Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) A. Kondo and Y. Yamada,Beam steering characteristics of multibeam antenna by subreflector drive,1987 Antennas and Propagation Society International Symposium,,Institute of Electrical and Electronics Engineers (IEEE),2005-03-23,25,,990-993,https://cir.nii.ac.jp/crid/1872835442656658816,https://doi.org/10.1109/aps.1987.1149961