Ming-Da TsaiYi-Hsien ChoHUEI WANG2018-09-102018-09-102005-05http://scholars.lib.ntu.edu.tw/handle/123456789/316545[SDGs]SDG7A 5-GHz low phase noise differential colpitts CMOS VCOjournal article10.1109/lmwc.2005.847696