Dual-polarized double-wide-surface antenna unit and antenna array

A dual-polarized antenna and wide-band technology, applied in the field of antennas, can solve the problems of increasing the size, increasing the difficulty of making antennas, and reducing antenna gain.

Inactive Publication Date: 2019-09-27
SHENZHEN SOUTH STAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common method of increasing the radiation surface can only widen the width of a single surface, and operations such as bending and enlarging the radiation patch or reflective floor are required, which increases the difficulty of antenna production; in addition, the energy of a wide-coverage antenna is distributed in a wider range , will inevitably lead to a reduction in antenna gain. It is a difficult point to ensure that the antenna gain meets the requirements while achieving wide radiation coverage.

Method used

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  • Dual-polarized double-wide-surface antenna unit and antenna array
  • Dual-polarized double-wide-surface antenna unit and antenna array
  • Dual-polarized double-wide-surface antenna unit and antenna array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1-4 As shown, a double-wide-plane dual-polarized broadband antenna unit includes a dielectric board 1, four magnetoelectric dipoles 2, a feed structure, and twelve copper pillars 3, and both sides of the dielectric board are coated with 0.05 mm copper layer, the upper surface is a reflective ground, four magnetoelectric dipoles 2 and twelve copper columns 3 are all arranged on the reflective ground of the dielectric board 1, and the feeding structure is used to supply power to the magnetoelectric dipoles 2 , each of the magnetoelectric dipoles 2 has the same structure, the upper part is a quarter-circle sector 21, the lower part is supported by an L-shaped structure with a 90° angle, and there is an annular hollow structure 23 in the middle of the fan-shaped horizontal plane, and the vertical plane is also The hollow structure 22 has a gap between each magnetoelectric dipole 2, and the gap is in the shape of a cross. The cross shape is used to place the ...

Embodiment 2

[0040] In order to meet 5G multi-scenario applications, such as Figure 5 , 6, 12, on the basis of Embodiment 1, a dual-polarized high-gain antenna array is provided, a 2×2 array consisting of four antenna elements, the magnetoelectric dipole and copper pillars of the unit structure and the implementation The antenna units in Example 1 are the same, and the adjacent antenna units are arranged at a distance of 48mm (0.65λ). At the same time, different feed networks are used, and the same antenna unit is used to form a high In the gain dual-polarized array antenna, the 3dB coupler is arranged between a one-to-four feed network and two feed ports, and a copper column is shared between adjacent antenna elements. By adjusting the position and height of the cylinder arrangement, the influence of the antenna surface wave can be effectively reduced, the isolation degree can be improved, and the phase difference can be realized through the 3dB coupler. When the two ports are loaded w...

Embodiment 3

[0042] Such as Figure 7 As shown, on the basis of Embodiment 1, a dual-polarized wide-angle wave-speed scanning antenna array is provided. By using a power divider combined with a phase shifter to control the wide-coverage antenna unit, it is combined into a 1×8 array, and its unit structure The magnetoelectric dipole and copper column are the same as the antenna unit of embodiment 1, and the feed network is not used at the same time. The antenna array feed adopts an external power divider and a phase shifter, and the power divider is connected to the two phase shifters respectively. Shifter connection, use computer and FPGA microcontroller to control the phase difference of each unit, so that there is a 165° phase difference between each adjacent unit, and an antenna array with a wide scanning angle can be obtained to realize beam scanning, and the maximum scanning angle can reach -65 ° to +65°.

[0043] The positions of the copper pillars are adjusted so that adjacent ante...

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PUM

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Abstract

The invention provides a dual-polarized double-wide-surface antenna unit comprising a dielectric plate, four magnetic electric dipoles, a feed network and twelve copper columns, wherein the upper surface of the dielectric plate is a reflective ground; the four magnetic electric dipoles and the twelve copper columns are all disposed on the reflective ground of the dielectric plate; the upper and lower surfaces of the dielectric plate are covered with copper; the magnetic electric dipoles have the same structure; the upper portion of each magnetic electric dipole is in a quadrant shape; the lower portion of each magnetic electric dipole is supported by an L-shaped structure having an angle of 90 degrees; an annular hollowed-out structure is arranged on the center of the fan-shaped horizontal plane; the vertical plane is also a hollowed-out structure; the magnetic electric dipoles are separated by crossed slits; the crossed slits are configured to receive the feed structure for the feed network for supplying power to the magnetic electric dipoles; and the twelve copper columns are arranged in an annular shape and surround the four magnetic electric dipoles. The antenna has the characteristics of wide frequency band, double circular polarization, high cross polarization level and the like, and keeps the gain at a high stability level while achieving double wide coverage surfaces.

Description

[technical field] [0001] The invention relates to the technical field of antennas suitable for wireless broadband communication systems, in particular to a broadband dual-polarization dual-wide-plane antenna unit and an antenna array. [Background technique] [0002] In 2017, the Ministry of Industry and Information Technology released the low-frequency band standard for the fifth-generation mobile communication system (5G). Today, 5G has officially entered the actual commercial stage, and both countries and enterprises are making great efforts in this field. The 5G communication system needs to have performance characteristics such as high-speed data transmission, multi-dimensional wide coverage, and high integration. Therefore, 5G antennas have more stringent requirements than traditional antennas. First of all, 5G antennas are smaller in size, so the requirements for manufacturing accuracy are greatly improved; at the same time, dual-polarized antennas and double-wide cov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q21/00
CPCH01Q1/36H01Q1/38H01Q1/50H01Q21/00
Inventor 冯波涛李良英
Owner SHENZHEN SOUTH STAR TECH
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