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Power Consumption Change in Transistor Ratio of Ring Voltage Controlled Oscillator
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 Title & Authors
Power Consumption Change in Transistor Ratio of Ring Voltage Controlled Oscillator
Moon, Dongwoo; Shin, Hooyoung; Lee, Milim; Kang, Inseong; Lee, Changhyun; Park, Changkun;
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 Abstract
In this paper, a 5.08 GHz Ring Voltage Controlled Oscillator(Ring VCO) was implemented using standard CMOS technology. The proposal Ring VCO is 3-stage structure. This research confirmed that the each stage's different transistor size ratio influence the current change and alter power consumption consequentially. This circuit is formed to control the current thereby adding the Current Mirror and to tune the frequency by supplying control voltage. It has an 65.5 %(1.88~5.45 GHz) tuning range. The measured output power is -0.30 dBm. The phase noise is -87.50 dBc/Hz @1 MHz offset with operating frequency of 5.08 GHz fundamental frequency. The total power consumption of Ring VCO is 31.2 mW with 2.4 V supply voltage.
 Keywords
Inverter;Ring VCO;Wide Tuning Range;Low Phase Noise;Low Power Consumption;
 Language
Korean
 Cited by
 References
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