A dual-port microstrip patch antenna and electronic device

Abstract

The embodiment of the present application relates to the technical field of antenna, and discloses a dual-port microstrip patch antenna and electronic equipment.The dual-port microstrip patch antenna comprises a dielectric substrate, a first dipole antenna and a second dipole antenna; the first dipole antenna and the second dipole antenna are both folded into the same antenna with multiple folding position shapes; the first dipole antenna and the second dipole antenna are both placed on the surface of the dielectric substrate; the first dipole antenna is used to generate a first induced current at a first feeding point in the case that the second dipole antenna is turned on, and the second dipole antenna is used to generate a second induced current at a second feeding point in the case that the first dipole antenna is turned on; wherein the multiple folding positions of the first dipole antenna and the second dipole antenna are used to disperse the first induced current at the first feeding point or the second induced current at the second feeding point, so as to improve the isolation of the antenna port and the network capacity of the antenna system.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of antenna technology, and in particular to a dual-port microstrip patch antenna and electronic equipment. Background Art

[0002] A microstrip antenna typically consists of a dielectric substrate, a radiator, and a ground plane, fed by a microstrip line or coaxial cable. The ground plane is a metal layer attached to one surface of the dielectric substrate, while the radiator is attached to the other surface of the dielectric substrate. The metal layer is etched into a specific shape, and the shape of the radiator can be varied to meet specific requirements. Microstrip antennas are widely used in mobile communications, satellite communications, and global positioning systems due to their low profile, small size, light weight, ease of manufacture, and mass production.

[0003] However, the multi-port microstrip patch antenna has low isolation, which will cause the antenna's directivity pattern to deteriorate, thereby reducing the network capacity of the entire system. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a dual-port microstrip patch antenna, which can improve the isolation of antenna ports and thus improve the network capacity of the antenna system.

[0005] To solve the above technical problems, an embodiment of the present invention provides a dual-port microstrip patch antenna, comprising: a dielectric substrate, a first dipole antenna, and a second dipole antenna; the first dipole antenna and the second dipole antenna are both bent into antennas having the same shape and multiple bending positions; the first dipole antenna and the second dipole antenna are both placed on the surface of the dielectric substrate; the first dipole antenna is used to generate a first induced current at a first feeding point when the second dipole antenna is turned on, and the second dipole antenna is used to generate a second induced current at a second feeding point when the first dipole antenna is turned on; wherein the multiple bending positions of the first dipole antenna and the second dipole antenna are used to disperse the first induced current at the first feeding point or the second induced current at the second feeding point.

[0006] In order to solve the above technical problems, an embodiment of the present invention further provides an electronic device, comprising the above dual-port microstrip patch antenna and a device body.

[0007] Compared with the prior art, the embodiment of the present invention provides a dual-port microstrip patch antenna comprising: a dielectric substrate, a first dipole antenna and a second dipole antenna; the first dipole antenna and the second dipole antenna are both bent into antennas having the same shape and multiple bending positions; the first dipole antenna and the second dipole antenna are both placed on the surface of the dielectric substrate; the first dipole antenna is configured to generate a first induced current at a first feeding point when the second dipole antenna is turned on, and the second dipole antenna is configured to generate a second induced current at a second feeding point when the first dipole antenna is turned on; wherein the multiple bending positions of the first dipole antenna and the second dipole antenna are configured to disperse the first induced current at the first feeding point or the second induced current at the second feeding point. By placing two identical dipole antennas with multiple bending positions on the surface of a dielectric substrate, a dual-port dipole antenna is formed. The dipole antenna can replace the radiator on the dielectric substrate surface of the original microstrip patch antenna. Since the two dipole antennas have multiple bending positions, even if the feeding point of one of the dipole antennas is excited by current, causing the feeding point of the other dipole antenna to generate an induced current due to the mutual coupling of the antennas, the multiple bending positions of the two dipole antennas can also disperse the induced current at the feeding point of any dipole antenna, thereby improving the isolation of the antenna port and thus improving the network capacity of the antenna system. In addition, since the embodiment of the present invention only bends the dipole antenna into an antenna with multiple bending positions, the feeding point and length of the antenna will not change, and therefore the resonant mode of the dipole antenna will not change, thereby improving the stability of the antenna system.

