FDTD-SPICE for Characterizing Metamaterials Integrated with Electronic Circuits

Figure 6

(a) Basic non-Foster element: NIC configuration based on Linvill's design and equivalent circuit model for the loop-based metamaterial integrated with NIC negative inductor. (b) Transmission coefficient for metamaterial of loops terminated with (i) 𝐶_𝑝=0.13 pF, 𝐿=4 nH; (ii) 𝐶_𝑝=0.2 pF, 𝐿=4 nH, NIC circuit 𝐿_𝑛=−2 nH; (iii) 𝐶_𝑝=0.2 pF, 𝐿=2 nH.

(a)

(b)