ARRAY ANTENNA AND DIRECTIONAL CHARACTERISTIC VARYING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To easily change the directional characteristics. SOLUTION: Concerning an array antenna having plural antenna elements 12, this antenna element is divided into plural array groups A, B and C and a point 15 for feeding power to the antenna elements of each array group is separately set for each array group. By selecting the array group to feed power, the directional characteristics can be changed.