표 3. | Table 3. 기존 고조파 억제 LPF와 제안된 SIF의 비교 | Comparison of existing harmonic suppression LPFs and proposed SIFs.

Ref		[4]	[5]	[7]	[9]	[10]	This work
Parameter
Minimum return loss [dB]		12	17.8	19.8	13.7	15	11.8
Cutoff frequency fc [GHz]		1.95	3	1	6.3	2.6	1.1
Harmonic suppression bandwidth		1~8.2 fc	1.08~7 fc	1.2~20 fc	1.17~3.3 fc	1.3~4.2 fc	1.27~36.4 fc
Suppression level [dB]		15	30	20	20	25	40
Substrate		Rogers 4003	HTS film	εγ = 2.55	Taconic	Taconic	Duroid 5880
Total dielectric thickness [mm]		0.8	0.5	0.8	0.762	0.762	0.254
Circuit size	[mm × mm]	25.7×11.56	23.1×3.2	33×21.4	56.4×5.26	33×30	71.14×5
	[λg × λg]	0.272×0.122	0.21×0.03	0.16×0.1	1.694×0.15	0.407×0.37	0.304×0.025