[0008] In addition, the first dipole antenna and the second dipole antenna are both placed on the first surface or the second surface of the dielectric substrate, and the first dipole antenna and the second dipole antenna are collinear; wherein the first surface and the second surface are parallel to each other. By placing the first dipole antenna and the second dipole antenna on one surface of the dielectric substrate, the bending position of the dipole antenna can further disperse the induced current at the feeding point of the dipole antenna, thereby further improving the isolation of the antenna.

[0009] In addition, the first dipole antenna and the second dipole antenna are both bent into a C-shape. In the present application, by bending both dipole antennas into a specific shape, namely a C-shaped dipole antenna, the shape is simple, and the bent dipole antenna has three bending positions, thereby improving the isolation of the antenna and the operability of the antenna.

[0010] In addition, the first dipole antenna is placed on the first surface of the dielectric substrate, and the second dipole antenna is placed on the second surface of the dielectric substrate; wherein the first surface and the second surface are parallel to each other. Another embodiment of the present application is that the first dipole antenna and the second dipole antenna can also be placed on two surfaces of the dielectric substrate, and placing the first dipole antenna and the second dipole antenna on two surfaces of the dielectric substrate can reduce the size of the antenna, which is conducive to miniaturization of the antenna.

[0011] In addition, the antenna shape of the first dipole antenna is the antenna shape of a regular C-shaped dipole antenna rotated 180° counterclockwise, the antenna shape of the second dipole antenna is axially symmetric to the antenna shape of the regular C-shaped dipole antenna, and the mapped position of the first position of the first dipole antenna on the dielectric substrate coincides with the mapped position of the first position of the second dipole antenna on the dielectric substrate; the regular C-shaped dipole antenna is a C-shaped dipole antenna placed in the forward direction; and the inductive open loop formed by the first dipole antenna and the second dipole antenna is configured to generate a third induced current when the first dipole antenna or the second dipole antenna is turned on. In the present application, the antenna shape of the first dipole antenna is the antenna shape of the regular C-shaped dipole antenna rotated 180° counterclockwise, the antenna shape of the second dipole antenna is axially symmetric to the antenna shape of the regular C-shaped dipole antenna, and the mapped position of the first position of the first dipole antenna on the dielectric substrate coincides with the mapped position of the first position of the second dipole antenna on the dielectric substrate. Therefore, the first dipole antenna and the second dipole antenna form an inductive open ring with inductive characteristics, which can generate a third induced current when the first dipole antenna or the second dipole antenna is turned on, so as to offset the first induced current or the second induced current.

[0012] In addition, the dual-port microstrip patch antenna further includes: a first parasitic patch and a second parasitic patch; the first parasitic patch is located at the second position of the first dipole antenna, and the second parasitic patch is located at the second position of the second dipole antenna. In the present application, by providing the first and second parasitic patches, the first parasitic patch can couple with the second dipole antenna to generate current, and the second parasitic patch can couple with the first dipole antenna to generate current.

[0013] Furthermore, the first parasitic patch and the second dipole antenna are configured to generate a fourth induced current when the second dipole antenna is turned on; and the second parasitic patch and the first dipole antenna are configured to generate a fifth induced current when the first dipole antenna is turned on. The fourth and fifth induced currents in this application are configured to cancel out the other induced currents.

[0014] In addition, the first induced current, the third induced current and the fourth induced current meet the following conditions, or the second induced current, the third induced current and the fifth induced current meet the following conditions: βI c +K L I c +K C I c =0; wherein, the I c represents the current at the second feeding point, the βI c represents the first induced current, the K L I c represents the third induced current, the K C I c represents the fourth induced current; or, the I c represents the current at the first feeding point, the βI c represents the second induced current, the K L I c represents the third induced current, the K C I c In the present application, by adjusting the magnitude of each induced current, all the induced currents generated finally can cancel each other out, thereby maximizing the isolation of the antenna.

