A Novel Band-Stop Filter with Band-Pass, High-Pass, and Low-Pass Negative Group Delay Characteristics

Table 8

Element values of low-pass negative group delay circuits with different values of L₂.

C1 (pF)	L1 (nH)	R1, R2 (Ω)	C2 (pF)	L2 (nH)	τ (0) (ns)	IL (dB)
120	3.9	50	0	470	−3.08	3.5
120	3.9	50	0	390	−2.54	3.5
120	3.9	50	0	200	−1.28	3.5

τ(0) represents the minimum negative group delay (f = 0).