Consider the Antoniou circuit of Fig. 17.20(a) with R5 eliminated, a capacitor C6
Chapter 17, Problem 17.53(choose chapter or problem)
Consider the Antoniou circuit of Fig. 17.20(a) with R5 eliminated, a capacitor C6 connected between node 1 and ground, and a voltage source V2 connected to node 2. Show that the input impedance seen by V2 is R2/s 2 C4C6R1R3. How does this impedance behave for physical frequencies (s = j)? (This impedance is known as a frequency-dependent negative resistance, or FDNR.)
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