Active Cancellation of the RCS of a Large Aircraft Using of Stealth 4-Port Magnetic Antenna with Heterogenic Ferrite Core

In the paper, application of a heterogenic magnetic antenna (MA) for active cancellation of bistatic radar cross section (RCS) of stealth object like large aircraft (LA) is studied (using HFSS). Magnetic antenna is located in niche of the fuselage. Heterogenic ferrite core of MA is constructed as a square loop. Each side of the loop consists of five sections with different cross sections (to increase the antenna efficiency) and a winding with an excitation port. Excitation stealth modes of the MA ports to cancel the bistatic RCS of the LA in the bandwidth 10 to 30 MHz is investigated numerically. Angular sectors and the levels of RCS cancellation for irradiation from the right wing of the LA in the case of plane wave with horizontal polarization are analyzed.