RECONFIGURABLE REFLECTARRAY ANTENNA Boasts 25,600 Elements

摘要

GENERALLY, RADAR and imaging systems call for antennas with large apertures and fast beam-scanning capabilities. Although phased-array antennas have been accepted as a rather natural "fit" for such ap- plications, electronically reconfigurable reflec-tarray antennas are now being considered an option as well. One large one in particular— featuring 160 x 160 reflecting elements—has been designed, fabricated, and evaluated for a millimeter-wave system at 60 GHz. This antenna is the work of Hirokazu Kamoda, Jun Tsumochi, Takao Kuki, and Toru Iwasaki from Japan Broadcasting Corp. together with Osamu Hashimoto from Japan's Aoyama Gakuin University.