DISTRIBUTED ARRAY ANTENNA DEVICE AND SIDE LOBE SUPPRESSION METHOD

摘要

PROBLEM TO BE SOLVED: To suppress power in a side lobe direction while increasing power in a main lobe direction generated by in-phase synthesis.;SOLUTION: A distributed array antenna device comprises: a plurality of antenna devices each including an orientation direction tracking mechanism and disposed in an array shape; and orientation direction error compensation means which controls a phase and an amplitude of a transmission signal that is transmitted from each of antennas, compensates for an orientation direction error after an orientation direction of each of the antenna is adjusted, and performs control in such a manner that the in-phase synthesis is performed on phases in a predetermined direction. In a path of a signal transmitted from at least one of the plurality of antenna devices, a structure is disposed which has such properties that a signal in a specific frequency band is permeated by a structure in which metals or dielectrics are periodically arrayed, and that a radiation phase of the permeated signal is made different in accordance with an incident angle of the signal. The orientation direction error is compensated by the orientation direction error compensation means, such that in-phase synthesis is performed in the main lobe direction and that power synthesis is performed with different phases in the side lobe direction.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2016,JPO&INPIT