Detection of Ordinary and Extraordinary Waves Using an Antenna Array with Controlled Polarization Characteristic

Abstract

Results on detection of waves with oppositely rotating electric vectors using a phased antenna array with controlled polarization characteristic that can be rotated in the plane of the incident wave are presented. Owing to the stroboscopic effect, the wave that is split upon ionospheric propagation into ordinary and extraordinary components can be detected at two frequencies: difference frequency that is equal to the rotation frequency of the polarization characteristic of the antenna and sum frequency depending on the type of the interacting component (ordinary or extraordinary).