표 2. | Table 2. 최근 연구된 SIW 대역통과 여파기들과의 성능 비교 | Performances comparison with state-of-the-art SIW BPFs.

Ref.	f0 (GHz)	FBW (%)	Stage	Insertion loss (dB)	PCB layer	Cavity	Circuit size (λ0×λ0)	Difficulty
[6]	4	16	4	1.37	1	QM SIW	0.689λ0×0.413λ0	Low
[7]	9.1	19.8	3	1.3	3	QM & OEM SIW	0.218λ0×0.218λ0	Normal
[8]	5.5	23.3	4	N/A	4	OEM SIW	0.277λ0×0.352λ0	High
[12]	5.13	19	2	0.81	2	HM SIW	0.342λ0×0.992λ0	Normal
[13]	4.65	12	3	2.2	3	HM SIW	0.403λ0×0.558λ0	Normal
[14]	8	8	3	0.9	1	FM SIW	0.528λ0×1.24λ0	Low
[15]	10	5	4	0.93	1	FM SIW	1.166λ0×1.426λ0	Low
This work	5.5	12	3	1.26	1	QM & OEM SIW	0.403λ0×0.458λ0	Low