[0015] In addition, the dual-port microstrip patch antenna is fed by a quarter balun feed method. In this application, the quarter balun feed method is used to feed the antenna, which can replace the original coaxial line feeding method. Therefore, a metal plate is not required to be placed under the dielectric substrate, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0017] Figure 1 is a structural diagram of a dipole antenna provided according to an embodiment of the present invention;

[0018] Figure 2 is a structural diagram of a dual-port dipole antenna provided according to an embodiment of the present invention;

[0019] Figure 3 is a structural diagram of a dual-port C-shaped dipole antenna provided according to an embodiment of the present invention;

[0020] Figure 41 is a schematic diagram of the position of a dual-port C-shaped dipole antenna provided according to an embodiment of the present invention;

[0021] Figure 5 is a schematic diagram of the position of a parasitic patch provided according to an embodiment of the present invention;

[0022] Figure 6 1 is a working principle diagram of a dual-port microstrip patch antenna provided according to an embodiment of the present invention;

[0023] Figure 7 is a structural diagram of an electronic device provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, each embodiment of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be understood by those skilled in the art that in each embodiment of the present invention, many technical details are provided to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can be implemented. The division of the following embodiments is for convenience of description and should not constitute any limitation on the specific implementation of the present invention. The various embodiments can be combined with each other and referenced to each other under the premise that there is no contradiction.

[0025] The terms "first" and "second" in the embodiments of the present application are only used for descriptive purposes and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a system, product or device comprising a series of components or units is not limited to the listed components or units, but may optionally also include components or units that are not listed, or may optionally also include other components or units that are inherent to these products or devices. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] One embodiment of the present application relates to a dual-port microstrip patch antenna. The dual-port microstrip patch antenna of the present embodiment comprises a dielectric substrate, a first dipole antenna and a second dipole antenna; the first dipole antenna and the second dipole antenna are both folded into the same antenna shape with multiple folding positions; the first dipole antenna and the second dipole antenna are both placed on the surface of the dielectric substrate; the first dipole antenna is used to generate a first induced current at a first feeding point when the second dipole antenna is turned on, and the second dipole antenna is used to generate a second induced current at a second feeding point when the first dipole antenna is turned on; wherein the multiple folding positions of the first dipole antenna and the second dipole antenna are used to disperse the first induced current at the first feeding point or the second induced current at the second feeding point, so as to improve the isolation of the antenna port and thus improve the network capacity of the antenna system.

[0027] The implementation details of the dual-port microstrip patch antenna of the present embodiment will be described in detail below. The following implementation details are provided for the convenience of understanding and are not essential for implementing the present solution.

[0028] The dual-port microstrip patch antenna of the present embodiment comprises a dielectric substrate, a first dipole antenna and a second dipole antenna; wherein the first dipole antenna and the second dipole antenna are both folded into the same antenna shape with multiple folding positions; the first dipole antenna and the second dipole antenna are both placed on the surface of the dielectric substrate.

[0029] Specifically, in the present embodiment, a dual-port microstrip patch antenna is designed by using a conventional dipole antenna. The structure of the dipole antenna is shown in Figure 1 , where the shaded part is the feeding point of the dipole antenna. First, two conventional dipole antennas are folded to obtain a dual-port dipole antenna as shown in Figure 2 , which comprises a first dipole antenna and a second dipole antenna. The left one is the first dipole antenna and the right one is the second dipole antenna. The first dipole antenna and the second dipole antenna are folded into the same antenna shape with multiple folding positions, and the first dipole antenna and the second dipole antenna are placed on the surface of the dielectric substrate to obtain the dual-port microstrip patch antenna. Since the structure and working principle of the dipole antenna are relatively simple and widely used in engineering applications, the present embodiment is based on the dipole antenna to design the dual-port microstrip patch antenna of the present embodiment.

[0030] The first dipole antenna is configured to generate a first induced current at a first feeding point when the second dipole antenna is turned on, and the second dipole antenna is configured to generate a second induced current at a second feeding point when the first dipole antenna is turned on, and the multiple bending positions of the first dipole antenna and the second dipole antenna are configured to disperse the first induced current at the first feeding point or the second induced current at the second feeding point. For example, when the feeding point of the first dipole antenna is excited by current, that is, the first dipole antenna is in a conducting state, resulting in an induced current being generated at the feeding point of the second dipole antenna due to the mutual coupling between the first dipole antenna and the second dipole antenna, the multiple bending positions of the first dipole antenna and the second dipole antenna will disperse the induced current generated at the feeding point of the second dipole antenna, thereby reducing the current at the feeding point of the second dipole antenna and improving the isolation of the antenna.

