Realization of Leapfrog Filters Using Current Differential Buffered Amplifiers
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概要
- 論文の詳細を見る
In this paper, is shown an approach to realize leapfrog structures obtained from proto-type passive RLC ladder filters using current differencing buffered amplifiers (CDBA) as active elements. The use of the CDBA's provides advantages that the realization procedure is simplified and the number of active components required is reduced. The approach is quite suitable for the realization of band-pass ladder filters, which generally requires a complicated structure to simulate LC series and/or parallel resonant branches by the conventional opamp-based leapfrog filters. A simple circuit configuration of the CDBA suitable for high frequency and low power supply voltage applications is also presented. As design examples, a fifth-order Buttcrworth low-pass ladder filter and a sixth-order Chebyshev bandpass ladder filter are designed. The effectiveness and the correctness of the proposed approach and the characteristics of the proposed filters are verified and examined through computer simulation.
- 社団法人電子情報通信学会の論文
- 2003-02-01
著者
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Fujii Nobuo
Department Of Civil Engineering
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Surakampontorn Wanlop
Faculty Of Engineering And Research Center For Communication And Information Technology (reccit) Kin
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Fujii Nobuo
Department Of Physical Electronics Faculty Of Engineering Tokyo Institute Of Technology
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TANGSRIRAT Worapong
Faculty of Engineering and Research Center for Communication and Information Technology (ReCCIT),Kin
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Tangsrirat Worapong
Faculty Of Engineering And Research Center For Communication And Information Technology (reccit) Kin
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FUJII Nobuo
Department of Physical Electronics,Faculty of Engineering,Tokyo Institute of Technology
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