New VDCC based electronically tunable grounded frequency dependent negative resistance simulator employing grounded passive elements

摘要

In this article a new electronically controllable grounded frequency-dependent negative resistance (FDNR) simulation circuit is proposed. The presented circuit employs two voltage differencing current conveyors (VDCCs), two grounded capacitances and one grounded resistance. The proposed configuration simulates a grounded FDNR without any requirement of component matching and enjoys the electronic control through transconductances of VDCCs. The presented circuit exhibit excellent non-ideal behavior and low values of sensitivity figures. The high frequency limitation of realized configuration has been evaluated under the influence of parasitic impedances. The workability of the proposed FDNR has been confirmed by SPICE simulations using CMOS VDCC.