A low-power 2/5.8-GHz dual-wide-band CMOS LC-VCO with switched-inductor technique

作者：Liou W R^*; Chen T H; Yeh M L; Ho J J; Jan G E

来源：International Journal of Electronics, 2007, 94(6-8): 623-632.

DOI：10.1080/00207210701322105

• voltage control oscillator (VCO)
• dual-band
• switched inductor technique

A fully integrated dual-band LC voltage control oscillator, designed in a 0.18-mu m CMOS technology for 5.8-GHz/2.0-GHz wireless communication applications, is described. The frequency band switching is accomplished with switched-inductor technique. The dual-band oscillator can be operated in 5.38-6.23 GHz and 1.78-2.07 GHz with 15% frequency tuning range. Two different inductors are used for the frequency band switching. Frequency tuning is implemented by varying the capacitance of a MOS varactor. The measured phase noise is -109dBc/Hz @ 1 MHz and -112dBc/Hz @ 1 MHz for frequency at 5.8 GHz and 2 GHz, respectively. This oscillator is fabricated in UMC's 0.18-mu m one-polysix-metal 1.8 V process. The power dissipation of this dual-band VCO is 11.7 and 9.3 mW for oscillation frequency of 2 GHz and 5.8 GHz, respectively.

• 出版日期2007-8
• 单位中国科学院电工研究所