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Implementaion of Active Complex Filter with Variable Parameter Using OTAs
Xiaoxing ZHANG Xiayu NI Masahiro IWAHASHI Noriyoshi KAMBAYASHI
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/09/25
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Analog Signal Processing
active filter, operational transconductance amplifier, analog complex filter,
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In this paper, implementation of a first-order active complex filter with variable parameter using operational transconductance amplifiers (OTAs) and grounded copacitors is presented. The proposed configurations can be used as s key building block to realize high-order active complex filters with variable parameter in cascade and leapfrog configuration. Experimental results which are in good agreement with theoretical responses are also given o demonstrate the feasibility of the proposed configurations.