| 摘要 |
PROBLEM TO BE SOLVED: To provide a phased array feeding device which achieves downsizing, cost reduction and high reliability and is capable of varying a radiation power pattern within a service area, and a phased array antenna apparatus.SOLUTION: A phased array feeding device 10 comprises: a power feeding circuit 20 for feeding power to a phased array feeding part 30 while varying a phase of a high frequency signal to be transmitted; and a plurality of radiation elements 31 forming the phased array feeding part 30. The power feeding circuit 20 includes: a plurality of kinds of power feeding systems 11, 12 and 13 determined by combining a predetermined number of radiation elements of output with the same phase change controlled variable; and a fixed power distributor 21 for distributing power relating to the transmission of the high frequency signal to the power feeding systems in a fixed manner. The plurality of kinds of power feeding systems include the same kind of amplifiers 23 in all the power feeding systems. A phased array antenna apparatus 1 comprises the phased array feeding device 10, a sub reflector 40 and a main reflector 50 which form an imaging reflector. |
