%0 Journal Article
%T A uniform phase noise QVCO with a feedback current source<br>电流反馈型均一相位噪声正交振荡器
%A Zhou Chunyuan
%A Zhang Lei
%A Qian He
%A <br>周春元
%A 张雷
%A 钱鹤
%J 半导体学报
%D 2012
%I 
%X A novel integrated quadrature voltage controlled oscillator (QVCO) with feedback current source is presented in this paper. Benefiting from the current adjusting function of the feedback current source, the proposed QVCO exhibits a performance of a uniform phase noise over the entire tuning range. This QVCO is implemented in 65-nm CMOS technology. The measurement results show that it draws only 3mA average current from a 1.2V supply and the phase noise is less than -110dBc/Hz @1MHz offset over the entire tuning range. The fluctuation of phase noise @1MHz offset from the center frequency of 2.84GHz to 3.27GHz is less than 1dBc/Hz, which validates the correctness of the proposed current source feedback technique.
%K QVCO
%K uniform phase noise
%K current source feedback
%K CMOS<br>反馈技术
%K 相位噪声
%K 电流源
%K CMOS技术
%K 调谐范围
%K 中心频率
%K 压控振荡器
%K 调节功能
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=025C8057C4D37C4BA0041DC7DE7C758F&aid=6054DFDC987AA8B248B2DC5928CF69BA&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=DF92D298D3FF1E6E&sid=87F1DC36FEAEC5A6&eid=94C357A881DFC066&journal_id=1674-4926&journal_name=半导体学报&referenced_num=0&reference_num=15