Dynamic Array Thinning for Adaptive Interference Cancellation

This paper describes an approach to adaptive nulling that changes an array thinning configuration to move sidelobe nulls. Dynamically thinning an array requires that each element in the array can be made active by connecting it to the feed network with a switch. If the number of active elements remains constant, then the gain of the array remains constant. Our results show that nulls can be placed in the array factor by changing the thinning configuration.