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Reconfigurable holographic impedance modulation surface antenna based on laminated structure and liquid crystal

A layered structure and liquid crystal technology, applied in the direction of antenna, slot antenna, radiation element structure, etc., can solve the problem of lack of adjustability in the holographic antenna pattern, achieve high gain and improve radiation efficiency

Active Publication Date: 2021-07-09
XIHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a reconfigurable holographic impedance modulation surface antenna based on laminated structure and liquid crystal, which solves the problem of lack of adjustability in the pattern of traditional holographic antennas

Method used

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  • Reconfigurable holographic impedance modulation surface antenna based on laminated structure and liquid crystal
  • Reconfigurable holographic impedance modulation surface antenna based on laminated structure and liquid crystal
  • Reconfigurable holographic impedance modulation surface antenna based on laminated structure and liquid crystal

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Embodiment Construction

[0026] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0027] Such as figure 1 and figure 2 As shown, the reconfigurable holographic impedance modulation surface antenna based on laminated structure and liquid crystal includes a dielectric frame 6, and a metal base plate 7 is arranged under the dielectric frame 6; A liquid crystal layer 4 is provided, and a dielectric plate 2 is provided on the liquid crystal layer 4;

[0028] Both the upper surface and the lower surface of ...

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Abstract

The invention discloses a reconfigurable holographic impedance modulation surface antenna based on a laminated structure and liquid crystal. The antenna comprises a dielectric frame, and a metal bottom plate is arranged below the dielectric frame; a groove body penetrating through the upper and lower surfaces of the medium frame is formed in the medium frame, a liquid crystal layer is arranged in the groove body, and a dielectric plate is arranged on the liquid crystal layer; and the upper surface and the lower surface of the dielectric plate are each provided with eight laminated structure periodic slot units which are sequentially arranged, and each laminated structure periodic slot unit comprises four metal through holes penetrating through the dielectric plate, seven metal patches and two longitudinal metal strips located on the bottom face of the dielectric plate. According to the invention, a surface impedance extraction method is adopted to obtain the laminated structure periodic slot units, then the liquid crystal layer is loaded in the dielectric frame, and voltage bias regulation and control are carried out on the liquid crystal layer, so that the laminated structure reconfigurable periodic slot units are formed, and the reconfiguration of the directional diagram is realized.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a reconfigurable holographic impedance modulation surface antenna based on laminated structures and liquid crystals. Background technique [0002] Antenna is an important part of wireless communication, perception, detection and identification systems. It mainly realizes the transmission and reception of electromagnetic waves. Its working performance and physical characteristics affect the performance of the entire system. In recent years, holographic technology has been widely used in the field of microwave antennas, and new antennas such as holographic metasurface antennas and holographic impedance modulation antennas have emerged. The holographic antenna has the characteristics of low profile, low profile, and small volume, so it can be installed on the surface of various objects very concealedly to achieve a coplanar structure. Moreover, the holographic antenna has a simple structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q25/00H01Q3/24H01Q13/10H01Q1/36
CPCH01Q25/00H01Q3/24H01Q13/106H01Q1/36
Inventor 黄永茂吴志斌江婉周婷郭奕王未来
Owner XIHUA UNIV
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