Chen, S.H.S.H.ChenPao, K.F.K.F.PaoChang, T.H.T.H.ChangFan, C.T.C.T.FanKWO-RAY CHU2019-12-262019-12-262002https://scholars.lib.ntu.edu.tw/handle/123456789/440886Study of axial modes in the gyrotron backward-wave oscillatorconference paper10.1109/ICIMW.2002.10762202-s2.0-84964514082https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964514082&doi=10.1109%2fICIMW.2002.1076220&partnerID=40&md5=e463dbf7c178adbb45afc7615a2b6df3