Simulation design of a rectangular low-frequency amplifier

This paper presents the design and analysis of a low frequency passive scattering echo intensifier. The method of realizing low-frequency scattering enhancement for small target is explained. Based on the resonant frequency of planar spiral inductance and the calculation formula of target radar cross section (RCS), by finding out the resonant frequency of the target, make it resonant with the operating frequency to achieve large RCS value of small target. Finally, the rationality of the electromagnetic simulation and simulation calculation of the target is verified through the FEKO simulation platform.