Suppression of Electromagnetic Interference in Automotive Radar Systems Using Flexible Meta-Absorbers
DOI:
https://doi.org/10.2026/m9m2xy72Abstract
This study presents the design, fabrication, and characterization of a flexible meta-absorber for suppressing electromagnetic interference in automotive radar systems operating at 77 GHz. The proposed structure, consisting of a patterned copper layer on a PDMS substrate, achieves over 92% absorption at 77.2 GHz with a bandwidth of 2.8% and maintains efficiency above 90% under bending radii down to 2 cm. Experimental validation demonstrates a 12 dB enhancement in signal-to-noise ratio and 38% reduction in false alarm rate during field tests. The absorber exhibits excellent thermal and humidity stability, offering a practical, low-cost solution for improving radar immunity in complex driving environments.
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