Multilayer Antenna Feed Assembly for Compact Shock-Resistant Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Antenna feed assemblies for satellite communication systems face challenges in reducing weight and volume while maintaining high shock and vibration resistance and reliable performance across multiple frequency ranges.
Innovation Solution
A multi-layer, highly-integrated antenna feed assembly is designed with multiple polarization-forming networks across five layers of conductive material, featuring waveguides, hybrids, and diplexers, where each layer's recesses and surfaces form complementary features to create compact and robust electrical arrangements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antenna feed assemblies use traditional multi-component designs to ensure shock and vibration resistance, then reliability is improved, but volume and weight increase
Solution Approach 1:
The patent combines multiple separate components (waveguides, hybrids, diplexers, polarization forming networks) into a single integrated antenna feed assembly. This consolidation reduces the overall volume and weight while maintaining the structural integrity and shock/vibration resistance through unified design and mounting to the antenna reflector.
Solution Approach 2:
The integrated antenna feed assembly performs multiple functions simultaneously: it provides polarization forming networks for different frequency bands, incorporates waveguides for signal transmission, includes hybrids for signal combining/splitting, and integrates diplexers for frequency separation. This multi-functionality eliminates the need for separate assemblies for each function, reducing overall volume and weight.
2Volume of moving object
If antenna feed assemblies integrate multiple functions into compact designs, then volume and weight are reduced, but device complexity increases
Solution Approach 1:
The patent divides the antenna feed assembly into distinct functional sections (first polarization forming network, second polarization forming network, waveguides, hybrids, diplexers) that are integrated together. Each section can be designed and analyzed independently, making the complex assembly more manageable while achieving compact integration.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement to integrate multiple functional components within a compact volume. By stacking polarization forming networks at different orientations (45 degrees and 135 degrees) and arranging waveguides and other components in multiple layers, the design achieves high integration without excessive complexity in any single plane.
3Weight of moving object
If antenna feed assemblies reduce component count for weight savings, then weight is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent specifies precise geometric parameters for the integrated components, including waveguide dimensions, polarization forming network orientations (45 degrees and 135 degrees), and mounting configurations. By carefully controlling these parameters during manufacturing, the design achieves the required performance with reduced component count and minimized weight.
Data Source
Figure 1A
Figure 1B
Figure 2~3
AI summary
A multi-layer, highly-integrated antenna feed assembly and a method of manufacturing a multi-layer, highly-integrated antenna feed assembly are described herein. The antenna feed assembly includes multiple polarization forming networks operable over different frequency bands. In an example embodiment, the antenna feed assembly includes five layers of conductive material. Alternatively, the number of layers may be different than five.