Antenna device, radio wave arrival direction tracking antenna device, and a radio wave arrival direction estimation method

摘要

To provide a planar antenna, it provides an antenna device capable of estimating the radio wave arrival direction at low cost with less number of parts. The A direction in which the maximum gain is obtained with the planar array antenna 11 toward the front direction, are arranged along one side of the planar array antenna 11, the direction obtained by the maximum gain is different from the planar array antenna 11 orientation 1 the dimension array antenna 12, a memory 40 that records the directional characteristics of the planar array antenna 11 and the one-dimensional array antenna 12, a first detection unit 20 for detecting a received signal received by the planar array antenna 11, a one-dimensional array antenna a second detection unit 30 for detecting a reception signal received at 12, the detection output voltage which the first detection unit 20 outputs a detection output voltage second detection unit 30 outputs, of the radio wave by using the directional characteristics ; and a calculation unit 50 for calculating the angle of arrival.FIELD 1