MULTI-BEAM REFLECT ARRAY

PROBLEM TO BE SOLVED: To provide a multi-beam reflect array which can reflect an incident wave in a plurality of arbitrary directions.SOLUTION: A multi-beam reflect array has a plurality of elements arranged in a matrix form, in a first axial direction and a second axial direction, reflects an incident wave in a first desired direction by a plurality of elements belonging to a first region, and reflects the incident wave in a second desired direction by a plurality of elements belonging to a second region. In at least one of the first and second regions, the phase of a reflection wave reflected by a certain element is different from the phase of a reflection wave reflected by an element adjacent to the some element in the first axial direction by a predetermined value, and is equal to the phase of a reflection wave reflected by an element adjacent to a certain element in the second axial direction.