https://scholars.lib.ntu.edu.tw/handle/123456789/147604
標題: | A Low-Phase-Noise K-Band CMOS VCO | 作者: | Hsieh, Hsieh-Hung Lu, Liang-Hung |
關鍵字: | Capacitive feedback;CMOS radio frequency (RF);differential colpitts oscillators;K-band;LC-tank;low phase noise;voltage-controlled oscillators (VCOs) | 公開日期: | 十月-2006 | 出版社: | Taipei:National Taiwan University Dept Elect Engn | 卷: | VOL. 16 | 期: | NO. 10 | 起(迄)頁: | - | 來源出版物: | IEEE Microwave and Guided Wave Letters | 摘要: | A novel circuit topology for low-phase-noise voltage controlled oscillators (VCOs) is presented in this letter. By employing a PMOS cross-coupled pair with a capacitive feedback, superior circuit performance can be achieved especially at higher frequencies. Based on the proposed architecture, a prototype VCO implemented in a 0.18- m CMOS process is demonstrated for K-band applications. From the measurement results, the VCO exhibits a 510-MHz frequency tuning range at 20 GHz. The output power and the phase noise at 1-MHz offset are 3 dBm and 111 dBc/Hz, respectively. The fabricated circuit consumes a dc power of 32 mW from a 1.8-V supply voltage. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/200611150121768 | 其他識別: | 246246/200611150121768 |
顯示於: | 電機工程學系 |
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