Performance Analysis of Two Novel CMOS Active Grounded and Floating Inductors Suitable for RF Bandpass Filter Applications

Author(s): Vikash Kumar*, Aminul Islam

Journal Name: Recent Advances in Electrical & Electronic Engineering
Formerly Recent Patents on Electrical & Electronic Engineering

Volume 11 , Issue 4 , 2018

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Graphical Abstract:


Background: In this paper, the grounded and floating active inductors (GI and FI) employing Voltage Differencing Transconductance Amplifier (VDTA) as an active element are realized.

Methods: To demonstrate the performance of both the inductors, two subsequent bandpass filter configurations (BPFGI and BPFFI) have been designed and implemented. The filter BPFGI (BPFFI) is designed at a center frequency of 1.318 (1.318) GHz, bandwidth of 27.32 (31.26) MHz, quality factor of 48.24 (42.16) and figure-of-merit of 82.8 (74.3). The presented configurations are spiral inductor-less and are composed of only transistors grounded capacitors and one resistor, thereby validating their suitability for fully integrated circuit applications. The performances of active inductors and bandpass filters are investigated in the presence of parasitics through sensitivity analysis.

Results: The high frequency limitations of proposed inductor configurations have also been presented. Furthermore, the impact of process and environmental variations has also been investigated.

Conclusion: To support the theoretical analysis, the simulation of the proposed circuit is done using Virtuoso Analog Design Environment of Cadence @ 45-nm CMOS technology node.

Keywords: Active Inductor, analog integrated circuit, band pass filter, sensitivity, voltage differencing transconductance amplifier, variation.

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Article Details

Year: 2018
Published on: 07 November, 2018
Page: [487 - 498]
Pages: 12
DOI: 10.2174/2352096511666180116155417
Price: $25

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