Adaptation of Reflectarray Antenna to Yield Scanning-Spot Beam

Herein, a novel reflectarray antenna design with a mirror configuration is proposed. Through adaptation of the reflectarray antenna's frequency and polarization (two of its characteristics that change beam direction), a multi-scanning beam can be realized, whose performance matches that of a conventional multi-spot beam with one reflecting mirror. A scanning-spot beam that changes beam direction using frequency in the elevation direction and polarization in the azimuth direction in the Ka band is examined. As a result, it is verified that the proposed design efficiently covers the desired service area.