US-12620723-B2 - Dual-polarized magnetoelectric dipole antenna and electronic device

Abstract

A dual-polarized magnetoelectric dipole antenna, including a reflection plate, electric and magnetic dipoles, where the electric dipole includes four first electrodes; the magnetic dipole includes four second electrodes; the second electrodes are in one-to-one correspondence with the first electrodes, and each second electrode is connected between a corresponding first electrode and the reflection plate; each first electrode includes first and second sides connected to each other; the first side of the first electrode is adjacent to the first side of one adjacent first electrode, and the second side of the first electrode is adjacent to the second side of other one adjacent first electrode; each second electrode includes two sub-electrodes connected to the first and second sides of a corresponding first electrode, respectively; the sub-electrode has a slit opening therein, and an extending direction of the slit opening is parallel to a plane where the reflection plate is located.

Inventors

• Dongdong Zhang
• Shihua Wang
• Youjian HU
• Yali Wang
• Feng Qu
• Biqi LI

Assignees

• Beijing Boe Technology Development Co., Ltd.
• BOE TECHNOLOGY GROUP CO., LTD.

Dates

Publication Date

20260505

Application Date

20221226

Claims (19)

1. 1 . A dual-polarized magnetoelectric dipole antenna, comprising a reflection plate, an electric dipole parallel to the reflection plate, and a magnetic dipole perpendicular to and electrically connected to the reflection plate, wherein the electric dipole comprises four first electrodes; the magnetic dipole comprises four second electrodes; the four second electrodes and the four first electrodes are in one-to-one correspondence, and each of the four second electrodes is connected between the first electrode corresponding to the second electrode and the reflection plate; each of the four first electrodes comprises a first side and a second side connected to each other; for any one of the four first electrodes, the first side of the first electrode is adjacent to the first side of one of the other three first electrodes adjacent to the first electrode, and the second side of the first electrode is adjacent to the second side of other one of the other three first electrodes adjacent to the first electrode; and each of the four second electrodes comprises two sub-electrodes, and the two sub-electrodes are connected to the first side and the second side of the first electrode corresponding to the second electrode, respectively; for any one of the two sub-electrodes, a slit opening is in the sub-electrode, and an extending direction of the slit opening is parallel to a plane where the reflection plate is located, wherein each of the two sub-electrodes comprises a first region and a second region arranged side by side along the extending direction of the slit opening in the sub-electrode, and located on two opposite ends of the sub-electrode in a direction parallel to the reflection plate; the slit opening comprises a first slit opening and a second slit opening; the first slit opening is in the first region, the second slit opening is in the second region, and the first slit opening and the second slit opening are alternately arranged and staggered with each other in a direction perpendicular to the reflection plate.
2. 2 . The dual-polarized magnetoelectric dipole antenna according to claim 1 , wherein third sides of the two sub-electrodes of each of the four second electrodes are connected to each other, and each of the two sub-electrodes further comprises a fourth side opposite to the third side; and the first slit opening in the sub-electrode penetrates through the fourth side.
3. 3 . The dual-polarized magnetoelectric dipole antenna according to claim 1 , wherein in each of the two sub-electrodes, numbers of the first slit opening and the second slit opening are equal to each other.
4. 4 . The dual-polarized magnetoelectric dipole antenna according to claim 1 , wherein in each of the two sub-electrodes, a number of the first slit opening is different by one from a number of second slit opening.
5. 5 . The dual-polarized magnetoelectric dipole antenna according to claim 1 , wherein in each of the two sub-electrodes, spacings between any two adjacent ones of a plurality of first slit openings are equal to each other, and spacings between any two adjacent ones of a plurality of second slit openings are equal to each other.
6. 6 . The dual-polarized magnetoelectric dipole antenna according to claim 1 , wherein in each of the two sub-electrodes, widths and/or lengths of respective first slit openings are equal to each other, and widths and/or lengths of respective second slit openings are equal to each other.
7. 7 . The dual-polarized magnetoelectric dipole antenna according to claim 1 , wherein each of the two sub-electrodes comprises two slit openings, and orthographic projections of the two slit openings on the reflection plate partially overlap each other.
8. 8 . The dual-polarized magnetoelectric dipole antenna according to claim 1 , wherein each of the two sub-electrodes comprises a first region and a second region arranged side by side along the extending direction of the slit opening in the sub-electrode; the slit openings comprise a first slit opening, a second slit opening, and a third slit opening; the first slit opening is in the first region, the second slit opening is in the second region, and the first slit opening and the second slit opening are arranged in one-to-one correspondence; one end of the third slit opening is in the first region and is arranged alternately with the first slit opening, and the other end of the third slit opening is in the second region and is arranged alternately with the second slit opening.
9. 9 . The dual-polarized magnetoelectric dipole antenna according to claim 8 , wherein orthographic projections of both ends of the third slit opening on the reflection plate overlap orthographic projections of the first slit opening and the second slit opening on the reflection plate, respectively.
10. 10 . The dual-polarized magnetoelectric dipole antenna according to claim 8 , wherein in each of the two sub-electrodes, spacings between any two adjacent ones of a plurality of first slit openings are equal to each other, spacings between any two adjacent ones of a plurality of second slit openings are equal to each other, and spacings between any two adjacent ones of a plurality of third slit openings are equal to each other.
11. 11 . The dual-polarized magnetoelectric dipole antenna according to claim 8 , wherein in each of the two sub-electrodes, widths and/or lengths of respective first slit openings are equal to each other, widths and/or lengths of respective second slit openings are equal to each other, and widths and/or lengths of respective third slit openings are equal to each other.
12. 12 . The dual-polarized magnetoelectric dipole antenna according to claim 1 , wherein each of the four first electrodes has a hollowed-out pattern therein.
13. 13 . The dual-polarized magnetoelectric dipole antenna according to claim 12 , wherein a center of the hollowed-out pattern in each of the four first electrodes coincides with a center of an outline of the first electrode.
14. 14 . The dual-polarized magnetoelectric dipole antenna according to claim 1 , further comprising a first feed line and a second feed line, wherein the four second electrodes of the magnetic dipole define a cross-shaped accommodation region, and the first feed line and the second feed line cross each other in the cross-shaped accommodation region.
15. 15 . The dual-polarized magnetoelectric dipole antenna according to claim 14 , wherein a spacing between the first feed line and the second feed line is in a range of 0.8 mm to 1.2 mm.
16. 16 . The dual-polarized magnetoelectric dipole antenna according to claim 14 , wherein the first feed line and the second feed line are both T-shaped feed lines.
17. 17 . The dual-polarized magnetoelectric dipole antenna according to claim 14 , further comprising a first radio frequency connector connected to the first feed line, and a second radio frequency connector connected to the second feed line.
18. 18 . The dual-polarized magnetoelectric dipole antenna according to claim 1 , wherein the reflection plate is made of metal.
19. 19 . An electronic device, comprising the dual-polarized magnetoelectric dipole antenna according to claim 1 .