[0031] In one example, the first dipole antenna and the second dipole antenna are both bent into a C shape. That is, in this embodiment, the first dipole antenna and the second dipole antenna are bent into a C shape. Figure 3 The C-shaped dipole antenna shown is used to obtain a dual-port C-shaped dipole antenna, wherein the left one is a first dipole antenna, and there is a first feeding point on the first dipole antenna, and the right one is a second dipole antenna, and there is a second feeding point on the second dipole antenna. In the present application, both dipole antennas are bent into a specific shape, namely a C-shaped dipole antenna, which has a simple shape and has three bending positions after bending. While improving the isolation of the antenna, the operability of the antenna is improved. In addition, since the present application only bends the dipole antenna into a C-shaped antenna, the feeding point and length of the antenna will not change. Therefore, the original resonant mode of the dipole antenna does not change, so as to improve the stability of the antenna system.

[0032] The first dipole antenna and the second dipole antenna can be as follows Figure 3 As shown, it is placed on the surface of the dielectric substrate in an axisymmetric manner.

[0033] In one example, the feeding method of the dual-port microstrip patch antenna of this embodiment is quarter balun feeding. In this application, the quarter balun feeding method is adopted to replace the original coaxial line feeding method, so there is no need to place a metal plate under the dielectric substrate, thereby reducing costs.

[0034] In this embodiment, a dual-port microstrip patch antenna includes: a dielectric substrate, a first dipole antenna, and a second dipole antenna; the first dipole antenna and the second dipole antenna are both bent into antennas having the same shape and multiple bending positions; the first dipole antenna and the second dipole antenna are both placed on the surface of the dielectric substrate; the first dipole antenna is used to generate a first induced current at a first feeding point when the second dipole antenna is turned on, and the second dipole antenna is used to generate a second induced current at a second feeding point when the first dipole antenna is turned on; wherein the multiple bending positions of the first dipole antenna and the second dipole antenna are used to disperse the first induced current at the first feeding point or the second induced current at the second feeding point. By placing two identical dipole antennas with multiple bending positions on the surface of a dielectric substrate, a dual-port dipole antenna is formed. The dipole antenna can replace the radiator on the dielectric substrate surface of the original microstrip patch antenna. Since the two dipole antennas have multiple bending positions, even if the feeding point of one of the dipole antennas is excited by current, causing the feeding point of the other dipole antenna to generate an induced current due to the mutual coupling of the antennas, the multiple bending positions of the two dipole antennas can also disperse the induced current at the feeding point of any dipole antenna, thereby improving the isolation of the antenna port and thus improving the network capacity of the antenna system. In addition, since the embodiment of the present invention only bends the dipole antenna into an antenna with multiple bending positions, the feeding point and length of the antenna will not change, and therefore the resonant mode of the dipole antenna will not change, thereby improving the stability of the antenna system.

[0035] In one embodiment, the first dipole antenna and the second dipole antenna are both placed on the first surface or the second surface of the dielectric substrate, and the first dipole antenna and the second dipole antenna are collinear. The first surface and the second surface are parallel to each other. The first surface may refer to the upper surface of the dielectric substrate, and the second surface may refer to the lower surface of the dielectric substrate. In this embodiment, the first dipole antenna and the second dipole antenna are placed on the upper surface of the dielectric substrate, or the first dipole antenna and the second dipole antenna are placed on the lower surface of the dielectric substrate.

[0036] In this embodiment, by placing the first dipole antenna and the second dipole antenna on one surface of the dielectric substrate, the bending position of the dipole antenna can disperse the induced current at the feeding point of the dipole antenna to a greater extent, thereby further improving the isolation of the antenna.

[0037] In one embodiment, the first dipole antenna is placed on a first surface of the dielectric substrate, and the second dipole antenna is placed on a second surface of the dielectric substrate, wherein the first surface and the second surface are parallel to each other, the first surface may refer to an upper surface of the dielectric substrate, and the second surface may refer to a lower surface of the dielectric substrate.

[0038] It should be noted that the first and second dipole antennas in this embodiment are both C-shaped dipole antennas. Specifically, the first dipole antenna in this embodiment is placed on the first surface of the dielectric substrate, and the second dipole antenna is placed on the second surface of the dielectric substrate. By placing the first and second dipole antennas on the two surfaces of the dielectric substrate, the present application reduces the size of the antennas, facilitating antenna miniaturization.

