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Electronically adjustable phase shifter using OTAs
Date Issued
December 1, 2010
Type
Conference Paper
Abstract
First-order phase shifter using operational transconductance amplifiers (OTAs) as active elements is presented in this paper. The corner frequency of the proposed phase shifter can be adjusted by electronic means. The purpose of this paper is emphasized on simple configuration and low cost. The phase response between input and output signals against the operating frequency is varied from 180 to 0 degrees of phase lead. The principle of the proposed circuit is confirmed by simulation and experimental results. To verify the proposed circuit performance, the sinusoidal oscillator is provided for circuit application. ©ICROS.
Citation
Iccas 2010 International Conference on Control Automation and Systems, 1622-1625, 2010