Current-Mode Synthesis Using Node Expansion Techniques

  • Mehul Desai
  • Peter Aronhime


This paper derives node expansion methods by which a given passive network and its nodal admittance matrix are modified by expanding a node into two nodes and introducing a nullor or a dependent source between the newly created nodes. Node expansion provides a systematic method to introduce active elements in a network. The elements of the admitance matrix are modified, but the dimensions of the matrix are unchanged. These methods, which can be applied repetitively, are used to derive filters and oscillators from parental passive networks in a systematic manner.


Original Network Distinct Node Dependent Source Admittance Matrix Passive Network 
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • Mehul Desai
    • 1
  • Peter Aronhime
    • 1
  1. 1.Department of Electrical EngineeringUniversity of LouisvilleLouisvilleUSA

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