[0039] In one example, the antenna shape of the first dipole antenna is the antenna shape of a normal C-shaped dipole antenna rotated 180° counterclockwise, the antenna shape of the second dipole antenna is axially symmetric to the antenna shape of the normal C-shaped dipole antenna, and the mapping position of the first position of the first dipole antenna on the dielectric substrate coincides with the mapping position of the first position of the second dipole antenna on the dielectric substrate. The inductive open loop formed by the first dipole antenna and the second dipole antenna is used to generate a third induced current when the first dipole antenna or the second dipole antenna is turned on. Among them, the normal C-shaped dipole antenna is a C-shaped dipole antenna placed forward, see Figure 3 In the present application, the first dipole antenna and the second dipole antenna can generate a third induced current and a fourth induced current to offset the first induced current and the second induced current.

[0040] Specifically, the structures of the first dipole antenna and the second dipole antenna of this embodiment are shown in FIG. Figure 4 In this embodiment, a first dipole antenna is obtained by rotating a regular C-shaped dipole antenna counterclockwise by 180° and placed on the upper surface of a dielectric substrate. A second dipole antenna, axially symmetrical to the regular C-shaped dipole antenna, is placed on the lower surface of the dielectric substrate. The first position of the first dipole antenna is mapped onto the dielectric substrate so that the first position of the second dipole antenna coincides with the first position of the second dipole antenna. The solid line represents the first dipole antenna, and the dashed line represents the second dipole antenna. The second position of the first dipole antenna and the second position of the second dipole antenna form an inductive open loop with inductive characteristics. When either the first or second dipole antenna is conducting, the inductive open loop generates a third induced current, which is used to offset the first or second induced current.

[0041] Furthermore, the dual-port microstrip patch antenna of this embodiment further includes: a first parasitic patch and a second parasitic patch; the first parasitic patch is located at the second position of the first dipole antenna, and the second parasitic patch is located at the second position of the second dipole antenna. In this application, by providing the first and second parasitic patches, the first parasitic patch can couple with the second dipole antenna to generate current, and the second parasitic patch can couple with the first dipole antenna to generate current.

[0042] The first parasitic patch and the second parasitic patch are metal patches, and the first parasitic patch and the second parasitic patch have the same size and shape, and the shapes of the first parasitic patch and the second parasitic patch are customized, for example, the first parasitic patch and the second parasitic patch are rectangular parasitic patches.

[0043] In one example, the first parasitic patch and the second parasitic patch are rectangular parasitic patches. For specific placement, see Figure 5 The first parasitic patch and the second dipole antenna are configured to generate a fourth induced current when the second dipole antenna is conductive, and the second parasitic patch and the first dipole antenna are configured to generate a fifth induced current when the first dipole antenna is conductive. The fourth and fifth induced currents in this application are configured to offset the first, second, and third induced currents.

[0044] The first induced current, the third induced current, and the fourth induced current of this embodiment meet the following conditions, or the second induced current, the third induced current, and the fifth induced current meet the following conditions: βI c +K L I c +K C I c =0; wherein, the I c represents the current at the second feeding point, the βI c represents the first induced current, the K L I c represents the third induced current, the K C I c represents the fourth induced current; or, the I c represents the current at the first feeding point, the βI c represents the second induced current, the K L I c represents the third induced current, the K C I c In the present application, by adjusting the magnitude of each induced current, all the induced currents generated finally can cancel each other out, thereby maximizing the isolation of the antenna.

[0045] For detailed principles, see Figure 6 , when the port of antenna 1, i.e. the feeding point of the first dipole antenna, is subjected to current I c When excited, the port of antenna 2, that is, the feeding point of the second dipole antenna, generates an induced current βI due to mutual coupling. c , the inductive current K is generated at the inductive open ring L I c, the second parasitic patch and the first dipole antenna are coupled to generate an induced current K C I c ; Among them, βI c The size depends on the current I c Size, K L I c The size of the inductive open ring depends on the size of the opening, K C I c The size of the second parasitic patch depends on the size of the second parasitic patch; therefore, this embodiment can adjust the current I c The size of the open ring, and / or the size of the second parasitic patch, so that βI c +K L I c +K C I c =0, that is, the second induced current, the third induced current, and the fifth induced current cancel each other out. Similarly, when the port of antenna 2, that is, the feeding point of the second dipole antenna, is subjected to the current I c When excited, the port of antenna 1, that is, the feeding point of the first dipole antenna, generates an induced current βI due to mutual coupling. c , the inductive current K is generated at the inductive open ring L I c , the first parasitic patch and the second dipole antenna are coupled to generate an induced current K C I c ; By adjusting the current I c The size of , and / or the size of the opening of the split ring, and / or the size of the first parasitic patch, so that βI c +K L I c +K C I c =0, that is, the first induced current, the third induced current, and the fourth induced current cancel each other out.

[0046] It should be noted that the above examples in this embodiment are only for illustrative purposes and do not limit the technical solutions of the present invention.

[0047] The dual-port microstrip patch antenna of this embodiment can not only improve the isolation of the antenna, but also reduce the volume of the antenna by half, which is conducive to the miniaturization of the antenna.

[0048] Another embodiment of the present invention relates to an electronic device, such as Figure 7 As shown, it includes: the dual-port microstrip patch antenna of any of the above embodiments and a device body.

[0049] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and that in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A dual-port microstrip patch antenna, characterized in that: include: a dielectric substrate, a first dipole antenna, and a second dipole antenna; The first dipole antenna and the second dipole antenna are both bent into antennas having the same shape and multiple bending positions; The first dipole antenna and the second dipole antenna are both placed on the surface of the dielectric substrate; The first dipole antenna is configured to generate a first induced current at a first feeding point when the second dipole antenna is turned on, and the second dipole antenna is configured to generate a second induced current at a second feeding point when the first dipole antenna is turned on; The multiple bending positions of the first dipole antenna and the second dipole antenna are used to disperse the first induced current at the first feeding point or the second induced current at the second feeding point; The first dipole antenna and the second dipole antenna are both bent into a C shape; The first dipole antenna is placed on the first surface of the dielectric substrate, and the second dipole antenna is placed on the second surface of the dielectric substrate; wherein the first surface and the second surface are parallel to each other; The antenna shape of the first dipole antenna is the antenna shape of a regular C-shaped dipole antenna rotated 180° counterclockwise, the antenna shape of the second dipole antenna is axially symmetric to the antenna shape of the regular C-shaped dipole antenna, and the mapped position of the first position of the first dipole antenna on the dielectric substrate coincides with the mapped position of the first position of the second dipole antenna on the dielectric substrate; the regular C-shaped dipole antenna is a C-shaped dipole antenna placed forward; The inductive open loop formed by the first dipole antenna and the second dipole antenna is used to generate a third induced current when the first dipole antenna or the second dipole antenna is turned on.

2. The dual-port microstrip patch antenna according to claim 1, wherein: The dual-port microstrip patch antenna further includes: a first parasitic patch and a second parasitic patch; The first parasitic patch is placed at the second position of the first dipole antenna, and the second parasitic patch is placed at the second position of the second dipole antenna.

3. The dual-port microstrip patch antenna according to claim 2, characterized in that: The first parasitic patch and the second dipole antenna are configured to generate a fourth induced current when the second dipole antenna is turned on; The second parasitic patch and the first dipole antenna are configured to generate a fifth induced current when the first dipole antenna is turned on.

4. The dual-port microstrip patch antenna according to claim 3, characterized in that: The first induced current, the third induced current, and the fourth induced current satisfy the following conditions, or the second induced current, the third induced current, and the fifth induced current satisfy the following conditions: βI c +K L I c +K C I c =0 Wherein, the I c represents the current at the second feeding point, the βI c represents the first induced current, the K L I c represents the third induced current, the K C I c represents the fourth induced current; or, the I c represents the current at the first feeding point, the βI c represents the second induced current, the K L I c represents the third induced current, the K C I c represents the fifth induced current.

5. The dual-port microstrip patch antenna according to any one of claims 1 to 4, characterized in that: The feeding mode of the dual-port microstrip patch antenna is quarter balun feeding.

6. An electronic device, characterized in that: The device comprises the dual-port microstrip patch antenna according to any one of claims 1 to 5 and a device body.

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