A method to construct FDNR without requiring capacitance matching and its application to lowfrequency LPF

カテゴリ：国際会議

論文No：A4

グループ名：【C】AVIC2025

発行日：2025/10/20

著者名：Tsuyoshi Ito (National Defence Academy), Takashi Nishi (National Defence Academy), Fujihiko Matsumoto (National Defence Academy)

キーワード：Analog Integrated Circuits,Low Frequency LPF,Active Filters,the Bruton Transformation,FDNR,CCII

要約(英語)：Low-frequency Low-pass filters (LPF) are used in biomedical signal processing devices. LPFs are basically designed using inductors and capacitors. The Bruton transformation is a concept that enables integration of filters without the use of inductors. Capacitors are transformed to FDNRs (Frequency-Dependent Negative Resistance) by the Bruton transformation. Although the conventional FDNR can be realized using two CCII （second generation Current Conveyor), process variations in the integrated capacitors lead to deviation from the ideal characteristics. This paper proposes a method to realize an FDNR which does not require capacitance matching. In addition, the proposed circuit can reduce the capacitance using capacitance scaling techniques.

本誌掲載ページ：13-16p

原稿種別：英語

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