Wide Tuning Range CMOS Colpitts VCO Based on Tunable Active Inductor
Publish place: Telecommunication devices، Vol: 1، Issue: 1
Publish Year: 1391
Type: Journal paper
Language: English
View: 111
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Document National Code:
JR_TDMA-1-1_007
Index date: 19 August 2023
Wide Tuning Range CMOS Colpitts VCO Based on Tunable Active Inductor abstract
In this paper, a new differential Colpitts voltage-controlled oscillator (VCO) is presented. The VCO is based on the gm-boosted structure to relax the oscillation start-up current requirement and reduce the DC power consumption in comparison to conventional Colpitts structures. In the proposed VCO, a tunable active inductor is utilized as a part of LC tank instead of passive inductor with constant inductance. The proposed VCO is designed and simulated in ADS in a 0.18μm CMOS process. Simulation results indicate that the proposed VCO has a wide tuning range in comparison to other reported designs while consumes less DC power.
Wide Tuning Range CMOS Colpitts VCO Based on Tunable Active Inductor Keywords: