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

Table 2

Element value and performance index of band-stop filters with band-pass negative group delay when C₂ is changed.

C1 (pF)	L1 (nH)	R1, R2 (Ω)	C2 (pF)	L2 (nH)	f0 (MHz)	τ (f0) (ns)	IL (dB)
120	3.9	50	1.6	970	128	−12.41	3.5
120	3.9	50	16	970	40	−11.78	3.5
120	3.9	50	160	970	13	−12.29	3.5