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Liquid metal reconfigurable array antenna based on two-dimensional stretchable flexible cavity

A technology of liquid metal and array antenna, which is applied in the direction of separately energized antenna array, specific array feeding system, antenna, etc., can solve the problem that it is difficult to meet the practical application of ultra-wideband reconfigurable antennas, do not make full use of liquid metal, and control the liquid state. The metal method is cumbersome and other problems, to achieve good sealing and control convenience, avoid circuit power loss, and enhance the effect of practicability

Active Publication Date: 2022-05-31
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Claims
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Problems solved by technology

The application of liquid metal has achieved a wide range of frequency reconfiguration, but the form of filling and extracting microfluidic tubes makes the reconfiguration process slow and imprecise, and the liquid metal in the tube has a large fluidity, resulting in instability of the overall performance of the antenna
[0006] Currently published papers or patents on liquid metal reconfigurable microstrip antennas all have the above-mentioned problems, that is, the characteristics of liquid metal are not fully utilized, and the way of regulating liquid metal is too cumbersome and unstable. Practical Applications of Reconfigurable Antennas

Method used

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  • Liquid metal reconfigurable array antenna based on two-dimensional stretchable flexible cavity
  • Liquid metal reconfigurable array antenna based on two-dimensional stretchable flexible cavity
  • Liquid metal reconfigurable array antenna based on two-dimensional stretchable flexible cavity

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Embodiment Construction

[0028] Below in conjunction with the accompanying drawings in the examples of the present invention, the technical solutions in the examples of the present invention will be specifically described. Book

[0029] Referring to FIG. 1 , referring to FIG. 2 , referring to FIG. 3 , referring to FIG. 4 , referring to FIG. 5 , referring to FIG. 6 .

[0035] The liquid metal 2 is a gallium indium alloy (EGaIn), and the alloy contains 75% of gallium and 25% of indium,

[0036] The material of the dielectric splint 3 is a polypropylene PP sheet; the dielectric substrate 5 is a Rogers RO3003 sheet.

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Abstract

The invention belongs to the technical field of antennas, and relates to a liquid metal reconfigurable array antenna based on a two-dimensional stretchable flexible cavity and a reconfiguration method thereof. The invention utilizes the fluidity of the liquid metal to construct a frequency reconfigurable microstrip antenna, the liquid metal is filled in the sealed flexible medium cavity, the flexible medium cavity can achieve 400% stretching and elongation, and the liquid metal radiator can be changed by stretching the flexible medium cavity The size can realize the continuous adjustment of the working frequency within 5~18GHz. Compared with the reconfigurable antenna using radio frequency devices, the antenna of the present invention can realize continuous tuning in a large frequency range. The elongation of the radiator is realized by automatic stretching equipment, which is more stable and practical than the injection-type reconfigurable liquid metal antenna.

Description

Liquid metal reconfigurable array antenna based on two-dimensional stretchable flexible cavity technical field The invention belongs to the technical field of antennas, and relates to a liquid metal reconfigurable based on two-dimensional stretchable flexible cavity. An array antenna and a reconstruction method thereof use a dielectric cavity to carry liquid metal to form a radiation patch, so that the shape of the patch can be adjusted according to changes according to the application requirements, enabling the reconstruction of the antenna operating frequency. Background technique In recent years, with the rapid development of wireless communication technology and emerging applications, wireless systems have a large capacity, a variety of Functions and ultra-wide working bandwidth have become an inevitable trend. In order to achieve multi-function, the system needs multiple antennas to work. When the number of lines increases, the wireless system will inevitably en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q1/50H01Q5/10H01Q5/307H01Q21/20
CPCH01Q1/364H01Q5/10H01Q5/307H01Q1/48H01Q1/50H01Q21/0006H01Q21/20Y02D30/70
Inventor 陈益凯贾凌钧杨仕文
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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