A Low-Power 2/5.8-GHz CMOS LC-VCO for Multi-band Wireless Communication Applications
A fully integrated dual-band LC voltage control oscillator designed in a 0.18-um 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 –109 dBc/Hz @1 MHz and -112 dBc/Hz @1 MHz for frequency at 5.8 GHz and 2 GHz, respectively. This oscillator is fabricated in UMCs 0.18-um one-poly-six-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.
Mei-Ling Yeh Wan-Rone Liou T.H.Chen Y.C.Lin Jyh-Jier Ho
Department of Electronics Engineering St. Johns University Tamsui, Taiwan P.R.C. Department of Electronics Engineering National Taiwan Ocean University Keelung, Taiwan, P.R.C.
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
825-828
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）