A dual band, wide tuning range CMOS voltage controlled oscillator for multi-band radio

被引：8
|
作者：
Cath, Burak [1 ]
Hella, Alona M. [1 ]
机构：
[1] Rensselaer Polytech Inst, Dept Elect Comp & Syst Engn, Troy, NY 12180 USA
来源：
2007 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS (RFIC) SYMPOSIUM, DIGEST OF PAPERS | 2007年
关键词：
multi-band radio; CMOS voltage controlled oscillators; double-driven transformers;
D O I：
10.1109/RFIC.2007.380954
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel multi-band VCO is presented, using a double-tuned, current-driven transformer load The dual frequency range oscillator (low band and high band), is based on the ON/OFF switching of current in the secondary port of the transformer. The concept is validated through measurement results from a fabricated prototype in 0.25 mu m CMOS technology The VCO has a measured tuning range of 1.94 to 2.55GHz for the low-frequency band and 3.6 to 4.77GHz for the high-frequency band It draws a current of 1.0 mA from 1.8 V supply with a measured phase noise of 116dBc/Hz at 1MHz offset from 2.55GHz carrier. For the high frequency band, it draws 7.5mA from the same supply with a phase noise of -106dBc/Hz at 1MHz offset from 4.77GHz carrier.
引用
收藏
页码：595 / +
页数：2
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