On the Systematic Synthesis of OTA-Based KHN Filters

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14_01_0540_0548.pdf(1.16 MB)
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2014-04
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Mark
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Společnost pro radioelektronické inženýrství
Abstract
According to the nullor-mirror descriptions of OTA, the NAM expansion method for three different types of KHN filters employing OTAs is considered. The type-A filters employing five OTAs have 32 different forms, the type-B filters employing four OTAs have 32 different forms, and the type-C filters employing three OTAs have eight different forms. At last a total of 72 circuits are received. Having used canonic number of components, the circuits are easy to be integrated and both pole frequency and Q-factor can be tuned electronically through tuning bias currents of the OTAs. The MULTISIM simulation results have been included to verify the workability of the derived circuit.
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Keywords
KHN filter, OTA, nullor-mirror element, nodal admittance matrix expansion
Citation
Radioengineering. 2014, vol. 23, č. 1, s. 540-548. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2014/14_01_0540_0548.pdf
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Peer-reviewed
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en
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Creative Commons Attribution 3.0 Unported License
http://creativecommons.org/licenses/by/3.0/
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http://hdl.handle.net/11012/36450
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2014/1
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