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Broadband metasurface antenna based on differential dielectric resonator feeding

A dielectric resonator, metasurface technology, applied in resonant antennas, electrical short antennas, antennas, etc., can solve problems such as difficulty in adding and expanding bandwidth

Active Publication Date: 2020-10-20
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, the high-order mode of the metasurface is difficult to join in-band to expand the bandwidth due to the distortion of the pattern

Method used

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  • Broadband metasurface antenna based on differential dielectric resonator feeding
  • Broadband metasurface antenna based on differential dielectric resonator feeding
  • Broadband metasurface antenna based on differential dielectric resonator feeding

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail:

[0032] refer to figure 1 , the present invention includes a first rectangular dielectric plate 1 and a second rectangular dielectric plate 2 stacked up and down, and a rectangular dielectric resonator 3; the plane Cartesian coordinate system XOY has its origin on the center normal of the first dielectric plate 1, Both the first rectangular dielectric board 1 and the second rectangular dielectric board 2 are square, with side length W=52 mm, the thickness of the first dielectric board 1 is H=4mm, and the thickness of the second dielectric board 2 is T= 0.5mm, all adopt F4B material, the relative dielectric constant is 3.5, and the loss tangent value is 0.001; on the second rectangular dielectric plate 2, at the position of the feeding probe 6, two diameters of 0.6mm are reserved The via hole is used to insert the feed probe 6. Described recta...

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Abstract

The invention provides a broadband metasurface antenna based on differential dielectric resonator feeding. The broadband metasurface antenna comprises a first rectangular dielectric plate, a second rectangular dielectric plate and a rectangular dielectric resonator, wherein the first rectangular dielectric plate and the second rectangular dielectric plate are stacked up and down. 4 * 3 periodically arranged rectangular metal patches are printed on the upper surface of the first dielectric plate, and the two rectangular metal patches in the center are removed to form a metasurface radiator; linear gaps are etched in the rectangular metal patches at the four corners of the metasurface radiator, and open gaps are etched in the rectangular metal patches on the side wings of the long sides of arectangular through hole. A metal floor is printed on the upper surface of the second rectangular dielectric plate; a metal strip is printed on the side face of the rectangular dielectric resonator,and a feed probe is arranged nearby the rectangular dielectric resonator. The feed probe is connected with the rectangular dielectric resonator through the metal strip and carries out differential feeding. According to the invention, on the basis of ensuring that the metasurface antenna has small backward radiation, the bandwidth of the antenna is expanded.

Description

technical field [0001] The invention belongs to the technical field of antennas, and relates to a differential broadband metasurface antenna, which can be directly integrated into a differential circuit and used in a broadband wireless communication system. Background technique [0002] Compared with traditional single-port antennas, differential antennas have excellent characteristics of anti-noise and anti-common-mode interference; secondly, since differential antennas can be directly integrated with differential circuits, baluns are avoided, thereby reducing the overall volume of the device and improving the RF front-end integration, reduce transmission loss and improve efficiency. In addition, differential feeding can also reduce the cross-polarization level of the antenna and ensure the symmetry of the antenna pattern. Therefore, research on differential antennas has become a hot topic. However, since the differential antenna needs to feed the two signals of the dual ...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/38H01Q1/48H01Q1/50H01Q9/04H01Q15/00
CPCH01Q1/36H01Q1/38H01Q1/48H01Q1/50H01Q9/0485H01Q15/0086
Inventor 翁子彬邱永晖张立焦永昌赵钢刘建峰
Owner XIDIAN UNIV
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