Radar Antenna and Dielectric Wiring Layout for Low-Interference Emission
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Solution Overview
Problem
Existing radar modules integrated with lighting modules face challenges in optimizing electromagnetic radiation transmission and interaction with metal components, leading to inefficiencies and potential interference.
Innovation Solution
The configuration of a dielectric layer with a specific thickness and positioning of metal wiring within the layer to minimize electromagnetic interference, forming standing waves with minimum electric field intensity, thereby enhancing radiation transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal wiring is added to the electric device for contacting elements, then electrical connectivity is improved, but electromagnetic radiation transmission is degraded due to interference and absorption
Solution Approach 1:
A dielectric layer is introduced as an intermediary material between the radar antenna and the metal wiring. This dielectric layer has specific electromagnetic properties that allow it to shield the metal wiring from the radar radiation, preventing the metal from absorbing and interfering with the electromagnetic waves while still allowing the wiring to perform its electrical connectivity function.
Solution Approach 2:
The patent employs a composite structure consisting of multiple layers including dielectric materials and metal wiring. The dielectric layer with specific permittivity and permeability properties is combined with the metal wiring to create a composite structure that simultaneously achieves electrical connectivity and minimizes electromagnetic interference.
2Adaptability or versatility
If the radar module is integrated with lighting module features, then device functionality is improved, but electromagnetic radiation transmission is degraded due to additional metal components
Solution Approach 1:
The dielectric layer serves as a mediator between the radar antenna and the lighting module components (including metal wiring and LED structures). It allows the integrated device to maintain both radar and lighting functions while shielding the metal components of the lighting module from interfering with radar radiation transmission.
3Volume of moving object
If metal wiring is positioned closer to the radar antenna for compact design, then device size is reduced, but electromagnetic interference increases
Solution Approach 1:
The dielectric layer is positioned between the radar antenna and metal wiring, enabling compact device design by allowing close proximity of components while the dielectric material prevents electromagnetic interference. The specific electromagnetic properties of the dielectric layer ensure that even at reduced distances, the metal wiring does not significantly absorb or reflect radar radiation.
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 configuration optimizes electromagnetic radiation transmission, allowing for compact radar modules integrated with lighting features, such as illuminated logos, while reducing interference and enhancing signal strength.
Implementation Method 1
A thickness d of the dielectric layer measured in a vertical direction is determined so that the emitted electromagnetic radiation forms at least one standing wave having at least one minimum of electric field intensity within the dielectric layer
Data Source
AI summary
An electronic system includes a radar antenna, configured to emit electromagnetic radiation having a wavelength λ in a first direction. The electronic system also includes an electric device. The electric device is arranged in an emission direction of the radar antenna. The electric device includes a dielectric layer and a metal wiring for contacting elements of the electric device. A thickness of the dielectric layer measured in the first direction is determined so that the emitted electromagnetic radiation forms at least one standing wave having at least one minimum of electric field intensity within the dielectric layer. The metal wiring is arranged in a horizontal layer of the dielectric layer. A position, in the first direction, of the metal wiring is determined so that it corresponds to a minimum of the electric field strength of electromagnetic radiation having the wavelength λ.