A Flexible Dielectric Scattering Surface Realized with Graphite Doped Silicone
20th European Conference on Antennas and Propagation, EuCAP 2026, Dublin, Ireland, 19 - 24 April 2026, (Full Text)
- Publication Type: Conference Paper / Full Text
- Doi Number: 10.23919/eucap68105.2026.11612143
- City: Dublin
- Country: Ireland
- Keywords: Dielectric surfaces, graphite-doped silicone, phase distribution, RCS reduction, scattering surfaces
- Middle East Technical University Affiliated: Yes
Abstract
This paper presents a flexible and low-profile dielectric scattering surface designed for RCS reduction without using metallic patterns. The surface is fabricated from graphite-doped silicone, which allows for dielectric constant control between 3 and 15. The surface maintains a constant thickness of 2.5 mm, while the reflection phase of the dielectric cells is controlled by varying the dielectric constant. Two phase distributions are investigated: a checkerboard configuration for monostatic RCS reduction, and a modified cubic phase distribution for enhanced bistatic RCS reduction. Simulation results show that the proposed flexible checkerboard achieves a 10 dB monostatic reduction while the modified cubic phase distribution effectively suppresses bistatic reflections more than 14 dB at all angles. The proposed design offers a lightweight and conformal solution for electromagnetic stealth applications in X band.