Current-Mode Synthesis Using Node Expansion Techniques
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.
KeywordsOriginal Network Distinct Node Dependent Source Admittance Matrix Passive Network
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