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In this paper, a wide tuning range, compact with low power dissipation Active Inductor (AI) has been proposed. The Proposed AI is based on differential configuration for a high Quality Factor (Q-factor). This work uses the concept of feedback connected transconductors, in which the differential configuration of the proposed AI improves the overall inductance and lowers series resistance due to its high transconductance. To stabilize the inductance in the proposed AI a feedback resistor ( \(R_f\) ) is introduced and to enhance the Q-factor, additive capacitance ( \(C_a\) ) is used. Here both \(R_f\) and \(C_a\) are used together to tune the inductance and hence the operating range of frequency. The proposed AI is designed using CMOS 180 nm technology and simulation shows that for 3–4 GHz frequency range ranging from 13-15nH. The Q-factor and inductance at 3.6 GHz operating frequency is 1750 and 14nH. At 1.8 V supply it dissipates 3.8 mW of power.

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Design and Analysis of Differential Configuration Based Active Inductor for 5G Sub-6 GHz Applications

  • 会议论文

  • 发表日期：

    2025年

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  • M. Akilandeswari,
  • Sunanda Ambulker

摘要

In this paper, a wide tuning range, compact with low power dissipation Active Inductor (AI) has been proposed. The Proposed AI is based on differential configuration for a high Quality Factor (Q-factor). This work uses the concept of feedback connected transconductors, in which the differential configuration of the proposed AI improves the overall inductance and lowers series resistance due to its high transconductance. To stabilize the inductance in the proposed AI a feedback resistor ( \(R_f\) ) is introduced and to enhance the Q-factor, additive capacitance ( \(C_a\) ) is used. Here both \(R_f\) and \(C_a\) are used together to tune the inductance and hence the operating range of frequency. The proposed AI is designed using CMOS 180 nm technology and simulation shows that for 3–4 GHz frequency range ranging from 13-15nH. The Q-factor and inductance at 3.6 GHz operating frequency is 1750 and 14nH. At 1.8 V supply it dissipates 3.8 mW of power.