A low-phase-noise K-band CMOS VCO
A low-phase-noise K-band CMOS VCO
复制标题
低相位噪声 K 波段 CMOS VCO
DOI:
10.1109/lmwc.2006.882386
复制
发表时间:
2006
影响因子:
3
通讯作者:
Liang
中科院分区:
文献类型:
--
作者:
H. Hsieh;Liang
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-mum CMOS process is demonstrated for K-band applications. From the measurement results, the VCO exhibits a 510-MHz frequency tuning range at 20GHz. The output power and the phase noise at 1-MHz offset are -3dBm and -111dBc/Hz, respectively. The fabricated circuit consumes a dc power of 32mW from a 1.8-V supply voltage