Plastic Waveguide Antenna Element With Integrated Heat Conduction
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Solution Overview
Problem
Radar systems face significant heat dissipation challenges due to high heat emission during operation, particularly in compact designs, which affects thermal conductivity and measurement accuracy.
Innovation Solution
The radar system incorporates an antenna element made of plastic with integrated channels and metallized walls, featuring heat conducting elements such as recesses and openings, coated with thermally conductive materials, and optionally embedded metallic or thermally conductive plastic bodies, enhancing heat dissipation and thermal conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the radar system uses a compact design with plastic antenna element, then the system size is reduced and integration is improved, but heat dissipation capability deteriorates due to low thermal conductivity of plastic material
Solution Approach 1:
The patent applies composite materials by combining plastic (for electromagnetic properties and integration) with metal heat conducting elements (for thermal conductivity). The antenna element consists of a plastic body with embedded metal channels and heat conducting elements, creating a composite structure that simultaneously achieves compact size and effective heat dissipation.
Solution Approach 2:
The patent introduces heat conducting elements as intermediary components between the electronic component (heat source) and the external environment. These metal elements act as thermal mediators, conducting heat away from the electronic component through the plastic antenna element to external surfaces or heat sinks.
2Power
If high power is transmitted to achieve sufficient radar wave range, then transmission capability is improved, but heat emission increases causing thermal load in compact space
Solution Approach 1:
The patent converts the harmful effect of heat emission into a beneficial thermal management system. The heat conducting elements and metallized channels are designed to capture and redirect the waste heat generated by high-power transmission, transforming it from a problem into a controlled thermal flow that can be managed and dissipated effectively.
3Adaptability or versatility
If channels with metallized walls are introduced into the antenna element, then waveguide functionality is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent merges multiple functions into the antenna element structure: the plastic body provides electromagnetic insulation and structural support, while the embedded metal channels simultaneously serve as waveguides for electromagnetic wave propagation and as heat conducting pathways. This integration reduces the need for separate components and simplifies manufacturing.
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
Improves heat dissipation and temperature uniformity within the antenna element, enhancing measurement accuracy and transmission power while maintaining compactness and robustness.
Implementation Method 1
Heat conducting elements are introduced into the antenna element... the channel walls being electrically conductive, the channels forming waveguides
Implementation Method 2
an electronic component for transmitting and/or receiving radar signals... radar systems have the advantage that they are reliable even in poor weather conditions
Implementation Method 3
In addition to measuring distances to detected vehicles and objects, it is also possible to determine the relative speed to other vehicles by using the Doppler effect
Data Source
AI summary
A radar system, including an electronic component for transmitting and/or receiving radar signals. The radar system also includes an antenna element the antenna element being configured as a plastic body into which channels with metallized channel walls are introduced, the channels forming waveguides. Heat conducting elements are introduced into the antenna element.