Arabian Journal for Science and Engineering

, Volume 38, Issue 11, pp 3125–3132 | Cite as

A New 0.25–12.5 GHz High Quality Factor Low-Power Active Inductor Using Local RC Feedback to Cancel Series-Loss Resistance

Research Article - Electrical Engineering


In this paper, the analysis and design of a new active inductor (AI) with a very high quality factor (QF) in 90 nm CMOS technology and frequency range of 0.25–12.5 GHz are presented. Using local resistive-capacitive (RC) shunt feedback, the QF of this AI could be improved more than what has been achieved in previous reports. The proposed circuit structure allows independent adjustment of the QF and self-resonance frequency (SRF). A very high QF of 13,159 is obtained at the frequency of 6.6 GHz with a 2.2 nHinductance; while noise voltage and power dissipation are less than 4.6 nv/\({\sqrt{H\rm {z}}}\) and 4 mW, respectively. To the best of authors’ knowledge, this is the first time that an RC shunt feedback is used to cancel the series-loss resistance of an AI.


Active inductor High quality factor Local RC feedback Series-loss resistance cancellation Single-ended 


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© King Fahd University of Petroleum and Minerals 2012

Authors and Affiliations

  1. 1.Department of Electrical EngineeringIran University of Science and Technology, NarmakTehranIran

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