http://www.freepatentsonline.com/y2019/0124585.html

D Katabi, O Salehi-abari, HZ Al-hassanieh… - US Patent App. 15/458,201, 2019

An approach to acquisition of a propagation direction using a phased antenna array avoids a need to scan space. Given all possible directions for setting the antenna beam, the approach provably finds the optimal direction in logarithmic number of …