Investigation on the Electromagnetic Scattering from The Chaff Cloud in Airflow with VRT

Chaff cloud has been widely used in many battle scenes for its low cost and good jamming performance. Chaff is always released from the airplane. In this paper, the model of the chaff cloud in airflow is descried using reaction-advection-diffusion equation. Then, Vector Transport Theory (VRT) is adopted to evaluate the scattering properties of the chaff cloud. In this paper, the transmitting and receiving antenna are lineer or circular polarized. Simulations show that if the receiving antenna is liner polarized, it is appropriate to illuminate the chaff cloud with a circular polarization wave to achieve a good jamming performance. At the samr time, one can optimize the design of the chaff element to achieve a uniform orientation distributions for improving the jamming performance.