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Light flexible inflatable deployable dipole antenna structure

A dipole antenna and dipole technology are applied in the field of lightweight, flexible, inflatable and expandable dipole antenna structures, and can solve the problems of high risk, low reliability, and inability to apply the form of crossed dipole antennas. Low reliability, good sealing and pressure holding performance, and the effect of meeting the requirements of use

Active Publication Date: 2020-05-12
CHINA ELECTRONICS TECH GRP NO 39 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The size of the unfolded array is 10m long, 3.3m wide, and the mass per unit area is less than 1.6Kg / m 2 , and the storage space in the uninflated state is strictly limited, but the structure needs to be cured and conformal with the help of solar ultraviolet light, which has low reliability and high risk. There is no similar engineering application behind this technology, and the antenna form is only It is suitable for the form of planar microstrip array antenna, but not suitable for the form of crossed dipole antenna that requires a certain radiation cavity

Method used

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  • Light flexible inflatable deployable dipole antenna structure
  • Light flexible inflatable deployable dipole antenna structure
  • Light flexible inflatable deployable dipole antenna structure

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Embodiment Construction

[0035] Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0036] Such as figure 1 As shown, the lightweight flexible inflatable expandable dipole antenna structure in this embodiment includes an inflatable frame body 1 , a feeding component 2 and a reflection cavity 3 . Of course, depending on the frequency band used, the size of the designed antenna unit is also different.

[0037] figure 2It is a schematic diagram of the composition of the inflatable frame main body 1. The inflatable frame main body 1 is the main structure of the inflatable unit antenna. It has the functions of inflation and exhaust. It is made of light flexible film material and has a closed inflatable cavity. Structural frame, self-stackable after venting. The structure of the main body 1 of the inflatable frame is composed of a connected inf...

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Abstract

The invention provides a light flexible inflatable deployable dipole antenna structure. The light flexible inflatable deployable dipole antenna structure comprises an inflatable frame main body, a feed assembly and a reflection cavity. According to the invention, the weight of the dipole antenna is limited by adopting an inflatable unfolding mode; an antenna inflation frame is made of a flexible composite material, the reflection cavity is made of a metal net in a stretched mode, a feeder line does not need to be supported by a medium, the super-flexible cable is straightened by means of the tensile force of inflation and unfolding of the frame, the weight of the antenna is greatly reduced, and the advantages of the antenna form are brought into play to the maximum extent. Along with the increase of the number of arrays, the antenna can be folded, the storage ratio is small, and along with the increase of the number of arrays, the storage ratio is also reduced, so that the antenna is suitable for large-scale antennas and structures, platforms with loading weight and volume requirements, and the application prospect is wide.

Description

technical field [0001] The invention relates to the technical field of flexible antennas, in particular to a lightweight flexible inflatable expandable dipole antenna structure. Background technique [0002] Dipole antennas are widely used in reconnaissance, direction finding, communication, electronic countermeasures, etc. in low-bands such as short-wave, ultra-short-wave and microwave due to their many advantages such as wide operating frequency bandwidth, high gain, simple structure, and low cost. The traditional dipole antenna structure adopts a metal reflection cavity, and polyimide or low-dielectric foam material is used for structural support between the radiator and the ground plate. The short-circuit feeder and coaxial feeder are both processed by copper rods, and the overall weight is relatively low Heavy. The structure of the array antenna increases with the number of arrays, the difficulty of processing the reflective cavity increases, the weight of the antenna ...

Claims

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Application Information

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IPC IPC(8): H01Q1/08H01Q1/28H01Q1/36H01Q1/50H01Q9/16H01Q15/14H01Q21/06
CPCH01Q1/081H01Q1/28H01Q1/36H01Q1/50H01Q9/16H01Q15/14H01Q21/062
Inventor 雷静赵泓滨李娇张文涛樊薇曦刘世海吴利英
Owner CHINA ELECTRONICS TECH GRP NO 39 RES INST
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