PHASED-ARRAY ANTENNA APPARATUS

摘要

A phased-array antenna apparatus used in a microwave or milliwave band and having a high gain includes a multilayer structure. The multilayer structure is constituted by M radiating elements, M phase shifters, phase shifting control circuits, and a feeding unit. The phase shifters are respectively coupled to the radiating elements to shift the phase of a feeding signal supplied to each of the radiating elements in units of N (M and N are integers equal to or larger than two) bits. The phase shifting control circuits control phase shifting of the phase shifters. The feeding unit is arranged to be coupled to each of the radiating elements.