Waveguide Window Seal for Quick-Connect Portable Antennas
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Solution Overview
Problem
Existing satellite communication earth station antennas are cumbersome for transport and reassembly in remote locations, requiring compact and quick-disconnect solutions for waveguide components to maintain signal integrity and prevent moisture intrusion.
Innovation Solution
A quick-connect mechanism using waveguide components with rotating pins and slots, combined with mechanically robust waveguide windows that are transparent to microwave radiation and resistant to mechanical damage, allowing for secure and efficient assembly and disassembly of the antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the antenna is disassembled for transport, then portability and ease of transport are improved, but reassembly time and complexity increase
Solution Approach 1:
The antenna system is divided into separable waveguide components that can be independently transported and quickly reassembled. The waveguide is split into multiple sections with standardized connection interfaces, allowing the antenna to be disassembled for portability while enabling rapid reassembly through simple coupling mechanisms.
Solution Approach 2:
Connection features such as pins, slots, and alignment marks are pre-configured on the waveguide components during manufacturing. This preliminary preparation of connection interfaces eliminates the need for complex alignment procedures during field assembly, reducing reassembly time while maintaining connection precision.
2Productivity
If quick-connect mechanisms are used for waveguide components, then assembly speed is improved, but connection precision and signal integrity may deteriorate
Solution Approach 1:
The connection interface uses asymmetric pin and slot geometries that provide inherent alignment guidance. The pins have specific orientations and the slots are shaped to accept only correctly oriented connections, ensuring precise alignment and proper signal coupling while maintaining quick-connect functionality.
Solution Approach 2:
The waveguide connection mechanism incorporates self-aligning features where the pins automatically guide the components into correct positioning during assembly. The connection structure itself provides the alignment function without requiring external alignment tools or complex adjustment procedures, ensuring precision while maintaining speed.
3Weight of moving object
If waveguide components are separated for transport, then portability is improved, but moisture intrusion and signal loss increase
Solution Approach 1:
A seal member acts as an intermediary element between the waveguide components, creating a moisture barrier at the connection interface. The seal member is positioned to prevent moisture ingress into the waveguide interior while allowing the quick-connect mechanism to function, thus protecting against harmful environmental factors during transport and assembly.
Solution Approach 2:
A flexible seal member, likely made of elastomeric material, is used to create a moisture-tight seal at the waveguide connection interface. The flexible nature of the seal allows it to conform to the connection surfaces and maintain sealing effectiveness even with minor manufacturing tolerances or assembly variations, preventing moisture intrusion while enabling quick connection.
Data Source
AI summary
A window/seal and a satellite ground station antenna using the window/seal. A window/seal for a circular waveguide includes a right-circular cylindrical window having an axis, an annular recess surrounding and coaxial with the cylindrical window, and an annular rib surrounding and coaxial with the annular recess. An outer diameter of the annular rib is configured to fit closely within an inside diameter of the circular waveguide.