Negative Group Delay Circuit Based on Microwave Recursive Filters

Table 2

Dimension of transmission line for different group delay (substrates: Rogers RO3010 with dielectric constant of 10.2 and thickness of 25 mils).

Group delay (ns)	Dimensions
	Width (mm)	Length (mm)
−0.5 ns
TL1()	0.459072	29.3245
TL2()	0.503547	29.2085
−1.0 ns
TL1()	0.417143	29.4401
TL2()	0.459072	29.3245
−2.0 ns
TL1()	0.340949	29.6696
TL2()	0.376	29.5539