A Comparison of the Dynamic Range of FDNR Building Blocks
A multitude of various active selective blocks are utilized for the design of active filters based on RLC prototypes.The design of low-pass filters is often realized by means of the Bruton transformation,in which the RLC prototype structure is transformed into an RCD structure.The basic building blocks applied within the latter structure are denoted as dual capacitors(FDNR).These active blocks,realized in various circuit configurations with different numbers of active circuit elements(operational amplifiers,OA),have recently been described by several authors 1,2.At present,it is possible to fabricate ARC filters for the frequency range within units of MHz,using simple and economical selective FDNR building blocks that work successfully with one active element(OA).The fabrication is enabled by modern active elements(such as voltage operational amplifiers working in the GBW of approximately 1 GHz or CFA amplifiers applicable up to higher frequencies)and by the synthesis method based on purposefully lossy RLC prototypes 3,4.This research report presents a comparison of the dynamic ranges of the most widely utilized lossy FDNR building blocks(types I and V),and the authors intend to employ the proposed comparative outline to help improve the practical exploitation of these capacitors in the process of optimizing active frequency filters.
Z.Szabó J.Sedlá(c)ek M.Friedl
Department of Theoretical and Experimental Electrical Engineering Brno University of Technology,Kolejni 2906/4,Brno 612 00,Czech Republic
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
159-162
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）