Research on Active Cancellation Technology Based on Airborne Conformal Antenna for Low-frequency RCS Reduction

In this paper, a conformal antenna was designed and used as a source of active cancellation in response to the need for low-frequency stealth in aircraft. The stealth effect of active cancellation under different polarization conditions is analyzed and investigated with simultaneous excitation of planar wave source and antenna port source. The results show that there is a reduction of about 30 dB under different polarization conditions, and this research scheme provides a reference value for the application prospect of active cancellation.