Surface wave suppression on antenna devices for an automotive radar antenna system
EP4441844B8Active Publication Date: 2026-07-08YINWANG INTELLIGENT TECHNOLOGIES CO LTD
Patent Information
- Application Number
- EP2022713312
- Authority / Receiving Office
- EP · EP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-03-01
- Publication Date
- 2026-07-08
- Estimated Expiration
- 2042-03-01
AI Technical Summary
Technical Problem
Conventional automotive radar antenna systems suffer from surface waves that distort the radiation pattern and increase coupling between antennas, especially in high-resolution systems operating above 76 GHz with complex antenna configurations.
Method used
The use of resistive sheets on the antenna aperture plane to suppress surface waves, which are printed, painted, or deposited, reducing surface wave amplitude by absorbing induced electrical current.
Benefits of technology
The solution results in a smoother radiation pattern with reduced fluctuations and decreased coupling between antennas, simplifying fabrication and enhancing overall system performance.
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Citation Information
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