Being the configuration method of the array antenna and the configuration method of the array antenna which presumes the multifrequency shared antenna

摘要

PROBLEM TO BE SOLVED: To provide a multi-frequency common antenna assembly which can be used in common for a plurality of frequencies, arrangement of an array antenna constituting the multifrequency common antenna assembly, and an arrival direction estimating device, capable of measuring arrival directions of arrival waves of a plurality of frequencies with a single device.;SOLUTION: The multi-frequency common antenna assembly is equipped with a plurality of array antennas (1, 2, and 3) constituted of a plurality of antennas, connection parts (4d1 and 4d2) for connecting the antennas of the plurality of array antennas, and a feed part (5) which performs transmission to and reception from the antennas; and the plurality of array antennas are arranged in layers by transmission/reception frequencies and performs transmission and reception of different frequencies, by using the same feed part in common. The respective array antennas are arranged in layers, to constitute an apparently single antenna, antennas which are in mutually corresponding relation among the respective layers are connected by a connection part, and one-end sides of the antennas are fed by the feed part, which is thus used in common for the plurality of frequencies.;COPYRIGHT: (C)2005,JPO&NCIPI