Integrated Radar Antenna Layout for Space-Saving Fill-Level Sensing
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Solution Overview
Problem
Existing level radar sensors for measuring vessel contents require significant space due to separate transmission and reception antennas, which complicates installation and increases performance issues like electronic interference and dead zones.
Innovation Solution
A compact level radar antenna assembly with integrated or fixed transmitting and receiving antennas, where the transmitting antenna is larger than the receiving antenna, allowing for space-saving design and eliminating the need for antenna adjustment, and enabling measurement through a container wall or ceiling without opening it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate transmitting and receiving antenna assemblies are used, then measurement precision is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent combines the transmitting antenna assembly and receiving antenna assembly into a single integrated housing structure. The transmitting antenna is positioned at a first location within the housing, while the receiving antenna is positioned at a second location, both within the same housing. This merging approach maintains the functional separation needed for precise measurement while reducing overall device complexity and space requirements compared to completely separate antenna assemblies.
2Device complexity
If antenna assemblies are integrated in the same housing, then device complexity is reduced, but measurement precision may deteriorate
Solution Approach 1:
The patent segments the antenna system by positioning the transmitting antenna and receiving antenna at different locations within the housing. The transmitting antenna assembly includes a transmitting antenna at a first location, while the receiving antenna assembly includes a receiving antenna at a second location. This spatial segmentation within the integrated housing maintains signal quality and measurement precision while achieving device integration.
Solution Approach 2:
The patent applies local quality by optimizing the specific positions of the transmitting and receiving antennas within the housing. Each antenna is placed at a location that optimizes its specific function - the transmitting antenna at a position that maximizes signal transmission, and the receiving antenna at a position that maximizes signal reception, thereby maintaining measurement precision within the integrated structure.
3Ease of operation
If the container is opened for measurement, then measurement accessibility is improved, but operational safety and contamination risk increase
Solution Approach 1:
The radar level measurement device is designed to measure fill levels through the container wall without requiring the container to be opened. The housing contains both transmitting and receiving antenna assemblies that can penetrate and receive signals through non-metallic container walls, enabling the device to perform level measurement while maintaining container integrity and avoiding contamination risks.
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 allows for accurate, space-efficient level measurement in containers without opening them, reducing interference and enhancing measurement range and signal quality, particularly beneficial for IBC containers when nearly full.
Implementation Method 1
a transmitting antenna assembly (20) configured to transmit a transmission signal in a direction of a product surface of a product stored in the container
Implementation Method 2
a receiving antenna assembly (30) configured to receive a transmission signal reflected at the product surface
Data Source
AI summary
The present invention relates to a level radar antenna assembly for measuring a level in a container. The level radar antenna assembly comprises a transmitting antenna assembly for transmitting a transmission signal in the direction of a filling material surface of a filling material stored in the container, a receiving antenna assembly for receiving a transmission signal reflected at the filling material surface, and a housing. The transmitting antenna assembly and the receiving antenna assembly are integrated in the housing, the transmitting antenna assembly being larger than the receiving antenna assembly.