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Scattering Pattern Reconfigurable Array Antenna Based on Liquid Metal

A liquid metal, array antenna technology, applied in the direction of a separately powered antenna array, a specific array feeding system, an antenna, etc., can solve the problem that the scattering pattern cannot be changed, and achieve the effect of increasing the practicability and simplifying the antenna structure.

Active Publication Date: 2022-03-04
XIDIAN UNIV
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Problems solved by technology

[0006] The object of the present invention is to address the deficiencies in the prior art above, and propose a reconfigurable array antenna based on liquid metal scattering patterns, which controls the working state of the antenna by changing the filling area of ​​liquid metal, and is used to solve the problems of existing antennas. The technical problem that the scattering pattern cannot be changed after processing and molding, and realize the reconfigurable scattering pattern of the array antenna

Method used

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  • Scattering Pattern Reconfigurable Array Antenna Based on Liquid Metal
  • Scattering Pattern Reconfigurable Array Antenna Based on Liquid Metal
  • Scattering Pattern Reconfigurable Array Antenna Based on Liquid Metal

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Embodiment 1

[0028] refer to figure 1 and figure 2

[0029] The present invention comprises a first dielectric substrate 1, a microchannel unit 2, a first metal layer 3, a rectangular slit 4, a second dielectric substrate 5, a power divider 6, a third dielectric substrate 7 and a second metal layer 8, the A first metal layer 3 is printed on the lower surface of the first dielectric substrate 1, and L rectangular slits 4 are etched on the second metal layer 3; the second dielectric substrate 5 is located below the first metal layer 3, and the second dielectric substrate 5 An active divider 6 is printed on the lower surface of the substrate 5; the third dielectric substrate 7 is located below the second dielectric substrate 5, and a metal layer 8 is printed on the lower surface of the third dielectric substrate 7; it is characterized in that: the first dielectric M×N microchannel units 2 arranged periodically are etched in the substrate 1, wherein M and N are greater than or equal to 2, a...

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Abstract

The invention belongs to the technical field of antennas, and proposes a reconfigurable array antenna based on liquid metal scattering pattern; including a first dielectric substrate, a microchannel unit, a first metal layer, a rectangular slit, a second dielectric substrate, and a power splitter device, a third dielectric substrate, and a second metal layer, and M×N periodically arranged microchannel units are etched in the first dielectric substrate, wherein M, N are greater than or equal to 2, and the microchannel units are in the form of " Chinese character "shaped structure, the micro-channel unit is composed of two identical groove-shaped conduction structures and a rectangular cavity structure, the groove-shaped conduction structure and the rectangular cavity structure are integrated, and the center of the groove-shaped conduction structure and the The centers of the micro-channel units coincide with each other; the micro-channel units in the present invention are filled with liquid metal, and the antenna scattering pattern can be reconfigured by controlling the filling position of the liquid metal.

Description

technical field [0001] The invention belongs to the technical field of antennas, and relates to a microstrip array antenna whose scattering pattern can be reconfigured and its reconfiguration method. The fluidity of liquid metal and the conductivity comparable to that of solid metal are used to design and switch multiple scattering antennas. Mode, suitable for stealth radar detection platform. Background technique [0002] In the field of radar antennas, the key to improving the scattering characteristics is how to reduce the radar cross section, and the radar cross section is the most basic parameter in the scattering characteristics. It refers to a measure of the return power of a target in a given direction under the illumination of a plane wave. Its scattering includes two parts: one part is the scattering field of the structural mode item that has nothing to do with the load of the scattering antenna, which is the scattering field when the antenna is connected to a matc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00H01Q1/36H01Q1/38H01Q1/50H01Q3/34H01Q21/00H01Q21/06
CPCH01Q15/002H01Q1/364H01Q1/38H01Q1/50H01Q3/34H01Q21/0037H01Q21/061
Inventor 刘英朱亮刘兆松贾永涛刘慕彬
Owner XIDIAN UNIV
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