Dielectric Support Threads for RF-Transparent Antenna Restraint
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Solution Overview
Problem
Current satellite antenna radiating element assemblies face structural issues due to separate supporting elements, which require additional bonding materials with limited power carrying capability, leading to RF performance interference, power losses, and risk of electro-static discharges (ESD). Additionally, existing methods are time-consuming and costly, and the antenna assemblies must withstand exposure to space without sunshields.
Innovation Solution
A radiating element support system utilizing small diameter, RF-transparent dielectric support threads that act as non-linear structural links to interconnect the radiating element with central and external supports, constraining movement in axial, radial, and torsional directions with near zero tension, thereby minimizing interference with RF waves and reducing the risk of ESD.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If separate supporting elements are used to support the radiating element, then structural support is provided, but additional bonding materials are required which have limited power carrying capability and interfere with RF performance
Solution Approach 1:
The support structure and radiating element are merged into a single integrated structure, eliminating the need for separate supporting elements and bonding materials. This integration removes the interface that caused power losses and RF performance interference while maintaining structural support functionality.
Solution Approach 2:
The harmful bonding materials and separate supporting elements are extracted/removed from the system. The patent eliminates adhesives and discrete support structures that had limited power carrying capability and caused RF interference, replacing them with an integrated design where the radiating element itself provides structural integrity.
2Strength
If separate supporting elements with bonding materials are used, then the radiating element is supported, but RF performance is interfered with and electro-static discharges can occur
Solution Approach 1:
By merging the support function into the radiating element structure itself, the patent eliminates separate bonding materials that could accumulate static charge. The integrated structure uses the radiating element's own geometry and material properties to provide support without introducing additional interfaces that could lead to ESD events.
Solution Approach 2:
The patent extracts/removes the bonding materials and separate support elements that created ESD risks. By eliminating these discrete components with different electrical properties and interfaces, the system reduces the potential for electro-static discharge events that could damage the payload.
3Stability of the object's composition
If bulky support structures are used to maintain radiating element shape, then structural stability is provided, but the bulk volume interferes with RF wave transmission
Solution Approach 1:
The patent applies local quality by using the radiating element's own localized geometry and material properties to provide structural support where needed, rather than using bulky global support structures. The integrated design maintains shape through the inherent mechanical properties of the radiating element itself in specific regions, minimizing overall volume and RF interference.
Solution Approach 2:
The support function is segmented into the radiating element's own structural segments rather than requiring a separate bulk support structure. The radiating element's geometry is designed to provide self-support through its segmented or distributed structure, eliminating the need for large-volume external supports that would interfere with RF transmission.
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 support system effectively constrains the radiating element within its nominal position, reducing deformation and preventing ESD, while minimizing the impact on RF performance and eliminating the need for bulky support structures and sunshields.
Implementation Method 1
a plurality of dielectric support threads that act as non-linear structural links which interconnect the radiating element to constrain the radiating element in one or more of an axial direction, a radial direction, and a torsional direction, and that are taut with near zero tension
Implementation Method 2
small diameter, RF-transparent dielectric support threads that act as non-linear structural links... minimizing interference with RF waves
Data Source
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Figure 1B
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AI summary
Provided are systems and methods for a radiating element assembly, for an antenna. The radiating element assembly includes a radiating element for emitting and/or receiving electromagnetic waves and a radiating element support system for physically supporting the radiating element when in operation. The radiating element support system includes a plurality of dielectric support threads, where the plurality of dielectric support threads act as non-linear structural links which interconnect the radiating element to constrain the radiating element in one or more of an axial direction, radial direction, and torsional direction, and the plurality of dielectric support threads are taut with near zero tension, and at least one support wherein the plurality of threads interconnect the radiating element with the at least one support to constrain the radiating element in the axial and/or radial and/or torsional directions. The radiating element support system may be used to constrain other satellite payloads.