ACTIVE PHASED ARRAY ANTENNA DEVICE

摘要

PROBLEM TO BE SOLVED: To perform beam control over a wide range suppressing the grating lobe of an antenna device. SOLUTION: Signals distributed by a distributor 21 are amplified by amplifiers 23a and 23b after phases are controlled by phase shifters 22a and 22b. These amplified signals are respectively bisected by distributors 24a and 24b. A combination coupler 26 puts together signals from the distributors 24a and 24b and outputs the signal put together to antenna elements. Concerning signals to be outputted to antenna elements 27a and 27c, line length differences are respectively controlled by delay lines 25a and 25b.