Telescopic Support Arms for Inflatable Satellite Antennas
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Solution Overview
Problem
Current inflatable antennas for radio wave systems, such as radar and communications, are cumbersome and limited in their ability to track satellites in various orbital patterns due to weight and packability constraints of their support structures, making them unsuitable for Low Earth Orbit (LEO) and Mid Earth Orbit (MEO) satellite tracking.
Innovation Solution
A modular, packable support structure for inflatable antennas that includes adjustable support arms and a base with azimuth and elevation actuators, allowing the antenna to be quickly assembled and disassembled, and featuring a slip ring for continuous rotation and electrical signal transmission, enabling tracking of LEO, MEO, and Geosynchronous Equatorial Orbit (GEO) satellites.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional rigid support structures are used for inflatable antennas, then structural stability is improved, but weight and packability deteriorate
Solution Approach 1:
The support structure is divided into multiple telescopic support arms that can be segmented and collapsed. Each support arm consists of multiple segments that can be extended or retracted independently, allowing the structure to be stable when deployed and compact when packed, thus resolving the contradiction between structural stability and weight/packability.
Solution Approach 2:
The support structure transitions from a static rigid form to a dynamic telescopic system. The support arms can dynamically adjust their length and configuration, being extended to provide structural stability during operation and collapsed to reduce weight and improve packability for transport, thereby resolving the contradiction between stability and portability.
2Measurement precision
If traditional non-packable support structures are used, then tracking precision is improved, but ease of transport deteriorates
Solution Approach 1:
The support structure is segmented into collapsible support arms that can be disassembled into compact components. This segmentation allows the system to maintain tracking precision when assembled and deployed, while enabling easy transport when collapsed and packed, thus resolving the contradiction between tracking precision and ease of transport.
Solution Approach 2:
The telescopic support arms are designed with nested segments that can be collapsed one inside another, similar to a nested doll structure. This nesting mechanism allows the support structure to be compacted into a small package for easy transport, while expanding to full size when deployed to maintain accurate satellite tracking capability.
3Stability of the object's composition
If heavy support structures are used to maintain stability, then antenna stability is improved, but packability deteriorates
Solution Approach 1:
The support structure uses dynamic telescopic mechanisms instead of heavy static structures. The support arms can be extended to provide adequate stability for antenna operation, then collapsed to a compact form for packing, thus achieving both antenna stability and good packability without requiring heavy materials.
Solution Approach 2:
The support structure utilizes lightweight yet strong materials and flexible design principles, allowing the support arms to be thin-walled but structurally sound when deployed. This enables the structure to maintain antenna stability during operation while being highly packable when collapsed, resolving the contradiction between stability and packability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a lightweight, easily transportable, and rapidly deployable antenna system that can accurately track satellites in multiple orbits, overcoming the limitations of existing support structures by enabling precise azimuth and elevation adjustments and facilitating easy setup and teardown.
Implementation Method 1
The assembly may include a slip ring disposed between the stationary portion and the rotatable portion. The slip ring may facilitate communication of electrical signals between the stationary portion and the rotatable portion.
Implementation Method 2
The base may include an azimuth actuator that adjusts an azimuth position of the inflatable antenna and an elevation actuator that adjusts an elevation angle of the inflatable antenna.
Implementation Method 3
The assembly may include a timing belt coupled with the inflatable antenna and the elevation actuator. The elevation actuator may maneuver the timing belt to adjust the elevation angle of the inflatable antenna.
Data Source
AI summary
An inflatable tracking antenna assembly may include an inflatable antenna. The inflatable antenna may be configurable in a packed configuration and a deployed configuration. In the deployed configuration the inflatable antenna may be generally spherical in shape. The assembly may include an antenna support structure. The support structure may include a plurality of support arms that couple with lateral sides of the inflatable antenna. The support structure may include a base that is coupled with each of the plurality of support arms. The base may include an azimuth actuator that adjusts an azimuth position of the inflatable antenna and an elevation actuator that adjusts an elevation angle of the inflatable antenna. The support structure may include a plurality of support legs that extend outward from the base.