Dielectric Radar Signal Guide for Stress-Isolated Wideband Coupling
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Solution Overview
Problem
Semiconductor radar chips in process automation are vulnerable to mechanical stress, environmental factors, and require improved signal transmission with wider bandwidth.
Innovation Solution
A radar module design featuring a dielectric radar signal guide with a metallic layer and an intermediate space, allowing for high-frequency signal transmission with mechanical decoupling and improved bandwidth, using a dielectric waveguide and antenna structures for robustness and smaller size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If semiconductor radar chips are used in process automation, then radar signal generation and transmission is enabled, but the chips are vulnerable to mechanical stress and environmental factors
Solution Approach 1:
The radar module is divided into functionally independent components: the semiconductor radar chip (signal source) and the waveguide structure (signal transmission), separated by a predetermined distance. This segmentation isolates the fragile chip from mechanical stresses affecting the waveguide, while maintaining electromagnetic coupling through the intermediate space.
Solution Approach 2:
An intermediate space is introduced between the radar chip and the waveguide, acting as a mediator that transmits electromagnetic signals while providing mechanical decoupling. This intermediate region protects the chip from direct mechanical contact while enabling signal transmission to the waveguide structure.
2Reliability
If high-frequency radar signals are transmitted, then bandwidth is improved, but mechanical coupling between components increases vulnerability
Solution Approach 1:
The patent replaces direct mechanical coupling between the radar chip and waveguide with electromagnetic coupling through an intermediate space. This substitution eliminates mechanical stress transmission while maintaining high-frequency signal transmission, achieving both wide bandwidth and mechanical robustness.
Solution Approach 2:
The intermediate space serves as a non-mechanical intermediary that enables electromagnetic signal transmission between the chip and waveguide without requiring physical contact. This mediator allows high-frequency signals to pass while preventing mechanical stress coupling.
3Productivity
If the radar signal guide is mechanically coupled to the signal source, then signal transmission is efficient, but the semiconductor chip is exposed to mechanical loads
Solution Approach 1:
Direct mechanical coupling is replaced by electromagnetic coupling through the intermediate space. The waveguide receives electromagnetic energy from the chip without mechanical contact, maintaining transmission efficiency while protecting the chip from mechanical loads applied to the waveguide structure.
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 design protects semiconductor chips from mechanical stress and environmental factors while enabling efficient high-frequency signal transmission with bandwidths greater than 5%, suitable for level measurements and object detection.
Implementation Method 1
The radar signal guide is configured to pick up the radar signal emitted by the radar signal source in order to transmit the radar signal to an antenna
Implementation Method 2
the metallic layer serves to excite an electromagnetic signal with a predetermined waveguide mode in the radar signal guide. Electromagnetic waves are propagatable in a waveguide only in certain electric field and magnetic field orientations
Implementation Method 3
The space formed between the radar signal source and the radar signal guide mechanically decouples the radar signal source from the radar signal conductor, i.e., a mechanical load acting on the radar signal guide is not transmitted to the radar signal source
Implementation Method 4
the metallic layer serves to excite an electromagnetic signal with a predetermined waveguide mode in the radar signal guide
Data Source
AI summary
A radar module for process automation including process measurement technology and the automation industry is provided, the radar module including: a radar signal source configured to generate and to transmit, and/or to receive, a radar signal; and a dielectric radar signal guide configured to receive the radar signal and then to transmit the radar signal to an antenna, a waveguide, and/or a dielectric lens, the dielectric radar signal guide being arranged at a predetermined distance from the radar signal source, forming an intermediate space, and an end face of the dielectric radar signal guide facing the radar signal source at least partially has a metallic layer.