研究目的
To mitigate multiple reflections between automotive radars and car bumpers by designing a low-RCS antenna system.
研究成果
The designed low-RCS antenna system effectively reduces multiple reflections between automotive radars and car bumpers, achieving a 17 dB RCS reduction. This solution is compatible with standard PCB technology, not increasing the complexity or costs of mm-wave automotive radar sensors.
研究不足
The empirical design method's main limitation is the accuracy of phase measurements at mm-wave frequencies. Full-wave simulations were not feasible due to the complexity of the models.
1：Experimental Design and Method Selection:
The design involves creating a low-RCS antenna system using AMC (Artificial Magnetic Conductor) structures to achieve destructive interference in the reflected wave.
2：Sample Selection and Data Sources:
Prototypes were fabricated on a single-layer substrate of RO3003 from Rogers Corporation.
3：List of Experimental Equipment and Materials:
A 25-dBi standard-gain horn antenna, a plastic mount, and a stepped motor for positioning were used.
4：Experimental Procedures and Operational Workflow:
The setup included monostatic measurements with time gating to isolate the AUT's response. Measurements were taken at various positions and averaged.
5：Data Analysis Methods:
The RCS reduction was estimated using a simple formula and compared with measurement results.
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