The generation of far side lobe echoes for offset parabolic antenna is analysed in this article, and the experiments have proved the existence of far side lobe echoes.

It is concluded that an offset feed parabolic antenna has the advantage in side lobe suppression over central feed parabolic antenna.

Because the side lobe of phase array antenna is on the high side, it will be reconnoitred and jammed easily by the electronic warfare system.