Horn Antenna Filling Structure to Eliminate Signal-Reflecting Interfaces
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Solution Overview
Problem
Horn antennas for radar measuring devices face challenges with signal reflections and reduced measurement accuracy due to interfaces between multiple material sections, leading to high manufacturing costs and decreased signal transmission quality.
Innovation Solution
A one-piece filling for the horn antenna is produced by pressing or sintering sections with different material compositions, ensuring smooth transitions and eliminating interfaces, thereby improving signal transmission quality and reducing manufacturing effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If horn antenna filling is made from multiple sections with different materials, then desired properties such as mechanical stability and signal characteristics can be achieved in different sections, but interfaces between sections cause signal reflections and reduce measurement accuracy
Solution Approach 1:
The patent merges multiple separately manufactured filling sections into a single integrated filling structure. By combining the sections into one piece with continuous material composition, the interface problems (signal reflections and measurement accuracy reduction) are eliminated while preserving the ability to have different material properties in different regions of the filling.
Solution Approach 2:
The patent uses composite material composition within a single filling structure, where the material composition varies continuously or in defined regions within the same piece. This allows different sections to exhibit different properties (mechanical stability, signal characteristics) without creating discrete interfaces that cause signal reflections.
2Adaptability or versatility
If multiple filling sections are manufactured separately and assembled, then different material properties can be achieved, but extensive machining is required to ensure gap-free fit and reduce manufacturing costs
Solution Approach 1:
The patent combines multiple filling sections into a single manufactured piece, eliminating the need for separate manufacturing and assembly operations. This reduces manufacturing effort and cost by removing extensive machining requirements needed to ensure gap-free fits between separately manufactured sections.
Solution Approach 2:
While the filling is manufactured as one piece, the material composition is segmented into different regions with different properties. This allows the benefits of having different material properties without requiring separate manufacturing and assembly of physical sections.
3Measurement precision
If air gaps are avoided between filling sections, then signal reflections are reduced, but interfaces still exist and reduce signal transmission quality
Solution Approach 1:
The patent merges multiple filling sections into a single integrated structure, eliminating interfaces entirely. This resolves the problem of signal reflections at interfaces and improves signal transmission quality without the complexity of managing interfaces between separate sections.
Solution Approach 2:
The patent creates a homogeneous filling structure in terms of material continuity, where the filling is made from a single piece with continuous material composition. This eliminates the heterogeneity introduced by interfaces between separate sections, thereby improving signal transmission quality.
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 method enhances signal transmission quality by minimizing interference and signal loss, while maintaining desired properties such as mechanical stability and beam patterns, at lower manufacturing costs.
Implementation Method 1
The raw filling sections are pressed or sintered
Implementation Method 2
The raw filling sections are pressed or sintered
Implementation Method 3
Heat treatment of the raw filling. Through heat treatment, the raw filling can, for example, be brought into a mechanically stable and resilient form
Data Source
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AI summary
The invention relates to a method (20) for producing a filling (7) for a horn antenna (1) for a radar measuring device, a horn antenna (1) for a radar measuring device, and a radar measuring device with a horn antenna (1). The filling (7) comprises at least a first material composition and a second material composition that differs from the first material composition. At least the first material composition is provided to form a first section (71) of a raw filling. At least the second material composition is provided to form at least a second section (72) of the raw filling. The second section (72) differs from the first section (71). The sections (71, 72) of the raw filling are pressed or sintered.