Self-Structured Parabolic Antenna Reflector
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Solution Overview
Problem
Conventional satellite communication antennas with metallic screens face challenges in achieving a perfect parabolic shape due to lack of structural stiffness, leading to increased complexity, mass, and manufacturing costs, while also requiring additional structural elements for support.
Innovation Solution
A parabolic antenna with a self-structured reflector made from a single piece of laminated expanded screen, featuring a reinforcement edge and no structural ribs, allowing for a lightweight and cost-effective construction with a perfect parabolic shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If metallic screens are used instead of solid metal plates, then weight and wind resistance are reduced, but structural stiffness is lost requiring additional support elements
Solution Approach 1:
The patent uses a mesh screen as a flexible reflective surface that can maintain its shape through proper tensioning and support结构设计, eliminating the need for rigid solid plates while maintaining functionality
Solution Approach 2:
The mesh screen is divided into multiple segments that can be independently supported by struts and ribs, allowing each segment to be structurally optimized while maintaining overall flexibility and reducing total weight
2Strength
If segmentation of the reflective surface is implemented, then structural support is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple functions into integrated components - the struts serve both as structural support elements and as mounting structures for the mesh segments, reducing the total number of separate components needed
Solution Approach 2:
The support struts are designed to perform multiple functions: providing structural support, mounting mesh segments, and potentially serving as adjustment mechanisms, thereby reducing the need for dedicated separate components for each function
3Strength
If additional structural elements are added to support the screen, then structural stiffness is improved, but antenna mass increases
Solution Approach 1:
The mesh screen itself acts as a lightweight flexible structure that can provide sufficient stiffness when properly tensioned, eliminating the need for heavy rigid support structures
Solution Approach 2:
The support structure is designed to allow dynamic adjustment and optimization of tension in the mesh screen, enabling the system to achieve maximum stiffness with minimum structural mass through optimal tensioning rather than over-engineered rigid supports
Data Source
AI summary
The present invention relates to a parabolic antenna having a base, mounting pole head unit, rear structure, support pole, low noise converter, and reflector, said reflector being made in a single piece in laminated expanded screen, and having a perfectly parabolic, self-structured shape without any bearing frame, fastened to the rear structure of the parabolic antenna by means of a fastening unit, and having a reinforcement edge facing away from the concavity of the reflector, and rolled or in one or two levels in the peripheral region of the reflector, said reflector having one or more non-perforated or smooth sections, in arbitrary vertical, and/or horizontal orientations, extending over the fastening unit.