Multi-Layer Antenna Feed Assembly for Compact Multi-Band Reliability
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Solution Overview
Problem
Existing antenna feed assemblies for satellites face challenges in achieving weight and volume reductions 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 and conductive layers, featuring complementary layer features that form waveguides, hybrids, and diplexers, allowing for compact and robust construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If antenna feed assemblies are integrated into multi-layer structures to reduce volume and weight, then volume and weight are reduced, but shock and vibration resistance may be compromised
Solution Approach 1:
The antenna feed assembly is divided into multiple conductive layers (first conductive layer, second conductive layer, third conductive layer) that are stacked and separated by dielectric layers. Each layer contains specific feed network components (waveguides, hybrids, diplexers, filters) that are spatially segmented to achieve compact integration while maintaining structural integrity and shock/vibration resistance through the distributed layered architecture.
Solution Approach 2:
Multiple feed networks are nested within the multi-layer structure, with each layer containing complete functional subsets (waveguides, hybrids, diplexers, filters) that are embedded within the conductive layers. The nested arrangement allows compact integration of multiple functional networks while maintaining robust mechanical performance through the stacked configuration.
2Adaptability or versatility
If multiple polarization-forming networks are integrated into different frequency bands, then adaptability and versatility are improved, but device complexity increases
Solution Approach 1:
The multi-layer antenna feed assembly is designed to support multiple polarization-forming networks operating at different frequency bands (e.g., Ka-band, K-band, Ku-band) within a single integrated structure. Each conductive layer contains complete feed network components that can be independently configured for different frequency ranges, enabling one structure to serve multiple functional purposes across different operational bands.
Solution Approach 2:
The patent transitions from planar two-dimensional layouts to three-dimensional stacked architectures by arranging multiple feed networks vertically across different conductive layers. This dimensional transition allows multiple polarization-forming networks for different frequency bands to be integrated without excessive planar complexity, as components are distributed through the third dimension (stacked layers) rather than occupying the same two-dimensional space.
Data Source
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.