Pao, K.-F.K.-F.PaoFan, C.-T.C.-T.FanChang, T.-H.T.-H.ChangChiu, C.-C.C.-C.ChiuKWO-RAY CHU2019-12-262019-12-262007https://scholars.lib.ntu.edu.tw/handle/123456789/440876Selective suppression of high order axial modes in the gyrotron backward-wave oscillatorconference paper2-s2.0-77951160592https://www.scopus.com/inward/record.uri?eid=2-s2.0-77951160592&partnerID=40&md5=9657edbefa4c8c5199df98540c97e5e6