Dual-Band High Q-Factor Complementary Split-Ring Resonators Using Substrate Integrated Waveguide Method and Their Applications

Table 1

Performance comparisons of the recent bandpass filter with the other.

Reference	No. of bands	Fractional bandwidth (%)	Insertion loss (dB)	Group delay (ns)	Size ()
[3] (2-stage filter)	1	3.2
[10]	1	10.9	1.2	0.97
[11]	1	10.5	1.45	—
[12]	1	—	2.37	6.24
This work (first resonator)	2	0.2	0.5 & 2.1	4 & 23	(@5.3 GHz)