise, The antenna comprises: a first antenna unit comprising a first radiator; a second antenna unit comprising a second radiator; a microstrip line connected to the first radiator and the second radiator at two ends along a length direction, and provided with a first feeding port and a second feeding port; wherein projections of the first antenna unit and the second antenna unit along a second direction perpendicular to the length direction at least partially fall between the first feeding port and the second feeding port, a first signal can be transmitted between the first feeding port and the first radiator, and a second signal can be transmitted between the second feeding port and the second radiator, and the first signal and the second signal do not interfere with each other; a display screen; a shell covering a periphery of the display screen, the shell and the display screen enclosing a cavity, the antenna being arranged in the cavity and located within a range in which the shell covers the periphery of the display screen.

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