Telescopic Waveguide Assembly for Thermal Expansion Management
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Solution Overview
Problem
Existing radio wave guiding systems in environments with strong temperature variations, such as satellite antennas, face challenges in managing thermal expansion of conductive waveguides like aluminum, leading to mechanical, thermal, and radio performance degradation due to complex routing and additional mass.
Innovation Solution
A radio wave guiding assembly featuring a pair of waveguides with a connecting piece that allows one waveguide to slide within a groove gap waveguide channel, absorbing thermal expansion while maintaining a compact and efficient design, avoiding the need for flexible guides and relaxation loops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If flexible guides and relaxation loops are used to absorb thermal expansion, then thermal expansion is managed, but device complexity and mass increase
Solution Approach 1:
The waveguide incorporates a telescopic mechanism with movable sections that can extend and contract along the wave propagation direction. This dynamic structure allows the waveguide to adapt its length in response to thermal expansion and contraction, eliminating the need for static flexible guides and relaxation loops while maintaining simple routing
Solution Approach 2:
The telescopic waveguide is designed to utilize thermal expansion principles by allowing controlled movement of its sections relative to each other. The movable sections can slide along guide rails or within bearings, enabling the waveguide to expand when heated and contract when cooled, directly managing thermal effects without adding complex external components
2Temperature
If flexible guides and relaxation loops are used to absorb thermal expansion, then thermal expansion is managed, but mass increases
Solution Approach 1:
The telescopic waveguide uses lightweight movable sections that slide within each other, managing thermal expansion through a compact dynamic structure rather than adding mass-intensive flexible guides and relaxation loops
Solution Approach 2:
The waveguide employs a nested telescopic structure where movable sections are housed within or alongside fixed sections. When thermal expansion occurs, the movable sections extend outward; when contracted, they retract into the fixed sections, creating a space-efficient design that manages thermal effects without increasing overall mass
3Temperature
If complex routing with flexible guides is used, then thermal expansion is managed, but radio performance degrades due to insertion losses
Solution Approach 1:
The telescopic waveguide maintains continuous rigid metal-to-metal contact through its movable sections, ensuring consistent electromagnetic wave transmission without the bends, flexes, and joints characteristic of flexible guides, thereby avoiding insertion losses and maintaining radio performance
Solution Approach 2:
The waveguide is divided into fixed and movable sections that maintain proper alignment and continuous conductive path. The segmentation allows thermal expansion management while preserving the integrity of the electromagnetic waveguide structure, avoiding the performance degradation associated with complex flexible routing
4Temperature
If complex routing with relaxation loops is used, then thermal expansion is managed, but manufacturing difficulty increases
Solution Approach 1:
The telescopic waveguide with its standardized movable and fixed sections offers a modular design that simplifies manufacturing compared to custom-formed flexible guides and relaxation loops. The modular sections can be produced using standard machining processes and assembled through straightforward connection mechanisms
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
This solution simplifies radio wave routing, maintains performance integrity, and reduces system complexity and mass, effectively managing thermal expansion without degrading radio, thermal, or mechanical performance.
Implementation Method 1
the latter must be designed to take into account their expansion which can sometimes reach several centimeters in the direction of wave guidance
Data Source
Figure 1~2
Figure 3~4
AI summary
The present invention relates to a radio wave guiding assembly (23) comprising a pair of waveguides (30) consisting of a first waveguide (31) and a second waveguide (32) forming successive sections of the same radio wave transmission channel. The assembly (23) is characterized in that it further comprises a connecting piece (33) comprising two plates (35A) arranged opposite each other, defining an internal space (36) between them, and delimitation means (37) delimiting within the internal space (36) a radio wave transmission channel (40), the transmission channel (40) opening on one side onto the first waveguide (31) and on the other side onto the second waveguide (32).