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Low-profile circularly-polarized equal-flux antenna module

An antenna module and circular polarization technology, which is applied in the field of microelectronic antennas, can solve the problems of difficult application of cube stars, large dielectric blocks, and high profiles, and achieve good circular polarization equal-flux radiation performance, small volume, and high profile low effect

Active Publication Date: 2021-06-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this scheme, although the coverage angle of the antenna is large, the loaded dielectric block is large in size, high in mass, and high in profile, making it difficult to apply it to a cubesat

Method used

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  • Low-profile circularly-polarized equal-flux antenna module
  • Low-profile circularly-polarized equal-flux antenna module
  • Low-profile circularly-polarized equal-flux antenna module

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] Such as figure 1 As shown, the low-profile circularly polarized equal-flux antenna module of the present invention includes an antenna array 10, a radiator 20, a connecting plate 30, and a feeding plate 40 that are stacked in sequence; The network is electrically connected to the antenna array 10 after the probe passes through the connection board 30 and the radiator 20 . Such as figure 2 As shown, the antenna array 10 includes more than two circles of concentrically distributed antenna array elements, and each antenna array element forms mutually independent concentric circularly polarized apertures through feeding control. Good circularly polarized equal-flux radiation performance is achieved. The structure is simple to assemble and easier to process, light in weight, small in size, and low in profile. The connecting plate 30 may be an aluminum plate, which is used for strengthening the antenna and installing probes connecting the upper and lower layers.

[0026]...

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Abstract

The invention discloses a low-profile circularly-polarized equal-flux antenna module, relates to the field of microelectronic antennas, and provides the scheme for solving the problem of contradiction between volume and gain in the prior art. The module comprises an antenna array, a radiator, a connecting plate and a feed plate which are stacked in sequence, the feed network on the feed panel is electrically connected with the antenna array after penetrating through the connecting plate and the radiator through a probe; and the antenna array comprises more than two circles of concentrically distributed antenna array elements, and each antenna array element forms mutually independent concentric circular polarization calibers through feed control. The module has the advantage that good circular polarization equal-flux radiation performance is realized. The structure is simple to assemble, easier to process, light in weight, small in size and low in profile. Especially when only two circles of antenna array elements are arranged, the antenna is especially suitable for being integrated on the surface of a cubesat.

Description

technical field [0001] The invention relates to the field of microelectronic antennas, in particular to an antenna module with low profile circular polarization and equal flux. Background technique [0002] Compared with expensive large satellites, small satellites have the advantages of low manufacturing cost and short development cycle. The investment in launching one large satellite can be used to launch multiple small satellites. Therefore, small satellites have been widely used in various fields in recent years. A lot of attention. Among them, CubeSat has been widely used in the field of low-orbit satellites due to its advantages of light weight, easy integration and modularization. A unit of a cube star has a cube volume of 10 cm × 10 cm × 10 cm, which is called 1U. Multiple units can be combined into nU satellites. Up to 24 units can be combined, and the structure is flexible and convenient. However, due to the limited size, how to integrate radio frequency devices ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/06H01Q21/00H01Q9/04H01Q1/28
CPCH01Q21/065H01Q21/0006H01Q21/00H01Q9/0414H01Q9/0428H01Q9/045H01Q1/288H01Q9/0435H01Q9/0421H01Q21/20H01Q21/24
Inventor 廖绍伟李思禹薛泉
Owner SOUTH CHINA UNIV OF TECH
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