Description

TECHNICAL FIELD The present disclosure relates to the field of communication technology, and particularly to a dual-polarized magnetoelectric dipole antenna and an electronic device. BACKGROUND A magnetoelectric dipole antenna designed based on the complementary principle has advantages of wide frequency band, stable in-band gain, low back radiation, low cross polarization, almost same patterns in an E plane and an H plane, and the like, so that the magnetoelectric dipole antenna has wide application prospect in a wireless communication system, but the application range thereof is limited by disadvantages of higher profile, larger volume, three-dimensional feed structure, and the like. Therefore, a miniaturized design of the magnetoelectric dipole antenna is required. The miniaturized design of the antenna includes miniaturization of the lateral and longitudinal dimensions. The miniaturization of the lateral dimensions mainly refers to miniaturization of a radiating element, while the miniaturization of the longitudinal dimensions corresponds to reduction of a profile of the antenna. For a magnetoelectric dipole antenna, the miniaturization of the lateral dimension mainly refers to miniaturization of a half-wavelength electric dipole in the horizontal direction, and the miniaturization of the longitudinal dimension refers to miniaturization of a quarter-wavelength magnetic dipole in a vertical direction. At present, researches on the miniaturization of the electric dipole are relatively few, mainly including changing a shape of the electric dipole, bending the shape of the electric dipole, and the like; while researches on the miniaturization of the magnetic dipole are relatively more, and the methods for reducing the profile of the magnetic dipole mainly include folding, inclining or bending a vertical metal wall, forming a slot in a middle floor of the vertical wall, loading a dielectric, and the like. These methods cause that the complexity of the three-dimensional structure of the antenna is increased to different degrees, which is not beneficial to the large-scale production of the antenna. Therefore, a miniaturized high-gain dual-polarized magnetoelectric dipole antenna, which is simple in structure and easy to process, is required to be designed, to better meet the requirements of application of a modern wireless communication system. SUMMARY The present disclosure is directed to at least one of the problems in the related art, and provides a dual-polarized magnetoelectric dipole antenna and an electronic device. In a first aspect, an embodiment of the present disclosure provides a dual-polarized magnetoelectric dipole antenna, including a reflection plate, an electric dipole parallel to the reflection plate, and a magnetic dipole perpendicular to and electrically connected to the reflection plate, where the electric dipole includes four first electrodes; the magnetic dipole includes four second electrodes; the four second electrodes and the four first electrodes are in one-to-one correspondence, and each of the four second electrodes is connected between the first electrode corresponding to the second electrode and the reflection plate;each of the four first electrodes includes a first side and a second side connected to each other; for any one of the four first electrodes, the first side of the first electrode is adjacent to the first side of one of the other three first electrodes adjacent to the first electrode, and the second side of the first electrode is adjacent to the second side of other one of the other three first electrodes adjacent to the first electrode; andeach of the four second electrodes includes two sub-electrodes, and the two sub-electrodes are connected to the first side and the second side of the first electrode corresponding to the second electrode, respectively; for any one of the two sub-electrodes, a slit opening is in the sub-electrode, and an extending direction of the slit opening is parallel to a plane where the reflection plate is located. Each of the two sub-electrodes includes a first region and a second region arranged side by side along the extending direction of the slit opening in the sub-electrode; the slit opening includes a first slit opening and a second slit opening; the first slit opening is in the first region, the second slit opening is in the second region, and the first slit opening and the second slit opening are alternately arranged. Third sides of the two sub-electrodes of each of the four second electrodes are connected to each other, and each of the two sub-electrodes further includes a fourth side opposite to the third side; and the first slit opening in the sub-electrode penetrates through the fourth side. In each of the two sub-electrodes, numbers of the first slit opening and the second slit opening are equal to each other. In each of the two sub-electrodes, a number of the first slit opening is different by one from a number of second slit ope